319 files changed, 39027 insertions, 0 deletions

diff --git a/src/lib/libc/crypt/Makefile.inc b/src/lib/libc/crypt/Makefile.inc
new file mode 100644
index 0000000000..c852523372
--- /dev/null
+++ b/src/lib/libc/crypt/Makefile.inc
@@ -0,0 +1,14 @@
+#       $OpenBSD: Makefile.inc,v 1.19 2013/10/21 20:33:23 deraadt Exp $
+
+.PATH: ${LIBCSRCDIR}/arch/${MACHINE_CPU}/crypt ${LIBCSRCDIR}/crypt
+
+SRCS+=  crypt.c crypt2.c md5crypt.c arc4random.c blowfish.c bcrypt.c
+
+MAN+=   crypt.3 blowfish.3 arc4random.3
+MLINKS+=crypt.3 encrypt.3 crypt.3 setkey.3 crypt.3 des_cipher.3
+MLINKS+=crypt.3 bcrypt_gensalt.3 crypt.3 bcrypt.3 crypt.3 md5crypt.3
+MLINKS+=crypt.3 des_setkey.3 blowfish.3 blf_key.3 blowfish.3 blf_enc.3
+MLINKS+=blowfish.3 blf_dec.3 blowfish.3 blf_ecb_encrypt.3
+MLINKS+=blowfish.3 blf_ecb_decrypt.3 blowfish.3 blf_cbc_encrypt.3
+MLINKS+=blowfish.3 blf_cbc_decrypt.3
+MLINKS+=arc4random.3 arc4random_buf.3 arc4random.3 arc4random_uniform.3
diff --git a/src/lib/libc/crypt/arc4random.3 b/src/lib/libc/crypt/arc4random.3
new file mode 100644
index 0000000000..476bc28017
--- /dev/null
+++ b/src/lib/libc/crypt/arc4random.3
@@ -0,0 +1,114 @@
+.\" $OpenBSD: arc4random.3,v 1.32 2013/10/22 06:51:41 jmc Exp $
+.\"
+.\" Copyright 1997 Niels Provos <provos@physnet.uni-hamburg.de>
+.\" All rights reserved.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\" 3. All advertising materials mentioning features or use of this software
+.\"    must display the following acknowledgement:
+.\"      This product includes software developed by Niels Provos.
+.\" 4. The name of the author may not be used to endorse or promote products
+.\"    derived from this software without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+.\" IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+.\" OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+.\" IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+.\" INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+.\" NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+.\" DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+.\" THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+.\" (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+.\" THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+.\"
+.\" Manual page, using -mandoc macros
+.\"
+.Dd $Mdocdate: October 22 2013 $
+.Dt ARC4RANDOM 3
+.Os
+.Sh NAME
+.Nm arc4random ,
+.Nm arc4random_buf ,
+.Nm arc4random_uniform
+.Nd random number generator
+.Sh SYNOPSIS
+.In stdlib.h
+.Ft u_int32_t
+.Fn arc4random "void"
+.Ft void
+.Fn arc4random_buf "void *buf" "size_t nbytes"
+.Ft u_int32_t
+.Fn arc4random_uniform "u_int32_t upper_bound"
+.Sh DESCRIPTION
+This family of functions provides higher quality data than those
+described in
+.Xr rand 3 ,
+.Xr random 3 ,
+and
+.Xr drand48 3 .
+.Pp
+Use of these functions is encouraged for almost all random number
+consumption because the other interfaces are deficient in either
+quality, portability, standardization, or availability.
+These functions can be called in almost all coding environments,
+including
+.Xr pthreads 3
+and
+.Xr chroot 2 .
+.Pp
+High quality 32-bit pseudo-random numbers are generated very quickly.
+On each call, a cryptographic pseudo-random number generator is used
+to generate a new result.
+One data pool is used for all consumers in a process, so that consumption
+under program flow can act as additional stirring.
+The subsystem is re-seeded from the kernel random number subsystem using
+.Xr sysctl 3
+on a regular basis, and also upon
+.Xr fork 2 .
+.Pp
+The
+.Fn arc4random
+function returns a single 32-bit value.
+.Pp
+.Fn arc4random_buf
+fills the region
+.Fa buf
+of length
+.Fa nbytes
+with random data.
+.Pp
+.Fn arc4random_uniform
+will return a single 32-bit value, uniformly distributed but less than
+.Fa upper_bound .
+This is recommended over constructions like
+.Dq Li arc4random() % upper_bound
+as it avoids "modulo bias" when the upper bound is not a power of two.
+In the worst case, this function may consume multiple iterations
+to ensure uniformity; see the source code to understand the problem
+and solution.
+.Sh RETURN VALUES
+These functions are always successful, and no return value is
+reserved to indicate an error.
+.Sh SEE ALSO
+.Xr rand 3 ,
+.Xr rand48 3 ,
+.Xr random 3
+.Sh HISTORY
+These functions first appeared in
+.Ox 2.1 .
+.Pp
+The original version of this random number generator used the
+RC4 (also known as ARC4) algorithm.
+In
+.Ox 5.5
+it was replaced with the ChaCha20 cipher, and it may be replaced
+again in the future as cryptographic techniques advance.
+A good mnemonic is
+.Dq A Replacement Call for Random .
diff --git a/src/lib/libc/crypt/arc4random.c b/src/lib/libc/crypt/arc4random.c
new file mode 100644
index 0000000000..e836395803
--- /dev/null
+++ b/src/lib/libc/crypt/arc4random.c
@@ -0,0 +1,236 @@
+/*      $OpenBSD: arc4random.c,v 1.26 2013/10/21 20:33:23 deraadt Exp $ */
+
+/*
+ * Copyright (c) 1996, David Mazieres <dm@uun.org>
+ * Copyright (c) 2008, Damien Miller <djm@openbsd.org>
+ * Copyright (c) 2013, Markus Friedl <markus@openbsd.org>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+/*
+ * ChaCha based random number generator for OpenBSD.
+ */
+
+#include <fcntl.h>
+#include <limits.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <sys/types.h>
+#include <sys/param.h>
+#include <sys/time.h>
+#include <sys/sysctl.h>
+#include "thread_private.h"
+
+#define KEYSTREAM_ONLY
+#include "chacha_private.h"
+
+#ifdef __GNUC__
+#define inline __inline
+#else                           /* !__GNUC__ */
+#define inline
+#endif                          /* !__GNUC__ */
+
+#define KEYSZ   32
+#define IVSZ    8
+#define BLOCKSZ 64
+#define RSBUFSZ (16*BLOCKSZ)
+static int rs_initialized;
+static pid_t rs_stir_pid;
+static chacha_ctx rs;           /* chacha context for random keystream */
+static u_char rs_buf[RSBUFSZ];  /* keystream blocks */
+static size_t rs_have;          /* valid bytes at end of rs_buf */
+static size_t rs_count;         /* bytes till reseed */
+
+static inline void _rs_rekey(u_char *dat, size_t datlen);
+
+static inline void
+_rs_init(u_char *buf, size_t n)
+{
+        if (n < KEYSZ + IVSZ)
+                return;
+        chacha_keysetup(&rs, buf, KEYSZ * 8, 0);
+        chacha_ivsetup(&rs, buf + KEYSZ);
+}
+
+static void
+_rs_stir(void)
+{
+        int     mib[2];
+        size_t  len;
+        u_char rnd[KEYSZ + IVSZ];
+
+        mib[0] = CTL_KERN;
+        mib[1] = KERN_ARND;
+
+        len = sizeof(rnd);
+        sysctl(mib, 2, rnd, &len, NULL, 0);
+
+        if (!rs_initialized) {
+                rs_initialized = 1;
+                _rs_init(rnd, sizeof(rnd));
+        } else
+                _rs_rekey(rnd, sizeof(rnd));
+        memset(rnd, 0, sizeof(rnd));
+
+        /* invalidate rs_buf */
+        rs_have = 0;
+        memset(rs_buf, 0, RSBUFSZ);
+
+        rs_count = 1600000;
+}
+
+static inline void
+_rs_stir_if_needed(size_t len)
+{
+        pid_t pid = getpid();
+
+        if (rs_count <= len || !rs_initialized || rs_stir_pid != pid) {
+                rs_stir_pid = pid;
+                _rs_stir();
+        } else
+                rs_count -= len;
+}
+
+static inline void
+_rs_rekey(u_char *dat, size_t datlen)
+{
+#ifndef KEYSTREAM_ONLY
+        memset(rs_buf, 0,RSBUFSZ);
+#endif
+        /* fill rs_buf with the keystream */
+        chacha_encrypt_bytes(&rs, rs_buf, rs_buf, RSBUFSZ);
+        /* mix in optional user provided data */
+        if (dat) {
+                size_t i, m;
+
+                m = MIN(datlen, KEYSZ + IVSZ);
+                for (i = 0; i < m; i++)
+                        rs_buf[i] ^= dat[i];
+        }
+        /* immediately reinit for backtracking resistance */
+        _rs_init(rs_buf, KEYSZ + IVSZ);
+        memset(rs_buf, 0, KEYSZ + IVSZ);
+        rs_have = RSBUFSZ - KEYSZ - IVSZ;
+}
+
+static inline void
+_rs_random_buf(void *_buf, size_t n)
+{
+        u_char *buf = (u_char *)_buf;
+        size_t m;
+
+        _rs_stir_if_needed(n);
+        while (n > 0) {
+                if (rs_have > 0) {
+                        m = MIN(n, rs_have);
+                        memcpy(buf, rs_buf + RSBUFSZ - rs_have, m);
+                        memset(rs_buf + RSBUFSZ - rs_have, 0, m);
+                        buf += m;
+                        n -= m;
+                        rs_have -= m;
+                }
+                if (rs_have == 0)
+                        _rs_rekey(NULL, 0);
+        }
+}
+
+static inline void
+_rs_random_u32(u_int32_t *val)
+{
+        _rs_stir_if_needed(sizeof(*val));
+        if (rs_have < sizeof(*val))
+                _rs_rekey(NULL, 0);
+        memcpy(val, rs_buf + RSBUFSZ - rs_have, sizeof(*val));
+        memset(rs_buf + RSBUFSZ - rs_have, 0, sizeof(*val));
+        rs_have -= sizeof(*val);
+        return;
+}
+
+u_int32_t
+arc4random(void)
+{
+        u_int32_t val;
+
+        _ARC4_LOCK();
+        _rs_random_u32(&val);
+        _ARC4_UNLOCK();
+        return val;
+}
+
+void
+arc4random_buf(void *buf, size_t n)
+{
+        _ARC4_LOCK();
+        _rs_random_buf(buf, n);
+        _ARC4_UNLOCK();
+}
+
+/*
+ * Calculate a uniformly distributed random number less than upper_bound
+ * avoiding "modulo bias".
+ *
+ * Uniformity is achieved by generating new random numbers until the one
+ * returned is outside the range [0, 2**32 % upper_bound).  This
+ * guarantees the selected random number will be inside
+ * [2**32 % upper_bound, 2**32) which maps back to [0, upper_bound)
+ * after reduction modulo upper_bound.
+ */
+u_int32_t
+arc4random_uniform(u_int32_t upper_bound)
+{
+        u_int32_t r, min;
+
+        if (upper_bound < 2)
+                return 0;
+
+        /* 2**32 % x == (2**32 - x) % x */
+        min = -upper_bound % upper_bound;
+
+        /*
+         * This could theoretically loop forever but each retry has
+         * p > 0.5 (worst case, usually far better) of selecting a
+         * number inside the range we need, so it should rarely need
+         * to re-roll.
+         */
+        for (;;) {
+                r = arc4random();
+                if (r >= min)
+                        break;
+        }
+
+        return r % upper_bound;
+}
+
+#if 0
+/*-------- Test code for i386 --------*/
+#include <stdio.h>
+#include <machine/pctr.h>
+int
+main(int argc, char **argv)
+{
+        const int iter = 1000000;
+        int     i;
+        pctrval v;
+
+        v = rdtsc();
+        for (i = 0; i < iter; i++)
+                arc4random();
+        v = rdtsc() - v;
+        v /= iter;
+
+        printf("%qd cycles\n", v);
+        exit(0);
+}
+#endif
diff --git a/src/lib/libc/crypt/bcrypt.c b/src/lib/libc/crypt/bcrypt.c
new file mode 100644
index 0000000000..d7af344b97
--- /dev/null
+++ b/src/lib/libc/crypt/bcrypt.c
@@ -0,0 +1,365 @@
+/*      $OpenBSD: bcrypt.c,v 1.37 2014/04/08 20:14:25 tedu Exp $        */
+
+/*
+ * Copyright (c) 2014 Ted Unangst <tedu@openbsd.org>
+ * Copyright (c) 1997 Niels Provos <provos@umich.edu>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+/* This password hashing algorithm was designed by David Mazieres
+ * <dm@lcs.mit.edu> and works as follows:
+ *
+ * 1. state := InitState ()
+ * 2. state := ExpandKey (state, salt, password)
+ * 3. REPEAT rounds:
+ *      state := ExpandKey (state, 0, password)
+ *      state := ExpandKey (state, 0, salt)
+ * 4. ctext := "OrpheanBeholderScryDoubt"
+ * 5. REPEAT 64:
+ *      ctext := Encrypt_ECB (state, ctext);
+ * 6. RETURN Concatenate (salt, ctext);
+ *
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <sys/types.h>
+#include <string.h>
+#include <pwd.h>
+#include <blf.h>
+
+/* This implementation is adaptable to current computing power.
+ * You can have up to 2^31 rounds which should be enough for some
+ * time to come.
+ */
+
+#define BCRYPT_VERSION '2'
+#define BCRYPT_MAXSALT 16       /* Precomputation is just so nice */
+#define BCRYPT_BLOCKS 6         /* Ciphertext blocks */
+#define BCRYPT_MINLOGROUNDS 4   /* we have log2(rounds) in salt */
+
+#define BCRYPT_SALTSPACE        (7 + (BCRYPT_MAXSALT * 4 + 2) / 3 + 1)
+
+char   *bcrypt_gensalt(u_int8_t);
+
+static int encode_base64(char *, const u_int8_t *, size_t);
+static int decode_base64(u_int8_t *, size_t, const char *);
+
+/*
+ * Generates a salt for this version of crypt.
+ */
+static int
+bcrypt_initsalt(int log_rounds, uint8_t *salt, size_t saltbuflen)
+{
+        uint8_t csalt[BCRYPT_MAXSALT];
+
+        if (saltbuflen < BCRYPT_SALTSPACE)
+                return -1;
+
+        arc4random_buf(csalt, sizeof(csalt));
+
+        if (log_rounds < 4)
+                log_rounds = 4;
+        else if (log_rounds > 31)
+                log_rounds = 31;
+
+        snprintf(salt, saltbuflen, "$2a$%2.2u$", log_rounds);
+        encode_base64(salt + 7, csalt, sizeof(csalt));
+
+        return 0;
+}
+
+/*
+ * the core bcrypt function
+ */
+static int
+bcrypt_hashpass(const char *key, const char *salt, char *encrypted,
+    size_t encryptedlen)
+{
+        blf_ctx state;
+        u_int32_t rounds, i, k;
+        u_int16_t j;
+        size_t key_len;
+        u_int8_t salt_len, logr, minor;
+        u_int8_t ciphertext[4 * BCRYPT_BLOCKS] = "OrpheanBeholderScryDoubt";
+        u_int8_t csalt[BCRYPT_MAXSALT];
+        u_int32_t cdata[BCRYPT_BLOCKS];
+        char arounds[3];
+
+        /* Discard "$" identifier */
+        salt++;
+
+        if (*salt > BCRYPT_VERSION) {
+                return -1;
+        }
+
+        /* Check for minor versions */
+        if (salt[1] != '$') {
+                 switch (salt[1]) {
+                 case 'a':      /* 'ab' should not yield the same as 'abab' */
+                 case 'b':      /* cap input length at 72 bytes */
+                         minor = salt[1];
+                         salt++;
+                         break;
+                 default:
+                         return -1;
+                 }
+        } else
+                 minor = 0;
+
+        /* Discard version + "$" identifier */
+        salt += 2;
+
+        if (salt[2] != '$')
+                /* Out of sync with passwd entry */
+                return -1;
+
+        memcpy(arounds, salt, sizeof(arounds));
+        if (arounds[sizeof(arounds) - 1] != '$')
+                return -1;
+        arounds[sizeof(arounds) - 1] = 0;
+        logr = strtonum(arounds, BCRYPT_MINLOGROUNDS, 31, NULL);
+        if (logr == 0)
+                return -1;
+        /* Computer power doesn't increase linearly, 2^x should be fine */
+        rounds = 1U << logr;
+
+        /* Discard num rounds + "$" identifier */
+        salt += 3;
+
+        if (strlen(salt) * 3 / 4 < BCRYPT_MAXSALT)
+                return -1;
+
+        /* We dont want the base64 salt but the raw data */
+        decode_base64(csalt, BCRYPT_MAXSALT, salt);
+        salt_len = BCRYPT_MAXSALT;
+        if (minor <= 'a')
+                key_len = (u_int8_t)(strlen(key) + (minor >= 'a' ? 1 : 0));
+        else {
+                /* strlen() returns a size_t, but the function calls
+                 * below result in implicit casts to a narrower integer
+                 * type, so cap key_len at the actual maximum supported
+                 * length here to avoid integer wraparound */
+                key_len = strlen(key);
+                if (key_len > 72)
+                        key_len = 72;
+                key_len++; /* include the NUL */
+        }
+
+        /* Setting up S-Boxes and Subkeys */
+        Blowfish_initstate(&state);
+        Blowfish_expandstate(&state, csalt, salt_len,
+            (u_int8_t *) key, key_len);
+        for (k = 0; k < rounds; k++) {
+                Blowfish_expand0state(&state, (u_int8_t *) key, key_len);
+                Blowfish_expand0state(&state, csalt, salt_len);
+        }
+
+        /* This can be precomputed later */
+        j = 0;
+        for (i = 0; i < BCRYPT_BLOCKS; i++)
+                cdata[i] = Blowfish_stream2word(ciphertext, 4 * BCRYPT_BLOCKS, &j);
+
+        /* Now do the encryption */
+        for (k = 0; k < 64; k++)
+                blf_enc(&state, cdata, BCRYPT_BLOCKS / 2);
+
+        for (i = 0; i < BCRYPT_BLOCKS; i++) {
+                ciphertext[4 * i + 3] = cdata[i] & 0xff;
+                cdata[i] = cdata[i] >> 8;
+                ciphertext[4 * i + 2] = cdata[i] & 0xff;
+                cdata[i] = cdata[i] >> 8;
+                ciphertext[4 * i + 1] = cdata[i] & 0xff;
+                cdata[i] = cdata[i] >> 8;
+                ciphertext[4 * i + 0] = cdata[i] & 0xff;
+        }
+
+
+        i = 0;
+        encrypted[i++] = '$';
+        encrypted[i++] = BCRYPT_VERSION;
+        if (minor)
+                encrypted[i++] = minor;
+        encrypted[i++] = '$';
+
+        snprintf(encrypted + i, 4, "%2.2u$", logr);
+
+        encode_base64(encrypted + i + 3, csalt, BCRYPT_MAXSALT);
+        encode_base64(encrypted + strlen(encrypted), ciphertext,
+            4 * BCRYPT_BLOCKS - 1);
+        memset(&state, 0, sizeof(state));
+        memset(ciphertext, 0, sizeof(ciphertext));
+        memset(csalt, 0, sizeof(csalt));
+        memset(cdata, 0, sizeof(cdata));
+        return 0;
+}
+
+/*
+ * user friendly functions
+ */
+int
+bcrypt_newhash(const char *pass, int log_rounds, char *hash, size_t hashlen)
+{
+        char salt[BCRYPT_SALTSPACE];
+
+        if (bcrypt_initsalt(log_rounds, salt, sizeof(salt)) != 0)
+                return -1;
+
+        if (bcrypt_hashpass(pass, salt, hash, hashlen) != 0)
+                return -1;
+
+        explicit_bzero(salt, sizeof(salt));
+        return 0;
+}
+
+int
+bcrypt_checkpass(const char *pass, const char *goodhash)
+{
+        char hash[_PASSWORD_LEN];
+
+        if (bcrypt_hashpass(pass, goodhash, hash, sizeof(hash)) != 0)
+                return -1;
+        if (strlen(hash) != strlen(goodhash) ||
+            timingsafe_bcmp(hash, goodhash, strlen(goodhash)) != 0)
+                return -1;
+
+        explicit_bzero(hash, sizeof(hash));
+        return 0;
+}
+
+/*
+ * internal utilities
+ */
+const static u_int8_t Base64Code[] =
+"./ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789";
+
+const static u_int8_t index_64[128] = {
+        255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
+        255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
+        255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
+        255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
+        255, 255, 255, 255, 255, 255, 0, 1, 54, 55,
+        56, 57, 58, 59, 60, 61, 62, 63, 255, 255,
+        255, 255, 255, 255, 255, 2, 3, 4, 5, 6,
+        7, 8, 9, 10, 11, 12, 13, 14, 15, 16,
+        17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27,
+        255, 255, 255, 255, 255, 255, 28, 29, 30,
+        31, 32, 33, 34, 35, 36, 37, 38, 39, 40,
+        41, 42, 43, 44, 45, 46, 47, 48, 49, 50,
+        51, 52, 53, 255, 255, 255, 255, 255
+};
+#define CHAR64(c)  ( (c) > 127 ? 255 : index_64[(c)])
+
+/*
+ * read buflen (after decoding) bytes of data from b64data
+ */
+static int
+decode_base64(u_int8_t *buffer, size_t len, const char *b64data)
+{
+        u_int8_t *bp = buffer;
+        const u_int8_t *p = b64data;
+        u_int8_t c1, c2, c3, c4;
+
+        while (bp < buffer + len) {
+                c1 = CHAR64(*p);
+                c2 = CHAR64(*(p + 1));
+
+                /* Invalid data */
+                if (c1 == 255 || c2 == 255)
+                        return -1;
+
+                *bp++ = (c1 << 2) | ((c2 & 0x30) >> 4);
+                if (bp >= buffer + len)
+                        break;
+
+                c3 = CHAR64(*(p + 2));
+                if (c3 == 255)
+                        break;
+
+                *bp++ = ((c2 & 0x0f) << 4) | ((c3 & 0x3c) >> 2);
+                if (bp >= buffer + len)
+                        break;
+
+                c4 = CHAR64(*(p + 3));
+                if (c4 == 255)
+                        break;
+                *bp++ = ((c3 & 0x03) << 6) | c4;
+
+                p += 4;
+        }
+        return 0;
+}
+
+/*
+ * Turn len bytes of data into base64 encoded data.
+ * This works without = padding.
+ */
+static int
+encode_base64(char *b64buffer, const u_int8_t *data, size_t len)
+{
+        u_int8_t *bp = b64buffer;
+        const u_int8_t *p = data;
+        u_int8_t c1, c2;
+
+        while (p < data + len) {
+                c1 = *p++;
+                *bp++ = Base64Code[(c1 >> 2)];
+                c1 = (c1 & 0x03) << 4;
+                if (p >= data + len) {
+                        *bp++ = Base64Code[c1];
+                        break;
+                }
+                c2 = *p++;
+                c1 |= (c2 >> 4) & 0x0f;
+                *bp++ = Base64Code[c1];
+                c1 = (c2 & 0x0f) << 2;
+                if (p >= data + len) {
+                        *bp++ = Base64Code[c1];
+                        break;
+                }
+                c2 = *p++;
+                c1 |= (c2 >> 6) & 0x03;
+                *bp++ = Base64Code[c1];
+                *bp++ = Base64Code[c2 & 0x3f];
+        }
+        *bp = '\0';
+        return 0;
+}
+
+/*
+ * classic interface
+ */
+char *
+bcrypt_gensalt(u_int8_t log_rounds)
+{
+        static char    gsalt[BCRYPT_SALTSPACE];
+
+        bcrypt_initsalt(log_rounds, gsalt, sizeof(gsalt));
+
+        return gsalt;
+}
+
+char *
+bcrypt(const char *pass, const char *salt)
+{
+        static char    gencrypted[_PASSWORD_LEN];
+        static char    gerror[2];
+
+        /* How do I handle errors ? Return ':' */
+        strlcpy(gerror, ":", sizeof(gerror));
+        if (bcrypt_hashpass(pass, salt, gencrypted, sizeof(gencrypted)) != 0)
+                return gerror;
+
+        return gencrypted;
+}
+
diff --git a/src/lib/libc/crypt/blowfish.3 b/src/lib/libc/crypt/blowfish.3
new file mode 100644
index 0000000000..d15bc8901d
--- /dev/null
+++ b/src/lib/libc/crypt/blowfish.3
@@ -0,0 +1,106 @@
+.\" $OpenBSD: blowfish.3,v 1.22 2013/07/16 15:21:11 schwarze Exp $
+.\"
+.\" Copyright 1997 Niels Provos <provos@physnet.uni-hamburg.de>
+.\" All rights reserved.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\" 3. All advertising materials mentioning features or use of this software
+.\"    must display the following acknowledgement:
+.\"      This product includes software developed by Niels Provos.
+.\" 4. The name of the author may not be used to endorse or promote products
+.\"    derived from this software without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+.\" IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+.\" OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+.\" IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+.\" INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+.\" NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+.\" DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+.\" THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+.\" (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+.\" THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+.\"
+.\" Manual page, using -mandoc macros
+.\"
+.Dd $Mdocdate: July 16 2013 $
+.Dt BLOWFISH 3
+.Os
+.Sh NAME
+.Nm blf_key ,
+.Nm blf_enc ,
+.Nm blf_dec ,
+.Nm blf_ecb_encrypt ,
+.Nm blf_ecb_decrypt ,
+.Nm blf_cbc_encrypt ,
+.Nm blf_cbc_decrypt
+.Nd Blowfish encryption
+.Sh SYNOPSIS
+.In blf.h
+.Ft void
+.Fn blf_key "blf_ctx *state" "const u_int8_t *key" "u_int16_t keylen"
+.Ft void
+.Fn blf_enc "blf_ctx *state" "u_int32_t *data" "u_int16_t blocks"
+.Ft void
+.Fn blf_dec "blf_ctx *state" "u_int32_t *data" "u_int16_t blocks"
+.Ft void
+.Fn blf_ecb_encrypt "blf_ctx *state" "u_int8_t *data" "u_int32_t datalen"
+.Ft void
+.Fn blf_ecb_decrypt "blf_ctx *state" "u_int8_t *data" "u_int32_t datalen"
+.Ft void
+.Fn blf_cbc_encrypt "blf_ctx *state" "u_int8_t *iv" "u_int8_t *data" "u_int32_t datalen"
+.Ft void
+.Fn blf_cbc_decrypt "blf_ctx *state" "u_int8_t *iv" "u_int8_t *data" "u_int32_t datalen"
+.Sh DESCRIPTION
+.Em Blowfish
+is a fast unpatented block cipher designed by Bruce Schneier.
+It basically consists of a 16-round Feistel network.
+The block size is 64 bits and the maximum key size is 448 bits.
+.Pp
+The
+.Fn blf_key
+function initializes the 4 8-bit S-boxes and the 18 Subkeys with
+the hexadecimal digits of Pi.
+The key is used for further randomization.
+The first argument to
+.Fn blf_enc
+is the initialized state derived from
+.Fn blf_key .
+The stream of 32-bit words is encrypted in Electronic Codebook
+Mode (ECB) and
+.Fa blocks
+is the number of 64-bit blocks in the stream.
+.Fn blf_dec
+is used for decrypting Blowfish encrypted blocks.
+.Pp
+The functions
+.Fn blf_ecb_encrypt
+and
+.Fn blf_ecb_decrypt
+are used for encrypting and decrypting octet streams in ECB mode.
+The functions
+.Fn blf_cbc_encrypt
+and
+.Fn blf_cbc_decrypt
+are used for encrypting and decrypting octet streams in
+Cipherblock Chaining Mode (CBC).
+For these functions
+.Fa datalen
+specifies the number of octets of data to encrypt or decrypt.
+It must be a multiple of 8 (64-bit block).
+The initialisation vector
+.Fa iv
+points to an 8-byte buffer.
+.Sh SEE ALSO
+.Xr passwd 1 ,
+.Xr crypt 3 ,
+.Xr passwd 5
+.Sh AUTHORS
+.An Niels Provos Aq Mt provos@physnet.uni-hamburg.de
diff --git a/src/lib/libc/crypt/blowfish.c b/src/lib/libc/crypt/blowfish.c
new file mode 100644
index 0000000000..c337df8a0a
--- /dev/null
+++ b/src/lib/libc/crypt/blowfish.c
@@ -0,0 +1,685 @@
+/* $OpenBSD: blowfish.c,v 1.18 2004/11/02 17:23:26 hshoexer Exp $ */
+/*
+ * Blowfish block cipher for OpenBSD
+ * Copyright 1997 Niels Provos <provos@physnet.uni-hamburg.de>
+ * All rights reserved.
+ *
+ * Implementation advice by David Mazieres <dm@lcs.mit.edu>.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *      This product includes software developed by Niels Provos.
+ * 4. The name of the author may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+/*
+ * This code is derived from section 14.3 and the given source
+ * in section V of Applied Cryptography, second edition.
+ * Blowfish is an unpatented fast block cipher designed by
+ * Bruce Schneier.
+ */
+
+#if 0
+#include <stdio.h>              /* used for debugging */
+#include <string.h>
+#endif
+
+#include <sys/types.h>
+#include <blf.h>
+
+#undef inline
+#ifdef __GNUC__
+#define inline __inline
+#else                           /* !__GNUC__ */
+#define inline
+#endif                          /* !__GNUC__ */
+
+/* Function for Feistel Networks */
+
+#define F(s, x) ((((s)[        (((x)>>24)&0xFF)]  \
+                 + (s)[0x100 + (((x)>>16)&0xFF)]) \
+                 ^ (s)[0x200 + (((x)>> 8)&0xFF)]) \
+                 + (s)[0x300 + ( (x)     &0xFF)])
+
+#define BLFRND(s,p,i,j,n) (i ^= F(s,j) ^ (p)[n])
+
+void
+Blowfish_encipher(blf_ctx *c, u_int32_t *xl, u_int32_t *xr)
+{
+        u_int32_t Xl;
+        u_int32_t Xr;
+        u_int32_t *s = c->S[0];
+        u_int32_t *p = c->P;
+
+        Xl = *xl;
+        Xr = *xr;
+
+        Xl ^= p[0];
+        BLFRND(s, p, Xr, Xl, 1); BLFRND(s, p, Xl, Xr, 2);
+        BLFRND(s, p, Xr, Xl, 3); BLFRND(s, p, Xl, Xr, 4);
+        BLFRND(s, p, Xr, Xl, 5); BLFRND(s, p, Xl, Xr, 6);
+        BLFRND(s, p, Xr, Xl, 7); BLFRND(s, p, Xl, Xr, 8);
+        BLFRND(s, p, Xr, Xl, 9); BLFRND(s, p, Xl, Xr, 10);
+        BLFRND(s, p, Xr, Xl, 11); BLFRND(s, p, Xl, Xr, 12);
+        BLFRND(s, p, Xr, Xl, 13); BLFRND(s, p, Xl, Xr, 14);
+        BLFRND(s, p, Xr, Xl, 15); BLFRND(s, p, Xl, Xr, 16);
+
+        *xl = Xr ^ p[17];
+        *xr = Xl;
+}
+
+void
+Blowfish_decipher(blf_ctx *c, u_int32_t *xl, u_int32_t *xr)
+{
+        u_int32_t Xl;
+        u_int32_t Xr;
+        u_int32_t *s = c->S[0];
+        u_int32_t *p = c->P;
+
+        Xl = *xl;
+        Xr = *xr;
+
+        Xl ^= p[17];
+        BLFRND(s, p, Xr, Xl, 16); BLFRND(s, p, Xl, Xr, 15);
+        BLFRND(s, p, Xr, Xl, 14); BLFRND(s, p, Xl, Xr, 13);
+        BLFRND(s, p, Xr, Xl, 12); BLFRND(s, p, Xl, Xr, 11);
+        BLFRND(s, p, Xr, Xl, 10); BLFRND(s, p, Xl, Xr, 9);
+        BLFRND(s, p, Xr, Xl, 8); BLFRND(s, p, Xl, Xr, 7);
+        BLFRND(s, p, Xr, Xl, 6); BLFRND(s, p, Xl, Xr, 5);
+        BLFRND(s, p, Xr, Xl, 4); BLFRND(s, p, Xl, Xr, 3);
+        BLFRND(s, p, Xr, Xl, 2); BLFRND(s, p, Xl, Xr, 1);
+
+        *xl = Xr ^ p[0];
+        *xr = Xl;
+}
+
+void
+Blowfish_initstate(blf_ctx *c)
+{
+        /* P-box and S-box tables initialized with digits of Pi */
+
+        static const blf_ctx initstate =
+        { {
+                {
+                        0xd1310ba6, 0x98dfb5ac, 0x2ffd72db, 0xd01adfb7,
+                        0xb8e1afed, 0x6a267e96, 0xba7c9045, 0xf12c7f99,
+                        0x24a19947, 0xb3916cf7, 0x0801f2e2, 0x858efc16,
+                        0x636920d8, 0x71574e69, 0xa458fea3, 0xf4933d7e,
+                        0x0d95748f, 0x728eb658, 0x718bcd58, 0x82154aee,
+                        0x7b54a41d, 0xc25a59b5, 0x9c30d539, 0x2af26013,
+                        0xc5d1b023, 0x286085f0, 0xca417918, 0xb8db38ef,
+                        0x8e79dcb0, 0x603a180e, 0x6c9e0e8b, 0xb01e8a3e,
+                        0xd71577c1, 0xbd314b27, 0x78af2fda, 0x55605c60,
+                        0xe65525f3, 0xaa55ab94, 0x57489862, 0x63e81440,
+                        0x55ca396a, 0x2aab10b6, 0xb4cc5c34, 0x1141e8ce,
+                        0xa15486af, 0x7c72e993, 0xb3ee1411, 0x636fbc2a,
+                        0x2ba9c55d, 0x741831f6, 0xce5c3e16, 0x9b87931e,
+                        0xafd6ba33, 0x6c24cf5c, 0x7a325381, 0x28958677,
+                        0x3b8f4898, 0x6b4bb9af, 0xc4bfe81b, 0x66282193,
+                        0x61d809cc, 0xfb21a991, 0x487cac60, 0x5dec8032,
+                        0xef845d5d, 0xe98575b1, 0xdc262302, 0xeb651b88,
+                        0x23893e81, 0xd396acc5, 0x0f6d6ff3, 0x83f44239,
+                        0x2e0b4482, 0xa4842004, 0x69c8f04a, 0x9e1f9b5e,
+                        0x21c66842, 0xf6e96c9a, 0x670c9c61, 0xabd388f0,
+                        0x6a51a0d2, 0xd8542f68, 0x960fa728, 0xab5133a3,
+                        0x6eef0b6c, 0x137a3be4, 0xba3bf050, 0x7efb2a98,
+                        0xa1f1651d, 0x39af0176, 0x66ca593e, 0x82430e88,
+                        0x8cee8619, 0x456f9fb4, 0x7d84a5c3, 0x3b8b5ebe,
+                        0xe06f75d8, 0x85c12073, 0x401a449f, 0x56c16aa6,
+                        0x4ed3aa62, 0x363f7706, 0x1bfedf72, 0x429b023d,
+                        0x37d0d724, 0xd00a1248, 0xdb0fead3, 0x49f1c09b,
+                        0x075372c9, 0x80991b7b, 0x25d479d8, 0xf6e8def7,
+                        0xe3fe501a, 0xb6794c3b, 0x976ce0bd, 0x04c006ba,
+                        0xc1a94fb6, 0x409f60c4, 0x5e5c9ec2, 0x196a2463,
+                        0x68fb6faf, 0x3e6c53b5, 0x1339b2eb, 0x3b52ec6f,
+                        0x6dfc511f, 0x9b30952c, 0xcc814544, 0xaf5ebd09,
+                        0xbee3d004, 0xde334afd, 0x660f2807, 0x192e4bb3,
+                        0xc0cba857, 0x45c8740f, 0xd20b5f39, 0xb9d3fbdb,
+                        0x5579c0bd, 0x1a60320a, 0xd6a100c6, 0x402c7279,
+                        0x679f25fe, 0xfb1fa3cc, 0x8ea5e9f8, 0xdb3222f8,
+                        0x3c7516df, 0xfd616b15, 0x2f501ec8, 0xad0552ab,
+                        0x323db5fa, 0xfd238760, 0x53317b48, 0x3e00df82,
+                        0x9e5c57bb, 0xca6f8ca0, 0x1a87562e, 0xdf1769db,
+                        0xd542a8f6, 0x287effc3, 0xac6732c6, 0x8c4f5573,
+                        0x695b27b0, 0xbbca58c8, 0xe1ffa35d, 0xb8f011a0,
+                        0x10fa3d98, 0xfd2183b8, 0x4afcb56c, 0x2dd1d35b,
+                        0x9a53e479, 0xb6f84565, 0xd28e49bc, 0x4bfb9790,
+                        0xe1ddf2da, 0xa4cb7e33, 0x62fb1341, 0xcee4c6e8,
+                        0xef20cada, 0x36774c01, 0xd07e9efe, 0x2bf11fb4,
+                        0x95dbda4d, 0xae909198, 0xeaad8e71, 0x6b93d5a0,
+                        0xd08ed1d0, 0xafc725e0, 0x8e3c5b2f, 0x8e7594b7,
+                        0x8ff6e2fb, 0xf2122b64, 0x8888b812, 0x900df01c,
+                        0x4fad5ea0, 0x688fc31c, 0xd1cff191, 0xb3a8c1ad,
+                        0x2f2f2218, 0xbe0e1777, 0xea752dfe, 0x8b021fa1,
+                        0xe5a0cc0f, 0xb56f74e8, 0x18acf3d6, 0xce89e299,
+                        0xb4a84fe0, 0xfd13e0b7, 0x7cc43b81, 0xd2ada8d9,
+                        0x165fa266, 0x80957705, 0x93cc7314, 0x211a1477,
+                        0xe6ad2065, 0x77b5fa86, 0xc75442f5, 0xfb9d35cf,
+                        0xebcdaf0c, 0x7b3e89a0, 0xd6411bd3, 0xae1e7e49,
+                        0x00250e2d, 0x2071b35e, 0x226800bb, 0x57b8e0af,
+                        0x2464369b, 0xf009b91e, 0x5563911d, 0x59dfa6aa,
+                        0x78c14389, 0xd95a537f, 0x207d5ba2, 0x02e5b9c5,
+                        0x83260376, 0x6295cfa9, 0x11c81968, 0x4e734a41,
+                        0xb3472dca, 0x7b14a94a, 0x1b510052, 0x9a532915,
+                        0xd60f573f, 0xbc9bc6e4, 0x2b60a476, 0x81e67400,
+                        0x08ba6fb5, 0x571be91f, 0xf296ec6b, 0x2a0dd915,
+                        0xb6636521, 0xe7b9f9b6, 0xff34052e, 0xc5855664,
+                0x53b02d5d, 0xa99f8fa1, 0x08ba4799, 0x6e85076a},
+                {
+                        0x4b7a70e9, 0xb5b32944, 0xdb75092e, 0xc4192623,
+                        0xad6ea6b0, 0x49a7df7d, 0x9cee60b8, 0x8fedb266,
+                        0xecaa8c71, 0x699a17ff, 0x5664526c, 0xc2b19ee1,
+                        0x193602a5, 0x75094c29, 0xa0591340, 0xe4183a3e,
+                        0x3f54989a, 0x5b429d65, 0x6b8fe4d6, 0x99f73fd6,
+                        0xa1d29c07, 0xefe830f5, 0x4d2d38e6, 0xf0255dc1,
+                        0x4cdd2086, 0x8470eb26, 0x6382e9c6, 0x021ecc5e,
+                        0x09686b3f, 0x3ebaefc9, 0x3c971814, 0x6b6a70a1,
+                        0x687f3584, 0x52a0e286, 0xb79c5305, 0xaa500737,
+                        0x3e07841c, 0x7fdeae5c, 0x8e7d44ec, 0x5716f2b8,
+                        0xb03ada37, 0xf0500c0d, 0xf01c1f04, 0x0200b3ff,
+                        0xae0cf51a, 0x3cb574b2, 0x25837a58, 0xdc0921bd,
+                        0xd19113f9, 0x7ca92ff6, 0x94324773, 0x22f54701,
+                        0x3ae5e581, 0x37c2dadc, 0xc8b57634, 0x9af3dda7,
+                        0xa9446146, 0x0fd0030e, 0xecc8c73e, 0xa4751e41,
+                        0xe238cd99, 0x3bea0e2f, 0x3280bba1, 0x183eb331,
+                        0x4e548b38, 0x4f6db908, 0x6f420d03, 0xf60a04bf,
+                        0x2cb81290, 0x24977c79, 0x5679b072, 0xbcaf89af,
+                        0xde9a771f, 0xd9930810, 0xb38bae12, 0xdccf3f2e,
+                        0x5512721f, 0x2e6b7124, 0x501adde6, 0x9f84cd87,
+                        0x7a584718, 0x7408da17, 0xbc9f9abc, 0xe94b7d8c,
+                        0xec7aec3a, 0xdb851dfa, 0x63094366, 0xc464c3d2,
+                        0xef1c1847, 0x3215d908, 0xdd433b37, 0x24c2ba16,
+                        0x12a14d43, 0x2a65c451, 0x50940002, 0x133ae4dd,
+                        0x71dff89e, 0x10314e55, 0x81ac77d6, 0x5f11199b,
+                        0x043556f1, 0xd7a3c76b, 0x3c11183b, 0x5924a509,
+                        0xf28fe6ed, 0x97f1fbfa, 0x9ebabf2c, 0x1e153c6e,
+                        0x86e34570, 0xeae96fb1, 0x860e5e0a, 0x5a3e2ab3,
+                        0x771fe71c, 0x4e3d06fa, 0x2965dcb9, 0x99e71d0f,
+                        0x803e89d6, 0x5266c825, 0x2e4cc978, 0x9c10b36a,
+                        0xc6150eba, 0x94e2ea78, 0xa5fc3c53, 0x1e0a2df4,
+                        0xf2f74ea7, 0x361d2b3d, 0x1939260f, 0x19c27960,
+                        0x5223a708, 0xf71312b6, 0xebadfe6e, 0xeac31f66,
+                        0xe3bc4595, 0xa67bc883, 0xb17f37d1, 0x018cff28,
+                        0xc332ddef, 0xbe6c5aa5, 0x65582185, 0x68ab9802,
+                        0xeecea50f, 0xdb2f953b, 0x2aef7dad, 0x5b6e2f84,
+                        0x1521b628, 0x29076170, 0xecdd4775, 0x619f1510,
+                        0x13cca830, 0xeb61bd96, 0x0334fe1e, 0xaa0363cf,
+                        0xb5735c90, 0x4c70a239, 0xd59e9e0b, 0xcbaade14,
+                        0xeecc86bc, 0x60622ca7, 0x9cab5cab, 0xb2f3846e,
+                        0x648b1eaf, 0x19bdf0ca, 0xa02369b9, 0x655abb50,
+                        0x40685a32, 0x3c2ab4b3, 0x319ee9d5, 0xc021b8f7,
+                        0x9b540b19, 0x875fa099, 0x95f7997e, 0x623d7da8,
+                        0xf837889a, 0x97e32d77, 0x11ed935f, 0x16681281,
+                        0x0e358829, 0xc7e61fd6, 0x96dedfa1, 0x7858ba99,
+                        0x57f584a5, 0x1b227263, 0x9b83c3ff, 0x1ac24696,
+                        0xcdb30aeb, 0x532e3054, 0x8fd948e4, 0x6dbc3128,
+                        0x58ebf2ef, 0x34c6ffea, 0xfe28ed61, 0xee7c3c73,
+                        0x5d4a14d9, 0xe864b7e3, 0x42105d14, 0x203e13e0,
+                        0x45eee2b6, 0xa3aaabea, 0xdb6c4f15, 0xfacb4fd0,
+                        0xc742f442, 0xef6abbb5, 0x654f3b1d, 0x41cd2105,
+                        0xd81e799e, 0x86854dc7, 0xe44b476a, 0x3d816250,
+                        0xcf62a1f2, 0x5b8d2646, 0xfc8883a0, 0xc1c7b6a3,
+                        0x7f1524c3, 0x69cb7492, 0x47848a0b, 0x5692b285,
+                        0x095bbf00, 0xad19489d, 0x1462b174, 0x23820e00,
+                        0x58428d2a, 0x0c55f5ea, 0x1dadf43e, 0x233f7061,
+                        0x3372f092, 0x8d937e41, 0xd65fecf1, 0x6c223bdb,
+                        0x7cde3759, 0xcbee7460, 0x4085f2a7, 0xce77326e,
+                        0xa6078084, 0x19f8509e, 0xe8efd855, 0x61d99735,
+                        0xa969a7aa, 0xc50c06c2, 0x5a04abfc, 0x800bcadc,
+                        0x9e447a2e, 0xc3453484, 0xfdd56705, 0x0e1e9ec9,
+                        0xdb73dbd3, 0x105588cd, 0x675fda79, 0xe3674340,
+                        0xc5c43465, 0x713e38d8, 0x3d28f89e, 0xf16dff20,
+                0x153e21e7, 0x8fb03d4a, 0xe6e39f2b, 0xdb83adf7},
+                {
+                        0xe93d5a68, 0x948140f7, 0xf64c261c, 0x94692934,
+                        0x411520f7, 0x7602d4f7, 0xbcf46b2e, 0xd4a20068,
+                        0xd4082471, 0x3320f46a, 0x43b7d4b7, 0x500061af,
+                        0x1e39f62e, 0x97244546, 0x14214f74, 0xbf8b8840,
+                        0x4d95fc1d, 0x96b591af, 0x70f4ddd3, 0x66a02f45,
+                        0xbfbc09ec, 0x03bd9785, 0x7fac6dd0, 0x31cb8504,
+                        0x96eb27b3, 0x55fd3941, 0xda2547e6, 0xabca0a9a,
+                        0x28507825, 0x530429f4, 0x0a2c86da, 0xe9b66dfb,
+                        0x68dc1462, 0xd7486900, 0x680ec0a4, 0x27a18dee,
+                        0x4f3ffea2, 0xe887ad8c, 0xb58ce006, 0x7af4d6b6,
+                        0xaace1e7c, 0xd3375fec, 0xce78a399, 0x406b2a42,
+                        0x20fe9e35, 0xd9f385b9, 0xee39d7ab, 0x3b124e8b,
+                        0x1dc9faf7, 0x4b6d1856, 0x26a36631, 0xeae397b2,
+                        0x3a6efa74, 0xdd5b4332, 0x6841e7f7, 0xca7820fb,
+                        0xfb0af54e, 0xd8feb397, 0x454056ac, 0xba489527,
+                        0x55533a3a, 0x20838d87, 0xfe6ba9b7, 0xd096954b,
+                        0x55a867bc, 0xa1159a58, 0xcca92963, 0x99e1db33,
+                        0xa62a4a56, 0x3f3125f9, 0x5ef47e1c, 0x9029317c,
+                        0xfdf8e802, 0x04272f70, 0x80bb155c, 0x05282ce3,
+                        0x95c11548, 0xe4c66d22, 0x48c1133f, 0xc70f86dc,
+                        0x07f9c9ee, 0x41041f0f, 0x404779a4, 0x5d886e17,
+                        0x325f51eb, 0xd59bc0d1, 0xf2bcc18f, 0x41113564,
+                        0x257b7834, 0x602a9c60, 0xdff8e8a3, 0x1f636c1b,
+                        0x0e12b4c2, 0x02e1329e, 0xaf664fd1, 0xcad18115,
+                        0x6b2395e0, 0x333e92e1, 0x3b240b62, 0xeebeb922,
+                        0x85b2a20e, 0xe6ba0d99, 0xde720c8c, 0x2da2f728,
+                        0xd0127845, 0x95b794fd, 0x647d0862, 0xe7ccf5f0,
+                        0x5449a36f, 0x877d48fa, 0xc39dfd27, 0xf33e8d1e,
+                        0x0a476341, 0x992eff74, 0x3a6f6eab, 0xf4f8fd37,
+                        0xa812dc60, 0xa1ebddf8, 0x991be14c, 0xdb6e6b0d,
+                        0xc67b5510, 0x6d672c37, 0x2765d43b, 0xdcd0e804,
+                        0xf1290dc7, 0xcc00ffa3, 0xb5390f92, 0x690fed0b,
+                        0x667b9ffb, 0xcedb7d9c, 0xa091cf0b, 0xd9155ea3,
+                        0xbb132f88, 0x515bad24, 0x7b9479bf, 0x763bd6eb,
+                        0x37392eb3, 0xcc115979, 0x8026e297, 0xf42e312d,
+                        0x6842ada7, 0xc66a2b3b, 0x12754ccc, 0x782ef11c,
+                        0x6a124237, 0xb79251e7, 0x06a1bbe6, 0x4bfb6350,
+                        0x1a6b1018, 0x11caedfa, 0x3d25bdd8, 0xe2e1c3c9,
+                        0x44421659, 0x0a121386, 0xd90cec6e, 0xd5abea2a,
+                        0x64af674e, 0xda86a85f, 0xbebfe988, 0x64e4c3fe,
+                        0x9dbc8057, 0xf0f7c086, 0x60787bf8, 0x6003604d,
+                        0xd1fd8346, 0xf6381fb0, 0x7745ae04, 0xd736fccc,
+                        0x83426b33, 0xf01eab71, 0xb0804187, 0x3c005e5f,
+                        0x77a057be, 0xbde8ae24, 0x55464299, 0xbf582e61,
+                        0x4e58f48f, 0xf2ddfda2, 0xf474ef38, 0x8789bdc2,
+                        0x5366f9c3, 0xc8b38e74, 0xb475f255, 0x46fcd9b9,
+                        0x7aeb2661, 0x8b1ddf84, 0x846a0e79, 0x915f95e2,
+                        0x466e598e, 0x20b45770, 0x8cd55591, 0xc902de4c,
+                        0xb90bace1, 0xbb8205d0, 0x11a86248, 0x7574a99e,
+                        0xb77f19b6, 0xe0a9dc09, 0x662d09a1, 0xc4324633,
+                        0xe85a1f02, 0x09f0be8c, 0x4a99a025, 0x1d6efe10,
+                        0x1ab93d1d, 0x0ba5a4df, 0xa186f20f, 0x2868f169,
+                        0xdcb7da83, 0x573906fe, 0xa1e2ce9b, 0x4fcd7f52,
+                        0x50115e01, 0xa70683fa, 0xa002b5c4, 0x0de6d027,
+                        0x9af88c27, 0x773f8641, 0xc3604c06, 0x61a806b5,
+                        0xf0177a28, 0xc0f586e0, 0x006058aa, 0x30dc7d62,
+                        0x11e69ed7, 0x2338ea63, 0x53c2dd94, 0xc2c21634,
+                        0xbbcbee56, 0x90bcb6de, 0xebfc7da1, 0xce591d76,
+                        0x6f05e409, 0x4b7c0188, 0x39720a3d, 0x7c927c24,
+                        0x86e3725f, 0x724d9db9, 0x1ac15bb4, 0xd39eb8fc,
+                        0xed545578, 0x08fca5b5, 0xd83d7cd3, 0x4dad0fc4,
+                        0x1e50ef5e, 0xb161e6f8, 0xa28514d9, 0x6c51133c,
+                        0x6fd5c7e7, 0x56e14ec4, 0x362abfce, 0xddc6c837,
+                0xd79a3234, 0x92638212, 0x670efa8e, 0x406000e0},
+                {
+                        0x3a39ce37, 0xd3faf5cf, 0xabc27737, 0x5ac52d1b,
+                        0x5cb0679e, 0x4fa33742, 0xd3822740, 0x99bc9bbe,
+                        0xd5118e9d, 0xbf0f7315, 0xd62d1c7e, 0xc700c47b,
+                        0xb78c1b6b, 0x21a19045, 0xb26eb1be, 0x6a366eb4,
+                        0x5748ab2f, 0xbc946e79, 0xc6a376d2, 0x6549c2c8,
+                        0x530ff8ee, 0x468dde7d, 0xd5730a1d, 0x4cd04dc6,
+                        0x2939bbdb, 0xa9ba4650, 0xac9526e8, 0xbe5ee304,
+                        0xa1fad5f0, 0x6a2d519a, 0x63ef8ce2, 0x9a86ee22,
+                        0xc089c2b8, 0x43242ef6, 0xa51e03aa, 0x9cf2d0a4,
+                        0x83c061ba, 0x9be96a4d, 0x8fe51550, 0xba645bd6,
+                        0x2826a2f9, 0xa73a3ae1, 0x4ba99586, 0xef5562e9,
+                        0xc72fefd3, 0xf752f7da, 0x3f046f69, 0x77fa0a59,
+                        0x80e4a915, 0x87b08601, 0x9b09e6ad, 0x3b3ee593,
+                        0xe990fd5a, 0x9e34d797, 0x2cf0b7d9, 0x022b8b51,
+                        0x96d5ac3a, 0x017da67d, 0xd1cf3ed6, 0x7c7d2d28,
+                        0x1f9f25cf, 0xadf2b89b, 0x5ad6b472, 0x5a88f54c,
+                        0xe029ac71, 0xe019a5e6, 0x47b0acfd, 0xed93fa9b,
+                        0xe8d3c48d, 0x283b57cc, 0xf8d56629, 0x79132e28,
+                        0x785f0191, 0xed756055, 0xf7960e44, 0xe3d35e8c,
+                        0x15056dd4, 0x88f46dba, 0x03a16125, 0x0564f0bd,
+                        0xc3eb9e15, 0x3c9057a2, 0x97271aec, 0xa93a072a,
+                        0x1b3f6d9b, 0x1e6321f5, 0xf59c66fb, 0x26dcf319,
+                        0x7533d928, 0xb155fdf5, 0x03563482, 0x8aba3cbb,
+                        0x28517711, 0xc20ad9f8, 0xabcc5167, 0xccad925f,
+                        0x4de81751, 0x3830dc8e, 0x379d5862, 0x9320f991,
+                        0xea7a90c2, 0xfb3e7bce, 0x5121ce64, 0x774fbe32,
+                        0xa8b6e37e, 0xc3293d46, 0x48de5369, 0x6413e680,
+                        0xa2ae0810, 0xdd6db224, 0x69852dfd, 0x09072166,
+                        0xb39a460a, 0x6445c0dd, 0x586cdecf, 0x1c20c8ae,
+                        0x5bbef7dd, 0x1b588d40, 0xccd2017f, 0x6bb4e3bb,
+                        0xdda26a7e, 0x3a59ff45, 0x3e350a44, 0xbcb4cdd5,
+                        0x72eacea8, 0xfa6484bb, 0x8d6612ae, 0xbf3c6f47,
+                        0xd29be463, 0x542f5d9e, 0xaec2771b, 0xf64e6370,
+                        0x740e0d8d, 0xe75b1357, 0xf8721671, 0xaf537d5d,
+                        0x4040cb08, 0x4eb4e2cc, 0x34d2466a, 0x0115af84,
+                        0xe1b00428, 0x95983a1d, 0x06b89fb4, 0xce6ea048,
+                        0x6f3f3b82, 0x3520ab82, 0x011a1d4b, 0x277227f8,
+                        0x611560b1, 0xe7933fdc, 0xbb3a792b, 0x344525bd,
+                        0xa08839e1, 0x51ce794b, 0x2f32c9b7, 0xa01fbac9,
+                        0xe01cc87e, 0xbcc7d1f6, 0xcf0111c3, 0xa1e8aac7,
+                        0x1a908749, 0xd44fbd9a, 0xd0dadecb, 0xd50ada38,
+                        0x0339c32a, 0xc6913667, 0x8df9317c, 0xe0b12b4f,
+                        0xf79e59b7, 0x43f5bb3a, 0xf2d519ff, 0x27d9459c,
+                        0xbf97222c, 0x15e6fc2a, 0x0f91fc71, 0x9b941525,
+                        0xfae59361, 0xceb69ceb, 0xc2a86459, 0x12baa8d1,
+                        0xb6c1075e, 0xe3056a0c, 0x10d25065, 0xcb03a442,
+                        0xe0ec6e0e, 0x1698db3b, 0x4c98a0be, 0x3278e964,
+                        0x9f1f9532, 0xe0d392df, 0xd3a0342b, 0x8971f21e,
+                        0x1b0a7441, 0x4ba3348c, 0xc5be7120, 0xc37632d8,
+                        0xdf359f8d, 0x9b992f2e, 0xe60b6f47, 0x0fe3f11d,
+                        0xe54cda54, 0x1edad891, 0xce6279cf, 0xcd3e7e6f,
+                        0x1618b166, 0xfd2c1d05, 0x848fd2c5, 0xf6fb2299,
+                        0xf523f357, 0xa6327623, 0x93a83531, 0x56cccd02,
+                        0xacf08162, 0x5a75ebb5, 0x6e163697, 0x88d273cc,
+                        0xde966292, 0x81b949d0, 0x4c50901b, 0x71c65614,
+                        0xe6c6c7bd, 0x327a140a, 0x45e1d006, 0xc3f27b9a,
+                        0xc9aa53fd, 0x62a80f00, 0xbb25bfe2, 0x35bdd2f6,
+                        0x71126905, 0xb2040222, 0xb6cbcf7c, 0xcd769c2b,
+                        0x53113ec0, 0x1640e3d3, 0x38abbd60, 0x2547adf0,
+                        0xba38209c, 0xf746ce76, 0x77afa1c5, 0x20756060,
+                        0x85cbfe4e, 0x8ae88dd8, 0x7aaaf9b0, 0x4cf9aa7e,
+                        0x1948c25c, 0x02fb8a8c, 0x01c36ae4, 0xd6ebe1f9,
+                        0x90d4f869, 0xa65cdea0, 0x3f09252d, 0xc208e69f,
+                0xb74e6132, 0xce77e25b, 0x578fdfe3, 0x3ac372e6}
+        },
+        {
+                0x243f6a88, 0x85a308d3, 0x13198a2e, 0x03707344,
+                0xa4093822, 0x299f31d0, 0x082efa98, 0xec4e6c89,
+                0x452821e6, 0x38d01377, 0xbe5466cf, 0x34e90c6c,
+                0xc0ac29b7, 0xc97c50dd, 0x3f84d5b5, 0xb5470917,
+                0x9216d5d9, 0x8979fb1b
+        } };
+
+        *c = initstate;
+}
+
+u_int32_t
+Blowfish_stream2word(const u_int8_t *data, u_int16_t databytes,
+    u_int16_t *current)
+{
+        u_int8_t i;
+        u_int16_t j;
+        u_int32_t temp;
+
+        temp = 0x00000000;
+        j = *current;
+
+        for (i = 0; i < 4; i++, j++) {
+                if (j >= databytes)
+                        j = 0;
+                temp = (temp << 8) | data[j];
+        }
+
+        *current = j;
+        return temp;
+}
+
+void
+Blowfish_expand0state(blf_ctx *c, const u_int8_t *key, u_int16_t keybytes)
+{
+        u_int16_t i;
+        u_int16_t j;
+        u_int16_t k;
+        u_int32_t temp;
+        u_int32_t datal;
+        u_int32_t datar;
+
+        j = 0;
+        for (i = 0; i < BLF_N + 2; i++) {
+                /* Extract 4 int8 to 1 int32 from keystream */
+                temp = Blowfish_stream2word(key, keybytes, &j);
+                c->P[i] = c->P[i] ^ temp;
+        }
+
+        j = 0;
+        datal = 0x00000000;
+        datar = 0x00000000;
+        for (i = 0; i < BLF_N + 2; i += 2) {
+                Blowfish_encipher(c, &datal, &datar);
+
+                c->P[i] = datal;
+                c->P[i + 1] = datar;
+        }
+
+        for (i = 0; i < 4; i++) {
+                for (k = 0; k < 256; k += 2) {
+                        Blowfish_encipher(c, &datal, &datar);
+
+                        c->S[i][k] = datal;
+                        c->S[i][k + 1] = datar;
+                }
+        }
+}
+
+
+void
+Blowfish_expandstate(blf_ctx *c, const u_int8_t *data, u_int16_t databytes,
+    const u_int8_t *key, u_int16_t keybytes)
+{
+        u_int16_t i;
+        u_int16_t j;
+        u_int16_t k;
+        u_int32_t temp;
+        u_int32_t datal;
+        u_int32_t datar;
+
+        j = 0;
+        for (i = 0; i < BLF_N + 2; i++) {
+                /* Extract 4 int8 to 1 int32 from keystream */
+                temp = Blowfish_stream2word(key, keybytes, &j);
+                c->P[i] = c->P[i] ^ temp;
+        }
+
+        j = 0;
+        datal = 0x00000000;
+        datar = 0x00000000;
+        for (i = 0; i < BLF_N + 2; i += 2) {
+                datal ^= Blowfish_stream2word(data, databytes, &j);
+                datar ^= Blowfish_stream2word(data, databytes, &j);
+                Blowfish_encipher(c, &datal, &datar);
+
+                c->P[i] = datal;
+                c->P[i + 1] = datar;
+        }
+
+        for (i = 0; i < 4; i++) {
+                for (k = 0; k < 256; k += 2) {
+                        datal ^= Blowfish_stream2word(data, databytes, &j);
+                        datar ^= Blowfish_stream2word(data, databytes, &j);
+                        Blowfish_encipher(c, &datal, &datar);
+
+                        c->S[i][k] = datal;
+                        c->S[i][k + 1] = datar;
+                }
+        }
+
+}
+
+void
+blf_key(blf_ctx *c, const u_int8_t *k, u_int16_t len)
+{
+        /* Initialize S-boxes and subkeys with Pi */
+        Blowfish_initstate(c);
+
+        /* Transform S-boxes and subkeys with key */
+        Blowfish_expand0state(c, k, len);
+}
+
+void
+blf_enc(blf_ctx *c, u_int32_t *data, u_int16_t blocks)
+{
+        u_int32_t *d;
+        u_int16_t i;
+
+        d = data;
+        for (i = 0; i < blocks; i++) {
+                Blowfish_encipher(c, d, d + 1);
+                d += 2;
+        }
+}
+
+void
+blf_dec(blf_ctx *c, u_int32_t *data, u_int16_t blocks)
+{
+        u_int32_t *d;
+        u_int16_t i;
+
+        d = data;
+        for (i = 0; i < blocks; i++) {
+                Blowfish_decipher(c, d, d + 1);
+                d += 2;
+        }
+}
+
+void
+blf_ecb_encrypt(blf_ctx *c, u_int8_t *data, u_int32_t len)
+{
+        u_int32_t l, r;
+        u_int32_t i;
+
+        for (i = 0; i < len; i += 8) {
+                l = data[0] << 24 | data[1] << 16 | data[2] << 8 | data[3];
+                r = data[4] << 24 | data[5] << 16 | data[6] << 8 | data[7];
+                Blowfish_encipher(c, &l, &r);
+                data[0] = l >> 24 & 0xff;
+                data[1] = l >> 16 & 0xff;
+                data[2] = l >> 8 & 0xff;
+                data[3] = l & 0xff;
+                data[4] = r >> 24 & 0xff;
+                data[5] = r >> 16 & 0xff;
+                data[6] = r >> 8 & 0xff;
+                data[7] = r & 0xff;
+                data += 8;
+        }
+}
+
+void
+blf_ecb_decrypt(blf_ctx *c, u_int8_t *data, u_int32_t len)
+{
+        u_int32_t l, r;
+        u_int32_t i;
+
+        for (i = 0; i < len; i += 8) {
+                l = data[0] << 24 | data[1] << 16 | data[2] << 8 | data[3];
+                r = data[4] << 24 | data[5] << 16 | data[6] << 8 | data[7];
+                Blowfish_decipher(c, &l, &r);
+                data[0] = l >> 24 & 0xff;
+                data[1] = l >> 16 & 0xff;
+                data[2] = l >> 8 & 0xff;
+                data[3] = l & 0xff;
+                data[4] = r >> 24 & 0xff;
+                data[5] = r >> 16 & 0xff;
+                data[6] = r >> 8 & 0xff;
+                data[7] = r & 0xff;
+                data += 8;
+        }
+}
+
+void
+blf_cbc_encrypt(blf_ctx *c, u_int8_t *iv, u_int8_t *data, u_int32_t len)
+{
+        u_int32_t l, r;
+        u_int32_t i, j;
+
+        for (i = 0; i < len; i += 8) {
+                for (j = 0; j < 8; j++)
+                        data[j] ^= iv[j];
+                l = data[0] << 24 | data[1] << 16 | data[2] << 8 | data[3];
+                r = data[4] << 24 | data[5] << 16 | data[6] << 8 | data[7];
+                Blowfish_encipher(c, &l, &r);
+                data[0] = l >> 24 & 0xff;
+                data[1] = l >> 16 & 0xff;
+                data[2] = l >> 8 & 0xff;
+                data[3] = l & 0xff;
+                data[4] = r >> 24 & 0xff;
+                data[5] = r >> 16 & 0xff;
+                data[6] = r >> 8 & 0xff;
+                data[7] = r & 0xff;
+                iv = data;
+                data += 8;
+        }
+}
+
+void
+blf_cbc_decrypt(blf_ctx *c, u_int8_t *iva, u_int8_t *data, u_int32_t len)
+{
+        u_int32_t l, r;
+        u_int8_t *iv;
+        u_int32_t i, j;
+
+        iv = data + len - 16;
+        data = data + len - 8;
+        for (i = len - 8; i >= 8; i -= 8) {
+                l = data[0] << 24 | data[1] << 16 | data[2] << 8 | data[3];
+                r = data[4] << 24 | data[5] << 16 | data[6] << 8 | data[7];
+                Blowfish_decipher(c, &l, &r);
+                data[0] = l >> 24 & 0xff;
+                data[1] = l >> 16 & 0xff;
+                data[2] = l >> 8 & 0xff;
+                data[3] = l & 0xff;
+                data[4] = r >> 24 & 0xff;
+                data[5] = r >> 16 & 0xff;
+                data[6] = r >> 8 & 0xff;
+                data[7] = r & 0xff;
+                for (j = 0; j < 8; j++)
+                        data[j] ^= iv[j];
+                iv -= 8;
+                data -= 8;
+        }
+        l = data[0] << 24 | data[1] << 16 | data[2] << 8 | data[3];
+        r = data[4] << 24 | data[5] << 16 | data[6] << 8 | data[7];
+        Blowfish_decipher(c, &l, &r);
+        data[0] = l >> 24 & 0xff;
+        data[1] = l >> 16 & 0xff;
+        data[2] = l >> 8 & 0xff;
+        data[3] = l & 0xff;
+        data[4] = r >> 24 & 0xff;
+        data[5] = r >> 16 & 0xff;
+        data[6] = r >> 8 & 0xff;
+        data[7] = r & 0xff;
+        for (j = 0; j < 8; j++)
+                data[j] ^= iva[j];
+}
+
+#if 0
+void
+report(u_int32_t data[], u_int16_t len)
+{
+        u_int16_t i;
+        for (i = 0; i < len; i += 2)
+                printf("Block %0hd: %08lx %08lx.\n",
+                    i / 2, data[i], data[i + 1]);
+}
+void
+main(void)
+{
+
+        blf_ctx c;
+        char    key[] = "AAAAA";
+        char    key2[] = "abcdefghijklmnopqrstuvwxyz";
+
+        u_int32_t data[10];
+        u_int32_t data2[] =
+        {0x424c4f57l, 0x46495348l};
+
+        u_int16_t i;
+
+        /* First test */
+        for (i = 0; i < 10; i++)
+                data[i] = i;
+
+        blf_key(&c, (u_int8_t *) key, 5);
+        blf_enc(&c, data, 5);
+        blf_dec(&c, data, 1);
+        blf_dec(&c, data + 2, 4);
+        printf("Should read as 0 - 9.\n");
+        report(data, 10);
+
+        /* Second test */
+        blf_key(&c, (u_int8_t *) key2, strlen(key2));
+        blf_enc(&c, data2, 1);
+        printf("\nShould read as: 0x324ed0fe 0xf413a203.\n");
+        report(data2, 2);
+        blf_dec(&c, data2, 1);
+        report(data2, 2);
+}
+#endif
diff --git a/src/lib/libc/crypt/chacha_private.h b/src/lib/libc/crypt/chacha_private.h
new file mode 100644
index 0000000000..7c3680fa6d
--- /dev/null
+++ b/src/lib/libc/crypt/chacha_private.h
@@ -0,0 +1,222 @@
+/*
+chacha-merged.c version 20080118
+D. J. Bernstein
+Public domain.
+*/
+
+/* $OpenBSD: chacha_private.h,v 1.2 2013/10/04 07:02:27 djm Exp $ */
+
+typedef unsigned char u8;
+typedef unsigned int u32;
+
+typedef struct
+{
+  u32 input[16]; /* could be compressed */
+} chacha_ctx;
+
+#define U8C(v) (v##U)
+#define U32C(v) (v##U)
+
+#define U8V(v) ((u8)(v) & U8C(0xFF))
+#define U32V(v) ((u32)(v) & U32C(0xFFFFFFFF))
+
+#define ROTL32(v, n) \
+  (U32V((v) << (n)) | ((v) >> (32 - (n))))
+
+#define U8TO32_LITTLE(p) \
+  (((u32)((p)[0])      ) | \
+   ((u32)((p)[1]) <<  8) | \
+   ((u32)((p)[2]) << 16) | \
+   ((u32)((p)[3]) << 24))
+
+#define U32TO8_LITTLE(p, v) \
+  do { \
+    (p)[0] = U8V((v)      ); \
+    (p)[1] = U8V((v) >>  8); \
+    (p)[2] = U8V((v) >> 16); \
+    (p)[3] = U8V((v) >> 24); \
+  } while (0)
+
+#define ROTATE(v,c) (ROTL32(v,c))
+#define XOR(v,w) ((v) ^ (w))
+#define PLUS(v,w) (U32V((v) + (w)))
+#define PLUSONE(v) (PLUS((v),1))
+
+#define QUARTERROUND(a,b,c,d) \
+  a = PLUS(a,b); d = ROTATE(XOR(d,a),16); \
+  c = PLUS(c,d); b = ROTATE(XOR(b,c),12); \
+  a = PLUS(a,b); d = ROTATE(XOR(d,a), 8); \
+  c = PLUS(c,d); b = ROTATE(XOR(b,c), 7);
+
+static const char sigma[16] = "expand 32-byte k";
+static const char tau[16] = "expand 16-byte k";
+
+static void
+chacha_keysetup(chacha_ctx *x,const u8 *k,u32 kbits,u32 ivbits)
+{
+  const char *constants;
+
+  x->input[4] = U8TO32_LITTLE(k + 0);
+  x->input[5] = U8TO32_LITTLE(k + 4);
+  x->input[6] = U8TO32_LITTLE(k + 8);
+  x->input[7] = U8TO32_LITTLE(k + 12);
+  if (kbits == 256) { /* recommended */
+    k += 16;
+    constants = sigma;
+  } else { /* kbits == 128 */
+    constants = tau;
+  }
+  x->input[8] = U8TO32_LITTLE(k + 0);
+  x->input[9] = U8TO32_LITTLE(k + 4);
+  x->input[10] = U8TO32_LITTLE(k + 8);
+  x->input[11] = U8TO32_LITTLE(k + 12);
+  x->input[0] = U8TO32_LITTLE(constants + 0);
+  x->input[1] = U8TO32_LITTLE(constants + 4);
+  x->input[2] = U8TO32_LITTLE(constants + 8);
+  x->input[3] = U8TO32_LITTLE(constants + 12);
+}
+
+static void
+chacha_ivsetup(chacha_ctx *x,const u8 *iv)
+{
+  x->input[12] = 0;
+  x->input[13] = 0;
+  x->input[14] = U8TO32_LITTLE(iv + 0);
+  x->input[15] = U8TO32_LITTLE(iv + 4);
+}
+
+static void
+chacha_encrypt_bytes(chacha_ctx *x,const u8 *m,u8 *c,u32 bytes)
+{
+  u32 x0, x1, x2, x3, x4, x5, x6, x7, x8, x9, x10, x11, x12, x13, x14, x15;
+  u32 j0, j1, j2, j3, j4, j5, j6, j7, j8, j9, j10, j11, j12, j13, j14, j15;
+  u8 *ctarget = NULL;
+  u8 tmp[64];
+  u_int i;
+
+  if (!bytes) return;
+
+  j0 = x->input[0];
+  j1 = x->input[1];
+  j2 = x->input[2];
+  j3 = x->input[3];
+  j4 = x->input[4];
+  j5 = x->input[5];
+  j6 = x->input[6];
+  j7 = x->input[7];
+  j8 = x->input[8];
+  j9 = x->input[9];
+  j10 = x->input[10];
+  j11 = x->input[11];
+  j12 = x->input[12];
+  j13 = x->input[13];
+  j14 = x->input[14];
+  j15 = x->input[15];
+
+  for (;;) {
+    if (bytes < 64) {
+      for (i = 0;i < bytes;++i) tmp[i] = m[i];
+      m = tmp;
+      ctarget = c;
+      c = tmp;
+    }
+    x0 = j0;
+    x1 = j1;
+    x2 = j2;
+    x3 = j3;
+    x4 = j4;
+    x5 = j5;
+    x6 = j6;
+    x7 = j7;
+    x8 = j8;
+    x9 = j9;
+    x10 = j10;
+    x11 = j11;
+    x12 = j12;
+    x13 = j13;
+    x14 = j14;
+    x15 = j15;
+    for (i = 20;i > 0;i -= 2) {
+      QUARTERROUND( x0, x4, x8,x12)
+      QUARTERROUND( x1, x5, x9,x13)
+      QUARTERROUND( x2, x6,x10,x14)
+      QUARTERROUND( x3, x7,x11,x15)
+      QUARTERROUND( x0, x5,x10,x15)
+      QUARTERROUND( x1, x6,x11,x12)
+      QUARTERROUND( x2, x7, x8,x13)
+      QUARTERROUND( x3, x4, x9,x14)
+    }
+    x0 = PLUS(x0,j0);
+    x1 = PLUS(x1,j1);
+    x2 = PLUS(x2,j2);
+    x3 = PLUS(x3,j3);
+    x4 = PLUS(x4,j4);
+    x5 = PLUS(x5,j5);
+    x6 = PLUS(x6,j6);
+    x7 = PLUS(x7,j7);
+    x8 = PLUS(x8,j8);
+    x9 = PLUS(x9,j9);
+    x10 = PLUS(x10,j10);
+    x11 = PLUS(x11,j11);
+    x12 = PLUS(x12,j12);
+    x13 = PLUS(x13,j13);
+    x14 = PLUS(x14,j14);
+    x15 = PLUS(x15,j15);
+
+#ifndef KEYSTREAM_ONLY
+    x0 = XOR(x0,U8TO32_LITTLE(m + 0));
+    x1 = XOR(x1,U8TO32_LITTLE(m + 4));
+    x2 = XOR(x2,U8TO32_LITTLE(m + 8));
+    x3 = XOR(x3,U8TO32_LITTLE(m + 12));
+    x4 = XOR(x4,U8TO32_LITTLE(m + 16));
+    x5 = XOR(x5,U8TO32_LITTLE(m + 20));
+    x6 = XOR(x6,U8TO32_LITTLE(m + 24));
+    x7 = XOR(x7,U8TO32_LITTLE(m + 28));
+    x8 = XOR(x8,U8TO32_LITTLE(m + 32));
+    x9 = XOR(x9,U8TO32_LITTLE(m + 36));
+    x10 = XOR(x10,U8TO32_LITTLE(m + 40));
+    x11 = XOR(x11,U8TO32_LITTLE(m + 44));
+    x12 = XOR(x12,U8TO32_LITTLE(m + 48));
+    x13 = XOR(x13,U8TO32_LITTLE(m + 52));
+    x14 = XOR(x14,U8TO32_LITTLE(m + 56));
+    x15 = XOR(x15,U8TO32_LITTLE(m + 60));
+#endif
+
+    j12 = PLUSONE(j12);
+    if (!j12) {
+      j13 = PLUSONE(j13);
+      /* stopping at 2^70 bytes per nonce is user's responsibility */
+    }
+
+    U32TO8_LITTLE(c + 0,x0);
+    U32TO8_LITTLE(c + 4,x1);
+    U32TO8_LITTLE(c + 8,x2);
+    U32TO8_LITTLE(c + 12,x3);
+    U32TO8_LITTLE(c + 16,x4);
+    U32TO8_LITTLE(c + 20,x5);
+    U32TO8_LITTLE(c + 24,x6);
+    U32TO8_LITTLE(c + 28,x7);
+    U32TO8_LITTLE(c + 32,x8);
+    U32TO8_LITTLE(c + 36,x9);
+    U32TO8_LITTLE(c + 40,x10);
+    U32TO8_LITTLE(c + 44,x11);
+    U32TO8_LITTLE(c + 48,x12);
+    U32TO8_LITTLE(c + 52,x13);
+    U32TO8_LITTLE(c + 56,x14);
+    U32TO8_LITTLE(c + 60,x15);
+
+    if (bytes <= 64) {
+      if (bytes < 64) {
+        for (i = 0;i < bytes;++i) ctarget[i] = c[i];
+      }
+      x->input[12] = j12;
+      x->input[13] = j13;
+      return;
+    }
+    bytes -= 64;
+    c += 64;
+#ifndef KEYSTREAM_ONLY
+    m += 64;
+#endif
+  }
+}
diff --git a/src/lib/libc/crypt/crypt.3 b/src/lib/libc/crypt/crypt.3
new file mode 100644
index 0000000000..f4a78781da
--- /dev/null
+++ b/src/lib/libc/crypt/crypt.3
@@ -0,0 +1,318 @@
+.\" $OpenBSD: crypt.3,v 1.34 2014/03/19 02:34:45 tedu Exp $
+.\"
+.\" FreeSec: libcrypt
+.\"
+.\" Copyright (c) 1994 David Burren
+.\" All rights reserved.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\" 4. Neither the name of the author nor the names of other contributors
+.\"    may be used to endorse or promote products derived from this software
+.\"    without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.\" Manual page, using -mandoc macros
+.\"
+.Dd $Mdocdate: March 19 2014 $
+.Dt CRYPT 3
+.Os
+.Sh NAME
+.Nm crypt ,
+.Nm setkey ,
+.Nm encrypt ,
+.Nm des_setkey ,
+.Nm des_cipher ,
+.Nm bcrypt_gensalt ,
+.Nm bcrypt ,
+.Nm md5crypt
+.Nd password hashing
+.Sh SYNOPSIS
+.In stdlib.h
+.Ft int
+.Fn setkey "const char *key"
+.Pp
+.In unistd.h
+.Ft char *
+.Fn crypt "const char *key" "const char *setting"
+.Ft int
+.Fn encrypt "char *block" "int flag"
+.Ft int
+.Fn des_setkey "const char *key"
+.Ft int
+.Fn des_cipher "const char *in" "char *out" "int32_t salt" "int count"
+.In pwd.h
+.Ft char *
+.Fn bcrypt_gensalt "u_int8_t log_rounds"
+.Ft char *
+.Fn bcrypt "const char *key" "const char *salt"
+.Ft char *
+.Fn md5crypt "const char *key" "const char *salt"
+.Sh DESCRIPTION
+The
+.Fn crypt
+function performs password hashing based on the
+.Tn NBS
+Data Encryption Standard (DES).
+Additional code has been added to deter key search attempts and to use
+stronger hashing algorithms.
+.Pp
+The first argument to
+.Fn crypt
+is a
+.Dv NUL Ns -terminated
+string, typically a user's typed password.
+The second is in one of three forms:
+if it begins with an underscore
+.Pq Ql _
+then an extended format is used
+in interpreting both the key and the setting, as outlined below.
+If it begins
+with a string character
+.Pq Ql $
+and a number then a different algorithm is used depending on the number.
+At the moment a
+.Ql $1
+chooses MD5 hashing and a
+.Ql $2
+chooses Blowfish hashing; see below for more information.
+.Ss Extended crypt
+The
+.Ar key
+is divided into groups of 8 characters (the last group is null-padded)
+and the low-order 7 bits of each character (56 bits per group) are
+used to form the DES key as follows:
+the first group of 56 bits becomes the initial DES key.
+For each additional group, the XOR of the encryption of the current DES
+key with itself and the group bits becomes the next DES key.
+.Pp
+The setting is a 9-character array consisting of an underscore followed
+by 4 bytes of iteration count and 4 bytes of salt.
+These are encoded as printable characters, 6 bits per character,
+least significant character first.
+The values 0 to 63 are encoded as
+.Dq \&./0-9A-Za-z .
+This allows 24 bits for both
+.Fa count
+and
+.Fa salt .
+.Ss "MD5" crypt
+For
+.Tn MD5
+crypt the version number,
+.Fa salt
+and the hashed password are separated by the
+.Ql $
+character.
+The maximum length of a password is limited by
+the length counter of the MD5 context, which is about
+2**64.
+A valid MD5 password entry looks like this:
+.Pp
+.Dq $1$caeiHQwX$hsKqOjrFRRN6K32OWkCBf1 .
+.Pp
+The whole MD5 password string is passed as
+.Fa setting
+for interpretation.
+.Ss "Blowfish" crypt
+The
+.Tn Blowfish
+version of crypt has 128 bits of
+.Fa salt
+in order to make building dictionaries of common passwords space consuming.
+The initial state of the
+.Tn Blowfish
+cipher is expanded using the
+.Fa salt
+and the
+.Fa password
+repeating the process a variable number of rounds, which is encoded in
+the password string.
+The maximum password length is 72.
+The final Blowfish password entry is created by encrypting the string
+.Pp
+.Dq OrpheanBeholderScryDoubt
+.Pp
+with the
+.Tn Blowfish
+state 64 times.
+.Pp
+The version number, the logarithm of the number of rounds and
+the concatenation of salt and hashed password are separated by the
+.Ql $
+character.
+An encoded
+.Sq 8
+would specify 256 rounds.
+A valid Blowfish password looks like this:
+.Pp
+.Dq $2a$12$eIAq8PR8sIUnJ1HaohxX2O9x9Qlm2vK97LJ5dsXdmB.eXF42qjchC .
+.Pp
+The whole Blowfish password string is passed as
+.Fa setting
+for interpretation.
+.Ss "Traditional" crypt
+The first 8 bytes of the key are null-padded, and the low-order 7 bits of
+each character is used to form the 56-bit
+.Tn DES
+key.
+.Pp
+The setting is a 2-character array of the ASCII-encoded salt.
+Thus only 12 bits of
+.Fa salt
+are used.
+.Fa count
+is set to 25.
+.Ss DES Algorithm
+The
+.Fa salt
+introduces disorder in the
+.Tn DES
+algorithm in one of 16777216 or 4096 possible ways
+(i.e., with 24 or 12 bits: if bit
+.Em i
+of the
+.Ar salt
+is set, then bits
+.Em i
+and
+.Em i+24
+are swapped in the
+.Tn DES
+E-box output).
+.Pp
+The DES key is used to encrypt a 64-bit constant using
+.Ar count
+iterations of
+.Tn DES .
+The value returned is a
+.Dv NUL Ns -terminated
+string, 20 or 13 bytes (plus NUL) in length, consisting of the
+.Ar setting
+followed by the encoded 64-bit encryption.
+.Pp
+The functions
+.Fn encrypt ,
+.Fn setkey ,
+.Fn des_setkey ,
+and
+.Fn des_cipher
+provide access to the
+.Tn DES
+algorithm itself.
+.Fn setkey
+is passed a 64-byte array of binary values (numeric 0 or 1).
+A 56-bit key is extracted from this array by dividing the
+array into groups of 8, and ignoring the last bit in each group.
+That bit is reserved for a byte parity check by DES, but is ignored
+by these functions.
+.Pp
+The
+.Fa block
+argument to
+.Fn encrypt
+is also a 64-byte array of binary values.
+If the value of
+.Fa flag
+is 0,
+.Fa block
+is encrypted otherwise it is decrypted.
+The result is returned in the original array
+.Fa block
+after using the key specified by
+.Fn setkey
+to process it.
+.Pp
+The argument to
+.Fn des_setkey
+is a character array of length 8.
+The least significant bit (the parity bit) in each character is ignored,
+and the remaining bits are concatenated to form a 56-bit key.
+The function
+.Fn des_cipher
+encrypts (or decrypts if
+.Fa count
+is negative) the 64-bits stored in the 8 characters at
+.Fa in
+using
+.Xr abs 3
+of
+.Fa count
+iterations of
+.Tn DES
+and stores the 64-bit result in the 8 characters at
+.Fa out
+(which may be the same as
+.Fa in ) .
+The
+.Fa salt
+specifies perturbations to the
+.Tn DES
+E-box output as described above.
+.Pp
+The
+.Fn crypt ,
+.Fn setkey ,
+and
+.Fn des_setkey
+functions all manipulate the same key space.
+.Sh RETURN VALUES
+The function
+.Fn crypt
+returns a pointer to the encrypted value on success, and
+.Dv NULL
+on failure.
+The functions
+.Fn setkey ,
+.Fn encrypt ,
+.Fn des_setkey ,
+and
+.Fn des_cipher
+return 0 on success and 1 on failure.
+.Sh SEE ALSO
+.Xr encrypt 1 ,
+.Xr login 1 ,
+.Xr passwd 1 ,
+.Xr blowfish 3 ,
+.Xr getpass 3 ,
+.Xr md5 3 ,
+.Xr passwd 5
+.Sh HISTORY
+A rotor-based
+.Fn crypt
+function appeared in
+.At v3 .
+The current style
+.Fn crypt
+first appeared in
+.At v7 .
+.Sh AUTHORS
+.An David Burren Aq Mt davidb@werj.com.au
+wrote the original DES functions.
+.Sh BUGS
+The
+.Fn crypt
+function returns a pointer to static data, and subsequent calls to
+.Fn crypt
+will modify the same object.
+.Pp
+With DES hashing, passwords containing the byte 0x80 use less key entropy
+than other passwords.
+This is an implementation bug, not a bug in the DES cipher.
diff --git a/src/lib/libc/crypt/crypt.c b/src/lib/libc/crypt/crypt.c
new file mode 100644
index 0000000000..15a784532d
--- /dev/null
+++ b/src/lib/libc/crypt/crypt.c
@@ -0,0 +1,696 @@
+/*      $OpenBSD: crypt.c,v 1.20 2005/08/08 08:05:33 espie Exp $        */
+
+/*
+ * FreeSec: libcrypt
+ *
+ * Copyright (c) 1994 David Burren
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 4. Neither the name of the author nor the names of other contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ *
+ * This is an original implementation of the DES and the crypt(3) interfaces
+ * by David Burren <davidb@werj.com.au>.
+ *
+ * An excellent reference on the underlying algorithm (and related
+ * algorithms) is:
+ *
+ *      B. Schneier, Applied Cryptography: protocols, algorithms,
+ *      and source code in C, John Wiley & Sons, 1994.
+ *
+ * Note that in that book's description of DES the lookups for the initial,
+ * pbox, and final permutations are inverted (this has been brought to the
+ * attention of the author).  A list of errata for this book has been
+ * posted to the sci.crypt newsgroup by the author and is available for FTP.
+ */
+
+#include <sys/types.h>
+#include <sys/param.h>
+#include <pwd.h>
+#include <unistd.h>
+#include <string.h>
+
+#ifdef DEBUG
+# include <stdio.h>
+#endif
+
+static const u_char     IP[64] = {
+        58, 50, 42, 34, 26, 18, 10,  2, 60, 52, 44, 36, 28, 20, 12,  4,
+        62, 54, 46, 38, 30, 22, 14,  6, 64, 56, 48, 40, 32, 24, 16,  8,
+        57, 49, 41, 33, 25, 17,  9,  1, 59, 51, 43, 35, 27, 19, 11,  3,
+        61, 53, 45, 37, 29, 21, 13,  5, 63, 55, 47, 39, 31, 23, 15,  7
+};
+
+static u_char   inv_key_perm[64];
+static u_char   u_key_perm[56];
+static u_char   const key_perm[56] = {
+        57, 49, 41, 33, 25, 17,  9,  1, 58, 50, 42, 34, 26, 18,
+        10,  2, 59, 51, 43, 35, 27, 19, 11,  3, 60, 52, 44, 36,
+        63, 55, 47, 39, 31, 23, 15,  7, 62, 54, 46, 38, 30, 22,
+        14,  6, 61, 53, 45, 37, 29, 21, 13,  5, 28, 20, 12,  4
+};
+
+static const u_char     key_shifts[16] = {
+        1, 1, 2, 2, 2, 2, 2, 2, 1, 2, 2, 2, 2, 2, 2, 1
+};
+
+static u_char   inv_comp_perm[56];
+static const u_char     comp_perm[48] = {
+        14, 17, 11, 24,  1,  5,  3, 28, 15,  6, 21, 10,
+        23, 19, 12,  4, 26,  8, 16,  7, 27, 20, 13,  2,
+        41, 52, 31, 37, 47, 55, 30, 40, 51, 45, 33, 48,
+        44, 49, 39, 56, 34, 53, 46, 42, 50, 36, 29, 32
+};
+
+/*
+ *      No E box is used, as it's replaced by some ANDs, shifts, and ORs.
+ */
+
+static u_char   u_sbox[8][64];
+static const u_char     sbox[8][64] = {
+        {
+                14,  4, 13,  1,  2, 15, 11,  8,  3, 10,  6, 12,  5,  9,  0,  7,
+                 0, 15,  7,  4, 14,  2, 13,  1, 10,  6, 12, 11,  9,  5,  3,  8,
+                 4,  1, 14,  8, 13,  6,  2, 11, 15, 12,  9,  7,  3, 10,  5,  0,
+                15, 12,  8,  2,  4,  9,  1,  7,  5, 11,  3, 14, 10,  0,  6, 13
+        },
+        {
+                15,  1,  8, 14,  6, 11,  3,  4,  9,  7,  2, 13, 12,  0,  5, 10,
+                 3, 13,  4,  7, 15,  2,  8, 14, 12,  0,  1, 10,  6,  9, 11,  5,
+                 0, 14,  7, 11, 10,  4, 13,  1,  5,  8, 12,  6,  9,  3,  2, 15,
+                13,  8, 10,  1,  3, 15,  4,  2, 11,  6,  7, 12,  0,  5, 14,  9
+        },
+        {
+                10,  0,  9, 14,  6,  3, 15,  5,  1, 13, 12,  7, 11,  4,  2,  8,
+                13,  7,  0,  9,  3,  4,  6, 10,  2,  8,  5, 14, 12, 11, 15,  1,
+                13,  6,  4,  9,  8, 15,  3,  0, 11,  1,  2, 12,  5, 10, 14,  7,
+                 1, 10, 13,  0,  6,  9,  8,  7,  4, 15, 14,  3, 11,  5,  2, 12
+        },
+        {
+                 7, 13, 14,  3,  0,  6,  9, 10,  1,  2,  8,  5, 11, 12,  4, 15,
+                13,  8, 11,  5,  6, 15,  0,  3,  4,  7,  2, 12,  1, 10, 14,  9,
+                10,  6,  9,  0, 12, 11,  7, 13, 15,  1,  3, 14,  5,  2,  8,  4,
+                 3, 15,  0,  6, 10,  1, 13,  8,  9,  4,  5, 11, 12,  7,  2, 14
+        },
+        {
+                 2, 12,  4,  1,  7, 10, 11,  6,  8,  5,  3, 15, 13,  0, 14,  9,
+                14, 11,  2, 12,  4,  7, 13,  1,  5,  0, 15, 10,  3,  9,  8,  6,
+                 4,  2,  1, 11, 10, 13,  7,  8, 15,  9, 12,  5,  6,  3,  0, 14,
+                11,  8, 12,  7,  1, 14,  2, 13,  6, 15,  0,  9, 10,  4,  5,  3
+        },
+        {
+                12,  1, 10, 15,  9,  2,  6,  8,  0, 13,  3,  4, 14,  7,  5, 11,
+                10, 15,  4,  2,  7, 12,  9,  5,  6,  1, 13, 14,  0, 11,  3,  8,
+                 9, 14, 15,  5,  2,  8, 12,  3,  7,  0,  4, 10,  1, 13, 11,  6,
+                 4,  3,  2, 12,  9,  5, 15, 10, 11, 14,  1,  7,  6,  0,  8, 13
+        },
+        {
+                 4, 11,  2, 14, 15,  0,  8, 13,  3, 12,  9,  7,  5, 10,  6,  1,
+                13,  0, 11,  7,  4,  9,  1, 10, 14,  3,  5, 12,  2, 15,  8,  6,
+                 1,  4, 11, 13, 12,  3,  7, 14, 10, 15,  6,  8,  0,  5,  9,  2,
+                 6, 11, 13,  8,  1,  4, 10,  7,  9,  5,  0, 15, 14,  2,  3, 12
+        },
+        {
+                13,  2,  8,  4,  6, 15, 11,  1, 10,  9,  3, 14,  5,  0, 12,  7,
+                 1, 15, 13,  8, 10,  3,  7,  4, 12,  5,  6, 11,  0, 14,  9,  2,
+                 7, 11,  4,  1,  9, 12, 14,  2,  0,  6, 10, 13, 15,  3,  5,  8,
+                 2,  1, 14,  7,  4, 10,  8, 13, 15, 12,  9,  0,  3,  5,  6, 11
+        }
+};
+
+static u_char   un_pbox[32];
+static const u_char     pbox[32] = {
+        16,  7, 20, 21, 29, 12, 28, 17,  1, 15, 23, 26,  5, 18, 31, 10,
+         2,  8, 24, 14, 32, 27,  3,  9, 19, 13, 30,  6, 22, 11,  4, 25
+};
+
+const u_int32_t _des_bits32[32] =
+{
+        0x80000000, 0x40000000, 0x20000000, 0x10000000,
+        0x08000000, 0x04000000, 0x02000000, 0x01000000,
+        0x00800000, 0x00400000, 0x00200000, 0x00100000,
+        0x00080000, 0x00040000, 0x00020000, 0x00010000,
+        0x00008000, 0x00004000, 0x00002000, 0x00001000,
+        0x00000800, 0x00000400, 0x00000200, 0x00000100,
+        0x00000080, 0x00000040, 0x00000020, 0x00000010,
+        0x00000008, 0x00000004, 0x00000002, 0x00000001
+};
+
+const u_char    _des_bits8[8] = { 0x80, 0x40, 0x20, 0x10, 0x08, 0x04, 0x02, 0x01 };
+
+static u_int32_t saltbits;
+static int32_t  old_salt;
+static const u_int32_t *bits28, *bits24;
+static u_char   init_perm[64], final_perm[64];
+static u_int32_t en_keysl[16], en_keysr[16];
+static u_int32_t de_keysl[16], de_keysr[16];
+int     _des_initialised = 0;
+static u_char   m_sbox[4][4096];
+static u_int32_t psbox[4][256];
+static u_int32_t ip_maskl[8][256], ip_maskr[8][256];
+static u_int32_t fp_maskl[8][256], fp_maskr[8][256];
+static u_int32_t key_perm_maskl[8][128], key_perm_maskr[8][128];
+static u_int32_t comp_maskl[8][128], comp_maskr[8][128];
+static u_int32_t old_rawkey0, old_rawkey1;
+
+static u_char   ascii64[] =
+         "./0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz";
+/*        0000000000111111111122222222223333333333444444444455555555556666 */
+/*        0123456789012345678901234567890123456789012345678901234567890123 */
+
+static __inline int
+ascii_to_bin(char ch)
+{
+        if (ch > 'z')
+                return(0);
+        if (ch >= 'a')
+                return(ch - 'a' + 38);
+        if (ch > 'Z')
+                return(0);
+        if (ch >= 'A')
+                return(ch - 'A' + 12);
+        if (ch > '9')
+                return(0);
+        if (ch >= '.')
+                return(ch - '.');
+        return(0);
+}
+
+void
+_des_init(void)
+{
+        int     i, j, b, k, inbit, obit;
+        u_int32_t       *p, *il, *ir, *fl, *fr;
+
+        old_rawkey0 = old_rawkey1 = 0;
+        saltbits = 0;
+        old_salt = 0;
+        bits24 = (bits28 = _des_bits32 + 4) + 4;
+
+        /*
+         * Invert the S-boxes, reordering the input bits.
+         */
+        for (i = 0; i < 8; i++)
+                for (j = 0; j < 64; j++) {
+                        b = (j & 0x20) | ((j & 1) << 4) | ((j >> 1) & 0xf);
+                        u_sbox[i][j] = sbox[i][b];
+                }
+
+        /*
+         * Convert the inverted S-boxes into 4 arrays of 8 bits.
+         * Each will handle 12 bits of the S-box input.
+         */
+        for (b = 0; b < 4; b++)
+                for (i = 0; i < 64; i++)
+                        for (j = 0; j < 64; j++)
+                                m_sbox[b][(i << 6) | j] =
+                                        (u_sbox[(b << 1)][i] << 4) |
+                                        u_sbox[(b << 1) + 1][j];
+
+        /*
+         * Set up the initial & final permutations into a useful form, and
+         * initialise the inverted key permutation.
+         */
+        for (i = 0; i < 64; i++) {
+                init_perm[final_perm[i] = IP[i] - 1] = i;
+                inv_key_perm[i] = 255;
+        }
+
+        /*
+         * Invert the key permutation and initialise the inverted key
+         * compression permutation.
+         */
+        for (i = 0; i < 56; i++) {
+                u_key_perm[i] = key_perm[i] - 1;
+                inv_key_perm[key_perm[i] - 1] = i;
+                inv_comp_perm[i] = 255;
+        }
+
+        /*
+         * Invert the key compression permutation.
+         */
+        for (i = 0; i < 48; i++) {
+                inv_comp_perm[comp_perm[i] - 1] = i;
+        }
+
+        /*
+         * Set up the OR-mask arrays for the initial and final permutations,
+         * and for the key initial and compression permutations.
+         */
+        for (k = 0; k < 8; k++) {
+                for (i = 0; i < 256; i++) {
+                        *(il = &ip_maskl[k][i]) = 0;
+                        *(ir = &ip_maskr[k][i]) = 0;
+                        *(fl = &fp_maskl[k][i]) = 0;
+                        *(fr = &fp_maskr[k][i]) = 0;
+                        for (j = 0; j < 8; j++) {
+                                inbit = 8 * k + j;
+                                if (i & _des_bits8[j]) {
+                                        if ((obit = init_perm[inbit]) < 32)
+                                                *il |= _des_bits32[obit];
+                                        else
+                                                *ir |= _des_bits32[obit-32];
+                                        if ((obit = final_perm[inbit]) < 32)
+                                                *fl |= _des_bits32[obit];
+                                        else
+                                                *fr |= _des_bits32[obit - 32];
+                                }
+                        }
+                }
+                for (i = 0; i < 128; i++) {
+                        *(il = &key_perm_maskl[k][i]) = 0;
+                        *(ir = &key_perm_maskr[k][i]) = 0;
+                        for (j = 0; j < 7; j++) {
+                                inbit = 8 * k + j;
+                                if (i & _des_bits8[j + 1]) {
+                                        if ((obit = inv_key_perm[inbit]) == 255)
+                                                continue;
+                                        if (obit < 28)
+                                                *il |= bits28[obit];
+                                        else
+                                                *ir |= bits28[obit - 28];
+                                }
+                        }
+                        *(il = &comp_maskl[k][i]) = 0;
+                        *(ir = &comp_maskr[k][i]) = 0;
+                        for (j = 0; j < 7; j++) {
+                                inbit = 7 * k + j;
+                                if (i & _des_bits8[j + 1]) {
+                                        if ((obit=inv_comp_perm[inbit]) == 255)
+                                                continue;
+                                        if (obit < 24)
+                                                *il |= bits24[obit];
+                                        else
+                                                *ir |= bits24[obit - 24];
+                                }
+                        }
+                }
+        }
+
+        /*
+         * Invert the P-box permutation, and convert into OR-masks for
+         * handling the output of the S-box arrays setup above.
+         */
+        for (i = 0; i < 32; i++)
+                un_pbox[pbox[i] - 1] = i;
+
+        for (b = 0; b < 4; b++)
+                for (i = 0; i < 256; i++) {
+                        *(p = &psbox[b][i]) = 0;
+                        for (j = 0; j < 8; j++) {
+                                if (i & _des_bits8[j])
+                                        *p |= _des_bits32[un_pbox[8 * b + j]];
+                        }
+                }
+
+        _des_initialised = 1;
+}
+
+void
+_des_setup_salt(int32_t salt)
+{
+        u_int32_t       obit, saltbit;
+        int     i;
+
+        if (salt == old_salt)
+                return;
+        old_salt = salt;
+
+        saltbits = 0;
+        saltbit = 1;
+        obit = 0x800000;
+        for (i = 0; i < 24; i++) {
+                if (salt & saltbit)
+                        saltbits |= obit;
+                saltbit <<= 1;
+                obit >>= 1;
+        }
+}
+
+int
+des_setkey(const char *key)
+{
+        u_int32_t k0, k1, rawkey0, rawkey1;
+        int     shifts, round;
+
+        if (!_des_initialised)
+                _des_init();
+
+        rawkey0 = ntohl(*(u_int32_t *) key);
+        rawkey1 = ntohl(*(u_int32_t *) (key + 4));
+
+        if ((rawkey0 | rawkey1)
+            && rawkey0 == old_rawkey0
+            && rawkey1 == old_rawkey1) {
+                /*
+                 * Already setup for this key.
+                 * This optimisation fails on a zero key (which is weak and
+                 * has bad parity anyway) in order to simplify the starting
+                 * conditions.
+                 */
+                return(0);
+        }
+        old_rawkey0 = rawkey0;
+        old_rawkey1 = rawkey1;
+
+        /*
+         *      Do key permutation and split into two 28-bit subkeys.
+         */
+        k0 = key_perm_maskl[0][rawkey0 >> 25]
+           | key_perm_maskl[1][(rawkey0 >> 17) & 0x7f]
+           | key_perm_maskl[2][(rawkey0 >> 9) & 0x7f]
+           | key_perm_maskl[3][(rawkey0 >> 1) & 0x7f]
+           | key_perm_maskl[4][rawkey1 >> 25]
+           | key_perm_maskl[5][(rawkey1 >> 17) & 0x7f]
+           | key_perm_maskl[6][(rawkey1 >> 9) & 0x7f]
+           | key_perm_maskl[7][(rawkey1 >> 1) & 0x7f];
+        k1 = key_perm_maskr[0][rawkey0 >> 25]
+           | key_perm_maskr[1][(rawkey0 >> 17) & 0x7f]
+           | key_perm_maskr[2][(rawkey0 >> 9) & 0x7f]
+           | key_perm_maskr[3][(rawkey0 >> 1) & 0x7f]
+           | key_perm_maskr[4][rawkey1 >> 25]
+           | key_perm_maskr[5][(rawkey1 >> 17) & 0x7f]
+           | key_perm_maskr[6][(rawkey1 >> 9) & 0x7f]
+           | key_perm_maskr[7][(rawkey1 >> 1) & 0x7f];
+        /*
+         *      Rotate subkeys and do compression permutation.
+         */
+        shifts = 0;
+        for (round = 0; round < 16; round++) {
+                u_int32_t       t0, t1;
+
+                shifts += key_shifts[round];
+
+                t0 = (k0 << shifts) | (k0 >> (28 - shifts));
+                t1 = (k1 << shifts) | (k1 >> (28 - shifts));
+
+                de_keysl[15 - round] =
+                en_keysl[round] = comp_maskl[0][(t0 >> 21) & 0x7f]
+                                | comp_maskl[1][(t0 >> 14) & 0x7f]
+                                | comp_maskl[2][(t0 >> 7) & 0x7f]
+                                | comp_maskl[3][t0 & 0x7f]
+                                | comp_maskl[4][(t1 >> 21) & 0x7f]
+                                | comp_maskl[5][(t1 >> 14) & 0x7f]
+                                | comp_maskl[6][(t1 >> 7) & 0x7f]
+                                | comp_maskl[7][t1 & 0x7f];
+
+                de_keysr[15 - round] =
+                en_keysr[round] = comp_maskr[0][(t0 >> 21) & 0x7f]
+                                | comp_maskr[1][(t0 >> 14) & 0x7f]
+                                | comp_maskr[2][(t0 >> 7) & 0x7f]
+                                | comp_maskr[3][t0 & 0x7f]
+                                | comp_maskr[4][(t1 >> 21) & 0x7f]
+                                | comp_maskr[5][(t1 >> 14) & 0x7f]
+                                | comp_maskr[6][(t1 >> 7) & 0x7f]
+                                | comp_maskr[7][t1 & 0x7f];
+        }
+        return(0);
+}
+
+int
+_des_do_des(u_int32_t l_in, u_int32_t r_in, u_int32_t *l_out, u_int32_t *r_out,
+    int count)
+{
+        /*
+         *      l_in, r_in, l_out, and r_out are in pseudo-"big-endian" format.
+         */
+        u_int32_t       l, r, *kl, *kr, *kl1, *kr1;
+        u_int32_t       f, r48l, r48r;
+        int             round;
+
+        if (count == 0) {
+                return(1);
+        } else if (count > 0) {
+                /*
+                 * Encrypting
+                 */
+                kl1 = en_keysl;
+                kr1 = en_keysr;
+        } else {
+                /*
+                 * Decrypting
+                 */
+                count = -count;
+                kl1 = de_keysl;
+                kr1 = de_keysr;
+        }
+
+        /*
+         *      Do initial permutation (IP).
+         */
+        l = ip_maskl[0][l_in >> 24]
+          | ip_maskl[1][(l_in >> 16) & 0xff]
+          | ip_maskl[2][(l_in >> 8) & 0xff]
+          | ip_maskl[3][l_in & 0xff]
+          | ip_maskl[4][r_in >> 24]
+          | ip_maskl[5][(r_in >> 16) & 0xff]
+          | ip_maskl[6][(r_in >> 8) & 0xff]
+          | ip_maskl[7][r_in & 0xff];
+        r = ip_maskr[0][l_in >> 24]
+          | ip_maskr[1][(l_in >> 16) & 0xff]
+          | ip_maskr[2][(l_in >> 8) & 0xff]
+          | ip_maskr[3][l_in & 0xff]
+          | ip_maskr[4][r_in >> 24]
+          | ip_maskr[5][(r_in >> 16) & 0xff]
+          | ip_maskr[6][(r_in >> 8) & 0xff]
+          | ip_maskr[7][r_in & 0xff];
+
+        while (count--) {
+                /*
+                 * Do each round.
+                 */
+                kl = kl1;
+                kr = kr1;
+                round = 16;
+                while (round--) {
+                        /*
+                         * Expand R to 48 bits (simulate the E-box).
+                         */
+                        r48l    = ((r & 0x00000001) << 23)
+                                | ((r & 0xf8000000) >> 9)
+                                | ((r & 0x1f800000) >> 11)
+                                | ((r & 0x01f80000) >> 13)
+                                | ((r & 0x001f8000) >> 15);
+
+                        r48r    = ((r & 0x0001f800) << 7)
+                                | ((r & 0x00001f80) << 5)
+                                | ((r & 0x000001f8) << 3)
+                                | ((r & 0x0000001f) << 1)
+                                | ((r & 0x80000000) >> 31);
+                        /*
+                         * Do salting for crypt() and friends, and
+                         * XOR with the permuted key.
+                         */
+                        f = (r48l ^ r48r) & saltbits;
+                        r48l ^= f ^ *kl++;
+                        r48r ^= f ^ *kr++;
+                        /*
+                         * Do sbox lookups (which shrink it back to 32 bits)
+                         * and do the pbox permutation at the same time.
+                         */
+                        f = psbox[0][m_sbox[0][r48l >> 12]]
+                          | psbox[1][m_sbox[1][r48l & 0xfff]]
+                          | psbox[2][m_sbox[2][r48r >> 12]]
+                          | psbox[3][m_sbox[3][r48r & 0xfff]];
+                        /*
+                         * Now that we've permuted things, complete f().
+                         */
+                        f ^= l;
+                        l = r;
+                        r = f;
+                }
+                r = l;
+                l = f;
+        }
+        /*
+         * Do final permutation (inverse of IP).
+         */
+        *l_out  = fp_maskl[0][l >> 24]
+                | fp_maskl[1][(l >> 16) & 0xff]
+                | fp_maskl[2][(l >> 8) & 0xff]
+                | fp_maskl[3][l & 0xff]
+                | fp_maskl[4][r >> 24]
+                | fp_maskl[5][(r >> 16) & 0xff]
+                | fp_maskl[6][(r >> 8) & 0xff]
+                | fp_maskl[7][r & 0xff];
+        *r_out  = fp_maskr[0][l >> 24]
+                | fp_maskr[1][(l >> 16) & 0xff]
+                | fp_maskr[2][(l >> 8) & 0xff]
+                | fp_maskr[3][l & 0xff]
+                | fp_maskr[4][r >> 24]
+                | fp_maskr[5][(r >> 16) & 0xff]
+                | fp_maskr[6][(r >> 8) & 0xff]
+                | fp_maskr[7][r & 0xff];
+        return(0);
+}
+
+int
+des_cipher(const char *in, char *out, int32_t salt, int count)
+{
+        u_int32_t l_out, r_out, rawl, rawr;
+        u_int32_t x[2];
+        int     retval;
+
+        if (!_des_initialised)
+                _des_init();
+
+        _des_setup_salt(salt);
+
+        memcpy(x, in, sizeof x);
+        rawl = ntohl(x[0]);
+        rawr = ntohl(x[1]);
+        retval = _des_do_des(rawl, rawr, &l_out, &r_out, count);
+
+        x[0] = htonl(l_out);
+        x[1] = htonl(r_out);
+        memcpy(out, x, sizeof x);
+        return(retval);
+}
+
+char *
+crypt(const char *key, const char *setting)
+{
+        int             i;
+        u_int32_t       count, salt, l, r0, r1, keybuf[2];
+        u_char          *p, *q;
+        static u_char   output[21];
+        extern char     *md5crypt(const char *, const char *);
+        extern char     *bcrypt(const char *, const char *);
+
+        if (setting[0] == '$') {
+                switch (setting[1]) {
+                case '1':
+                        return (md5crypt(key, setting));
+                default:
+                        return bcrypt(key, setting);
+                }
+        }
+
+        if (!_des_initialised)
+                _des_init();
+
+        /*
+         * Copy the key, shifting each character up by one bit
+         * and padding with zeros.
+         */
+        q = (u_char *) keybuf;
+        while ((q - (u_char *) keybuf) < sizeof(keybuf)) {
+                if ((*q++ = *key << 1))
+                        key++;
+        }
+        if (des_setkey((char *) keybuf))
+                return(NULL);
+
+        if (*setting == _PASSWORD_EFMT1) {
+                /*
+                 * "new"-style:
+                 *      setting - underscore, 4 bytes of count, 4 bytes of salt
+                 *      key - unlimited characters
+                 */
+                for (i = 1, count = 0; i < 5; i++)
+                        count |= ascii_to_bin(setting[i]) << (i - 1) * 6;
+
+                for (i = 5, salt = 0; i < 9; i++)
+                        salt |= ascii_to_bin(setting[i]) << (i - 5) * 6;
+
+                while (*key) {
+                        /*
+                         * Encrypt the key with itself.
+                         */
+                        if (des_cipher((char *)keybuf, (char *)keybuf, 0, 1))
+                                return(NULL);
+                        /*
+                         * And XOR with the next 8 characters of the key.
+                         */
+                        q = (u_char *) keybuf;
+                        while (((q - (u_char *) keybuf) < sizeof(keybuf)) &&
+                                        *key)
+                                *q++ ^= *key++ << 1;
+
+                        if (des_setkey((char *) keybuf))
+                                return(NULL);
+                }
+                strlcpy((char *)output, setting, 10);
+
+                /*
+                 * Double check that we weren't given a short setting.
+                 * If we were, the above code will probably have created
+                 * weird values for count and salt, but we don't really care.
+                 * Just make sure the output string doesn't have an extra
+                 * NUL in it.
+                 */
+                p = output + strlen((const char *)output);
+        } else {
+                /*
+                 * "old"-style:
+                 *      setting - 2 bytes of salt
+                 *      key - up to 8 characters
+                 */
+                count = 25;
+
+                salt = (ascii_to_bin(setting[1]) << 6)
+                     |  ascii_to_bin(setting[0]);
+
+                output[0] = setting[0];
+                /*
+                 * If the encrypted password that the salt was extracted from
+                 * is only 1 character long, the salt will be corrupted.  We
+                 * need to ensure that the output string doesn't have an extra
+                 * NUL in it!
+                 */
+                output[1] = setting[1] ? setting[1] : output[0];
+
+                p = output + 2;
+        }
+        _des_setup_salt(salt);
+
+        /*
+         * Do it.
+         */
+        if (_des_do_des(0, 0, &r0, &r1, count))
+                return(NULL);
+        /*
+         * Now encode the result...
+         */
+        l = (r0 >> 8);
+        *p++ = ascii64[(l >> 18) & 0x3f];
+        *p++ = ascii64[(l >> 12) & 0x3f];
+        *p++ = ascii64[(l >> 6) & 0x3f];
+        *p++ = ascii64[l & 0x3f];
+
+        l = (r0 << 16) | ((r1 >> 16) & 0xffff);
+        *p++ = ascii64[(l >> 18) & 0x3f];
+        *p++ = ascii64[(l >> 12) & 0x3f];
+        *p++ = ascii64[(l >> 6) & 0x3f];
+        *p++ = ascii64[l & 0x3f];
+
+        l = r1 << 2;
+        *p++ = ascii64[(l >> 12) & 0x3f];
+        *p++ = ascii64[(l >> 6) & 0x3f];
+        *p++ = ascii64[l & 0x3f];
+        *p = 0;
+
+        return((char *)output);
+}
diff --git a/src/lib/libc/crypt/crypt2.c b/src/lib/libc/crypt/crypt2.c
new file mode 100644
index 0000000000..f31818ae2b
--- /dev/null
+++ b/src/lib/libc/crypt/crypt2.c
@@ -0,0 +1,107 @@
+/*      $OpenBSD: crypt2.c,v 1.4 2013/04/17 17:40:35 tedu Exp $ */
+
+/*
+ * FreeSec: libcrypt
+ *
+ * Copyright (c) 1994 David Burren
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 4. Neither the name of the author nor the names of other contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ *
+ * This is an original implementation of the DES and the crypt(3) interfaces
+ * by David Burren <davidb@werj.com.au>.
+ *
+ * An excellent reference on the underlying algorithm (and related
+ * algorithms) is:
+ *
+ *      B. Schneier, Applied Cryptography: protocols, algorithms,
+ *      and source code in C, John Wiley & Sons, 1994.
+ *
+ * Note that in that book's description of DES the lookups for the initial,
+ * pbox, and final permutations are inverted (this has been brought to the
+ * attention of the author).  A list of errata for this book has been
+ * posted to the sci.crypt newsgroup by the author and is available for FTP.
+ */
+
+#include <sys/types.h>
+#include <sys/param.h>
+#include <pwd.h>
+#include <unistd.h>
+#include <string.h>
+
+#ifdef DEBUG
+# include <stdio.h>
+#endif
+
+extern const u_char _des_bits8[8];
+extern const u_int32_t _des_bits32[32];
+extern int      _des_initialised;
+void _des_init(void);
+void _des_setup_salt(int32_t salt);
+int _des_do_des(u_int32_t , u_int32_t , u_int32_t *, u_int32_t *, int);
+
+int
+setkey(const char *key)
+{
+        int     i, j;
+        u_int32_t packed_keys[2];
+        u_char  *p;
+
+        p = (u_char *) packed_keys;
+
+        for (i = 0; i < 8; i++) {
+                p[i] = 0;
+                for (j = 0; j < 8; j++)
+                        if (*key++ & 1)
+                                p[i] |= _des_bits8[j];
+        }
+        return(des_setkey((char *)p));
+}
+
+int
+encrypt(char *block, int flag)
+{
+        u_int32_t io[2];
+        u_char  *p;
+        int     i, j, retval;
+
+        if (!_des_initialised)
+                _des_init();
+
+        _des_setup_salt(0);
+        p = (u_char *)block;
+        for (i = 0; i < 2; i++) {
+                io[i] = 0L;
+                for (j = 0; j < 32; j++)
+                        if (*p++ & 1)
+                                io[i] |= _des_bits32[j];
+        }
+        retval = _des_do_des(io[0], io[1], io, io + 1, flag ? -1 : 1);
+        for (i = 0; i < 2; i++)
+                for (j = 0; j < 32; j++)
+                        block[(i << 5) | j] = (io[i] & _des_bits32[j]) ? 1 : 0;
+        return(retval);
+}
diff --git a/src/lib/libc/crypt/md5crypt.c b/src/lib/libc/crypt/md5crypt.c
new file mode 100644
index 0000000000..a855835bcc
--- /dev/null
+++ b/src/lib/libc/crypt/md5crypt.c
@@ -0,0 +1,160 @@
+/*      $OpenBSD: md5crypt.c,v 1.17 2014/04/03 15:55:29 beck Exp $      */
+
+/*
+ * Copyright (c) 2000 Poul-Henning Kamp <phk@FreeBSD.org>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+/*
+ * If we meet some day, and you think this stuff is worth it, you
+ * can buy me a beer in return. Poul-Henning Kamp
+ */
+
+#include <unistd.h>
+#include <stdio.h>
+#include <string.h>
+#include <md5.h>
+#include <string.h>
+
+static unsigned char itoa64[] =         /* 0 ... 63 => ascii - 64 */
+        "./0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz";
+
+static void to64(char *, u_int32_t, int);
+
+static void
+to64(char *s, u_int32_t v, int n)
+{
+        while (--n >= 0) {
+                *s++ = itoa64[v&0x3f];
+                v >>= 6;
+        }
+}
+
+/*
+ * UNIX password
+ *
+ * Use MD5 for what it is best at...
+ */
+
+char *md5crypt(const char *pw, const char *salt);
+
+char *
+md5crypt(const char *pw, const char *salt)
+{
+        /*
+         * This string is the magic for this algorithm.
+         * Having it this way, we can get better later on.
+         */
+        static unsigned char    *magic = (unsigned char *)"$1$";
+
+        static char     passwd[120], *p;
+        static const unsigned char *sp,*ep;
+        unsigned char   final[16];
+        int sl,pl,i;
+        MD5_CTX ctx,ctx1;
+        u_int32_t l;
+
+        /* Refine the salt first */
+        sp = (const unsigned char *)salt;
+
+        /* If it starts with the magic string, then skip that */
+        if(!strncmp((const char *)sp,(const char *)magic,strlen((const char *)magic)))
+                sp += strlen((const char *)magic);
+
+        /* It stops at the first '$', max 8 chars */
+        for(ep=sp;*ep && *ep != '$' && ep < (sp+8);ep++)
+                continue;
+
+        /* get the length of the true salt */
+        sl = ep - sp;
+
+        MD5Init(&ctx);
+
+        /* The password first, since that is what is most unknown */
+        MD5Update(&ctx,(const unsigned char *)pw,strlen(pw));
+
+        /* Then our magic string */
+        MD5Update(&ctx,magic,strlen((const char *)magic));
+
+        /* Then the raw salt */
+        MD5Update(&ctx,sp,sl);
+
+        /* Then just as many characters of the MD5(pw,salt,pw) */
+        MD5Init(&ctx1);
+        MD5Update(&ctx1,(const unsigned char *)pw,strlen(pw));
+        MD5Update(&ctx1,sp,sl);
+        MD5Update(&ctx1,(const unsigned char *)pw,strlen(pw));
+        MD5Final(final,&ctx1);
+        for(pl = strlen(pw); pl > 0; pl -= 16)
+                MD5Update(&ctx,final,pl>16 ? 16 : pl);
+
+        /* Don't leave anything around in vm they could use. */
+        memset(final,0,sizeof final);
+
+        /* Then something really weird... */
+        for (i = strlen(pw); i ; i >>= 1)
+                if(i&1)
+                    MD5Update(&ctx, final, 1);
+                else
+                    MD5Update(&ctx, (const unsigned char *)pw, 1);
+
+        /* Now make the output string */
+        snprintf(passwd, sizeof(passwd), "%s%.*s$", (char *)magic,
+            sl, (const char *)sp);
+
+        MD5Final(final,&ctx);
+
+        /*
+         * And now, just to make sure things don't run too fast
+         * On a 60 MHz Pentium this takes 34 msec, so you would
+         * need 30 seconds to build a 1000 entry dictionary...
+         * On a modern machine, with possible GPU optimization,
+         * this will run a lot faster than that.
+         */
+        for(i=0;i<1000;i++) {
+                MD5Init(&ctx1);
+                if(i & 1)
+                        MD5Update(&ctx1,(const unsigned char *)pw,strlen(pw));
+                else
+                        MD5Update(&ctx1,final,16);
+
+                if(i % 3)
+                        MD5Update(&ctx1,sp,sl);
+
+                if(i % 7)
+                        MD5Update(&ctx1,(const unsigned char *)pw,strlen(pw));
+
+                if(i & 1)
+                        MD5Update(&ctx1,final,16);
+                else
+                        MD5Update(&ctx1,(const unsigned char *)pw,strlen(pw));
+                MD5Final(final,&ctx1);
+        }
+
+        p = passwd + strlen(passwd);
+
+        l = (final[ 0]<<16) | (final[ 6]<<8) | final[12]; to64(p,l,4); p += 4;
+        l = (final[ 1]<<16) | (final[ 7]<<8) | final[13]; to64(p,l,4); p += 4;
+        l = (final[ 2]<<16) | (final[ 8]<<8) | final[14]; to64(p,l,4); p += 4;
+        l = (final[ 3]<<16) | (final[ 9]<<8) | final[15]; to64(p,l,4); p += 4;
+        l = (final[ 4]<<16) | (final[10]<<8) | final[ 5]; to64(p,l,4); p += 4;
+        l =                    final[11]                ; to64(p,l,2); p += 2;
+        *p = '\0';
+
+        /* Don't leave anything around in vm they could use. */
+        memset(final, 0, sizeof final);
+
+        return passwd;
+}
+
diff --git a/src/lib/libc/include/ctype_private.h b/src/lib/libc/include/ctype_private.h
new file mode 100644
index 0000000000..39cc792ea4
--- /dev/null
+++ b/src/lib/libc/include/ctype_private.h
@@ -0,0 +1,7 @@
+/* $OpenBSD: ctype_private.h,v 1.1 2005/08/08 05:53:00 espie Exp $ */
+/* Written by Marc Espie, public domain */
+#define CTYPE_NUM_CHARS       256
+extern const char _C_ctype_[];
+extern const short _C_toupper_[];
+extern const short _C_tolower_[];
+
diff --git a/src/lib/libc/include/namespace.h b/src/lib/libc/include/namespace.h
new file mode 100644
index 0000000000..4a51f15ddf
--- /dev/null
+++ b/src/lib/libc/include/namespace.h
@@ -0,0 +1,18 @@
+/*      $OpenBSD: namespace.h,v 1.2 1996/08/19 08:28:08 tholo Exp $     */
+
+#define catclose        _catclose
+#define catgets         _catgets
+#define catopen         _catopen
+#define err             _err
+#define errx            _errx
+#define strtoq          _strtoq
+#define strtouq         _strtouq
+#define sys_errlist     _sys_errlist
+#define sys_nerr        _sys_nerr
+#define sys_siglist     _sys_siglist
+#define verr            _verr
+#define verrx           _verrx
+#define vwarn           _vwarn
+#define vwarnx          _vwarnx
+#define warn            _warn
+#define warnx           _warnx
diff --git a/src/lib/libc/include/thread_private.h b/src/lib/libc/include/thread_private.h
new file mode 100644
index 0000000000..673fb9c6a6
--- /dev/null
+++ b/src/lib/libc/include/thread_private.h
@@ -0,0 +1,175 @@
+/* $OpenBSD: thread_private.h,v 1.25 2011/10/16 06:29:56 guenther Exp $ */
+
+/* PUBLIC DOMAIN: No Rights Reserved. Marco S Hyman <marc@snafu.org> */
+
+#ifndef _THREAD_PRIVATE_H_
+#define _THREAD_PRIVATE_H_
+
+/*
+ * This file defines the thread library interface to libc.  Thread
+ * libraries must implement the functions described here for proper
+ * inter-operation with libc.   libc contains weak versions of the
+ * described functions for operation in a non-threaded environment.
+ */
+
+/*
+ * This variable is 0 until a second thread is created.
+ */
+extern int __isthreaded;
+
+/*
+ * Weak symbols are used in libc so that the thread library can
+ * efficiently wrap libc functions.
+ * 
+ * Use WEAK_NAME(n) to get a libc-private name for n (_weak_n),
+ *     WEAK_ALIAS(n) to generate the weak symbol n pointing to _weak_n,
+ *     WEAK_PROTOTYPE(n) to generate a prototype for _weak_n (based on n).
+ */
+#define WEAK_NAME(name)         __CONCAT(_weak_,name)
+#define WEAK_ALIAS(name)        __weak_alias(name, WEAK_NAME(name))
+#ifdef __GNUC__
+#define WEAK_PROTOTYPE(name)    __typeof__(name) WEAK_NAME(name)
+#else
+#define WEAK_PROTOTYPE(name)    /* typeof() only in gcc */
+#endif
+
+/*
+ * Ditto for hand-written syscall stubs:
+ * 
+ * Use STUB_NAME(n) to get the strong name of the stub: _thread_sys_n
+ *     STUB_ALIAS(n) to generate the weak symbol n pointing to _thread_sys_n,
+ *     STUB_PROTOTYPE(n) to generate a prototype for _thread_sys_n (based on n).
+ */
+#define STUB_NAME(name)         __CONCAT(_thread_sys_,name)
+#define STUB_ALIAS(name)        __weak_alias(name, STUB_NAME(name))
+#ifdef __GNUC__
+#define STUB_PROTOTYPE(name)    __typeof__(name) STUB_NAME(name)
+#else
+#define STUB_PROTOTYPE(name)    /* typeof() only in gcc */
+#endif
+
+/*
+ * helper macro to make unique names in the thread namespace
+ */
+#define __THREAD_NAME(name)     __CONCAT(_thread_tagname_,name)
+
+/*
+ * helper functions that exist as (weak) null functions in libc and
+ * (strong) functions in the thread library.   These functions:
+ *
+ * _thread_tag_lock:
+ *      lock the mutex associated with the given tag.   If the given
+ *      tag is NULL a tag is first allocated.
+ *
+ * _thread_tag_unlock:
+ *      unlock the mutex associated with the given tag.   If the given
+ *      tag is NULL a tag is first allocated.
+ *
+ * _thread_tag_storage:
+ *      return a pointer to per thread instance of data associated
+ *      with the given tag.  If the given tag is NULL a tag is first
+ *      allocated.
+ *
+ * _thread_mutex_lock:
+ *      lock the given mutex. If the given mutex is NULL,
+ *      rely on rthreads/pthreads implementation to initialize
+ *      the mutex before locking.
+ *
+ * _thread_mutex_unlock:
+ *      unlock the given mutex.
+ *
+ * _thread_mutex_destroy:
+ *      destroy the given mutex.
+ */
+void    _thread_tag_lock(void **);
+void    _thread_tag_unlock(void **);
+void   *_thread_tag_storage(void **, void *, size_t, void *);
+void    _thread_mutex_lock(void **);
+void    _thread_mutex_unlock(void **);
+void    _thread_mutex_destroy(void **);
+
+/*
+ * Macros used in libc to access thread mutex, keys, and per thread storage.
+ * _THREAD_PRIVATE_KEY and _THREAD_PRIVATE_MUTEX are different macros for
+ * historical reasons.   They do the same thing, define a static variable
+ * keyed by 'name' that identifies a mutex and a key to identify per thread
+ * data.
+ */
+#define _THREAD_PRIVATE_KEY(name)                                       \
+        static void *__THREAD_NAME(name)
+#define _THREAD_PRIVATE_MUTEX(name)                                     \
+        static void *__THREAD_NAME(name)
+#define _THREAD_PRIVATE_MUTEX_LOCK(name)                                \
+        _thread_tag_lock(&(__THREAD_NAME(name)))
+#define _THREAD_PRIVATE_MUTEX_UNLOCK(name)                              \
+        _thread_tag_unlock(&(__THREAD_NAME(name)))
+#define _THREAD_PRIVATE(keyname, storage, error)                        \
+        _thread_tag_storage(&(__THREAD_NAME(keyname)), &(storage),      \
+                            sizeof (storage), error)
+
+/*
+ * Macros used in libc to access mutexes.
+ */
+#define _MUTEX_LOCK(mutex)                                              \
+        do {                                                            \
+                if (__isthreaded)                                       \
+                        _thread_mutex_lock(mutex);                      \
+        } while (0)
+#define _MUTEX_UNLOCK(mutex)                                            \
+        do {                                                            \
+                if (__isthreaded)                                       \
+                        _thread_mutex_unlock(mutex);                    \
+        } while (0)
+#define _MUTEX_DESTROY(mutex)                                           \
+        do {                                                            \
+                if (__isthreaded)                                       \
+                        _thread_mutex_destroy(mutex);                   \
+        } while (0)
+
+/*
+ * Resolver code is special cased in that it uses global keys.
+ */
+extern void *__THREAD_NAME(_res);
+extern void *__THREAD_NAME(_res_ext);
+extern void *__THREAD_NAME(serv_mutex);
+
+/*
+ * malloc lock/unlock prototypes and definitions
+ */
+void    _thread_malloc_lock(void);
+void    _thread_malloc_unlock(void);
+
+#define _MALLOC_LOCK()          do {                                    \
+                                        if (__isthreaded)               \
+                                                _thread_malloc_lock();  \
+                                } while (0)
+#define _MALLOC_UNLOCK()        do {                                    \
+                                        if (__isthreaded)               \
+                                                _thread_malloc_unlock();\
+                                } while (0)
+
+void    _thread_atexit_lock(void);
+void    _thread_atexit_unlock(void);
+
+#define _ATEXIT_LOCK()          do {                                    \
+                                        if (__isthreaded)               \
+                                                _thread_atexit_lock();  \
+                                } while (0)
+#define _ATEXIT_UNLOCK()        do {                                    \
+                                        if (__isthreaded)               \
+                                                _thread_atexit_unlock();\
+                                } while (0)
+
+void    _thread_arc4_lock(void);
+void    _thread_arc4_unlock(void);
+
+#define _ARC4_LOCK()            do {                                    \
+                                        if (__isthreaded)               \
+                                                _thread_arc4_lock();    \
+                                } while (0)
+#define _ARC4_UNLOCK()          do {                                    \
+                                        if (__isthreaded)               \
+                                                _thread_arc4_unlock();\
+                                } while (0)
+
+#endif /* _THREAD_PRIVATE_H_ */
diff --git a/src/lib/libc/net/Makefile.inc b/src/lib/libc/net/Makefile.inc
new file mode 100644
index 0000000000..f4153bbfb4
--- /dev/null
+++ b/src/lib/libc/net/Makefile.inc
@@ -0,0 +1,98 @@
+#       $OpenBSD: Makefile.inc,v 1.51 2014/04/07 17:57:56 schwarze Exp $
+
+# net sources
+.PATH: ${LIBCSRCDIR}/arch/${MACHINE_CPU}/net ${LIBCSRCDIR}/net
+
+CFLAGS+=-DRESOLVSORT
+
+SRCS+=  base64.c freeaddrinfo.c gai_strerror.c getaddrinfo.c gethostnamadr.c \
+        getifaddrs.c getnameinfo.c getnetbyaddr.c getnetbyname.c getnetent.c \
+        getnetnamadr.c getpeereid.c getproto.c getprotoent.c getprotoname.c \
+        getservbyname.c getservbyport.c getservent.c getrrsetbyname.c \
+        herror.c if_indextoname.c if_nameindex.c if_nametoindex.c inet_addr.c \
+        inet_lnaof.c inet_makeaddr.c inet_neta.c inet_netof.c inet_network.c \
+        inet_net_ntop.c inet_net_pton.c inet_ntoa.c inet_ntop.c inet_pton.c \
+        linkaddr.c rcmd.c ruserok.c rresvport.c recv.c res_comp.c res_data.c \
+        res_debug.c res_debug_syms.c res_init.c res_mkquery.c res_query.c \
+        res_random.c res_send.c send.c sethostent.c ethers.c rcmdsh.c
+
+# IPv6
+SRCS+=  ip6opt.c rthdr.c vars6.c
+
+# machine-dependent net sources
+# m-d Makefile.inc must include sources for:
+#       htonl() htons() ntohl() ntohs()
+
+.include "${LIBCSRCDIR}/arch/${MACHINE_CPU}/net/Makefile.inc"
+
+MAN+=   byteorder.3 ethers.3 gai_strerror.3 getaddrinfo.3 gethostbyname.3 \
+        getifaddrs.3 getnameinfo.3 getnetent.3 getpeereid.3 getprotoent.3 \
+        getrrsetbyname.3 getservent.3 if_indextoname.3 inet.3 \
+        inet_net.3 inet6_option_space.3 inet6_rthdr_space.3 \
+        inet6_opt_init.3 inet6_rth_space.3 link_addr.3 \
+        rcmd.3 rcmdsh.3 resolver.3
+
+MLINKS+=byteorder.3 htonl.3 byteorder.3 htons.3 byteorder.3 ntohl.3 \
+        byteorder.3 ntohs.3 byteorder.3 htobe16.3 byteorder.3 htobe32.3 \
+        byteorder.3 htobe64.3 byteorder.3 betoh16.3 byteorder.3 betoh32.3 \
+        byteorder.3 betoh64.3 byteorder.3 htole16.3 byteorder.3 htole32.3 \
+        byteorder.3 htole64.3 byteorder.3 letoh16.3 byteorder.3 letoh32.3 \
+        byteorder.3 letoh64.3 byteorder.3 swap16.3 byteorder.3 swap32.3 \
+        byteorder.3 swap64.3
+MLINKS+=ethers.3 ether_aton.3 ethers.3 ether_hostton.3 ethers.3 ether_line.3 \
+        ethers.3 ether_ntoa.3 ethers.3 ether_ntohost.3
+MLINKS+=getaddrinfo.3 freeaddrinfo.3
+MLINKS+=gethostbyname.3 endhostent.3 gethostbyname.3 gethostbyaddr.3 \
+        gethostbyname.3 sethostent.3 gethostbyname.3 gethostent.3 \
+        gethostbyname.3 herror.3 gethostbyname.3 gethostbyname2.3 \
+        gethostbyname.3 hstrerror.3
+MLINKS+=getifaddrs.3 freeifaddrs.3
+MLINKS+=getnetent.3 endnetent.3 getnetent.3 getnetbyaddr.3 \
+        getnetent.3 getnetbyname.3 getnetent.3 setnetent.3
+MLINKS+=getprotoent.3 endprotoent.3 getprotoent.3 getprotobyname.3 \
+        getprotoent.3 getprotobynumber.3 getprotoent.3 setprotoent.3 \
+        getprotoent.3 getprotoent_r.3 getprotoent.3 getprotobyname_r.3 \
+        getprotoent.3 getprotobynumber_r.3 getprotoent.3 setprotoent_r.3 \
+        getprotoent.3 endprotoent_r.3
+MLINKS+=getservent.3 endservent.3 getservent.3 getservbyname.3 \
+        getservent.3 getservbyport.3 getservent.3 setservent.3 \
+        getservent.3 getservent_r.3 getservent.3 getservbyname_r.3 \
+        getservent.3 getservbyport_r.3 getservent.3 setservent_r.3 \
+        getservent.3 endservent_r.3
+MLINKS+= if_indextoname.3 if_nametoindex.3 if_indextoname.3 if_nameindex.3 \
+        if_indextoname.3 if_freenameindex.3
+MLINKS+=inet.3 inet_addr.3 inet.3 inet_aton.3 \
+        inet.3 inet_lnaof.3 inet.3 inet_makeaddr.3 inet.3 inet_netof.3 \
+        inet.3 inet_network.3 inet.3 inet_ntoa.3 \
+        inet.3 inet_ntop.3 inet.3 inet_pton.3
+MLINKS+=inet_net.3 inet_net_ntop.3 inet_net.3 inet_net_pton.3
+MLINKS+=link_addr.3 link_ntoa.3
+MLINKS+=rcmd.3 iruserok.3 rcmd.3 rresvport.3 rcmd.3 ruserok.3 \
+        rcmd.3 rresvport_af.3 rcmd.3 rcmd_af.3 rcmd.3 iruserok_sa.3
+MLINKS+=resolver.3 dn_comp.3 resolver.3 dn_expand.3 resolver.3 res_init.3 \
+        resolver.3 res_mkquery.3 resolver.3 res_send.3 resolver.3 res_query.3 \
+        resolver.3 res_search.3
+MLINKS+=getrrsetbyname.3 freerrset.3
+MLINKS+=inet6_option_space.3 inet6_option_init.3 \
+        inet6_option_space.3 inet6_option_append.3 \
+        inet6_option_space.3 inet6_option_alloc.3 \
+        inet6_option_space.3 inet6_option_next.3 \
+        inet6_option_space.3 inet6_option_find.3
+MLINKS+=inet6_rthdr_space.3 inet6_rthdr_init.3 \
+        inet6_rthdr_space.3 inet6_rthdr_add.3 \
+        inet6_rthdr_space.3 inet6_rthdr_lasthop.3 \
+        inet6_rthdr_space.3 inet6_rthdr_reverse.3 \
+        inet6_rthdr_space.3 inet6_rthdr_segments.3 \
+        inet6_rthdr_space.3 inet6_rthdr_getaddr.3 \
+        inet6_rthdr_space.3 inet6_rthdr_getflags.3
+MLINKS+=inet6_opt_init.3 inet6_opt_append.3 \
+        inet6_opt_init.3 inet6_opt_finish.3 \
+        inet6_opt_init.3 inet6_opt_set_val.3 \
+        inet6_opt_init.3 inet6_opt_next.3 \
+        inet6_opt_init.3 inet6_opt_find.3 \
+        inet6_opt_init.3 inet6_opt_get_val.3
+MLINKS+=inet6_rth_space.3 inet6_rth_init.3 \
+        inet6_rth_space.3 inet6_rth_add.3 \
+        inet6_rth_space.3 inet6_rth_reverse.3 \
+        inet6_rth_space.3 inet6_rth_segments.3 \
+        inet6_rth_space.3 inet6_rth_getaddr.3 \
diff --git a/src/lib/libc/net/base64.c b/src/lib/libc/net/base64.c
new file mode 100644
index 0000000000..7c3d1d319f
--- /dev/null
+++ b/src/lib/libc/net/base64.c
@@ -0,0 +1,316 @@
+/*      $OpenBSD: base64.c,v 1.7 2013/12/31 02:32:56 tedu Exp $ */
+
+/*
+ * Copyright (c) 1996 by Internet Software Consortium.
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND INTERNET SOFTWARE CONSORTIUM DISCLAIMS
+ * ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL INTERNET SOFTWARE
+ * CONSORTIUM BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
+ * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
+ * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS
+ * ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
+ * SOFTWARE.
+ */
+
+/*
+ * Portions Copyright (c) 1995 by International Business Machines, Inc.
+ *
+ * International Business Machines, Inc. (hereinafter called IBM) grants
+ * permission under its copyrights to use, copy, modify, and distribute this
+ * Software with or without fee, provided that the above copyright notice and
+ * all paragraphs of this notice appear in all copies, and that the name of IBM
+ * not be used in connection with the marketing of any product incorporating
+ * the Software or modifications thereof, without specific, written prior
+ * permission.
+ *
+ * To the extent it has a right to do so, IBM grants an immunity from suit
+ * under its patents, if any, for the use, sale or manufacture of products to
+ * the extent that such products are used for performing Domain Name System
+ * dynamic updates in TCP/IP networks by means of the Software.  No immunity is
+ * granted for any product per se or for any other function of any product.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", AND IBM DISCLAIMS ALL WARRANTIES,
+ * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+ * PARTICULAR PURPOSE.  IN NO EVENT SHALL IBM BE LIABLE FOR ANY SPECIAL,
+ * DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER ARISING
+ * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE, EVEN
+ * IF IBM IS APPRISED OF THE POSSIBILITY OF SUCH DAMAGES.
+ */
+
+#include <sys/types.h>
+#include <sys/param.h>
+#include <sys/socket.h>
+#include <netinet/in.h>
+#include <arpa/inet.h>
+#include <arpa/nameser.h>
+
+#include <ctype.h>
+#include <resolv.h>
+#include <stdio.h>
+
+#include <stdlib.h>
+#include <string.h>
+
+static const char Base64[] =
+        "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
+static const char Pad64 = '=';
+
+/* (From RFC1521 and draft-ietf-dnssec-secext-03.txt)
+   The following encoding technique is taken from RFC 1521 by Borenstein
+   and Freed.  It is reproduced here in a slightly edited form for
+   convenience.
+
+   A 65-character subset of US-ASCII is used, enabling 6 bits to be
+   represented per printable character. (The extra 65th character, "=",
+   is used to signify a special processing function.)
+
+   The encoding process represents 24-bit groups of input bits as output
+   strings of 4 encoded characters. Proceeding from left to right, a
+   24-bit input group is formed by concatenating 3 8-bit input groups.
+   These 24 bits are then treated as 4 concatenated 6-bit groups, each
+   of which is translated into a single digit in the base64 alphabet.
+
+   Each 6-bit group is used as an index into an array of 64 printable
+   characters. The character referenced by the index is placed in the
+   output string.
+
+                         Table 1: The Base64 Alphabet
+
+      Value Encoding  Value Encoding  Value Encoding  Value Encoding
+          0 A            17 R            34 i            51 z
+          1 B            18 S            35 j            52 0
+          2 C            19 T            36 k            53 1
+          3 D            20 U            37 l            54 2
+          4 E            21 V            38 m            55 3
+          5 F            22 W            39 n            56 4
+          6 G            23 X            40 o            57 5
+          7 H            24 Y            41 p            58 6
+          8 I            25 Z            42 q            59 7
+          9 J            26 a            43 r            60 8
+         10 K            27 b            44 s            61 9
+         11 L            28 c            45 t            62 +
+         12 M            29 d            46 u            63 /
+         13 N            30 e            47 v
+         14 O            31 f            48 w         (pad) =
+         15 P            32 g            49 x
+         16 Q            33 h            50 y
+
+   Special processing is performed if fewer than 24 bits are available
+   at the end of the data being encoded.  A full encoding quantum is
+   always completed at the end of a quantity.  When fewer than 24 input
+   bits are available in an input group, zero bits are added (on the
+   right) to form an integral number of 6-bit groups.  Padding at the
+   end of the data is performed using the '=' character.
+
+   Since all base64 input is an integral number of octets, only the
+         -------------------------------------------------                       
+   following cases can arise:
+   
+       (1) the final quantum of encoding input is an integral
+           multiple of 24 bits; here, the final unit of encoded
+           output will be an integral multiple of 4 characters
+           with no "=" padding,
+       (2) the final quantum of encoding input is exactly 8 bits;
+           here, the final unit of encoded output will be two
+           characters followed by two "=" padding characters, or
+       (3) the final quantum of encoding input is exactly 16 bits;
+           here, the final unit of encoded output will be three
+           characters followed by one "=" padding character.
+   */
+
+int
+b64_ntop(src, srclength, target, targsize)
+        u_char const *src;
+        size_t srclength;
+        char *target;
+        size_t targsize;
+{
+        size_t datalength = 0;
+        u_char input[3];
+        u_char output[4];
+        int i;
+
+        while (2 < srclength) {
+                input[0] = *src++;
+                input[1] = *src++;
+                input[2] = *src++;
+                srclength -= 3;
+
+                output[0] = input[0] >> 2;
+                output[1] = ((input[0] & 0x03) << 4) + (input[1] >> 4);
+                output[2] = ((input[1] & 0x0f) << 2) + (input[2] >> 6);
+                output[3] = input[2] & 0x3f;
+
+                if (datalength + 4 > targsize)
+                        return (-1);
+                target[datalength++] = Base64[output[0]];
+                target[datalength++] = Base64[output[1]];
+                target[datalength++] = Base64[output[2]];
+                target[datalength++] = Base64[output[3]];
+        }
+    
+        /* Now we worry about padding. */
+        if (0 != srclength) {
+                /* Get what's left. */
+                input[0] = input[1] = input[2] = '\0';
+                for (i = 0; i < srclength; i++)
+                        input[i] = *src++;
+        
+                output[0] = input[0] >> 2;
+                output[1] = ((input[0] & 0x03) << 4) + (input[1] >> 4);
+                output[2] = ((input[1] & 0x0f) << 2) + (input[2] >> 6);
+
+                if (datalength + 4 > targsize)
+                        return (-1);
+                target[datalength++] = Base64[output[0]];
+                target[datalength++] = Base64[output[1]];
+                if (srclength == 1)
+                        target[datalength++] = Pad64;
+                else
+                        target[datalength++] = Base64[output[2]];
+                target[datalength++] = Pad64;
+        }
+        if (datalength >= targsize)
+                return (-1);
+        target[datalength] = '\0';      /* Returned value doesn't count \0. */
+        return (datalength);
+}
+
+/* skips all whitespace anywhere.
+   converts characters, four at a time, starting at (or after)
+   src from base - 64 numbers into three 8 bit bytes in the target area.
+   it returns the number of data bytes stored at the target, or -1 on error.
+ */
+
+int
+b64_pton(src, target, targsize)
+        char const *src;
+        u_char *target;
+        size_t targsize;
+{
+        int tarindex, state, ch;
+        u_char nextbyte;
+        char *pos;
+
+        state = 0;
+        tarindex = 0;
+
+        while ((ch = (unsigned char)*src++) != '\0') {
+                if (isspace(ch))        /* Skip whitespace anywhere. */
+                        continue;
+
+                if (ch == Pad64)
+                        break;
+
+                pos = strchr(Base64, ch);
+                if (pos == 0)           /* A non-base64 character. */
+                        return (-1);
+
+                switch (state) {
+                case 0:
+                        if (target) {
+                                if (tarindex >= targsize)
+                                        return (-1);
+                                target[tarindex] = (pos - Base64) << 2;
+                        }
+                        state = 1;
+                        break;
+                case 1:
+                        if (target) {
+                                if (tarindex >= targsize)
+                                        return (-1);
+                                target[tarindex]   |=  (pos - Base64) >> 4;
+                                nextbyte = ((pos - Base64) & 0x0f) << 4;
+                                if (tarindex + 1 < targsize)
+                                        target[tarindex+1] = nextbyte;
+                                else if (nextbyte)
+                                        return (-1);
+                        }
+                        tarindex++;
+                        state = 2;
+                        break;
+                case 2:
+                        if (target) {
+                                if (tarindex >= targsize)
+                                        return (-1);
+                                target[tarindex]   |=  (pos - Base64) >> 2;
+                                nextbyte = ((pos - Base64) & 0x03) << 6;
+                                if (tarindex + 1 < targsize)
+                                        target[tarindex+1] = nextbyte;
+                                else if (nextbyte)
+                                        return (-1);
+                        }
+                        tarindex++;
+                        state = 3;
+                        break;
+                case 3:
+                        if (target) {
+                                if (tarindex >= targsize)
+                                        return (-1);
+                                target[tarindex] |= (pos - Base64);
+                        }
+                        tarindex++;
+                        state = 0;
+                        break;
+                }
+        }
+
+        /*
+         * We are done decoding Base-64 chars.  Let's see if we ended
+         * on a byte boundary, and/or with erroneous trailing characters.
+         */
+
+        if (ch == Pad64) {                      /* We got a pad char. */
+                ch = (unsigned char)*src++;     /* Skip it, get next. */
+                switch (state) {
+                case 0:         /* Invalid = in first position */
+                case 1:         /* Invalid = in second position */
+                        return (-1);
+
+                case 2:         /* Valid, means one byte of info */
+                        /* Skip any number of spaces. */
+                        for (; ch != '\0'; ch = (unsigned char)*src++)
+                                if (!isspace(ch))
+                                        break;
+                        /* Make sure there is another trailing = sign. */
+                        if (ch != Pad64)
+                                return (-1);
+                        ch = (unsigned char)*src++;             /* Skip the = */
+                        /* Fall through to "single trailing =" case. */
+                        /* FALLTHROUGH */
+
+                case 3:         /* Valid, means two bytes of info */
+                        /*
+                         * We know this char is an =.  Is there anything but
+                         * whitespace after it?
+                         */
+                        for (; ch != '\0'; ch = (unsigned char)*src++)
+                                if (!isspace(ch))
+                                        return (-1);
+
+                        /*
+                         * Now make sure for cases 2 and 3 that the "extra"
+                         * bits that slopped past the last full byte were
+                         * zeros.  If we don't check them, they become a
+                         * subliminal channel.
+                         */
+                        if (target && tarindex < targsize &&
+                            target[tarindex] != 0)
+                                return (-1);
+                }
+        } else {
+                /*
+                 * We ended by seeing the end of the string.  Make sure we
+                 * have no partial bytes lying around.
+                 */
+                if (state != 0)
+                        return (-1);
+        }
+
+        return (tarindex);
+}
diff --git a/src/lib/libc/net/byteorder.3 b/src/lib/libc/net/byteorder.3
new file mode 100644
index 0000000000..53f9fd071d
--- /dev/null
+++ b/src/lib/libc/net/byteorder.3
@@ -0,0 +1,206 @@
+.\"     $OpenBSD: byteorder.3,v 1.18 2013/06/05 03:39:22 tedu Exp $
+.\"
+.\" Copyright (c) 1983, 1991, 1993
+.\"     The Regents of the University of California.  All rights reserved.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\" 3. Neither the name of the University nor the names of its contributors
+.\"    may be used to endorse or promote products derived from this software
+.\"    without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.Dd $Mdocdate: June 5 2013 $
+.Dt BYTEORDER 3
+.Os
+.Sh NAME
+.Nm htonl ,
+.Nm htons ,
+.Nm ntohl ,
+.Nm ntohs ,
+.Nm htobe64 ,
+.Nm htobe32 ,
+.Nm htobe16 ,
+.Nm betoh64 ,
+.Nm betoh32 ,
+.Nm betoh16 ,
+.Nm htole64 ,
+.Nm htole32 ,
+.Nm htole16 ,
+.Nm letoh64 ,
+.Nm letoh32 ,
+.Nm letoh16 ,
+.Nm swap64 ,
+.Nm swap32 ,
+.Nm swap16
+.Nd convert values between different byte orderings
+.Sh SYNOPSIS
+.In sys/types.h
+.Ft u_int32_t
+.Fn htonl "u_int32_t host32"
+.Ft u_int16_t
+.Fn htons "u_int16_t host16"
+.Ft u_int32_t
+.Fn ntohl "u_int32_t net32"
+.Ft u_int16_t
+.Fn ntohs "u_int16_t net16"
+.Ft u_int64_t
+.Fn htobe64 "u_int64_t host64"
+.Ft u_int32_t
+.Fn htobe32 "u_int32_t host32"
+.Ft u_int16_t
+.Fn htobe16 "u_int16_t host16"
+.Ft u_int64_t
+.Fn betoh64 "u_int64_t big64"
+.Ft u_int32_t
+.Fn betoh32 "u_int32_t big32"
+.Ft u_int16_t
+.Fn betoh16 "u_int16_t big16"
+.Ft u_int64_t
+.Fn htole64 "u_int64_t host64"
+.Ft u_int32_t
+.Fn htole32 "u_int32_t host32"
+.Ft u_int16_t
+.Fn htole16 "u_int16_t host16"
+.Ft u_int64_t
+.Fn letoh64 "u_int64_t little64"
+.Ft u_int32_t
+.Fn letoh32 "u_int32_t little32"
+.Ft u_int16_t
+.Fn letoh16 "u_int16_t little16"
+.Ft u_int64_t
+.Fn swap64 "u_int64_t val64"
+.Ft u_int32_t
+.Fn swap32 "u_int32_t val32"
+.Ft u_int16_t
+.Fn swap16 "u_int16_t val16"
+.Sh DESCRIPTION
+These routines convert 16, 32 and 64-bit quantities between different
+byte orderings.
+The
+.Dq swap
+functions reverse the byte ordering of
+the given quantity; the others convert either from/to the native
+byte order used by the host to/from either little- or big-endian (a.k.a
+network) order.
+.Pp
+Apart from the swap functions, the names can be described by this form:
+{src-order}to{dst-order}{size}.
+Both {src-order} and {dst-order} can take the following forms:
+.Pp
+.Bl -tag -width "be " -offset indent -compact
+.It h
+Host order.
+.It n
+Network order (big-endian).
+.It be
+Big-endian (most significant byte first).
+.It le
+Little-endian (least significant byte first).
+.El
+.Pp
+One of the specified orderings must be
+.Sq h .
+{size} will take these forms:
+.Pp
+.Bl -tag -width "32 " -offset indent -compact
+.It l
+Long (32-bit, used in conjunction with forms involving
+.Sq n ) .
+.It s
+Short (16-bit, used in conjunction with forms involving
+.Sq n ) .
+.It 16
+16-bit.
+.It 32
+32-bit.
+.It 64
+64-bit.
+.El
+.Pp
+The swap functions are of the form: swap{size}.
+.Pp
+Names involving
+.Sq n
+convert quantities between network
+byte order and host byte order.
+The last letter
+.Pf ( Sq s
+or
+.Sq l )
+is a mnemonic
+for the traditional names for such quantities,
+.Li short
+and
+.Li long ,
+respectively.
+Today, the C concept of
+.Li short
+and
+.Li long
+integers need not coincide with this traditional misunderstanding.
+On machines which have a byte order which is the same as the network
+order, routines are defined as null macros.
+.Pp
+The functions involving either
+.Dq be ,
+.Dq le ,
+or
+.Dq swap
+use the numbers
+16, 32, or 64 for specifying the bitwidth of the quantities they operate on.
+Currently all supported architectures are either big- or little-endian
+so either the
+.Dq be
+or
+.Dq le
+variants are implemented as null macros.
+.Pp
+The routines mentioned above which have either {src-order} or {dst-order}
+set to
+.Sq n
+are most often used in
+conjunction with Internet addresses and ports as returned by
+.Xr gethostbyname 3
+and
+.Xr getservent 3 .
+.Sh SEE ALSO
+.Xr gethostbyname 3 ,
+.Xr getservent 3
+.Sh STANDARDS
+The
+.Fn htonl ,
+.Fn htons ,
+.Fn ntohl ,
+and
+.Fn ntohs
+functions conform to
+.St -p1003.1 .
+The other functions are extensions that should not be used when portability
+is required.
+.Sh HISTORY
+The
+.Nm byteorder
+functions appeared in
+.Bx 4.2 .
+.Sh BUGS
+On the vax, alpha, amd64, i386, and some mips and arm architectures,
+bytes are handled backwards from most everyone else in the world.
+This is not expected to be fixed in the near future.
diff --git a/src/lib/libc/net/ethers.3 b/src/lib/libc/net/ethers.3
new file mode 100644
index 0000000000..c254a120a7
--- /dev/null
+++ b/src/lib/libc/net/ethers.3
@@ -0,0 +1,124 @@
+.\"     $OpenBSD: ethers.3,v 1.23 2014/03/18 03:58:49 lteo Exp $
+.\"
+.\" Written by roland@frob.com.  Public domain.
+.\"
+.Dd $Mdocdate: March 18 2014 $
+.Dt ETHERS 3
+.Os
+.Sh NAME
+.Nm ether_aton ,
+.Nm ether_ntoa ,
+.Nm ether_ntohost ,
+.Nm ether_hostton ,
+.Nm ether_line
+.Nd get ethers entry
+.Sh SYNOPSIS
+.In sys/types.h
+.In sys/socket.h
+.In net/if.h
+.In netinet/in.h
+.In netinet/if_ether.h
+.Ft char *
+.Fn ether_ntoa "struct ether_addr *e"
+.Ft struct ether_addr *
+.Fn ether_aton "const char *s"
+.Ft int
+.Fn ether_ntohost "char *hostname" "struct ether_addr *e"
+.Ft int
+.Fn ether_hostton "const char *hostname" "struct ether_addr *e"
+.Ft int
+.Fn ether_line "const char *l" "struct ether_addr *e" "char *hostname"
+.Sh DESCRIPTION
+Ethernet addresses are represented by the
+following structure:
+.Bd -literal -offset indent
+struct ether_addr {
+        u_int8_t  ether_addr_octet[ETHER_ADDR_LEN];
+};
+.Ed
+.Pp
+The
+.Fn ether_ntoa
+function converts this structure into an
+.Tn ASCII
+string of the form
+.Dq xx:xx:xx:xx:xx:xx ,
+consisting of 6 hexadecimal numbers separated
+by colons.
+It returns a pointer to a static buffer that is reused for each call.
+The
+.Fn ether_aton
+converts an
+.Tn ASCII
+string of the same form and to a structure
+containing the 6 octets of the address.
+It returns a pointer to a static structure that is reused for each call.
+.Fn ether_aton
+will return NULL if the string does not represent a valid address.
+.Pp
+The
+.Fn ether_ntohost
+and
+.Fn ether_hostton
+functions interrogate the database mapping host names to Ethernet
+addresses,
+.Pa /etc/ethers .
+The
+.Fn ether_ntohost
+function looks up the given Ethernet address and writes the associated
+host name into the character buffer passed.
+This buffer should be
+.Dv MAXHOSTNAMELEN
+characters in size.
+The
+.Fn ether_hostton
+function looks up the given host name and writes the associated
+Ethernet address into the structure passed.
+Both functions return
+zero if they find the requested host name or address, and \-1 if not.
+.Pp
+Each call reads
+.Pa /etc/ethers
+from the beginning; if a
+.Ql +
+appears alone on a line in the file, then
+.Fn ether_hostton
+will consult the
+.Pa ethers.byname
+YP map, and
+.Fn ether_ntohost
+will consult the
+.Pa ethers.byaddr
+YP map.
+.Pp
+The
+.Fn ether_line
+function parses a line from the
+.Pa /etc/ethers
+file and fills in the passed
+.Li struct ether_addr
+and character buffer with the Ethernet address and host name on the line.
+It returns zero if the line was successfully parsed and \-1 if not.
+The character buffer should be
+.Dv MAXHOSTNAMELEN
+characters in size.
+.Sh FILES
+.Bl -tag -width /etc/ethers -compact
+.It Pa /etc/ethers
+.El
+.Sh SEE ALSO
+.Xr ethers 5
+.Sh HISTORY
+The
+.Fn ether_ntoa ,
+.Fn ether_aton ,
+.Fn ether_ntohost ,
+.Fn ether_hostton ,
+and
+.Fn ether_line
+functions were adopted from SunOS and appeared in
+.Nx 0.9b .
+.Sh BUGS
+The data space used by these functions is static; if future use
+requires the data, it should be copied before any subsequent calls to
+these functions overwrite it.
diff --git a/src/lib/libc/net/ethers.c b/src/lib/libc/net/ethers.c
new file mode 100644
index 0000000000..af31bb8e60
--- /dev/null
+++ b/src/lib/libc/net/ethers.c
@@ -0,0 +1,234 @@
+/*      $OpenBSD: ethers.c,v 1.21 2013/11/24 23:51:28 deraadt Exp $     */
+
+/*
+ * Copyright (c) 1998 Todd C. Miller <Todd.Miller@courtesan.com>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+/* 
+ * ethers(3) a la Sun.
+ * Originally Written by Roland McGrath <roland@frob.com> 10/14/93.
+ * Substantially modified by Todd C. Miller <Todd.Miller@courtesan.com>
+ */
+
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <net/if.h>
+#include <netinet/in.h>
+#include <netinet/if_ether.h>
+#include <sys/param.h>
+#include <paths.h>
+#include <errno.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <ctype.h>
+#ifdef YP
+#include <rpcsvc/ypclnt.h>
+#endif
+
+#ifndef _PATH_ETHERS
+#define _PATH_ETHERS    "/etc/ethers"
+#endif
+
+static char * _ether_aton(const char *, struct ether_addr *);
+
+char *
+ether_ntoa(struct ether_addr *e)
+{
+        static char a[] = "xx:xx:xx:xx:xx:xx";
+
+        (void)snprintf(a, sizeof a, "%02x:%02x:%02x:%02x:%02x:%02x",
+            e->ether_addr_octet[0], e->ether_addr_octet[1],
+            e->ether_addr_octet[2], e->ether_addr_octet[3],
+            e->ether_addr_octet[4], e->ether_addr_octet[5]);
+
+        return (a);
+}
+
+static char *
+_ether_aton(const char *s, struct ether_addr *e)
+{
+        int i;
+        long l;
+        char *pp;
+
+        while (isspace((unsigned char)*s))
+                s++;
+
+        /* expect 6 hex octets separated by ':' or space/NUL if last octet */
+        for (i = 0; i < 6; i++) {
+                l = strtol(s, &pp, 16);
+                if (pp == s || l > 0xFF || l < 0)
+                        return (NULL);
+                if (!(*pp == ':' ||
+                    (i == 5 && (isspace((unsigned char)*pp) ||
+                    *pp == '\0'))))
+                        return (NULL);
+                e->ether_addr_octet[i] = (u_char)l;
+                s = pp + 1;
+        }
+
+        /* return character after the octets ala strtol(3) */
+        return (pp);
+}
+
+struct ether_addr *
+ether_aton(const char *s)
+{
+        static struct ether_addr n;
+
+        return (_ether_aton(s, &n) ? &n : NULL);
+}
+
+int
+ether_ntohost(char *hostname, struct ether_addr *e)
+{
+        FILE *f; 
+        char buf[BUFSIZ+1], *p;
+        size_t len;
+        struct ether_addr try;
+#ifdef YP
+        char trybuf[sizeof("xx:xx:xx:xx:xx:xx")];
+        int trylen;
+#endif
+
+#ifdef YP
+        snprintf(trybuf, sizeof trybuf, "%x:%x:%x:%x:%x:%x", 
+            e->ether_addr_octet[0], e->ether_addr_octet[1],
+            e->ether_addr_octet[2], e->ether_addr_octet[3],
+            e->ether_addr_octet[4], e->ether_addr_octet[5]);
+        trylen = strlen(trybuf);
+#endif
+
+        f = fopen(_PATH_ETHERS, "r");
+        if (f == NULL)
+                return (-1);
+        while ((p = fgetln(f, &len)) != NULL) {
+                if (p[len-1] == '\n')
+                        len--;
+                if (len > sizeof(buf) - 2)
+                        continue;
+                (void)memcpy(buf, p, len);
+                buf[len] = '\n';        /* code assumes newlines later on */
+                buf[len+1] = '\0';
+#ifdef YP
+                /* A + in the file means try YP now.  */
+                if (!strncmp(buf, "+\n", sizeof(buf))) {
+                        char *ypbuf, *ypdom;
+                        int ypbuflen;
+
+                        if (yp_get_default_domain(&ypdom))
+                                continue;
+                        if (yp_match(ypdom, "ethers.byaddr", trybuf,
+                            trylen, &ypbuf, &ypbuflen))
+                                continue;
+                        if (ether_line(ypbuf, &try, hostname) == 0) {
+                                free(ypbuf);
+                                (void)fclose(f);
+                                return (0);
+                        }
+                        free(ypbuf);
+                        continue;
+                }
+#endif
+                if (ether_line(buf, &try, hostname) == 0 &&
+                    memcmp((void *)&try, (void *)e, sizeof(try)) == 0) {
+                        (void)fclose(f);
+                        return (0);
+                }     
+        }
+        (void)fclose(f);
+        errno = ENOENT;
+        return (-1);
+}
+
+int
+ether_hostton(const char *hostname, struct ether_addr *e)
+{
+        FILE *f;
+        char buf[BUFSIZ+1], *p;
+        char try[MAXHOSTNAMELEN];
+        size_t len;
+#ifdef YP
+        int hostlen = strlen(hostname);
+#endif
+
+        f = fopen(_PATH_ETHERS, "r");
+        if (f==NULL)
+                return (-1);
+
+        while ((p = fgetln(f, &len)) != NULL) {
+                if (p[len-1] == '\n')
+                        len--;
+                if (len > sizeof(buf) - 2)
+                        continue;
+                memcpy(buf, p, len);
+                buf[len] = '\n';        /* code assumes newlines later on */
+                buf[len+1] = '\0';
+#ifdef YP
+                /* A + in the file means try YP now.  */
+                if (!strncmp(buf, "+\n", sizeof(buf))) {
+                        char *ypbuf, *ypdom;
+                        int ypbuflen;
+
+                        if (yp_get_default_domain(&ypdom))
+                                continue;
+                        if (yp_match(ypdom, "ethers.byname", hostname, hostlen,
+                            &ypbuf, &ypbuflen))
+                                continue;
+                        if (ether_line(ypbuf, e, try) == 0) {
+                                free(ypbuf);
+                                (void)fclose(f);
+                                return (0);
+                        }
+                        free(ypbuf);
+                        continue;
+                }
+#endif
+                if (ether_line(buf, e, try) == 0 && strcmp(hostname, try) == 0) {
+                        (void)fclose(f);
+                        return (0);
+                }
+        }
+        (void)fclose(f);
+        errno = ENOENT;
+        return (-1);
+}
+
+int
+ether_line(const char *line, struct ether_addr *e, char *hostname)
+{
+        char *p;
+        size_t n;
+
+        /* Parse "xx:xx:xx:xx:xx:xx" */
+        if ((p = _ether_aton(line, e)) == NULL || (*p != ' ' && *p != '\t'))
+                goto bad;
+
+        /* Now get the hostname */
+        while (isspace((unsigned char)*p))
+                p++;
+        if (*p == '\0')
+                goto bad;
+        n = strcspn(p, " \t\n");
+        if (n >= MAXHOSTNAMELEN)
+                goto bad;
+        strlcpy(hostname, p, n + 1);
+        return (0);
+
+bad:
+        errno = EINVAL;
+        return (-1);
+}
diff --git a/src/lib/libc/net/freeaddrinfo.c b/src/lib/libc/net/freeaddrinfo.c
new file mode 100644
index 0000000000..58702d0b18
--- /dev/null
+++ b/src/lib/libc/net/freeaddrinfo.c
@@ -0,0 +1,50 @@
+/*      $OpenBSD: freeaddrinfo.c,v 1.6 2005/03/25 13:24:11 otto Exp $   */
+
+/*
+ * Copyright (c) 1996, 1997, 1998, 1999, Craig Metz, All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *      This product includes software developed by Craig Metz and
+ *      by other contributors.
+ * 4. Neither the name of the author nor the names of contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <stdlib.h>
+#include <netdb.h>
+
+void
+freeaddrinfo(struct addrinfo *ai)
+{
+        struct addrinfo *p;
+
+        do {
+                p = ai;
+                ai = ai->ai_next;
+                if (p->ai_canonname)
+                        free(p->ai_canonname);
+                free((void *)p);
+        } while (ai);
+}
diff --git a/src/lib/libc/net/gai_strerror.3 b/src/lib/libc/net/gai_strerror.3
new file mode 100644
index 0000000000..e0373eb91e
--- /dev/null
+++ b/src/lib/libc/net/gai_strerror.3
@@ -0,0 +1,95 @@
+.\"     $OpenBSD: gai_strerror.3,v 1.9 2014/01/21 03:15:45 schwarze Exp $
+.\"     $KAME: gai_strerror.3,v 1.1 2005/01/05 03:04:47 itojun Exp $
+.\"
+.\" Copyright (C) 2004  Internet Systems Consortium, Inc. ("ISC")
+.\" Copyright (C) 2000, 2001  Internet Software Consortium.
+.\"
+.\" Permission to use, copy, modify, and distribute this software for any
+.\" purpose with or without fee is hereby granted, provided that the above
+.\" copyright notice and this permission notice appear in all copies.
+.\"
+.\" THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH
+.\" REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
+.\" AND FITNESS.  IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT,
+.\" INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
+.\" LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
+.\" OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+.\" PERFORMANCE OF THIS SOFTWARE.
+.\"
+.Dd $Mdocdate: January 21 2014 $
+.Dt GAI_STRERROR 3
+.Os
+.Sh NAME
+.Nm gai_strerror
+.Nd get error message string from EAI_xxx error code
+.Sh SYNOPSIS
+.In sys/types.h
+.In sys/socket.h
+.In netdb.h
+.Ft "const char *"
+.Fn gai_strerror "int ecode"
+.Sh DESCRIPTION
+The
+.Fn gai_strerror
+function returns an error message string corresponding to the error code
+returned by
+.Xr getaddrinfo 3
+or
+.Xr getnameinfo 3 .
+.Pp
+The following error codes and their meaning are defined in
+.In netdb.h :
+.Pp
+.Bl -tag -width "EAI_ADDRFAMILYXX" -offset indent -compact
+.It Dv EAI_ADDRFAMILY
+address family for
+.Fa hostname
+not supported
+.It Dv EAI_AGAIN
+temporary failure in name resolution
+.It Dv EAI_BADFLAGS
+invalid value for
+.Fa ai_flags
+.It Dv EAI_BADHINTS
+invalid value for
+.Fa hints
+.It Dv EAI_FAIL
+non-recoverable failure in name resolution
+.It Dv EAI_FAMILY
+.Fa ai_family
+not supported.
+.It Dv EAI_MEMORY
+memory allocation failure
+.It Dv EAI_NODATA
+no address associated with
+.Fa hostname
+.It Dv EAI_NONAME
+.Fa hostname
+or
+.Fa servname
+not provided, or not known
+.It Dv EAI_OVERFLOW
+argument buffer overflow
+.It Dv EAI_PROTOCOL
+resolved protocol is unknown
+.It Dv EAI_SERVICE
+.Fa servname
+not supported for
+.Fa ai_socktype
+.It Dv EAI_SOCKTYPE
+.Fa ai_socktype
+not supported
+.It Dv EAI_SYSTEM
+system error returned in
+.Va errno
+.El
+.Sh RETURN VALUES
+.Fn gai_strerror
+returns a pointer to the error message string corresponding to
+.Fa ecode .
+If
+.Fa ecode
+is out of range, an implementation-specific error message string is returned.
+.Sh SEE ALSO
+.Xr getaddrinfo 3 ,
+.Xr getnameinfo 3
diff --git a/src/lib/libc/net/gai_strerror.c b/src/lib/libc/net/gai_strerror.c
new file mode 100644
index 0000000000..f4126413f8
--- /dev/null
+++ b/src/lib/libc/net/gai_strerror.c
@@ -0,0 +1,78 @@
+/*      $OpenBSD: gai_strerror.c,v 1.7 2009/06/02 16:47:50 jasper Exp $ */
+
+/*
+ * Copyright (c) 1997-1999, Craig Metz, All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *      This product includes software developed by Craig Metz and
+ *      by other contributors.
+ * 4. Neither the name of the author nor the names of contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+/* gai_strerror() v1.38 */
+
+#include <sys/types.h>
+#include <netdb.h>
+#include <errno.h>
+
+const char *
+gai_strerror(int errnum)
+{
+        switch (errnum) {
+        case 0:
+                return "no error";
+        case EAI_BADFLAGS:
+                return "invalid value for ai_flags";
+        case EAI_NONAME:
+                return "name or service is not known";
+        case EAI_AGAIN:
+                return "temporary failure in name resolution";
+        case EAI_FAIL:
+                return "non-recoverable failure in name resolution";
+        case EAI_NODATA:
+                return "no address associated with name";
+        case EAI_FAMILY:
+                return "ai_family not supported";
+        case EAI_SOCKTYPE:
+                return "ai_socktype not supported";
+        case EAI_SERVICE:
+                return "service not supported for ai_socktype";
+        case EAI_ADDRFAMILY:
+                return "address family for name not supported";
+        case EAI_MEMORY:
+                return "memory allocation failure";
+        case EAI_SYSTEM:
+                return "system error";
+        case EAI_BADHINTS:
+                return "invalid value for hints";
+        case EAI_PROTOCOL:
+                return "resolved protocol is unknown";
+        case EAI_OVERFLOW:
+                return "argument buffer overflow";
+        default:
+                return "unknown/invalid error";
+        }
+}
diff --git a/src/lib/libc/net/getaddrinfo.3 b/src/lib/libc/net/getaddrinfo.3
new file mode 100644
index 0000000000..db4417ab35
--- /dev/null
+++ b/src/lib/libc/net/getaddrinfo.3
@@ -0,0 +1,465 @@
+.\"     $OpenBSD: getaddrinfo.3,v 1.54 2014/01/21 03:15:45 schwarze Exp $
+.\"     $KAME: getaddrinfo.3,v 1.36 2005/01/05 03:23:05 itojun Exp $
+.\"
+.\" Copyright (C) 2004  Internet Systems Consortium, Inc. ("ISC")
+.\" Copyright (C) 2000, 2001  Internet Software Consortium.
+.\"
+.\" Permission to use, copy, modify, and distribute this software for any
+.\" purpose with or without fee is hereby granted, provided that the above
+.\" copyright notice and this permission notice appear in all copies.
+.\"
+.\" THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH
+.\" REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
+.\" AND FITNESS.  IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT,
+.\" INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
+.\" LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
+.\" OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+.\" PERFORMANCE OF THIS SOFTWARE.
+.\"
+.Dd $Mdocdate: January 21 2014 $
+.Dt GETADDRINFO 3
+.Os
+.Sh NAME
+.Nm getaddrinfo ,
+.Nm freeaddrinfo
+.Nd host and service name to socket address structure
+.Sh SYNOPSIS
+.In sys/types.h
+.In sys/socket.h
+.In netdb.h
+.Ft int
+.Fn getaddrinfo "const char *hostname" "const char *servname" \
+    "const struct addrinfo *hints" "struct addrinfo **res"
+.Ft void
+.Fn freeaddrinfo "struct addrinfo *ai"
+.Sh DESCRIPTION
+The
+.Fn getaddrinfo
+function is used to get a list of
+.Tn IP
+addresses and port numbers for host
+.Fa hostname
+and service
+.Fa servname .
+It is a replacement for and provides more flexibility than the
+.Xr gethostbyname 3
+and
+.Xr getservbyname 3
+functions.
+.Pp
+The
+.Fa hostname
+and
+.Fa servname
+arguments are either pointers to NUL-terminated strings or the null pointer.
+An acceptable value for
+.Fa hostname
+is either a valid host name or a numeric host address string consisting
+of a dotted decimal IPv4 address or an IPv6 address.
+The
+.Fa servname
+is either a decimal port number or a service name listed in
+.Xr services 5 .
+At least one of
+.Fa hostname
+and
+.Fa servname
+must be non-null.
+.Pp
+.Fa hints
+is an optional pointer to a
+.Li struct addrinfo ,
+as defined by
+.In netdb.h :
+.Bd -literal
+struct addrinfo {
+        int ai_flags;           /* input flags */
+        int ai_family;          /* protocol family for socket */
+        int ai_socktype;        /* socket type */
+        int ai_protocol;        /* protocol for socket */
+        socklen_t ai_addrlen;   /* length of socket-address */
+        struct sockaddr *ai_addr; /* socket-address for socket */
+        char *ai_canonname;     /* canonical name for service location */
+        struct addrinfo *ai_next; /* pointer to next in list */
+};
+.Ed
+.Pp
+This structure can be used to provide hints concerning the type of socket
+that the caller supports or wishes to use.
+The caller can supply the following structure elements in
+.Fa hints :
+.Bl -tag -width "ai_socktypeXX"
+.It Fa ai_family
+The protocol family that should be used.
+When
+.Fa ai_family
+is set to
+.Dv PF_UNSPEC ,
+it means the caller will accept any protocol family supported by the
+operating system.
+.It Fa ai_socktype
+Denotes the type of socket that is wanted:
+.Dv SOCK_STREAM ,
+.Dv SOCK_DGRAM ,
+or
+.Dv SOCK_RAW .
+When
+.Fa ai_socktype
+is zero the caller will accept any socket type.
+.It Fa ai_protocol
+Indicates which transport protocol is desired,
+.Dv IPPROTO_UDP
+or
+.Dv IPPROTO_TCP .
+If
+.Fa ai_protocol
+is zero the caller will accept any protocol.
+.It Fa ai_flags
+.Fa ai_flags
+is formed by
+.Tn OR Ns 'ing
+the following values:
+.Bl -tag -width "AI_CANONNAMEXX"
+.It Dv AI_CANONNAME
+If the
+.Dv AI_CANONNAME
+bit is set, a successful call to
+.Fn getaddrinfo
+will return a NUL-terminated string containing the canonical name
+of the specified host name in the
+.Fa ai_canonname
+element of the first
+.Li addrinfo
+structure returned.
+.It Dv AI_FQDN
+If the
+.Dv AI_FQDN
+bit is set, a successful call to
+.Fn getaddrinfo
+will return a NUL-terminated string containing the fully qualified domain name
+of the specified host name in the
+.Fa ai_canonname
+element of the first
+.Li addrinfo
+structure returned.
+.Pp
+This is different from the
+.Dv AI_CANONNAME
+bit flag that returns the canonical name registered in DNS,
+which may be different from the fully qualified domain name
+that the host name resolved to.
+Only one of the
+.Dv AI_FQDN
+and
+.Dv AI_CANONNAME
+bits can be set.
+.It Dv AI_NUMERICHOST
+If the
+.Dv AI_NUMERICHOST
+bit is set, it indicates that
+.Fa hostname
+should be treated as a numeric string defining an IPv4 or IPv6 address
+and no name resolution should be attempted.
+.It Dv AI_NUMERICSERV
+If the
+.Dv AI_NUMERICSERV
+bit is set, it indicates that
+.Fa servname
+should be treated as a numeric port string
+and no service name resolution should be attempted.
+.It Dv AI_PASSIVE
+If the
+.Dv AI_PASSIVE
+bit is set it indicates that the returned socket address structure
+is intended for use in a call to
+.Xr bind 2 .
+In this case, if the
+.Fa hostname
+argument is the null pointer, then the IP address portion of the
+socket address structure will be set to
+.Dv INADDR_ANY
+for an IPv4 address or
+.Dv IN6ADDR_ANY_INIT
+for an IPv6 address.
+.Pp
+If the
+.Dv AI_PASSIVE
+bit is not set, the returned socket address structure will be ready
+for use in a call to
+.Xr connect 2
+for a connection-oriented protocol or
+.Xr connect 2 ,
+.Xr sendto 2 ,
+or
+.Xr sendmsg 2
+if a connectionless protocol was chosen.
+The
+.Tn IP
+address portion of the socket address structure will be set to the
+loopback address if
+.Fa hostname
+is the null pointer and
+.Dv AI_PASSIVE
+is not set.
+.El
+.El
+.Pp
+All other elements of the
+.Li addrinfo
+structure passed via
+.Fa hints
+must be zero or the null pointer.
+.Pp
+If
+.Fa hints
+is the null pointer,
+.Fn getaddrinfo
+behaves as if the caller provided a
+.Li struct addrinfo
+with
+.Fa ai_family
+set to
+.Dv PF_UNSPEC
+and all other elements set to zero or
+.Dv NULL .
+.Pp
+After a successful call to
+.Fn getaddrinfo ,
+.Fa *res
+is a pointer to a linked list of one or more
+.Li addrinfo
+structures.
+The list can be traversed by following the
+.Fa ai_next
+pointer in each
+.Li addrinfo
+structure until a null pointer is encountered.
+The three members
+.Fa ai_family ,
+.Fa ai_socktype ,
+and
+.Fa ai_protocol
+in each returned
+.Li addrinfo
+structure are suitable for a call to
+.Xr socket 2 .
+For each
+.Li addrinfo
+structure in the list, the
+.Fa ai_addr
+member points to a filled-in socket address structure of length
+.Fa ai_addrlen .
+.Pp
+This implementation of
+.Fn getaddrinfo
+allows numeric IPv6 address notation with scope identifier,
+as documented in RFC 4007.
+By appending the percent character and scope identifier to addresses,
+one can fill the
+.Li sin6_scope_id
+field for addresses.
+This would make management of scoped addresses easier
+and allows cut-and-paste input of scoped addresses.
+.Pp
+At this moment the code supports only link-local addresses with the format.
+The scope identifier is hardcoded to the name of the hardware interface
+associated
+with the link
+.Po
+such as
+.Li ne0
+.Pc .
+An example is
+.Dq Li fe80::1%ne0 ,
+which means
+.Do
+.Li fe80::1
+on the link associated with the
+.Li ne0
+interface
+.Dc .
+.Pp
+The current implementation assumes a one-to-one relationship between
+the interface and link, which is not necessarily true from the specification.
+.Pp
+All of the information returned by
+.Fn getaddrinfo
+is dynamically allocated: the
+.Li addrinfo
+structures themselves as well as the socket address structures and
+the canonical host name strings included in the
+.Li addrinfo
+structures.
+.Pp
+Memory allocated for the dynamically allocated structures created by
+a successful call to
+.Fn getaddrinfo
+is released by the
+.Fn freeaddrinfo
+function.
+The
+.Fa ai
+pointer should be an
+.Li addrinfo
+structure created by a call to
+.Fn getaddrinfo .
+.Sh RETURN VALUES
+.Fn getaddrinfo
+returns zero on success or one of the error codes listed in
+.Xr gai_strerror 3
+if an error occurs.
+If an error occurs, no memory is allocated by
+.Fn getaddrinfo ,
+therefore it is not necessary to release the
+.Li addrinfo
+structure(s).
+.Sh EXAMPLES
+The following code tries to connect to
+.Dq Li www.kame.net
+service
+.Dq Li www
+via a stream socket.
+It loops through all the addresses available, regardless of address family.
+If the destination resolves to an IPv4 address, it will use an
+.Dv AF_INET
+socket.
+Similarly, if it resolves to IPv6, an
+.Dv AF_INET6
+socket is used.
+Observe that there is no hardcoded reference to a particular address family.
+The code works even if
+.Fn getaddrinfo
+returns addresses that are not IPv4/v6.
+.Bd -literal -offset indent
+struct addrinfo hints, *res, *res0;
+int error;
+int save_errno;
+int s;
+const char *cause = NULL;
+
+memset(&hints, 0, sizeof(hints));
+hints.ai_family = PF_UNSPEC;
+hints.ai_socktype = SOCK_STREAM;
+error = getaddrinfo("www.kame.net", "www", &hints, &res0);
+if (error)
+        errx(1, "%s", gai_strerror(error));
+s = -1;
+for (res = res0; res; res = res->ai_next) {
+        s = socket(res->ai_family, res->ai_socktype,
+            res->ai_protocol);
+        if (s == -1) {
+                cause = "socket";
+                continue;
+        }
+
+        if (connect(s, res->ai_addr, res->ai_addrlen) == -1) {
+                cause = "connect";
+                save_errno = errno;
+                close(s);
+                errno = save_errno;
+                s = -1;
+                continue;
+        }
+
+        break;  /* okay we got one */
+}
+if (s == -1)
+        err(1, "%s", cause);
+freeaddrinfo(res0);
+.Ed
+.Pp
+The following example tries to open a wildcard listening socket onto service
+.Dq Li www ,
+for all the address families available.
+.Bd -literal -offset indent
+struct addrinfo hints, *res, *res0;
+int error;
+int save_errno;
+int s[MAXSOCK];
+int nsock;
+const char *cause = NULL;
+
+memset(&hints, 0, sizeof(hints));
+hints.ai_family = PF_UNSPEC;
+hints.ai_socktype = SOCK_STREAM;
+hints.ai_flags = AI_PASSIVE;
+error = getaddrinfo(NULL, "www", &hints, &res0);
+if (error)
+        errx(1, "%s", gai_strerror(error));
+nsock = 0;
+for (res = res0; res && nsock < MAXSOCK; res = res->ai_next) {
+        s[nsock] = socket(res->ai_family, res->ai_socktype,
+            res->ai_protocol);
+        if (s[nsock] == -1) {
+                cause = "socket";
+                continue;
+        }
+
+        if (bind(s[nsock], res->ai_addr, res->ai_addrlen) == -1) {
+                cause = "bind";
+                save_errno = errno;
+                close(s[nsock]);
+                errno = save_errno;
+                continue;
+        }
+        (void) listen(s[nsock], 5);
+
+        nsock++;
+}
+if (nsock == 0)
+        err(1, "%s", cause);
+freeaddrinfo(res0);
+.Ed
+.Sh SEE ALSO
+.Xr bind 2 ,
+.Xr connect 2 ,
+.Xr send 2 ,
+.Xr socket 2 ,
+.Xr gai_strerror 3 ,
+.Xr gethostbyname 3 ,
+.Xr getnameinfo 3 ,
+.Xr getservbyname 3 ,
+.Xr resolver 3 ,
+.Xr hosts 5 ,
+.Xr resolv.conf 5 ,
+.Xr services 5 ,
+.Xr hostname 7 ,
+.Xr named 8
+.Rs
+.%A Craig Metz
+.%B Proceedings of the Freenix Track: 2000 USENIX Annual Technical Conference
+.%D June 2000
+.%T Protocol Independence Using the Sockets API
+.Re
+.Sh STANDARDS
+The
+.Fn getaddrinfo
+function is defined by the
+.St -p1003.1g-2000
+draft specification and documented in RFC 3493.
+.Pp
+The
+.Dv AI_FQDN
+flag bit first appeared in Windows 7.
+.Pp
+.Rs
+.%A R. Gilligan
+.%A S. Thomson
+.%A J. Bound
+.%A J. McCann
+.%A W. Stevens
+.%D February 2003
+.%R RFC 3493
+.%T Basic Socket Interface Extensions for IPv6
+.Re
+.Pp
+.Rs
+.%A S. Deering
+.%A B. Haberman
+.%A T. Jinmei
+.%A E. Nordmark
+.%A B. Zill
+.%D March 2005
+.%R RFC 4007
+.%T IPv6 Scoped Address Architecture
+.Re
diff --git a/src/lib/libc/net/gethostbyname.3 b/src/lib/libc/net/gethostbyname.3
new file mode 100644
index 0000000000..206750a2c3
--- /dev/null
+++ b/src/lib/libc/net/gethostbyname.3
@@ -0,0 +1,297 @@
+.\"     $OpenBSD: gethostbyname.3,v 1.26 2013/06/05 03:39:23 tedu Exp $
+.\"
+.\" Copyright (c) 1983, 1987, 1991, 1993
+.\"     The Regents of the University of California.  All rights reserved.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\" 3. Neither the name of the University nor the names of its contributors
+.\"    may be used to endorse or promote products derived from this software
+.\"    without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.Dd $Mdocdate: June 5 2013 $
+.Dt GETHOSTBYNAME 3
+.Os
+.Sh NAME
+.Nm gethostbyname ,
+.Nm gethostbyname2 ,
+.Nm gethostbyaddr ,
+.Nm gethostent ,
+.Nm sethostent ,
+.Nm endhostent ,
+.Nm hstrerror ,
+.Nm herror
+.Nd get network host entry
+.Sh SYNOPSIS
+.In netdb.h
+.Vt extern int h_errno ;
+.Ft struct hostent *
+.Fn gethostbyname "const char *name"
+.Ft struct hostent *
+.Fn gethostbyname2 "const char *name" "int af"
+.Ft struct hostent *
+.Fn gethostbyaddr "const void *addr" "socklen_t len" "int af"
+.Ft struct hostent *
+.Fn gethostent void
+.Ft void
+.Fn sethostent "int stayopen"
+.Ft void
+.Fn endhostent void
+.Ft void
+.Fn herror "const char *string"
+.Ft const char *
+.Fn hstrerror "int err"
+.Sh DESCRIPTION
+The
+.Fn gethostbyname ,
+.Fn gethostbyname2 ,
+and
+.Fn gethostbyaddr
+functions each return a pointer to an object with the following structure
+describing an Internet host referenced by name or by address, respectively.
+This structure contains either information obtained from the name server (i.e.,
+.Xr resolver 3
+and
+.Xr named 8 ) ,
+broken-out fields from a line in
+.Pa /etc/hosts ,
+or database entries supplied by the
+.Xr yp 8
+system.
+.Xr resolv.conf 5
+describes how the particular database is chosen.
+.Bd -literal -offset indent
+struct  hostent {
+        char    *h_name;        /* official name of host */
+        char    **h_aliases;    /* alias list */
+        int     h_addrtype;     /* host address type */
+        int     h_length;       /* length of address */
+        char    **h_addr_list;  /* list of returned addresses */
+};
+#define h_addr  h_addr_list[0]  /* address, for backward compat */
+.Ed
+.Pp
+The members of this structure are:
+.Bl -tag -width h_addr_list
+.It Fa h_name
+Official name of the host.
+.It Fa h_aliases
+A null-terminated array of alternate names for the host.
+.It Fa h_addrtype
+The type of address being returned.
+.It Fa h_length
+The length, in bytes, of the address.
+.It Fa h_addr_list
+A null-terminated array of network addresses for the host.
+Host addresses are returned in network byte order.
+.It Fa h_addr
+The first address in
+.Fa h_addr_list ;
+this is for backward compatibility.
+.El
+.Pp
+The function
+.Fn gethostbyname
+will search for the named host in the current domain and its parents
+using the search lookup semantics detailed in
+.Xr resolv.conf 5
+and
+.Xr hostname 7 .
+.Pp
+.Fn gethostbyname2
+is an advanced form of
+.Fn gethostbyname
+which allows lookups in address families other than
+.Dv AF_INET .
+Currently, the only supported address family besides
+.Dv AF_INET
+is
+.Dv AF_INET6 .
+.Pp
+The
+.Fn gethostbyaddr
+function will search for the specified address of length
+.Fa len
+in the address family
+.Fa af .
+The only address family currently supported is
+.Dv AF_INET .
+.Pp
+The
+.Fn sethostent
+function may be used to request the use of a connected
+.Tn TCP
+socket for queries.
+If the
+.Fa stayopen
+flag is non-zero,
+this sets the option to send all queries to the name server using
+.Tn TCP
+and to retain the connection after each call to
+.Fn gethostbyname
+or
+.Fn gethostbyaddr .
+Otherwise, queries are performed using
+.Tn UDP
+datagrams.
+.Pp
+The
+.Fn endhostent
+function closes the
+.Tn TCP
+connection.
+.Pp
+The
+.Fn herror
+function prints an error message describing the failure.
+If its argument
+.Fa string
+is non-null,
+it is prepended to the message string and separated from it by a colon
+.Pq Ql \&:
+and a space.
+The error message is printed with a trailing newline.
+The contents of the error message is the same as that returned by
+.Fn hstrerror
+with argument
+.Fa h_errno .
+.Sh ENVIRONMENT
+.Bl -tag -width HOSTALIASES
+.It HOSTALIASES
+A file containing local host aliases.
+See
+.Xr hostname 7
+for more information.
+.It RES_OPTIONS
+A list of options to override the resolver's internal defaults.
+See
+.Xr resolver 3
+for more information.
+.El
+.Sh FILES
+.Bl -tag -width /etc/resolv.conf -compact
+.It Pa /etc/hosts
+.It Pa /etc/resolv.conf
+.El
+.Sh DIAGNOSTICS
+Error return status from
+.Fn gethostbyname ,
+.Fn gethostbyname2 ,
+and
+.Fn gethostbyaddr
+is indicated by return of a null pointer.
+The external integer
+.Va h_errno
+may then be checked to see whether this is a temporary failure
+or an invalid or unknown host.
+.Pp
+The variable
+.Va h_errno
+can have the following values:
+.Bl -tag -width HOST_NOT_FOUND
+.It Dv HOST_NOT_FOUND
+No such host is known.
+.It Dv TRY_AGAIN
+This is usually a temporary error
+and means that the local server did not receive
+a response from an authoritative server.
+A retry at some later time may succeed.
+.It Dv NO_RECOVERY
+Some unexpected server failure was encountered.
+This is a non-recoverable error.
+.It Dv NO_DATA
+The requested name is valid but does not have an IP address;
+this is not a temporary error.
+This means that the name is known to the name server but there is no address
+associated with this name.
+Another type of request to the name server using this domain name
+will result in an answer;
+for example, a mail-forwarder may be registered for this domain.
+.It Dv NETDB_INTERNAL
+An internal error occurred.
+This may occur when an address family other than
+.Dv AF_INET
+or
+.Dv AF_INET6
+is specified or when a resource is unable to be allocated.
+.It Dv NETDB_SUCCESS
+The function completed successfully.
+.El
+.Sh SEE ALSO
+.Xr getaddrinfo 3 ,
+.Xr getnameinfo 3 ,
+.Xr resolver 3 ,
+.Xr hosts 5 ,
+.Xr resolv.conf 5 ,
+.Xr hostname 7 ,
+.Xr named 8
+.Sh HISTORY
+The
+.Fn herror
+function appeared in
+.Bx 4.3 .
+The
+.Fn endhostent ,
+.Fn gethostbyaddr ,
+.Fn gethostbyname ,
+.Fn gethostent ,
+and
+.Fn sethostent
+functions appeared in
+.Bx 4.2 .
+.Sh CAVEATS
+If the search routines in
+.Xr resolv.conf 5
+decide to read the
+.Pa /etc/hosts
+file,
+.Fn gethostent
+and other functions will
+read the next line of the file,
+re-opening the file if necessary.
+.Pp
+The
+.Fn sethostent
+function opens and/or rewinds the file
+.Pa /etc/hosts .
+If the
+.Fa stayopen
+argument is non-zero, the file will not be closed after each call to
+.Fn gethostbyname ,
+.Fn gethostbyname2 ,
+or
+.Fn gethostbyaddr .
+.Pp
+The
+.Fn endhostent
+function closes the file.
+.Sh BUGS
+These functions use static data storage;
+if the data is needed for future use, it should be
+copied before any subsequent calls overwrite it.
+.Pp
+Only the Internet
+address formats are currently understood.
+.Pp
+YP does not support any address families other than
+.Dv AF_INET
+and uses
+the traditional database format.
diff --git a/src/lib/libc/net/getifaddrs.3 b/src/lib/libc/net/getifaddrs.3
new file mode 100644
index 0000000000..0b3538302a
--- /dev/null
+++ b/src/lib/libc/net/getifaddrs.3
@@ -0,0 +1,160 @@
+.\"     $OpenBSD: getifaddrs.3,v 1.19 2014/04/07 17:57:56 schwarze Exp $
+.\"     BSDI    getifaddrs.3,v 2.5 2000/02/23 14:51:59 dab Exp
+.\"
+.\" Copyright (c) 1995, 1999
+.\"     Berkeley Software Design, Inc.  All rights reserved.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY Berkeley Software Design, Inc. ``AS IS'' AND
+.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED.  IN NO EVENT SHALL Berkeley Software Design, Inc. BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.Dd $Mdocdate: April 7 2014 $
+.Dt GETIFADDRS 3
+.Os
+.Sh NAME
+.Nm getifaddrs ,
+.Nm freeifaddrs
+.Nd get interface addresses
+.Sh SYNOPSIS
+.In sys/types.h
+.In sys/socket.h
+.In ifaddrs.h
+.Ft int
+.Fn getifaddrs "struct ifaddrs **ifap"
+.Ft void
+.Fn freeifaddrs "struct ifaddrs *ifap"
+.Sh DESCRIPTION
+The
+.Fn getifaddrs
+function stores a reference to a linked list of the network interfaces
+on the local machine in the memory referenced by
+.Fa ifap .
+The list consists of
+.Nm ifaddrs
+structures, as defined in the include file
+.In ifaddrs.h .
+The
+.Nm ifaddrs
+structure contains at least the following entries:
+.Bd -literal
+    struct ifaddrs   *ifa_next;         /* Pointer to next struct */
+    char             *ifa_name;         /* Interface name */
+    u_int             ifa_flags;        /* Interface flags */
+    struct sockaddr  *ifa_addr;         /* Interface address */
+    struct sockaddr  *ifa_netmask;      /* Interface netmask */
+    struct sockaddr  *ifa_broadaddr;    /* Interface broadcast address */
+    struct sockaddr  *ifa_dstaddr;      /* P2P interface destination */
+    void             *ifa_data;         /* Address specific data */
+.Ed
+.Bl -tag -width ifa_broadaddr
+.It Fa ifa_next
+Contains a pointer to the next structure on the list.
+This field is set to
+.Dv NULL
+in the last structure on the list.
+.It Fa ifa_name
+Contains the interface name.
+.It Fa ifa_flags
+Contains the interface flags, as set by
+.Xr ifconfig 8 .
+.It Fa ifa_addr
+References either the address of the interface or the link level
+address of the interface, if one exists, otherwise it is
+.Dv NULL .
+(The
+.Fa sa_family
+field of the
+.Fa ifa_addr
+field should be consulted to determine the format of the
+.Fa ifa_addr
+address.)
+.It Fa ifa_netmask
+References the netmask associated with
+.Fa ifa_addr ,
+if one is set, otherwise it is
+.Dv NULL .
+.It Fa ifa_broadaddr
+This field, which should only be referenced for non-P2P interfaces,
+references the broadcast address associated with
+.Fa ifa_addr ,
+if one exists, otherwise it is
+.Dv NULL .
+.It Fa ifa_dstaddr
+This field, which should only be referenced for P2P interfaces,
+references the destination address on a P2P interface,
+if one exists, otherwise it is
+.Dv NULL .
+.It Fa ifa_data
+References address family specific data.
+For
+.Dv AF_LINK
+addresses it contains a pointer to the
+.Li struct if_data
+(as defined in include file
+.In net/if.h )
+which contains various interface attributes and statistics.
+For all other address families,
+.Fa ifa_data
+is
+.Dv NULL .
+.El
+.Pp
+The data returned by
+.Fn getifaddrs
+is dynamically allocated and should be freed using
+.Fn freeifaddrs
+when no longer needed.
+.Sh RETURN VALUES
+Upon successful completion, a value of 0 is returned.
+Otherwise, a value of \-1 is returned and
+.Va errno
+is set to indicate the error.
+.Sh ERRORS
+The
+.Fn getifaddrs
+may fail and set
+.Va errno
+for any of the errors specified for the library routines
+.Xr ioctl 2 ,
+.Xr socket 2 ,
+.Xr malloc 3 ,
+or
+.Xr sysctl 3 .
+.Sh SEE ALSO
+.Xr ioctl 2 ,
+.Xr socket 2 ,
+.Xr sysctl 3 ,
+.Xr networking 4 ,
+.Xr ifconfig 8
+.Sh HISTORY
+The
+.Fn getifaddrs
+function first appeared in BSDI
+.Bsx .
+The function has been available on
+.Ox
+since
+.Ox 2.7 .
+.Sh BUGS
+If both
+.In net/if.h
+and
+.In ifaddrs.h
+are being included,
+.In net/if.h
+.Em must
+be included before
+.In ifaddrs.h .
diff --git a/src/lib/libc/net/getifaddrs.c b/src/lib/libc/net/getifaddrs.c
new file mode 100644
index 0000000000..da42a23783
--- /dev/null
+++ b/src/lib/libc/net/getifaddrs.c
@@ -0,0 +1,296 @@
+/*      $OpenBSD: getifaddrs.c,v 1.11 2013/03/20 14:15:56 deraadt Exp $ */
+
+/*
+ * Copyright (c) 1995, 1999
+ *      Berkeley Software Design, Inc.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *
+ * THIS SOFTWARE IS PROVIDED BY Berkeley Software Design, Inc. ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL Berkeley Software Design, Inc. BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ *      BSDI getifaddrs.c,v 2.12 2000/02/23 14:51:59 dab Exp
+ */
+
+#include <sys/types.h>
+#include <sys/ioctl.h>
+#include <sys/socket.h>
+#include <net/if.h>
+#include <sys/param.h>
+#include <net/route.h>
+#include <sys/sysctl.h>
+#include <net/if_dl.h>
+
+#include <errno.h>
+#include <ifaddrs.h>
+#include <stddef.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+#define SALIGN  (sizeof(long) - 1)
+#define SA_RLEN(sa)     ((sa)->sa_len ? (((sa)->sa_len + SALIGN) & ~SALIGN) : (SALIGN + 1))
+
+int
+getifaddrs(struct ifaddrs **pif)
+{
+        int icnt = 1;
+        int dcnt = 0;
+        int ncnt = 0;
+        int mib[6];
+        size_t needed;
+        char *buf = NULL, *bufp;
+        char *next;
+        struct ifaddrs *cif = 0;
+        char *p, *p0;
+        struct rt_msghdr *rtm;
+        struct if_msghdr *ifm;
+        struct ifa_msghdr *ifam;
+        struct sockaddr_dl *dl;
+        struct sockaddr *sa;
+        u_short index = 0;
+        size_t len, alen, dlen;
+        struct ifaddrs *ifa, *ift;
+        int i;
+        char *data;
+        char *names;
+
+        mib[0] = CTL_NET;
+        mib[1] = PF_ROUTE;
+        mib[2] = 0;             /* protocol */
+        mib[3] = 0;             /* wildcard address family */
+        mib[4] = NET_RT_IFLIST;
+        mib[5] = 0;             /* no flags */
+        while (1) {
+                if (sysctl(mib, 6, NULL, &needed, NULL, 0) == -1) {
+                        free(buf);
+                        return (-1);
+                }
+                if (needed == 0)
+                        break;
+                if ((bufp = realloc(buf, needed)) == NULL) {
+                        free(buf);
+                        return (-1);
+                }
+                buf = bufp;
+                if (sysctl(mib, 6, buf, &needed, NULL, 0) == -1) {
+                        if (errno == ENOMEM)
+                                continue;
+                        free(buf);
+                        return (-1);
+                }
+                break;
+        }
+
+        for (next = buf; next < buf + needed; next += rtm->rtm_msglen) {
+                rtm = (struct rt_msghdr *)next;
+                if (rtm->rtm_version != RTM_VERSION)
+                        continue;
+                switch (rtm->rtm_type) {
+                case RTM_IFINFO:
+                        ifm = (struct if_msghdr *)rtm;
+                        if (ifm->ifm_addrs & RTA_IFP) {
+                                index = ifm->ifm_index;
+                                ++icnt;
+                                dl = (struct sockaddr_dl *)(next +
+                                    rtm->rtm_hdrlen);
+                                dcnt += SA_RLEN((struct sockaddr *)dl) +
+                                        ALIGNBYTES;
+                                dcnt += sizeof(ifm->ifm_data);
+                                ncnt += dl->sdl_nlen + 1;
+                        } else
+                                index = 0;
+                        break;
+
+                case RTM_NEWADDR:
+                        ifam = (struct ifa_msghdr *)rtm;
+                        if (index && ifam->ifam_index != index)
+                                abort();        /* XXX abort illegal in library */
+
+#define RTA_MASKS       (RTA_NETMASK | RTA_IFA | RTA_BRD)
+                        if (index == 0 || (ifam->ifam_addrs & RTA_MASKS) == 0)
+                                break;
+                        p = next + rtm->rtm_hdrlen;
+                        ++icnt;
+                        /* Scan to look for length of address */
+                        alen = 0;
+                        for (p0 = p, i = 0; i < RTAX_MAX; i++) {
+                                if ((RTA_MASKS & ifam->ifam_addrs & (1 << i))
+                                    == 0)
+                                        continue;
+                                sa = (struct sockaddr *)p;
+                                len = SA_RLEN(sa);
+                                if (i == RTAX_IFA) {
+                                        alen = len;
+                                        break;
+                                }
+                                p += len;
+                        }
+                        for (p = p0, i = 0; i < RTAX_MAX; i++) {
+                                if ((RTA_MASKS & ifam->ifam_addrs & (1 << i))
+                                    == 0)
+                                        continue;
+                                sa = (struct sockaddr *)p;
+                                len = SA_RLEN(sa);
+                                if (i == RTAX_NETMASK && sa->sa_len == 0)
+                                        dcnt += alen;
+                                else
+                                        dcnt += len;
+                                p += len;
+                        }
+                        break;
+                }
+        }
+
+        if (icnt + dcnt + ncnt == 1) {
+                *pif = NULL;
+                free(buf);
+                return (0);
+        }
+        data = malloc(sizeof(struct ifaddrs) * icnt + dcnt + ncnt);
+        if (data == NULL) {
+                free(buf);
+                return(-1);
+        }
+
+        ifa = (struct ifaddrs *)data;
+        data += sizeof(struct ifaddrs) * icnt;
+        names = data + dcnt;
+
+        memset(ifa, 0, sizeof(struct ifaddrs) * icnt);
+        ift = ifa;
+
+        index = 0;
+        for (next = buf; next < buf + needed; next += rtm->rtm_msglen) {
+                rtm = (struct rt_msghdr *)next;
+                if (rtm->rtm_version != RTM_VERSION)
+                        continue;
+                switch (rtm->rtm_type) {
+                case RTM_IFINFO:
+                        ifm = (struct if_msghdr *)rtm;
+                        if (ifm->ifm_addrs & RTA_IFP) {
+                                index = ifm->ifm_index;
+                                dl = (struct sockaddr_dl *)(next +
+                                    rtm->rtm_hdrlen);
+
+                                cif = ift;
+                                ift->ifa_name = names;
+                                ift->ifa_flags = (int)ifm->ifm_flags;
+                                memcpy(names, dl->sdl_data, dl->sdl_nlen);
+                                names[dl->sdl_nlen] = 0;
+                                names += dl->sdl_nlen + 1;
+
+                                ift->ifa_addr = (struct sockaddr *)data;
+                                memcpy(data, dl,
+                                    ((struct sockaddr *)dl)->sa_len);
+                                data += SA_RLEN((struct sockaddr *)dl);
+
+                                /* ifm_data needs to be aligned */
+                                ift->ifa_data = data = (void *)ALIGN(data);
+                                dlen = rtm->rtm_hdrlen -
+                                    offsetof(struct if_msghdr, ifm_data);
+                                if (dlen > sizeof(ifm->ifm_data))
+                                        dlen = sizeof(ifm->ifm_data);
+                                memcpy(data, &ifm->ifm_data, dlen);
+                                data += sizeof(ifm->ifm_data);
+
+                                ift = (ift->ifa_next = ift + 1);
+                        } else
+                                index = 0;
+                        break;
+
+                case RTM_NEWADDR:
+                        ifam = (struct ifa_msghdr *)rtm;
+                        if (index && ifam->ifam_index != index)
+                                abort();        /* XXX abort illegal in library */
+
+                        if (index == 0 || (ifam->ifam_addrs & RTA_MASKS) == 0)
+                                break;
+                        ift->ifa_name = cif->ifa_name;
+                        ift->ifa_flags = cif->ifa_flags;
+                        ift->ifa_data = NULL;
+                        p = next + rtm->rtm_hdrlen;
+                        /* Scan to look for length of address */
+                        alen = 0;
+                        for (p0 = p, i = 0; i < RTAX_MAX; i++) {
+                                if ((RTA_MASKS & ifam->ifam_addrs & (1 << i))
+                                    == 0)
+                                        continue;
+                                sa = (struct sockaddr *)p;
+                                len = SA_RLEN(sa);
+                                if (i == RTAX_IFA) {
+                                        alen = len;
+                                        break;
+                                }
+                                p += len;
+                        }
+                        for (p = p0, i = 0; i < RTAX_MAX; i++) {
+                                if ((RTA_MASKS & ifam->ifam_addrs & (1 << i))
+                                    == 0)
+                                        continue;
+                                sa = (struct sockaddr *)p;
+                                len = SA_RLEN(sa);
+                                switch (i) {
+                                case RTAX_IFA:
+                                        ift->ifa_addr = (struct sockaddr *)data;
+                                        memcpy(data, p, len);
+                                        data += len;
+                                        break;
+
+                                case RTAX_NETMASK:
+                                        ift->ifa_netmask =
+                                            (struct sockaddr *)data;
+                                        if (sa->sa_len == 0) {
+                                                memset(data, 0, alen);
+                                                data += alen;
+                                                break;
+                                        }
+                                        memcpy(data, p, len);
+                                        data += len;
+                                        break;
+
+                                case RTAX_BRD:
+                                        ift->ifa_broadaddr =
+                                            (struct sockaddr *)data;
+                                        memcpy(data, p, len);
+                                        data += len;
+                                        break;
+                                }
+                                p += len;
+                        }
+
+
+                        ift = (ift->ifa_next = ift + 1);
+                        break;
+                }
+        }
+
+        free(buf);
+        if (--ift >= ifa) {
+                ift->ifa_next = NULL;
+                *pif = ifa;
+        } else {
+                *pif = NULL;
+                free(ifa);
+        }
+        return (0);
+}
+
+void
+freeifaddrs(struct ifaddrs *ifp)
+{
+        free(ifp);
+}
diff --git a/src/lib/libc/net/getnameinfo.3 b/src/lib/libc/net/getnameinfo.3
new file mode 100644
index 0000000000..d023b2523d
--- /dev/null
+++ b/src/lib/libc/net/getnameinfo.3
@@ -0,0 +1,265 @@
+.\"     $OpenBSD: getnameinfo.3,v 1.46 2014/01/21 03:15:45 schwarze Exp $
+.\"     $KAME: getnameinfo.3,v 1.37 2005/01/05 03:23:05 itojun Exp $
+.\"
+.\" Copyright (C) 2004  Internet Systems Consortium, Inc. ("ISC")
+.\" Copyright (C) 2000, 2001  Internet Software Consortium.
+.\"
+.\" Permission to use, copy, modify, and distribute this software for any
+.\" purpose with or without fee is hereby granted, provided that the above
+.\" copyright notice and this permission notice appear in all copies.
+.\"
+.\" THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH
+.\" REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
+.\" AND FITNESS.  IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT,
+.\" INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
+.\" LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
+.\" OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+.\" PERFORMANCE OF THIS SOFTWARE.
+.\"
+.Dd $Mdocdate: January 21 2014 $
+.Dt GETNAMEINFO 3
+.Os
+.Sh NAME
+.Nm getnameinfo
+.Nd socket address structure to hostname and service name
+.Sh SYNOPSIS
+.In sys/types.h
+.In sys/socket.h
+.In netdb.h
+.Ft int
+.Fn getnameinfo "const struct sockaddr *sa" "socklen_t salen" "char *host" \
+    "size_t hostlen" "char *serv" "size_t servlen" "int flags"
+.Sh DESCRIPTION
+The
+.Fn getnameinfo
+function is used to convert a
+.Li sockaddr
+structure to a pair of host name and service strings.
+It is a replacement for and provides more flexibility than the
+.Xr gethostbyaddr 3
+and
+.Xr getservbyport 3
+functions and is the converse of the
+.Xr getaddrinfo 3
+function.
+.Pp
+The
+.Li sockaddr
+structure
+.Fa sa
+should point to either a
+.Li sockaddr_in
+or
+.Li sockaddr_in6
+structure (for IPv4 or IPv6 respectively) that is
+.Fa salen
+bytes long.
+.Pp
+The host and service names associated with
+.Fa sa
+are stored in
+.Fa host
+and
+.Fa serv
+which have length parameters
+.Fa hostlen
+and
+.Fa servlen .
+The maximum value for
+.Fa hostlen
+is
+.Dv NI_MAXHOST
+and
+the maximum value for
+.Fa servlen
+is
+.Dv NI_MAXSERV ,
+as defined by
+.In netdb.h .
+If a length parameter is zero, no string will be stored.
+Otherwise, enough space must be provided to store the
+host name or service string plus a byte for the NUL terminator.
+.Pp
+The
+.Fa flags
+argument is formed by
+.Tn OR Ns 'ing
+the following values:
+.Bl -tag -width "NI_NUMERICHOSTXX"
+.It Dv NI_NOFQDN
+A fully qualified domain name is not required for local hosts.
+The local part of the fully qualified domain name is returned instead.
+.It Dv NI_NUMERICHOST
+Return the address in numeric form, as if calling
+.Xr inet_ntop 3 ,
+instead of a host name.
+.It Dv NI_NAMEREQD
+A name is required.
+If the host name cannot be found in DNS and this flag is set,
+a non-zero error code is returned.
+If the host name is not found and the flag is not set, the
+address is returned in numeric form.
+.It NI_NUMERICSERV
+The service name is returned as a digit string representing the port number.
+.It NI_DGRAM
+Specifies that the service being looked up is a datagram
+service, and causes
+.Xr getservbyport 3
+to be called with a second argument of
+.Dq udp
+instead of its default of
+.Dq tcp .
+This is required for the few ports (512\-514) that have different services
+for
+.Tn UDP
+and
+.Tn TCP .
+.El
+.Pp
+This implementation allows numeric IPv6 address notation with scope identifier,
+as documented in RFC 4007.
+IPv6 link-local address will appear as a string like
+.Dq Li fe80::1%ne0 .
+Refer to
+.Xr getaddrinfo 3
+for more information.
+.Sh RETURN VALUES
+.Fn getnameinfo
+returns zero on success or one of the error codes listed in
+.Xr gai_strerror 3
+if an error occurs.
+.Sh EXAMPLES
+The following code tries to get a numeric host name, and service name,
+for a given socket address.
+Observe that there is no hardcoded reference to a particular address family.
+.Bd -literal -offset indent
+struct sockaddr *sa;    /* input */
+char hbuf[NI_MAXHOST], sbuf[NI_MAXSERV];
+
+if (getnameinfo(sa, sa->sa_len, hbuf, sizeof(hbuf), sbuf,
+    sizeof(sbuf), NI_NUMERICHOST | NI_NUMERICSERV))
+        errx(1, "could not get numeric hostname");
+printf("host=%s, serv=%s\en", hbuf, sbuf);
+.Ed
+.Pp
+The following version checks if the socket address has a reverse address mapping:
+.Bd -literal -offset indent
+struct sockaddr *sa;    /* input */
+char hbuf[NI_MAXHOST];
+
+if (getnameinfo(sa, sa->sa_len, hbuf, sizeof(hbuf), NULL, 0,
+    NI_NAMEREQD))
+        errx(1, "could not resolve hostname");
+printf("host=%s\en", hbuf);
+.Ed
+.Sh SEE ALSO
+.Xr gai_strerror 3 ,
+.Xr getaddrinfo 3 ,
+.Xr gethostbyaddr 3 ,
+.Xr getservbyport 3 ,
+.Xr inet_ntop 3 ,
+.Xr resolver 3 ,
+.Xr hosts 5 ,
+.Xr resolv.conf 5 ,
+.Xr services 5 ,
+.Xr hostname 7 ,
+.Xr named 8
+.Rs
+.%A Craig Metz
+.%T Protocol Independence Using the Sockets API
+.%B Proceedings of the Freenix Track: 2000 USENIX Annual Technical Conference
+.%D June 2000
+.Re
+.Sh STANDARDS
+The
+.Fn getnameinfo
+function is defined by the
+.St -p1003.1g-2000
+draft specification and documented in RFC 3493.
+.Pp
+.Rs
+.%A R. Gilligan
+.%A S. Thomson
+.%A J. Bound
+.%A J. McCann
+.%A W. Stevens
+.%D February 2003
+.%R RFC 3493
+.%T Basic Socket Interface Extensions for IPv6
+.Re
+.Pp
+.Rs
+.%A S. Deering
+.%A B. Haberman
+.%A T. Jinmei
+.%A E. Nordmark
+.%A B. Zill
+.%D March 2005
+.%R RFC 4007
+.%T IPv6 Scoped Address Architecture
+.Re
+.Sh CAVEATS
+.Fn getnameinfo
+can return both numeric and FQDN forms of the address specified in
+.Fa sa .
+There is no return value that indicates whether the string returned in
+.Fa host
+is a result of binary to numeric-text translation (like
+.Xr inet_ntop 3 ) ,
+or is the result of a DNS reverse lookup.
+Because of this, malicious parties could set up a PTR record as follows:
+.Bd -literal -offset indent
+1.0.0.127.in-addr.arpa. IN PTR  10.1.1.1
+.Ed
+.Pp
+and trick the caller of
+.Fn getnameinfo
+into believing that
+.Fa sa
+is
+.Li 10.1.1.1
+when it is actually
+.Li 127.0.0.1 .
+.Pp
+To prevent such attacks, the use of
+.Dv NI_NAMEREQD
+is recommended when the result of
+.Fn getnameinfo
+is used
+for access control purposes:
+.Bd -literal -offset indent
+struct sockaddr *sa;
+char addr[NI_MAXHOST];
+struct addrinfo hints, *res;
+int error;
+
+error = getnameinfo(sa, sa->sa_len, addr, sizeof(addr),
+    NULL, 0, NI_NAMEREQD);
+if (error == 0) {
+        memset(&hints, 0, sizeof(hints));
+        hints.ai_socktype = SOCK_DGRAM; /*dummy*/
+        hints.ai_flags = AI_NUMERICHOST;
+        if (getaddrinfo(addr, "0", &hints, &res) == 0) {
+                /* malicious PTR record */
+                freeaddrinfo(res);
+                printf("bogus PTR record\en");
+                return -1;
+        }
+        /* addr is FQDN as a result of PTR lookup */
+} else {
+        /* addr is numeric string */
+        error = getnameinfo(sa, sa->sa_len, addr, sizeof(addr),
+            NULL, 0, NI_NUMERICHOST);
+}
+.Ed
+.Sh BUGS
+The implementation of
+.Fn getnameinfo
+is not thread-safe.
+.Pp
+.Ox
+intentionally uses a different
+.Dv NI_MAXHOST
+value from what
+.Tn "RFC 2553"
+suggests, to avoid buffer length handling mistakes.
diff --git a/src/lib/libc/net/getnetbyaddr.c b/src/lib/libc/net/getnetbyaddr.c
new file mode 100644
index 0000000000..a85106630c
--- /dev/null
+++ b/src/lib/libc/net/getnetbyaddr.c
@@ -0,0 +1,47 @@
+/*      $OpenBSD: getnetbyaddr.c,v 1.8 2005/08/06 20:30:03 espie Exp $ */
+/*
+ * Copyright (c) 1983, 1993
+ *      The Regents of the University of California.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <netdb.h>
+
+extern int _net_stayopen;
+
+struct netent *
+_getnetbyaddr(in_addr_t net, int type)
+{
+        struct netent *p;
+
+        setnetent(_net_stayopen);
+        while ((p = getnetent()))
+                if (p->n_addrtype == type && p->n_net == net)
+                        break;
+        if (!_net_stayopen)
+                endnetent();
+        return (p);
+}
diff --git a/src/lib/libc/net/getnetbyname.c b/src/lib/libc/net/getnetbyname.c
new file mode 100644
index 0000000000..e6540cf12c
--- /dev/null
+++ b/src/lib/libc/net/getnetbyname.c
@@ -0,0 +1,54 @@
+/*      $OpenBSD: getnetbyname.c,v 1.8 2005/08/06 20:30:03 espie Exp $ */
+/*
+ * Copyright (c) 1983, 1993
+ *      The Regents of the University of California.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <netdb.h>
+#include <string.h>
+
+extern int _net_stayopen;
+
+struct netent *
+_getnetbyname(const char *name)
+{
+        struct netent *p;
+        char **cp;
+
+        setnetent(_net_stayopen);
+        while ((p = getnetent())) {
+                if (strcasecmp(p->n_name, name) == 0)
+                        break;
+                for (cp = p->n_aliases; *cp != 0; cp++)
+                        if (strcasecmp(*cp, name) == 0)
+                                goto found;
+        }
+found:
+        if (!_net_stayopen)
+                endnetent();
+        return (p);
+}
diff --git a/src/lib/libc/net/getnetent.3 b/src/lib/libc/net/getnetent.3
new file mode 100644
index 0000000000..e0344e2dd0
--- /dev/null
+++ b/src/lib/libc/net/getnetent.3
@@ -0,0 +1,140 @@
+.\"     $OpenBSD: getnetent.3,v 1.16 2013/06/05 03:39:23 tedu Exp $
+.\"
+.\" Copyright (c) 1983, 1991, 1993
+.\"     The Regents of the University of California.  All rights reserved.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\" 3. Neither the name of the University nor the names of its contributors
+.\"    may be used to endorse or promote products derived from this software
+.\"    without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.Dd $Mdocdate: June 5 2013 $
+.Dt GETNETENT 3
+.Os
+.Sh NAME
+.Nm getnetent ,
+.Nm getnetbyaddr ,
+.Nm getnetbyname ,
+.Nm setnetent ,
+.Nm endnetent
+.Nd get network entry
+.Sh SYNOPSIS
+.In netdb.h
+.Ft struct netent *
+.Fn getnetent "void"
+.Ft struct netent *
+.Fn getnetbyname "const char *name"
+.Ft struct netent *
+.Fn getnetbyaddr "in_addr_t net" "int type"
+.Ft void
+.Fn setnetent "int stayopen"
+.Ft void
+.Fn endnetent "void"
+.Sh DESCRIPTION
+The
+.Fn getnetent ,
+.Fn getnetbyname ,
+and
+.Fn getnetbyaddr
+functions each return a pointer to an object with the following structure
+containing the broken-out fields of a line in the network database,
+.Pa /etc/networks .
+.Bd -literal -offset indent
+struct  netent {
+        char            *n_name;        /* official name of net */
+        char            **n_aliases;    /* alias list */
+        int             n_addrtype;     /* net number type */
+        in_addr_t       n_net;          /* net number */
+};
+.Ed
+.Pp
+The members of this structure are:
+.Bl -tag -width n_addrtype
+.It Fa n_name
+The official name of the network.
+.It Fa n_aliases
+A null-terminated list of alternate names for the network.
+.It Fa n_addrtype
+The type of the network number returned; currently only
+.Dv AF_INET .
+.It Fa n_net
+The network number.
+Network numbers are returned in machine byte order.
+.El
+.Pp
+The
+.Fn getnetent
+function reads the next line of the file, opening the file if necessary.
+.Pp
+The
+.Fn setnetent
+function opens and rewinds the file.
+If the
+.Fa stayopen
+flag is non-zero,
+the net database will not be closed after each call to
+.Fn getnetbyname
+or
+.Fn getnetbyaddr .
+.Pp
+The
+.Fn endnetent
+function closes the file.
+.Pp
+The
+.Fn getnetbyname
+and
+.Fn getnetbyaddr
+functions search the domain name server if the system is configured to use one.
+If the search fails, or no name server is configured, they sequentially
+search from the beginning of the file until a matching net name or
+net address and type is found, or until
+.Dv EOF
+is encountered.
+Network numbers are supplied in host order.
+.Sh FILES
+.Bl -tag -width /etc/networks -compact
+.It Pa /etc/networks
+.El
+.Sh DIAGNOSTICS
+Null pointer (0) returned on
+.Dv EOF
+or error.
+.Sh SEE ALSO
+.Xr resolver 3 ,
+.Xr networks 5
+.Sh HISTORY
+The
+.Fn getnetent ,
+.Fn getnetbyaddr ,
+.Fn getnetbyname ,
+.Fn setnetent ,
+and
+.Fn endnetent
+functions appeared in
+.Bx 4.2 .
+.Sh BUGS
+The data space used by these functions is static; if future use
+requires the data, it should be copied before any subsequent calls
+to these functions overwrite it.
+Only Internet network numbers are currently understood.
+Expecting network numbers to fit in no more than 32 bits is naive.
diff --git a/src/lib/libc/net/getnetent.c b/src/lib/libc/net/getnetent.c
new file mode 100644
index 0000000000..57fe459e2b
--- /dev/null
+++ b/src/lib/libc/net/getnetent.c
@@ -0,0 +1,120 @@
+/*      $OpenBSD: getnetent.c,v 1.13 2012/04/10 16:41:10 eric Exp $ */
+/*
+ * Copyright (c) 1983, 1993
+ *      The Regents of the University of California.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <sys/param.h>
+#include <sys/socket.h>
+#include <netinet/in.h>
+#include <arpa/inet.h>
+#include <netdb.h>
+#include <stdio.h>
+#include <string.h>
+
+#define MAXALIASES      35
+
+static FILE *netf;
+static char line[BUFSIZ+1];
+static struct netent net;
+static char *net_aliases[MAXALIASES];
+int _net_stayopen;
+
+void
+setnetent(int f)
+{
+        if (netf == NULL)
+                netf = fopen(_PATH_NETWORKS, "r" );
+        else
+                rewind(netf);
+        _net_stayopen |= f;
+}
+
+void
+endnetent(void)
+{
+        if (netf) {
+                fclose(netf);
+                netf = NULL;
+        }
+        _net_stayopen = 0;
+}
+
+struct netent *
+getnetent(void)
+{
+        char *p, *cp, **q;
+        size_t len;
+
+        if (netf == NULL && (netf = fopen(_PATH_NETWORKS, "r" )) == NULL)
+                return (NULL);
+again:
+        if ((p = fgetln(netf, &len)) == NULL)
+                return (NULL);
+        if (p[len-1] == '\n')
+                len--;
+        if (len >= sizeof(line) || len == 0)
+                goto again;
+        p = memcpy(line, p, len);
+        line[len] = '\0';
+        if (*p == '#')
+                goto again;
+        if ((cp = strchr(p, '#')) != NULL)
+                *cp = '\0';
+        net.n_name = p;
+        if (strlen(net.n_name) >= MAXHOSTNAMELEN-1)
+                net.n_name[MAXHOSTNAMELEN-1] = '\0';
+        cp = strpbrk(p, " \t");
+        if (cp == NULL)
+                goto again;
+        *cp++ = '\0';
+        while (*cp == ' ' || *cp == '\t')
+                cp++;
+        p = strpbrk(cp, " \t");
+        if (p != NULL)
+                *p++ = '\0';
+        net.n_net = inet_network(cp);
+        net.n_addrtype = AF_INET;
+        q = net.n_aliases = net_aliases;
+        cp = p;
+        while (cp && *cp) {
+                if (*cp == ' ' || *cp == '\t') {
+                        cp++;
+                        continue;
+                }
+                if (q < &net_aliases[MAXALIASES - 1]) {
+                        *q++ = cp;
+                        if (strlen(cp) >= MAXHOSTNAMELEN-1)
+                                cp[MAXHOSTNAMELEN-1] = '\0';
+                }
+                cp = strpbrk(cp, " \t");
+                if (cp != NULL)
+                        *cp++ = '\0';
+        }
+        *q = NULL;
+        return (&net);
+}
diff --git a/src/lib/libc/net/getpeereid.3 b/src/lib/libc/net/getpeereid.3
new file mode 100644
index 0000000000..9c5742a245
--- /dev/null
+++ b/src/lib/libc/net/getpeereid.3
@@ -0,0 +1,121 @@
+.\"     $OpenBSD: getpeereid.3,v 1.3 2013/06/05 03:39:23 tedu Exp $
+.\"
+.\" Copyright (c) 1983, 1991, 1993
+.\"     The Regents of the University of California.  All rights reserved.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\" 3. Neither the name of the University nor the names of its contributors
+.\"    may be used to endorse or promote products derived from this software
+.\"    without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.Dd $Mdocdate: June 5 2013 $
+.Dt GETPEEREID 3
+.Os
+.Sh NAME
+.Nm getpeereid
+.Nd get effective user and group identification of locally-connected peer
+.Sh SYNOPSIS
+.In sys/types.h
+.In sys/socket.h
+.Ft int
+.Fn getpeereid "int s" "uid_t *euid" "gid_t *egid"
+.Sh DESCRIPTION
+.Fn getpeereid
+returns the effective user ID and group ID of the peer connected to
+a
+.Ux Ns -domain
+socket (see
+.Xr unix 4 ) .
+The argument
+.Fa s
+must be of type
+.Dv SOCK_STREAM
+or
+.Dv SOCK_SEQPACKET .
+.Pp
+One common use is for
+.Ux Ns -domain
+servers to determine the credentials of clients that have connected to it.
+.Pp
+.Fn getpeereid
+takes three parameters:
+.Bl -bullet
+.It
+.Fa s
+contains the file descriptor of the socket whose peer credentials
+should be looked up.
+.It
+.Fa euid
+points to a
+.Li uid_t
+variable into which the effective user ID for the connected peer will
+be stored.
+.It
+.Fa egid
+points to a
+.Li gid_t
+variable into which the effective group ID for the connected peer will
+be stored.
+.El
+.Sh RETURN VALUES
+If the call succeeds, a 0 is returned and
+.Fa euid
+and
+.Fa egid
+are set to the effective user ID and group ID of the connected peer.
+Otherwise,
+.Va errno
+is set and a value of \-1 is returned.
+.Sh ERRORS
+On failure,
+.Va errno
+is set to one of the following:
+.Bl -tag -width Er
+.It Bq Er EBADF
+The argument
+.Fa s
+is not a valid descriptor.
+.It Bq Er ENOTSOCK
+The argument
+.Fa s
+is a file, not a socket.
+.It Bq Er EOPNOTSUPP
+The socket is not in the
+.Ux Ns -domain .
+.It Bq Er ENOTCONN
+The socket is not connected.
+.It Bq Er ENOBUFS
+Insufficient resources were available in the system
+to perform the operation.
+.El
+.Sh SEE ALSO
+.Xr accept 2 ,
+.Xr bind 2 ,
+.Xr getpeername 2 ,
+.Xr getsockname 2 ,
+.Xr getsockopt 2 ,
+.Xr socket 2 ,
+.Xr unix 4
+.Sh HISTORY
+The
+.Fn getpeereid
+function call appeared in
+.Ox 3.0 .
diff --git a/src/lib/libc/net/getpeereid.c b/src/lib/libc/net/getpeereid.c
new file mode 100644
index 0000000000..208e541f17
--- /dev/null
+++ b/src/lib/libc/net/getpeereid.c
@@ -0,0 +1,36 @@
+/*      $OpenBSD: getpeereid.c,v 1.1 2010/07/01 19:15:30 deraadt Exp $  */
+
+/*
+ * Copyright (c) 2010 Theo de Raadt <deraadt@openbsd.org>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include <sys/types.h>
+#include <sys/socket.h>
+
+int
+getpeereid(int s, uid_t *euid, gid_t *egid)
+{
+        struct sockpeercred creds;
+        socklen_t credslen = sizeof(creds);
+        int error;
+
+        error = getsockopt(s, SOL_SOCKET, SO_PEERCRED,
+            &creds, &credslen);
+        if (error)
+                return (error);
+        *euid = creds.uid;
+        *egid = creds.gid;
+        return (0);
+}
diff --git a/src/lib/libc/net/getproto.c b/src/lib/libc/net/getproto.c
new file mode 100644
index 0000000000..07fa33288d
--- /dev/null
+++ b/src/lib/libc/net/getproto.c
@@ -0,0 +1,59 @@
+/*      $OpenBSD: getproto.c,v 1.7 2005/08/06 20:30:03 espie Exp $ */
+/*
+ * Copyright (c) 1983, 1993
+ *      The Regents of the University of California.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <netdb.h>
+#include <stdio.h>
+
+int
+getprotobynumber_r(int num, struct protoent *pe, struct protoent_data *pd)
+{
+        int error;
+
+        setprotoent_r(pd->stayopen, pd);
+        while ((error = getprotoent_r(pe, pd)) == 0)
+                if (pe->p_proto == num)
+                        break;
+        if (!pd->stayopen && pd->fp != NULL) {
+                (void)fclose(pd->fp);
+                pd->fp = NULL;
+        }
+        return (error);
+}
+
+struct protoent *
+getprotobynumber(int num)
+{
+        extern struct protoent_data _protoent_data;
+        static struct protoent proto;
+
+        if (getprotobynumber_r(num, &proto, &_protoent_data) != 0)
+                return (NULL);
+        return (&proto);
+}
diff --git a/src/lib/libc/net/getprotoent.3 b/src/lib/libc/net/getprotoent.3
new file mode 100644
index 0000000000..cc2c69836a
--- /dev/null
+++ b/src/lib/libc/net/getprotoent.3
@@ -0,0 +1,213 @@
+.\"     $OpenBSD: getprotoent.3,v 1.18 2013/06/05 03:39:23 tedu Exp $
+.\"
+.\" Copyright (c) 1983, 1991, 1993
+.\"     The Regents of the University of California.  All rights reserved.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\" 3. Neither the name of the University nor the names of its contributors
+.\"    may be used to endorse or promote products derived from this software
+.\"    without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.Dd $Mdocdate: June 5 2013 $
+.Dt GETPROTOENT 3
+.Os
+.Sh NAME
+.Nm getprotoent ,
+.Nm getprotoent_r ,
+.Nm getprotobynumber ,
+.Nm getprotobynumber_r ,
+.Nm getprotobyname ,
+.Nm getprotobyname_r ,
+.Nm setprotoent ,
+.Nm setprotoent_r ,
+.Nm endprotoent ,
+.Nm endprotoent_r
+.Nd get protocol entry
+.Sh SYNOPSIS
+.In netdb.h
+.Ft struct protoent *
+.Fn getprotoent "void"
+.Ft int
+.Fn getprotoent_r "struct protoent *protoent" "struct protoent_data *protoent_data"
+.Ft struct protoent *
+.Fn getprotobyname "const char *name"
+.Ft int
+.Fn getprotobyname_r "const char *name" "struct protoent *protoent" "struct protoent_data *protoent_data"
+.Ft struct protoent *
+.Fn getprotobynumber "int proto"
+.Ft int
+.Fn getprotobynumber_r "int proto" "struct protoent *protoent" "struct protoent_data *protoent_data"
+.Ft void
+.Fn setprotoent "int stayopen"
+.Ft void
+.Fn setprotoent_r "int stayopen" "struct protoent_data *protoent_data"
+.Ft void
+.Fn endprotoent "void"
+.Ft void
+.Fn endprotoent_r "struct protoent_data *protoent_data"
+.Sh DESCRIPTION
+The
+.Fn getprotoent ,
+.Fn getprotobyname ,
+and
+.Fn getprotobynumber
+functions each return a pointer to an object with the following structure
+containing the broken-out fields of a line in the network protocol database,
+.Pa /etc/protocols .
+.Bd -literal -offset indent
+.Pp
+struct  protoent {
+        char    *p_name;        /* official name of protocol */
+        char    **p_aliases;    /* alias list */
+        int     p_proto;        /* protocol number */
+};
+.Ed
+.Pp
+The members of this structure are:
+.Bl -tag -width p_aliases
+.It Fa p_name
+The official name of the protocol.
+.It Fa p_aliases
+A null-terminated list of alternate names for the protocol.
+.It Fa p_proto
+The protocol number.
+.El
+.Pp
+The
+.Fn getprotoent
+function reads the next line of the file, opening the file if necessary.
+.Pp
+The
+.Fn setprotoent
+function opens and rewinds the file.
+If the
+.Fa stayopen
+flag is non-zero,
+the protocol database will not be closed after each call to
+.Fn getprotobyname
+or
+.Fn getprotobynumber .
+.Pp
+The
+.Fn endprotoent
+function closes the file.
+.Pp
+The
+.Fn getprotobyname
+and
+.Fn getprotobynumber
+functions sequentially search from the beginning of the file until a
+matching protocol name or protocol number is found, or until
+.Dv EOF
+is encountered.
+.Pp
+The
+.Fn getprotoent_r ,
+.Fn getprotobyport_r ,
+.Fn getprotobyname_r ,
+.Fn setprotoent_r ,
+and
+.Fn endprotoent_r
+functions are reentrant versions of the above functions that take a
+pointer to a
+.Vt protoent_data
+structure which is used to store state information.
+The structure must be zero-filled before it is used
+and should be considered opaque for the sake of portability.
+.Pp
+The
+.Fn getprotoent_r ,
+.Fn getprotobyport_r ,
+and
+.Fn getprotobyname_r
+functions
+also take a pointer to a
+.Vt protoent
+structure which is used to store the results of the database lookup.
+.Sh RETURN VALUES
+The
+.Fn getprotoent ,
+.Fn getprotobyport ,
+and
+.Fn getprotobyname
+functions return a pointer to a
+.Vt protoent
+structure on success or a null pointer if end-of-file
+is reached or an error occurs.
+.Pp
+The
+.Fn getprotoent_r ,
+.Fn getprotobyport_r ,
+and
+.Fn getprotobyname_r
+functions return 0 on success or \-1 if end-of-file
+is reached or an error occurs.
+.Sh FILES
+.Bl -tag -width /etc/protocols -compact
+.It Pa /etc/protocols
+.El
+.Sh SEE ALSO
+.Xr protocols 5
+.Sh STANDARDS
+The
+.Fn getprotoent ,
+.Fn getprotobynumber ,
+.Fn getprotobyname ,
+.Fn setprotoent ,
+and
+.Fn endprotoent
+functions conform to
+.St -p1003.1-2004 .
+.Pp
+The
+.Fn getprotoent_r ,
+.Fn getprotobyport_r ,
+.Fn getprotobyname_r ,
+.Fn setprotoent_r ,
+and
+.Fn endprotoent_r
+functions are not currently standardized.
+This implementation follows the API used by HP, IBM, and Digital.
+.Sh HISTORY
+The
+.Fn getprotoent ,
+.Fn getprotobynumber ,
+.Fn getprotobyname ,
+.Fn setprotoent ,
+and
+.Fn endprotoent
+functions appeared in
+.Bx 4.2 .
+.Pp
+The
+.Fn getprotoent_r ,
+.Fn getprotobyport_r ,
+.Fn getprotobyname_r ,
+.Fn setprotoent_r ,
+and
+.Fn endprotoent_r
+functions appeared in
+.Ox 3.7 .
+.Sh BUGS
+The non-reentrant functions use a static data space; if the data is needed
+for future use, it should be copied before any subsequent calls overwrite it.
+Only the Internet protocols are currently understood.
diff --git a/src/lib/libc/net/getprotoent.c b/src/lib/libc/net/getprotoent.c
new file mode 100644
index 0000000000..f0705e0765
--- /dev/null
+++ b/src/lib/libc/net/getprotoent.c
@@ -0,0 +1,166 @@
+/*      $OpenBSD: getprotoent.c,v 1.10 2007/09/02 15:19:17 deraadt Exp $ */
+/*
+ * Copyright (c) 1983, 1993
+ *      The Regents of the University of California.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <sys/types.h>
+#include <sys/socket.h>
+
+#include <errno.h>
+#include <limits.h>
+#include <netdb.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+void
+setprotoent_r(int f, struct protoent_data *pd)
+{
+        if (pd->fp == NULL)
+                pd->fp = fopen(_PATH_PROTOCOLS, "r" );
+        else
+                rewind(pd->fp);
+        pd->stayopen |= f;
+}
+
+void
+endprotoent_r(struct protoent_data *pd)
+{
+        if (pd->fp) {
+                fclose(pd->fp);
+                pd->fp = NULL;
+        }
+        free(pd->aliases);
+        pd->aliases = NULL;
+        pd->maxaliases = 0;
+        free(pd->line);
+        pd->line = NULL;
+        pd->stayopen = 0;
+}
+
+int
+getprotoent_r(struct protoent *pe, struct protoent_data *pd)
+{
+        char *p, *cp, **q, *endp;
+        size_t len;
+        long l;
+        int serrno;
+
+        if (pd->fp == NULL && (pd->fp = fopen(_PATH_PROTOCOLS, "r" )) == NULL)
+                return (-1);
+again:
+        if ((p = fgetln(pd->fp, &len)) == NULL)
+                return (-1);
+        if (len == 0 || *p == '#' || *p == '\n')
+                goto again;
+        if (p[len-1] == '\n')
+                len--;
+        if ((cp = memchr(p, '#', len)) != NULL)
+                len = cp - p;
+        cp = realloc(pd->line, len + 1);
+        if (cp == NULL)
+                return (-1);
+        pd->line = pe->p_name = memcpy(cp, p, len);
+        cp[len] = '\0';
+        cp = strpbrk(cp, " \t");
+        if (cp == NULL)
+                goto again;
+        *cp++ = '\0';
+        while (*cp == ' ' || *cp == '\t')
+                cp++;
+        p = strpbrk(cp, " \t");
+        if (p != NULL)
+                *p++ = '\0';
+        l = strtol(cp, &endp, 10);
+        if (endp == cp || *endp != '\0' || l < 0 || l >= INT_MAX)
+                goto again;
+        pe->p_proto = l;
+        if (pd->aliases == NULL) {
+                pd->maxaliases = 5;
+                pd->aliases = calloc(pd->maxaliases, sizeof(char *));
+                if (pd->aliases == NULL) {
+                        serrno = errno;
+                        endprotoent_r(pd);
+                        errno = serrno;
+                        return (-1);
+                }
+        }
+        q = pe->p_aliases = pd->aliases;
+        if (p != NULL) {
+                cp = p;
+                while (cp && *cp) {
+                        if (*cp == ' ' || *cp == '\t') {
+                                cp++;
+                                continue;
+                        }
+                        if (q == &pe->p_aliases[pd->maxaliases - 1]) {
+                                p = realloc(pe->p_aliases,
+                                    2 * pd->maxaliases * sizeof(char *));
+                                if (p == NULL) {
+                                        serrno = errno;
+                                        endprotoent_r(pd);
+                                        errno = serrno;
+                                        return (-1);
+                                }
+                                pd->maxaliases *= 2;
+                                q = (char **)p + (q - pe->p_aliases);
+                                pe->p_aliases = pd->aliases = (char **)p;
+                        }
+                        *q++ = cp;
+                        cp = strpbrk(cp, " \t");
+                        if (cp != NULL)
+                                *cp++ = '\0';
+                }
+        }
+        *q = NULL;
+        return (0);
+}
+
+struct protoent_data _protoent_data;    /* shared with getproto{,name}.c */
+
+void
+setprotoent(int f)
+{
+        setprotoent_r(f, &_protoent_data);
+}
+
+void
+endprotoent(void)
+{
+        endprotoent_r(&_protoent_data);
+}
+
+struct protoent *
+getprotoent(void)
+{
+        static struct protoent proto;
+
+        if (getprotoent_r(&proto, &_protoent_data) != 0)
+                return (NULL);
+        return (&proto);
+}
diff --git a/src/lib/libc/net/getprotoname.c b/src/lib/libc/net/getprotoname.c
new file mode 100644
index 0000000000..749b6b3f13
--- /dev/null
+++ b/src/lib/libc/net/getprotoname.c
@@ -0,0 +1,67 @@
+/*      $OpenBSD: getprotoname.c,v 1.7 2005/08/06 20:30:03 espie Exp $ */
+/*
+ * Copyright (c) 1983, 1993
+ *      The Regents of the University of California.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <netdb.h>
+#include <stdio.h>
+#include <string.h>
+
+int
+getprotobyname_r(const char *name, struct protoent *pe,
+    struct protoent_data *pd)
+{
+        char **cp;
+        int error;
+
+        setprotoent_r(pd->stayopen, pd);
+        while ((error = getprotoent_r(pe, pd)) == 0) {
+                if (strcmp(pe->p_name, name) == 0)
+                        break;
+                for (cp = pe->p_aliases; *cp != 0; cp++)
+                        if (strcmp(*cp, name) == 0)
+                                goto found;
+        }
+found:
+        if (!pd->stayopen && pd->fp != NULL) {
+                fclose(pd->fp);
+                pd->fp = NULL;
+        }
+        return (error);
+}
+
+struct protoent *
+getprotobyname(const char *name)
+{
+        extern struct protoent_data _protoent_data;
+        static struct protoent proto;
+
+        if (getprotobyname_r(name, &proto, &_protoent_data) != 0)
+                return (NULL);
+        return (&proto);
+}
diff --git a/src/lib/libc/net/getrrsetbyname.3 b/src/lib/libc/net/getrrsetbyname.3
new file mode 100644
index 0000000000..677b2a4c2e
--- /dev/null
+++ b/src/lib/libc/net/getrrsetbyname.3
@@ -0,0 +1,165 @@
+.\" $OpenBSD: getrrsetbyname.3,v 1.18 2013/07/16 15:21:11 schwarze Exp $
+.\"
+.\" Copyright (C) 2000, 2001  Internet Software Consortium.
+.\"
+.\" Permission to use, copy, modify, and distribute this software for any
+.\" purpose with or without fee is hereby granted, provided that the above
+.\" copyright notice and this permission notice appear in all copies.
+.\"
+.\" THE SOFTWARE IS PROVIDED "AS IS" AND INTERNET SOFTWARE CONSORTIUM
+.\" DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL
+.\" INTERNET SOFTWARE CONSORTIUM BE LIABLE FOR ANY SPECIAL, DIRECT,
+.\" INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING
+.\" FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT,
+.\" NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION
+.\" WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+.\"
+.Dd $Mdocdate: July 16 2013 $
+.Dt GETRRSETBYNAME 3
+.Os
+.Sh NAME
+.Nm freerrset ,
+.Nm getrrsetbyname
+.Nd retrieve DNS records
+.Sh SYNOPSIS
+.In netdb.h
+.Ft int
+.Fn getrrsetbyname "const char *hostname" "unsigned int rdclass" \
+"unsigned int rdtype" "unsigned int flags" "struct rrsetinfo **res"
+.Ft void
+.Fn freerrset "struct rrsetinfo *rrset"
+.Sh DESCRIPTION
+.Fn getrrsetbyname
+gets a set of resource records associated with a
+.Fa hostname ,
+.Fa rdclass ,
+and
+.Fa rdtype .
+.Fa hostname
+is a pointer to a NUL-terminated string.
+The
+.Fa flags
+field is currently unused and must be zero.
+.Pp
+After a successful call to
+.Fn getrrsetbyname ,
+.Fa *res
+is a pointer to an
+.Li rrsetinfo
+structure, containing a list of one or more
+.Li rdatainfo
+structures containing resource records and potentially another list of
+.Li rdatainfo
+structures containing SIG resource records associated with those records.
+The members
+.Li rri_rdclass
+and
+.Li rri_rdtype
+are copied from the parameters.
+.Li rri_ttl
+and
+.Li rri_name
+are properties of the obtained rrset.
+The resource records contained in
+.Li rri_rdatas
+and
+.Li rri_sigs
+are in uncompressed DNS wire format.
+Properties of the rdataset are represented in the
+.Li rri_flags
+bitfield.
+If the
+.Dv RRSET_VALIDATED
+bit is set, the data has been DNSSEC
+validated and the signatures verified.
+.Pp
+The following structures are used:
+.Bd -literal -offset indent
+struct  rdatainfo {
+        unsigned int    rdi_length;     /* length of data */
+        unsigned char   *rdi_data;      /* record data */
+};
+
+struct  rrsetinfo {
+        unsigned int     rri_flags;     /* RRSET_VALIDATED ... */
+        unsigned int     rri_rdclass;   /* class number */
+        unsigned int     rri_rdtype;    /* RR type number */
+        unsigned int     rri_ttl;       /* time to live */
+        unsigned int     rri_nrdatas;   /* size of rdatas array */
+        unsigned int     rri_nsigs;     /* size of sigs array */
+        char             *rri_name;     /* canonical name */
+        struct rdatainfo *rri_rdatas;   /* individual records */
+        struct rdatainfo *rri_sigs;     /* individual signatures */
+};
+.Ed
+.Pp
+All of the information returned by
+.Fn getrrsetbyname
+is dynamically allocated: the
+.Li rrsetinfo
+and
+.Li rdatainfo
+structures,
+and the canonical host name strings pointed to by the
+.Li rrsetinfo
+structure.
+Memory allocated for the dynamically allocated structures created by
+a successful call to
+.Fn getrrsetbyname
+is released by
+.Fn freerrset .
+.Li rrset
+is a pointer to a
+.Li struct rrsetinfo
+created by a call to
+.Fn getrrsetbyname .
+.Pp
+If the EDNS0 option is activated in
+.Xr resolv.conf 5 ,
+.Fn getrrsetbyname
+will request DNSSEC authentication using the EDNS0 DNSSEC OK (DO) bit.
+.Sh RETURN VALUES
+.Fn getrrsetbyname
+returns zero on success, and one of the following error
+codes if an error occurred:
+.Bl -tag -width ERRSET_NOMEMORY
+.It Bq Er ERRSET_NONAME
+The name does not exist.
+.It Bq Er ERRSET_NODATA
+The name exists, but does not have data of the desired type.
+.It Bq Er ERRSET_NOMEMORY
+Memory could not be allocated.
+.It Bq Er ERRSET_INVAL
+A parameter is invalid.
+.It Bq Er ERRSET_FAIL
+Other failure.
+.El
+.Sh SEE ALSO
+.Xr resolver 3 ,
+.Xr resolv.conf 5 ,
+.Xr named 8
+.Sh HISTORY
+.Fn getrrsetbyname
+first appeared in
+.Ox 3.0 .
+The API first appeared in ISC BIND version 9.
+.Sh AUTHORS
+.An Jakob Schlyter Aq Mt jakob@openbsd.org
+.Sh CAVEATS
+The
+.Dv RRSET_VALIDATED
+flag in
+.Li rri_flags
+is set if the AD (authenticated data) bit in the DNS answer is
+set.
+This flag
+.Em should not
+be trusted unless the transport between the nameserver and the resolver
+is secure (e.g. IPsec, trusted network, loopback communication).
+.Sh BUGS
+The data in
+.Li *rdi_data
+should be returned in uncompressed wire format.
+Currently, the data is in compressed format and the caller can't
+uncompress since it doesn't have the full message.
diff --git a/src/lib/libc/net/getservbyname.c b/src/lib/libc/net/getservbyname.c
new file mode 100644
index 0000000000..beb8943af6
--- /dev/null
+++ b/src/lib/libc/net/getservbyname.c
@@ -0,0 +1,70 @@
+/*      $OpenBSD: getservbyname.c,v 1.10 2005/08/06 20:30:03 espie Exp $ */
+/*
+ * Copyright (c) 1983, 1993
+ *      The Regents of the University of California.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <netdb.h>
+#include <stdio.h>
+#include <string.h>
+
+int
+getservbyname_r(const char *name, const char *proto, struct servent *se,
+    struct servent_data *sd)
+{
+        char **cp;
+        int error;
+
+        setservent_r(sd->stayopen, sd);
+        while ((error = getservent_r(se, sd)) == 0) {
+                if (strcmp(name, se->s_name) == 0)
+                        goto gotname;
+                for (cp = se->s_aliases; *cp; cp++)
+                        if (strcmp(name, *cp) == 0)
+                                goto gotname;
+                continue;
+gotname:
+                if (proto == 0 || strcmp(se->s_proto, proto) == 0)
+                        break;
+        }
+        if (!sd->stayopen && sd->fp != NULL) {
+                fclose(sd->fp);
+                sd->fp = NULL;
+        }
+        return (error);
+}
+
+struct servent *
+getservbyname(const char *name, const char *proto)
+{
+        extern struct servent_data _servent_data;
+        static struct servent serv;
+
+        if (getservbyname_r(name, proto, &serv, &_servent_data) != 0)
+                return (NULL);
+        return (&serv);
+}
diff --git a/src/lib/libc/net/getservbyport.c b/src/lib/libc/net/getservbyport.c
new file mode 100644
index 0000000000..46679ba366
--- /dev/null
+++ b/src/lib/libc/net/getservbyport.c
@@ -0,0 +1,64 @@
+/*      $OpenBSD: getservbyport.c,v 1.7 2005/08/06 20:30:03 espie Exp $ */
+/*
+ * Copyright (c) 1983, 1993
+ *      The Regents of the University of California.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <netdb.h>
+#include <stdio.h>
+#include <string.h>
+
+int
+getservbyport_r(int port, const char *proto, struct servent *se,
+    struct servent_data *sd)
+{
+        int error;
+
+        setservent_r(sd->stayopen, sd);
+        while ((error = getservent_r(se, sd)) == 0) {
+                if (se->s_port != port)
+                        continue;
+                if (proto == 0 || strcmp(se->s_proto, proto) == 0)
+                        break;
+        }
+        if (!sd->stayopen && sd->fp != NULL) {
+                fclose(sd->fp);
+                sd->fp = NULL;
+        }
+        return (error);
+}
+
+struct servent *
+getservbyport(int port, const char *proto)
+{
+        extern struct servent_data _servent_data;
+        static struct servent serv;
+
+        if (getservbyport_r(port, proto, &serv, &_servent_data) != 0)
+                return (NULL);
+        return (&serv);
+}
diff --git a/src/lib/libc/net/getservent.3 b/src/lib/libc/net/getservent.3
new file mode 100644
index 0000000000..29dd3eb5f4
--- /dev/null
+++ b/src/lib/libc/net/getservent.3
@@ -0,0 +1,220 @@
+.\"     $OpenBSD: getservent.3,v 1.21 2013/06/05 03:39:23 tedu Exp $
+.\"
+.\" Copyright (c) 1983, 1991, 1993
+.\"     The Regents of the University of California.  All rights reserved.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\" 3. Neither the name of the University nor the names of its contributors
+.\"    may be used to endorse or promote products derived from this software
+.\"    without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.Dd $Mdocdate: June 5 2013 $
+.Dt GETSERVENT 3
+.Os
+.Sh NAME
+.Nm getservent ,
+.Nm getservent_r ,
+.Nm getservbyport ,
+.Nm getservbyport_r ,
+.Nm getservbyname ,
+.Nm getservbyname_r ,
+.Nm setservent ,
+.Nm setservent_r ,
+.Nm endservent ,
+.Nm endservent_r
+.Nd get service entry
+.Sh SYNOPSIS
+.In netdb.h
+.Ft struct servent *
+.Fn getservent "void"
+.Ft int
+.Fn getservent_r "struct servent *servent" "struct servent_data *servent_data"
+.Ft struct servent *
+.Fn getservbyname "const char *name" "const char *proto"
+.Ft int
+.Fn getservbyname_r "const char *name" "const char *proto" "struct servent *servent" "struct servent_data *servent_data"
+.Ft struct servent *
+.Fn getservbyport "int port" "const char *proto"
+.Ft int
+.Fn getservbyport_r "int port" "const char *proto" "struct servent *servent" "struct servent_data *servent_data"
+.Ft void
+.Fn setservent "int stayopen"
+.Ft void
+.Fn setservent_r "int stayopen" "struct servent_data *servent_data"
+.Ft void
+.Fn endservent "void"
+.Ft void
+.Fn endservent_r "struct servent_data *servent_data"
+.Sh DESCRIPTION
+The
+.Fn getservent ,
+.Fn getservbyname ,
+and
+.Fn getservbyport
+functions each return a pointer to an object with the following structure
+containing the broken-out fields of a line in the network services database,
+.Pa /etc/services .
+.Bd -literal -offset indent
+struct  servent {
+        char    *s_name;        /* official name of service */
+        char    **s_aliases;    /* alias list */
+        int     s_port;         /* port service resides at */
+        char    *s_proto;       /* protocol to use */
+};
+.Ed
+.Pp
+The members of this structure are:
+.Bl -tag -width s_aliases
+.It Fa s_name
+The official name of the service.
+.It Fa s_aliases
+A null-terminated list of alternate names for the service.
+.It Fa s_port
+The port number at which the service resides.
+Port numbers are returned in network byte order.
+.It Fa s_proto
+The name of the protocol to use when contacting the service.
+.El
+.Pp
+The
+.Fn getservent
+function reads the next line of the file, opening the file if necessary.
+.Pp
+The
+.Fn setservent
+function opens and rewinds the file.
+If the
+.Fa stayopen
+flag is non-zero,
+the services database will not be closed after each call to
+.Fn getservbyname
+or
+.Fn getservbyport .
+.Pp
+The
+.Fn endservent
+function closes the file.
+.Pp
+The
+.Fn getservbyname
+and
+.Fn getservbyport
+functions sequentially search from the beginning of the file until a
+matching protocol name or port number (specified in network byte order)
+is found, or until
+.Dv EOF
+is encountered.
+If a protocol name is also supplied (non-null),
+searches must also match the protocol.
+.Pp
+The
+.Fn getservent_r ,
+.Fn getservbyport_r ,
+.Fn getservbyname_r ,
+.Fn setservent_r ,
+and
+.Fn endservent_r
+functions are reentrant versions of the above functions that take a
+pointer to a
+.Fa servent_data
+structure which is used to store state information.
+The structure must be zero-filled before it is used
+and should be considered opaque for the sake of portability.
+.Pp
+The
+.Fn getservent_r ,
+.Fn getservbyport_r ,
+and
+.Fn getservbyname_r
+functions
+also take a pointer to a
+.Fa servent
+structure which is used to store the results of the database lookup.
+.Sh RETURN VALUES
+The
+.Fn getservent ,
+.Fn getservbyport ,
+and
+.Fn getservbyname
+functions return a pointer to a
+.Fa servent
+structure on success or a null pointer if end-of-file
+is reached or an error occurs.
+.Pp
+The
+.Fn getservent_r ,
+.Fn getservbyport_r ,
+and
+.Fn getservbyname_r
+functions return 0 on success or \-1 if end-of-file
+is reached or an error occurs.
+.Sh FILES
+.Bl -tag -width /etc/services -compact
+.It Pa /etc/services
+.El
+.Sh SEE ALSO
+.Xr getprotoent 3 ,
+.Xr services 5
+.Sh STANDARDS
+The
+.Fn getservent ,
+.Fn getservbynumber ,
+.Fn getservbyname ,
+.Fn setservent ,
+and
+.Fn endservent
+functions conform to
+.St -p1003.1-2004 .
+.Pp
+The
+.Fn getservent_r ,
+.Fn getservbyport_r ,
+.Fn getservbyname_r ,
+.Fn setservent_r ,
+and
+.Fn endservent_r
+functions are not currently standardized.
+This implementation follows the API used by HP, IBM, and Digital.
+.Sh HISTORY
+The
+.Fn getservent ,
+.Fn getservbyport ,
+.Fn getservbyname ,
+.Fn setservent ,
+and
+.Fn endservent
+functions appeared in
+.Bx 4.2 .
+.Pp
+The
+.Fn getservent_r ,
+.Fn getservbyport_r ,
+.Fn getservbyname_r ,
+.Fn setservent_r ,
+and
+.Fn endservent_r
+functions appeared in
+.Ox 3.7 .
+.Sh BUGS
+The non-reentrant functions use static data storage; if the data is needed
+for future use, it should be copied before any subsequent calls overwrite it.
+Expecting port numbers to fit in a 32-bit quantity is probably naive.
diff --git a/src/lib/libc/net/getservent.c b/src/lib/libc/net/getservent.c
new file mode 100644
index 0000000000..c81a4cf3e2
--- /dev/null
+++ b/src/lib/libc/net/getservent.c
@@ -0,0 +1,168 @@
+/*      $OpenBSD: getservent.c,v 1.12 2007/09/02 15:19:17 deraadt Exp $ */
+/*
+ * Copyright (c) 1983, 1993
+ *      The Regents of the University of California.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <sys/types.h>
+#include <sys/socket.h>
+
+#include <errno.h>
+#include <limits.h>
+#include <netdb.h>
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+
+void
+setservent_r(int f, struct servent_data *sd)
+{
+        if (sd->fp == NULL)
+                sd->fp = fopen(_PATH_SERVICES, "r" );
+        else
+                rewind(sd->fp);
+        sd->stayopen |= f;
+}
+
+void
+endservent_r(struct servent_data *sd)
+{
+        if (sd->fp) {
+                fclose(sd->fp);
+                sd->fp = NULL;
+        }
+        free(sd->aliases);
+        sd->aliases = NULL;
+        sd->maxaliases = 0;
+        free(sd->line);
+        sd->line = NULL;
+        sd->stayopen = 0;
+}
+
+int
+getservent_r(struct servent *se, struct servent_data *sd)
+{
+        char *p, *cp, **q, *endp;
+        size_t len;
+        long l;
+        int serrno;
+
+        if (sd->fp == NULL && (sd->fp = fopen(_PATH_SERVICES, "r" )) == NULL)
+                return (-1);
+again:
+        if ((p = fgetln(sd->fp, &len)) == NULL)
+                return (-1);
+        if (len == 0 || *p == '#' || *p == '\n')
+                goto again;
+        if (p[len-1] == '\n')
+                len--;
+        if ((cp = memchr(p, '#', len)) != NULL)
+                len = cp - p;
+        cp = realloc(sd->line, len + 1);
+        if (cp == NULL)
+                return (-1);
+        sd->line = se->s_name = memcpy(cp, p, len);
+        cp[len] = '\0';
+        p = strpbrk(cp, " \t");
+        if (p == NULL)
+                goto again;
+        *p++ = '\0';
+        while (*p == ' ' || *p == '\t')
+                p++;
+        cp = strpbrk(p, ",/");
+        if (cp == NULL)
+                goto again;
+        *cp++ = '\0';
+        l = strtol(p, &endp, 10);
+        if (endp == p || *endp != '\0' || l < 0 || l > USHRT_MAX)
+                goto again;
+        se->s_port = htons((in_port_t)l);
+        se->s_proto = cp;
+        if (sd->aliases == NULL) {
+                sd->maxaliases = 10;
+                sd->aliases = calloc(sd->maxaliases, sizeof(char *));
+                if (sd->aliases == NULL) {
+                        serrno = errno;
+                        endservent_r(sd);
+                        errno = serrno;
+                        return (-1);
+                }
+        }
+        q = se->s_aliases = sd->aliases;
+        cp = strpbrk(cp, " \t");
+        if (cp != NULL)
+                *cp++ = '\0';
+        while (cp && *cp) {
+                if (*cp == ' ' || *cp == '\t') {
+                        cp++;
+                        continue;
+                }
+                if (q == &se->s_aliases[sd->maxaliases - 1]) {
+                        p = realloc(se->s_aliases,
+                            2 * sd->maxaliases * sizeof(char *));
+                        if (p == NULL) {
+                                serrno = errno;
+                                endservent_r(sd);
+                                errno = serrno;
+                                return (-1);
+                        }
+                        sd->maxaliases *= 2;
+                        q = (char **)p + (q - se->s_aliases);
+                        se->s_aliases = sd->aliases = (char **)p;
+                }
+                *q++ = cp;
+                cp = strpbrk(cp, " \t");
+                if (cp != NULL)
+                        *cp++ = '\0';
+        }
+        *q = NULL;
+        return (0);
+}
+
+struct servent_data _servent_data;      /* shared with getservby{name,port}.c */
+
+void
+setservent(int f)
+{
+        setservent_r(f, &_servent_data);
+}
+
+void
+endservent(void)
+{
+        endservent_r(&_servent_data);
+}
+
+struct servent *
+getservent(void)
+{
+        static struct servent serv;
+
+        if (getservent_r(&serv, &_servent_data) != 0)
+                return (NULL);
+        return (&serv);
+}
diff --git a/src/lib/libc/net/herror.c b/src/lib/libc/net/herror.c
new file mode 100644
index 0000000000..7787115a9d
--- /dev/null
+++ b/src/lib/libc/net/herror.c
@@ -0,0 +1,106 @@
+/*      $OpenBSD: herror.c,v 1.8 2005/08/06 20:30:03 espie Exp $        */
+
+/*
+ * ++Copyright++ 1987, 1993
+ * -
+ * Copyright (c) 1987, 1993
+ *    The Regents of the University of California.  All rights reserved.
+ * 
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ * 
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ * -
+ * Portions Copyright (c) 1993 by Digital Equipment Corporation.
+ * 
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies, and that
+ * the name of Digital Equipment Corporation not be used in advertising or
+ * publicity pertaining to distribution of the document or software without
+ * specific, written prior permission.
+ * 
+ * THE SOFTWARE IS PROVIDED "AS IS" AND DIGITAL EQUIPMENT CORP. DISCLAIMS ALL
+ * WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS.   IN NO EVENT SHALL DIGITAL EQUIPMENT
+ * CORPORATION BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
+ * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
+ * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS
+ * ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
+ * SOFTWARE.
+ * -
+ * --Copyright--
+ */
+
+#include <sys/types.h>
+#include <sys/param.h>
+#include <sys/uio.h>
+#include <netdb.h>
+#include <unistd.h>
+#include <string.h>
+
+const char * const h_errlist[] = {
+        "Resolver Error 0 (no error)",
+        "Unknown host",                         /* 1 HOST_NOT_FOUND */
+        "Host name lookup failure",             /* 2 TRY_AGAIN */
+        "Unknown server error",                 /* 3 NO_RECOVERY */
+        "No address associated with name",      /* 4 NO_ADDRESS */
+};
+const int       h_nerr = { sizeof h_errlist / sizeof h_errlist[0] };
+
+extern int      h_errno;
+
+/*
+ * herror --
+ *      print the error indicated by the h_errno value.
+ */
+void
+herror(const char *s)
+{
+        struct iovec iov[4];
+        struct iovec *v = iov;
+
+        if (s && *s) {
+                v->iov_base = (char *)s;
+                v->iov_len = strlen(s);
+                v++;
+                v->iov_base = ": ";
+                v->iov_len = 2;
+                v++;
+        }
+        v->iov_base = (char *)hstrerror(h_errno);
+        v->iov_len = strlen(v->iov_base);
+        v++;
+        v->iov_base = "\n";
+        v->iov_len = 1;
+        writev(STDERR_FILENO, iov, (v - iov) + 1);
+}
+
+const char *
+hstrerror(int err)
+{
+        if (err < 0)
+                return ("Resolver internal error");
+        else if (err < h_nerr)
+                return (h_errlist[err]);
+        return ("Unknown resolver error");
+}
diff --git a/src/lib/libc/net/htonl.c b/src/lib/libc/net/htonl.c
new file mode 100644
index 0000000000..5ab4189597
--- /dev/null
+++ b/src/lib/libc/net/htonl.c
@@ -0,0 +1,21 @@
+/*      $OpenBSD: htonl.c,v 1.6 2005/08/06 20:30:03 espie Exp $ */
+/*
+ * Written by J.T. Conklin <jtc@netbsd.org>.
+ * Public domain.
+ */
+
+#include <sys/types.h>
+#include <machine/endian.h>
+
+#undef htonl
+
+u_int32_t
+htonl(u_int32_t x)
+{
+#if BYTE_ORDER == LITTLE_ENDIAN
+        u_char *s = (u_char *)&x;
+        return (u_int32_t)(s[0] << 24 | s[1] << 16 | s[2] << 8 | s[3]);
+#else
+        return x;
+#endif
+}
diff --git a/src/lib/libc/net/htons.c b/src/lib/libc/net/htons.c
new file mode 100644
index 0000000000..c8b73fdbb7
--- /dev/null
+++ b/src/lib/libc/net/htons.c
@@ -0,0 +1,21 @@
+/*      $OpenBSD: htons.c,v 1.8 2005/08/06 20:30:03 espie Exp $ */
+/*
+ * Written by J.T. Conklin <jtc@netbsd.org>.
+ * Public domain.
+ */
+
+#include <sys/types.h>
+#include <machine/endian.h>
+
+#undef htons
+
+u_int16_t
+htons(u_int16_t x)
+{
+#if BYTE_ORDER == LITTLE_ENDIAN
+        u_char *s = (u_char *) &x;
+        return (u_int16_t)(s[0] << 8 | s[1]);
+#else
+        return x;
+#endif
+}
diff --git a/src/lib/libc/net/if_indextoname.3 b/src/lib/libc/net/if_indextoname.3
new file mode 100644
index 0000000000..5e6e7f2fdb
--- /dev/null
+++ b/src/lib/libc/net/if_indextoname.3
@@ -0,0 +1,143 @@
+.\"     $OpenBSD: if_indextoname.3,v 1.15 2014/01/21 03:15:45 schwarze Exp $
+.\" Copyright (c) 1983, 1991, 1993
+.\"     The Regents of the University of California.  All rights reserved.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\" 3. Neither the name of the University nor the names of its contributors
+.\"    may be used to endorse or promote products derived from this software
+.\"    without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.\"     From: @(#)rcmd.3        8.1 (Berkeley) 6/4/93
+.\"
+.Dd $Mdocdate: January 21 2014 $
+.Dt IF_NAMETOINDEX 3
+.Os
+.Sh NAME
+.Nm if_nametoindex ,
+.Nm if_indextoname ,
+.Nm if_nameindex ,
+.Nm if_freenameindex
+.Nd convert interface index to name, and vice versa
+.Sh SYNOPSIS
+.In sys/types.h
+.In sys/socket.h
+.In net/if.h
+.Ft "unsigned int"
+.Fn if_nametoindex "const char *ifname"
+.Ft "char *"
+.Fn if_indextoname "unsigned int ifindex" "char *ifname"
+.Ft "struct if_nameindex *"
+.Fn if_nameindex "void"
+.Ft "void"
+.Fn if_freenameindex "struct if_nameindex *ptr"
+.Sh DESCRIPTION
+These functions map interface indexes to interface names (such as
+.Dq lo0 ) ,
+and vice versa.
+.Pp
+The
+.Fn if_nametoindex
+function converts an interface name specified by the
+.Fa ifname
+argument to an interface index (positive integer value).
+If the specified interface does not exist, 0 will be returned.
+.Pp
+.Fn if_indextoname
+converts an interface index specified by the
+.Fa ifindex
+argument to an interface name.
+The
+.Fa ifname
+argument must point to a buffer of at least
+.Dv IF_NAMESIZE
+bytes into which the interface name corresponding to the specified index is
+returned.
+.Pf ( Dv IF_NAMESIZE
+is also defined in
+.In net/if.h
+and its value includes a terminating NUL byte at the end of the
+interface name.)
+This pointer is also the return value of the function.
+If there is no interface corresponding to the specified index,
+.Dv NULL
+is returned.
+.Pp
+.Fn if_nameindex
+returns an array of
+.Vt if_nameindex
+structures.
+.Vt if_nameindex
+is also defined in
+.In net/if.h ,
+and is as follows:
+.Bd -literal -offset indent
+struct if_nameindex {
+        unsigned int      if_index;     /* 1, 2, ... */
+        char             *if_name;      /* NUL-terminated name */
+};
+.Ed
+.Pp
+The end of the array of structures is indicated by a structure with
+an
+.Fa if_index
+of 0 and an
+.Fa if_name
+of
+.Dv NULL .
+The function returns a null pointer on error.
+The memory used for this array of structures along with the interface
+names pointed to by the
+.Fa if_name
+members is obtained dynamically.
+This memory is freed by the
+.Fn if_freenameindex
+function.
+.Pp
+.Fn if_freenameindex
+takes a pointer that was returned by
+.Fn if_nameindex
+as argument
+.Pq Fa ptr ,
+and it reclaims the region allocated.
+.Sh DIAGNOSTICS
+.Fn if_nametoindex
+returns 0 on error, positive integer on success.
+.Fn if_indextoname
+and
+.Fn if_nameindex
+return
+.Dv NULL
+on errors.
+.Sh SEE ALSO
+.Xr getifaddrs 3 ,
+.Xr networking 4
+.Sh STANDARDS
+.Rs
+.%A R. Gilligan
+.%A S. Thomson
+.%A J. Bound
+.%A J. McCann
+.%A W. Stevens
+.%D February 2003
+.%R RFC 3493
+.%T Basic Socket Interface Extensions for IPv6
+.Re
diff --git a/src/lib/libc/net/if_indextoname.c b/src/lib/libc/net/if_indextoname.c
new file mode 100644
index 0000000000..f99e52e387
--- /dev/null
+++ b/src/lib/libc/net/if_indextoname.c
@@ -0,0 +1,86 @@
+/*      $OpenBSD: if_indextoname.c,v 1.9 2002/03/07 22:40:23 millert Exp $      */
+/*      $KAME: if_indextoname.c,v 1.6 2000/11/07 22:33:25 jinmei Exp $  */
+
+/*-
+ * Copyright (c) 1997, 2000
+ *      Berkeley Software Design, Inc.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *
+ * THIS SOFTWARE IS PROVIDED BY Berkeley Software Design, Inc. ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL Berkeley Software Design, Inc. BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ *      BSDI Id: if_indextoname.c,v 2.3 2000/04/17 22:38:05 dab Exp
+ */
+
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <net/if_dl.h>
+#include <net/if.h>
+#include <ifaddrs.h>
+#include <stdlib.h>
+#include <string.h>
+#include <errno.h>
+
+/*
+ * From RFC 2533:
+ *
+ * The second function maps an interface index into its corresponding
+ * name.
+ *
+ *    #include <net/if.h>
+ *
+ *    char  *if_indextoname(unsigned int ifindex, char *ifname);
+ *
+ * The ifname argument must point to a buffer of at least IF_NAMESIZE
+ * bytes into which the interface name corresponding to the specified
+ * index is returned.  (IF_NAMESIZE is also defined in <net/if.h> and
+ * its value includes a terminating null byte at the end of the
+ * interface name.) This pointer is also the return value of the
+ * function.  If there is no interface corresponding to the specified
+ * index, NULL is returned, and errno is set to ENXIO, if there was a
+ * system error (such as running out of memory), if_indextoname returns
+ * NULL and errno would be set to the proper value (e.g., ENOMEM).
+ */
+
+char *
+if_indextoname(unsigned int ifindex, char *ifname)
+{
+        struct ifaddrs *ifaddrs, *ifa;
+        int error = 0;
+
+        if (getifaddrs(&ifaddrs) < 0)
+                return(NULL);   /* getifaddrs properly set errno */
+
+        for (ifa = ifaddrs; ifa != NULL; ifa = ifa->ifa_next) {
+                if (ifa->ifa_addr &&
+                    ifa->ifa_addr->sa_family == AF_LINK &&
+                    ifindex == ((struct sockaddr_dl*)ifa->ifa_addr)->sdl_index)
+                        break;
+        }
+
+        if (ifa == NULL) {
+                error = ENXIO;
+                ifname = NULL;
+        }
+        else
+                strlcpy(ifname, ifa->ifa_name, IFNAMSIZ);
+
+        freeifaddrs(ifaddrs);
+
+        errno = error;
+        return(ifname);
+}
diff --git a/src/lib/libc/net/if_nameindex.c b/src/lib/libc/net/if_nameindex.c
new file mode 100644
index 0000000000..c5a771869b
--- /dev/null
+++ b/src/lib/libc/net/if_nameindex.c
@@ -0,0 +1,146 @@
+/*      $OpenBSD: if_nameindex.c,v 1.10 2010/09/24 13:29:29 claudio Exp $       */
+/*      $KAME: if_nameindex.c,v 1.7 2000/11/24 08:17:20 itojun Exp $    */
+
+/*-
+ * Copyright (c) 1997, 2000
+ *      Berkeley Software Design, Inc.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *
+ * THIS SOFTWARE IS PROVIDED BY Berkeley Software Design, Inc. ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL Berkeley Software Design, Inc. BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ *      BSDI Id: if_nameindex.c,v 2.3 2000/04/17 22:38:05 dab Exp
+ */
+
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <net/if_dl.h>
+#include <net/if.h>
+#include <ifaddrs.h>
+#include <stdlib.h>
+#include <string.h>
+
+/*
+ * From RFC 2553:
+ *
+ * 4.3 Return All Interface Names and Indexes
+ *
+ *    The if_nameindex structure holds the information about a single
+ *    interface and is defined as a result of including the <net/if.h>
+ *    header.
+ *
+ *       struct if_nameindex {
+ *         unsigned int   if_index;
+ *         char          *if_name;
+ *       };
+ *
+ *    The final function returns an array of if_nameindex structures, one
+ *    structure per interface.
+ *
+ *       struct if_nameindex  *if_nameindex(void);
+ *
+ *    The end of the array of structures is indicated by a structure with
+ *    an if_index of 0 and an if_name of NULL.  The function returns a NULL
+ *    pointer upon an error, and would set errno to the appropriate value.
+ *
+ *    The memory used for this array of structures along with the interface
+ *    names pointed to by the if_name members is obtained dynamically.
+ *    This memory is freed by the next function.
+ *
+ * 4.4.  Free Memory
+ *
+ *    The following function frees the dynamic memory that was allocated by
+ *    if_nameindex().
+ *
+ *        #include <net/if.h>
+ *
+ *        void  if_freenameindex(struct if_nameindex *ptr);
+ *
+ *    The argument to this function must be a pointer that was returned by
+ *    if_nameindex().
+ */
+
+struct if_nameindex *
+if_nameindex(void)
+{
+        struct ifaddrs *ifaddrs, *ifa;
+        unsigned int ni;
+        size_t nbytes;
+        struct if_nameindex *ifni, *ifni2;
+        char *cp;
+
+        if (getifaddrs(&ifaddrs) < 0)
+                return(NULL);
+
+        /*
+         * First, find out how many interfaces there are, and how
+         * much space we need for the string names.
+         */
+        ni = 0;
+        nbytes = 0;
+        for (ifa = ifaddrs; ifa != NULL; ifa = ifa->ifa_next) {
+                if (ifa->ifa_addr &&
+                    ifa->ifa_addr->sa_family == AF_LINK) {
+                        nbytes += strlen(ifa->ifa_name) + 1;
+                        ni++;
+                }
+        }
+
+        /*
+         * Next, allocate a chunk of memory, use the first part
+         * for the array of structures, and the last part for
+         * the strings.
+         */
+        cp = malloc((ni + 1) * sizeof(struct if_nameindex) + nbytes);
+        ifni = (struct if_nameindex *)cp;
+        if (ifni == NULL)
+                goto out;
+        cp += (ni + 1) * sizeof(struct if_nameindex);
+
+        /*
+         * Now just loop through the list of interfaces again,
+         * filling in the if_nameindex array and making copies
+         * of all the strings.
+         */
+        ifni2 = ifni;
+        for (ifa = ifaddrs; ifa != NULL; ifa = ifa->ifa_next) {
+                if (ifa->ifa_addr &&
+                    ifa->ifa_addr->sa_family == AF_LINK) {
+                        ifni2->if_index =
+                            ((struct sockaddr_dl*)ifa->ifa_addr)->sdl_index;
+                        ifni2->if_name = cp;
+                        nbytes = strlen(ifa->ifa_name) + 1;
+                        memcpy(cp, ifa->ifa_name, nbytes);
+                        ifni2++;
+                        cp += nbytes;
+                }
+        }
+        /*
+         * Finally, don't forget to terminate the array.
+         */
+        ifni2->if_index = 0;
+        ifni2->if_name = NULL;
+out:
+        freeifaddrs(ifaddrs);
+        return(ifni);
+}
+
+void
+if_freenameindex(struct if_nameindex *ptr)
+{
+        free(ptr);
+}
diff --git a/src/lib/libc/net/if_nametoindex.c b/src/lib/libc/net/if_nametoindex.c
new file mode 100644
index 0000000000..8bd792b949
--- /dev/null
+++ b/src/lib/libc/net/if_nametoindex.c
@@ -0,0 +1,81 @@
+/*      $OpenBSD: if_nametoindex.c,v 1.8 2002/03/07 22:40:23 millert Exp $      */
+/*      $KAME: if_nametoindex.c,v 1.5 2000/11/24 08:04:40 itojun Exp $  */
+
+/*-
+ * Copyright (c) 1997, 2000
+ *      Berkeley Software Design, Inc.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *
+ * THIS SOFTWARE IS PROVIDED BY Berkeley Software Design, Inc. ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL Berkeley Software Design, Inc. BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ *      BSDI Id: if_nametoindex.c,v 2.3 2000/04/17 22:38:05 dab Exp
+ */
+
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <net/if.h>
+#include <net/if_dl.h>
+#include <ifaddrs.h>
+#include <stdlib.h>
+#include <string.h>
+#include <errno.h>
+
+/*
+ * From RFC 2553:
+ *
+ * 4.1 Name-to-Index
+ *
+ *
+ *    The first function maps an interface name into its corresponding
+ *    index.
+ *
+ *       #include <net/if.h>
+ *
+ *       unsigned int  if_nametoindex(const char *ifname);
+ *
+ *    If the specified interface name does not exist, the return value is
+ *    0, and errno is set to ENXIO.  If there was a system error (such as
+ *    running out of memory), the return value is 0 and errno is set to the
+ *    proper value (e.g., ENOMEM).
+ */
+
+unsigned int
+if_nametoindex(const char *ifname)
+{
+        struct ifaddrs *ifaddrs, *ifa;
+        unsigned int ni;
+
+        if (getifaddrs(&ifaddrs) < 0)
+                return(0);
+
+        ni = 0;
+
+        for (ifa = ifaddrs; ifa != NULL; ifa = ifa->ifa_next) {
+                if (ifa->ifa_addr &&
+                    ifa->ifa_addr->sa_family == AF_LINK &&
+                    strcmp(ifa->ifa_name, ifname) == 0) {
+                        ni = ((struct sockaddr_dl*)ifa->ifa_addr)->sdl_index;
+                        break;
+                }
+        }
+
+        freeifaddrs(ifaddrs);
+        if (!ni)
+                errno = ENXIO;
+        return(ni);
+}
diff --git a/src/lib/libc/net/inet.3 b/src/lib/libc/net/inet.3
new file mode 100644
index 0000000000..e56ca0a59a
--- /dev/null
+++ b/src/lib/libc/net/inet.3
@@ -0,0 +1,355 @@
+.\"     $OpenBSD: inet.3,v 1.26 2013/06/05 03:39:23 tedu Exp $
+.\"     $NetBSD: inet.3,v 1.7 1997/06/18 02:25:24 lukem Exp $
+.\"
+.\" Copyright (c) 1983, 1990, 1991, 1993
+.\"     The Regents of the University of California.  All rights reserved.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\" 3. Neither the name of the University nor the names of its contributors
+.\"    may be used to endorse or promote products derived from this software
+.\"    without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.\"     @(#)inet.3      8.1 (Berkeley) 6/4/93
+.\"
+.Dd $Mdocdate: June 5 2013 $
+.Dt INET 3
+.Os
+.Sh NAME
+.Nm inet_aton ,
+.Nm inet_addr ,
+.Nm inet_network ,
+.Nm inet_pton ,
+.Nm inet_ntop ,
+.Nm inet_ntoa ,
+.Nm inet_makeaddr ,
+.Nm inet_netof ,
+.Nm inet_lnaof
+.Nd Internet address manipulation routines
+.Sh SYNOPSIS
+.In sys/types.h
+.In sys/socket.h
+.In netinet/in.h
+.In arpa/inet.h
+.Ft int
+.Fn inet_aton "const char *cp" "struct in_addr *addr"
+.Ft in_addr_t
+.Fn inet_addr "const char *cp"
+.Ft in_addr_t
+.Fn inet_network "const char *cp"
+.Ft int
+.Fn inet_pton "int af" "const char *src" "void *dst"
+.Ft const char *
+.Fn inet_ntop "int af" "const void *src" "char *dst" "socklen_t size"
+.Ft char *
+.Fn inet_ntoa "struct in_addr in"
+.Ft struct in_addr
+.Fn inet_makeaddr "in_addr_t net" "in_addr_t lna"
+.Ft in_addr_t
+.Fn inet_netof "struct in_addr in"
+.Ft in_addr_t
+.Fn inet_lnaof "struct in_addr in"
+.Sh DESCRIPTION
+The routines
+.Fn inet_aton ,
+.Fn inet_addr ,
+and
+.Fn inet_network
+interpret character strings representing
+numbers expressed in the Internet standard
+.Dq dot
+notation.
+.Pp
+The
+.Fn inet_aton
+routine interprets the specified character string as an Internet address,
+placing the address into the structure provided.
+It returns 1 if the string was successfully interpreted,
+or 0 if the string was invalid.
+.Pp
+The
+.Fn inet_addr
+and
+.Fn inet_network
+functions return numbers suitable for use
+as Internet addresses and Internet network
+numbers, respectively.
+Both functions return the constant
+.Dv INADDR_NONE
+if the specified character string is malformed.
+.Pp
+The
+.Fn inet_pton
+function converts a presentation format address (that is, printable form
+as held in a character string) to network format (usually a
+.Li struct in_addr
+or some other internal binary representation, in network byte order).
+It returns 1 if the address was valid for the specified address family;
+0 if the address wasn't parseable in the specified address family; or \-1
+if some system error occurred (in which case
+.Va errno
+will have been set).
+This function is presently valid for
+.Dv AF_INET
+and
+.Dv AF_INET6 .
+.Pp
+The function
+.Fn inet_ntop
+converts an address from network format (usually a
+.Li struct in_addr
+or some other binary form, in network byte order) to presentation format
+(suitable for external display purposes).
+It returns
+.Dv NULL
+if a system
+error occurs (in which case,
+.Va errno
+will have been set), or it returns a pointer to the destination string.
+.Pp
+The routine
+.Fn inet_ntoa
+takes an Internet address and returns an
+ASCII string representing the address in dot notation.
+.Pp
+The routine
+.Fn inet_makeaddr
+takes an Internet network number and a local
+network address and constructs an Internet address
+from it.
+.Pp
+The routines
+.Fn inet_netof
+and
+.Fn inet_lnaof
+break apart Internet host addresses, returning
+the network number and local network address part,
+respectively.
+.Pp
+All Internet addresses are returned in network
+order (bytes ordered from left to right).
+All network numbers and local address parts are
+returned as machine format integer values.
+.Sh INTERNET ADDRESSES (IP VERSION 4)
+Values specified using dot notation take one of the following forms:
+.Bd -literal -offset indent
+a.b.c.d
+a.b.c
+a.b
+a
+.Ed
+.Pp
+When four parts are specified, each is interpreted
+as a byte of data and assigned, from left to right,
+to the four bytes of an Internet address.
+Note that when an Internet address is viewed as a 32-bit
+integer quantity on a system that uses little-endian
+byte order
+(such as the Intel 386, 486 and Pentium processors)
+the bytes referred to above appear as
+.Dq Li d.c.b.a .
+That is, little-endian bytes are ordered from right to left.
+.Pp
+When a three part address is specified, the last
+part is interpreted as a 16-bit quantity and placed
+in the rightmost two bytes of the network address.
+This makes the three part address format convenient
+for specifying Class B network addresses as
+.Dq Li 128.net.host .
+.Pp
+When a two part address is supplied, the last part
+is interpreted as a 24-bit quantity and placed in
+the rightmost three bytes of the network address.
+This makes the two part address format convenient
+for specifying Class A network addresses as
+.Dq Li net.host .
+.Pp
+When only one part is given, the value is stored
+directly in the network address without any byte
+rearrangement.
+.Pp
+All numbers supplied as
+.Dq parts
+in a dot notation
+may be decimal, octal, or hexadecimal, as specified
+in the C language (i.e., a leading 0x or 0X implies
+hexadecimal; a leading 0 implies octal;
+otherwise, the number is interpreted as decimal).
+.Sh INTERNET ADDRESSES (IP VERSION 6)
+In order to support scoped IPv6 addresses,
+.Xr getaddrinfo 3
+and
+.Xr getnameinfo 3
+are recommended rather than the functions presented here.
+.Pp
+The presentation format of an IPv6 address is given in RFC 4291:
+.Pp
+There are three conventional forms for representing IPv6 addresses as
+text strings:
+.Bl -enum
+.It
+The preferred form is x:x:x:x:x:x:x:x, where the 'x's are the
+hexadecimal values of the eight 16-bit pieces of the address.
+Examples:
+.Bd -literal -offset indent
+FEDC:BA98:7654:3210:FEDC:BA98:7654:3210
+1080:0:0:0:8:800:200C:417A
+.Ed
+.Pp
+Note that it is not necessary to write the leading zeros in an
+individual field, but there must be at least one numeral in
+every field (except for the case described in 2.).
+.It
+Due to the method of allocating certain styles of IPv6
+addresses, it will be common for addresses to contain long
+strings of zero bits.
+In order to make writing addresses
+containing zero bits easier, a special syntax is available to
+compress the zeros.
+The use of
+.Dq \&:\&:
+indicates multiple groups
+of 16 bits of zeros.
+The
+.Dq \&:\&:
+can only appear once in an
+address.
+The
+.Dq \&:\&:
+can also be used to compress the leading and/or trailing zeros in an address.
+.Pp
+For example the following addresses:
+.Bd -literal -offset indent
+1080:0:0:0:8:800:200C:417A  a unicast address
+FF01:0:0:0:0:0:0:43         a multicast address
+0:0:0:0:0:0:0:1             the loopback address
+0:0:0:0:0:0:0:0             the unspecified addresses
+.Ed
+.Pp
+may be represented as:
+.Bd -literal -offset indent
+1080::8:800:200C:417A       a unicast address
+FF01::43                    a multicast address
+::1                         the loopback address
+::                          the unspecified addresses
+.Ed
+.It
+An alternative form that is sometimes more convenient when
+dealing with a mixed environment of IPv4 and IPv6 nodes is
+x:x:x:x:x:x:d.d.d.d, where the 'x's are the hexadecimal values
+of the six high-order 16-bit pieces of the address, and the 'd's
+are the decimal values of the four low-order 8-bit pieces of the
+address (standard IPv4 representation).
+Examples:
+.Bd -literal -offset indent
+0:0:0:0:0:0:13.1.68.3
+0:0:0:0:0:FFFF:129.144.52.38
+.Ed
+.Pp
+or in compressed form:
+.Bd -literal -offset indent
+::13.1.68.3
+::FFFF:129.144.52.38
+.Ed
+.El
+.Sh SEE ALSO
+.Xr byteorder 3 ,
+.Xr gethostbyname 3 ,
+.Xr getnetent 3 ,
+.Xr inet_net 3 ,
+.Xr hosts 5 ,
+.Xr networks 5
+.Sh STANDARDS
+The
+.Nm inet_ntop
+and
+.Nm inet_pton
+functions conform to the IETF IPv6 BSD API and address formatting
+specifications.
+Note that
+.Nm inet_pton
+does not accept 1-, 2-, or 3-part dotted addresses; all four parts
+must be specified.
+This is a narrower input set than that accepted by
+.Nm inet_aton .
+.Pp
+.Rs
+.%A R. Gilligan
+.%A S. Thomson
+.%A J. Bound
+.%A J. McCann
+.%A W. Stevens
+.%D February 2003
+.%R RFC 3493
+.%T Basic Socket Interface Extensions for IPv6
+.Re
+.Pp
+.Rs
+.%A R. Hinden
+.%A S. Deering
+.%D February 2006
+.%R RFC 4291
+.%T IP Version 6 Addressing Architecture
+.Re
+.Sh HISTORY
+The
+.Nm inet_addr ,
+.Nm inet_network ,
+.Nm inet_makeaddr ,
+.Nm inet_lnaof ,
+and
+.Nm inet_netof
+functions appeared in
+.Bx 4.2 .
+The
+.Nm inet_aton
+and
+.Nm inet_ntoa
+functions appeared in
+.Bx 4.3 .
+The
+.Nm inet_pton
+and
+.Nm inet_ntop
+functions appeared in BIND 4.9.4.
+.Sh BUGS
+The value
+.Dv INADDR_NONE
+(0xffffffff) is a valid broadcast address, but
+.Fn inet_addr
+cannot return that value without indicating failure.
+Also,
+.Fn inet_addr
+should have been designed to return a
+.Li struct in_addr .
+The newer
+.Fn inet_aton
+function does not share these problems, and almost all existing code
+should be modified to use
+.Fn inet_aton
+instead.
+.Pp
+The problem of host byte ordering versus network byte ordering is
+confusing.
+.Pp
+The string returned by
+.Fn inet_ntoa
+resides in a static memory area.
diff --git a/src/lib/libc/net/inet6_opt_init.3 b/src/lib/libc/net/inet6_opt_init.3
new file mode 100644
index 0000000000..dd7ab53f6f
--- /dev/null
+++ b/src/lib/libc/net/inet6_opt_init.3
@@ -0,0 +1,328 @@
+.\"     $OpenBSD: inet6_opt_init.3,v 1.6 2014/01/21 03:15:45 schwarze Exp $
+.\"     $KAME: inet6_opt_init.3,v 1.7 2004/12/27 05:08:23 itojun Exp $
+.\"
+.\" Copyright (C) 2004 WIDE Project.
+.\" All rights reserved.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\" 3. Neither the name of the project nor the names of its contributors
+.\"    may be used to endorse or promote products derived from this software
+.\"    without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
+.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.Dd $Mdocdate: January 21 2014 $
+.Dt INET6_OPT_INIT 3
+.Os
+.\"
+.Sh NAME
+.Nm inet6_opt_init ,
+.Nm inet6_opt_append ,
+.Nm inet6_opt_finish ,
+.Nm inet6_opt_set_val ,
+.Nm inet6_opt_next ,
+.Nm inet6_opt_find ,
+.Nm inet6_opt_get_val
+.Nd IPv6 Hop-by-Hop and Destination Options manipulation
+.\"
+.Sh SYNOPSIS
+.In netinet/in.h
+.Ft "int"
+.Fn inet6_opt_init "void *extbuf" "socklen_t extlen"
+.Ft "int"
+.Fn inet6_opt_append "void *extbuf" "socklen_t extlen" "int offset" "u_int8_t type" "socklen_t len" "u_int8_t align" "void **databufp"
+.Ft "int"
+.Fn inet6_opt_finish "void *extbuf" "socklen_t extlen" "int offset"
+.Ft "int"
+.Fn inet6_opt_set_val "void *databuf" "int offset" "void *val" "socklen_t vallen"
+.Ft "int"
+.Fn inet6_opt_next "void *extbuf" "socklen_t extlen" "int offset" "u_int8_t *typep" "socklen_t *lenp" "void **databufp"
+.Ft "int"
+.Fn inet6_opt_find "void *extbuf" "socklen_t extlen" "int offset" "u_int8_t type" "socklen_t *lenp" "void **databufp"
+.Ft "int"
+.Fn inet6_opt_get_val "void *databuf" "socklen_t offset" "void *val" "socklen_t vallen"
+.\"
+.Sh DESCRIPTION
+Building and parsing the Hop-by-Hop and Destination options is
+complicated.
+The advanced sockets API defines a set of functions to
+help applications create and manipulate Hop-by-Hop and Destination
+options.
+These functions use the
+formatting rules specified in Appendix B in RFC 2460, i.e. that the
+largest field is placed last in the option.
+The function prototypes
+for these functions are all contained in the header file
+.In netinet/in.h .
+.\"
+.Ss inet6_opt_init
+The
+.Fn inet6_opt_init
+function
+returns the number of bytes needed for an empty
+extension header, one without any options.
+If the
+.Va extbuf
+argument points to a valid section of memory
+then the
+.Fn inet6_opt_init
+function also initializes the extension header's length field.
+When attempting to initialize an extension buffer passed in the
+.Va extbuf
+argument,
+.Fa extlen
+must be a positive multiple of 8 or else the function fails and
+returns \-1 to the caller.
+.\"
+.Ss inet6_opt_append
+The
+.Fn inet6_opt_append
+function can perform different jobs.
+When a valid
+.Fa extbuf
+argument is supplied it appends an option to the extension buffer and
+returns the updated total length as well as a pointer to the newly
+created option in
+.Fa databufp .
+If the value
+of
+.Fa extbuf
+is
+.Dv NULL
+then the
+.Fn inet6_opt_append
+function only reports what the total length would
+be if the option were actually appended.
+The
+.Fa len
+and
+.Fa align
+arguments specify the length of the option and the required data
+alignment which must be used when appending the option.
+The
+.Fa offset
+argument should be the length returned by the
+.Fn inet6_opt_init
+function or a previous call to
+.Fn inet6_opt_append .
+.Pp
+The
+.Fa type
+argument is the 8-bit option type.
+.Pp
+After
+.Fn inet6_opt_append
+has been called, the application can use the buffer pointed to by
+.Fa databufp
+directly, or use
+.Fn inet6_opt_set_val
+to specify the data to be contained in the option.
+.Pp
+Option types of
+.Li 0
+and
+.Li 1
+are reserved for the
+.Li Pad1
+and
+.Li PadN
+options.
+All other values from 2 through 255 may be used by applications.
+.Pp
+The length of the option data is contained in an 8-bit value and so
+may contain any value from 0 through 255.
+.Pp
+The
+.Fa align
+parameter must have a value of 1, 2, 4, or 8 and cannot exceed the
+value of
+.Fa len .
+The alignment values represent no alignment, 16-bit, 32-bit and 64-bit
+alignments respectively.
+.\"
+.Ss inet6_opt_finish
+The
+.Fn inet6_opt_finish
+calculates the final padding necessary to make the extension header a
+multiple of 8 bytes, as required by the IPv6 extension header
+specification, and returns the extension header's updated total
+length.
+The
+.Fa offset
+argument should be the length returned by
+.Fn inet6_opt_init
+or
+.Fn inet6_opt_append .
+When
+.Fa extbuf
+is not
+.Dv NULL
+the function also sets up the appropriate padding bytes by inserting a
+Pad1 or PadN option of the proper length.
+.Pp
+If the extension header is too small to contain the proper padding
+then an error of \-1 is returned to the caller.
+.\"
+.Ss inet6_opt_set_val
+The
+.Fn inet6_opt_set_val
+function inserts data items of various sizes into the data portion of
+the option.
+The
+.Fa databuf
+argument is a pointer to memory that was returned by the
+.Fn inet6_opt_append
+call and the
+.Fa offset
+argument specifies where the option should be placed in the
+data buffer.
+The
+.Fa val
+argument points to an area of memory containing the data to be
+inserted into the extension header, and the
+.Fa vallen
+argument indicates how much data to copy.
+.Pp
+The caller should ensure that each field is aligned on its natural
+boundaries as described in Appendix B of RFC 2460.
+.Pp
+The function returns the offset for the next field which is calculated as
+.Fa offset
++
+.Fa vallen
+and is used when composing options with multiple fields.
+.\"
+.Ss inet6_opt_next
+The
+.Fn inet6_opt_next
+function parses received extension headers.
+The
+.Fa extbuf
+and
+.Fa extlen
+arguments specify the location and length of the extension header
+being parsed.
+The
+.Fa offset
+argument should either be zero, for the first option, or the length value
+returned by a previous call to
+.Fn inet6_opt_next
+or
+.Fn inet6_opt_find .
+The return value specifies the position where to continue scanning the
+extension buffer.
+The option is returned in the arguments
+.Fa typep , lenp ,
+and
+.Fa databufp .
+.Fa typep , lenp ,
+and
+.Fa databufp
+point to the 8-bit option type, the 8-bit option length and the option
+data respectively.
+This function does not return any PAD1 or PADN options.
+When an error occurs or there are no more options the return
+value is \-1.
+.\"
+.Ss inet6_opt_find
+The
+.Fn inet6_opt_find
+function searches the extension buffer for a particular option type,
+passed in through the
+.Fa type
+argument.
+If the option is found then the
+.Fa lenp
+and
+.Fa databufp
+arguments are updated to point to the option's length and data
+respectively.
+.Fa extbuf
+and
+.Fa extlen
+must point to a valid extension buffer and give its length.
+The
+.Fa offset
+argument can be used to search from a location anywhere in the
+extension header.
+.Ss inet6_opt_get_val
+The
+.Fn inet6_opt_get_val
+function extracts data items of various sizes in the data portion of
+the option.
+The
+.Fa databuf
+is a pointer returned by the
+.Fn inet6_opt_next
+or
+.Fn inet6_opt_find
+functions.
+The
+.Fa val
+argument points to where the data will be extracted.
+The
+.Fa offset
+argument specifies from where in the data portion of the option the
+value should be extracted; the first byte of option data is specified
+by an offset of zero.
+.Pp
+It is expected that each field is aligned on its natural boundaries as
+described in Appendix B of RFC 2460.
+.Pp
+The function returns the offset for the next field
+by calculating
+.Fa offset
++
+.Fa vallen
+which can be used when extracting option content with multiple fields.
+Robust receivers must verify alignment before calling this function.
+.\"
+.Sh EXAMPLES
+RFC 3542 gives comprehensive examples in Section 23.
+KAME also provides examples in the
+.Pa advapitest
+directory of its kit.
+.\"
+.Sh DIAGNOSTICS
+All the functions return
+\-1
+on an error.
+.\"
+.Sh STANDARDS
+.Rs
+.%A S. Deering
+.%A R. Hinden
+.%D December 1998
+.%R RFC 2460
+.%T Internet Protocol, Version 6 (IPv6) Specification
+.Re
+.Pp
+.Rs
+.%A W. Stevens
+.%A M. Thomas
+.%A E. Nordmark
+.%A T. Jinmei
+.%D May 2003
+.%R RFC 3542
+.%T Advanced Sockets Application Program Interface (API) for IPv6
+.Re
+.Sh HISTORY
+The implementation first appeared in KAME advanced networking kit.
+.\"
diff --git a/src/lib/libc/net/inet6_option_space.3 b/src/lib/libc/net/inet6_option_space.3
new file mode 100644
index 0000000000..4b156636f7
--- /dev/null
+++ b/src/lib/libc/net/inet6_option_space.3
@@ -0,0 +1,442 @@
+.\"     $OpenBSD: inet6_option_space.3,v 1.24 2014/01/21 03:15:45 schwarze Exp $
+.\"     $KAME: inet6_option_space.3,v 1.11 2005/01/05 03:00:44 itojun Exp $
+.\"
+.\" Copyright (C) 2004 WIDE Project.
+.\" All rights reserved.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\" 3. Neither the name of the project nor the names of its contributors
+.\"    may be used to endorse or promote products derived from this software
+.\"    without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
+.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.Dd $Mdocdate: January 21 2014 $
+.Dt INET6_OPTION_SPACE 3
+.Os
+.\"
+.Sh NAME
+.Nm inet6_option_space ,
+.Nm inet6_option_init ,
+.Nm inet6_option_append ,
+.Nm inet6_option_alloc ,
+.Nm inet6_option_next ,
+.Nm inet6_option_find
+.Nd IPv6 Hop-by-Hop and Destination Option Manipulation
+.\"
+.Sh SYNOPSIS
+.In sys/types.h
+.In netinet/in.h
+.Ft "int"
+.Fn inet6_option_space "int nbytes"
+.Ft "int"
+.Fn inet6_option_init "void *bp" "struct cmsghdr **cmsgp" "int type"
+.Ft "int"
+.Fn inet6_option_append "struct cmsghdr *cmsg" "const u_int8_t *typep" "int multx" "int plusy"
+.Ft "u_int8_t *"
+.Fn inet6_option_alloc "struct cmsghdr *cmsg" "int datalen" "int multx" "int plusy"
+.Ft "int"
+.Fn inet6_option_next "const struct cmsghdr *cmsg" "u_int8_t **tptrp"
+.Ft "int"
+.Fn inet6_option_find "const struct cmsghdr *cmsg" "u_int8_t **tptrp" "int type"
+.\"
+.Sh DESCRIPTION
+.\"
+Note:
+RFC 2292 has been superseded by RFC 3542.
+The use of functions described in this page is deprecated.
+See
+.Xr inet6_opt_init 3 .
+.Pp
+Manipulating and parsing IPv6's Hop-by-Hop and Destination options is
+complicated by the need to properly align and pad data as well as the
+need to manipulate ancillary information that is not part of the data
+stream.
+RFC 2292 defines a set of functions, which are implemented as
+part of the Kame libraries, to help developers create, change,
+and parse Hop-by-Hop and Destination options.
+All of the prototypes
+for the option functions are defined in the
+.In netinet/in.h
+header file.
+.\"
+.Ss inet6_option_space
+In order to determine the amount of space necessary to hold any option
+the
+.Fn inet6_option_space
+function is called.
+It returns the number of bytes required to hold
+an option when it is stored as ancillary data, including the
+.Li cmsghdr
+structure at the beginning, and any necessary padding at the end.
+The
+.Fa nbytes
+argument indicates the size of the structure defining the option,
+and must include any pad bytes at the beginning (the value
+.Li y
+in the alignment term
+.Dq Li "xn + y" ) ,
+the type byte, the length byte, and the option data.
+.Pp
+Note: If multiple options are stored in a single ancillary data
+object, which is the recommended technique, the
+.Fn inet6_option_space
+function overestimates the amount of space required by the size of
+.Li N-1
+.Li cmsghdr
+structures, where
+.Li N
+is the number of options to be stored in the object.
+Usually this has
+no impact because it is assumed that most Hop-by-Hop and Destination
+option headers carry only one option as indicated in appendix B of RFC 2460.
+.\"
+.Ss inet6_option_init
+The
+.Fn inet6_option_init
+function is called to initialize any ancillary data object that will contain
+a Hop-by-Hop or Destination option.
+It returns
+.Li 0
+on success and
+.Li \-1
+when an error occurs.
+.Pp
+The
+.Fa bp
+argument points to a previously allocated area of memory which must be
+large enough to contain all the arguments that the application intends
+to add later via the
+.Fn inet6_option_append
+and
+.Fn inet6_option_alloc
+routines.
+.Pp
+The
+.Fa cmsgp
+argument is a pointer to a pointer to a
+.Li cmsghdr
+structure.
+The
+.Fa *cmsgp
+argument
+points to a
+.Li cmsghdr
+structure which is constructed by this function and stored in the
+area of memory pointed to by
+.Fa bp .
+.Pp
+The
+.Fa type
+is either
+.Dv IPV6_HOPOPTS
+or
+.Dv IPV6_DSTOPTS
+and is stored in the
+.Li cmsg_type
+member of the
+.Li cmsghdr
+structure mentioned above.
+.\"
+.Ss inet6_option_append
+This function appends a Hop-by-Hop option or a Destination option into
+an ancillary data object previously initialized by a call to
+.Fn inet6_option_init .
+The
+.Fn inet6_option_append
+function returns
+.Li 0
+if it succeeds or
+.Li \-1
+when an error occurs.
+.Pp
+The
+.Fa cmsg
+argument is a pointer to the
+.Li cmsghdr
+structure that was initialized by a call to
+.Fn inet6_option_init .
+.Pp
+The
+.Fa typep
+argument is a pointer to the 8-bit option type.
+All options are
+encoded as type-length-value tuples and it is assumed that
+the
+.Fa typep
+field is immediately followed by the 8-bit option data length field,
+which is then followed by the option data.
+.Pp
+The option types of
+.Li 0
+and
+.Li 1
+are reserved for the
+.Li Pad1
+and
+.Li PadN
+options respectively.
+All other values from
+.Li 2
+through
+.Li 255
+are available for applications to use.
+.Pp
+The option data length, since it is stored in 8 bites, must have a
+value between
+.Li 0
+and
+.Li 255 ,
+inclusive.
+.Pp
+The
+.Fa multx
+argument
+is the value
+.Li x
+in the alignment term
+.Dq Li xn + y
+and indicates the byte alignment necessary for the data.
+Alignments may be specified as
+.Li 1 ,
+.Li 2 ,
+.Li 4 ,
+or
+.Li 8
+bytes, which is no alignment, 16-bit, 32-bit and 64-bit alignments
+respectively.
+.Pp
+The
+.Fa plusy
+argument
+is the value
+.Li y
+in the alignment term
+.Dq Li xn + y
+and must have a value between
+.Li 0
+and
+.Li 7 ,
+inclusive, indicating the amount of padding that is necessary for an
+option.
+.\"
+.Ss inet6_option_alloc
+The
+.Fn inet6_option_alloc
+function appends a Hop-by-Hop option or a Destination option into an
+ancillary data object that has previously been initialized by a call to
+.Fn inet6_option_init .
+A successful call to the
+.Fn inet6_option_alloc
+function returns a pointer to the 8-bit option type field,
+which is at the beginning of the allocated region.
+.Fn inet6_option_alloc
+returns
+.Dv NULL
+when an error has occurred.
+.Pp
+The difference between the
+.Fn inet6_option_alloc
+and
+.Fn inet6_option_append
+functions is that the latter copies the contents of a previously built
+option into the ancillary data object while the former returns a
+pointer to the place in the data object where the option's TLV must
+then be built by the application.
+.Pp
+The
+.Fa cmsg
+argument is a pointer to a
+.Li cmsghdr
+structure that was initialized by
+.Fn inet6_option_init .
+.Pp
+The
+.Fa datalen
+argument is the value of the option data length byte for this option.
+This value is required as an argument to allow the function to
+determine if padding must be appended at the end of the option.
+(The
+.Fn inet6_option_append
+function does not need a data length argument
+since the option data length must already be stored by the caller.)
+.Pp
+The
+.Fa multx
+and
+.Fa plusy
+arguments
+are identical to the arguments of the same name described in the
+.Fn inet6_option_init
+function above.
+.\"
+.Ss inet6_option_next
+The
+.Fn inet6_option_next
+function is used to process Hop-by-Hop and Destination options that
+are present in an ancillary data object.
+When an option remains to
+be processed, the return value of the
+.Fn inet6_option_next
+function is
+.Li 0
+and the
+.Fa *tptrp
+argument points to the 8-bit option type field, which is followed by
+the 8-bit option data length, and then the option data.
+When no more
+options remain to be processed, the return value is
+.Li \-1
+and
+.Fa *tptrp
+is
+.Dv NULL .
+When an error occurs, the return value is
+.Li \-1 ,
+but the
+.Fa *tptrp
+argument is not
+.Dv NULL .
+This set of return values allows a program to easily loop through all
+the options in an ancillary data object, checking for the error and
+end of stream conditions along the way.
+.Pp
+When a valid option is returned, the
+.Fa cmsg
+argument points to a
+.Li cmsghdr
+where the
+.Li cmsg_level
+element equals
+.Dv IPPROTO_IPV6
+and the
+.Li cmsg_type
+element is either
+.Dv IPV6_HOPOPTS
+or
+.Dv IPV6_DSTOPTS .
+.Pp
+The
+.Fa tptrp
+argument is a pointer to a pointer to an 8-bit byte and
+.Fa *tptrp
+is used by the function to remember its place in the ancillary data
+object each time the function is called.
+When the
+.Fn inet6_option_next
+function is called for the first time on a given ancillary data object,
+.Fa *tptrp
+must be set to
+.Dv NULL .
+.Pp
+Each time the function returns success,
+the
+.Fa *tptrp
+argument points to the 8-bit option type field for the next option to
+be processed.
+.\"
+.Ss inet6_option_find
+The
+.Fn inet6_option_find
+function allows an application to search for a particular option type
+in an ancillary data object.
+The
+.Fa cmsg
+argument is a pointer to a
+.Li cmsghdr
+structure in which the
+.Li cmsg_level
+element equals
+.Dv IPPROTO_IPV6
+and the
+.Li cmsg_type
+element is either
+.Dv IPV6_HOPOPTS
+or
+.Dv IPV6_DSTOPTS .
+.Pp
+The
+.Fa tptrp
+argument is handled exactly as in the
+.Fn inet6_option_next
+function described above.
+.Pp
+The
+.Fn inet6_option_find
+function starts searching for an option of the specified type
+beginning after the value of
+.Fa *tptrp .
+.\"
+.Sh EXAMPLES
+RFC 2292 gives comprehensive examples in chapter 6.
+.\"
+.Sh DIAGNOSTICS
+The
+.Fn inet6_option_init
+and
+.Fn inet6_option_append
+functions return
+.Li 0
+on success or
+.Li \-1
+on an error.
+.Pp
+The
+.Fn inet6_option_alloc
+function returns
+.Dv NULL
+on an error.
+.Pp
+When
+.Fn inet6_option_next
+or
+.Fn inet6_option_find
+detect an error they return
+.Li \-1 ,
+setting
+.Fa *tptrp
+to a non
+.Dv NULL
+value.
+.\"
+.Sh SEE ALSO
+.Xr inet6 4 ,
+.Xr ip6 4
+.\"
+.Sh STANDARDS
+.Rs
+.%A W. Stevens
+.%A M. Thomas
+.%D February 1998
+.%R RFC 2292
+.%T Advanced Sockets API for IPv6
+.Re
+.Pp
+.Rs
+.%A S. Deering
+.%A R. Hinden
+.%D December 1998
+.%R RFC 2460
+.%T Internet Protocol, Version 6 (IPv6) Specification
+.Re
+.\"
+.Sh HISTORY
+This implementation first appeared in the KAME advanced networking kit.
+.\"
diff --git a/src/lib/libc/net/inet6_rth_space.3 b/src/lib/libc/net/inet6_rth_space.3
new file mode 100644
index 0000000000..fcd023481f
--- /dev/null
+++ b/src/lib/libc/net/inet6_rth_space.3
@@ -0,0 +1,220 @@
+.\"     $OpenBSD: inet6_rth_space.3,v 1.6 2014/01/21 03:15:45 schwarze Exp $
+.\"     $KAME: inet6_rth_space.3,v 1.7 2005/01/05 03:00:44 itojun Exp $
+.\"
+.\" Copyright (C) 2004 WIDE Project.
+.\" All rights reserved.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\" 3. Neither the name of the project nor the names of its contributors
+.\"    may be used to endorse or promote products derived from this software
+.\"    without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
+.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.Dd $Mdocdate: January 21 2014 $
+.Dt INET6_RTH_SPACE 3
+.Os
+.\"
+.Sh NAME
+.Nm inet6_rth_space ,
+.Nm inet6_rth_init ,
+.Nm inet6_rth_add ,
+.Nm inet6_rth_reverse ,
+.Nm inet6_rth_segments ,
+.Nm inet6_rth_getaddr
+.Nd IPv6 Routing Header Options manipulation
+.\"
+.Sh SYNOPSIS
+.In netinet/in.h
+.Ft socklen_t
+.Fn inet6_rth_space "int" "int"
+.Ft "void *"
+.Fn inet6_rth_init "void *" "socklen_t" "int" "int"
+.Ft int
+.Fn inet6_rth_add "void *" "const struct in6_addr *"
+.Ft int
+.Fn inet6_rth_reverse "const void *" "void *"
+.Ft int
+.Fn inet6_rth_segments "const void *"
+.Ft "struct in6_addr *"
+.Fn inet6_rth_getaddr "const void *" "int"
+.\"
+.Sh DESCRIPTION
+The IPv6 Advanced API, RFC 3542, defines the functions that an
+application calls to build and examine IPv6 Routing headers.
+Routing headers are used to perform source routing in IPv6 networks.
+The RFC uses the word
+.Dq segments
+to describe addresses and that is the term used here as well.
+All of the functions are defined in the header file
+.In netinet/in.h .
+The functions described in this manual page all operate
+on routing header structures which are defined in
+.In netinet/ip6.h
+but which should not need to be modified outside the use of this API.
+The size and shape of the route header structures may change, so using
+the APIs is a more portable, long term, solution.
+.Pp
+The functions in the API are split into two groups, those that build a
+routing header and those that parse a received routing header.
+The builder functions are described first, followed by the parser functions.
+.Ss inet6_rth_space
+The
+.Fn inet6_rth_space
+function returns the number of bytes required to hold a Routing Header
+of the type, specified in the
+.Fa type
+argument and containing the number of addresses specified in the
+.Fa segments
+argument.
+When the type is
+.Dv IPV6_RTHDR_TYPE_0
+the number of segments must be from 0 through 127.
+The return value from this function is the number of bytes required to
+store the routing header.
+If the value 0 is returned then either the
+route header type was not recognized or another error occurred.
+.Ss inet6_rth_init
+The
+.Fn inet6_rth_init
+function initializes the pre-allocated buffer pointed to by
+.Fa bp
+to contain a routing header of the specified type.
+The
+.Fa bp_len
+argument is used to verify that the buffer is large enough.
+The caller must allocate the buffer pointed to by bp.
+The necessary buffer size should be determined by calling
+.Fn inet6_rth_space
+described in the previous sections.
+.Pp
+The
+.Fn inet6_rth_init
+function returns a pointer to
+.Fa bp
+on success and
+.Dv NULL
+when there is an error.
+.Ss inet6_rth_add
+The
+.Fn inet6_rth_add
+function adds the IPv6 address pointed to by
+.Fa addr
+to the end of the routing header being constructed.
+.Pp
+A successful addition results in the function returning 0, otherwise
+\-1 is returned.
+.Ss inet6_rth_reverse
+The
+.Fn inet6_rth_reverse
+function takes a routing header, pointed to by the
+argument
+.Fa in ,
+and writes a new routing header into the argument pointed to by
+.Fa out .
+The routing header at that sends datagrams along the reverse of that
+route.
+Both arguments are allowed to point to the same buffer meaning
+that the reversal can occur in place.
+.Pp
+The return value of the function is 0 on success, or \-1 when
+there is an error.
+.\"
+.Pp
+The next set of functions operate on a routing header that the
+application wants to parse.
+In the usual case such a routing header
+is received from the network, although these functions can also be
+used with routing headers that the application itself created.
+.Ss inet6_rth_segments
+The
+.Fn inet6_rth_segments
+function returns the number of segments contained in the
+routing header pointed to by
+.Fa bp .
+The return value is the number of segments contained in the routing
+header, or \-1 if an error occurred.
+It is not an error for 0 to be
+returned as a routing header may contain 0 segments.
+.\"
+.Ss inet6_rth_getaddr
+The
+.Fn inet6_rth_getaddr
+function is used to retrieve a single address from a routing header.
+The
+.Fa index
+is the location in the routing header from which the application wants
+to retrieve an address.
+The
+.Fa index
+parameter must have a value between 0 and one less than the number of
+segments present in the routing header.
+The
+.Fn inet6_rth_segments
+function, described in the last section, should be used to determine
+the total number of segments in the routing header.
+The
+.Fn inet6_rth_getaddr
+function returns a pointer to an IPv6 address on success or
+.Dv NULL
+when an error has occurred.
+.\"
+.Sh EXAMPLES
+RFC 3542 gives extensive examples in Section 21, Appendix B.
+KAME also provides examples in the advapitest directory of its kit.
+.\"
+.Sh DIAGNOSTICS
+The
+.Fn inet6_rth_space
+and
+.Fn inet6_rth_getaddr
+functions return 0 on errors.
+.Pp
+The
+.Fn inet6_rthdr_init
+function returns
+.Dv NULL
+on error.
+The
+.Fn inet6_rth_add
+and
+.Fn inet6_rth_reverse
+functions return 0 on success, or \-1 upon an error.
+.\"
+.Sh STANDARDS
+.Rs
+.%A S. Deering
+.%A R. Hinden
+.%D December 1998
+.%R RFC 2460
+.%T Internet Protocol, Version 6 (IPv6) Specification
+.Re
+.Pp
+.Rs
+.%A W. Stevens
+.%A M. Thomas
+.%A E. Nordmark
+.%A T. Jinmei
+.%D May 2003
+.%R RFC 3542
+.%T Advanced Sockets Application Programming Interface (API) for IPv6
+.Re
+.Sh HISTORY
+The implementation first appeared in KAME advanced networking kit.
diff --git a/src/lib/libc/net/inet6_rthdr_space.3 b/src/lib/libc/net/inet6_rthdr_space.3
new file mode 100644
index 0000000000..c72e84ff1a
--- /dev/null
+++ b/src/lib/libc/net/inet6_rthdr_space.3
@@ -0,0 +1,310 @@
+.\"     $OpenBSD: inet6_rthdr_space.3,v 1.23 2014/01/21 03:15:45 schwarze Exp $
+.\"     $KAME: inet6_rthdr_space.3,v 1.11 2005/01/05 03:00:44 itojun Exp $
+.\"
+.\" Copyright (C) 2004 WIDE Project.
+.\" All rights reserved.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\" 3. Neither the name of the project nor the names of its contributors
+.\"    may be used to endorse or promote products derived from this software
+.\"    without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
+.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.Dd $Mdocdate: January 21 2014 $
+.Dt INET6_RTHDR_SPACE 3
+.Os
+.\"
+.Sh NAME
+.Nm inet6_rthdr_space ,
+.Nm inet6_rthdr_init ,
+.Nm inet6_rthdr_add ,
+.Nm inet6_rthdr_lasthop ,
+.Nm inet6_rthdr_reverse ,
+.Nm inet6_rthdr_segments ,
+.Nm inet6_rthdr_getaddr ,
+.Nm inet6_rthdr_getflags
+.Nd IPv6 Routing Header Options Manipulation
+.\"
+.Sh SYNOPSIS
+.In sys/types.h
+.In netinet/in.h
+.Ft size_t
+.Fn inet6_rthdr_space "int type" "int segments"
+.Ft "struct cmsghdr *"
+.Fn inet6_rthdr_init "void *bp" "int type"
+.Ft int
+.Fn inet6_rthdr_add "struct cmsghdr *cmsg" "const struct in6_addr *addr" "unsigned int flags"
+.Ft int
+.Fn inet6_rthdr_lasthop "struct cmsghdr *cmsg" "unsigned int flags"
+.Ft int
+.Fn inet6_rthdr_reverse "const struct cmsghdr *in" "struct cmsghdr *out"
+.Ft int
+.Fn inet6_rthdr_segments "const struct cmsghdr *cmsg"
+.Ft "struct in6_addr *"
+.Fn inet6_rthdr_getaddr "struct cmsghdr *cmsg" "int index"
+.Ft int
+.Fn inet6_rthdr_getflags "const struct cmsghdr *cmsg" "int index"
+.\"
+.Sh DESCRIPTION
+Note:
+RFC 2292 has been superseded by RFC 3542.
+The use of functions described in this page is deprecated.
+See
+.Xr inet6_rth_space 3 .
+.Pp
+The RFC 2292 IPv6 Advanced API defined eight functions for
+applications to use for building and parsing routing headers.
+The
+eight functions are split into two groups, the first of which builds
+the header and the second of which can parse it.
+The function prototypes for these functions are all in the
+.In netinet/in.h
+header.
+Although direct manipulation of a routing header is possible,
+this set of APIs make it unnecessary and such direct manipulation
+should be avoided so that changes to the underlying structures do not
+break applications.
+.Pp
+Please note that RFC 2292 uses the term
+.Dq segments
+instead of the term
+.Dq addresses
+but they are considered equivalent for this manual page.
+.\"
+.Ss inet6_rthdr_space
+The
+.Fn inet6_rthdr_space
+function returns the number of bytes required to hold a routing header
+of the specified
+.Fa type
+and containing the specified number of
+.Fa segments .
+Only one
+.Fa type
+is supported,
+.Dv IPV6_RTHDR_TYPE_0 ,
+and it can hold from 1 to 23 segments.
+The return value includes the
+size of the
+.Vt cmsghdr
+structure that precedes the routing header and
+any required padding.
+.Pp
+A return value of 0 indicates an error.
+Either the type was specified
+incorrectly, or the number of segments was less than one or greater
+than 23.
+.Pp
+Note: The
+.Fn inet6_rthdr_space
+function only returns the size required by the routing header and does
+not allocate memory for the caller.
+.\"
+.Ss inet6_rthdr_init
+The
+.Fn inet6_rthdr_init
+function initializes a buffer, pointed to by
+.Fa bp
+with an appropriate
+.Li cmsghdr
+structure followed by a routing header of the specified
+.Fa type .
+.Pp
+The caller must use the
+.Fn inet6_rthdr_space
+function to determine the size of the buffer, and then allocate that
+buffer before calling
+.Fn inet6_rthdr_init .
+.Pp
+The return value is a pointer to a
+.Li cmsghdr
+structure, which is used as the first argument to the
+.Fn inet6_rthdr_add
+and
+.Fn inet6_rthdr_lasthop
+functions in order to construct the routing header.
+When an error occurs the return value is
+.Dv NULL .
+.\"
+.Ss inet6_rthdr_add
+The
+.Fn inet6_rthdr_add
+function adds the IPv6 address pointed to by
+.Fa addr
+to the end of the
+routing header being constructed and sets the type of this address to the
+value of
+.Fa flags .
+The
+.Fa flags
+must be either
+.Dv IPV6_RTHDR_LOOSE
+or
+.Dv IPV6_RTHDR_STRICT
+indicating whether loose or strict source routing is required.
+.Pp
+When the function succeeds it returns 0, otherwise \-1 is returned.
+.\"
+.Ss inet6_rthdr_lasthop
+The
+.Fn inet6_rthdr_lasthop
+function specifies the strict or loose flag for the final hop of a
+routing header.
+The
+.Fa flags
+argument must be either
+.Dv IPV6_RTHDR_LOOSE
+or
+.Dv IPV6_RTHDR_STRICT .
+.Pp
+The return value of the function is 0 upon success, and \-1 when an
+error has occurred.
+.Pp
+Please note that a routing header specifying
+.Li N
+intermediate nodes requires
+.Li N+1
+strict or loose flags meaning that
+.Fn inet6_rthdr_add
+must be called
+.Li N
+times and then
+.Fn inet6_rthdr_lasthop
+must be called once.
+.\"
+.Ss inet6_rthdr_reverse
+This function was never implemented.
+.Pp
+The following three functions provide an API for parsing a received
+routing header:
+.\"
+.Ss inet6_rthdr_segments
+The
+.Fn inet6_rthdr_segments
+function returns the number of segments contained in the routing
+header pointed to by the
+.Fa cmsg
+argument.
+On success the return value is from 1 to 23.
+When an error occurs, \-1 is returned.
+.\"
+.Ss inet6_rthdr_getaddr
+The
+.Fn inet6_rthdr_getaddr
+function returns a pointer to the IPv6 address specified by the
+.Fa index
+argument from the routing header pointed to by
+.Fa cmsg .
+The index must be between 1 and the number returned by
+.Fn inet6_rthdr_segments ,
+described above.
+An application must call
+.Fn inet6_rthdr_segments
+to obtain the number of segments in the routing header.
+.Pp
+If an error occurs,
+.Dv NULL
+is returned.
+.\"
+.Ss inet6_rthdr_getflags
+The
+.Fn inet6_rthdr_getflags
+function returns the flags value of the segment specified by
+.Fa index
+of the routing header pointed to by
+.Fa cmsg .
+The
+.Fa index
+argument must be between 0 and the value returned by
+.Fn inet6_rthdr_segments .
+The return value will be either
+.Dv IPV6_RTHDR_LOOSE
+or
+.Dv IPV6_RTHDR_STRICT
+indicating whether loose or strict source routing was requested for
+that segment.
+.Pp
+When an error occurs, \-1 is returned.
+.Pp
+Note: Flags begin at index 0 while segments begin at index 1, to
+maintain consistency with the terminology and figures in RFC 2460.
+.\"
+.Sh EXAMPLES
+RFC 2292 gives comprehensive examples in chapter 8.
+.\"
+.Sh DIAGNOSTICS
+The
+.Fn inet6_rthdr_space
+function returns 0 when an error occurs.
+.Pp
+The
+.Fn inet6_rthdr_add
+and
+.Fn inet6_rthdr_lasthop
+functions return 0 on success, and \-1 on error.
+.Pp
+The
+.Fn inet6_rthdr_init
+and
+.Fn inet6_rthdr_getaddr
+functions
+return
+.Dv NULL
+on error.
+.Pp
+The
+.Fn inet6_rthdr_segments
+and
+.Fn inet6_rthdr_getflags
+functions return \-1 on error.
+.\"
+.Sh SEE ALSO
+.Xr inet6 4 ,
+.Xr ip6 4
+.Sh STANDARDS
+.Rs
+.%A W. Stevens
+.%A M. Thomas
+.%D February 1998
+.%R RFC 2292
+.%T Advanced Sockets API for IPv6
+.Re
+.Pp
+.Rs
+.%A S. Deering
+.%A R. Hinden
+.%D December 1998
+.%R RFC 2460
+.%T Internet Protocol, Version 6 (IPv6) Specification
+.Re
+.\"
+.Sh HISTORY
+This implementation first appeared in the KAME advanced networking kit.
+.\"
+.Sh BUGS
+The
+.Fn inet6_rthdr_reverse
+function was never implemented.
+.\".Pp
+.\"This API is deprecated in favor of
+.\".Xr inet6_rth_space 3
+.\".Sh SEE ALSO
+.\".Xr inet6_rth_space 3
diff --git a/src/lib/libc/net/inet_addr.c b/src/lib/libc/net/inet_addr.c
new file mode 100644
index 0000000000..18762ab522
--- /dev/null
+++ b/src/lib/libc/net/inet_addr.c
@@ -0,0 +1,175 @@
+/*      $OpenBSD: inet_addr.c,v 1.10 2013/11/24 23:51:28 deraadt Exp $  */
+
+/*
+ * ++Copyright++ 1983, 1990, 1993
+ * -
+ * Copyright (c) 1983, 1990, 1993
+ *    The Regents of the University of California.  All rights reserved.
+ * 
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ * 
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ * -
+ * Portions Copyright (c) 1993 by Digital Equipment Corporation.
+ * 
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies, and that
+ * the name of Digital Equipment Corporation not be used in advertising or
+ * publicity pertaining to distribution of the document or software without
+ * specific, written prior permission.
+ * 
+ * THE SOFTWARE IS PROVIDED "AS IS" AND DIGITAL EQUIPMENT CORP. DISCLAIMS ALL
+ * WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS.   IN NO EVENT SHALL DIGITAL EQUIPMENT
+ * CORPORATION BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
+ * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
+ * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS
+ * ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
+ * SOFTWARE.
+ * -
+ * --Copyright--
+ */
+
+#include <sys/types.h>
+#include <sys/param.h>
+#include <netinet/in.h>
+#include <arpa/inet.h>
+#include <ctype.h>
+
+/*
+ * Ascii internet address interpretation routine.
+ * The value returned is in network order.
+ */
+in_addr_t
+inet_addr(const char *cp)
+{
+        struct in_addr val;
+
+        if (inet_aton(cp, &val))
+                return (val.s_addr);
+        return (INADDR_NONE);
+}
+
+/* 
+ * Check whether "cp" is a valid ascii representation
+ * of an Internet address and convert to a binary address.
+ * Returns 1 if the address is valid, 0 if not.
+ * This replaces inet_addr, the return value from which
+ * cannot distinguish between failure and a local broadcast address.
+ */
+int
+inet_aton(const char *cp, struct in_addr *addr)
+{
+        in_addr_t val;
+        int base, n;
+        char c;
+        u_int parts[4];
+        u_int *pp = parts;
+
+        c = *cp;
+        for (;;) {
+                /*
+                 * Collect number up to ``.''.
+                 * Values are specified as for C:
+                 * 0x=hex, 0=octal, isdigit=decimal.
+                 */
+                if (!isdigit((unsigned char)c))
+                        return (0);
+                val = 0; base = 10;
+                if (c == '0') {
+                        c = *++cp;
+                        if (c == 'x' || c == 'X')
+                                base = 16, c = *++cp;
+                        else
+                                base = 8;
+                }
+                for (;;) {
+                        if (isascii((unsigned char)c) &&
+                            isdigit((unsigned char)c)) {
+                                val = (val * base) + (c - '0');
+                                c = *++cp;
+                        } else if (base == 16 &&
+                            isascii((unsigned char)c) &&
+                            isxdigit((unsigned char)c)) {
+                                val = (val << 4) |
+                                    (c + 10 - (islower((unsigned char)c) ? 'a' : 'A'));
+                                c = *++cp;
+                        } else
+                                break;
+                }
+                if (c == '.') {
+                        /*
+                         * Internet format:
+                         *      a.b.c.d
+                         *      a.b.c   (with c treated as 16 bits)
+                         *      a.b     (with b treated as 24 bits)
+                         */
+                        if (pp >= parts + 3)
+                                return (0);
+                        *pp++ = val;
+                        c = *++cp;
+                } else
+                        break;
+        }
+        /*
+         * Check for trailing characters.
+         */
+        if (c != '\0' &&
+            (!isascii((unsigned char)c) || !isspace((unsigned char)c)))
+                return (0);
+        /*
+         * Concoct the address according to
+         * the number of parts specified.
+         */
+        n = pp - parts + 1;
+        switch (n) {
+
+        case 0:
+                return (0);             /* initial nondigit */
+
+        case 1:                         /* a -- 32 bits */
+                break;
+
+        case 2:                         /* a.b -- 8.24 bits */
+                if ((val > 0xffffff) || (parts[0] > 0xff))
+                        return (0);
+                val |= parts[0] << 24;
+                break;
+
+        case 3:                         /* a.b.c -- 8.8.16 bits */
+                if ((val > 0xffff) || (parts[0] > 0xff) || (parts[1] > 0xff))
+                        return (0);
+                val |= (parts[0] << 24) | (parts[1] << 16);
+                break;
+
+        case 4:                         /* a.b.c.d -- 8.8.8.8 bits */
+                if ((val > 0xff) || (parts[0] > 0xff) || (parts[1] > 0xff) || (parts[2] > 0xff))
+                        return (0);
+                val |= (parts[0] << 24) | (parts[1] << 16) | (parts[2] << 8);
+                break;
+        }
+        if (addr)
+                addr->s_addr = htonl(val);
+        return (1);
+}
diff --git a/src/lib/libc/net/inet_lnaof.c b/src/lib/libc/net/inet_lnaof.c
new file mode 100644
index 0000000000..b1a58cd2c1
--- /dev/null
+++ b/src/lib/libc/net/inet_lnaof.c
@@ -0,0 +1,51 @@
+/*      $OpenBSD: inet_lnaof.c,v 1.6 2005/08/06 20:30:03 espie Exp $ */
+/*
+ * Copyright (c) 1983, 1993
+ *      The Regents of the University of California.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <sys/param.h>
+#include <netinet/in.h>
+#include <arpa/inet.h>
+
+/*
+ * Return the local network address portion of an
+ * internet address; handles class a/b/c network
+ * number formats.
+ */
+in_addr_t
+inet_lnaof(struct in_addr in)
+{
+        in_addr_t i = ntohl(in.s_addr);
+
+        if (IN_CLASSA(i))
+                return ((i)&IN_CLASSA_HOST);
+        else if (IN_CLASSB(i))
+                return ((i)&IN_CLASSB_HOST);
+        else
+                return ((i)&IN_CLASSC_HOST);
+}
diff --git a/src/lib/libc/net/inet_makeaddr.c b/src/lib/libc/net/inet_makeaddr.c
new file mode 100644
index 0000000000..87d9325231
--- /dev/null
+++ b/src/lib/libc/net/inet_makeaddr.c
@@ -0,0 +1,54 @@
+/*      $OpenBSD: inet_makeaddr.c,v 1.6 2005/08/06 20:30:03 espie Exp $ */
+/*
+ * Copyright (c) 1983, 1993
+ *      The Regents of the University of California.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <sys/param.h>
+#include <netinet/in.h>
+#include <arpa/inet.h>
+
+/*
+ * Formulate an Internet address from network + host.  Used in
+ * building addresses stored in the ifnet structure.
+ */
+struct in_addr
+inet_makeaddr(in_addr_t net, in_addr_t host)
+{
+        in_addr_t addr;
+
+        if (net < 128)
+                addr = (net << IN_CLASSA_NSHIFT) | (host & IN_CLASSA_HOST);
+        else if (net < 65536)
+                addr = (net << IN_CLASSB_NSHIFT) | (host & IN_CLASSB_HOST);
+        else if (net < 16777216L)
+                addr = (net << IN_CLASSC_NSHIFT) | (host & IN_CLASSC_HOST);
+        else
+                addr = net | host;
+        addr = htonl(addr);
+        return (*(struct in_addr *)&addr);
+}
diff --git a/src/lib/libc/net/inet_net.3 b/src/lib/libc/net/inet_net.3
new file mode 100644
index 0000000000..a0231b4537
--- /dev/null
+++ b/src/lib/libc/net/inet_net.3
@@ -0,0 +1,197 @@
+.\"     $OpenBSD: inet_net.3,v 1.16 2013/06/05 03:39:23 tedu Exp $
+.\"     $NetBSD: inet_net.3,v 1.1 1997/06/18 02:25:27 lukem Exp $
+.\"
+.\" Copyright (c) 1997 The NetBSD Foundation, Inc.
+.\" All rights reserved.
+.\"
+.\" This code is derived from software contributed to The NetBSD Foundation
+.\" by Luke Mewburn.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
+.\" ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
+.\" TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+.\" PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE
+.\" LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+.\" CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+.\" SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+.\" INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+.\" CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+.\" ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+.\" POSSIBILITY OF SUCH DAMAGE.
+.\"
+.Dd $Mdocdate: June 5 2013 $
+.Dt INET_NET 3
+.Os
+.Sh NAME
+.Nm inet_net_ntop ,
+.Nm inet_net_pton
+.Nd Internet network number manipulation routines
+.Sh SYNOPSIS
+.In sys/types.h
+.In sys/socket.h
+.In netinet/in.h
+.In arpa/inet.h
+.Ft char *
+.Fn inet_net_ntop "int af" "const void *src" "int bits" "char *dst" "size_t size"
+.Ft int
+.Fn inet_net_pton "int af" "const char *src" "void *dst" "size_t size"
+.Sh DESCRIPTION
+The
+.Fn inet_net_ntop
+function converts an Internet network number from network format (usually a
+.Li struct in_addr
+or some other binary form, in network byte order) to CIDR presentation format
+(suitable for external display purposes).
+.Fa bits
+is the number of bits in
+.Fa src
+that are the network number.
+It returns
+.Dv NULL
+if a system error occurs (in which case,
+.Va errno
+will have been set), or it returns a pointer to the destination string.
+.Pp
+The
+.Fn inet_net_pton
+function converts a presentation format Internet network number (that is,
+printable form as held in a character string) to network format (usually a
+.Li struct in_addr
+or some other internal binary representation, in network byte order).
+It returns the number of bits (either computed based on the class, or
+specified with /CIDR), or \-1 if a failure occurred
+(in which case
+.Va errno
+will have been set.
+It will be set to
+.Er ENOENT
+if the Internet network number was not valid).
+.Pp
+Caution:
+The
+.Fa dst
+field should be zeroed before calling
+.Fn inet_net_pton
+as the function will only fill the number of bytes necessary to
+encode the network number in network byte order.
+.Pp
+The only values for
+.Fa af
+currently supported are
+.Dv AF_INET
+and
+.Dv AF_INET6 .
+.Fa size
+is the size of the result buffer
+.Fa dst .
+.Sh NETWORK NUMBERS (IP VERSION 4)
+The external representation of Internet network numbers may be specified in
+one of the following forms:
+.Bd -literal -offset indent
+a
+a.b
+a.b.c
+a.b.c.d
+.Ed
+.Pp
+Any of the above four forms may have
+.Dq Li /bits
+appended where
+.Dq Li bits
+is in the range
+.Li 0-32
+and is used to explicitly specify the number of bits in the network address.
+When
+.Dq Li /bits
+is not specified the number of bits in the network address is calculated
+as the larger of the number of bits in the class to which the address
+belongs and the number of bits provided rounded up modulo 8.
+Examples:
+.Pp
+.Bl -tag -width 10.1.2.3/24 -offset indent -compact
+.It Li 10
+an 8-bit network number (class A), value
+.Li 10.0.0.0 .
+.It Li 192
+a 24-bit network number (class C), value
+.Li 192.0.0.0 .
+.It Li 10.10
+a 16-bit network number, value
+.Li 10.10.0.0 .
+.It Li 10.1.2
+a 24-bit network number, value
+.Li 10.1.2.0 .
+.It Li 10.1.2.3
+a 32-bit network number, value
+.Li 10.1.2.3 .
+.It Li 10.1.2.3/24
+a 24-bit network number (explicit), value
+.Li 10.1.2.3 .
+.El
+.Pp
+Note that when the number of bits is specified using
+.Dq Li /bits
+notation, the value of the address still includes all bits supplied
+in the external representation, even those bits which are the host
+part of an Internet address.
+Also, unlike
+.Xr inet_pton 3
+where the external representation is assumed to be a host address, the
+external representation for
+.Fn inet_net_pton
+is assumed to be a network address.
+Thus
+.Dq Li 10.1
+is assumed to be
+.Dq Li 10.1.0.0
+not
+.Dq Li 10.0.0.1
+.Pp
+All numbers supplied as
+.Dq parts
+in a
+.Ql \&.
+notation
+may be decimal, octal, or hexadecimal, as specified
+in the C language (i.e., a leading 0x or 0X implies
+hexadecimal; otherwise, a leading 0 implies octal;
+otherwise, the number is interpreted as decimal).
+.Sh NETWORK NUMBERS (IP VERSION 6)
+See
+.Xr inet_pton 3
+for valid external representations of IP version 6 addresses.
+A valid external representation may have
+.Dq Li /bits
+appended where
+.Dq Li bits
+is in the range
+.Li 0-128
+and is used to explicitly specify the number of bits in the network address.
+When
+.Dq Li /bits
+is not specified 128 is used.
+Note that when the number of bits is specified using
+.Dq Li /bits
+notation, the value of the address still includes all bits supplied
+in the external representation, even those bits which are the host
+part of an Internet address.
+.Sh SEE ALSO
+.Xr byteorder 3 ,
+.Xr inet 3 ,
+.Xr inet_pton 3 ,
+.Xr networks 5
+.Sh HISTORY
+The
+.Nm inet_net_ntop
+and
+.Nm inet_net_pton
+functions first appeared in BIND 4.9.4.
diff --git a/src/lib/libc/net/inet_net_ntop.c b/src/lib/libc/net/inet_net_ntop.c
new file mode 100644
index 0000000000..35ae7909d3
--- /dev/null
+++ b/src/lib/libc/net/inet_net_ntop.c
@@ -0,0 +1,162 @@
+/*      $OpenBSD: inet_net_ntop.c,v 1.7 2012/06/22 19:13:37 gilles Exp $        */
+
+/*
+ * Copyright (c) 2012 by Gilles Chehade <gilles@openbsd.org>
+ * Copyright (c) 1996 by Internet Software Consortium.
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND INTERNET SOFTWARE CONSORTIUM DISCLAIMS
+ * ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL INTERNET SOFTWARE
+ * CONSORTIUM BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
+ * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
+ * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS
+ * ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
+ * SOFTWARE.
+ */
+
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <netinet/in.h>
+#include <arpa/inet.h>
+
+#include <errno.h>
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+
+static char *inet_net_ntop_ipv4(const u_char *, int, char *, size_t);
+static char *inet_net_ntop_ipv6(const u_char *, int, char *, size_t);
+
+/*
+ * char *
+ * inet_net_ntop(af, src, bits, dst, size)
+ *      convert network number from network to presentation format.
+ *      generates CIDR style result always.
+ * return:
+ *      pointer to dst, or NULL if an error occurred (check errno).
+ * author:
+ *      Paul Vixie (ISC), July 1996
+ */
+char *
+inet_net_ntop(int af, const void *src, int bits, char *dst, size_t size)
+{
+        switch (af) {
+        case AF_INET:
+                return (inet_net_ntop_ipv4(src, bits, dst, size));
+        case AF_INET6:
+                return (inet_net_ntop_ipv6(src, bits, dst, size));
+        default:
+                errno = EAFNOSUPPORT;
+                return (NULL);
+        }
+}
+
+/*
+ * static char *
+ * inet_net_ntop_ipv4(src, bits, dst, size)
+ *      convert IPv4 network number from network to presentation format.
+ *      generates CIDR style result always.
+ * return:
+ *      pointer to dst, or NULL if an error occurred (check errno).
+ * note:
+ *      network byte order assumed.  this means 192.5.5.240/28 has
+ *      0x11110000 in its fourth octet.
+ * author:
+ *      Paul Vixie (ISC), July 1996
+ */
+static char *
+inet_net_ntop_ipv4(const u_char *src, int bits, char *dst, size_t size)
+{
+        char *odst = dst;
+        u_int m;
+        int b;
+        char *ep;
+        int advance;
+
+        ep = dst + size;
+        if (ep <= dst)
+                goto emsgsize;
+
+        if (bits < 0 || bits > 32) {
+                errno = EINVAL;
+                return (NULL);
+        }
+        if (bits == 0) {
+                if (ep - dst < sizeof "0")
+                        goto emsgsize;
+                *dst++ = '0';
+                *dst = '\0';
+        }
+
+        /* Format whole octets. */
+        for (b = bits / 8; b > 0; b--) {
+                if (ep - dst < sizeof "255.")
+                        goto emsgsize;
+                advance = snprintf(dst, ep - dst, "%u", *src++);
+                if (advance <= 0 || advance >= ep - dst)
+                        goto emsgsize;
+                dst += advance;
+                if (b > 1) {
+                        if (dst + 1 >= ep)
+                                goto emsgsize;
+                        *dst++ = '.';
+                        *dst = '\0';
+                }
+        }
+
+        /* Format partial octet. */
+        b = bits % 8;
+        if (b > 0) {
+                if (ep - dst < sizeof ".255")
+                        goto emsgsize;
+                if (dst != odst)
+                        if (dst + 1 >= ep)
+                                goto emsgsize;
+                        *dst++ = '.';
+                m = ((1 << b) - 1) << (8 - b);
+                advance = snprintf(dst, ep - dst, "%u", *src & m);
+                if (advance <= 0 || advance >= ep - dst)
+                        goto emsgsize;
+                dst += advance;
+        }
+
+        /* Format CIDR /width. */
+        if (ep - dst < sizeof "/32")
+                goto emsgsize;
+        advance = snprintf(dst, ep - dst, "/%u", bits);
+        if (advance <= 0 || advance >= ep - dst)
+                goto emsgsize;
+        dst += advance;
+        return (odst);
+
+ emsgsize:
+        errno = EMSGSIZE;
+        return (NULL);
+}
+
+static char *
+inet_net_ntop_ipv6(const u_char *src, int bits, char *dst, size_t size)
+{
+        int     ret;
+        char    buf[sizeof("xxxx:xxxx:xxxx:xxxx:xxxx:xxxx:255:255:255:255/128")];
+
+        if (bits < 0 || bits > 128) {
+                errno = EINVAL;
+                return (NULL);
+        }
+
+        if (inet_ntop(AF_INET6, src, buf, size) == NULL)
+                return (NULL);
+
+        ret = snprintf(dst, size, "%s/%d", buf, bits);
+        if (ret == -1 || ret >= size) {
+                errno = EMSGSIZE;
+                return (NULL); 
+        }
+
+        return (dst);
+}
diff --git a/src/lib/libc/net/inet_net_pton.c b/src/lib/libc/net/inet_net_pton.c
new file mode 100644
index 0000000000..1683a79043
--- /dev/null
+++ b/src/lib/libc/net/inet_net_pton.c
@@ -0,0 +1,231 @@
+/*      $OpenBSD: inet_net_pton.c,v 1.8 2013/11/25 18:23:51 deraadt Exp $       */
+
+/*
+ * Copyright (c) 2012 by Gilles Chehade <gilles@openbsd.org>
+ * Copyright (c) 1996 by Internet Software Consortium.
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND INTERNET SOFTWARE CONSORTIUM DISCLAIMS
+ * ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL INTERNET SOFTWARE
+ * CONSORTIUM BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
+ * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
+ * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS
+ * ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
+ * SOFTWARE.
+ */
+
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <netinet/in.h>
+#include <arpa/inet.h>
+
+#include <assert.h>
+#include <ctype.h>
+#include <errno.h>
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+
+static int      inet_net_pton_ipv4(const char *, u_char *, size_t);
+static int      inet_net_pton_ipv6(const char *, u_char *, size_t);
+
+/*
+ * static int
+ * inet_net_pton(af, src, dst, size)
+ *      convert network number from presentation to network format.
+ *      accepts hex octets, hex strings, decimal octets, and /CIDR.
+ *      "size" is in bytes and describes "dst".
+ * return:
+ *      number of bits, either imputed classfully or specified with /CIDR,
+ *      or -1 if some failure occurred (check errno).  ENOENT means it was
+ *      not a valid network specification.
+ * author:
+ *      Paul Vixie (ISC), June 1996
+ */
+int
+inet_net_pton(int af, const char *src, void *dst, size_t size)
+{
+        switch (af) {
+        case AF_INET:
+                return (inet_net_pton_ipv4(src, dst, size));
+        case AF_INET6:
+                return (inet_net_pton_ipv6(src, dst, size));
+        default:
+                errno = EAFNOSUPPORT;
+                return (-1);
+        }
+}
+
+/*
+ * static int
+ * inet_net_pton_ipv4(src, dst, size)
+ *      convert IPv4 network number from presentation to network format.
+ *      accepts hex octets, hex strings, decimal octets, and /CIDR.
+ *      "size" is in bytes and describes "dst".
+ * return:
+ *      number of bits, either imputed classfully or specified with /CIDR,
+ *      or -1 if some failure occurred (check errno).  ENOENT means it was
+ *      not an IPv4 network specification.
+ * note:
+ *      network byte order assumed.  this means 192.5.5.240/28 has
+ *      0x11110000 in its fourth octet.
+ * author:
+ *      Paul Vixie (ISC), June 1996
+ */
+static int
+inet_net_pton_ipv4(const char *src, u_char *dst, size_t size)
+{
+        static const char
+                xdigits[] = "0123456789abcdef",
+                digits[] = "0123456789";
+        int n, ch, tmp, dirty, bits;
+        const u_char *odst = dst;
+
+        ch = (unsigned char)*src++;
+        if (ch == '0' && (src[0] == 'x' || src[0] == 'X')
+            && isascii((unsigned char)src[1]) && isxdigit((unsigned char)src[1])) {
+                /* Hexadecimal: Eat nybble string. */
+                if (size <= 0)
+                        goto emsgsize;
+                *dst = 0, dirty = 0;
+                src++;  /* skip x or X. */
+                while ((ch = (unsigned char)*src++) != '\0' &&
+                    isascii(ch) && isxdigit(ch)) {
+                        if (isupper(ch))
+                                ch = tolower(ch);
+                        n = strchr(xdigits, ch) - xdigits;
+                        assert(n >= 0 && n <= 15);
+                        *dst |= n;
+                        if (!dirty++)
+                                *dst <<= 4;
+                        else if (size-- > 0)
+                                *++dst = 0, dirty = 0;
+                        else
+                                goto emsgsize;
+                }
+                if (dirty)
+                        size--;
+        } else if (isascii(ch) && isdigit(ch)) {
+                /* Decimal: eat dotted digit string. */
+                for (;;) {
+                        tmp = 0;
+                        do {
+                                n = strchr(digits, ch) - digits;
+                                assert(n >= 0 && n <= 9);
+                                tmp *= 10;
+                                tmp += n;
+                                if (tmp > 255)
+                                        goto enoent;
+                        } while ((ch = (unsigned char)*src++) != '\0' &&
+                                 isascii(ch) && isdigit(ch));
+                        if (size-- <= 0)
+                                goto emsgsize;
+                        *dst++ = (u_char) tmp;
+                        if (ch == '\0' || ch == '/')
+                                break;
+                        if (ch != '.')
+                                goto enoent;
+                        ch = (unsigned char)*src++;
+                        if (!isascii(ch) || !isdigit(ch))
+                                goto enoent;
+                }
+        } else
+                goto enoent;
+
+        bits = -1;
+        if (ch == '/' && isascii((unsigned char)src[0]) &&
+            isdigit((unsigned char)src[0]) && dst > odst) {
+                /* CIDR width specifier.  Nothing can follow it. */
+                ch = (unsigned char)*src++;     /* Skip over the /. */
+                bits = 0;
+                do {
+                        n = strchr(digits, ch) - digits;
+                        assert(n >= 0 && n <= 9);
+                        bits *= 10;
+                        bits += n;
+                        if (bits > 32)
+                                goto emsgsize;
+                } while ((ch = (unsigned char)*src++) != '\0' &&
+                         isascii(ch) && isdigit(ch));
+                if (ch != '\0')
+                        goto enoent;
+        }
+
+        /* Firey death and destruction unless we prefetched EOS. */
+        if (ch != '\0')
+                goto enoent;
+
+        /* If nothing was written to the destination, we found no address. */
+        if (dst == odst)
+                goto enoent;
+        /* If no CIDR spec was given, infer width from net class. */
+        if (bits == -1) {
+                if (*odst >= 240)       /* Class E */
+                        bits = 32;
+                else if (*odst >= 224)  /* Class D */
+                        bits = 4;
+                else if (*odst >= 192)  /* Class C */
+                        bits = 24;
+                else if (*odst >= 128)  /* Class B */
+                        bits = 16;
+                else                    /* Class A */
+                        bits = 8;
+                /* If imputed mask is narrower than specified octets, widen. */
+                if (bits < ((dst - odst) * 8))
+                        bits = (dst - odst) * 8;
+        }
+        /* Extend network to cover the actual mask. */
+        while (bits > ((dst - odst) * 8)) {
+                if (size-- <= 0)
+                        goto emsgsize;
+                *dst++ = '\0';
+        }
+        return (bits);
+
+ enoent:
+        errno = ENOENT;
+        return (-1);
+
+ emsgsize:
+        errno = EMSGSIZE;
+        return (-1);
+}
+
+
+static int
+inet_net_pton_ipv6(const char *src, u_char *dst, size_t size)
+{
+        int     ret;
+        int     bits;
+        char    buf[sizeof("xxxx:xxxx:xxxx:xxxx:xxxx:xxxx:255:255:255:255/128")];
+        char            *sep;
+        const char      *errstr;
+
+        if (strlcpy(buf, src, sizeof buf) >= sizeof buf) {
+                errno = EMSGSIZE;
+                return (-1);
+        }
+
+        sep = strchr(buf, '/');
+        if (sep != NULL)
+                *sep++ = '\0';
+
+        ret = inet_pton(AF_INET6, buf, dst);
+        if (ret != 1)
+                return (-1);
+
+        if (sep == NULL)
+                return 128;
+
+        bits = strtonum(sep, 0, 128, &errstr);
+        if (errstr) {
+                errno = EINVAL;
+                return (-1);
+        }
+
+        return bits;
+}
diff --git a/src/lib/libc/net/inet_neta.c b/src/lib/libc/net/inet_neta.c
new file mode 100644
index 0000000000..e3e7d0eb71
--- /dev/null
+++ b/src/lib/libc/net/inet_neta.c
@@ -0,0 +1,80 @@
+/*      $OpenBSD: inet_neta.c,v 1.7 2005/08/06 20:30:03 espie Exp $     */
+
+/*
+ * Copyright (c) 1996 by Internet Software Consortium.
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND INTERNET SOFTWARE CONSORTIUM DISCLAIMS
+ * ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL INTERNET SOFTWARE
+ * CONSORTIUM BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
+ * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
+ * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS
+ * ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
+ * SOFTWARE.
+ */
+
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <netinet/in.h>
+#include <arpa/inet.h>
+
+#include <errno.h>
+#include <stdio.h>
+#include <string.h>
+
+/*
+ * char *
+ * inet_neta(src, dst, size)
+ *      format an in_addr_t network number into presentation format.
+ * return:
+ *      pointer to dst, or NULL if an error occurred (check errno).
+ * note:
+ *      format of ``src'' is as for inet_network().
+ * author:
+ *      Paul Vixie (ISC), July 1996
+ */
+char *
+inet_neta(in_addr_t src, char *dst, size_t size)
+{
+        char *odst = dst;
+        char *ep;
+        int advance;
+
+        if (src == 0x00000000) {
+                if (size < sizeof "0.0.0.0")
+                        goto emsgsize;
+                strlcpy(dst, "0.0.0.0", size);
+                return dst;
+        }
+        ep = dst + size;
+        if (ep <= dst)
+                goto emsgsize;
+        while (src & 0xffffffff) {
+                u_char b = (src & 0xff000000) >> 24;
+
+                src <<= 8;
+                if (b || src) {
+                        if (ep - dst < sizeof "255.")
+                                goto emsgsize;
+                        advance = snprintf(dst, ep - dst, "%u", b);
+                        if (advance <= 0 || advance >= ep - dst)
+                                goto emsgsize;
+                        dst += advance;
+                        if (src != 0L) {
+                                if (dst + 1 >= ep)
+                                        goto emsgsize;
+                                *dst++ = '.';
+                                *dst = '\0';
+                        }
+                }
+        }
+        return (odst);
+
+ emsgsize:
+        errno = EMSGSIZE;
+        return (NULL);
+}
diff --git a/src/lib/libc/net/inet_netof.c b/src/lib/libc/net/inet_netof.c
new file mode 100644
index 0000000000..2f468c3aca
--- /dev/null
+++ b/src/lib/libc/net/inet_netof.c
@@ -0,0 +1,50 @@
+/*      $OpenBSD: inet_netof.c,v 1.6 2005/08/06 20:30:03 espie Exp $ */
+/*
+ * Copyright (c) 1983, 1993
+ *      The Regents of the University of California.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <sys/param.h>
+#include <netinet/in.h>
+#include <arpa/inet.h>
+
+/*
+ * Return the network number from an internet
+ * address; handles class a/b/c network #'s.
+ */
+in_addr_t
+inet_netof(struct in_addr in)
+{
+        in_addr_t i = ntohl(in.s_addr);
+
+        if (IN_CLASSA(i))
+                return (((i)&IN_CLASSA_NET) >> IN_CLASSA_NSHIFT);
+        else if (IN_CLASSB(i))
+                return (((i)&IN_CLASSB_NET) >> IN_CLASSB_NSHIFT);
+        else
+                return (((i)&IN_CLASSC_NET) >> IN_CLASSC_NSHIFT);
+}
diff --git a/src/lib/libc/net/inet_network.c b/src/lib/libc/net/inet_network.c
new file mode 100644
index 0000000000..ecf554e4f9
--- /dev/null
+++ b/src/lib/libc/net/inet_network.c
@@ -0,0 +1,84 @@
+/*      $OpenBSD: inet_network.c,v 1.11 2013/11/25 17:29:19 deraadt Exp $ */
+/*
+ * Copyright (c) 1983, 1993
+ *      The Regents of the University of California.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <sys/types.h>
+#include <netinet/in.h>
+#include <arpa/inet.h>
+#include <ctype.h>
+
+/*
+ * Internet network address interpretation routine.
+ * The library routines call this routine to interpret
+ * network numbers.
+ */
+in_addr_t
+inet_network(const char *cp)
+{
+        in_addr_t val, base, n;
+        u_char c;
+        in_addr_t parts[4], *pp = parts;
+        int i;
+
+again:
+        val = 0; base = 10;
+        if (*cp == '0')
+                base = 8, cp++;
+        if (*cp == 'x' || *cp == 'X')
+                base = 16, cp++;
+        while ((c = *cp)) {
+                if (isdigit(c)) {
+                        val = (val * base) + (c - '0');
+                        cp++;
+                        continue;
+                }
+                if (base == 16 && isxdigit(c)) {
+                        val = (val << 4) + (c + 10 - (islower(c) ? 'a' : 'A'));
+                        cp++;
+                        continue;
+                }
+                break;
+        }
+        if (*cp == '.') {
+                if (pp >= parts + 3)
+                        return (INADDR_NONE);
+                *pp++ = val, cp++;
+                goto again;
+        }
+        if (*cp && !isspace(*cp))
+                return (INADDR_NONE);
+        *pp++ = val;
+        n = pp - parts;
+        for (val = 0, i = 0; i < 4; i++) {
+                val <<= 8;
+                if (i < n)
+                        val |= parts[i] & 0xff;
+        }
+        return (val);
+}
diff --git a/src/lib/libc/net/inet_ntoa.c b/src/lib/libc/net/inet_ntoa.c
new file mode 100644
index 0000000000..ff5d93ded2
--- /dev/null
+++ b/src/lib/libc/net/inet_ntoa.c
@@ -0,0 +1,51 @@
+/*      $OpenBSD: inet_ntoa.c,v 1.6 2005/08/06 20:30:03 espie Exp $ */
+/*
+ * Copyright (c) 1983, 1993
+ *      The Regents of the University of California.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+/*
+ * Convert network-format internet address
+ * to base 256 d.d.d.d representation.
+ */
+#include <sys/types.h>
+#include <netinet/in.h>
+#include <arpa/inet.h>
+#include <stdio.h>
+
+char *
+inet_ntoa(struct in_addr in)
+{
+        static char b[18];
+        char *p;
+
+        p = (char *)&in;
+#define UC(b)   (((int)b)&0xff)
+        (void)snprintf(b, sizeof(b),
+            "%u.%u.%u.%u", UC(p[0]), UC(p[1]), UC(p[2]), UC(p[3]));
+        return (b);
+}
diff --git a/src/lib/libc/net/inet_ntop.c b/src/lib/libc/net/inet_ntop.c
new file mode 100644
index 0000000000..359acd8cda
--- /dev/null
+++ b/src/lib/libc/net/inet_ntop.c
@@ -0,0 +1,205 @@
+/*      $OpenBSD: inet_ntop.c,v 1.9 2014/02/05 14:20:43 millert Exp $   */
+
+/* Copyright (c) 1996 by Internet Software Consortium.
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND INTERNET SOFTWARE CONSORTIUM DISCLAIMS
+ * ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL INTERNET SOFTWARE
+ * CONSORTIUM BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
+ * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
+ * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS
+ * ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
+ * SOFTWARE.
+ */
+
+#include <sys/param.h>
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <netinet/in.h>
+#include <arpa/inet.h>
+#include <arpa/nameser.h>
+#include <string.h>
+#include <errno.h>
+#include <stdio.h>
+
+/*
+ * WARNING: Don't even consider trying to compile this on a system where
+ * sizeof(int) < 4.  sizeof(int) > 4 is fine; all the world's not a VAX.
+ */
+
+static const char *inet_ntop4(const u_char *src, char *dst, size_t size);
+static const char *inet_ntop6(const u_char *src, char *dst, size_t size);
+
+/* const char *
+ * inet_ntop(af, src, dst, size)
+ *      convert a network format address to presentation format.
+ * return:
+ *      pointer to presentation format address (`dst'), or NULL (see errno).
+ * author:
+ *      Paul Vixie, 1996.
+ */
+const char *
+inet_ntop(int af, const void *src, char *dst, socklen_t size)
+{
+        switch (af) {
+        case AF_INET:
+                return (inet_ntop4(src, dst, (size_t)size));
+        case AF_INET6:
+                return (inet_ntop6(src, dst, (size_t)size));
+        default:
+                errno = EAFNOSUPPORT;
+                return (NULL);
+        }
+        /* NOTREACHED */
+}
+
+/* const char *
+ * inet_ntop4(src, dst, size)
+ *      format an IPv4 address, more or less like inet_ntoa()
+ * return:
+ *      `dst' (as a const)
+ * notes:
+ *      (1) uses no statics
+ *      (2) takes a u_char* not an in_addr as input
+ * author:
+ *      Paul Vixie, 1996.
+ */
+static const char *
+inet_ntop4(const u_char *src, char *dst, size_t size)
+{
+        static const char fmt[] = "%u.%u.%u.%u";
+        char tmp[sizeof "255.255.255.255"];
+        int l;
+
+        l = snprintf(tmp, size, fmt, src[0], src[1], src[2], src[3]);
+        if (l <= 0 || l >= size) {
+                errno = ENOSPC;
+                return (NULL);
+        }
+        strlcpy(dst, tmp, size);
+        return (dst);
+}
+
+/* const char *
+ * inet_ntop6(src, dst, size)
+ *      convert IPv6 binary address into presentation (printable) format
+ * author:
+ *      Paul Vixie, 1996.
+ */
+static const char *
+inet_ntop6(const u_char *src, char *dst, size_t size)
+{
+        /*
+         * Note that int32_t and int16_t need only be "at least" large enough
+         * to contain a value of the specified size.  On some systems, like
+         * Crays, there is no such thing as an integer variable with 16 bits.
+         * Keep this in mind if you think this function should have been coded
+         * to use pointer overlays.  All the world's not a VAX.
+         */
+        char tmp[sizeof "ffff:ffff:ffff:ffff:ffff:ffff:255.255.255.255"];
+        char *tp, *ep;
+        struct { int base, len; } best, cur;
+        u_int words[IN6ADDRSZ / INT16SZ];
+        int i;
+        int advance;
+
+        /*
+         * Preprocess:
+         *      Copy the input (bytewise) array into a wordwise array.
+         *      Find the longest run of 0x00's in src[] for :: shorthanding.
+         */
+        memset(words, '\0', sizeof words);
+        for (i = 0; i < IN6ADDRSZ; i++)
+                words[i / 2] |= (src[i] << ((1 - (i % 2)) << 3));
+        best.base = -1;
+        cur.base = -1;
+        for (i = 0; i < (IN6ADDRSZ / INT16SZ); i++) {
+                if (words[i] == 0) {
+                        if (cur.base == -1)
+                                cur.base = i, cur.len = 1;
+                        else
+                                cur.len++;
+                } else {
+                        if (cur.base != -1) {
+                                if (best.base == -1 || cur.len > best.len)
+                                        best = cur;
+                                cur.base = -1;
+                        }
+                }
+        }
+        if (cur.base != -1) {
+                if (best.base == -1 || cur.len > best.len)
+                        best = cur;
+        }
+        if (best.base != -1 && best.len < 2)
+                best.base = -1;
+
+        /*
+         * Format the result.
+         */
+        tp = tmp;
+        ep = tmp + sizeof(tmp);
+        for (i = 0; i < (IN6ADDRSZ / INT16SZ) && tp < ep; i++) {
+                /* Are we inside the best run of 0x00's? */
+                if (best.base != -1 && i >= best.base &&
+                    i < (best.base + best.len)) {
+                        if (i == best.base) {
+                                if (tp + 1 >= ep) {
+                                        errno = ENOSPC;
+                                        return (NULL);
+                                }
+                                *tp++ = ':';
+                        }
+                        continue;
+                }
+                /* Are we following an initial run of 0x00s or any real hex? */
+                if (i != 0) {
+                        if (tp + 1 >= ep) {
+                                errno = ENOSPC;
+                                return (NULL);
+                        }
+                        *tp++ = ':';
+                }
+                /* Is this address an encapsulated IPv4? */
+                if (i == 6 && best.base == 0 &&
+                    (best.len == 6 || (best.len == 5 && words[5] == 0xffff))) {
+                        if (!inet_ntop4(src+12, tp, (size_t)(ep - tp)))
+                                return (NULL);
+                        tp += strlen(tp);
+                        break;
+                }
+                advance = snprintf(tp, ep - tp, "%x", words[i]);
+                if (advance <= 0 || advance >= ep - tp) {
+                        errno = ENOSPC;
+                        return (NULL);
+                }
+                tp += advance;
+        }
+        /* Was it a trailing run of 0x00's? */
+        if (best.base != -1 && (best.base + best.len) == (IN6ADDRSZ / INT16SZ)) {
+                if (tp + 1 >= ep) {
+                        errno = ENOSPC;
+                        return (NULL);
+                }
+                *tp++ = ':';
+        }
+        if (tp + 1 >= ep) {
+                errno = ENOSPC;
+                return (NULL);
+        }
+        *tp++ = '\0';
+
+        /*
+         * Check for overflow, copy, and we're done.
+         */
+        if ((size_t)(tp - tmp) > size) {
+                errno = ENOSPC;
+                return (NULL);
+        }
+        strlcpy(dst, tmp, size);
+        return (dst);
+}
diff --git a/src/lib/libc/net/inet_pton.c b/src/lib/libc/net/inet_pton.c
new file mode 100644
index 0000000000..7e521c3286
--- /dev/null
+++ b/src/lib/libc/net/inet_pton.c
@@ -0,0 +1,213 @@
+/*      $OpenBSD: inet_pton.c,v 1.8 2010/05/06 15:47:14 claudio Exp $   */
+
+/* Copyright (c) 1996 by Internet Software Consortium.
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND INTERNET SOFTWARE CONSORTIUM DISCLAIMS
+ * ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL INTERNET SOFTWARE
+ * CONSORTIUM BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
+ * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
+ * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS
+ * ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
+ * SOFTWARE.
+ */
+
+#include <sys/param.h>
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <netinet/in.h>
+#include <arpa/inet.h>
+#include <arpa/nameser.h>
+#include <string.h>
+#include <errno.h>
+
+/*
+ * WARNING: Don't even consider trying to compile this on a system where
+ * sizeof(int) < 4.  sizeof(int) > 4 is fine; all the world's not a VAX.
+ */
+
+static int      inet_pton4(const char *src, u_char *dst);
+static int      inet_pton6(const char *src, u_char *dst);
+
+/* int
+ * inet_pton(af, src, dst)
+ *      convert from presentation format (which usually means ASCII printable)
+ *      to network format (which is usually some kind of binary format).
+ * return:
+ *      1 if the address was valid for the specified address family
+ *      0 if the address wasn't valid (`dst' is untouched in this case)
+ *      -1 if some other error occurred (`dst' is untouched in this case, too)
+ * author:
+ *      Paul Vixie, 1996.
+ */
+int
+inet_pton(int af, const char *src, void *dst)
+{
+        switch (af) {
+        case AF_INET:
+                return (inet_pton4(src, dst));
+        case AF_INET6:
+                return (inet_pton6(src, dst));
+        default:
+                errno = EAFNOSUPPORT;
+                return (-1);
+        }
+        /* NOTREACHED */
+}
+
+/* int
+ * inet_pton4(src, dst)
+ *      like inet_aton() but without all the hexadecimal and shorthand.
+ * return:
+ *      1 if `src' is a valid dotted quad, else 0.
+ * notice:
+ *      does not touch `dst' unless it's returning 1.
+ * author:
+ *      Paul Vixie, 1996.
+ */
+static int
+inet_pton4(const char *src, u_char *dst)
+{
+        static const char digits[] = "0123456789";
+        int saw_digit, octets, ch;
+        u_char tmp[INADDRSZ], *tp;
+
+        saw_digit = 0;
+        octets = 0;
+        *(tp = tmp) = 0;
+        while ((ch = *src++) != '\0') {
+                const char *pch;
+
+                if ((pch = strchr(digits, ch)) != NULL) {
+                        u_int new = *tp * 10 + (pch - digits);
+
+                        if (new > 255)
+                                return (0);
+                        if (! saw_digit) {
+                                if (++octets > 4)
+                                        return (0);
+                                saw_digit = 1;
+                        }
+                        *tp = new;
+                } else if (ch == '.' && saw_digit) {
+                        if (octets == 4)
+                                return (0);
+                        *++tp = 0;
+                        saw_digit = 0;
+                } else
+                        return (0);
+        }
+        if (octets < 4)
+                return (0);
+
+        memcpy(dst, tmp, INADDRSZ);
+        return (1);
+}
+
+/* int
+ * inet_pton6(src, dst)
+ *      convert presentation level address to network order binary form.
+ * return:
+ *      1 if `src' is a valid [RFC1884 2.2] address, else 0.
+ * notice:
+ *      does not touch `dst' unless it's returning 1.
+ * credit:
+ *      inspired by Mark Andrews.
+ * author:
+ *      Paul Vixie, 1996.
+ */
+static int
+inet_pton6(const char *src, u_char *dst)
+{
+        static const char xdigits_l[] = "0123456789abcdef",
+                          xdigits_u[] = "0123456789ABCDEF";
+        u_char tmp[IN6ADDRSZ], *tp, *endp, *colonp;
+        const char *xdigits, *curtok;
+        int ch, saw_xdigit, count_xdigit;
+        u_int val;
+
+        memset((tp = tmp), '\0', IN6ADDRSZ);
+        endp = tp + IN6ADDRSZ;
+        colonp = NULL;
+        /* Leading :: requires some special handling. */
+        if (*src == ':')
+                if (*++src != ':')
+                        return (0);
+        curtok = src;
+        saw_xdigit = count_xdigit = 0;
+        val = 0;
+        while ((ch = *src++) != '\0') {
+                const char *pch;
+
+                if ((pch = strchr((xdigits = xdigits_l), ch)) == NULL)
+                        pch = strchr((xdigits = xdigits_u), ch);
+                if (pch != NULL) {
+                        if (count_xdigit >= 4)
+                                return (0);
+                        val <<= 4;
+                        val |= (pch - xdigits);
+                        if (val > 0xffff)
+                                return (0);
+                        saw_xdigit = 1;
+                        count_xdigit++;
+                        continue;
+                }
+                if (ch == ':') {
+                        curtok = src;
+                        if (!saw_xdigit) {
+                                if (colonp)
+                                        return (0);
+                                colonp = tp;
+                                continue;
+                        } else if (*src == '\0') {
+                                return (0);
+                        }
+                        if (tp + INT16SZ > endp)
+                                return (0);
+                        *tp++ = (u_char) (val >> 8) & 0xff;
+                        *tp++ = (u_char) val & 0xff;
+                        saw_xdigit = 0;
+                        count_xdigit = 0;
+                        val = 0;
+                        continue;
+                }
+                if (ch == '.' && ((tp + INADDRSZ) <= endp) &&
+                    inet_pton4(curtok, tp) > 0) {
+                        tp += INADDRSZ;
+                        saw_xdigit = 0;
+                        count_xdigit = 0;
+                        break;  /* '\0' was seen by inet_pton4(). */
+                }
+                return (0);
+        }
+        if (saw_xdigit) {
+                if (tp + INT16SZ > endp)
+                        return (0);
+                *tp++ = (u_char) (val >> 8) & 0xff;
+                *tp++ = (u_char) val & 0xff;
+        }
+        if (colonp != NULL) {
+                /*
+                 * Since some memmove()'s erroneously fail to handle
+                 * overlapping regions, we'll do the shift by hand.
+                 */
+                const int n = tp - colonp;
+                int i;
+
+                if (tp == endp)
+                        return (0);
+                for (i = 1; i <= n; i++) {
+                        endp[- i] = colonp[n - i];
+                        colonp[n - i] = 0;
+                }
+                tp = endp;
+        }
+        if (tp != endp)
+                return (0);
+        memcpy(dst, tmp, IN6ADDRSZ);
+        return (1);
+}
diff --git a/src/lib/libc/net/ip6opt.c b/src/lib/libc/net/ip6opt.c
new file mode 100644
index 0000000000..7b4fdc4c4e
--- /dev/null
+++ b/src/lib/libc/net/ip6opt.c
@@ -0,0 +1,593 @@
+/*      $OpenBSD: ip6opt.c,v 1.6 2014/02/17 21:05:39 stsp Exp $ */
+/*      $KAME: ip6opt.c,v 1.18 2005/06/15 07:11:35 keiichi Exp $        */
+
+/*
+ * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
+ * All rights reserved.
+ * 
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the project nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ * 
+ * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <sys/param.h>
+#include <sys/types.h>
+#include <sys/socket.h>
+
+#include <netinet/in.h>
+#include <netinet/ip6.h>
+
+#include <string.h>
+#include <stdio.h>
+
+static int ip6optlen(u_int8_t *opt, u_int8_t *lim);
+static void inet6_insert_padopt(u_char *p, int len);
+
+/*
+ * This function returns the number of bytes required to hold an option
+ * when it is stored as ancillary data, including the cmsghdr structure
+ * at the beginning, and any padding at the end (to make its size a
+ * multiple of 8 bytes).  The argument is the size of the structure
+ * defining the option, which must include any pad bytes at the
+ * beginning (the value y in the alignment term "xn + y"), the type
+ * byte, the length byte, and the option data.
+ */
+int
+inet6_option_space(int nbytes)
+{
+        nbytes += 2;    /* we need space for nxt-hdr and length fields */
+        return (CMSG_SPACE((nbytes + 7) & ~7));
+}
+
+/*
+ * This function is called once per ancillary data object that will
+ * contain either Hop-by-Hop or Destination options.  It returns 0 on
+ * success or -1 on an error.
+ */
+int
+inet6_option_init(void *bp, struct cmsghdr **cmsgp, int type)
+{
+        struct cmsghdr *ch = (struct cmsghdr *)bp;
+
+        /* argument validation */
+        if (type != IPV6_HOPOPTS && type != IPV6_DSTOPTS)
+                return (-1);
+        
+        ch->cmsg_level = IPPROTO_IPV6;
+        ch->cmsg_type = type;
+        ch->cmsg_len = CMSG_LEN(0);
+
+        *cmsgp = ch;
+        return (0);
+}
+
+/*
+ * This function appends a Hop-by-Hop option or a Destination option
+ * into an ancillary data object that has been initialized by
+ * inet6_option_init().  This function returns 0 if it succeeds or -1 on
+ * an error.
+ * multx is the value x in the alignment term "xn + y" described
+ * earlier.  It must have a value of 1, 2, 4, or 8.
+ * plusy is the value y in the alignment term "xn + y" described
+ * earlier.  It must have a value between 0 and 7, inclusive.
+ */
+int
+inet6_option_append(struct cmsghdr *cmsg, const u_int8_t *typep, int multx,
+    int plusy)
+{
+        int padlen, optlen, off;
+        u_char *bp = (u_char *)cmsg + cmsg->cmsg_len;
+        struct ip6_ext *eh = (struct ip6_ext *)CMSG_DATA(cmsg);
+
+        /* argument validation */
+        if (multx != 1 && multx != 2 && multx != 4 && multx != 8)
+                return (-1);
+        if (plusy < 0 || plusy > 7)
+                return (-1);
+#if 0
+        if (typep[0] > 255)
+                return (-1);
+#endif
+
+        /*
+         * If this is the first option, allocate space for the
+         * first 2 bytes(for next header and length fields) of
+         * the option header.
+         */
+        if (bp == (u_char *)eh) {
+                bp += 2;
+                cmsg->cmsg_len += 2;
+        }
+
+        /* calculate pad length before the option. */
+        off = bp - (u_char *)eh;
+        padlen = (((off % multx) + (multx - 1)) & ~(multx - 1)) -
+                (off % multx);
+        padlen += plusy;
+        padlen %= multx;        /* keep the pad as short as possible */
+        /* insert padding */
+        inet6_insert_padopt(bp, padlen);
+        cmsg->cmsg_len += padlen;
+        bp += padlen;
+
+        /* copy the option */
+        if (typep[0] == IP6OPT_PAD1)
+                optlen = 1;
+        else
+                optlen = typep[1] + 2;
+        memcpy(bp, typep, optlen);
+        bp += optlen;
+        cmsg->cmsg_len += optlen;
+
+        /* calculate pad length after the option and insert the padding */
+        off = bp - (u_char *)eh;
+        padlen = ((off + 7) & ~7) - off;
+        inet6_insert_padopt(bp, padlen);
+        bp += padlen;
+        cmsg->cmsg_len += padlen;
+
+        /* update the length field of the ip6 option header */
+        eh->ip6e_len = ((bp - (u_char *)eh) >> 3) - 1;
+
+        return (0);
+}
+
+/*
+ * This function appends a Hop-by-Hop option or a Destination option
+ * into an ancillary data object that has been initialized by
+ * inet6_option_init().  This function returns a pointer to the 8-bit
+ * option type field that starts the option on success, or NULL on an
+ * error.
+ * The difference between this function and inet6_option_append() is
+ * that the latter copies the contents of a previously built option into
+ * the ancillary data object while the current function returns a
+ * pointer to the space in the data object where the option's TLV must
+ * then be built by the caller.
+ * 
+ */
+u_int8_t *
+inet6_option_alloc(struct cmsghdr *cmsg, int datalen, int multx, int plusy)
+{
+        int padlen, off;
+        u_int8_t *bp = (u_char *)cmsg + cmsg->cmsg_len;
+        u_int8_t *retval;
+        struct ip6_ext *eh = (struct ip6_ext *)CMSG_DATA(cmsg);
+
+        /* argument validation */
+        if (multx != 1 && multx != 2 && multx != 4 && multx != 8)
+                return (NULL);
+        if (plusy < 0 || plusy > 7)
+                return (NULL);
+
+        /*
+         * If this is the first option, allocate space for the
+         * first 2 bytes(for next header and length fields) of
+         * the option header.
+         */
+        if (bp == (u_char *)eh) {
+                bp += 2;
+                cmsg->cmsg_len += 2;
+        }
+
+        /* calculate pad length before the option. */
+        off = bp - (u_char *)eh;
+        padlen = (((off % multx) + (multx - 1)) & ~(multx - 1)) -
+                (off % multx);
+        padlen += plusy;
+        padlen %= multx;        /* keep the pad as short as possible */
+        /* insert padding */
+        inet6_insert_padopt(bp, padlen);
+        cmsg->cmsg_len += padlen;
+        bp += padlen;
+
+        /* keep space to store specified length of data */
+        retval = bp;
+        bp += datalen;
+        cmsg->cmsg_len += datalen;
+
+        /* calculate pad length after the option and insert the padding */
+        off = bp - (u_char *)eh;
+        padlen = ((off + 7) & ~7) - off;
+        inet6_insert_padopt(bp, padlen);
+        bp += padlen;
+        cmsg->cmsg_len += padlen;
+
+        /* update the length field of the ip6 option header */
+        eh->ip6e_len = ((bp - (u_char *)eh) >> 3) - 1;
+
+        return (retval);
+}
+
+/*
+ * This function processes the next Hop-by-Hop option or Destination
+ * option in an ancillary data object.  If another option remains to be
+ * processed, the return value of the function is 0 and *tptrp points to
+ * the 8-bit option type field (which is followed by the 8-bit option
+ * data length, followed by the option data).  If no more options remain
+ * to be processed, the return value is -1 and *tptrp is NULL.  If an
+ * error occurs, the return value is -1 and *tptrp is not NULL.
+ * (RFC 2292, 6.3.5)
+ */
+int
+inet6_option_next(const struct cmsghdr *cmsg, u_int8_t **tptrp)
+{
+        struct ip6_ext *ip6e;
+        int hdrlen, optlen;
+        u_int8_t *lim;
+
+        if (cmsg->cmsg_level != IPPROTO_IPV6 ||
+            (cmsg->cmsg_type != IPV6_HOPOPTS &&
+             cmsg->cmsg_type != IPV6_DSTOPTS))
+                return (-1);
+
+        /* message length validation */
+        if (cmsg->cmsg_len < CMSG_SPACE(sizeof(struct ip6_ext)))
+                return (-1);
+        ip6e = (struct ip6_ext *)CMSG_DATA(cmsg);
+        hdrlen = (ip6e->ip6e_len + 1) << 3;
+        if (cmsg->cmsg_len < CMSG_SPACE(hdrlen))
+                return (-1);
+
+        /*
+         * If the caller does not specify the starting point,
+         * simply return the 1st option.
+         * Otherwise, search the option list for the next option.
+         */
+        lim = (u_int8_t *)ip6e + hdrlen;
+        if (*tptrp == NULL)
+                *tptrp = (u_int8_t *)(ip6e + 1);
+        else {
+                if ((optlen = ip6optlen(*tptrp, lim)) == 0)
+                        return (-1);
+
+                *tptrp = *tptrp + optlen;
+        }
+        if (*tptrp >= lim) {    /* there is no option */
+                *tptrp = NULL;
+                return (-1);
+        }
+        /*
+         * Finally, checks if the next option is safely stored in the
+         * cmsg data.
+         */
+        if (ip6optlen(*tptrp, lim) == 0)
+                return (-1);
+        else
+                return (0);
+}
+
+/*
+ * This function is similar to the inet6_option_next() function,
+ * except this function lets the caller specify the option type to be
+ * searched for, instead of always returning the next option in the
+ * ancillary data object.
+ * Note: RFC 2292 says the type of tptrp is u_int8_t *, but we think
+ *       it's a typo. The variable should be type of u_int8_t **.
+ */
+int
+inet6_option_find(const struct cmsghdr *cmsg, u_int8_t **tptrp, int type)
+{
+        struct ip6_ext *ip6e;
+        int hdrlen, optlen;
+        u_int8_t *optp, *lim;
+
+        if (cmsg->cmsg_level != IPPROTO_IPV6 ||
+            (cmsg->cmsg_type != IPV6_HOPOPTS &&
+             cmsg->cmsg_type != IPV6_DSTOPTS))
+                return (-1);
+
+        /* message length validation */
+        if (cmsg->cmsg_len < CMSG_SPACE(sizeof(struct ip6_ext)))
+                return (-1);
+        ip6e = (struct ip6_ext *)CMSG_DATA(cmsg);
+        hdrlen = (ip6e->ip6e_len + 1) << 3;
+        if (cmsg->cmsg_len < CMSG_SPACE(hdrlen))
+                return (-1);    
+
+        /*
+         * If the caller does not specify the starting point,
+         * search from the beginning of the option list.
+         * Otherwise, search from *the next option* of the specified point.
+         */
+        lim = (u_int8_t *)ip6e + hdrlen;
+        if (*tptrp == NULL)
+                *tptrp = (u_int8_t *)(ip6e + 1);
+        else {
+                if ((optlen = ip6optlen(*tptrp, lim)) == 0)
+                        return (-1);
+
+                *tptrp = *tptrp + optlen;
+        }
+        for (optp = *tptrp; optp < lim; optp += optlen) {
+                if (*optp == type) {
+                        *tptrp = optp;
+                        return (0);
+                }
+                if ((optlen = ip6optlen(optp, lim)) == 0)
+                        return (-1);
+        }
+
+        /* search failed */
+        *tptrp = NULL;
+        return (-1);
+}
+
+/*
+ * Calculate the length of a given IPv6 option. Also checks
+ * if the option is safely stored in user's buffer according to the
+ * calculated length and the limitation of the buffer.
+ */
+static int
+ip6optlen(u_int8_t *opt, u_int8_t *lim)
+{
+        int optlen;
+
+        if (*opt == IP6OPT_PAD1)
+                optlen = 1;
+        else {
+                /* is there enough space to store type and len? */
+                if (opt + 2 > lim)
+                        return (0);
+                optlen = *(opt + 1) + 2;
+        }
+        if (opt + optlen <= lim)
+                return (optlen);
+
+        return (0);
+}
+
+static void
+inet6_insert_padopt(u_char *p, int len)
+{
+        switch(len) {
+         case 0:
+                 return;
+         case 1:
+                 p[0] = IP6OPT_PAD1;
+                 return;
+         default:
+                 p[0] = IP6OPT_PADN;
+                 p[1] = len - 2; 
+                 memset(&p[2], 0, len - 2);
+                 return;
+        }
+}
+
+/*
+ * The following functions are defined in RFC3542, which is a successor
+ * of RFC2292.
+ */
+
+int
+inet6_opt_init(void *extbuf, socklen_t extlen)
+{
+        struct ip6_ext *ext = (struct ip6_ext *)extbuf;
+
+        if (ext) {
+                if (extlen <= 0 || (extlen % 8))
+                        return (-1);
+                ext->ip6e_len = (extlen >> 3) - 1;
+        }
+
+        return (2);             /* sizeof the next and the length fields */
+}
+
+int
+inet6_opt_append(void *extbuf, socklen_t extlen, int offset, u_int8_t type,
+                 socklen_t len, u_int8_t align, void **databufp)
+{
+        int currentlen = offset, padlen = 0;
+
+        /*
+         * The option type must have a value from 2 to 255, inclusive.
+         * (0 and 1 are reserved for the Pad1 and PadN options, respectively.)
+         */
+#if 0 /* always false */
+        if (type < 2 || type > 255)
+#else
+        if (type < 2)
+#endif
+                return (-1);
+
+        /*
+         * The option data length must have a value between 0 and 255,
+         * inclusive, and is the length of the option data that follows.
+         */
+        if (len < 0 || len > 255)
+                return (-1);
+
+        /*
+         * The align parameter must have a value of 1, 2, 4, or 8.
+         * The align value can not exceed the value of len.
+         */
+        if (align != 1 && align != 2 && align != 4 && align != 8)
+                return (-1);
+        if (align > len)
+                return (-1);
+
+        /* Calculate the padding length. */
+        currentlen += 2 + len;  /* 2 means "type + len" */
+        if (currentlen % align)
+                padlen = align - (currentlen % align);
+
+        /* The option must fit in the extension header buffer. */
+        currentlen += padlen;
+        if (extlen &&           /* XXX: right? */
+            currentlen > extlen)
+                return (-1);
+
+        if (extbuf) {
+                u_int8_t *optp = (u_int8_t *)extbuf + offset;
+
+                if (padlen == 1) {
+                        /* insert a Pad1 option */
+                        *optp = IP6OPT_PAD1;
+                        optp++;
+                } else if (padlen > 0) {
+                        /* insert a PadN option for alignment */
+                        *optp++ = IP6OPT_PADN;
+                        *optp++ = padlen - 2;
+                        memset(optp, 0, padlen - 2);
+                        optp += (padlen - 2);
+                }
+
+                *optp++ = type;
+                *optp++ = len;
+
+                *databufp = optp;
+        }
+
+        return (currentlen);
+}
+
+int
+inet6_opt_finish(void *extbuf, socklen_t extlen, int offset)
+{
+        int updatelen = offset > 0 ? (1 + ((offset - 1) | 7)) : 0;;
+
+        if (extbuf) {
+                u_int8_t *padp;
+                int padlen = updatelen - offset;
+
+                if (updatelen > extlen)
+                        return (-1);
+
+                padp = (u_int8_t *)extbuf + offset;
+                if (padlen == 1)
+                        *padp = IP6OPT_PAD1;
+                else if (padlen > 0) {
+                        *padp++ = IP6OPT_PADN;
+                        *padp++ = (padlen - 2);
+                        memset(padp, 0, padlen - 2);
+                }
+        }
+
+        return (updatelen);
+}
+
+int
+inet6_opt_set_val(void *databuf, int offset, void *val, socklen_t vallen)
+{
+
+        memcpy((u_int8_t *)databuf + offset, val, vallen);
+        return (offset + vallen);
+}
+
+int
+inet6_opt_next(void *extbuf, socklen_t extlen, int offset, u_int8_t *typep,
+               socklen_t *lenp, void **databufp)
+{
+        u_int8_t *optp, *lim;
+        int optlen;
+
+        /* Validate extlen. XXX: is the variable really necessary?? */
+        if (extlen == 0 || (extlen % 8))
+                return (-1);
+        lim = (u_int8_t *)extbuf + extlen;
+
+        /*
+         * If this is the first time this function called for this options
+         * header, simply return the 1st option.
+         * Otherwise, search the option list for the next option.
+         */
+        if (offset == 0)
+                optp = (u_int8_t *)((struct ip6_hbh *)extbuf + 1);
+        else
+                optp = (u_int8_t *)extbuf + offset;
+
+        /* Find the next option skipping any padding options. */
+        while (optp < lim) {
+                switch(*optp) {
+                case IP6OPT_PAD1:
+                        optp++;
+                        break;
+                case IP6OPT_PADN:
+                        if ((optlen = ip6optlen(optp, lim)) == 0)
+                                goto optend;
+                        optp += optlen;
+                        break;
+                default:        /* found */
+                        if ((optlen = ip6optlen(optp, lim)) == 0)
+                                goto optend;
+                        *typep = *optp;
+                        *lenp = optlen - 2;
+                        *databufp = optp + 2;
+                        return (optp + optlen - (u_int8_t *)extbuf);
+                }
+        }
+
+  optend:
+        *databufp = NULL; /* for safety */
+        return (-1);
+}
+
+int
+inet6_opt_find(void *extbuf, socklen_t extlen, int offset, u_int8_t type,
+               socklen_t *lenp, void **databufp)
+{
+        u_int8_t *optp, *lim;
+        int optlen;
+
+        /* Validate extlen. XXX: is the variable really necessary?? */
+        if (extlen == 0 || (extlen % 8))
+                return (-1);
+        lim = (u_int8_t *)extbuf + extlen;
+
+        /*
+         * If this is the first time this function called for this options
+         * header, simply return the 1st option.
+         * Otherwise, search the option list for the next option.
+         */
+        if (offset == 0)
+                optp = (u_int8_t *)((struct ip6_hbh *)extbuf + 1);
+        else
+                optp = (u_int8_t *)extbuf + offset;
+
+        /* Find the specified option */
+        while (optp < lim) {
+                if ((optlen = ip6optlen(optp, lim)) == 0)
+                        goto optend;
+
+                if (*optp == type) { /* found */
+                        *lenp = optlen - 2;
+                        *databufp = optp + 2;
+                        return (optp + optlen - (u_int8_t *)extbuf);
+                }
+
+                optp += optlen;
+        }
+
+  optend:
+        *databufp = NULL; /* for safety */
+        return (-1);
+}
+
+int
+inet6_opt_get_val(void *databuf, int offset, void *val, socklen_t vallen)
+{
+
+        /* we can't assume alignment here */
+        memcpy(val, (u_int8_t *)databuf + offset, vallen);
+
+        return (offset + vallen);
+}
diff --git a/src/lib/libc/net/link_addr.3 b/src/lib/libc/net/link_addr.3
new file mode 100644
index 0000000000..f234fe84cc
--- /dev/null
+++ b/src/lib/libc/net/link_addr.3
@@ -0,0 +1,127 @@
+.\"     $OpenBSD: link_addr.3,v 1.13 2013/06/05 03:39:23 tedu Exp $
+.\"
+.\" Copyright (c) 1993
+.\"     The Regents of the University of California.  All rights reserved.
+.\"
+.\" This code is derived from software contributed to Berkeley by
+.\" Donn Seeley at BSDI.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\" 3. Neither the name of the University nor the names of its contributors
+.\"    may be used to endorse or promote products derived from this software
+.\"    without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.Dd $Mdocdate: June 5 2013 $
+.Dt LINK_ADDR 3
+.Os
+.Sh NAME
+.Nm link_addr ,
+.Nm link_ntoa
+.Nd elementary address specification routines for link level access
+.Sh SYNOPSIS
+.In sys/types.h
+.In sys/socket.h
+.In net/if_dl.h
+.Ft void
+.Fn link_addr "const char *addr" "struct sockaddr_dl *sdl"
+.Ft char *
+.Fn link_ntoa "const struct sockaddr_dl *sdl"
+.Sh DESCRIPTION
+The
+.Fn link_addr
+function interprets character strings representing
+link-level addresses, returning binary information suitable
+for use in system calls.
+.Fn link_ntoa
+takes
+a link-level
+address and returns an
+.Tn ASCII
+string representing some of the information present,
+including the link level address itself, and the interface name
+or number, if present.
+This facility is experimental and is
+still subject to change.
+.Pp
+For
+.Fn link_addr ,
+the string
+.Fa addr
+may contain
+an optional network interface identifier of the form
+.Dq name unit-number ,
+suitable for the first argument to
+.Xr ifconfig 8 ,
+followed in all cases by a colon and
+an interface address in the form of
+groups of hexadecimal digits
+separated by periods.
+Each group represents a byte of address;
+address bytes are filled left to right from
+low order bytes through high order bytes.
+.Pp
+.\" A regular expression may make this format clearer:
+.\" .Bd -literal -offset indent
+.\" ([a-z]+[0-9]+:)?[0-9a-f]+(\e.[0-9a-f]+)*
+.\" .Ed
+.\" .Pp
+Thus
+.Li le0:8.0.9.13.d.30
+represents an Ethernet address
+to be transmitted on the first Lance Ethernet interface.
+.Sh RETURN VALUES
+.Fn link_ntoa
+always returns a NUL-terminated string.
+.Fn link_addr
+has no return value.
+(See
+.Sx BUGS . )
+.Sh SEE ALSO
+.Xr ifconfig 8
+.Sh HISTORY
+The
+.Fn link_addr
+and
+.Fn link_ntoa
+functions appeared in
+.Bx 4.3 Reno .
+.Sh BUGS
+The returned values for
+.Fn link_ntoa
+reside in a static memory area.
+.Pp
+The function
+.Fn link_addr
+should diagnose improperly formed input, and there should be an unambiguous
+way to recognize this.
+.Pp
+If the
+.Fa sdl_len
+field of the link socket address
+.Fa sdl
+is 0,
+.Fn link_ntoa
+will not insert a colon before the interface address bytes.
+If this translated address is given to
+.Fn link_addr
+without inserting an initial colon,
+the latter will not interpret it correctly.
diff --git a/src/lib/libc/net/linkaddr.c b/src/lib/libc/net/linkaddr.c
new file mode 100644
index 0000000000..ac96f3acdf
--- /dev/null
+++ b/src/lib/libc/net/linkaddr.c
@@ -0,0 +1,148 @@
+/*      $OpenBSD: linkaddr.c,v 1.5 2005/08/06 20:30:03 espie Exp $ */
+/*-
+ * Copyright (c) 1990, 1993
+ *      The Regents of the University of California.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <net/if_dl.h>
+#include <string.h>
+
+/* States*/
+#define NAMING  0
+#define GOTONE  1
+#define GOTTWO  2
+#define RESET   3
+/* Inputs */
+#define DIGIT   (4*0)
+#define END     (4*1)
+#define DELIM   (4*2)
+#define LETTER  (4*3)
+
+void
+link_addr(const char *addr, struct sockaddr_dl *sdl)
+{
+        char *cp = sdl->sdl_data;
+        char *cplim = sdl->sdl_len + (char *)sdl;
+        int byte = 0, state = NAMING, new;
+
+        bzero((char *)&sdl->sdl_family, sdl->sdl_len - 1);
+        sdl->sdl_family = AF_LINK;
+        do {
+                state &= ~LETTER;
+                if ((*addr >= '0') && (*addr <= '9')) {
+                        new = *addr - '0';
+                } else if ((*addr >= 'a') && (*addr <= 'f')) {
+                        new = *addr - 'a' + 10;
+                } else if ((*addr >= 'A') && (*addr <= 'F')) {
+                        new = *addr - 'A' + 10;
+                } else if (*addr == 0) {
+                        state |= END;
+                } else if (state == NAMING &&
+                           (((*addr >= 'A') && (*addr <= 'Z')) ||
+                           ((*addr >= 'a') && (*addr <= 'z'))))
+                        state |= LETTER;
+                else
+                        state |= DELIM;
+                addr++;
+                switch (state /* | INPUT */) {
+                case NAMING | DIGIT:
+                case NAMING | LETTER:
+                        *cp++ = addr[-1];
+                        continue;
+                case NAMING | DELIM:
+                        state = RESET;
+                        sdl->sdl_nlen = cp - sdl->sdl_data;
+                        continue;
+                case GOTTWO | DIGIT:
+                        *cp++ = byte;
+                        /* FALLTHROUGH */
+                case RESET | DIGIT:
+                        state = GOTONE;
+                        byte = new;
+                        continue;
+                case GOTONE | DIGIT:
+                        state = GOTTWO;
+                        byte = new + (byte << 4);
+                        continue;
+                default: /* | DELIM */
+                        state = RESET;
+                        *cp++ = byte;
+                        byte = 0;
+                        continue;
+                case GOTONE | END:
+                case GOTTWO | END:
+                        *cp++ = byte;
+                        /* FALLTHROUGH */
+                case RESET | END:
+                        break;
+                }
+                break;
+        } while (cp < cplim); 
+        sdl->sdl_alen = cp - LLADDR(sdl);
+        new = cp - (char *)sdl;
+        if (new > sizeof(*sdl))
+                sdl->sdl_len = new;
+        return;
+}
+
+static char hexlist[] = "0123456789abcdef";
+
+char *
+link_ntoa(const struct sockaddr_dl *sdl)
+{
+        static char obuf[64];
+        char *out = obuf; 
+        int i;
+        u_char *in = (u_char *)LLADDR(sdl);
+        u_char *inlim = in + sdl->sdl_alen;
+        int firsttime = 1;
+
+        if (sdl->sdl_nlen) {
+                bcopy(sdl->sdl_data, obuf, sdl->sdl_nlen);
+                out += sdl->sdl_nlen;
+                if (sdl->sdl_alen)
+                        *out++ = ':';
+        }
+        while (in < inlim) {
+                if (firsttime)
+                        firsttime = 0;
+                else
+                        *out++ = '.';
+                i = *in++;
+                if (i > 0xf) {
+                        out[1] = hexlist[i & 0xf];
+                        i >>= 4;
+                        out[0] = hexlist[i];
+                        out += 2;
+                } else
+                        *out++ = hexlist[i];
+        }
+        *out = 0;
+        return (obuf);
+}
diff --git a/src/lib/libc/net/ntohl.c b/src/lib/libc/net/ntohl.c
new file mode 100644
index 0000000000..36414b7a13
--- /dev/null
+++ b/src/lib/libc/net/ntohl.c
@@ -0,0 +1,21 @@
+/*      $OpenBSD: ntohl.c,v 1.6 2005/08/06 20:30:03 espie Exp $ */
+/*
+ * Written by J.T. Conklin <jtc@netbsd.org>.
+ * Public domain.
+ */
+
+#include <sys/types.h>
+#include <machine/endian.h>
+
+#undef ntohl
+
+u_int32_t
+ntohl(u_int32_t x)
+{
+#if BYTE_ORDER == LITTLE_ENDIAN
+        u_char *s = (u_char *)&x;
+        return (u_int32_t)(s[0] << 24 | s[1] << 16 | s[2] << 8 | s[3]);
+#else
+        return x;
+#endif
+}
diff --git a/src/lib/libc/net/ntohs.c b/src/lib/libc/net/ntohs.c
new file mode 100644
index 0000000000..8f345e84ad
--- /dev/null
+++ b/src/lib/libc/net/ntohs.c
@@ -0,0 +1,21 @@
+/*      $OpenBSD: ntohs.c,v 1.8 2005/08/06 20:30:03 espie Exp $ */
+/*
+ * Written by J.T. Conklin <jtc@netbsd.org>.
+ * Public domain.
+ */
+
+#include <sys/types.h>
+#include <machine/endian.h>
+
+#undef ntohs
+
+u_int16_t
+ntohs(u_int16_t x)
+{
+#if BYTE_ORDER == LITTLE_ENDIAN
+        u_char *s = (u_char *) &x;
+        return (u_int16_t)(s[0] << 8 | s[1]);
+#else
+        return x;
+#endif
+}
diff --git a/src/lib/libc/net/rcmd.3 b/src/lib/libc/net/rcmd.3
new file mode 100644
index 0000000000..447aa23ff1
--- /dev/null
+++ b/src/lib/libc/net/rcmd.3
@@ -0,0 +1,266 @@
+.\"     $OpenBSD: rcmd.3,v 1.29 2014/01/21 03:15:45 schwarze Exp $
+.\"
+.\" Copyright (c) 1983, 1991, 1993
+.\"     The Regents of the University of California.  All rights reserved.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\" 3. Neither the name of the University nor the names of its contributors
+.\"    may be used to endorse or promote products derived from this software
+.\"    without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.Dd $Mdocdate: January 21 2014 $
+.Dt RCMD 3
+.Os
+.Sh NAME
+.Nm rcmd ,
+.Nm rcmd_af ,
+.Nm rresvport ,
+.Nm rresvport_af ,
+.Nm iruserok ,
+.Nm ruserok ,
+.Nm iruserok_sa
+.Nd routines for returning a stream to a remote command
+.Sh SYNOPSIS
+.In unistd.h
+.Ft int
+.Fn rcmd "char **ahost" "int inport" "const char *locuser" "const char *remuser" "const char *cmd" "int *fd2p"
+.Ft int
+.Fn rcmd_af "char **ahost" "int inport" "const char *locuser" "const char *remuser" "const char *cmd" "int *fd2p" "int af"
+.Ft int
+.Fn rresvport "int *port"
+.Ft int
+.Fn rresvport_af "int *port" "int af"
+.Ft int
+.Fn iruserok "u_int32_t raddr" "int superuser" "const char *ruser" "const char *luser"
+.Ft int
+.Fn ruserok "const char *rhost" "int superuser" "const char *ruser" "const char *luser"
+.Ft int
+.Fn iruserok_sa "const void *sa" "int salen" "int superuser" "const char *ruser" "const char *luser"
+.Sh DESCRIPTION
+The
+.Fn rcmd
+function is used by the superuser to execute a command on a remote
+machine using an authentication scheme based on reserved
+port numbers.
+If the calling process is not setuid, the
+.Ev RSH
+environment variable is set, and
+.Fa inport
+is
+.Dq shell/tcp ,
+.Xr rcmdsh 3
+is called instead with the value of
+.Ev RSH .
+Alternately, if the user is not the superuser,
+.Fn rcmd
+will invoke
+.Xr rcmdsh 3
+to run the command via
+.Xr rsh 1 .
+While
+.Fn rcmd
+can handle IPv4 cases only,
+the
+.Fn rcmd_af
+function can handle other cases as well.
+.Pp
+The
+.Fn rresvport
+and
+.Fn rresvport_af
+functions return a descriptor to a socket
+with an address in the privileged port space.
+The
+.Fn iruserok
+and
+.Fn ruserok
+functions are used by servers
+to authenticate clients requesting service with
+.Fn rcmd .
+All four functions are present in the same file and are used
+by the
+.Xr rshd 8
+server (among others).
+.Fn iruserok_sa
+is an address family independent variant of
+.Fn iruserok .
+.Pp
+The
+.Fn rcmd
+function looks up the host
+.Fa *ahost
+using
+.Xr gethostbyname 3 ,
+returning \-1 if the host does not exist.
+Otherwise
+.Fa *ahost
+is set to the standard name of the host
+and a connection is established to a server
+residing at the well-known Internet port
+.Fa inport .
+If the user is not the superuser, the only valid port is
+.Dq shell/tcp
+(usually port 514).
+.Pp
+If the connection succeeds,
+a socket in the Internet domain of type
+.Dv SOCK_STREAM
+is returned to the caller, and given to the remote
+command as stdin and stdout.
+If
+.Fa fd2p
+is non-zero, then an auxiliary channel to a control
+process will be set up, and a descriptor for it will be placed
+in
+.Fa *fd2p .
+The control process will return diagnostic
+output from the command (unit 2) on this channel, and will also
+accept bytes on this channel as being
+.Tn UNIX
+signal numbers, to be
+forwarded to the process group of the command.
+If
+.Fa fd2p
+is
+.Va NULL ,
+then the standard error (unit 2 of the remote command) will be made
+the same as the standard output and no provision is made for sending
+arbitrary signals to the remote process, although you may be able to
+get its attention by using out-of-band data.
+Note that if the user is not the superuser,
+.Fa fd2p
+must be
+.Va NULL .
+.Pp
+.Fn rcmd_af
+takes address family in the last argument.
+If the last argument is
+.Dv PF_UNSPEC ,
+interpretation of
+.Fa *ahost
+will obey the underlying address resolution like DNS.
+.Pp
+The protocol is described in detail in
+.Xr rshd 8 .
+.Pp
+The
+.Fn rresvport
+and
+.Fn rresvport_af
+functions are used to obtain a socket with a privileged
+address bound to it.
+This socket is suitable for use by
+.Fn rcmd
+and several other functions.
+Privileged Internet ports are those in the range 0 to
+.Va IPPORT_RESERVED - 1 ,
+which happens to be 1023.
+Only the superuser is allowed to bind an address of this sort to a socket.
+.Fn rresvport
+and
+.Fn rresvport_af
+need to be seeded with a port number; if that port
+is not available these functions will find another.
+.Pp
+The
+.Fn iruserok
+and
+.Fn ruserok
+functions take a remote host's IP address or name, respectively,
+two user names and a flag indicating whether the local user's
+name is that of the superuser.
+Then, if the user is
+.Em not
+the superuser, it checks the
+.Pa /etc/hosts.equiv
+file.
+If that lookup is not done, or is unsuccessful, the
+.Pa .rhosts
+in the local user's home directory is checked to see if the request for
+service is allowed.
+.Pp
+If this file does not exist, is not a regular file, is owned by anyone
+other than the user or the superuser, or is writeable by anyone other
+than the owner, the check automatically fails.
+Zero is returned if the machine name is listed in the
+.Pa hosts.equiv
+file, or the host and remote user name are found in the
+.Pa .rhosts
+file; otherwise
+.Fn iruserok
+and
+.Fn ruserok
+return \-1.
+If the local domain (as obtained from
+.Xr gethostname 3 )
+is the same as the remote domain, only the machine name need be specified.
+.Pp
+If the IP address of the remote host is known,
+.Fn iruserok
+should be used in preference to
+.Fn ruserok ,
+as it does not require trusting the DNS server for the remote host's domain.
+.Pp
+While
+.Fn iruserok
+can handle IPv4 addresses only,
+.Fn iruserok_sa
+and
+.Fn ruserok
+can handle other address families as well, like IPv6.
+The first argument of
+.Fn iruserok_sa
+is typed as
+.Li "void *"
+to avoid dependency between
+.In unistd.h
+and
+.In sys/socket.h .
+.Sh DIAGNOSTICS
+The
+.Fn rcmd
+function returns a valid socket descriptor on success.
+It returns \-1 on error and prints a diagnostic message on the standard error.
+.Pp
+The
+.Fn rresvport
+and
+.Fn rresvport_af
+functions return a valid, bound socket descriptor on success.
+It returns \-1 on error with the global value
+.Va errno
+set according to the reason for failure.
+The error code
+.Er EAGAIN
+is overloaded to mean
+.Dq all network ports in use .
+.Sh SEE ALSO
+.Xr rsh 1 ,
+.Xr intro 2 ,
+.Xr bindresvport 3 ,
+.Xr bindresvport_sa 3 ,
+.Xr rcmdsh 3 ,
+.Xr rshd 8
+.Sh HISTORY
+These
+functions appeared in
+.Bx 4.2 .
diff --git a/src/lib/libc/net/rcmd.c b/src/lib/libc/net/rcmd.c
new file mode 100644
index 0000000000..d566e0ca4c
--- /dev/null
+++ b/src/lib/libc/net/rcmd.c
@@ -0,0 +1,303 @@
+/*
+ * Copyright (c) 1995, 1996, 1998 Theo de Raadt.  All rights reserved.
+ * Copyright (c) 1983, 1993, 1994
+ *      The Regents of the University of California.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <sys/param.h>
+#include <sys/socket.h>
+#include <sys/stat.h>
+
+#include <netinet/in.h>
+#include <arpa/inet.h>
+
+#include <signal.h>
+#include <fcntl.h>
+#include <netdb.h>
+#include <unistd.h>
+#include <pwd.h>
+#include <errno.h>
+#include <stdio.h>
+#include <ctype.h>
+#include <string.h>
+#include <syslog.h>
+#include <stdlib.h>
+
+int
+rcmd(char **ahost, int rport, const char *locuser, const char *remuser,
+    const char *cmd, int *fd2p)
+{
+        return rcmd_af(ahost, rport, locuser, remuser, cmd, fd2p, AF_INET);
+}
+
+int
+rcmd_af(char **ahost, int porta, const char *locuser, const char *remuser,
+    const char *cmd, int *fd2p, int af)
+{
+        static char hbuf[MAXHOSTNAMELEN];
+        char pbuf[NI_MAXSERV];
+        struct addrinfo hints, *res, *r;
+        int error;
+        struct sockaddr_storage from;
+        fd_set *readsp = NULL;
+        sigset_t oldmask, mask;
+        pid_t pid;
+        int s, lport, timo;
+        char c, *p;
+        int refused;
+        in_port_t rport = porta;
+
+        /* call rcmdsh() with specified remote shell if appropriate. */
+        if (!issetugid() && (p = getenv("RSH")) && *p) {
+                struct servent *sp = getservbyname("shell", "tcp");
+
+                if (sp && sp->s_port == rport)
+                        return (rcmdsh(ahost, rport, locuser, remuser,
+                            cmd, p));
+        }
+
+        /* use rsh(1) if non-root and remote port is shell. */
+        if (geteuid()) {
+                struct servent *sp = getservbyname("shell", "tcp");
+
+                if (sp && sp->s_port == rport)
+                        return (rcmdsh(ahost, rport, locuser, remuser,
+                            cmd, NULL));
+        }
+
+        pid = getpid();
+        snprintf(pbuf, sizeof(pbuf), "%u", ntohs(rport));
+        memset(&hints, 0, sizeof(hints));
+        hints.ai_family = af;
+        hints.ai_socktype = SOCK_STREAM;
+        hints.ai_flags = AI_CANONNAME;
+        error = getaddrinfo(*ahost, pbuf, &hints, &res);
+        if (error) {
+#if 0
+                warnx("%s: %s", *ahost, gai_strerror(error));
+#endif
+                return (-1);
+        }
+        if (res->ai_canonname) {
+                strlcpy(hbuf, res->ai_canonname, sizeof(hbuf));
+                *ahost = hbuf;
+        } else
+                ; /*XXX*/
+
+        r = res;
+        refused = 0;
+        sigemptyset(&mask);
+        sigaddset(&mask, SIGURG);
+        sigprocmask(SIG_BLOCK, &mask, &oldmask);
+        for (timo = 1, lport = IPPORT_RESERVED - 1;;) {
+                s = rresvport_af(&lport, r->ai_family);
+                if (s < 0) {
+                        if (errno == EAGAIN)
+                                (void)fprintf(stderr,
+                                    "rcmd: socket: All ports in use\n");
+                        else
+                                (void)fprintf(stderr, "rcmd: socket: %s\n",
+                                    strerror(errno));
+                        if (r->ai_next) {
+                                r = r->ai_next;
+                                continue;
+                        } else {
+                                sigprocmask(SIG_SETMASK, &oldmask, NULL);
+                                freeaddrinfo(res);
+                                return (-1);
+                        }
+                }
+                fcntl(s, F_SETOWN, pid);
+                if (connect(s, r->ai_addr, r->ai_addrlen) >= 0)
+                        break;
+                (void)close(s);
+                if (errno == EADDRINUSE) {
+                        lport--;
+                        continue;
+                }
+                if (errno == ECONNREFUSED)
+                        refused++;
+                if (r->ai_next) {
+                        int oerrno = errno;
+                        char hbuf[NI_MAXHOST];
+                        const int niflags = NI_NUMERICHOST;
+
+                        hbuf[0] = '\0';
+                        if (getnameinfo(r->ai_addr, r->ai_addrlen,
+                            hbuf, sizeof(hbuf), NULL, 0, niflags) != 0)
+                                strlcpy(hbuf, "(invalid)", sizeof hbuf);
+                        (void)fprintf(stderr, "connect to address %s: ", hbuf);
+                        errno = oerrno;
+                        perror(0);
+                        r = r->ai_next;
+                        hbuf[0] = '\0';
+                        if (getnameinfo(r->ai_addr, r->ai_addrlen,
+                            hbuf, sizeof(hbuf), NULL, 0, niflags) != 0)
+                                strlcpy(hbuf, "(invalid)", sizeof hbuf);
+                        (void)fprintf(stderr, "Trying %s...\n", hbuf);
+                        continue;
+                }
+                if (refused && timo <= 16) {
+                        (void)sleep(timo);
+                        timo *= 2;
+                        r = res;
+                        refused = 0;
+                        continue;
+                }
+                (void)fprintf(stderr, "%s: %s\n", res->ai_canonname,
+                    strerror(errno));
+                sigprocmask(SIG_SETMASK, &oldmask, NULL);
+                freeaddrinfo(res);
+                return (-1);
+        }
+        /* given "af" can be PF_UNSPEC, we need the real af for "s" */
+        af = r->ai_family;
+        freeaddrinfo(res);
+#if 0
+        /*
+         * try to rresvport() to the same port. This will make rresvport()
+         * fail it's first bind, resulting in it choosing a random port.
+         */
+        lport--;
+#endif
+        if (fd2p == 0) {
+                write(s, "", 1);
+                lport = 0;
+        } else {
+                char num[8];
+                int s2 = rresvport_af(&lport, af), s3;
+                socklen_t len = sizeof(from);
+                int fdssize = howmany(MAX(s, s2)+1, NFDBITS) * sizeof(fd_mask);
+
+                if (s2 < 0)
+                        goto bad;
+                readsp = (fd_set *)malloc(fdssize);
+                if (readsp == NULL) {
+                        close(s2);
+                        goto bad;
+                }
+                listen(s2, 1);
+                (void)snprintf(num, sizeof(num), "%d", lport);
+                if (write(s, num, strlen(num)+1) != strlen(num)+1) {
+                        (void)fprintf(stderr,
+                            "rcmd: write (setting up stderr): %s\n",
+                            strerror(errno));
+                        (void)close(s2);
+                        goto bad;
+                }
+again:
+                bzero(readsp, fdssize);
+                FD_SET(s, readsp);
+                FD_SET(s2, readsp);
+                errno = 0;
+                if (select(MAX(s, s2) + 1, readsp, 0, 0, 0) < 1 ||
+                    !FD_ISSET(s2, readsp)) {
+                        if (errno != 0)
+                                (void)fprintf(stderr,
+                                    "rcmd: select (setting up stderr): %s\n",
+                                    strerror(errno));
+                        else
+                                (void)fprintf(stderr,
+                                "select: protocol failure in circuit setup\n");
+                        (void)close(s2);
+                        goto bad;
+                }
+                s3 = accept(s2, (struct sockaddr *)&from, &len);
+                if (s3 < 0) {
+                        (void)fprintf(stderr,
+                            "rcmd: accept: %s\n", strerror(errno));
+                        lport = 0;
+                        close(s2);
+                        goto bad;
+                }
+
+                /*
+                 * XXX careful for ftp bounce attacks. If discovered, shut them
+                 * down and check for the real auxiliary channel to connect.
+                 */
+                switch (from.ss_family) {
+                case AF_INET:
+                case AF_INET6:
+                        if (getnameinfo((struct sockaddr *)&from, len,
+                            NULL, 0, num, sizeof(num), NI_NUMERICSERV) == 0 &&
+                            atoi(num) != 20) {
+                                break;
+                        }
+                        close(s3);
+                        goto again;
+                default:
+                        break;
+                }
+                (void)close(s2);
+
+                *fd2p = s3;
+                switch (from.ss_family) {
+                case AF_INET:
+                case AF_INET6:
+                        if (getnameinfo((struct sockaddr *)&from, len,
+                            NULL, 0, num, sizeof(num), NI_NUMERICSERV) != 0 ||
+                            (atoi(num) >= IPPORT_RESERVED ||
+                             atoi(num) < IPPORT_RESERVED / 2)) {
+                                (void)fprintf(stderr,
+                                    "socket: protocol failure in circuit setup.\n");
+                                goto bad2;
+                        }
+                        break;
+                default:
+                        break;
+                }
+        }
+        (void)write(s, locuser, strlen(locuser)+1);
+        (void)write(s, remuser, strlen(remuser)+1);
+        (void)write(s, cmd, strlen(cmd)+1);
+        if (read(s, &c, 1) != 1) {
+                (void)fprintf(stderr,
+                    "rcmd: %s: %s\n", *ahost, strerror(errno));
+                goto bad2;
+        }
+        if (c != 0) {
+                while (read(s, &c, 1) == 1) {
+                        (void)write(STDERR_FILENO, &c, 1);
+                        if (c == '\n')
+                                break;
+                }
+                goto bad2;
+        }
+        sigprocmask(SIG_SETMASK, &oldmask, NULL);
+        free(readsp);
+        return (s);
+bad2:
+        if (lport)
+                (void)close(*fd2p);
+bad:
+        if (readsp)
+                free(readsp);
+        (void)close(s);
+        sigprocmask(SIG_SETMASK, &oldmask, NULL);
+        return (-1);
+}
+
diff --git a/src/lib/libc/net/rcmdsh.3 b/src/lib/libc/net/rcmdsh.3
new file mode 100644
index 0000000000..c84a2e4d93
--- /dev/null
+++ b/src/lib/libc/net/rcmdsh.3
@@ -0,0 +1,96 @@
+.\"     $OpenBSD: rcmdsh.3,v 1.14 2013/06/05 03:39:23 tedu Exp $
+.\"
+.\" Copyright (c) 1983, 1991, 1993
+.\"     The Regents of the University of California.  All rights reserved.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\" 3. Neither the name of the University nor the names of its contributors
+.\"    may be used to endorse or promote products derived from this software
+.\"    without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.Dd $Mdocdate: June 5 2013 $
+.Dt RCMDSH 3
+.Os
+.Sh NAME
+.Nm rcmdsh
+.Nd return a stream to a remote command without superuser
+.Sh SYNOPSIS
+.In unistd.h
+.Ft int
+.Fn rcmdsh "char **ahost" "int inport" "const char *locuser" "const char *remuser" "const char *cmd" "char *rshprog"
+.Sh DESCRIPTION
+The
+.Fn rcmdsh
+function is used by normal users to execute a command on a remote machine
+using an authentication scheme based on reserved port numbers using
+.Xr rsh 1
+or the value of
+.Fa rshprog
+(if non-null).
+.Fa rshprog
+may be a fully-qualified path, a non-qualified command, or a command containing
+space-separated command line arguments.
+.Pp
+The
+.Fn rcmdsh
+function looks up the host
+.Fa *ahost
+using
+.Xr gethostbyname 3 ,
+returning \-1 if the host does not exist.
+Otherwise
+.Fa *ahost
+is set to the standard name of the host and a connection is established to
+a server residing at the well-known Internet port
+.Li shell/tcp
+(or whatever port is used by
+.Fa rshprog ) .
+The parameter
+.Fa inport
+is ignored; it is only included to provide an interface similar to
+.Xr rcmd 3 .
+.Pp
+If the connection succeeds, a socket in the
+.Ux Ns -domain
+of type
+.Dv SOCK_STREAM
+is returned to the caller, and given to the remote
+command as stdin and stdout, and stderr.
+.Sh DIAGNOSTICS
+The
+.Fn rcmdsh
+function returns a valid socket descriptor on success.
+It returns \-1 on error and prints a diagnostic message on the standard error.
+.Sh SEE ALSO
+.Xr rsh 1 ,
+.Xr socketpair 2 ,
+.Xr rcmd 3 ,
+.Xr rshd 8
+.Sh HISTORY
+The
+.Fn rcmdsh
+function first appeared in
+.Ox 2.0 .
+.Sh BUGS
+If
+.Xr rsh 1
+encounters an error, a file descriptor is still returned instead of \-1.
diff --git a/src/lib/libc/net/rcmdsh.c b/src/lib/libc/net/rcmdsh.c
new file mode 100644
index 0000000000..a472162711
--- /dev/null
+++ b/src/lib/libc/net/rcmdsh.c
@@ -0,0 +1,186 @@
+/*      $OpenBSD: rcmdsh.c,v 1.12 2007/09/02 15:19:17 deraadt Exp $     */ 
+
+/*
+ * Copyright (c) 2001, MagniComp
+ * All rights reserved.
+ * 
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright 
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright 
+ *    notice, this list of conditions and the following disclaimer in 
+ *    the documentation and/or other materials provided with the distribution. 
+ * 3. Neither the name of the MagniComp nor the names of its contributors may
+ *    be used to endorse or promote products derived from this software
+ *    without specific prior written permission. 
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR
+ * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+ * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
+ * USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+/*
+ * This is an rcmd() replacement originally by 
+ * Chris Siebenmann <cks@utcc.utoronto.ca>.
+ */
+
+#include      <sys/types.h>
+#include      <sys/socket.h>
+#include      <sys/wait.h>
+#include      <signal.h>
+#include      <errno.h>
+#include      <netdb.h>
+#include      <stdio.h>
+#include      <stdlib.h>
+#include      <string.h>
+#include      <pwd.h>
+#include      <paths.h>
+#include      <unistd.h>
+
+/*
+ * This is a replacement rcmd() function that uses the rsh(1)
+ * program in place of a direct rcmd(3) function call so as to
+ * avoid having to be root.  Note that rport is ignored.
+ */
+/* ARGSUSED */
+int
+rcmdsh(char **ahost, int rport, const char *locuser, const char *remuser,
+    const char *cmd, char *rshprog)
+{
+        struct hostent *hp;
+        int sp[2];
+        pid_t cpid;
+        char *p;
+        struct passwd *pw;
+
+        /* What rsh/shell to use. */
+        if (rshprog == NULL)
+                rshprog = _PATH_RSH;
+
+        /* locuser must exist on this host. */
+        if ((pw = getpwnam(locuser)) == NULL) {
+                (void) fprintf(stderr, "rcmdsh: unknown user: %s\n", locuser);
+                return(-1);
+        }
+
+        /* Validate remote hostname. */
+        if (strcmp(*ahost, "localhost") != 0) {
+                if (((hp = gethostbyname2(*ahost, AF_INET)) == NULL) &&
+                    ((hp = gethostbyname2(*ahost, AF_INET6)) == NULL)) {
+                        herror(*ahost);
+                        return(-1);
+                }
+                *ahost = hp->h_name;
+        }
+
+        /* Get a socketpair we'll use for stdin and stdout. */
+        if (socketpair(AF_UNIX, SOCK_STREAM, PF_UNSPEC, sp) < 0) {
+                perror("rcmdsh: socketpair");
+                return(-1);
+        }
+
+        cpid = fork();
+        if (cpid < 0) {
+                perror("rcmdsh: fork failed");
+                return(-1);
+        } else if (cpid == 0) {
+                /*
+                 * Child.  We use sp[1] to be stdin/stdout, and close sp[0].
+                 */
+                (void) close(sp[0]);
+                if (dup2(sp[1], 0) < 0 || dup2(0, 1) < 0) {
+                        perror("rcmdsh: dup2 failed");
+                        _exit(255);
+                }
+                /* Fork again to lose parent. */
+                cpid = fork();
+                if (cpid < 0) {
+                        perror("rcmdsh: fork to lose parent failed");
+                        _exit(255);
+                }
+                if (cpid > 0)
+                        _exit(0);
+
+                /* In grandchild here.  Become local user for rshprog. */
+                if (setuid(pw->pw_uid)) {
+                        (void) fprintf(stderr, "rcmdsh: setuid(%u): %s\n",
+                                       pw->pw_uid, strerror(errno));
+                        _exit(255);
+                }
+
+                /*
+                 * If remote host is "localhost" and local and remote user
+                 * are the same, avoid running remote shell for efficiency.
+                 */
+                if (!strcmp(*ahost, "localhost") && !strcmp(locuser, remuser)) {
+                        char *argv[4];
+                        if (pw->pw_shell[0] == '\0')
+                                rshprog = _PATH_BSHELL;
+                        else
+                                rshprog = pw->pw_shell;
+                        p = strrchr(rshprog, '/');
+                        argv[0] = p ? p + 1 : rshprog;
+                        argv[1] = "-c";
+                        argv[2] = (char *)cmd;
+                        argv[3] = NULL;
+                        execvp(rshprog, argv);
+                } else if ((p = strchr(rshprog, ' ')) == NULL) {
+                        /* simple case */
+                        char *argv[6];
+                        p = strrchr(rshprog, '/');
+                        argv[0] = p ? p + 1 : rshprog;
+                        argv[1] = "-l";
+                        argv[2] = (char *)remuser;
+                        argv[3] = *ahost;
+                        argv[4] = (char *)cmd;
+                        argv[5] = NULL;
+                        execvp(rshprog, argv);
+                } else {
+                        /* must pull args out of rshprog and dyn alloc argv */
+                        char **argv, **ap;
+                        int n;
+                        for (n = 7; (p = strchr(++p, ' ')) != NULL; n++)
+                                continue;
+                        rshprog = strdup(rshprog);
+                        ap = argv = calloc(sizeof(char *), n);
+                        if (rshprog == NULL || argv == NULL) {
+                                perror("rcmdsh");
+                                _exit(255);
+                        }
+                        while ((p = strsep(&rshprog, " ")) != NULL) {
+                                if (*p == '\0')
+                                        continue;
+                                *ap++ = p;
+                        }
+                        if (ap != argv)         /* all spaces?!? */
+                                rshprog = argv[0];
+                        if ((p = strrchr(argv[0], '/')) != NULL)
+                                argv[0] = p + 1;
+                        *ap++ = "-l";
+                        *ap++ = (char *)remuser;
+                        *ap++ = *ahost;
+                        *ap++ = (char *)cmd;
+                        *ap++ = NULL;
+                        execvp(rshprog, argv);
+                }
+                (void) fprintf(stderr, "rcmdsh: execvp %s failed: %s\n",
+                               rshprog, strerror(errno));
+                _exit(255);
+        } else {
+                /* Parent. close sp[1], return sp[0]. */
+                (void) close(sp[1]);
+                /* Reap child. */
+                (void) wait(NULL);
+                return(sp[0]);
+        }
+        /* NOTREACHED */
+}
diff --git a/src/lib/libc/net/recv.c b/src/lib/libc/net/recv.c
new file mode 100644
index 0000000000..6241cc6b12
--- /dev/null
+++ b/src/lib/libc/net/recv.c
@@ -0,0 +1,40 @@
+/*      $OpenBSD: recv.c,v 1.5 2005/08/06 20:30:03 espie Exp $ */
+/*
+ * Copyright (c) 1988, 1993
+ *      The Regents of the University of California.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <sys/types.h>
+#include <sys/socket.h>
+
+#include <stddef.h>
+
+ssize_t
+recv(int s, void *buf, size_t len, int flags)
+{
+        return (recvfrom(s, buf, len, flags, NULL, 0));
+}
diff --git a/src/lib/libc/net/res_comp.c b/src/lib/libc/net/res_comp.c
new file mode 100644
index 0000000000..69a6ce0abb
--- /dev/null
+++ b/src/lib/libc/net/res_comp.c
@@ -0,0 +1,475 @@
+/*      $OpenBSD: res_comp.c,v 1.14 2008/04/16 22:35:23 deraadt Exp $   */
+
+/*
+ * ++Copyright++ 1985, 1993
+ * -
+ * Copyright (c) 1985, 1993
+ *    The Regents of the University of California.  All rights reserved.
+ * 
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ * 
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ * -
+ * Portions Copyright (c) 1993 by Digital Equipment Corporation.
+ * 
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies, and that
+ * the name of Digital Equipment Corporation not be used in advertising or
+ * publicity pertaining to distribution of the document or software without
+ * specific, written prior permission.
+ * 
+ * THE SOFTWARE IS PROVIDED "AS IS" AND DIGITAL EQUIPMENT CORP. DISCLAIMS ALL
+ * WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS.   IN NO EVENT SHALL DIGITAL EQUIPMENT
+ * CORPORATION BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
+ * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
+ * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS
+ * ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
+ * SOFTWARE.
+ * -
+ * --Copyright--
+ */
+
+#include <sys/types.h>
+#include <sys/param.h>
+#include <netinet/in.h>
+#include <arpa/nameser.h>
+
+#include <stdio.h>
+#include <resolv.h>
+#include <ctype.h>
+
+#include <unistd.h>
+#include <string.h>
+
+static int dn_find(u_char *, u_char *, u_char **, u_char **);
+
+/*
+ * Expand compressed domain name 'comp_dn' to full domain name.
+ * 'msg' is a pointer to the begining of the message,
+ * 'eomorig' points to the first location after the message,
+ * 'exp_dn' is a pointer to a buffer of size 'length' for the result.
+ * Return size of compressed name or -1 if there was an error.
+ */
+int
+dn_expand(const u_char *msg, const u_char *eomorig, const u_char *comp_dn,
+    char *exp_dn, int length)
+{
+        const u_char *cp;
+        char *dn;
+        int n, c;
+        char *eom;
+        int len = -1, checked = 0;
+
+        dn = exp_dn;
+        cp = comp_dn;
+        if (length > MAXHOSTNAMELEN-1)
+                length = MAXHOSTNAMELEN-1;
+        eom = exp_dn + length;
+        /*
+         * fetch next label in domain name
+         */
+        while ((n = *cp++)) {
+                /*
+                 * Check for indirection
+                 */
+                switch (n & INDIR_MASK) {
+                case 0:
+                        if (dn != exp_dn) {
+                                if (dn >= eom)
+                                        return (-1);
+                                *dn++ = '.';
+                        }
+                        if (dn+n >= eom)
+                                return (-1);
+                        checked += n + 1;
+                        while (--n >= 0) {
+                                if (((c = *cp++) == '.') || (c == '\\')) {
+                                        if (dn + n + 2 >= eom)
+                                                return (-1);
+                                        *dn++ = '\\';
+                                }
+                                *dn++ = c;
+                                if (cp >= eomorig)      /* out of range */
+                                        return (-1);
+                        }
+                        break;
+
+                case INDIR_MASK:
+                        if (len < 0)
+                                len = cp - comp_dn + 1;
+                        cp = msg + (((n & 0x3f) << 8) | (*cp & 0xff));
+                        if (cp < msg || cp >= eomorig)  /* out of range */
+                                return (-1);
+                        checked += 2;
+                        /*
+                         * Check for loops in the compressed name;
+                         * if we've looked at the whole message,
+                         * there must be a loop.
+                         */
+                        if (checked >= eomorig - msg)
+                                return (-1);
+                        break;
+
+                default:
+                        return (-1);                    /* flag error */
+                }
+        }
+        *dn = '\0';
+        if (len < 0)
+                len = cp - comp_dn;
+        return (len);
+}
+
+/*
+ * Compress domain name 'exp_dn' into 'comp_dn'.
+ * Return the size of the compressed name or -1.
+ * 'length' is the size of the array pointed to by 'comp_dn'.
+ * 'dnptrs' is a list of pointers to previous compressed names. dnptrs[0]
+ * is a pointer to the beginning of the message. The list ends with NULL.
+ * 'lastdnptr' is a pointer to the end of the arrary pointed to
+ * by 'dnptrs'. Side effect is to update the list of pointers for
+ * labels inserted into the message as we compress the name.
+ * If 'dnptr' is NULL, we don't try to compress names. If 'lastdnptr'
+ * is NULL, we don't update the list.
+ */
+int
+dn_comp(const char *exp_dn, u_char *comp_dn, int length, u_char **dnptrs,
+    u_char **lastdnptr)
+{
+        u_char *cp, *dn;
+        int c, l;
+        u_char **cpp, **lpp, *sp, *eob;
+        u_char *msg;
+
+        dn = (u_char *)exp_dn;
+        cp = comp_dn;
+        eob = cp + length;
+        lpp = cpp = NULL;
+        if (dnptrs != NULL) {
+                if ((msg = *dnptrs++) != NULL) {
+                        for (cpp = dnptrs; *cpp != NULL; cpp++)
+                                ;
+                        lpp = cpp;      /* end of list to search */
+                }
+        } else
+                msg = NULL;
+        for (c = *dn++; c != '\0'; ) {
+                /* look to see if we can use pointers */
+                if (msg != NULL) {
+                        if ((l = dn_find(dn-1, msg, dnptrs, lpp)) >= 0) {
+                                if (cp+1 >= eob)
+                                        return (-1);
+                                *cp++ = (l >> 8) | INDIR_MASK;
+                                *cp++ = l % 256;
+                                return (cp - comp_dn);
+                        }
+                        /* not found, save it */
+                        if (lastdnptr != NULL && cpp < lastdnptr-1) {
+                                *cpp++ = cp;
+                                *cpp = NULL;
+                        }
+                }
+                sp = cp++;      /* save ptr to length byte */
+                do {
+                        if (c == '.') {
+                                c = *dn++;
+                                break;
+                        }
+                        if (c == '\\') {
+                                if ((c = *dn++) == '\0')
+                                        break;
+                        }
+                        if (cp >= eob) {
+                                if (msg != NULL)
+                                        *lpp = NULL;
+                                return (-1);
+                        }
+                        *cp++ = c;
+                } while ((c = *dn++) != '\0');
+                /* catch trailing '.'s but not '..' */
+                if ((l = cp - sp - 1) == 0 && c == '\0') {
+                        cp--;
+                        break;
+                }
+                if (l <= 0 || l > MAXLABEL) {
+                        if (msg != NULL)
+                                *lpp = NULL;
+                        return (-1);
+                }
+                *sp = l;
+        }
+        if (cp >= eob) {
+                if (msg != NULL)
+                        *lpp = NULL;
+                return (-1);
+        }
+        *cp++ = '\0';
+        return (cp - comp_dn);
+}
+
+/*
+ * Skip over a compressed domain name. Return the size or -1.
+ */
+int
+__dn_skipname(const u_char *comp_dn, const u_char *eom)
+{
+        const u_char *cp;
+        int n;
+
+        cp = comp_dn;
+        while (cp < eom && (n = *cp++)) {
+                /*
+                 * check for indirection
+                 */
+                switch (n & INDIR_MASK) {
+                case 0:                 /* normal case, n == len */
+                        cp += n;
+                        continue;
+                case INDIR_MASK:        /* indirection */
+                        cp++;
+                        break;
+                default:                /* illegal type */
+                        return (-1);
+                }
+                break;
+        }
+        if (cp > eom)
+                return (-1);
+        return (cp - comp_dn);
+}
+
+static int
+mklower(int ch)
+{
+        if (isascii(ch) && isupper(ch))
+                return (tolower(ch));
+        return (ch);
+}
+
+/*
+ * Search for expanded name from a list of previously compressed names.
+ * Return the offset from msg if found or -1.
+ * dnptrs is the pointer to the first name on the list,
+ * not the pointer to the start of the message.
+ */
+static int
+dn_find(u_char *exp_dn, u_char *msg, u_char **dnptrs, u_char **lastdnptr)
+{
+        u_char *dn, *cp, **cpp;
+        int n;
+        u_char *sp;
+
+        for (cpp = dnptrs; cpp < lastdnptr; cpp++) {
+                dn = exp_dn;
+                sp = cp = *cpp;
+                while ((n = *cp++)) {
+                        /*
+                         * check for indirection
+                         */
+                        switch (n & INDIR_MASK) {
+                        case 0:         /* normal case, n == len */
+                                while (--n >= 0) {
+                                        if (*dn == '.')
+                                                goto next;
+                                        if (*dn == '\\')
+                                                dn++;
+                                        if (mklower(*dn++) != mklower(*cp++))
+                                                goto next;
+                                }
+                                if ((n = *dn++) == '\0' && *cp == '\0')
+                                        return (sp - msg);
+                                if (n == '.')
+                                        continue;
+                                goto next;
+
+                        case INDIR_MASK:        /* indirection */
+                                cp = msg + (((n & 0x3f) << 8) | *cp);
+                                break;
+
+                        default:        /* illegal type */
+                                return (-1);
+                        }
+                }
+                if (*dn == '\0')
+                        return (sp - msg);
+        next:   ;
+        }
+        return (-1);
+}
+
+/*
+ * Verify that a domain name uses an acceptable character set.
+ */
+
+/*
+ * Note the conspicuous absence of ctype macros in these definitions.  On
+ * non-ASCII hosts, we can't depend on string literals or ctype macros to
+ * tell us anything about network-format data.  The rest of the BIND system
+ * is not careful about this, but for some reason, we're doing it right here.
+ */
+#define PERIOD 0x2e
+#define hyphenchar(c) ((c) == 0x2d)
+#define bslashchar(c) ((c) == 0x5c)
+#define underscorechar(c) ((c) == 0x5f)
+#define periodchar(c) ((c) == PERIOD)
+#define asterchar(c) ((c) == 0x2a)
+#define alphachar(c) (((c) >= 0x41 && (c) <= 0x5a) \
+                   || ((c) >= 0x61 && (c) <= 0x7a))
+#define digitchar(c) ((c) >= 0x30 && (c) <= 0x39)
+
+#define borderchar(c) (alphachar(c) || digitchar(c))
+#define middlechar(c) (borderchar(c) || hyphenchar(c) || underscorechar(c))
+#define domainchar(c) ((c) > 0x20 && (c) < 0x7f)
+
+int
+res_hnok(const char *dn)
+{
+        int pch = PERIOD, ch = *dn++;
+
+        while (ch != '\0') {
+                int nch = *dn++;
+
+                if (periodchar(ch)) {
+                        ;
+                } else if (periodchar(pch)) {
+                        if (!borderchar(ch))
+                                return (0);
+                } else if (periodchar(nch) || nch == '\0') {
+                        if (!borderchar(ch))
+                                return (0);
+                } else {
+                        if (!middlechar(ch))
+                                return (0);
+                }
+                pch = ch, ch = nch;
+        }
+        return (1);
+}
+
+/*
+ * hostname-like (A, MX, WKS) owners can have "*" as their first label
+ * but must otherwise be as a host name.
+ */
+int
+res_ownok(const char *dn)
+{
+        if (asterchar(dn[0])) {
+                if (periodchar(dn[1]))
+                        return (res_hnok(dn+2));
+                if (dn[1] == '\0')
+                        return (1);
+        }
+        return (res_hnok(dn));
+}
+
+/*
+ * SOA RNAMEs and RP RNAMEs can have any printable character in their first
+ * label, but the rest of the name has to look like a host name.
+ */
+int
+res_mailok(const char *dn)
+{
+        int ch, escaped = 0;
+
+        /* "." is a valid missing representation */
+        if (*dn == '\0')
+                return(1);
+
+        /* otherwise <label>.<hostname> */
+        while ((ch = *dn++) != '\0') {
+                if (!domainchar(ch))
+                        return (0);
+                if (!escaped && periodchar(ch))
+                        break;
+                if (escaped)
+                        escaped = 0;
+                else if (bslashchar(ch))
+                        escaped = 1;
+        }
+        if (periodchar(ch))
+                return (res_hnok(dn));
+        return(0);
+}
+
+/*
+ * This function is quite liberal, since RFC 1034's character sets are only
+ * recommendations.
+ */
+int
+res_dnok(const char *dn)
+{
+        int ch;
+
+        while ((ch = *dn++) != '\0')
+                if (!domainchar(ch))
+                        return (0);
+        return (1);
+}
+
+/*
+ * Routines to insert/extract short/long's.
+ */
+
+u_int16_t
+_getshort(const u_char *msgp)
+{
+        u_int16_t u;
+
+        GETSHORT(u, msgp);
+        return (u);
+}
+
+#ifdef NeXT
+/*
+ * nExt machines have some funky library conventions, which we must maintain.
+ */
+u_int16_t
+res_getshort(msgp)
+        const u_char *msgp;
+{
+        return (_getshort(msgp));
+}
+#endif
+
+u_int32_t
+_getlong(const u_char *msgp)
+{
+        u_int32_t u;
+
+        GETLONG(u, msgp);
+        return (u);
+}
+
+void
+__putshort(u_int16_t s, u_char *msgp)
+{
+        PUTSHORT(s, msgp);
+}
+
+void
+__putlong(u_int32_t l, u_char *msgp)
+{
+        PUTLONG(l, msgp);
+}
diff --git a/src/lib/libc/net/res_data.c b/src/lib/libc/net/res_data.c
new file mode 100644
index 0000000000..a5f6b03a7f
--- /dev/null
+++ b/src/lib/libc/net/res_data.c
@@ -0,0 +1,105 @@
+/*      $OpenBSD: res_data.c,v 1.3 2005/08/06 20:30:03 espie Exp $      */
+
+/*
+ * ++Copyright++ 1995
+ * -
+ * Copyright (c) 1995
+ *    The Regents of the University of California.  All rights reserved.
+ * 
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ * 
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ * -
+ * Portions Copyright (c) 1993 by Digital Equipment Corporation.
+ * 
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies, and that
+ * the name of Digital Equipment Corporation not be used in advertising or
+ * publicity pertaining to distribution of the document or software without
+ * specific, written prior permission.
+ * 
+ * THE SOFTWARE IS PROVIDED "AS IS" AND DIGITAL EQUIPMENT CORP. DISCLAIMS ALL
+ * WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS.   IN NO EVENT SHALL DIGITAL EQUIPMENT
+ * CORPORATION BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
+ * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
+ * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS
+ * ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
+ * SOFTWARE.
+ * -
+ * --Copyright--
+ */
+
+#include <sys/types.h>
+#include <sys/param.h>
+#include <sys/socket.h>
+#include <sys/time.h>
+#include <netinet/in.h>
+#include <arpa/inet.h>
+#include <arpa/nameser.h>
+
+#include <stdio.h>
+#include <ctype.h>
+#include <resolv.h>
+#include <unistd.h>
+#include <stdlib.h>
+#include <string.h>
+
+const char *_res_opcodes[] = {
+        "QUERY",
+        "IQUERY",
+        "CQUERYM",
+        "CQUERYU",      /* experimental */
+        "NOTIFY",       /* experimental */
+        "5",
+        "6",
+        "7",
+        "8",
+        "UPDATEA",
+        "UPDATED",
+        "UPDATEDA",
+        "UPDATEM",
+        "UPDATEMA",
+        "ZONEINIT",
+        "ZONEREF",
+};
+
+const char *_res_resultcodes[] = {
+        "NOERROR",
+        "FORMERR",
+        "SERVFAIL",
+        "NXDOMAIN",
+        "NOTIMP",
+        "REFUSED",
+        "6",
+        "7",
+        "8",
+        "9",
+        "10",
+        "11",
+        "12",
+        "13",
+        "14",
+        "NOCHANGE",
+};
diff --git a/src/lib/libc/net/res_debug_syms.c b/src/lib/libc/net/res_debug_syms.c
new file mode 100644
index 0000000000..7e7d22c914
--- /dev/null
+++ b/src/lib/libc/net/res_debug_syms.c
@@ -0,0 +1,189 @@
+/*      $OpenBSD: res_debug_syms.c,v 1.1 2005/08/06 20:30:04 espie Exp $        */
+
+/*
+ * ++Copyright++ 1985, 1990, 1993
+ * -
+ * Copyright (c) 1985, 1990, 1993
+ *    The Regents of the University of California.  All rights reserved.
+ * 
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ * 
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ * -
+ * Portions Copyright (c) 1993 by Digital Equipment Corporation.
+ * 
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies, and that
+ * the name of Digital Equipment Corporation not be used in advertising or
+ * publicity pertaining to distribution of the document or software without
+ * specific, written prior permission.
+ * 
+ * THE SOFTWARE IS PROVIDED "AS IS" AND DIGITAL EQUIPMENT CORP. DISCLAIMS ALL
+ * WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS.   IN NO EVENT SHALL DIGITAL EQUIPMENT
+ * CORPORATION BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
+ * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
+ * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS
+ * ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
+ * SOFTWARE.
+ * -
+ * Portions Copyright (c) 1995 by International Business Machines, Inc.
+ *
+ * International Business Machines, Inc. (hereinafter called IBM) grants
+ * permission under its copyrights to use, copy, modify, and distribute this
+ * Software with or without fee, provided that the above copyright notice and
+ * all paragraphs of this notice appear in all copies, and that the name of IBM
+ * not be used in connection with the marketing of any product incorporating
+ * the Software or modifications thereof, without specific, written prior
+ * permission.
+ *
+ * To the extent it has a right to do so, IBM grants an immunity from suit
+ * under its patents, if any, for the use, sale or manufacture of products to
+ * the extent that such products are used for performing Domain Name System
+ * dynamic updates in TCP/IP networks by means of the Software.  No immunity is
+ * granted for any product per se or for any other function of any product.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", AND IBM DISCLAIMS ALL WARRANTIES,
+ * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+ * PARTICULAR PURPOSE.  IN NO EVENT SHALL IBM BE LIABLE FOR ANY SPECIAL,
+ * DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER ARISING
+ * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE, EVEN
+ * IF IBM IS APPRISED OF THE POSSIBILITY OF SUCH DAMAGES.
+ * --Copyright--
+ */
+
+
+#include <sys/types.h>
+#include <netinet/in.h>
+#include <arpa/nameser.h>
+
+#include <resolv.h>
+#include <stdio.h>
+
+/*
+ * Names of RR classes and qclasses.  Classes and qclasses are the same, except
+ * that C_ANY is a qclass but not a class.  (You can ask for records of class
+ * C_ANY, but you can't have any records of that class in the database.)
+ */
+const struct res_sym __p_class_syms[] = {
+        {C_IN,          "IN"},
+        {C_CHAOS,       "CHAOS"},
+        {C_HS,          "HS"},
+        {C_HS,          "HESIOD"},
+        {C_ANY,         "ANY"},
+        {C_IN,          (char *)0}
+};
+
+/*
+ * Names of RR types and qtypes.  Types and qtypes are the same, except
+ * that T_ANY is a qtype but not a type.  (You can ask for records of type
+ * T_ANY, but you can't have any records of that type in the database.)
+ */
+const struct res_sym __p_type_syms[] = {
+        {T_A,           "A",            "address"},
+        {T_NS,          "NS",           "name server"},
+        {T_MD,          "MD",           "mail destination (deprecated)"},
+        {T_MF,          "MF",           "mail forwarder (deprecated)"},
+        {T_CNAME,       "CNAME",        "canonical name"},
+        {T_SOA,         "SOA",          "start of authority"},
+        {T_MB,          "MB",           "mailbox"},
+        {T_MG,          "MG",           "mail group member"},
+        {T_MR,          "MR",           "mail rename"},
+        {T_NULL,        "NULL",         "null"},
+        {T_WKS,         "WKS",          "well-known service (deprecated)"},
+        {T_PTR,         "PTR",          "domain name pointer"},
+        {T_HINFO,       "HINFO",        "host information"},
+        {T_MINFO,       "MINFO",        "mailbox information"},
+        {T_MX,          "MX",           "mail exchanger"},
+        {T_TXT,         "TXT",          "text"},
+        {T_RP,          "RP",           "responsible person"},
+        {T_AFSDB,       "AFSDB",        "DCE or AFS server"},
+        {T_X25,         "X25",          "X25 address"},
+        {T_ISDN,        "ISDN",         "ISDN address"},
+        {T_RT,          "RT",           "router"},
+        {T_NSAP,        "NSAP",         "nsap address"},
+        {T_NSAP_PTR,    "NSAP_PTR",     "domain name pointer"},
+        {T_SIG,         "SIG",          "signature"},
+        {T_KEY,         "KEY",          "key"},
+        {T_PX,          "PX",           "mapping information"},
+        {T_GPOS,        "GPOS",         "geographical position (withdrawn)"},
+        {T_AAAA,        "AAAA",         "IPv6 address"},
+        {T_LOC,         "LOC",          "location"},
+        {T_NXT,         "NXT",          "next valid name (unimplemented)"},
+        {T_EID,         "EID",          "endpoint identifier (unimplemented)"},
+        {T_NIMLOC,      "NIMLOC",       "NIMROD locator (unimplemented)"},
+        {T_SRV,         "SRV",          "server selection"},
+        {T_ATMA,        "ATMA",         "ATM address (unimplemented)"},
+        {T_IXFR,        "IXFR",         "incremental zone transfer"},
+        {T_AXFR,        "AXFR",         "zone transfer"},
+        {T_MAILB,       "MAILB",        "mailbox-related data (deprecated)"},
+        {T_MAILA,       "MAILA",        "mail agent (deprecated)"},
+        {T_UINFO,       "UINFO",        "user information (nonstandard)"},
+        {T_UID,         "UID",          "user ID (nonstandard)"},
+        {T_GID,         "GID",          "group ID (nonstandard)"},
+        {T_NAPTR,       "NAPTR",        "URN Naming Authority"},
+#ifdef ALLOW_T_UNSPEC
+        {T_UNSPEC,      "UNSPEC",       "unspecified data (nonstandard)"},
+#endif /* ALLOW_T_UNSPEC */
+        {T_ANY,         "ANY",          "\"any\""},
+        {0,             NULL,           NULL}
+};
+
+const char *
+__sym_ntos(const struct res_sym *syms, int number, int *success)
+{
+        static char unname[20];
+
+        for (; syms->name != 0; syms++) {
+                if (number == syms->number) {
+                        if (success)
+                                *success = 1;
+                        return (syms->name);
+                }
+        }
+
+        snprintf(unname, sizeof unname, "%d", number);
+        if (success)
+                *success = 0;
+        return (unname);
+}
+
+/*
+ * Return a string for the type
+ */
+const char *
+__p_type(int type)
+{
+        return (__sym_ntos (__p_type_syms, type, (int *)0));
+}
+
+/*
+ * Return a mnemonic for class
+ */
+const char *
+__p_class(int class)
+{
+        return (__sym_ntos (__p_class_syms, class, (int *)0));
+}
+
diff --git a/src/lib/libc/net/res_random.c b/src/lib/libc/net/res_random.c
new file mode 100644
index 0000000000..e22771995a
--- /dev/null
+++ b/src/lib/libc/net/res_random.c
@@ -0,0 +1,275 @@
+/* $OpenBSD: res_random.c,v 1.20 2013/11/12 07:00:24 deraadt Exp $ */
+
+/*
+ * Copyright 1997 Niels Provos <provos@physnet.uni-hamburg.de>
+ * Copyright 2008 Damien Miller <djm@openbsd.org>
+ * All rights reserved.
+ *
+ * Theo de Raadt <deraadt@openbsd.org> came up with the idea of using
+ * such a mathematical system to generate more random (yet non-repeating)
+ * ids to solve the resolver/named problem.  But Niels designed the
+ * actual system based on the constraints.
+ *
+ * Later modified by Damien Miller to wrap the LCG output in a 15-bit
+ * permutation generator based on a Luby-Rackoff block cipher. This
+ * ensures the output is non-repeating and preserves the MSB twiddle
+ * trick, but makes it more resistant to LCG prediction.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+/* 
+ * seed = random 15bit
+ * n = prime, g0 = generator to n,
+ * j = random so that gcd(j,n-1) == 1
+ * g = g0^j mod n will be a generator again.
+ *
+ * X[0] = random seed.
+ * X[n] = a*X[n-1]+b mod m is a Linear Congruential Generator
+ * with a = 7^(even random) mod m, 
+ *      b = random with gcd(b,m) == 1
+ *      m = 31104 and a maximal period of m-1.
+ *
+ * The transaction id is determined by:
+ * id[n] = seed xor (g^X[n] mod n)
+ *
+ * Effectivly the id is restricted to the lower 15 bits, thus
+ * yielding two different cycles by toggling the msb on and off.
+ * This avoids reuse issues caused by reseeding.
+ *
+ * The output of this generator is then randomly permuted though a
+ * custom 15 bit Luby-Rackoff block cipher.
+ */
+
+#include <sys/types.h>
+#include <netinet/in.h>
+#include <sys/time.h>
+#include <resolv.h>
+
+#include <unistd.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "thread_private.h"
+
+#define RU_OUT          180     /* Time after wich will be reseeded */
+#define RU_MAX          30000   /* Uniq cycle, avoid blackjack prediction */
+#define RU_GEN          2       /* Starting generator */
+#define RU_N            32749   /* RU_N-1 = 2*2*3*2729 */
+#define RU_AGEN         7       /* determine ru_a as RU_AGEN^(2*rand) */
+#define RU_M            31104   /* RU_M = 2^7*3^5 - don't change */
+#define RU_ROUNDS       11      /* Number of rounds for permute (odd) */
+
+struct prf_ctx {
+        /* PRF lookup table for odd rounds (7 bits input to 8 bits output) */
+        u_char prf7[(RU_ROUNDS / 2) * (1 << 7)];
+
+        /* PRF lookup table for even rounds (8 bits input to 7 bits output) */
+        u_char prf8[((RU_ROUNDS + 1) / 2) * (1 << 8)];
+};
+
+#define PFAC_N 3
+const static u_int16_t pfacts[PFAC_N] = {
+        2, 
+        3,
+        2729
+};
+
+static u_int16_t ru_x;
+static u_int16_t ru_seed, ru_seed2;
+static u_int16_t ru_a, ru_b;
+static u_int16_t ru_g;
+static u_int16_t ru_counter = 0;
+static u_int16_t ru_msb = 0;
+static struct prf_ctx *ru_prf = NULL;
+static time_t ru_reseed;
+
+static u_int16_t pmod(u_int16_t, u_int16_t, u_int16_t);
+static void res_initid(void);
+
+/*
+ * Do a fast modular exponation, returned value will be in the range
+ * of 0 - (mod-1)
+ */
+static u_int16_t
+pmod(u_int16_t gen, u_int16_t exp, u_int16_t mod)
+{
+        u_int16_t s, t, u;
+
+        s = 1;
+        t = gen;
+        u = exp;
+
+        while (u) {
+                if (u & 1)
+                        s = (s * t) % mod;
+                u >>= 1;
+                t = (t * t) % mod;
+        }
+        return (s);
+}
+
+/*
+ * 15-bit permutation based on Luby-Rackoff block cipher
+ */
+static u_int
+permute15(u_int in)
+{
+        int i;
+        u_int left, right, tmp;
+
+        if (ru_prf == NULL)
+                return in;
+
+        left = (in >> 8) & 0x7f;
+        right = in & 0xff;
+
+        /*
+         * Each round swaps the width of left and right. Even rounds have
+         * a 7-bit left, odd rounds have an 8-bit left. Since this uses an
+         * odd number of rounds, left is always 8 bits wide at the end.
+         */
+        for (i = 0; i < RU_ROUNDS; i++) {
+                if ((i & 1) == 0)
+                        tmp = ru_prf->prf8[(i << (8 - 1)) | right] & 0x7f;
+                else
+                        tmp = ru_prf->prf7[((i - 1) << (7 - 1)) | right];
+                tmp ^= left;
+                left = right;
+                right = tmp;
+        }
+
+        return (right << 8) | left;
+}
+
+/* 
+ * Initializes the seed and chooses a suitable generator. Also toggles 
+ * the msb flag. The msb flag is used to generate two distinct
+ * cycles of random numbers and thus avoiding reuse of ids.
+ *
+ * This function is called from res_randomid() when needed, an 
+ * application does not have to worry about it.
+ */
+static void 
+res_initid(void)
+{
+        u_int16_t j, i;
+        u_int32_t tmp;
+        int noprime = 1;
+        struct timespec ts;
+
+        ru_x = arc4random_uniform(RU_M);
+
+        /* 15 bits of random seed */
+        tmp = arc4random();
+        ru_seed = (tmp >> 16) & 0x7FFF;
+        ru_seed2 = tmp & 0x7FFF;
+
+        /* Determine the LCG we use */
+        tmp = arc4random();
+        ru_b = (tmp & 0xfffe) | 1;
+        ru_a = pmod(RU_AGEN, (tmp >> 16) & 0xfffe, RU_M);
+        while (ru_b % 3 == 0)
+                ru_b += 2;
+        
+        j = arc4random_uniform(RU_N);
+
+        /* 
+         * Do a fast gcd(j,RU_N-1), so we can find a j with
+         * gcd(j, RU_N-1) == 1, giving a new generator for
+         * RU_GEN^j mod RU_N
+         */
+
+        while (noprime) {
+                for (i = 0; i < PFAC_N; i++)
+                        if (j % pfacts[i] == 0)
+                                break;
+
+                if (i >= PFAC_N)
+                        noprime = 0;
+                else 
+                        j = (j + 1) % RU_N;
+        }
+
+        ru_g = pmod(RU_GEN, j, RU_N);
+        ru_counter = 0;
+
+        /* Initialise PRF for Luby-Rackoff permutation */
+        if (ru_prf == NULL)
+                ru_prf = malloc(sizeof(*ru_prf));
+        if (ru_prf != NULL)
+                arc4random_buf(ru_prf, sizeof(*ru_prf));
+
+        clock_gettime(CLOCK_MONOTONIC, &ts);
+        ru_reseed = ts.tv_sec + RU_OUT;
+        ru_msb = ru_msb == 0x8000 ? 0 : 0x8000; 
+}
+
+u_int
+res_randomid(void)
+{
+        struct timespec ts;
+        u_int r;
+        _THREAD_PRIVATE_MUTEX(random);
+
+        clock_gettime(CLOCK_MONOTONIC, &ts);
+
+        _THREAD_PRIVATE_MUTEX_LOCK(random);
+
+        if (ru_counter >= RU_MAX || ts.tv_sec > ru_reseed)
+                res_initid();
+
+        /* Linear Congruential Generator */
+        ru_x = (ru_a * ru_x + ru_b) % RU_M;
+        ru_counter++;
+
+        r = permute15(ru_seed ^ pmod(ru_g, ru_seed2 + ru_x, RU_N)) | ru_msb;
+
+        _THREAD_PRIVATE_MUTEX_UNLOCK(random);
+
+        return (r);
+}
+
+#if 0
+int
+main(int argc, char **argv)
+{
+        int i, n;
+        u_int16_t wert;
+
+        res_initid();
+
+        printf("Generator: %u\n", ru_g);
+        printf("Seed: %u\n", ru_seed);
+        printf("Reseed at %ld\n", ru_reseed);
+        printf("Ru_X: %u\n", ru_x);
+        printf("Ru_A: %u\n", ru_a);
+        printf("Ru_B: %u\n", ru_b);
+
+        n = argc > 1 ? atoi(argv[1]) : 60001;
+        for (i=0;i<n;i++) {
+                wert = res_randomid();
+                printf("%u\n", wert);
+        }
+        return 0;
+}
+#endif
+
diff --git a/src/lib/libc/net/resolver.3 b/src/lib/libc/net/resolver.3
new file mode 100644
index 0000000000..93b365a619
--- /dev/null
+++ b/src/lib/libc/net/resolver.3
@@ -0,0 +1,398 @@
+.\"     $OpenBSD: resolver.3,v 1.29 2014/01/21 03:15:45 schwarze Exp $
+.\"
+.\" Copyright (c) 1985, 1991, 1993
+.\"     The Regents of the University of California.  All rights reserved.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\" 3. Neither the name of the University nor the names of its contributors
+.\"    may be used to endorse or promote products derived from this software
+.\"    without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.Dd $Mdocdate: January 21 2014 $
+.Dt RESOLVER 3
+.Os
+.Sh NAME
+.Nm res_query ,
+.Nm res_search ,
+.Nm res_mkquery ,
+.Nm res_send ,
+.Nm res_init ,
+.Nm dn_comp ,
+.Nm dn_expand
+.Nd resolver routines
+.Sh SYNOPSIS
+.In sys/types.h
+.In netinet/in.h
+.In arpa/nameser.h
+.In resolv.h
+.Ft int
+.Fo res_query
+.Fa "const char *dname"
+.Fa "int class"
+.Fa "int type"
+.Fa "unsigned char *answer"
+.Fa "int anslen"
+.Fc
+.Ft int
+.Fo res_search
+.Fa "const char *dname"
+.Fa "int class"
+.Fa "int type"
+.Fa "unsigned char *answer"
+.Fa "int anslen"
+.Fc
+.Ft int
+.Fo res_mkquery
+.Fa "int op"
+.Fa "const char *dname"
+.Fa "int class"
+.Fa "int type"
+.Fa "const unsigned char *data"
+.Fa "int datalen"
+.Fa "const unsigned char *newrr"
+.Fa "unsigned char *buf"
+.Fa "int buflen"
+.Fc
+.Ft int
+.Fo res_send
+.Fa "const unsigned char *msg"
+.Fa "int msglen"
+.Fa "unsigned char *answer"
+.Fa "int anslen"
+.Fc
+.Ft int
+.Fn res_init "void"
+.Ft int
+.Fo dn_comp
+.Fa "const char *exp_dn"
+.Fa "unsigned char *comp_dn"
+.Fa "int length"
+.Fa "unsigned char **dnptrs"
+.Fa "unsigned char **lastdnptr"
+.Fc
+.Ft int
+.Fo dn_expand
+.Fa "const unsigned char *msg"
+.Fa "const unsigned char *eomorig"
+.Fa "const unsigned char *comp_dn"
+.Fa "char *exp_dn"
+.Fa "int length"
+.Fc
+.Sh DESCRIPTION
+These routines are used for making, sending, and interpreting
+query and reply messages with Internet domain name servers.
+.Pp
+Global configuration and state information that is used by the
+resolver routines is kept in the structure
+.Li _res .
+Most of the values have reasonable defaults and can be ignored.
+Options stored in
+.Li _res.options
+are defined in
+.In resolv.h
+and are as follows.
+Options are stored as a simple bit mask containing the bitwise OR
+of the options enabled.
+.Bl -tag -width RES_USE_DNSSEC
+.It Dv RES_INIT
+True if the initial name server address and default domain name are
+initialized (i.e.\&
+.Fn res_init
+has been called).
+.It Dv RES_DEBUG
+Print debugging messages,
+if libc is compiled with
+.Dv DEBUG .
+By default on
+.Ox
+this option does nothing.
+.It Dv RES_AAONLY
+Accept authoritative answers only.
+With this option,
+.Fn res_send
+should continue until it finds an authoritative answer or finds an error.
+Currently this is not implemented.
+.It Dv RES_USEVC
+Use TCP connections for queries instead of UDP datagrams.
+.It Dv RES_PRIMARY
+Query the primary name server only.
+Currently this is not implemented.
+.It Dv RES_IGNTC
+Ignore truncation errors, i.e. don't retry with TCP.
+.It Dv RES_RECURSE
+Set the recursion-desired bit in queries.
+.Pf ( Fn res_send
+does not do iterative queries and expects the name server
+to handle recursion.)
+This option is enabled by default.
+.It Dv RES_DEFNAMES
+If set,
+.Fn res_search
+will append the default domain name to single-component names
+(those that do not contain a dot).
+This option is enabled by default.
+.It Dv RES_STAYOPEN
+Used with
+.Dv RES_USEVC
+to keep the TCP connection open between queries.
+This is useful only in programs that regularly do many queries.
+UDP should be the normal mode used.
+.It Dv RES_DNSRCH
+If this option is set,
+.Fn res_search
+will search for host names in the current domain and in parent domains; see
+.Xr hostname 7 .
+This is used by the standard host lookup routine
+.Xr gethostbyname 3 .
+This option is enabled by default.
+.It Dv RES_INSECURE_1
+Do not require the IP source address on the reply packet
+to be equal to the server's address.
+.It Dv RES_INSECURE_2
+Do not check if the query section of the reply packet
+is equal to that of the query packet.
+.It Dv RES_NOALIASES
+Turn off the
+.Ev HOSTALIASES
+feature.
+See
+.Xr hostname 7
+for more information.
+.It Dv RES_USE_INET6
+Enables support for IPv6-only applications.
+This causes IPv4 addresses to be returned as an IPv4 mapped address.
+For example, 10.1.1.1 will be returned as ::ffff:10.1.1.1.
+The option is not meaningful on
+.Ox .
+.It Dv RES_USE_EDNS0
+Attach an OPT pseudo-RR for the EDNS0 extension,
+as specified in RFC 2671.
+This informs DNS servers of a client's receive buffer size,
+allowing them to take advantage of a non-default receive buffer size,
+and thus to send larger replies.
+DNS query packets with the EDNS0 extension are not compatible with
+non-EDNS0 DNS servers.
+.It Dv RES_USE_DNSSEC
+Request that the resolver uses
+Domain Name System Security Extensions (DNSSEC),
+as defined in RFCs 4033, 4034, and 4035.
+.El
+.Pp
+The
+.Fn res_init
+routine reads the configuration file (if any; see
+.Xr resolv.conf 5 )
+to get the default domain name, search list, and the Internet address
+of the local name server(s).
+If no server is configured, the host running
+the resolver is tried.
+The current domain name is defined by the hostname
+if not specified in the configuration file;
+it can be overridden by the environment variable
+.Ev LOCALDOMAIN .
+This environment variable may contain several blank-separated
+tokens if you wish to override the
+.Fa search list
+on a per-process basis.
+This is similar to the
+.Fa search
+command in the configuration file.
+Another environment variable
+.Ev RES_OPTIONS
+can be set to override certain internal resolver options which
+are otherwise set by changing fields in the
+.Fa _res
+structure or are inherited from the configuration file's
+.Fa options
+command.
+The syntax of the
+.Ev RES_OPTIONS
+environment variable is explained in
+.Xr resolv.conf 5 .
+Initialization normally occurs on the first call
+to one of the following routines.
+.Pp
+The
+.Fn res_query
+function provides an interface to the server query mechanism.
+It constructs a query, sends it to the local server,
+awaits a response, and makes preliminary checks on the reply.
+The query requests information of the specified
+.Fa type
+and
+.Fa class
+for the specified fully qualified domain name
+.Fa dname .
+The reply message is left in the
+.Fa answer
+buffer with length
+.Fa anslen
+supplied by the caller.
+Values for the
+.Fa class
+and
+.Fa type
+fields
+are defined in
+.In arpa/nameser.h .
+.Pp
+The
+.Fn res_search
+routine makes a query and awaits a response like
+.Fn res_query ,
+but in addition, it implements the default and search rules controlled by the
+.Dv RES_DEFNAMES
+and
+.Dv RES_DNSRCH
+options.
+It returns the first successful reply.
+.Pp
+The remaining routines are lower-level routines used by
+.Fn res_query .
+The
+.Fn res_mkquery
+function constructs a standard query message and places it in
+.Fa buf .
+It returns the size of the query, or \-1 if the query is larger than
+.Fa buflen .
+The query type
+.Fa op
+is usually
+.Dv QUERY ,
+but can be any of the query types defined in
+.In arpa/nameser.h .
+The domain name for the query is given by
+.Fa dname .
+.Fa newrr
+is currently unused but is intended for making update messages.
+.Pp
+The
+.Fn res_send
+routine sends a pre-formatted query and returns an answer.
+It will call
+.Fn res_init
+if
+.Dv RES_INIT
+is not set, send the query to the local name server, and
+handle timeouts and retries.
+The length of the reply message is returned, or \-1 if there were errors.
+.Pp
+The
+.Fn dn_comp
+function compresses the domain name
+.Fa exp_dn
+and stores it in
+.Fa comp_dn .
+The size of the compressed name is returned or \-1 if there were errors.
+The size of the array pointed to by
+.Fa comp_dn
+is given by
+.Fa length .
+The compression uses an array of pointers
+.Fa dnptrs
+to previously compressed names in the current message.
+The first pointer points
+to the beginning of the message and the list ends with
+.Dv NULL .
+The limit to the array is specified by
+.Fa lastdnptr .
+A side effect of
+.Fn dn_comp
+is to update the list of pointers for labels inserted into the message
+as the name is compressed.
+If
+.Fa dnptrs
+is
+.Dv NULL ,
+names are not compressed.
+If
+.Fa lastdnptr
+is
+.Dv NULL ,
+the list of labels is not updated.
+.Pp
+The
+.Fn dn_expand
+entry expands the compressed domain name
+.Fa comp_dn
+to a full domain name.
+The compressed name is contained in a query or reply message;
+.Fa msg
+is a pointer to the beginning of the message.
+The uncompressed name is placed in the buffer indicated by
+.Fa exp_dn
+which is of size
+.Fa length .
+The size of compressed name is returned or \-1 if there was an error.
+.Sh FILES
+.Bl -tag -width "/etc/resolv.confXX"
+.It Pa /etc/resolv.conf
+The configuration file.
+.El
+.Sh SEE ALSO
+.Xr gethostbyname 3 ,
+.Xr resolv.conf 5 ,
+.Xr hostname 7 ,
+.Xr named 8
+.Rs
+.%T Name Server Operations Guide for BIND
+.Re
+.Sh STANDARDS
+.Rs
+.%A M. Stahl
+.%D November 1987
+.%R RFC 1032
+.%T Domain Administrators Guide
+.Re
+.Pp
+.Rs
+.%A M. Lottor
+.%D November 1987
+.%R RFC 1033
+.%T Domain Administrators Operations Guide
+.Re
+.Pp
+.Rs
+.%A P. Mockapetris
+.%D November 1987
+.%R RFC 1034
+.%T Domain Names \(en Concepts and Facilities
+.Re
+.Pp
+.Rs
+.%A P. Mockapetris
+.%D November 1987
+.%R RFC 1035
+.%T Domain Names \(en Implementation and Specification
+.Re
+.Pp
+.Rs
+.%A J. Klensin
+.%D October 2008
+.%R RFC 5321
+.%T Simple Mail Transfer Protocol
+.Re
+.Sh HISTORY
+The
+.Nm
+function appeared in
+.Bx 4.3 .
diff --git a/src/lib/libc/net/rresvport.c b/src/lib/libc/net/rresvport.c
new file mode 100644
index 0000000000..ccc411500b
--- /dev/null
+++ b/src/lib/libc/net/rresvport.c
@@ -0,0 +1,107 @@
+/* $OpenBSD: rresvport.c,v 1.9 2005/11/10 10:00:17 espie Exp $ */
+/*
+ * Copyright (c) 1995, 1996, 1998 Theo de Raadt.  All rights reserved.
+ * Copyright (c) 1983, 1993, 1994
+ *      The Regents of the University of California.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <sys/param.h>
+#include <sys/socket.h>
+#include <sys/stat.h>
+
+#include <netinet/in.h>
+#include <arpa/inet.h>
+
+#include <signal.h>
+#include <fcntl.h>
+#include <netdb.h>
+#include <unistd.h>
+#include <pwd.h>
+#include <errno.h>
+#include <stdio.h>
+#include <ctype.h>
+#include <string.h>
+#include <syslog.h>
+#include <stdlib.h>
+#include <netgroup.h>
+
+int
+rresvport(int *alport)
+{
+        return rresvport_af(alport, AF_INET);
+}
+
+
+int
+rresvport_af(int *alport, int af)
+{
+        struct sockaddr_storage ss;
+        struct sockaddr *sa;
+        u_int16_t *portp;
+        int s;
+
+        bzero(&ss, sizeof ss);
+        sa = (struct sockaddr *)&ss;
+
+        switch (af) {
+        case AF_INET:
+                sa->sa_len = sizeof(struct sockaddr_in);
+                portp = &((struct sockaddr_in *)sa)->sin_port;
+                break;
+        case AF_INET6:
+                sa->sa_len = sizeof(struct sockaddr_in6);
+                portp = &((struct sockaddr_in6 *)sa)->sin6_port;
+                break;
+        default:
+                errno = EPFNOSUPPORT;
+                return (-1);
+        }
+        sa->sa_family = af;
+        
+        s = socket(af, SOCK_STREAM, 0);
+        if (s < 0)
+                return (-1);
+
+        *portp = htons(*alport);
+        if (*alport < IPPORT_RESERVED - 1) {
+                if (bind(s, sa, sa->sa_len) >= 0)
+                        return (s);
+                if (errno != EADDRINUSE) {
+                        (void)close(s);
+                        return (-1);
+                }
+        }
+
+        *portp = 0;
+        sa->sa_family = af;
+        if (bindresvport_sa(s, sa) == -1) {
+                (void)close(s);
+                return (-1);
+        }
+        *alport = ntohs(*portp);
+        return (s);
+}
diff --git a/src/lib/libc/net/rthdr.c b/src/lib/libc/net/rthdr.c
new file mode 100644
index 0000000000..d10334e027
--- /dev/null
+++ b/src/lib/libc/net/rthdr.c
@@ -0,0 +1,378 @@
+/*      $OpenBSD: rthdr.c,v 1.8 2006/12/09 01:12:28 itojun Exp $        */
+/*      $KAME: rthdr.c,v 1.22 2006/02/09 08:18:58 keiichi Exp $ */
+
+/*
+ * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
+ * All rights reserved.
+ * 
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the project nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ * 
+ * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <sys/param.h>
+#include <sys/types.h>
+#include <sys/socket.h>
+
+#include <netinet/in.h>
+#include <netinet/ip6.h>
+
+#include <string.h>
+#include <stdio.h>
+
+/*
+ * RFC2292 API
+ */
+
+size_t
+inet6_rthdr_space(int type, int seg)
+{
+        switch (type) {
+        case IPV6_RTHDR_TYPE_0:
+                if (seg < 1 || seg > 23)
+                        return (0);
+                return (CMSG_SPACE(sizeof(struct in6_addr) * seg +
+                    sizeof(struct ip6_rthdr0)));
+        default:
+                return (0);
+        }
+}
+
+struct cmsghdr *
+inet6_rthdr_init(void *bp, int type)
+{
+        struct cmsghdr *ch = (struct cmsghdr *)bp;
+        struct ip6_rthdr *rthdr;
+
+        rthdr = (struct ip6_rthdr *)CMSG_DATA(ch);
+
+        ch->cmsg_level = IPPROTO_IPV6;
+        ch->cmsg_type = IPV6_RTHDR;
+
+        switch (type) {
+        case IPV6_RTHDR_TYPE_0:
+                ch->cmsg_len = CMSG_LEN(sizeof(struct ip6_rthdr0));
+                bzero(rthdr, sizeof(struct ip6_rthdr0));
+                rthdr->ip6r_type = IPV6_RTHDR_TYPE_0;
+                return (ch);
+        default:
+                return (NULL);
+        }
+}
+
+int
+inet6_rthdr_add(struct cmsghdr *cmsg, const struct in6_addr *addr, u_int flags)
+{
+        struct ip6_rthdr *rthdr;
+
+        rthdr = (struct ip6_rthdr *)CMSG_DATA(cmsg);
+
+        switch (rthdr->ip6r_type) {
+        case IPV6_RTHDR_TYPE_0:
+        {
+                struct ip6_rthdr0 *rt0 = (struct ip6_rthdr0 *)rthdr;
+                if (flags != IPV6_RTHDR_LOOSE)
+                        return (-1);
+                if (rt0->ip6r0_segleft == 23)
+                        return (-1);
+                rt0->ip6r0_segleft++;
+                bcopy(addr, (caddr_t)rt0 + ((rt0->ip6r0_len + 1) << 3),
+                    sizeof(struct in6_addr));
+                rt0->ip6r0_len += sizeof(struct in6_addr) >> 3;
+                cmsg->cmsg_len = CMSG_LEN((rt0->ip6r0_len + 1) << 3);
+                break;
+        }
+        default:
+                return (-1);
+        }
+
+        return (0);
+}
+
+int
+inet6_rthdr_lasthop(struct cmsghdr *cmsg, unsigned int flags)
+{
+        struct ip6_rthdr *rthdr;
+
+        rthdr = (struct ip6_rthdr *)CMSG_DATA(cmsg);
+
+        switch (rthdr->ip6r_type) {
+        case IPV6_RTHDR_TYPE_0:
+        {
+                struct ip6_rthdr0 *rt0 = (struct ip6_rthdr0 *)rthdr;
+                if (flags != IPV6_RTHDR_LOOSE)
+                        return (-1);
+                if (rt0->ip6r0_segleft > 23)
+                        return (-1);
+                break;
+        }
+        default:
+                return (-1);
+        }
+
+        return (0);
+}
+
+#if 0
+int
+inet6_rthdr_reverse(in, out)
+        const struct cmsghdr *in;
+        struct cmsghdr *out;
+{
+
+        return (-1);
+}
+#endif
+
+int
+inet6_rthdr_segments(const struct cmsghdr *cmsg)
+{
+        struct ip6_rthdr *rthdr;
+
+        rthdr = (struct ip6_rthdr *)CMSG_DATA(cmsg);
+
+        switch (rthdr->ip6r_type) {
+        case IPV6_RTHDR_TYPE_0:
+        {
+                struct ip6_rthdr0 *rt0 = (struct ip6_rthdr0 *)rthdr;
+
+                if (rt0->ip6r0_len % 2 || 46 < rt0->ip6r0_len)
+                        return (-1);
+
+                return (rt0->ip6r0_len * 8) / sizeof(struct in6_addr);
+        }
+
+        default:
+                return (-1);
+        }
+}
+
+struct in6_addr *
+inet6_rthdr_getaddr(struct cmsghdr *cmsg, int index)
+{
+        struct ip6_rthdr *rthdr;
+
+        rthdr = (struct ip6_rthdr *)CMSG_DATA(cmsg);
+
+        switch (rthdr->ip6r_type) {
+        case IPV6_RTHDR_TYPE_0:
+        {
+                struct ip6_rthdr0 *rt0 = (struct ip6_rthdr0 *)rthdr;
+                int naddr;
+
+                if (rt0->ip6r0_len % 2 || 46 < rt0->ip6r0_len)
+                        return NULL;
+                naddr = (rt0->ip6r0_len * 8) / sizeof(struct in6_addr);
+                if (index <= 0 || naddr < index)
+                        return NULL;
+                return ((struct in6_addr *)(rt0 + 1)) + index;
+        }
+
+        default:
+                return NULL;
+        }
+}
+
+int
+inet6_rthdr_getflags(const struct cmsghdr *cmsg, int index)
+{
+        struct ip6_rthdr *rthdr;
+
+        rthdr = (struct ip6_rthdr *)CMSG_DATA(cmsg);
+
+        switch (rthdr->ip6r_type) {
+        case IPV6_RTHDR_TYPE_0:
+        {
+                struct ip6_rthdr0 *rt0 = (struct ip6_rthdr0 *)rthdr;
+                int naddr;
+
+                if (rt0->ip6r0_len % 2 || 46 < rt0->ip6r0_len)
+                        return (-1);
+                naddr = (rt0->ip6r0_len * 8) / sizeof(struct in6_addr);
+                if (index < 0 || naddr < index)
+                        return (-1);
+                return IPV6_RTHDR_LOOSE;
+        }
+
+        default:
+                return (-1);
+        }
+}
+
+/*
+ * RFC3542 (2292bis) API
+ */
+
+socklen_t
+inet6_rth_space(int type, int segments)
+{
+        switch (type) {
+        case IPV6_RTHDR_TYPE_0:
+                return (((segments * 2) + 1) << 3);
+        default:
+                return (0);     /* type not suppported */
+        }
+}
+
+void *
+inet6_rth_init(void *bp, socklen_t bp_len, int type, int segments)
+{
+        struct ip6_rthdr *rth = (struct ip6_rthdr *)bp;
+        struct ip6_rthdr0 *rth0;
+
+        switch (type) {
+        case IPV6_RTHDR_TYPE_0:
+                /* length validation */
+                if (bp_len < inet6_rth_space(IPV6_RTHDR_TYPE_0, segments))
+                        return (NULL);
+
+                memset(bp, 0, bp_len);
+                rth0 = (struct ip6_rthdr0 *)rth;
+                rth0->ip6r0_len = segments * 2;
+                rth0->ip6r0_type = IPV6_RTHDR_TYPE_0;
+                rth0->ip6r0_segleft = 0;
+                rth0->ip6r0_reserved = 0;
+                break;
+        default:
+                return (NULL);  /* type not supported */
+        }
+
+        return (bp);
+}
+
+int
+inet6_rth_add(void *bp, const struct in6_addr *addr)
+{
+        struct ip6_rthdr *rth = (struct ip6_rthdr *)bp;
+        struct ip6_rthdr0 *rth0;
+        struct in6_addr *nextaddr;
+
+        switch (rth->ip6r_type) {
+        case IPV6_RTHDR_TYPE_0:
+                rth0 = (struct ip6_rthdr0 *)rth;
+                nextaddr = (struct in6_addr *)(rth0 + 1) + rth0->ip6r0_segleft;
+                *nextaddr = *addr;
+                rth0->ip6r0_segleft++;
+                break;
+        default:
+                return (-1);    /* type not supported */
+        }
+
+        return (0);
+}
+
+int
+inet6_rth_reverse(const void *in, void *out)
+{
+        struct ip6_rthdr *rth_in = (struct ip6_rthdr *)in;
+        struct ip6_rthdr0 *rth0_in, *rth0_out;
+        int i, segments;
+
+        switch (rth_in->ip6r_type) {
+        case IPV6_RTHDR_TYPE_0:
+                rth0_in = (struct ip6_rthdr0 *)in;
+                rth0_out = (struct ip6_rthdr0 *)out;
+
+                /* parameter validation XXX too paranoid? */
+                if (rth0_in->ip6r0_len % 2)
+                        return (-1);
+                segments = rth0_in->ip6r0_len / 2;
+
+                /* we can't use memcpy here, since in and out may overlap */
+                memmove((void *)rth0_out, (void *)rth0_in,
+                        ((rth0_in->ip6r0_len) + 1) << 3);
+                rth0_out->ip6r0_segleft = segments;
+
+                /* reverse the addresses */
+                for (i = 0; i < segments / 2; i++) {
+                        struct in6_addr addr_tmp, *addr1, *addr2;
+
+                        addr1 = (struct in6_addr *)(rth0_out + 1) + i;
+                        addr2 = (struct in6_addr *)(rth0_out + 1) +
+                            (segments - i - 1);
+                        addr_tmp = *addr1;
+                        *addr1 = *addr2;
+                        *addr2 = addr_tmp;
+                }
+                
+                break;
+        default:
+                return (-1);    /* type not supported */
+        }
+
+        return (0);
+}
+
+int
+inet6_rth_segments(const void *bp)
+{
+        struct ip6_rthdr *rh = (struct ip6_rthdr *)bp;
+        struct ip6_rthdr0 *rh0;
+        int addrs;
+
+        switch (rh->ip6r_type) {
+        case IPV6_RTHDR_TYPE_0:
+                rh0 = (struct ip6_rthdr0 *)bp;
+
+                /*
+                 * Validation for a type-0 routing header.
+                 * Is this too strict?
+                 */
+                if ((rh0->ip6r0_len % 2) != 0 ||
+                    (addrs = (rh0->ip6r0_len >> 1)) < rh0->ip6r0_segleft)
+                        return (-1);
+
+                return (addrs);
+        default:
+                return (-1);    /* unknown type */
+        }
+}
+
+struct in6_addr *
+inet6_rth_getaddr(const void *bp, int idx)
+{
+        struct ip6_rthdr *rh = (struct ip6_rthdr *)bp;
+        struct ip6_rthdr0 *rh0;
+        int addrs;
+
+        switch (rh->ip6r_type) {
+        case IPV6_RTHDR_TYPE_0:
+                 rh0 = (struct ip6_rthdr0 *)bp;
+                 
+                /*
+                 * Validation for a type-0 routing header.
+                 * Is this too strict?
+                 */
+                if ((rh0->ip6r0_len % 2) != 0 ||
+                    (addrs = (rh0->ip6r0_len >> 1)) < rh0->ip6r0_segleft)
+                        return (NULL);
+
+                if (idx < 0 || addrs <= idx)
+                        return (NULL);
+
+                return (((struct in6_addr *)(rh0 + 1)) + idx);
+        default:
+                return (NULL);  /* unknown type */
+                break;
+        }
+}
diff --git a/src/lib/libc/net/ruserok.c b/src/lib/libc/net/ruserok.c
new file mode 100644
index 0000000000..21646c156b
--- /dev/null
+++ b/src/lib/libc/net/ruserok.c
@@ -0,0 +1,438 @@
+/*
+ * Copyright (c) 1995, 1996, 1998 Theo de Raadt.  All rights reserved.
+ * Copyright (c) 1983, 1993, 1994
+ *      The Regents of the University of California.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <sys/socket.h>
+#include <sys/stat.h>
+
+#include <netinet/in.h>
+#include <arpa/inet.h>
+
+#include <ctype.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <limits.h>
+#include <netdb.h>
+#include <netgroup.h>
+#include <pwd.h>
+#include <signal.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <syslog.h>
+#include <unistd.h>
+
+int     __ivaliduser(FILE *, in_addr_t, const char *, const char *);
+int     __ivaliduser_sa(FILE *, struct sockaddr *, socklen_t,
+            const char *, const char *);
+static int __icheckhost(struct sockaddr *, socklen_t, const char *);
+static char *__gethostloop(struct sockaddr *, socklen_t);
+
+int     __check_rhosts_file = 1;
+char    *__rcmd_errstr;
+
+int
+ruserok(const char *rhost, int superuser, const char *ruser, const char *luser)
+{
+        struct addrinfo hints, *res, *r;
+        int error;
+
+        memset(&hints, 0, sizeof(hints));
+        hints.ai_family = PF_UNSPEC;
+        hints.ai_socktype = SOCK_DGRAM; /*dummy*/
+        error = getaddrinfo(rhost, "0", &hints, &res);
+        if (error)
+                return (-1);
+
+        for (r = res; r; r = r->ai_next) {
+                if (iruserok_sa(r->ai_addr, r->ai_addrlen, superuser, ruser,
+                    luser) == 0) {
+                        freeaddrinfo(res);
+                        return (0);
+                }
+        }
+        freeaddrinfo(res);
+        return (-1);
+}
+
+/*
+ * New .rhosts strategy: We are passed an ip address. We spin through
+ * hosts.equiv and .rhosts looking for a match. When the .rhosts only
+ * has ip addresses, we don't have to trust a nameserver.  When it
+ * contains hostnames, we spin through the list of addresses the nameserver
+ * gives us and look for a match.
+ *
+ * Returns 0 if ok, -1 if not ok.
+ */
+int
+iruserok(u_int32_t raddr, int superuser, const char *ruser, const char *luser)
+{
+        struct sockaddr_in sin;
+
+        memset(&sin, 0, sizeof(sin));
+        sin.sin_family = AF_INET;
+        sin.sin_len = sizeof(struct sockaddr_in);
+        memcpy(&sin.sin_addr, &raddr, sizeof(sin.sin_addr));
+        return iruserok_sa(&sin, sizeof(struct sockaddr_in), superuser, ruser,
+                    luser);
+}
+
+int
+iruserok_sa(const void *raddr, int rlen, int superuser, const char *ruser,
+    const char *luser)
+{
+        struct sockaddr *sa;
+        char *cp;
+        struct stat sbuf;
+        struct passwd *pwd;
+        FILE *hostf;
+        uid_t uid;
+        int first;
+        char pbuf[PATH_MAX];
+
+        sa = (struct sockaddr *)raddr;
+        first = 1;
+        hostf = superuser ? NULL : fopen(_PATH_HEQUIV, "r");
+again:
+        if (hostf) {
+                if (__ivaliduser_sa(hostf, sa, rlen, luser, ruser) == 0) {
+                        (void)fclose(hostf);
+                        return (0);
+                }
+                (void)fclose(hostf);
+        }
+        if (first == 1 && (__check_rhosts_file || superuser)) {
+                int len;
+
+                first = 0;
+                if ((pwd = getpwnam(luser)) == NULL)
+                        return (-1);
+                len = snprintf(pbuf, sizeof pbuf, "%s/.rhosts", pwd->pw_dir);
+                if (len < 0 || len >= sizeof pbuf)
+                        return (-1);
+
+                /*
+                 * Change effective uid while opening .rhosts.  If root and
+                 * reading an NFS mounted file system, can't read files that
+                 * are protected read/write owner only.
+                 */
+                uid = geteuid();
+                (void)seteuid(pwd->pw_uid);
+                hostf = fopen(pbuf, "r");
+                (void)seteuid(uid);
+
+                if (hostf == NULL)
+                        return (-1);
+                /*
+                 * If not a regular file, or is owned by someone other than
+                 * user or root or if writeable by anyone but the owner, quit.
+                 */
+                cp = NULL;
+                if (lstat(pbuf, &sbuf) < 0)
+                        cp = ".rhosts lstat failed";
+                else if (!S_ISREG(sbuf.st_mode))
+                        cp = ".rhosts not regular file";
+                else if (fstat(fileno(hostf), &sbuf) < 0)
+                        cp = ".rhosts fstat failed";
+                else if (sbuf.st_uid && sbuf.st_uid != pwd->pw_uid)
+                        cp = "bad .rhosts owner";
+                else if (sbuf.st_mode & (S_IWGRP|S_IWOTH))
+                        cp = ".rhosts writable by other than owner";
+                /* If there were any problems, quit. */
+                if (cp) {
+                        __rcmd_errstr = cp;
+                        (void)fclose(hostf);
+                        return (-1);
+                }
+                goto again;
+        }
+        return (-1);
+}
+
+/*
+ * XXX
+ * Don't make static, used by lpd(8).
+ *
+ * Returns 0 if ok, -1 if not ok.
+ */
+int
+__ivaliduser(FILE *hostf, in_addr_t raddrl, const char *luser,
+    const char *ruser)
+{
+        struct sockaddr_in sin;
+
+        memset(&sin, 0, sizeof(sin));
+        sin.sin_family = AF_INET;
+        sin.sin_len = sizeof(struct sockaddr_in);
+        memcpy(&sin.sin_addr, &raddrl, sizeof(sin.sin_addr));
+        return __ivaliduser_sa(hostf, (struct sockaddr *)&sin, sin.sin_len,
+                    luser, ruser);
+}
+
+int
+__ivaliduser_sa(FILE *hostf, struct sockaddr *raddr, socklen_t salen,
+    const char *luser, const char *ruser)
+{
+        char *user, *p;
+        char *buf;
+        const char *auser, *ahost;
+        int hostok, userok;
+        char *rhost = (char *)-1;
+        char domain[MAXHOSTNAMELEN];
+        size_t buflen;
+
+        getdomainname(domain, sizeof(domain));
+
+        while ((buf = fgetln(hostf, &buflen))) {
+                p = buf;
+                if (*p == '#')
+                        continue;
+                while (p < buf + buflen && *p != '\n' && *p != ' ' && *p != '\t') {
+                        if (!isprint((unsigned char)*p))
+                                goto bail;
+                        *p = isupper((unsigned char)*p) ?
+                            tolower((unsigned char)*p) : *p;
+                        p++;
+                }
+                if (p >= buf + buflen)
+                        continue;
+                if (*p == ' ' || *p == '\t') {
+                        *p++ = '\0';
+                        while (p < buf + buflen && (*p == ' ' || *p == '\t'))
+                                p++;
+                        if (p >= buf + buflen)
+                                continue;
+                        user = p;
+                        while (p < buf + buflen && *p != '\n' && *p != ' ' &&
+                            *p != '\t') {
+                                if (!isprint((unsigned char)*p))
+                                        goto bail;
+                                p++;
+                        }
+                } else
+                        user = p;
+                *p = '\0';
+
+                if (p == buf)
+                        continue;
+
+                auser = *user ? user : luser;
+                ahost = buf;
+
+                if (strlen(ahost) >= MAXHOSTNAMELEN)
+                        continue;
+
+                /*
+                 * innetgr() must lookup a hostname (we do not attempt
+                 * to change the semantics so that netgroups may have
+                 * #.#.#.# addresses in the list.)
+                 */
+                if (ahost[0] == '+')
+                        switch (ahost[1]) {
+                        case '\0':
+                                hostok = 1;
+                                break;
+                        case '@':
+                                if (rhost == (char *)-1)
+                                        rhost = __gethostloop(raddr, salen);
+                                hostok = 0;
+                                if (rhost)
+                                        hostok = innetgr(&ahost[2], rhost,
+                                            NULL, domain);
+                                break;
+                        default:
+                                hostok = __icheckhost(raddr, salen, &ahost[1]);
+                                break;
+                        }
+                else if (ahost[0] == '-')
+                        switch (ahost[1]) {
+                        case '\0':
+                                hostok = -1;
+                                break;
+                        case '@':
+                                if (rhost == (char *)-1)
+                                        rhost = __gethostloop(raddr, salen);
+                                hostok = 0;
+                                if (rhost)
+                                        hostok = -innetgr(&ahost[2], rhost,
+                                            NULL, domain);
+                                break;
+                        default:
+                                hostok = -__icheckhost(raddr, salen, &ahost[1]);
+                                break;
+                        }
+                else
+                        hostok = __icheckhost(raddr, salen, ahost);
+
+
+                if (auser[0] == '+')
+                        switch (auser[1]) {
+                        case '\0':
+                                userok = 1;
+                                break;
+                        case '@':
+                                userok = innetgr(&auser[2], NULL, ruser,
+                                    domain);
+                                break;
+                        default:
+                                userok = strcmp(ruser, &auser[1]) ? 0 : 1;
+                                break;
+                        }
+                else if (auser[0] == '-')
+                        switch (auser[1]) {
+                        case '\0':
+                                userok = -1;
+                                break;
+                        case '@':
+                                userok = -innetgr(&auser[2], NULL, ruser,
+                                    domain);
+                                break;
+                        default:
+                                userok = strcmp(ruser, &auser[1]) ? 0 : -1;
+                                break;
+                        }
+                else
+                        userok = strcmp(ruser, auser) ? 0 : 1;
+
+                /* Check if one component did not match */
+                if (hostok == 0 || userok == 0)
+                        continue;
+
+                /* Check if we got a forbidden pair */
+                if (userok <= -1 || hostok <= -1)
+                        return (-1);
+
+                /* Check if we got a valid pair */
+                if (hostok >= 1 && userok >= 1)
+                        return (0);
+        }
+bail:
+        return (-1);
+}
+
+/*
+ * Returns "true" if match, 0 if no match.  If we do not find any
+ * semblance of an A->PTR->A loop, allow a simple #.#.#.# match to work.
+ */
+static int
+__icheckhost(struct sockaddr *raddr, socklen_t salen, const char *lhost)
+{
+        struct addrinfo hints, *res, *r;
+        char h1[NI_MAXHOST], h2[NI_MAXHOST];
+        int error;
+        const int niflags = NI_NUMERICHOST;
+
+        h1[0] = '\0';
+        if (getnameinfo(raddr, salen, h1, sizeof(h1), NULL, 0,
+            niflags) != 0)
+                return (0);
+
+        /* Resolve laddr into sockaddr */
+        memset(&hints, 0, sizeof(hints));
+        hints.ai_family = raddr->sa_family;
+        hints.ai_socktype = SOCK_DGRAM; /*dummy*/
+        res = NULL;
+        error = getaddrinfo(lhost, "0", &hints, &res);
+        if (error)
+                return (0);
+
+        /*
+         * Try string comparisons between raddr and laddr.
+         */
+        for (r = res; r; r = r->ai_next) {
+                h2[0] = '\0';
+                if (getnameinfo(r->ai_addr, r->ai_addrlen, h2, sizeof(h2),
+                    NULL, 0, niflags) != 0)
+                        continue;
+                if (strcmp(h1, h2) == 0) {
+                        freeaddrinfo(res);
+                        return (1);
+                }
+        }
+
+        /* No match. */
+        freeaddrinfo(res);
+        return (0);
+}
+
+/*
+ * Return the hostname associated with the supplied address.
+ * Do a reverse lookup as well for security. If a loop cannot
+ * be found, pack the result of inet_ntoa() into the string.
+ */
+static char *
+__gethostloop(struct sockaddr *raddr, socklen_t salen)
+{
+        static char remotehost[NI_MAXHOST];
+        char h1[NI_MAXHOST], h2[NI_MAXHOST];
+        struct addrinfo hints, *res, *r;
+        int error;
+        const int niflags = NI_NUMERICHOST;
+
+        h1[0] = remotehost[0] = '\0';
+        if (getnameinfo(raddr, salen, remotehost, sizeof(remotehost),
+            NULL, 0, NI_NAMEREQD) != 0)
+                return (NULL);
+        if (getnameinfo(raddr, salen, h1, sizeof(h1), NULL, 0,
+            niflags) != 0)
+                return (NULL);
+
+        /*
+         * Look up the name and check that the supplied
+         * address is in the list
+         */
+        memset(&hints, 0, sizeof(hints));
+        hints.ai_family = raddr->sa_family;
+        hints.ai_socktype = SOCK_DGRAM; /*dummy*/
+        hints.ai_flags = AI_CANONNAME;
+        res = NULL;
+        error = getaddrinfo(remotehost, "0", &hints, &res);
+        if (error)
+                return (NULL);
+
+        for (r = res; r; r = r->ai_next) {
+                h2[0] = '\0';
+                if (getnameinfo(r->ai_addr, r->ai_addrlen, h2, sizeof(h2),
+                    NULL, 0, niflags) != 0)
+                        continue;
+                if (strcmp(h1, h2) == 0) {
+                        freeaddrinfo(res);
+                        return (remotehost);
+                }
+        }
+
+        /*
+         * either the DNS adminstrator has made a configuration
+         * mistake, or someone has attempted to spoof us
+         */
+        syslog(LOG_NOTICE, "rcmd: address %s not listed for host %s",
+            h1, res->ai_canonname ? res->ai_canonname : remotehost);
+        freeaddrinfo(res);
+        return (NULL);
+}
diff --git a/src/lib/libc/net/send.c b/src/lib/libc/net/send.c
new file mode 100644
index 0000000000..1bfc80b87a
--- /dev/null
+++ b/src/lib/libc/net/send.c
@@ -0,0 +1,40 @@
+/*      $OpenBSD: send.c,v 1.5 2005/08/06 20:30:04 espie Exp $ */
+/*
+ * Copyright (c) 1988, 1993
+ *      The Regents of the University of California.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <sys/types.h>
+#include <sys/socket.h>
+
+#include <stddef.h>
+
+ssize_t
+send(int s, const void *msg, size_t len, int flags)
+{
+        return (sendto(s, msg, len, flags, NULL, 0));
+}
diff --git a/src/lib/libc/net/vars6.c b/src/lib/libc/net/vars6.c
new file mode 100644
index 0000000000..a22d49d047
--- /dev/null
+++ b/src/lib/libc/net/vars6.c
@@ -0,0 +1,42 @@
+/*      $OpenBSD: vars6.c,v 1.2 2003/05/10 10:56:47 jmc Exp $   */
+
+/*
+ * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
+ * All rights reserved.
+ * 
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the project nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ * 
+ * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <sys/types.h>
+#include <netinet/in.h>
+
+/*
+ * Definitions of some constant IPv6 addresses.
+ */
+const struct in6_addr in6addr_any = IN6ADDR_ANY_INIT;
+const struct in6_addr in6addr_loopback = IN6ADDR_LOOPBACK_INIT;
+const struct in6_addr in6addr_nodelocal_allnodes = IN6ADDR_NODELOCAL_ALLNODES_INIT;
+const struct in6_addr in6addr_linklocal_allnodes = IN6ADDR_LINKLOCAL_ALLNODES_INIT;
+
diff --git a/src/lib/libc/stdlib/Makefile.inc b/src/lib/libc/stdlib/Makefile.inc
new file mode 100644
index 0000000000..953c53382f
--- /dev/null
+++ b/src/lib/libc/stdlib/Makefile.inc
@@ -0,0 +1,63 @@
+#       $OpenBSD: Makefile.inc,v 1.49 2014/03/18 22:36:29 miod Exp $
+
+# stdlib sources
+.PATH: ${LIBCSRCDIR}/arch/${MACHINE_CPU}/stdlib ${LIBCSRCDIR}/stdlib
+
+SRCS+=  a64l.c abort.c atexit.c atoi.c atof.c atol.c atoll.c bsearch.c \
+        cfree.c exit.c ecvt.c gcvt.c getenv.c getopt_long.c \
+        getsubopt.c hcreate.c heapsort.c imaxabs.c imaxdiv.c l64a.c llabs.c \
+        lldiv.c lsearch.c malloc.c merge.c posix_pty.c qsort.c radixsort.c \
+        rand.c random.c realpath.c setenv.c strtoimax.c strtol.c \
+        strtoll.c strtonum.c strtoul.c strtoull.c strtoumax.c system.c \
+        tfind.c tsearch.c _rand48.c drand48.c erand48.c jrand48.c lcong48.c \
+        lrand48.c mrand48.c nrand48.c seed48.c srand48.c qabs.c qdiv.c _Exit.c
+
+.if (${MACHINE_CPU} == "i386")
+SRCS+=  abs.S div.S labs.S ldiv.S
+.elif (${MACHINE_CPU} == "vax")
+SRCS+=  abs.c div.c labs.c ldiv.c
+.elif (${MACHINE_CPU} == "alpha")
+# XXX should be .S's
+SRCS+=  abs.c div.c labs.c ldiv.c
+.else
+SRCS+=  abs.c div.c labs.c ldiv.c
+.endif
+
+.if (${MACHINE_CPU} == "vax")
+SRCS+=  insque.S remque.S
+.else
+SRCS+=  insque.c remque.c
+.endif
+
+MAN+=   a64l.3 abort.3 abs.3 alloca.3 atexit.3 atof.3 atoi.3 atol.3 atoll.3 \
+        bsearch.3 div.3 ecvt.3 exit.3 getenv.3 getopt.3 getopt_long.3 \
+        getsubopt.3 hcreate.3 imaxabs.3 imaxdiv.3 insque.3 labs.3 ldiv.3 \
+        lldiv.3 lsearch.3 malloc.3 posix_memalign.3 posix_openpt.3 ptsname.3 \
+        qabs.3 qdiv.3 qsort.3 radixsort.3 rand48.3 rand.3 random.3 realpath.3 \
+        strtod.3 strtonum.3 strtol.3 strtoul.3 system.3 tsearch.3
+
+MLINKS+=ecvt.3 fcvt.3 ecvt.3 gcvt.3
+MLINKS+=getenv.3 setenv.3 getenv.3 unsetenv.3 getenv.3 putenv.3
+MLINKS+=getopt_long.3 getopt_long_only.3
+MLINKS+=hcreate.3 hdestroy.3 hcreate.3 hsearch.3
+MLINKS+=insque.3 remque.3
+MLINKS+=labs.3 llabs.3
+MLINKS+=lsearch.3 lfind.3
+MLINKS+=malloc.3 free.3 malloc.3 realloc.3 malloc.3 calloc.3
+MLINKS+=malloc.3 cfree.3 malloc.3 malloc.conf.5
+MLINKS+=qsort.3 heapsort.3 qsort.3 mergesort.3
+MLINKS+=radixsort.3 sradixsort.3
+MLINKS+=rand.3 srand.3 rand.3 rand_r.3
+MLINKS+=random.3 initstate.3 random.3 setstate.3
+MLINKS+=random.3 srandom.3 random.3 srandomdev.3
+MLINKS+=rand48.3 drand48.3 rand48.3 erand48.3 rand48.3 lrand48.3
+MLINKS+=rand48.3 mrand48.3 rand48.3 nrand48.3 rand48.3 jrand48.3
+MLINKS+=rand48.3 srand48.3 rand48.3 seed48.3 rand48.3 lcong48.3
+MLINKS+=ptsname.3 grantpt.3 ptsname.3 unlockpt.3
+MLINKS+=strtod.3 strtof.3 strtod.3 strtold.3
+MLINKS+=strtol.3 strtoll.3 strtol.3 strtoq.3 strtol.3 strtoimax.3
+MLINKS+=strtoul.3 strtoull.3 strtoul.3 strtouq.3 strtoul.3 strtoumax.3
+MLINKS+=tsearch.3 tfind.3
+MLINKS+=tsearch.3 tdelete.3
+MLINKS+=tsearch.3 twalk.3
+MLINKS+=a64l.3 l64a.3
diff --git a/src/lib/libc/stdlib/_Exit.c b/src/lib/libc/stdlib/_Exit.c
new file mode 100644
index 0000000000..ccf64c2e87
--- /dev/null
+++ b/src/lib/libc/stdlib/_Exit.c
@@ -0,0 +1,22 @@
+/*      $OpenBSD: _Exit.c,v 1.3 2013/04/03 03:39:29 guenther Exp $      */
+
+/*
+ * Placed in the public domain by Todd C. Miller on January 21, 2004.
+ */
+
+#include <stdlib.h>
+#include <unistd.h>
+
+/*
+ * _Exit() is the ISO/ANSI C99 equivalent of the POSIX _exit() function.
+ * No atexit() handlers are called and no signal handlers are run.
+ * Whether or not stdio buffers are flushed or temporary files are removed
+ * is implementation-dependent in C99.  Indeed, POSIX specifies that
+ * _Exit() must *not* flush stdio buffers or remove temporary files, but
+ * rather must behave exactly like _exit()
+ */
+void
+_Exit(int status)
+{
+        _exit(status);
+}
diff --git a/src/lib/libc/stdlib/_rand48.c b/src/lib/libc/stdlib/_rand48.c
new file mode 100644
index 0000000000..7c950f7cee
--- /dev/null
+++ b/src/lib/libc/stdlib/_rand48.c
@@ -0,0 +1,47 @@
+/*      $OpenBSD: _rand48.c,v 1.3 2005/08/08 08:05:36 espie Exp $ */
+/*
+ * Copyright (c) 1993 Martin Birgmeier
+ * All rights reserved.
+ *
+ * You may redistribute unmodified or modified versions of this source
+ * code provided that the above copyright notice and this and the
+ * following conditions are retained.
+ *
+ * This software is provided ``as is'', and comes with no warranties
+ * of any kind. I shall in no event be liable for anything that happens
+ * to anyone/anything when using this software.
+ */
+
+#include "rand48.h"
+
+unsigned short __rand48_seed[3] = {
+        RAND48_SEED_0,
+        RAND48_SEED_1,
+        RAND48_SEED_2
+};
+unsigned short __rand48_mult[3] = {
+        RAND48_MULT_0,
+        RAND48_MULT_1,
+        RAND48_MULT_2
+};
+unsigned short __rand48_add = RAND48_ADD;
+
+void
+__dorand48(unsigned short xseed[3])
+{
+        unsigned long accu;
+        unsigned short temp[2];
+
+        accu = (unsigned long) __rand48_mult[0] * (unsigned long) xseed[0] +
+         (unsigned long) __rand48_add;
+        temp[0] = (unsigned short) accu;        /* lower 16 bits */
+        accu >>= sizeof(unsigned short) * 8;
+        accu += (unsigned long) __rand48_mult[0] * (unsigned long) xseed[1] +
+         (unsigned long) __rand48_mult[1] * (unsigned long) xseed[0];
+        temp[1] = (unsigned short) accu;        /* middle 16 bits */
+        accu >>= sizeof(unsigned short) * 8;
+        accu += __rand48_mult[0] * xseed[2] + __rand48_mult[1] * xseed[1] + __rand48_mult[2] * xseed[0];
+        xseed[0] = temp[0];
+        xseed[1] = temp[1];
+        xseed[2] = (unsigned short) accu;
+}
diff --git a/src/lib/libc/stdlib/a64l.3 b/src/lib/libc/stdlib/a64l.3
new file mode 100644
index 0000000000..11a74604ac
--- /dev/null
+++ b/src/lib/libc/stdlib/a64l.3
@@ -0,0 +1,133 @@
+.\" $OpenBSD: a64l.3,v 1.12 2013/06/05 03:39:23 tedu Exp $
+.\"
+.\" Copyright (c) 1997 Todd C. Miller <Todd.Miller@courtesan.com>
+.\"
+.\" Permission to use, copy, modify, and distribute this software for any
+.\" purpose with or without fee is hereby granted, provided that the above
+.\" copyright notice and this permission notice appear in all copies.
+.\"
+.\" THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+.\" WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+.\" MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+.\" ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+.\" WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+.\" ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+.\" OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+.\"
+.Dd $Mdocdate: June 5 2013 $
+.Dt A64L 3
+.Os
+.Sh NAME
+.Nm a64l ,
+.Nm l64a
+.Nd convert between 32-bit integer and radix-64 ASCII string
+.Sh SYNOPSIS
+.In stdlib.h
+.Ft long
+.Fn a64l "const char *s"
+.Ft char *
+.Fn l64a "long l"
+.Sh DESCRIPTION
+The
+.Fn a64l
+and
+.Fn l64a
+functions are used to maintain numbers stored in radix-64
+.Tn ASCII
+characters.
+This is a notation by which 32-bit integers
+can be represented by up to six characters; each character represents a
+.Dq digit
+in a radix-64 notation.
+.Pp
+The characters used to represent digits are
+.Ql \&.
+for 0,
+.Ql /
+for 1,
+.Ql 0
+through
+.Ql 9
+for 2-11,
+.Ql A
+through
+.Ql Z
+for 12-37, and
+.Ql a
+through
+.Ql z
+for 38-63.
+.Pp
+The
+.Fn a64l
+function takes a pointer to a NUL-terminated radix-64 representation
+and returns a corresponding 32-bit value.
+If the string pointed to by
+.Fa s
+contains more than six characters,
+.Fn a64l
+will use the first six.
+.Fn a64l
+scans the character string from left to right, decoding
+each character as a 6-bit radix-64 number.
+If a long integer is
+larger than 32 bits, the return value will be sign-extended.
+.Pp
+.Fn l64a
+takes a long integer argument
+.Fa l
+and returns a pointer to the corresponding radix-64 representation.
+.Sh RETURN VALUES
+On success,
+.Fn a64l
+returns a 32-bit representation of
+.Fa s .
+If
+.Fa s
+is a null pointer or if it contains digits other than those described above,
+.Fn a64l
+returns \-1 and sets the global variable
+.Va errno
+to
+.Er EINVAL .
+.Pp
+On success,
+.Fn l64a
+returns a pointer to a string containing the radix-64 representation of
+.Fa l .
+If
+.Fa l
+is 0,
+.Fn l64a
+returns a pointer to the empty string.
+If
+.Fa l
+is negative,
+.Fn l64a
+returns a null pointer and sets the global variable
+.Va errno
+to
+.Er EINVAL .
+.Sh STANDARDS
+The
+.Fn a64l
+and
+.Fn l64a
+functions conform to
+.St -xpg4.2 .
+.Sh CAVEATS
+The value returned by
+.Fn l64a
+is a pointer into a static buffer, the contents of which
+will be overwritten by subsequent calls.
+.Pp
+The value returned by
+.Fn a64l
+may be incorrect if the value is too large; for that reason, only strings
+that resulted from a call to
+.Fn l64a
+should be used to call
+.Fn a64l .
+.Pp
+If a long integer is larger than 32 bits, only the low-order
+32 bits are used.
diff --git a/src/lib/libc/stdlib/a64l.c b/src/lib/libc/stdlib/a64l.c
new file mode 100644
index 0000000000..5312929c6f
--- /dev/null
+++ b/src/lib/libc/stdlib/a64l.c
@@ -0,0 +1,42 @@
+/*      $OpenBSD: a64l.c,v 1.5 2005/08/08 08:05:36 espie Exp $ */
+/*
+ * Written by J.T. Conklin <jtc@netbsd.org>.
+ * Public domain.
+ */
+
+#include <errno.h>
+#include <stdlib.h>
+
+long
+a64l(const char *s)
+{
+        long value, digit, shift;
+        int i;
+
+        if (s == NULL) {
+                errno = EINVAL;
+                return(-1L);
+        }
+
+        value = 0;
+        shift = 0;
+        for (i = 0; *s && i < 6; i++, s++) {
+                if (*s >= '.' && *s <= '/')
+                        digit = *s - '.';
+                else if (*s >= '0' && *s <= '9')
+                        digit = *s - '0' + 2;
+                else if (*s >= 'A' && *s <= 'Z')
+                        digit = *s - 'A' + 12;
+                else if (*s >= 'a' && *s <= 'z')
+                        digit = *s - 'a' + 38;
+                else {
+                        errno = EINVAL;
+                        return(-1L);
+                }
+
+                value |= digit << shift;
+                shift += 6;
+        }
+
+        return(value);
+}
diff --git a/src/lib/libc/stdlib/abort.3 b/src/lib/libc/stdlib/abort.3
new file mode 100644
index 0000000000..322d629930
--- /dev/null
+++ b/src/lib/libc/stdlib/abort.3
@@ -0,0 +1,68 @@
+.\" Copyright (c) 1990, 1991 The Regents of the University of California.
+.\" All rights reserved.
+.\"
+.\" This code is derived from software contributed to Berkeley by
+.\" the American National Standards Committee X3, on Information
+.\" Processing Systems.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\" 3. Neither the name of the University nor the names of its contributors
+.\"    may be used to endorse or promote products derived from this software
+.\"    without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.\"     $OpenBSD: abort.3,v 1.10 2013/07/17 05:42:11 schwarze Exp $
+.\"
+.Dd $Mdocdate: July 17 2013 $
+.Dt ABORT 3
+.Os
+.Sh NAME
+.Nm abort
+.Nd cause abnormal program termination
+.Sh SYNOPSIS
+.In stdlib.h
+.Ft void
+.Fn abort void
+.Sh DESCRIPTION
+The
+.Fn abort
+function causes abnormal program termination to occur, unless the signal
+.Dv SIGABRT
+is being caught and the signal handler does not return.
+.Pp
+Any open streams are flushed and closed.
+.Sh RETURN VALUES
+The
+.Fn abort
+function never returns.
+.Sh SEE ALSO
+.Xr sigaction 2 ,
+.Xr exit 3
+.Sh STANDARDS
+The
+.Fn abort
+function conforms to
+.St -p1003.1-90 .
+.Sh HISTORY
+The
+.Fn abort
+function first appeared in
+.At v5 .
diff --git a/src/lib/libc/stdlib/abort.c b/src/lib/libc/stdlib/abort.c
new file mode 100644
index 0000000000..4c8dc70a1d
--- /dev/null
+++ b/src/lib/libc/stdlib/abort.c
@@ -0,0 +1,80 @@
+/*      $OpenBSD: abort.c,v 1.16 2012/11/10 03:46:11 guenther Exp $ */
+/*
+ * Copyright (c) 1985 Regents of the University of California.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <signal.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include "thread_private.h"
+#include "atexit.h"
+
+int     _thread_sys_sigprocmask(int, const sigset_t *, sigset_t *);
+
+void
+abort(void)
+{
+        struct atexit *p = __atexit;
+        static int cleanup_called = 0;
+        sigset_t mask;
+
+
+        sigfillset(&mask);
+        /*
+         * don't block SIGABRT to give any handler a chance; we ignore
+         * any errors -- X311J doesn't allow abort to return anyway.
+         */
+        sigdelset(&mask, SIGABRT);
+        (void)_thread_sys_sigprocmask(SIG_SETMASK, &mask, (sigset_t *)NULL);
+
+        /*
+         * POSIX requires we flush stdio buffers on abort
+         */
+        if (cleanup_called == 0) {
+                /* the cleanup routine lives in fns[0] on the last page */
+                while (p != NULL && p->next != NULL)
+                        p = p->next;
+                /* the check for fn_dso == NULL is mostly paranoia */
+                if (p != NULL && p->fns[0].fn_dso == NULL &&
+                    p->fns[0].fn_ptr.std_func != NULL) {
+                        cleanup_called = 1;
+                        (*p->fns[0].fn_ptr.std_func)();
+                }
+        }
+
+        (void)raise(SIGABRT);
+
+        /*
+         * if SIGABRT ignored, or caught and the handler returns, do
+         * it again, only harder.
+         */
+        (void)signal(SIGABRT, SIG_DFL);
+        (void)_thread_sys_sigprocmask(SIG_SETMASK, &mask, (sigset_t *)NULL);
+        (void)raise(SIGABRT);
+        _exit(1);
+}
diff --git a/src/lib/libc/stdlib/abs.3 b/src/lib/libc/stdlib/abs.3
new file mode 100644
index 0000000000..420bdf6fdf
--- /dev/null
+++ b/src/lib/libc/stdlib/abs.3
@@ -0,0 +1,70 @@
+.\" Copyright (c) 1990, 1991 The Regents of the University of California.
+.\" All rights reserved.
+.\"
+.\" This code is derived from software contributed to Berkeley by
+.\" the American National Standards Committee X3, on Information
+.\" Processing Systems.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\" 3. Neither the name of the University nor the names of its contributors
+.\"    may be used to endorse or promote products derived from this software
+.\"    without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.\"     $OpenBSD: abs.3,v 1.11 2013/07/17 05:42:11 schwarze Exp $
+.\"
+.Dd $Mdocdate: July 17 2013 $
+.Dt ABS 3
+.Os
+.Sh NAME
+.Nm abs
+.Nd integer absolute value function
+.Sh SYNOPSIS
+.In stdlib.h
+.Ft int
+.Fn abs "int j"
+.Sh DESCRIPTION
+The
+.Fn abs
+function computes the absolute value of the integer
+.Fa j .
+.Sh RETURN VALUES
+The
+.Fn abs
+function returns the absolute value.
+.Sh SEE ALSO
+.Xr cabs 3 ,
+.Xr floor 3 ,
+.Xr hypot 3 ,
+.Xr imaxabs 3 ,
+.Xr labs 3
+.Sh STANDARDS
+The
+.Fn abs
+function conforms to
+.St -ansiC .
+.Sh HISTORY
+The
+.Fn abs
+function first appeared in
+.At v6 .
+.Sh BUGS
+The absolute value of the most negative integer remains negative.
diff --git a/src/lib/libc/stdlib/abs.c b/src/lib/libc/stdlib/abs.c
new file mode 100644
index 0000000000..5d2fbae69f
--- /dev/null
+++ b/src/lib/libc/stdlib/abs.c
@@ -0,0 +1,37 @@
+/*      $OpenBSD: abs.c,v 1.5 2005/08/08 08:05:36 espie Exp $ */
+/*-
+ * Copyright (c) 1990 The Regents of the University of California.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <stdlib.h>
+
+int
+abs(int j)
+{
+        return(j < 0 ? -j : j);
+}
diff --git a/src/lib/libc/stdlib/alloca.3 b/src/lib/libc/stdlib/alloca.3
new file mode 100644
index 0000000000..47e9b97143
--- /dev/null
+++ b/src/lib/libc/stdlib/alloca.3
@@ -0,0 +1,76 @@
+.\" Copyright (c) 1980, 1991 Regents of the University of California.
+.\" All rights reserved.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\" 3. Neither the name of the University nor the names of its contributors
+.\"    may be used to endorse or promote products derived from this software
+.\"    without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.\"     $OpenBSD: alloca.3,v 1.13 2013/06/05 03:39:23 tedu Exp $
+.\"
+.Dd $Mdocdate: June 5 2013 $
+.Dt ALLOCA 3
+.Os
+.Sh NAME
+.Nm alloca
+.Nd memory allocator
+.Sh SYNOPSIS
+.In stdlib.h
+.Ft void *
+.Fn alloca "size_t size"
+.Sh DESCRIPTION
+The
+.Fn alloca
+function allocates
+.Fa size
+bytes of space in the stack frame of the caller.
+This temporary space is automatically freed on return.
+.Sh RETURN VALUES
+The
+.Fn alloca
+function returns a pointer to the beginning of the allocated space.
+.Sh SEE ALSO
+.Xr pagesize 1 ,
+.Xr brk 2 ,
+.Xr calloc 3 ,
+.Xr malloc 3 ,
+.Xr realloc 3
+.\" .Sh HISTORY
+.\" The
+.\" .Fn alloca
+.\" function appeared in
+.\" .Bx ?? .
+.\" The function appeared in 32v, pwb and pwb.2 and in 3bsd 4bsd
+.\" The first man page (or link to a man page that I can find at the
+.\" moment is 4.3...
+.Sh BUGS
+The
+.Fn alloca
+function is slightly unsafe because it cannot ensure that the pointer
+returned points to a valid and usable block of memory.
+The allocation made may exceed the bounds of the stack, or even go
+further into other objects in memory, and
+.Fn alloca
+cannot determine such an error.
+Avoid
+.Fn alloca
+with large unbounded allocations.
diff --git a/src/lib/libc/stdlib/atexit.3 b/src/lib/libc/stdlib/atexit.3
new file mode 100644
index 0000000000..8e3ac3e60f
--- /dev/null
+++ b/src/lib/libc/stdlib/atexit.3
@@ -0,0 +1,77 @@
+.\" Copyright (c) 1990, 1991 The Regents of the University of California.
+.\" All rights reserved.
+.\"
+.\" This code is derived from software contributed to Berkeley by
+.\" Chris Torek and the American National Standards Committee X3,
+.\" on Information Processing Systems.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\" 3. Neither the name of the University nor the names of its contributors
+.\"    may be used to endorse or promote products derived from this software
+.\"    without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.\"     $OpenBSD: atexit.3,v 1.9 2013/06/05 03:39:23 tedu Exp $
+.\"
+.Dd $Mdocdate: June 5 2013 $
+.Dt ATEXIT 3
+.Os
+.Sh NAME
+.Nm atexit
+.Nd register a function to be called on exit
+.Sh SYNOPSIS
+.In stdlib.h
+.Ft int
+.Fn atexit "void (*function)(void)"
+.Sh DESCRIPTION
+The
+.Fn atexit
+function registers the given
+.Fa function
+to be called at program exit, whether via
+.Xr exit 3
+or via return from the program's
+.Fn main .
+Functions so registered are called in reverse order;
+no arguments are passed.
+At least 32 functions can always be registered,
+and more are allowed as long as sufficient memory can be allocated.
+.Pp
+.Fn atexit
+is very difficult to use correctly without creating
+.Xr exit 3 Ns -time
+races.
+Unless absolutely necessary, please avoid using it.
+.Sh RETURN VALUES
+.Rv -std atexit
+.Sh ERRORS
+.Bl -tag -width Er
+.It Bq Er ENOMEM
+No memory was available to add the function to the list.
+The existing list of functions is unmodified.
+.El
+.Sh SEE ALSO
+.Xr exit 3
+.Sh STANDARDS
+The
+.Fn atexit
+function conforms to
+.St -ansiC .
diff --git a/src/lib/libc/stdlib/atexit.c b/src/lib/libc/stdlib/atexit.c
new file mode 100644
index 0000000000..049da3261d
--- /dev/null
+++ b/src/lib/libc/stdlib/atexit.c
@@ -0,0 +1,194 @@
+/*      $OpenBSD: atexit.c,v 1.17 2013/12/28 18:38:42 kettenis Exp $ */
+/*
+ * Copyright (c) 2002 Daniel Hartmeier
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ *    - Redistributions of source code must retain the above copyright
+ *      notice, this list of conditions and the following disclaimer.
+ *    - Redistributions in binary form must reproduce the above
+ *      copyright notice, this list of conditions and the following
+ *      disclaimer in the documentation and/or other materials provided
+ *      with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+ * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+ * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+
+#include <sys/types.h>
+#include <sys/mman.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include "atexit.h"
+#include "thread_private.h"
+
+struct atexit *__atexit;
+
+/*
+ * Function pointers are stored in a linked list of pages. The list
+ * is initially empty, and pages are allocated on demand. The first
+ * function pointer in the first allocated page (the last one in
+ * the linked list) is reserved for the cleanup function.
+ *
+ * Outside the following functions, all pages are mprotect()'ed
+ * to prevent unintentional/malicious corruption.
+ */
+
+/*
+ * Register a function to be performed at exit or when a shared object
+ * with the given dso handle is unloaded dynamically.  Also used as
+ * the backend for atexit().  For more info on this API, see:
+ *
+ *      http://www.codesourcery.com/cxx-abi/abi.html#dso-dtor
+ */
+int
+__cxa_atexit(void (*func)(void *), void *arg, void *dso)
+{
+        struct atexit *p = __atexit;
+        struct atexit_fn *fnp;
+        int pgsize = getpagesize();
+        int ret = -1;
+
+        if (pgsize < sizeof(*p))
+                return (-1);
+        _ATEXIT_LOCK();
+        p = __atexit;
+        if (p != NULL) {
+                if (p->ind + 1 >= p->max)
+                        p = NULL;
+                else if (mprotect(p, pgsize, PROT_READ | PROT_WRITE))
+                        goto unlock;
+        }
+        if (p == NULL) {
+                p = mmap(NULL, pgsize, PROT_READ | PROT_WRITE,
+                    MAP_ANON | MAP_PRIVATE, -1, 0);
+                if (p == MAP_FAILED)
+                        goto unlock;
+                if (__atexit == NULL) {
+                        memset(&p->fns[0], 0, sizeof(p->fns[0]));
+                        p->ind = 1;
+                } else
+                        p->ind = 0;
+                p->max = (pgsize - ((char *)&p->fns[0] - (char *)p)) /
+                    sizeof(p->fns[0]);
+                p->next = __atexit;
+                __atexit = p;
+        }
+        fnp = &p->fns[p->ind++];
+        fnp->fn_ptr.cxa_func = func;
+        fnp->fn_arg = arg;
+        fnp->fn_dso = dso;
+        if (mprotect(p, pgsize, PROT_READ))
+                goto unlock;
+        ret = 0;
+unlock:
+        _ATEXIT_UNLOCK();
+        return (ret);
+}
+
+/*
+ * Call all handlers registered with __cxa_atexit() for the shared
+ * object owning 'dso'.
+ * Note: if 'dso' is NULL, then all remaining handlers are called.
+ */
+void
+__cxa_finalize(void *dso)
+{
+        struct atexit *p, *q;
+        struct atexit_fn fn;
+        int n, pgsize = getpagesize();
+        static int call_depth;
+
+        call_depth++;
+
+        for (p = __atexit; p != NULL; p = p->next) {
+                for (n = p->ind; --n >= 0;) {
+                        if (p->fns[n].fn_ptr.cxa_func == NULL)
+                                continue;       /* already called */
+                        if (dso != NULL && dso != p->fns[n].fn_dso)
+                                continue;       /* wrong DSO */
+
+                        /*
+                         * Mark handler as having been already called to avoid
+                         * dupes and loops, then call the appropriate function.
+                         */
+                        fn = p->fns[n];
+                        if (mprotect(p, pgsize, PROT_READ | PROT_WRITE) == 0) {
+                                p->fns[n].fn_ptr.cxa_func = NULL;
+                                mprotect(p, pgsize, PROT_READ);
+                        }
+                        if (fn.fn_dso != NULL)
+                                (*fn.fn_ptr.cxa_func)(fn.fn_arg);
+                        else
+                                (*fn.fn_ptr.std_func)();
+                }
+        }
+
+        call_depth--;
+
+        /*
+         * If called via exit(), unmap the pages since we have now run
+         * all the handlers.  We defer this until calldepth == 0 so that
+         * we don't unmap things prematurely if called recursively.
+         */
+        if (dso == NULL && call_depth == 0) {
+                for (p = __atexit; p != NULL; ) {
+                        q = p;
+                        p = p->next;
+                        munmap(q, pgsize);
+                }
+                __atexit = NULL;
+        }
+}
+
+/*
+ * Register the cleanup function
+ */
+void
+__atexit_register_cleanup(void (*func)(void))
+{
+        struct atexit *p;
+        int pgsize = getpagesize();
+
+        if (pgsize < sizeof(*p))
+                return;
+        _ATEXIT_LOCK();
+        p = __atexit;
+        while (p != NULL && p->next != NULL)
+                p = p->next;
+        if (p == NULL) {
+                p = mmap(NULL, pgsize, PROT_READ | PROT_WRITE,
+                    MAP_ANON | MAP_PRIVATE, -1, 0);
+                if (p == MAP_FAILED)
+                        goto unlock;
+                p->ind = 1;
+                p->max = (pgsize - ((char *)&p->fns[0] - (char *)p)) /
+                    sizeof(p->fns[0]);
+                p->next = NULL;
+                __atexit = p;
+        } else {
+                if (mprotect(p, pgsize, PROT_READ | PROT_WRITE))
+                        goto unlock;
+        }
+        p->fns[0].fn_ptr.std_func = func;
+        p->fns[0].fn_arg = NULL;
+        p->fns[0].fn_dso = NULL;
+        mprotect(p, pgsize, PROT_READ);
+unlock:
+        _ATEXIT_UNLOCK();
+}
diff --git a/src/lib/libc/stdlib/atexit.h b/src/lib/libc/stdlib/atexit.h
new file mode 100644
index 0000000000..c44005deda
--- /dev/null
+++ b/src/lib/libc/stdlib/atexit.h
@@ -0,0 +1,50 @@
+/*      $OpenBSD: atexit.h,v 1.8 2013/06/02 21:08:36 matthew Exp $ */
+
+/*
+ * Copyright (c) 2002 Daniel Hartmeier
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ *    - Redistributions of source code must retain the above copyright
+ *      notice, this list of conditions and the following disclaimer.
+ *    - Redistributions in binary form must reproduce the above
+ *      copyright notice, this list of conditions and the following
+ *      disclaimer in the documentation and/or other materials provided
+ *      with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+ * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+ * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+
+struct atexit {
+        struct atexit *next;            /* next in list */
+        int ind;                        /* next index in this table */
+        int max;                        /* max entries >= ATEXIT_SIZE */
+        struct atexit_fn {
+                union {
+                        void (*std_func)(void);
+                        void (*cxa_func)(void *);
+                } fn_ptr;
+                void *fn_arg;           /* argument for CXA callback */
+                void *fn_dso;           /* shared module handle */
+        } fns[1];                       /* the table itself */
+};
+
+extern struct atexit *__atexit;         /* points to head of LIFO stack */
+
+int     __cxa_atexit(void (*)(void *), void *, void *);
+void    __cxa_finalize(void *);
diff --git a/src/lib/libc/stdlib/atof.3 b/src/lib/libc/stdlib/atof.3
new file mode 100644
index 0000000000..53722a6253
--- /dev/null
+++ b/src/lib/libc/stdlib/atof.3
@@ -0,0 +1,74 @@
+.\" Copyright (c) 1991 The Regents of the University of California.
+.\" All rights reserved.
+.\"
+.\" This code is derived from software contributed to Berkeley by
+.\" the American National Standards Committee X3, on Information
+.\" Processing Systems.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\" 3. Neither the name of the University nor the names of its contributors
+.\"    may be used to endorse or promote products derived from this software
+.\"    without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.\"     $OpenBSD: atof.3,v 1.7 2013/07/17 05:42:11 schwarze Exp $
+.\"
+.Dd $Mdocdate: July 17 2013 $
+.Dt ATOF 3
+.Os
+.Sh NAME
+.Nm atof
+.Nd convert
+.Tn ASCII
+string to double
+.Sh SYNOPSIS
+.In stdlib.h
+.Ft double
+.Fn atof "const char *nptr"
+.Sh DESCRIPTION
+The
+.Fn atof
+function converts the initial portion of the string pointed to by
+.Fa nptr
+to
+.Li double
+representation.
+.Pp
+It is equivalent to:
+.Bd -literal -offset indent
+strtod(nptr, (char **)NULL);
+.Ed
+.Sh SEE ALSO
+.Xr atoi 3 ,
+.Xr atol 3 ,
+.Xr strtod 3 ,
+.Xr strtol 3 ,
+.Xr strtoul 3
+.Sh STANDARDS
+The
+.Fn atof
+function conforms to
+.St -ansiC .
+.Sh HISTORY
+An
+.Fn atof
+function first appeared in
+.At v1 .
diff --git a/src/lib/libc/stdlib/atof.c b/src/lib/libc/stdlib/atof.c
new file mode 100644
index 0000000000..d14b58b070
--- /dev/null
+++ b/src/lib/libc/stdlib/atof.c
@@ -0,0 +1,37 @@
+/*      $OpenBSD: atof.c,v 1.5 2005/08/08 08:05:36 espie Exp $ */
+/*
+ * Copyright (c) 1988 The Regents of the University of California.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <stdlib.h>
+
+double
+atof(const char *ascii)
+{
+        return(strtod(ascii, (char **)NULL));
+}
diff --git a/src/lib/libc/stdlib/atoi.3 b/src/lib/libc/stdlib/atoi.3
new file mode 100644
index 0000000000..fd5c720e02
--- /dev/null
+++ b/src/lib/libc/stdlib/atoi.3
@@ -0,0 +1,91 @@
+.\" Copyright (c) 1990, 1991, 1993
+.\"    The Regents of the University of California.  All rights reserved.
+.\"
+.\" This code is derived from software contributed to Berkeley by
+.\" the American National Standards Committee X3, on Information
+.\" Processing Systems.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\" 3. Neither the name of the University nor the names of its contributors
+.\"    may be used to endorse or promote products derived from this software
+.\"    without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.\"     $OpenBSD: atoi.3,v 1.11 2013/07/17 05:42:11 schwarze Exp $
+.\"
+.Dd $Mdocdate: July 17 2013 $
+.Dt ATOI 3
+.Os
+.Sh NAME
+.Nm atoi
+.Nd convert
+.Tn ASCII
+string to integer
+.Sh SYNOPSIS
+.In stdlib.h
+.Ft int
+.Fn atoi "const char *nptr"
+.Sh DESCRIPTION
+The
+.Fn atoi
+function converts the initial portion of the string pointed to by
+.Fa nptr
+to
+.Li integer
+representation.
+.Pp
+It is equivalent to:
+.Bd -literal -offset indent
+(int)strtol(nptr, (char **)NULL, 10);
+.Ed
+.Sh SEE ALSO
+.Xr atof 3 ,
+.Xr atol 3 ,
+.Xr strtod 3 ,
+.Xr strtol 3 ,
+.Xr strtonum 3 ,
+.Xr strtoul 3
+.Sh STANDARDS
+The
+.Fn atoi
+function conforms to
+.St -ansiC .
+.Sh HISTORY
+An
+.Fn atoi
+function first appeared in
+.At v1 .
+.Sh CAVEATS
+.Nm
+does no overflow checking, handles unsigned numbers poorly,
+and handles strings containing trailing extra characters
+(like
+.Dq "123abc" )
+poorly.
+Careful use of
+.Xr strtol 3
+and
+.Xr strtoul 3
+can alleviate these problems,
+but
+.Xr strtonum 3
+can be used to convert numbers from strings much more safely
+and easily.
diff --git a/src/lib/libc/stdlib/atoi.c b/src/lib/libc/stdlib/atoi.c
new file mode 100644
index 0000000000..b0842678e2
--- /dev/null
+++ b/src/lib/libc/stdlib/atoi.c
@@ -0,0 +1,37 @@
+/*      $OpenBSD: atoi.c,v 1.5 2005/08/08 08:05:36 espie Exp $ */
+/*
+ * Copyright (c) 1988 Regents of the University of California.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <stdlib.h>
+
+int
+atoi(const char *str)
+{
+        return((int)strtol(str, (char **)NULL, 10));
+}
diff --git a/src/lib/libc/stdlib/atol.3 b/src/lib/libc/stdlib/atol.3
new file mode 100644
index 0000000000..ae4cbc7c3d
--- /dev/null
+++ b/src/lib/libc/stdlib/atol.3
@@ -0,0 +1,70 @@
+.\" Copyright (c) 1990, 1991 The Regents of the University of California.
+.\" All rights reserved.
+.\"
+.\" This code is derived from software contributed to Berkeley by
+.\" the American National Standards Committee X3, on Information
+.\" Processing Systems.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\" 3. Neither the name of the University nor the names of its contributors
+.\"    may be used to endorse or promote products derived from this software
+.\"    without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.\"     $OpenBSD: atol.3,v 1.8 2013/06/05 03:39:23 tedu Exp $
+.\"
+.Dd $Mdocdate: June 5 2013 $
+.Dt ATOL 3
+.Os
+.Sh NAME
+.Nm atol
+.Nd convert
+.Tn ASCII
+string to long integer
+.Sh SYNOPSIS
+.In stdlib.h
+.Ft long
+.Fn atol "const char *nptr"
+.Sh DESCRIPTION
+The
+.Fn atol
+function converts the initial portion of the string pointed to by
+.Fa nptr
+to
+.Li long integer
+representation.
+.Pp
+It is equivalent to:
+.Bd -literal -offset indent
+strtol(nptr, (char **)NULL, 10);
+.Ed
+.Sh SEE ALSO
+.Xr atof 3 ,
+.Xr atoi 3 ,
+.Xr atoll 3 ,
+.Xr strtod 3 ,
+.Xr strtol 3 ,
+.Xr strtoul 3
+.Sh STANDARDS
+The
+.Fn atol
+function conforms to
+.St -ansiC-99 .
diff --git a/src/lib/libc/stdlib/atol.c b/src/lib/libc/stdlib/atol.c
new file mode 100644
index 0000000000..1970804401
--- /dev/null
+++ b/src/lib/libc/stdlib/atol.c
@@ -0,0 +1,37 @@
+/*      $OpenBSD: atol.c,v 1.5 2005/08/08 08:05:36 espie Exp $ */
+/*
+ * Copyright (c) 1988 Regents of the University of California.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <stdlib.h>
+
+long
+atol(const char *str)
+{
+        return(strtol(str, (char **)NULL, 10));
+}
diff --git a/src/lib/libc/stdlib/atoll.3 b/src/lib/libc/stdlib/atoll.3
new file mode 100644
index 0000000000..a9614ae7bb
--- /dev/null
+++ b/src/lib/libc/stdlib/atoll.3
@@ -0,0 +1,70 @@
+.\" Copyright (c) 1990, 1991 The Regents of the University of California.
+.\" All rights reserved.
+.\"
+.\" This code is derived from software contributed to Berkeley by
+.\" the American National Standards Committee X3, on Information
+.\" Processing Systems.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\" 3. Neither the name of the University nor the names of its contributors
+.\"    may be used to endorse or promote products derived from this software
+.\"    without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.\"     $OpenBSD: atoll.3,v 1.6 2013/06/05 03:39:23 tedu Exp $
+.\"
+.Dd $Mdocdate: June 5 2013 $
+.Dt ATOLL 3
+.Os
+.Sh NAME
+.Nm atoll
+.Nd convert
+.Tn ASCII
+string to long long integer
+.Sh SYNOPSIS
+.In stdlib.h
+.Ft long long
+.Fn atoll "const char *nptr"
+.Sh DESCRIPTION
+The
+.Fn atoll
+function converts the initial portion of the string pointed to by
+.Fa nptr
+to
+.Li long long integer
+representation.
+.Pp
+It is equivalent to:
+.Bd -literal -offset indent
+strtoll(nptr, (char **)NULL, 10);
+.Ed
+.Sh SEE ALSO
+.Xr atof 3 ,
+.Xr atoi 3 ,
+.Xr atol 3 ,
+.Xr strtod 3 ,
+.Xr strtol 3 ,
+.Xr strtoul 3
+.Sh STANDARDS
+The
+.Fn atoll
+function conforms to
+.St -ansiC-99 .
diff --git a/src/lib/libc/stdlib/atoll.c b/src/lib/libc/stdlib/atoll.c
new file mode 100644
index 0000000000..a65e682cfb
--- /dev/null
+++ b/src/lib/libc/stdlib/atoll.c
@@ -0,0 +1,38 @@
+/*      $OpenBSD: atoll.c,v 1.3 2005/08/08 08:05:36 espie Exp $ */
+/*
+ * Copyright (c) 1988 Regents of the University of California.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <stdlib.h>
+
+long long
+atoll(str)
+        const char *str;
+{
+        return(strtoll(str, (char **)NULL, 10));
+}
diff --git a/src/lib/libc/stdlib/bsearch.3 b/src/lib/libc/stdlib/bsearch.3
new file mode 100644
index 0000000000..270086df36
--- /dev/null
+++ b/src/lib/libc/stdlib/bsearch.3
@@ -0,0 +1,84 @@
+.\" Copyright (c) 1990, 1991, 1993, 1994
+.\"    The Regents of the University of California.  All rights reserved.
+.\"
+.\" This code is derived from software contributed to Berkeley by
+.\" the American National Standards Committee X3, on Information
+.\" Processing Systems.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\" 3. Neither the name of the University nor the names of its contributors
+.\"    may be used to endorse or promote products derived from this software
+.\"    without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.\"     $OpenBSD: bsearch.3,v 1.9 2013/06/05 03:39:23 tedu Exp $
+.\"
+.Dd $Mdocdate: June 5 2013 $
+.Dt BSEARCH 3
+.Os
+.Sh NAME
+.Nm bsearch
+.Nd binary search of a sorted table
+.Sh SYNOPSIS
+.In stdlib.h
+.Ft void *
+.Fn bsearch "const void *key" "const void *base" "size_t nmemb" "size_t size" "int (*compar)(const void *, const void *)"
+.Sh DESCRIPTION
+The
+.Fn bsearch
+function searches an array of
+.Fa nmemb
+objects, the initial member of which is
+pointed to by
+.Fa base ,
+for a member that matches the object pointed to by
+.Fa key .
+The size of each member of the array is specified by
+.Fa size .
+.Pp
+The contents of the array should be in ascending sorted order according
+to the comparison function referenced by
+.Fa compar .
+The
+.Fa compar
+routine is expected to have two arguments which point to the
+.Fa key
+object and to an array member, in that order, and should return an integer
+less than, equal to, or greater than zero if the
+.Fa key
+object is found, respectively, to be less than, to match, or be
+greater than the array member.
+.Sh RETURN VALUES
+The
+.Fn bsearch
+function returns a pointer to a matching member of the array, or a null
+pointer if no match is found.
+If two members compare as equal, which member is matched is unspecified.
+.Sh SEE ALSO
+.Xr db 3 ,
+.Xr lsearch 3 ,
+.Xr qsort 3 ,
+.Xr tsearch 3
+.Sh STANDARDS
+The
+.Fn bsearch
+function conforms to
+.St -ansiC .
diff --git a/src/lib/libc/stdlib/bsearch.c b/src/lib/libc/stdlib/bsearch.c
new file mode 100644
index 0000000000..b48747236e
--- /dev/null
+++ b/src/lib/libc/stdlib/bsearch.c
@@ -0,0 +1,67 @@
+/*
+ * Copyright (c) 1990 Regents of the University of California.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <stdlib.h>
+
+/*
+ * Perform a binary search.
+ *
+ * The code below is a bit sneaky.  After a comparison fails, we
+ * divide the work in half by moving either left or right. If lim
+ * is odd, moving left simply involves halving lim: e.g., when lim
+ * is 5 we look at item 2, so we change lim to 2 so that we will
+ * look at items 0 & 1.  If lim is even, the same applies.  If lim
+ * is odd, moving right again involves halving lim, this time moving
+ * the base up one item past p: e.g., when lim is 5 we change base
+ * to item 3 and make lim 2 so that we will look at items 3 and 4.
+ * If lim is even, however, we have to shrink it by one before
+ * halving: e.g., when lim is 4, we still looked at item 2, so we
+ * have to make lim 3, then halve, obtaining 1, so that we will only
+ * look at item 3.
+ */
+void *
+bsearch(const void *key, const void *base0, size_t nmemb, size_t size,
+    int (*compar)(const void *, const void *))
+{
+        const char *base = base0;
+        int lim, cmp;
+        const void *p;
+
+        for (lim = nmemb; lim != 0; lim >>= 1) {
+                p = base + (lim >> 1) * size;
+                cmp = (*compar)(key, p);
+                if (cmp == 0)
+                        return ((void *)p);
+                if (cmp > 0) {  /* key > p: move right */
+                        base = (char *)p + size;
+                        lim--;
+                } /* else move left */
+        }
+        return (NULL);
+}
diff --git a/src/lib/libc/stdlib/cfree.c b/src/lib/libc/stdlib/cfree.c
new file mode 100644
index 0000000000..acf6d1c8ac
--- /dev/null
+++ b/src/lib/libc/stdlib/cfree.c
@@ -0,0 +1,39 @@
+/*      $OpenBSD: cfree.c,v 1.6 2012/12/05 23:20:01 deraadt Exp $       */
+
+/*
+ * Copyright (c) 1996 SigmaSoft, Th. Lockert <tholo@sigmasoft.com>
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
+ * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
+ * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL
+ * THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+ * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+ * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+ * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+ * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <stdlib.h>
+
+#ifdef __indr_reference
+__indr_reference(free, cfree);
+#else
+
+void
+cfree(void *p)
+{
+    free(p);
+}
+#endif
diff --git a/src/lib/libc/stdlib/div.3 b/src/lib/libc/stdlib/div.3
new file mode 100644
index 0000000000..1a2a326269
--- /dev/null
+++ b/src/lib/libc/stdlib/div.3
@@ -0,0 +1,64 @@
+.\" Copyright (c) 1990, 1991 The Regents of the University of California.
+.\" All rights reserved.
+.\"
+.\" This code is derived from software contributed to Berkeley by
+.\" Chris Torek.
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\" 3. Neither the name of the University nor the names of its contributors
+.\"    may be used to endorse or promote products derived from this software
+.\"    without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.\"     $OpenBSD: div.3,v 1.11 2013/06/05 03:39:23 tedu Exp $
+.\"
+.Dd $Mdocdate: June 5 2013 $
+.Dt DIV 3
+.Os
+.Sh NAME
+.Nm div
+.Nd return quotient and remainder from division
+.Sh SYNOPSIS
+.In stdlib.h
+.Ft div_t
+.Fn div "int num" "int denom"
+.Sh DESCRIPTION
+The
+.Fn div
+function computes the value
+.Fa num Ns / Ns Fa denom
+and returns the quotient and remainder in a structure named
+.Fa div_t
+that contains two
+.Li int
+members named
+.Fa quot
+and
+.Fa rem .
+.Sh SEE ALSO
+.Xr imaxdiv 3 ,
+.Xr ldiv 3 ,
+.Xr lldiv 3 ,
+.Xr qdiv 3
+.Sh STANDARDS
+The
+.Fn div
+function conforms to
+.St -ansiC .
diff --git a/src/lib/libc/stdlib/div.c b/src/lib/libc/stdlib/div.c
new file mode 100644
index 0000000000..f7ac2db4b0
--- /dev/null
+++ b/src/lib/libc/stdlib/div.c
@@ -0,0 +1,71 @@
+/*      $OpenBSD: div.c,v 1.5 2005/08/08 08:05:36 espie Exp $ */
+/*
+ * Copyright (c) 1990 Regents of the University of California.
+ * All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Chris Torek.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <stdlib.h>             /* div_t */
+
+div_t
+div(int num, int denom)
+{
+        div_t r;
+
+        r.quot = num / denom;
+        r.rem = num % denom;
+        /*
+         * The ANSI standard says that |r.quot| <= |n/d|, where
+         * n/d is to be computed in infinite precision.  In other
+         * words, we should always truncate the quotient towards
+         * 0, never -infinity.
+         *
+         * Machine division and remainer may work either way when
+         * one or both of n or d is negative.  If only one is
+         * negative and r.quot has been truncated towards -inf,
+         * r.rem will have the same sign as denom and the opposite
+         * sign of num; if both are negative and r.quot has been
+         * truncated towards -inf, r.rem will be positive (will
+         * have the opposite sign of num).  These are considered
+         * `wrong'.
+         *
+         * If both are num and denom are positive, r will always
+         * be positive.
+         *
+         * This all boils down to:
+         *      if num >= 0, but r.rem < 0, we got the wrong answer.
+         * In that case, to get the right answer, add 1 to r.quot and
+         * subtract denom from r.rem.
+         */
+        if (num >= 0 && r.rem < 0) {
+                r.quot++;
+                r.rem -= denom;
+        }
+        return (r);
+}
diff --git a/src/lib/libc/stdlib/drand48.c b/src/lib/libc/stdlib/drand48.c
new file mode 100644
index 0000000000..b6c046c831
--- /dev/null
+++ b/src/lib/libc/stdlib/drand48.c
@@ -0,0 +1,23 @@
+/*      $OpenBSD: drand48.c,v 1.3 2005/08/08 08:05:36 espie Exp $ */
+/*
+ * Copyright (c) 1993 Martin Birgmeier
+ * All rights reserved.
+ *
+ * You may redistribute unmodified or modified versions of this source
+ * code provided that the above copyright notice and this and the
+ * following conditions are retained.
+ *
+ * This software is provided ``as is'', and comes with no warranties
+ * of any kind. I shall in no event be liable for anything that happens
+ * to anyone/anything when using this software.
+ */
+
+#include "rand48.h"
+
+extern unsigned short __rand48_seed[3];
+
+double
+drand48(void)
+{
+        return erand48(__rand48_seed);
+}
diff --git a/src/lib/libc/stdlib/ecvt.3 b/src/lib/libc/stdlib/ecvt.3
new file mode 100644
index 0000000000..d8a3489b1f
--- /dev/null
+++ b/src/lib/libc/stdlib/ecvt.3
@@ -0,0 +1,168 @@
+.\" $OpenBSD: ecvt.3,v 1.11 2013/06/05 03:39:23 tedu Exp $
+.\"
+.\" Copyright (c) 2002 Todd C. Miller <Todd.Miller@courtesan.com>
+.\"
+.\" Permission to use, copy, modify, and distribute this software for any
+.\" purpose with or without fee is hereby granted, provided that the above
+.\" copyright notice and this permission notice appear in all copies.
+.\"
+.\" THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+.\" WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+.\" MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+.\" ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+.\" WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+.\" ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+.\" OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+.\"
+.\" Sponsored in part by the Defense Advanced Research Projects
+.\" Agency (DARPA) and Air Force Research Laboratory, Air Force
+.\" Materiel Command, USAF, under agreement number F39502-99-1-0512.
+.\"
+.Dd $Mdocdate: June 5 2013 $
+.Dt ECVT 3
+.Os
+.Sh NAME
+.Nm ecvt ,
+.Nm fcvt ,
+.Nm gcvt
+.Nd convert double to
+.Tn ASCII
+string
+.Sh SYNOPSIS
+.In stdlib.h
+.Ft char *
+.Fn ecvt "double value" "int ndigit" "int *decpt" "int *sign"
+.Ft char *
+.Fn fcvt "double value" "int ndigit" "int *decpt" "int *sign"
+.Ft char *
+.Fn gcvt "double value" "int ndigit" "char *buf"
+.Sh DESCRIPTION
+.Bf -symbolic
+These functions are provided for compatibility with legacy code.
+New code should use the
+.Xr snprintf 3
+function for improved safety and portability.
+.Ef
+.Pp
+The
+.Fn ecvt ,
+.Fn fcvt
+and
+.Fn gcvt
+functions convert the double precision floating-point number
+.Fa value
+to a NUL-terminated
+.Tn ASCII
+string.
+.Pp
+The
+.Fn ecvt
+function converts
+.Fa value
+to a NUL-terminated string of exactly
+.Fa ndigit
+digits and returns a pointer to that string.
+The result is padded with zeroes from left to right as needed.
+There are no leading zeroes unless
+.Fa value
+itself is 0.
+The least significant digit is rounded in an implementation-dependent manner.
+The position of the decimal point relative to the beginning of the string
+is stored in
+.Fa decpt .
+A negative value indicates that the decimal point is located
+to the left of the returned digits (this occurs when there is no
+whole number component to
+.Fa value ) .
+If
+.Fa value
+is zero, it is unspecified whether the integer pointed to by
+.Fa decpt
+will be 0 or 1.
+The decimal point itself is not included in the returned string.
+If the sign of the result is negative, the integer pointed to by
+.Fa sign
+is non-zero; otherwise, it is 0.
+.Pp
+If the converted value is out of range or is not representable,
+the contents of the returned string are unspecified.
+.Pp
+The
+.Fn fcvt
+function is identical to
+.Fn ecvt
+with the exception that
+.Fa ndigit
+specifies the number of digits after the decimal point (zero-padded as
+needed).
+.Pp
+The
+.Fn gcvt
+function converts
+.Fa value
+to a NUL-terminated string similar to the %g
+.Xr printf 3
+format specifier and stores the result in
+.Fa buf .
+It produces
+.Fa ndigit
+significant digits similar to the %f
+.Xr printf 3
+format specifier where possible.
+If
+.Fa ndigit
+does allow sufficient precision, the result is stored in
+exponential notation similar to the %e
+.Xr printf 3
+format specifier.
+If
+.Fa value
+is less than zero,
+.Fa buf
+will be prefixed with a minus sign.
+A decimal point is included in the returned string if
+.Fa value
+is not a whole number.
+Unlike the
+.Fn ecvt
+and
+.Fn fcvt
+functions,
+.Fa buf
+is not zero-padded.
+.Sh RETURN VALUES
+The
+.Fn ecvt ,
+.Fn fcvt
+and
+.Fn gcvt
+functions return a NUL-terminated string representation of
+.Fa value .
+.Sh SEE ALSO
+.Xr printf 3 ,
+.Xr strtod 3
+.Sh STANDARDS
+The
+.Fn ecvt ,
+.Fn fcvt
+and
+.Fn gcvt
+functions conform to
+.St -p1003.1-2001 ;
+as of
+.St -p1003.1-2008
+they are no longer a part of the standard.
+.Sh CAVEATS
+The
+.Fn ecvt
+and
+.Fn fcvt
+functions return a pointer to internal storage space that will be
+overwritten by subsequent calls to either function.
+.Pp
+The maximum possible precision of the return value is limited by the
+precision of a double and may not be the same on all architectures.
+.Pp
+The
+.Xr snprintf 3
+function is preferred over these functions for new code.
diff --git a/src/lib/libc/stdlib/ecvt.c b/src/lib/libc/stdlib/ecvt.c
new file mode 100644
index 0000000000..4562e309e8
--- /dev/null
+++ b/src/lib/libc/stdlib/ecvt.c
@@ -0,0 +1,106 @@
+/*      $OpenBSD: ecvt.c,v 1.8 2013/11/01 19:05:11 guenther Exp $       */
+
+/*
+ * Copyright (c) 2002, 2006 Todd C. Miller <Todd.Miller@courtesan.com>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ *
+ * Sponsored in part by the Defense Advanced Research Projects
+ * Agency (DARPA) and Air Force Research Laboratory, Air Force
+ * Materiel Command, USAF, under agreement number F39502-99-1-0512.
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include "gdtoa.h"
+
+static char *__cvt(double, int, int *, int *, int, int);
+
+static char *
+__cvt(double value, int ndigit, int *decpt, int *sign, int fmode, int pad)
+{
+        static char *s;
+        char *p, *rve, c;
+        size_t siz;
+
+        if (ndigit == 0) {
+                *sign = value < 0.0;
+                *decpt = 0;
+                return ("");
+        }
+
+        if (s) {
+                free(s);
+                s = NULL;
+        }
+
+        if (ndigit < 0)
+                siz = -ndigit + 1;
+        else
+                siz = ndigit + 1;
+
+
+        /* __dtoa() doesn't allocate space for 0 so we do it by hand */
+        if (value == 0.0) {
+                *decpt = 1 - fmode;     /* 1 for 'e', 0 for 'f' */
+                *sign = 0;
+                if ((rve = s = (char *)malloc(siz)) == NULL)
+                        return(NULL);
+                *rve++ = '0';
+                *rve = '\0';
+        } else {
+                p = __dtoa(value, fmode + 2, ndigit, decpt, sign, &rve);
+                if (p == NULL)
+                        return (NULL);
+                if (*decpt == 9999) {
+                        /* Infinity or Nan, convert to inf or nan like printf */
+                        *decpt = 0;
+                        c = *p;
+                        __freedtoa(p);
+                        return(c == 'I' ? "inf" : "nan");
+                }
+                /* Make a local copy and adjust rve to be in terms of s */
+                if (pad && fmode)
+                        siz += *decpt;
+                if ((s = (char *)malloc(siz)) == NULL) {
+                        __freedtoa(p);
+                        return(NULL);
+                }
+                (void) strlcpy(s, p, siz);
+                rve = s + (rve - p);
+                __freedtoa(p);
+        }
+
+        /* Add trailing zeros */
+        if (pad) {
+                siz -= rve - s;
+                while (--siz)
+                        *rve++ = '0';
+                *rve = '\0';
+        }
+
+        return(s);
+}
+
+char *
+ecvt(double value, int ndigit, int *decpt, int *sign)
+{
+        return(__cvt(value, ndigit, decpt, sign, 0, 1));
+}
+
+char *
+fcvt(double value, int ndigit, int *decpt, int *sign)
+{
+        return(__cvt(value, ndigit, decpt, sign, 1, 1));
+}
diff --git a/src/lib/libc/stdlib/erand48.c b/src/lib/libc/stdlib/erand48.c
new file mode 100644
index 0000000000..2ffeaa6e71
--- /dev/null
+++ b/src/lib/libc/stdlib/erand48.c
@@ -0,0 +1,24 @@
+/*      $OpenBSD: erand48.c,v 1.3 2005/08/08 08:05:36 espie Exp $ */
+/*
+ * Copyright (c) 1993 Martin Birgmeier
+ * All rights reserved.
+ *
+ * You may redistribute unmodified or modified versions of this source
+ * code provided that the above copyright notice and this and the
+ * following conditions are retained.
+ *
+ * This software is provided ``as is'', and comes with no warranties
+ * of any kind. I shall in no event be liable for anything that happens
+ * to anyone/anything when using this software.
+ */
+
+#include "rand48.h"
+
+double
+erand48(unsigned short xseed[3])
+{
+        __dorand48(xseed);
+        return ldexp((double) xseed[0], -48) +
+               ldexp((double) xseed[1], -32) +
+               ldexp((double) xseed[2], -16);
+}
diff --git a/src/lib/libc/stdlib/exit.3 b/src/lib/libc/stdlib/exit.3
new file mode 100644
index 0000000000..26922ca7b8
--- /dev/null
+++ b/src/lib/libc/stdlib/exit.3
@@ -0,0 +1,102 @@
+.\" Copyright (c) 1990, 1991 The Regents of the University of California.
+.\" All rights reserved.
+.\"
+.\" This code is derived from software contributed to Berkeley by
+.\" the American National Standards Committee X3, on Information
+.\" Processing Systems.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\" 3. Neither the name of the University nor the names of its contributors
+.\"    may be used to endorse or promote products derived from this software
+.\"    without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.\"     $OpenBSD: exit.3,v 1.15 2013/07/17 05:42:11 schwarze Exp $
+.\"
+.Dd $Mdocdate: July 17 2013 $
+.Dt EXIT 3
+.Os
+.Sh NAME
+.Nm exit
+.Nd perform normal program termination
+.Sh SYNOPSIS
+.In stdlib.h
+.Ft void
+.Fn exit "int status"
+.Sh DESCRIPTION
+The
+.Fn exit
+function terminates a process.
+.Pp
+Before termination it performs the following functions in the
+order listed:
+.Bl -enum -offset indent
+.It
+Call the functions registered with the
+.Xr atexit 3
+function, in the reverse order of their registration.
+.It
+Flush all open output streams.
+.It
+Close all open streams.
+.It
+Unlink all files created with the
+.Xr tmpfile 3
+function.
+.El
+.Pp
+Following this,
+.Fn exit
+calls
+.Xr _exit 2 .
+Note that typically
+.Xr _exit 2
+only passes the lower 8 bits of
+.Fa status
+on to the parent, thus negative values have less meaning.
+.Sh RETURN VALUES
+The
+.Fn exit
+function never returns.
+.Sh SEE ALSO
+.Xr _exit 2 ,
+.Xr atexit 3 ,
+.Xr intro 3 ,
+.Xr sysexits 3 ,
+.Xr tmpfile 3
+.Sh STANDARDS
+The
+.Fn exit
+function conforms to
+.St -ansiC-99 .
+.Sh HISTORY
+An
+.Fn exit
+function first appeared as a system call in
+.At v1 .
+It has accepted the
+.Fa status
+argument since
+.At v2 .
+In
+.At v7 ,
+the bare system call was renamed to
+.Xr _exit 2 .
diff --git a/src/lib/libc/stdlib/exit.c b/src/lib/libc/stdlib/exit.c
new file mode 100644
index 0000000000..83fe3d2de5
--- /dev/null
+++ b/src/lib/libc/stdlib/exit.c
@@ -0,0 +1,59 @@
+/*      $OpenBSD: exit.c,v 1.12 2007/09/03 14:40:16 millert Exp $ */
+/*-
+ * Copyright (c) 1990 The Regents of the University of California.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <sys/types.h>
+#include <sys/mman.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include "atexit.h"
+#include "thread_private.h"
+
+/*
+ * This variable is zero until a process has created a thread.
+ * It is used to avoid calling locking functions in libc when they
+ * are not required. By default, libc is intended to be(come)
+ * thread-safe, but without a (significant) penalty to non-threaded
+ * processes.
+ */
+int     __isthreaded    = 0;
+
+/*
+ * Exit, flushing stdio buffers if necessary.
+ */
+void
+exit(int status)
+{
+        /*
+         * Call functions registered by atexit() or _cxa_atexit()
+         * (including the stdio cleanup routine) and then _exit().
+         */
+        __cxa_finalize(NULL);
+        _exit(status);
+}
diff --git a/src/lib/libc/stdlib/gcvt.c b/src/lib/libc/stdlib/gcvt.c
new file mode 100644
index 0000000000..f233332799
--- /dev/null
+++ b/src/lib/libc/stdlib/gcvt.c
@@ -0,0 +1,123 @@
+/*      $OpenBSD: gcvt.c,v 1.13 2013/11/01 19:05:11 guenther Exp $      */
+
+/*
+ * Copyright (c) 2002, 2003, 2006, 2010
+ *      Todd C. Miller <Todd.Miller@courtesan.com>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ *
+ * Sponsored in part by the Defense Advanced Research Projects
+ * Agency (DARPA) and Air Force Research Laboratory, Air Force
+ * Materiel Command, USAF, under agreement number F39502-99-1-0512.
+ */
+
+#include <locale.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include "gdtoa.h"
+
+#define DEFPREC 6
+
+char *
+gcvt(double value, int ndigit, char *buf)
+{
+        char *digits, *dst, *src;
+        int i, decpt, sign;
+        struct lconv *lconv;
+
+        lconv = localeconv();
+        if (ndigit <= 0) {
+                /* Match printf(3) behavior. */
+                ndigit = ndigit ? DEFPREC : 1;
+        }
+
+        digits = __dtoa(value, 2, ndigit, &decpt, &sign, NULL);
+        if (digits == NULL)
+                return (NULL);
+        if (decpt == 9999) {
+                /*
+                 * Infinity or NaN, convert to inf or nan with sign.
+                 * We can't infer buffer size based on ndigit.
+                 * We have to assume it is at least 5 chars.
+                 */
+                snprintf(buf, 5, "%s%s", sign ? "-" : "",
+                    *digits == 'I' ? "inf" : "nan");
+                __freedtoa(digits);
+                return (buf);
+        }
+
+        dst = buf;
+        if (sign)
+                *dst++ = '-';
+
+        /* Match printf(3) behavior for exponential vs. regular fomatting. */
+        if (decpt <= -4 || decpt > ndigit) {
+                /* exponential format (e.g. 1.2345e+13) */
+                if (--decpt < 0) {
+                        sign = 1;
+                        decpt = -decpt;
+                } else
+                        sign = 0;
+                src = digits;
+                *dst++ = *src++;
+                if (*src != '\0') {
+                        *dst++ = *lconv->decimal_point;
+                        do {
+                                *dst++ = *src++;
+                        } while (*src != '\0');
+                }
+                *dst++ = 'e';
+                if (sign)
+                        *dst++ = '-';
+                else
+                        *dst++ = '+';
+                if (decpt < 10) {
+                        *dst++ = '0';
+                        *dst++ = '0' + decpt;
+                        *dst = '\0';
+                } else {
+                        /* XXX - optimize */
+                        for (sign = decpt, i = 0; (sign /= 10) != 0; i++)
+                                continue;
+                        dst[i + 1] = '\0';
+                        while (decpt != 0) {
+                                dst[i--] = '0' + decpt % 10;
+                                decpt /= 10;
+                        }
+                }
+        } else {
+                /* standard format */
+                for (i = 0, src = digits; i < decpt; i++) {
+                        if (*src != '\0')
+                                *dst++ = *src++;
+                        else
+                                *dst++ = '0';
+                }
+                if (*src != '\0') {
+                        if (src == digits)
+                                *dst++ = '0';   /* zero before decimal point */
+                        *dst++ = *lconv->decimal_point;
+                        while (decpt < 0) {
+                                *dst++ = '0';
+                                decpt++;
+                        }
+                        for (i = decpt; digits[i] != '\0'; i++) {
+                                *dst++ = digits[i];
+                        }
+                }
+                *dst = '\0';
+        }
+        __freedtoa(digits);
+        return (buf);
+}
diff --git a/src/lib/libc/stdlib/getenv.3 b/src/lib/libc/stdlib/getenv.3
new file mode 100644
index 0000000000..5239d1b0d5
--- /dev/null
+++ b/src/lib/libc/stdlib/getenv.3
@@ -0,0 +1,175 @@
+.\" Copyright (c) 1988, 1991, 1993
+.\"    The Regents of the University of California.  All rights reserved.
+.\"
+.\" This code is derived from software contributed to Berkeley by
+.\" the American National Standards Committee X3, on Information
+.\" Processing Systems.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\" 3. Neither the name of the University nor the names of its contributors
+.\"    may be used to endorse or promote products derived from this software
+.\"    without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.\"     $OpenBSD: getenv.3,v 1.19 2013/06/05 03:39:23 tedu Exp $
+.\"
+.Dd $Mdocdate: June 5 2013 $
+.Dt GETENV 3
+.Os
+.Sh NAME
+.Nm getenv ,
+.Nm putenv ,
+.Nm setenv ,
+.Nm unsetenv
+.Nd environment variable functions
+.Sh SYNOPSIS
+.In stdlib.h
+.Ft char *
+.Fn getenv "const char *name"
+.Ft int
+.Fn setenv "const char *name" "const char *value" "int overwrite"
+.Ft int
+.Fn putenv "char *string"
+.Ft int
+.Fn unsetenv "const char *name"
+.Sh DESCRIPTION
+These functions set, unset, and fetch environment variables from the host
+.Em environment list .
+.Pp
+The
+.Fn getenv
+function obtains the current value of the environment variable
+.Fa name .
+If the variable
+.Fa name
+is not in the current environment, a null pointer is returned.
+.Pp
+The
+.Fn setenv
+function inserts or resets the environment variable
+.Fa name
+in the current environment list.
+If the variable
+.Fa name
+does not exist in the list, it is inserted with the given
+.Fa value .
+If the variable does exist, the argument
+.Fa overwrite
+is tested; if
+.Fa overwrite
+is zero, the variable is not reset, otherwise it is reset to the given
+.Fa value .
+.Pp
+The
+.Fn putenv
+function takes an argument of the form
+.Ar name Ns = Ns Ar value .
+The memory pointed to by
+.Ar string
+becomes part of the environment and must not be deallocated by the caller.
+If the variable already exists, it will be overwritten.
+A common source of bugs is to pass a
+.Ar string
+argument that is a locally scoped string buffer.
+This will result in corruption of the environment after leaving
+the scope in which the variable is defined.
+For this reason, the
+.Fn setenv
+function is preferred over
+.Fn putenv .
+.Pp
+The
+.Fn unsetenv
+function deletes all instances of the variable name pointed to by
+.Fa name
+from the list.
+.Sh RETURN VALUES
+These functions
+return zero if successful; otherwise the global variable
+.Va errno
+is set to indicate the error and \-1 is returned.
+.Pp
+If
+.Fn getenv
+is successful, the string returned should be considered read-only.
+.Sh ERRORS
+.Bl -tag -width Er
+.It Bq Er EINVAL
+The
+.Fn setenv
+or
+.Fn unsetenv
+function was passed an empty
+.Ar name
+or a NULL pointer, or was passed a
+.Ar name
+containing an
+.Sq =
+character.
+.Pp
+The
+.Fn putenv
+function was passed a
+.Ar string
+that did not contain an
+.Sq =
+character.
+.It Bq Er ENOMEM
+The
+.Fn setenv
+or
+.Fn putenv
+function failed because it was unable to allocate memory for the environment.
+.El
+.Sh SEE ALSO
+.Xr csh 1 ,
+.Xr sh 1 ,
+.Xr execve 2 ,
+.Xr environ 7
+.Sh STANDARDS
+The
+.Fn getenv
+function conforms to
+.St -ansiC .
+The
+.Fn putenv ,
+.Fn setenv ,
+and
+.Fn unsetenv
+functions conform to
+.St -p1003.1-2008 .
+.Sh HISTORY
+The function
+.Fn getenv
+appeared in
+.At v7
+and
+.Bx 3 .
+The functions
+.Fn setenv
+and
+.Fn unsetenv
+appeared in
+.Bx 4.3 Tahoe .
+The
+.Fn putenv
+function appeared in
+.Bx 4.3 Reno .
diff --git a/src/lib/libc/stdlib/getenv.c b/src/lib/libc/stdlib/getenv.c
new file mode 100644
index 0000000000..fd8482e9e3
--- /dev/null
+++ b/src/lib/libc/stdlib/getenv.c
@@ -0,0 +1,81 @@
+/*      $OpenBSD: getenv.c,v 1.10 2010/08/23 22:31:50 millert Exp $ */
+/*
+ * Copyright (c) 1987, 1993
+ *      The Regents of the University of California.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <stdlib.h>
+#include <string.h>
+
+char *__findenv(const char *name, int len, int *offset);
+
+/*
+ * __findenv --
+ *      Returns pointer to value associated with name, if any, else NULL.
+ *      Starts searching within the environmental array at offset.
+ *      Sets offset to be the offset of the name/value combination in the
+ *      environmental array, for use by putenv(3), setenv(3) and unsetenv(3).
+ *      Explicitly removes '=' in argument name.
+ *
+ *      This routine *should* be a static; don't use it.
+ */
+char *
+__findenv(const char *name, int len, int *offset)
+{
+        extern char **environ;
+        int i;
+        const char *np;
+        char **p, *cp;
+
+        if (name == NULL || environ == NULL)
+                return (NULL);
+        for (p = environ + *offset; (cp = *p) != NULL; ++p) {
+                for (np = name, i = len; i && *cp; i--)
+                        if (*cp++ != *np++)
+                                break;
+                if (i == 0 && *cp++ == '=') {
+                        *offset = p - environ;
+                        return (cp);
+                }
+        }
+        return (NULL);
+}
+
+/*
+ * getenv --
+ *      Returns ptr to value associated with name, if any, else NULL.
+ */
+char *
+getenv(const char *name)
+{
+        int offset = 0;
+        const char *np;
+
+        for (np = name; *np && *np != '='; ++np)
+                ;
+        return (__findenv(name, (int)(np - name), &offset));
+}
diff --git a/src/lib/libc/stdlib/getopt.3 b/src/lib/libc/stdlib/getopt.3
new file mode 100644
index 0000000000..6661e03841
--- /dev/null
+++ b/src/lib/libc/stdlib/getopt.3
@@ -0,0 +1,364 @@
+.\" Copyright (c) 1988, 1991, 1993
+.\"     The Regents of the University of California.  All rights reserved.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\" 3. Neither the name of the University nor the names of its contributors
+.\"    may be used to endorse or promote products derived from this software
+.\"    without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.\"     $OpenBSD: getopt.3,v 1.44 2014/01/21 03:15:45 schwarze Exp $
+.\"
+.Dd $Mdocdate: January 21 2014 $
+.Dt GETOPT 3
+.Os
+.Sh NAME
+.Nm getopt
+.Nd get option character from command line argument list
+.Sh SYNOPSIS
+.In unistd.h
+.Vt extern char *optarg;
+.Vt extern int   opterr;
+.Vt extern int   optind;
+.Vt extern int   optopt;
+.Vt extern int   optreset;
+.Ft int
+.Fn getopt "int argc" "char * const *argv" "const char *optstring"
+.Sh DESCRIPTION
+The
+.Fn getopt
+function incrementally parses a command line argument list
+.Fa argv
+and returns the next
+.Em known
+option character.
+An option character is
+.Em known
+if it has been specified in the string of accepted option characters,
+.Fa optstring .
+.Pp
+The option string
+.Fa optstring
+may contain the following elements: individual characters,
+characters followed by a colon, and characters followed by two colons.
+A character followed by a single colon indicates that an argument
+is to follow the option on the command line.
+Two colons indicates that the argument is optional \- this is an
+extension not covered by POSIX.
+For example, an option string
+.Qq x
+recognizes an option
+.Fl x ,
+and an option string
+.Qq Li x:
+recognizes an option and argument
+.Fl x Ar argument .
+It does not matter to
+.Fn getopt
+if a following argument has leading whitespace; except in the case where
+the argument is optional, denoted with two colons, no leading whitespace
+is permitted.
+.Pp
+On return from
+.Fn getopt ,
+.Va optarg
+points to an option argument, if it is anticipated,
+and the variable
+.Va optind
+contains the index to the next
+.Fa argv
+argument for a subsequent call
+to
+.Fn getopt .
+.Pp
+The variables
+.Va opterr
+and
+.Va optind
+are both initialized to 1.
+The
+.Va optind
+variable may be set to another value larger than 0 before a set of calls to
+.Fn getopt
+in order to skip over more or less
+.Fa argv
+entries.
+An
+.Va optind
+value of 0 is reserved for compatibility with GNU
+.Fn getopt .
+.Pp
+In order to use
+.Fn getopt
+to evaluate multiple sets of arguments, or to evaluate a single set of
+arguments multiple times,
+the variable
+.Va optreset
+must be set to 1 before the second and each additional set of calls to
+.Fn getopt ,
+and the variable
+.Va optind
+must be reinitialized.
+.Pp
+The
+.Fn getopt
+function returns \-1 when the argument list is exhausted.
+The interpretation of options in the argument list may be cancelled
+by the option
+.Ql --
+(double dash) which causes
+.Fn getopt
+to signal the end of argument processing and return \-1.
+When all options have been processed (i.e., up to the first non-option
+argument),
+.Fn getopt
+returns \-1.
+.Sh RETURN VALUES
+The
+.Fn getopt
+function returns the next known option character in
+.Fa optstring .
+If
+.Fn getopt
+encounters a character not found in
+.Fa optstring
+or if it detects a missing option argument,
+it returns
+.Sq \&?
+(question mark).
+If
+.Fa optstring
+has a leading
+.Sq \&:
+then a missing option argument causes
+.Sq \&:
+to be returned instead of
+.Sq \&? .
+In either case, the variable
+.Va optopt
+is set to the character that caused the error.
+The
+.Fn getopt
+function returns \-1 when the argument list is exhausted.
+.Sh EXAMPLES
+The following code accepts the options
+.Fl b
+and
+.Fl f Ar argument
+and adjusts
+.Va argc
+and
+.Va argv
+after option argument processing has completed.
+.Bd -literal -offset indent
+int bflag, ch, fd;
+
+bflag = 0;
+while ((ch = getopt(argc, argv, "bf:")) != -1) {
+        switch (ch) {
+        case 'b':
+                bflag = 1;
+                break;
+        case 'f':
+                if ((fd = open(optarg, O_RDONLY, 0)) == -1)
+                        err(1, "%s", optarg);
+                break;
+        default:
+                usage();
+                /* NOTREACHED */
+        }
+}
+argc -= optind;
+argv += optind;
+.Ed
+.Sh DIAGNOSTICS
+If the
+.Fn getopt
+function encounters a character not found in the string
+.Fa optstring
+or detects
+a missing option argument, it writes an error message to
+.Em stderr
+and returns
+.Ql \&? .
+Setting
+.Va opterr
+to a zero will disable these error messages.
+If
+.Fa optstring
+has a leading
+.Ql \&:
+then a missing option argument causes a
+.Ql \&:
+to be returned in addition to suppressing any error messages.
+.Pp
+Option arguments are allowed to begin with
+.Ql - ;
+this is reasonable but reduces the amount of error checking possible.
+.Sh SEE ALSO
+.Xr getopt 1 ,
+.Xr getopt_long 3 ,
+.Xr getsubopt 3
+.Sh STANDARDS
+The
+.Fn getopt
+function implements a superset of the functionality specified by
+.St -p1003.1 .
+.Pp
+The following extensions are supported:
+.Bl -tag -width "xxx"
+.It Li o
+The
+.Va optreset
+variable was added to make it possible to call the
+.Fn getopt
+function multiple times.
+.It Li o
+If the
+.Va optind
+variable is set to 0,
+.Fn getopt
+will behave as if the
+.Va optreset
+variable has been set.
+This is for compatibility with
+.Tn GNU
+.Fn getopt .
+New code should use
+.Va optreset
+instead.
+.It Li o
+If the first character of
+.Fa optstring
+is a plus sign
+.Pq Ql + ,
+it will be ignored.
+This is for compatibility with
+.Tn GNU
+.Fn getopt .
+.It Li o
+If the first character of
+.Fa optstring
+is a dash
+.Pq Ql - ,
+non-options will be returned as arguments to the option character
+.Ql \e1 .
+This is for compatibility with
+.Tn GNU
+.Fn getopt .
+.It Li o
+A single dash
+.Pq Ql -
+may be specified as a character in
+.Fa optstring ,
+however it should
+.Em never
+have an argument associated with it.
+This allows
+.Fn getopt
+to be used with programs that expect
+.Ql -
+as an option flag.
+This practice is wrong, and should not be used in any current development.
+It is provided for backward compatibility
+.Em only .
+Care should be taken not to use
+.Ql -
+as the first character in
+.Fa optstring
+to avoid a semantic conflict with
+.Tn GNU
+.Fn getopt
+semantics (see above).
+By default, a single dash causes
+.Fn getopt
+to return \-1.
+.El
+.Pp
+Historic
+.Bx
+versions of
+.Fn getopt
+set
+.Fa optopt
+to the last option character processed.
+However, this conflicts with
+.St -p1003.1
+which stipulates that
+.Fa optopt
+be set to the last character that caused an error.
+.Sh HISTORY
+The
+.Fn getopt
+function appeared in
+.Bx 4.3 .
+.Sh BUGS
+The
+.Fn getopt
+function was once specified to return
+.Dv EOF
+instead of \-1.
+This was changed by
+.St -p1003.2-92
+to decouple
+.Fn getopt
+from
+.In stdio.h .
+.Pp
+It is possible to handle digits as option letters.
+This allows
+.Fn getopt
+to be used with programs that expect a number
+.Pq Dq Li \-3
+as an option.
+This practice is wrong, and should not be used in any current development.
+It is provided for backward compatibility
+.Em only .
+The following code fragment works in most cases and can handle mixed
+number and letter arguments.
+.Bd -literal -offset indent
+int aflag = 0, bflag = 0, ch, lastch = '\e0';
+int length = -1, newarg = 1, prevoptind = 1;
+
+while ((ch = getopt(argc, argv, "0123456789ab")) != -1) {
+        switch (ch) {
+        case '0': case '1': case '2': case '3': case '4':
+        case '5': case '6': case '7': case '8': case '9':
+                if (newarg || !isdigit(lastch))
+                        length = 0;
+                else if (length > INT_MAX / 10)
+                        usage();
+                length = (length * 10) + (ch - '0');
+                break;
+        case 'a':
+                aflag = 1;
+                break;
+        case 'b':
+                bflag = 1;
+                break;
+        default:
+                usage();
+        }
+        lastch = ch;
+        newarg = optind != prevoptind;
+        prevoptind = optind;
+}
+.Ed
diff --git a/src/lib/libc/stdlib/getopt_long.3 b/src/lib/libc/stdlib/getopt_long.3
new file mode 100644
index 0000000000..a5973d6c99
--- /dev/null
+++ b/src/lib/libc/stdlib/getopt_long.3
@@ -0,0 +1,445 @@
+.\"     $OpenBSD: getopt_long.3,v 1.20 2013/06/05 03:39:23 tedu Exp $
+.\"     $NetBSD: getopt_long.3,v 1.11 2002/10/02 10:54:19 wiz Exp $
+.\"
+.\" Copyright (c) 1988, 1991, 1993
+.\"     The Regents of the University of California.  All rights reserved.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\" 3. Neither the name of the University nor the names of its contributors
+.\"    may be used to endorse or promote products derived from this software
+.\"    without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.\"     @(#)getopt.3    8.5 (Berkeley) 4/27/95
+.\"
+.Dd $Mdocdate: June 5 2013 $
+.Dt GETOPT_LONG 3
+.Os
+.Sh NAME
+.Nm getopt_long ,
+.Nm getopt_long_only
+.Nd get long options from command line argument list
+.Sh SYNOPSIS
+.In getopt.h
+.Vt extern char *optarg;
+.Vt extern int optind;
+.Vt extern int optopt;
+.Vt extern int opterr;
+.Vt extern int optreset;
+.Ft int
+.Fn getopt_long "int argc" "char * const *argv" "const char *optstring" "const struct option *longopts" "int *longindex"
+.Ft int
+.Fn getopt_long_only "int argc" "char * const *argv" "const char *optstring" "const struct option *longopts" "int *longindex"
+.Sh DESCRIPTION
+The
+.Fn getopt_long
+function is similar to
+.Xr getopt 3
+but it accepts options in two forms: words and characters.
+The
+.Fn getopt_long
+function provides a superset of the functionality of
+.Xr getopt 3 .
+.Fn getopt_long
+can be used in two ways.
+In the first way, every long option understood by the program has a
+corresponding short option, and the option structure is only used to
+translate from long options to short options.
+When used in this fashion,
+.Fn getopt_long
+behaves identically to
+.Xr getopt 3 .
+This is a good way to add long option processing to an existing program
+with the minimum of rewriting.
+.Pp
+In the second mechanism, a long option sets a flag in the
+.Fa option
+structure passed, or will store a pointer to the command line argument
+in the
+.Fa option
+structure passed to it for options that take arguments.
+Additionally, the long option's argument may be specified as a single
+argument with an equal sign, e.g.
+.Bd -literal -offset indent
+$ myprogram --myoption=somevalue
+.Ed
+.Pp
+When a long option is processed, the call to
+.Fn getopt_long
+will return 0.
+For this reason, long option processing without
+shortcuts is not backwards compatible with
+.Xr getopt 3 .
+.Pp
+It is possible to combine these methods, providing for long options
+processing with short option equivalents for some options.
+Less frequently used options would be processed as long options only.
+.Pp
+Abbreviated long option names are accepted when
+.Fn getopt_long
+processes long options if the abbreviation is unique.
+An exact match is always preferred for a defined long option.
+.Pp
+The
+.Fn getopt_long
+call requires an array to be initialized describing the long
+options.
+Each element of the array is a structure:
+.Bd -literal -offset indent
+struct option {
+        char *name;
+        int has_arg;
+        int *flag;
+        int val;
+};
+.Ed
+.Pp
+The
+.Fa name
+field should contain the option name without the leading double dash.
+.Pp
+The
+.Fa has_arg
+field should be one of:
+.Pp
+.Bl -tag -width "optional_argument" -compact -offset indent
+.It Dv no_argument
+no argument to the option is expected.
+.It Dv required_argument
+an argument to the option is required.
+.It Dv optional_argument
+an argument to the option may be presented.
+.El
+.Pp
+If
+.Fa flag
+is not
+.Dv NULL ,
+then the integer pointed to by it will be set to the value in the
+.Fa val
+field.
+If the
+.Fa flag
+field is
+.Dv NULL ,
+then the
+.Fa val
+field will be returned.
+Setting
+.Fa flag
+to
+.Dv NULL
+and setting
+.Fa val
+to the corresponding short option will make this function act just
+like
+.Xr getopt 3 .
+.Pp
+If the
+.Fa longindex
+field is not
+.Dv NULL ,
+then the integer pointed to by it will be set to the index of the long
+option relative to
+.Fa longopts .
+.Pp
+The last element of the
+.Fa longopts
+array has to be filled with zeroes.
+.Pp
+The
+.Fn getopt_long_only
+function behaves identically to
+.Fn getopt_long
+with the exception that long options may start with
+.Sq -
+in addition to
+.Sq -- .
+If an option starting with
+.Sq -
+does not match a long option but does match a single-character option,
+the single-character option is returned.
+.Sh RETURN VALUES
+If the
+.Fa flag
+field in
+.Li struct option
+is
+.Dv NULL ,
+.Fn getopt_long
+and
+.Fn getopt_long_only
+return the value specified in the
+.Fa val
+field, which is usually just the corresponding short option.
+If
+.Fa flag
+is not
+.Dv NULL ,
+these functions return 0 and store
+.Fa val
+in the location pointed to by
+.Fa flag .
+These functions return
+.Sq \&:
+if there was a missing option argument,
+.Sq \&?
+if the user specified an unknown or ambiguous option, and
+\-1 when the argument list has been exhausted.
+.Sh IMPLEMENTATION DIFFERENCES
+This section describes differences to the GNU implementation
+found in glibc-2.1.3:
+.Bl -bullet
+.It
+handling of
+.Ql -
+within the option string (not the first character):
+.Bl -tag -width "OpenBSD"
+.It GNU
+treats a
+.Ql -
+on the command line as a non-argument.
+.It OpenBSD
+a
+.Ql -
+within the option string matches a
+.Ql -
+(single dash) on the command line.
+This functionality is provided for backward compatibility with
+programs, such as
+.Xr su 1 ,
+that use
+.Ql -
+as an option flag.
+This practice is wrong, and should not be used in any current development.
+.El
+.It
+handling of
+.Ql ::
+in the option string in the presence of
+.Ev POSIXLY_CORRECT :
+.Bl -tag -width "OpenBSD"
+.It Both
+GNU and
+.Ox
+ignore
+.Ev POSIXLY_CORRECT
+here and take
+.Ql ::
+to mean the preceding option takes an optional argument.
+.El
+.It
+return value in case of missing argument if first character
+(after
+.Ql +
+or
+.Ql - )
+in the option string is not
+.Ql \&: :
+.Bl -tag -width "OpenBSD"
+.It GNU
+returns
+.Ql \&?
+.It OpenBSD
+returns
+.Ql \&:
+(since
+.Ox Ns 's
+.Xr getopt 3
+does).
+.El
+.It
+handling of
+.Ql --a
+in
+.Xr getopt 3 :
+.Bl -tag -width "OpenBSD"
+.It GNU
+parses this as option
+.Ql - ,
+option
+.Ql a .
+.It OpenBSD
+parses this as
+.Ql -- ,
+and returns \-1 (ignoring the
+.Ql a )
+(because the original
+.Fn getopt
+did.)
+.El
+.It
+setting of
+.Va optopt
+for long options with
+.Va flag
+.No non- Ns Dv NULL :
+.Bl -tag -width "OpenBSD"
+.It GNU
+sets
+.Va optopt
+to
+.Va val .
+.It OpenBSD
+sets
+.Va optopt
+to 0 (since
+.Va val
+would never be returned).
+.El
+.It
+handling of
+.Ql -W
+with
+.Ql W;
+in the option string in
+.Xr getopt 3
+(not
+.Fn getopt_long ) :
+.Bl -tag -width "OpenBSD"
+.It GNU
+causes a segmentation fault.
+.It OpenBSD
+no special handling is done;
+.Ql W;
+is interpreted as two separate options, neither of which take an argument.
+.El
+.It
+setting of
+.Va optarg
+for long options without an argument that are invoked via
+.Ql -W
+(with
+.Ql W;
+in the option string):
+.Bl -tag -width "OpenBSD"
+.It GNU
+sets
+.Va optarg
+to the option name (the argument of
+.Ql -W ) .
+.It OpenBSD
+sets
+.Va optarg
+to
+.Dv NULL
+(the argument of the long option).
+.El
+.It
+handling of
+.Ql -W
+with an argument that is not (a prefix to) a known long option
+(with
+.Ql W;
+in the option string):
+.Bl -tag -width "OpenBSD"
+.It GNU
+returns
+.Ql -W
+with
+.Va optarg
+set to the unknown option.
+.It OpenBSD
+treats this as an error (unknown option) and returns
+.Ql \&?
+with
+.Va optopt
+set to 0 and
+.Va optarg
+set to
+.Dv NULL
+(as GNU's man page documents).
+.El
+.It
+The error messages are different.
+.It
+.Ox
+does not permute the argument vector at the same points in
+the calling sequence as GNU does.
+The aspects normally used by the caller
+(ordering after \-1 is returned, value of
+.Va optind
+relative to current positions) are the same, though.
+(We do fewer variable swaps.)
+.El
+.Sh ENVIRONMENT
+.Bl -tag -width Ev
+.It Ev POSIXLY_CORRECT
+If set, option processing stops when the first non-option is found and
+a leading
+.Sq +
+in the
+.Ar optstring
+is ignored.
+.El
+.Sh EXAMPLES
+.Bd -literal
+int bflag, ch, fd;
+int daggerset;
+
+/* options descriptor */
+static struct option longopts[] = {
+        { "buffy",      no_argument,            NULL,           'b' },
+        { "fluoride",   required_argument,      NULL,           'f' },
+        { "daggerset",  no_argument,            &daggerset,     1 },
+        { NULL,         0,                      NULL,           0 }
+};
+
+bflag = 0;
+while ((ch = getopt_long(argc, argv, "bf:", longopts, NULL)) != -1)
+        switch (ch) {
+        case 'b':
+                bflag = 1;
+                break;
+        case 'f':
+                if ((fd = open(optarg, O_RDONLY, 0)) == -1)
+                        err(1, "unable to open %s", optarg);
+                break;
+        case 0:
+                if (daggerset)
+                        fprintf(stderr, "Buffy will use her dagger to "
+                            "apply fluoride to dracula's teeth\en");
+                break;
+        default:
+                usage();
+                /* NOTREACHED */
+        }
+argc -= optind;
+argv += optind;
+.Ed
+.Sh SEE ALSO
+.Xr getopt 3
+.Sh HISTORY
+The
+.Fn getopt_long
+and
+.Fn getopt_long_only
+functions first appeared in GNU libiberty.
+This implementation first appeared in
+.Ox 3.3 .
+.Sh BUGS
+The
+.Ar argv
+argument is not really
+.Dv const
+as its elements may be permuted (unless
+.Ev POSIXLY_CORRECT
+is set).
diff --git a/src/lib/libc/stdlib/getopt_long.c b/src/lib/libc/stdlib/getopt_long.c
new file mode 100644
index 0000000000..f46cd8bf4e
--- /dev/null
+++ b/src/lib/libc/stdlib/getopt_long.c
@@ -0,0 +1,518 @@
+/*      $OpenBSD: getopt_long.c,v 1.26 2013/06/08 22:47:56 millert Exp $        */
+/*      $NetBSD: getopt_long.c,v 1.15 2002/01/31 22:43:40 tv Exp $      */
+
+/*
+ * Copyright (c) 2002 Todd C. Miller <Todd.Miller@courtesan.com>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ *
+ * Sponsored in part by the Defense Advanced Research Projects
+ * Agency (DARPA) and Air Force Research Laboratory, Air Force
+ * Materiel Command, USAF, under agreement number F39502-99-1-0512.
+ */
+/*-
+ * Copyright (c) 2000 The NetBSD Foundation, Inc.
+ * All rights reserved.
+ *
+ * This code is derived from software contributed to The NetBSD Foundation
+ * by Dieter Baron and Thomas Klausner.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
+ * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
+ * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <err.h>
+#include <errno.h>
+#include <getopt.h>
+#include <stdlib.h>
+#include <string.h>
+
+int     opterr = 1;             /* if error message should be printed */
+int     optind = 1;             /* index into parent argv vector */
+int     optopt = '?';           /* character checked for validity */
+int     optreset;               /* reset getopt */
+char    *optarg;                /* argument associated with option */
+
+#define PRINT_ERROR     ((opterr) && (*options != ':'))
+
+#define FLAG_PERMUTE    0x01    /* permute non-options to the end of argv */
+#define FLAG_ALLARGS    0x02    /* treat non-options as args to option "-1" */
+#define FLAG_LONGONLY   0x04    /* operate as getopt_long_only */
+
+/* return values */
+#define BADCH           (int)'?'
+#define BADARG          ((*options == ':') ? (int)':' : (int)'?')
+#define INORDER         (int)1
+
+#define EMSG            ""
+
+static int getopt_internal(int, char * const *, const char *,
+                           const struct option *, int *, int);
+static int parse_long_options(char * const *, const char *,
+                              const struct option *, int *, int, int);
+static int gcd(int, int);
+static void permute_args(int, int, int, char * const *);
+
+static char *place = EMSG; /* option letter processing */
+
+/* XXX: set optreset to 1 rather than these two */
+static int nonopt_start = -1; /* first non option argument (for permute) */
+static int nonopt_end = -1;   /* first option after non options (for permute) */
+
+/* Error messages */
+static const char recargchar[] = "option requires an argument -- %c";
+static const char recargstring[] = "option requires an argument -- %s";
+static const char ambig[] = "ambiguous option -- %.*s";
+static const char noarg[] = "option doesn't take an argument -- %.*s";
+static const char illoptchar[] = "unknown option -- %c";
+static const char illoptstring[] = "unknown option -- %s";
+
+/*
+ * Compute the greatest common divisor of a and b.
+ */
+static int
+gcd(int a, int b)
+{
+        int c;
+
+        c = a % b;
+        while (c != 0) {
+                a = b;
+                b = c;
+                c = a % b;
+        }
+
+        return (b);
+}
+
+/*
+ * Exchange the block from nonopt_start to nonopt_end with the block
+ * from nonopt_end to opt_end (keeping the same order of arguments
+ * in each block).
+ */
+static void
+permute_args(int panonopt_start, int panonopt_end, int opt_end,
+        char * const *nargv)
+{
+        int cstart, cyclelen, i, j, ncycle, nnonopts, nopts, pos;
+        char *swap;
+
+        /*
+         * compute lengths of blocks and number and size of cycles
+         */
+        nnonopts = panonopt_end - panonopt_start;
+        nopts = opt_end - panonopt_end;
+        ncycle = gcd(nnonopts, nopts);
+        cyclelen = (opt_end - panonopt_start) / ncycle;
+
+        for (i = 0; i < ncycle; i++) {
+                cstart = panonopt_end+i;
+                pos = cstart;
+                for (j = 0; j < cyclelen; j++) {
+                        if (pos >= panonopt_end)
+                                pos -= nnonopts;
+                        else
+                                pos += nopts;
+                        swap = nargv[pos];
+                        /* LINTED const cast */
+                        ((char **) nargv)[pos] = nargv[cstart];
+                        /* LINTED const cast */
+                        ((char **)nargv)[cstart] = swap;
+                }
+        }
+}
+
+/*
+ * parse_long_options --
+ *      Parse long options in argc/argv argument vector.
+ * Returns -1 if short_too is set and the option does not match long_options.
+ */
+static int
+parse_long_options(char * const *nargv, const char *options,
+        const struct option *long_options, int *idx, int short_too, int flags)
+{
+        char *current_argv, *has_equal;
+        size_t current_argv_len;
+        int i, match, exact_match, second_partial_match;
+
+        current_argv = place;
+        match = -1;
+        exact_match = 0;
+        second_partial_match = 0;
+
+        optind++;
+
+        if ((has_equal = strchr(current_argv, '=')) != NULL) {
+                /* argument found (--option=arg) */
+                current_argv_len = has_equal - current_argv;
+                has_equal++;
+        } else
+                current_argv_len = strlen(current_argv);
+
+        for (i = 0; long_options[i].name; i++) {
+                /* find matching long option */
+                if (strncmp(current_argv, long_options[i].name,
+                    current_argv_len))
+                        continue;
+
+                if (strlen(long_options[i].name) == current_argv_len) {
+                        /* exact match */
+                        match = i;
+                        exact_match = 1;
+                        break;
+                }
+                /*
+                 * If this is a known short option, don't allow
+                 * a partial match of a single character.
+                 */
+                if (short_too && current_argv_len == 1)
+                        continue;
+
+                if (match == -1)        /* first partial match */
+                        match = i;
+                else if ((flags & FLAG_LONGONLY) ||
+                    long_options[i].has_arg != long_options[match].has_arg ||
+                    long_options[i].flag != long_options[match].flag ||
+                    long_options[i].val != long_options[match].val)
+                        second_partial_match = 1;
+        }
+        if (!exact_match && second_partial_match) {
+                /* ambiguous abbreviation */
+                if (PRINT_ERROR)
+                        warnx(ambig, (int)current_argv_len, current_argv);
+                optopt = 0;
+                return (BADCH);
+        }
+        if (match != -1) {              /* option found */
+                if (long_options[match].has_arg == no_argument
+                    && has_equal) {
+                        if (PRINT_ERROR)
+                                warnx(noarg, (int)current_argv_len,
+                                     current_argv);
+                        /*
+                         * XXX: GNU sets optopt to val regardless of flag
+                         */
+                        if (long_options[match].flag == NULL)
+                                optopt = long_options[match].val;
+                        else
+                                optopt = 0;
+                        return (BADARG);
+                }
+                if (long_options[match].has_arg == required_argument ||
+                    long_options[match].has_arg == optional_argument) {
+                        if (has_equal)
+                                optarg = has_equal;
+                        else if (long_options[match].has_arg ==
+                            required_argument) {
+                                /*
+                                 * optional argument doesn't use next nargv
+                                 */
+                                optarg = nargv[optind++];
+                        }
+                }
+                if ((long_options[match].has_arg == required_argument)
+                    && (optarg == NULL)) {
+                        /*
+                         * Missing argument; leading ':' indicates no error
+                         * should be generated.
+                         */
+                        if (PRINT_ERROR)
+                                warnx(recargstring,
+                                    current_argv);
+                        /*
+                         * XXX: GNU sets optopt to val regardless of flag
+                         */
+                        if (long_options[match].flag == NULL)
+                                optopt = long_options[match].val;
+                        else
+                                optopt = 0;
+                        --optind;
+                        return (BADARG);
+                }
+        } else {                        /* unknown option */
+                if (short_too) {
+                        --optind;
+                        return (-1);
+                }
+                if (PRINT_ERROR)
+                        warnx(illoptstring, current_argv);
+                optopt = 0;
+                return (BADCH);
+        }
+        if (idx)
+                *idx = match;
+        if (long_options[match].flag) {
+                *long_options[match].flag = long_options[match].val;
+                return (0);
+        } else
+                return (long_options[match].val);
+}
+
+/*
+ * getopt_internal --
+ *      Parse argc/argv argument vector.  Called by user level routines.
+ */
+static int
+getopt_internal(int nargc, char * const *nargv, const char *options,
+        const struct option *long_options, int *idx, int flags)
+{
+        char *oli;                              /* option letter list index */
+        int optchar, short_too;
+        static int posixly_correct = -1;
+
+        if (options == NULL)
+                return (-1);
+
+        /*
+         * XXX Some GNU programs (like cvs) set optind to 0 instead of
+         * XXX using optreset.  Work around this braindamage.
+         */
+        if (optind == 0)
+                optind = optreset = 1;
+
+        /*
+         * Disable GNU extensions if POSIXLY_CORRECT is set or options
+         * string begins with a '+'.
+         */
+        if (posixly_correct == -1 || optreset)
+                posixly_correct = (getenv("POSIXLY_CORRECT") != NULL);
+        if (*options == '-')
+                flags |= FLAG_ALLARGS;
+        else if (posixly_correct || *options == '+')
+                flags &= ~FLAG_PERMUTE;
+        if (*options == '+' || *options == '-')
+                options++;
+
+        optarg = NULL;
+        if (optreset)
+                nonopt_start = nonopt_end = -1;
+start:
+        if (optreset || !*place) {              /* update scanning pointer */
+                optreset = 0;
+                if (optind >= nargc) {          /* end of argument vector */
+                        place = EMSG;
+                        if (nonopt_end != -1) {
+                                /* do permutation, if we have to */
+                                permute_args(nonopt_start, nonopt_end,
+                                    optind, nargv);
+                                optind -= nonopt_end - nonopt_start;
+                        }
+                        else if (nonopt_start != -1) {
+                                /*
+                                 * If we skipped non-options, set optind
+                                 * to the first of them.
+                                 */
+                                optind = nonopt_start;
+                        }
+                        nonopt_start = nonopt_end = -1;
+                        return (-1);
+                }
+                if (*(place = nargv[optind]) != '-' ||
+                    (place[1] == '\0' && strchr(options, '-') == NULL)) {
+                        place = EMSG;           /* found non-option */
+                        if (flags & FLAG_ALLARGS) {
+                                /*
+                                 * GNU extension:
+                                 * return non-option as argument to option 1
+                                 */
+                                optarg = nargv[optind++];
+                                return (INORDER);
+                        }
+                        if (!(flags & FLAG_PERMUTE)) {
+                                /*
+                                 * If no permutation wanted, stop parsing
+                                 * at first non-option.
+                                 */
+                                return (-1);
+                        }
+                        /* do permutation */
+                        if (nonopt_start == -1)
+                                nonopt_start = optind;
+                        else if (nonopt_end != -1) {
+                                permute_args(nonopt_start, nonopt_end,
+                                    optind, nargv);
+                                nonopt_start = optind -
+                                    (nonopt_end - nonopt_start);
+                                nonopt_end = -1;
+                        }
+                        optind++;
+                        /* process next argument */
+                        goto start;
+                }
+                if (nonopt_start != -1 && nonopt_end == -1)
+                        nonopt_end = optind;
+
+                /*
+                 * If we have "-" do nothing, if "--" we are done.
+                 */
+                if (place[1] != '\0' && *++place == '-' && place[1] == '\0') {
+                        optind++;
+                        place = EMSG;
+                        /*
+                         * We found an option (--), so if we skipped
+                         * non-options, we have to permute.
+                         */
+                        if (nonopt_end != -1) {
+                                permute_args(nonopt_start, nonopt_end,
+                                    optind, nargv);
+                                optind -= nonopt_end - nonopt_start;
+                        }
+                        nonopt_start = nonopt_end = -1;
+                        return (-1);
+                }
+        }
+
+        /*
+         * Check long options if:
+         *  1) we were passed some
+         *  2) the arg is not just "-"
+         *  3) either the arg starts with -- we are getopt_long_only()
+         */
+        if (long_options != NULL && place != nargv[optind] &&
+            (*place == '-' || (flags & FLAG_LONGONLY))) {
+                short_too = 0;
+                if (*place == '-')
+                        place++;                /* --foo long option */
+                else if (*place != ':' && strchr(options, *place) != NULL)
+                        short_too = 1;          /* could be short option too */
+
+                optchar = parse_long_options(nargv, options, long_options,
+                    idx, short_too, flags);
+                if (optchar != -1) {
+                        place = EMSG;
+                        return (optchar);
+                }
+        }
+
+        if ((optchar = (int)*place++) == (int)':' ||
+            (optchar == (int)'-' && *place != '\0') ||
+            (oli = strchr(options, optchar)) == NULL) {
+                /*
+                 * If the user specified "-" and  '-' isn't listed in
+                 * options, return -1 (non-option) as per POSIX.
+                 * Otherwise, it is an unknown option character (or ':').
+                 */
+                if (optchar == (int)'-' && *place == '\0')
+                        return (-1);
+                if (!*place)
+                        ++optind;
+                if (PRINT_ERROR)
+                        warnx(illoptchar, optchar);
+                optopt = optchar;
+                return (BADCH);
+        }
+        if (long_options != NULL && optchar == 'W' && oli[1] == ';') {
+                /* -W long-option */
+                if (*place)                     /* no space */
+                        /* NOTHING */;
+                else if (++optind >= nargc) {   /* no arg */
+                        place = EMSG;
+                        if (PRINT_ERROR)
+                                warnx(recargchar, optchar);
+                        optopt = optchar;
+                        return (BADARG);
+                } else                          /* white space */
+                        place = nargv[optind];
+                optchar = parse_long_options(nargv, options, long_options,
+                    idx, 0, flags);
+                place = EMSG;
+                return (optchar);
+        }
+        if (*++oli != ':') {                    /* doesn't take argument */
+                if (!*place)
+                        ++optind;
+        } else {                                /* takes (optional) argument */
+                optarg = NULL;
+                if (*place)                     /* no white space */
+                        optarg = place;
+                else if (oli[1] != ':') {       /* arg not optional */
+                        if (++optind >= nargc) {        /* no arg */
+                                place = EMSG;
+                                if (PRINT_ERROR)
+                                        warnx(recargchar, optchar);
+                                optopt = optchar;
+                                return (BADARG);
+                        } else
+                                optarg = nargv[optind];
+                }
+                place = EMSG;
+                ++optind;
+        }
+        /* dump back option letter */
+        return (optchar);
+}
+
+/*
+ * getopt --
+ *      Parse argc/argv argument vector.
+ *
+ * [eventually this will replace the BSD getopt]
+ */
+int
+getopt(int nargc, char * const *nargv, const char *options)
+{
+
+        /*
+         * We don't pass FLAG_PERMUTE to getopt_internal() since
+         * the BSD getopt(3) (unlike GNU) has never done this.
+         *
+         * Furthermore, since many privileged programs call getopt()
+         * before dropping privileges it makes sense to keep things
+         * as simple (and bug-free) as possible.
+         */
+        return (getopt_internal(nargc, nargv, options, NULL, NULL, 0));
+}
+
+/*
+ * getopt_long --
+ *      Parse argc/argv argument vector.
+ */
+int
+getopt_long(int nargc, char * const *nargv, const char *options,
+    const struct option *long_options, int *idx)
+{
+
+        return (getopt_internal(nargc, nargv, options, long_options, idx,
+            FLAG_PERMUTE));
+}
+
+/*
+ * getopt_long_only --
+ *      Parse argc/argv argument vector.
+ */
+int
+getopt_long_only(int nargc, char * const *nargv, const char *options,
+    const struct option *long_options, int *idx)
+{
+
+        return (getopt_internal(nargc, nargv, options, long_options, idx,
+            FLAG_PERMUTE|FLAG_LONGONLY));
+}
diff --git a/src/lib/libc/stdlib/getsubopt.3 b/src/lib/libc/stdlib/getsubopt.3
new file mode 100644
index 0000000000..ef813430de
--- /dev/null
+++ b/src/lib/libc/stdlib/getsubopt.3
@@ -0,0 +1,145 @@
+.\" $OpenBSD: getsubopt.3,v 1.13 2013/06/05 03:39:23 tedu Exp $
+.\"
+.\" Copyright (c) 1990, 1991, 1993
+.\"     The Regents of the University of California.  All rights reserved.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\" 3. Neither the name of the University nor the names of its contributors
+.\"    may be used to endorse or promote products derived from this software
+.\"    without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.\"     @(#)getsubopt.3 8.1 (Berkeley) 6/9/93
+.\"
+.Dd $Mdocdate: June 5 2013 $
+.Dt GETSUBOPT 3
+.Os
+.Sh NAME
+.Nm getsubopt
+.Nd get sub options from an argument
+.Sh SYNOPSIS
+.In stdlib.h
+.Vt extern char *suboptarg;
+.Ft int
+.Fn getsubopt "char **optionp" "char * const *tokens" "char **valuep"
+.Sh DESCRIPTION
+The
+.Fn getsubopt
+function parses a string containing tokens delimited by one or more
+tab, space, or comma
+.Pq Ql \&,
+characters.
+It is intended for use in parsing groups of option arguments provided
+as part of a utility command line.
+.Pp
+The argument
+.Fa optionp
+is a pointer to a pointer to the string.
+The argument
+.Fa tokens
+is a pointer to a null-terminated array of pointers to strings.
+.Pp
+The
+.Fn getsubopt
+function returns the zero-based offset of the pointer in the
+.Fa tokens
+array referencing a string which matches the first token
+in the string, or \-1 if the string contains no tokens or
+.Fa tokens
+does not contain a matching string.
+.Pp
+If the token is of the form
+.Ar name Ns = Ns Ar value ,
+the location referenced by
+.Fa valuep
+will be set to point to the start of the
+.Dq value
+portion of the token.
+.Pp
+On return from
+.Fn getsubopt ,
+.Fa optionp
+will be set to point to the start of the next token in the string,
+or the NUL at the end of the string if no more tokens are present.
+The external variable
+.Fa suboptarg
+will be set to point to the start of the current token, or
+.Dv NULL
+if no tokens were present.
+The argument
+.Fa valuep
+will be set to point to the value portion of the token, or
+.Dv NULL
+if no value portion was present.
+.Sh EXAMPLES
+.Bd -literal
+char *tokens[] = {
+        #define ONE     0
+                "one",
+        #define TWO     1
+                "two",
+        NULL
+};
+
+\&...
+
+extern char *optarg, *suboptarg;
+char *options, *value;
+
+while ((ch = getopt(argc, argv, "ab:")) != -1) {
+        switch (ch) {
+        case 'a':
+                /* process ``a'' option */
+                break;
+        case 'b':
+                options = optarg;
+                while (*options) {
+                        switch (getsubopt(&options, tokens, &value)) {
+                        case ONE:
+                                /* process ``one'' sub option */
+                                break;
+                        case TWO:
+                                /* process ``two'' sub option */
+                                if (!value)
+                                        error("no value for two");
+                                i = atoi(value);
+                                break;
+                        case -1:
+                                if (suboptarg)
+                                        error("illegal sub option %s",
+                                          suboptarg);
+                                else
+                                        error("missing sub option");
+                                break;
+                        }
+                }
+                break;
+        }
+}
+.Ed
+.Sh SEE ALSO
+.Xr getopt 3 ,
+.Xr strsep 3
+.Sh HISTORY
+The
+.Fn getsubopt
+function first appeared in
+.Bx 4.4 .
diff --git a/src/lib/libc/stdlib/getsubopt.c b/src/lib/libc/stdlib/getsubopt.c
new file mode 100644
index 0000000000..735c85ba8a
--- /dev/null
+++ b/src/lib/libc/stdlib/getsubopt.c
@@ -0,0 +1,92 @@
+/*      $OpenBSD: getsubopt.c,v 1.4 2005/08/08 08:05:36 espie Exp $     */
+
+/*-
+ * Copyright (c) 1990, 1993
+ *      The Regents of the University of California.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <unistd.h>
+#include <stdlib.h>
+#include <string.h>
+
+/*
+ * The SVID interface to getsubopt provides no way of figuring out which
+ * part of the suboptions list wasn't matched.  This makes error messages
+ * tricky...  The extern variable suboptarg is a pointer to the token
+ * which didn't match.
+ */
+char *suboptarg;
+
+int
+getsubopt(char **optionp, char * const *tokens, char **valuep)
+{
+        int cnt;
+        char *p;
+
+        suboptarg = *valuep = NULL;
+
+        if (!optionp || !*optionp)
+                return(-1);
+
+        /* skip leading white-space, commas */
+        for (p = *optionp; *p && (*p == ',' || *p == ' ' || *p == '\t'); ++p);
+
+        if (!*p) {
+                *optionp = p;
+                return(-1);
+        }
+
+        /* save the start of the token, and skip the rest of the token. */
+        for (suboptarg = p;
+            *++p && *p != ',' && *p != '=' && *p != ' ' && *p != '\t';);
+
+        if (*p) {
+                /*
+                 * If there's an equals sign, set the value pointer, and
+                 * skip over the value part of the token.  Terminate the
+                 * token.
+                 */
+                if (*p == '=') {
+                        *p = '\0';
+                        for (*valuep = ++p;
+                            *p && *p != ',' && *p != ' ' && *p != '\t'; ++p);
+                        if (*p) 
+                                *p++ = '\0';
+                } else
+                        *p++ = '\0';
+                /* Skip any whitespace or commas after this token. */
+                for (; *p && (*p == ',' || *p == ' ' || *p == '\t'); ++p);
+        }
+
+        /* set optionp for next round. */
+        *optionp = p;
+
+        for (cnt = 0; *tokens; ++tokens, ++cnt)
+                if (!strcmp(suboptarg, *tokens))
+                        return(cnt);
+        return(-1);
+}
diff --git a/src/lib/libc/stdlib/hcreate.3 b/src/lib/libc/stdlib/hcreate.3
new file mode 100644
index 0000000000..ea264b57c8
--- /dev/null
+++ b/src/lib/libc/stdlib/hcreate.3
@@ -0,0 +1,239 @@
+.\"     $OpenBSD: hcreate.3,v 1.6 2010/07/28 09:00:20 ray Exp $
+.\"     $NetBSD: hcreate.3,v 1.8 2010/05/01 06:18:03 jruoho Exp $
+.\"
+.\" Copyright (c) 1999 The NetBSD Foundation, Inc.
+.\" All rights reserved.
+.\"
+.\" This code is derived from software contributed to The NetBSD Foundation
+.\" by Klaus Klein.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
+.\" ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
+.\" TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+.\" PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
+.\" BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+.\" CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+.\" SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+.\" INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+.\" CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+.\" ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+.\" POSSIBILITY OF SUCH DAMAGE.
+.\"
+.Dd $Mdocdate: July 28 2010 $
+.Dt HCREATE 3
+.Os
+.Sh NAME
+.Nm hcreate ,
+.Nm hdestroy ,
+.Nm hsearch
+.Nd manage hash search table
+.Sh SYNOPSIS
+.In search.h
+.Ft int
+.Fn hcreate "size_t nel"
+.Ft void
+.Fn hdestroy "void"
+.Ft ENTRY *
+.Fn hsearch "ENTRY item" "ACTION action"
+.Sh DESCRIPTION
+The
+.Fn hcreate ,
+.Fn hdestroy ,
+and
+.Fn hsearch
+functions manage hash search tables.
+.Pp
+The
+.Fn hcreate
+function allocates and initializes the table.
+The
+.Fa nel
+argument specifies an estimate of the maximum number of entries to be held
+by the table.
+Unless further memory allocation fails, supplying an insufficient
+.Fa nel
+value will not result in functional harm, although a performance degradation
+may occur.
+Initialization using the
+.Fn hcreate
+function is mandatory prior to any access operations using
+.Fn hsearch .
+.Pp
+The
+.Fn hdestroy
+function destroys a table previously created using
+.Fn hcreate .
+After a call to
+.Fn hdestroy ,
+the data can no longer be accessed.
+.Pp
+The
+.Fn hsearch
+function is used to search to the hash table.
+It returns a pointer into the
+hash table indicating the address of an item.
+The
+.Fa item
+argument is of type
+.Vt ENTRY ,
+defined in the
+.In search.h
+header.
+This is a structure type that contains two pointers:
+.Pp
+.Bl -tag -compact -offset indent -width "void *data "
+.It Fa char *key
+comparison key
+.It Fa void *data
+pointer to data associated with
+.Fa key
+.El
+.Pp
+The key comparison function used by
+.Fn hsearch
+is
+.Xr strcmp 3 .
+.Pp
+The
+.Fa action
+argument is of type
+.Vt ACTION ,
+an enumeration type which defines the following values:
+.Bl -tag -offset indent -width ENTERXX
+.It Dv ENTER
+Insert
+.Fa item
+into the hash table.
+If an existing item with the same key is found, it is not replaced.
+Note that the
+.Fa key
+and
+.Fa data
+elements of
+.Fa item
+are used directly by the new table entry.
+The storage for the
+key must not be modified during the lifetime of the hash table.
+.It Dv FIND
+Search the hash table without inserting
+.Fa item .
+.El
+.Pp
+Note that the comparison
+.Fa key
+must be allocated using
+.Xr malloc 3
+or
+.Xr calloc 3
+if action is
+.Dv ENTER
+and
+.Fn hdestroy
+will be called.
+This is because
+.Fn hdestroy
+will call
+.Xr free 3
+for each comparison
+.Fa key
+(but not
+.Fa data ) .
+Typically the comparison
+.Fa key
+is allocated by using
+.Xr strdup 3 .
+.Sh RETURN VALUES
+If successful, the
+.Fn hcreate
+function returns a non-zero value.
+Otherwise, a value of 0 is returned and
+.Va errno
+is set to indicate the error.
+.Pp
+The
+.Fn hdestroy
+functions
+returns no value.
+.Pp
+If successful, the
+.Fn hsearch
+function returns a pointer to a hash table entry matching
+the provided key.
+If the action is
+.Dv FIND
+and the item was not found, or if the action is
+.Dv ENTER
+and the insertion failed,
+.Dv NULL
+is returned and
+.Va errno
+is set to indicate the error.
+If the action is
+.Dv ENTER
+and an entry already existed in the table matching the given
+key, the existing entry is returned and is not replaced.
+.Sh ERRORS
+The
+.Fn hcreate
+and
+.Fn hsearch
+functions will fail if:
+.Bl -tag -width Er
+.It Bq Er ENOMEM
+Insufficient memory is available.
+.El
+.Sh SEE ALSO
+.Xr bsearch 3 ,
+.Xr lsearch 3 ,
+.Xr malloc 3 ,
+.Xr strcmp 3
+.Sh STANDARDS
+The
+.Fn hcreate ,
+.Fn hdestroy
+and
+.Fn hsearch
+functions conform to
+.St -xpg4.2 .
+.Sh HISTORY
+The
+.Fn hcreate ,
+.Fn hdestroy
+and
+.Fn hsearch
+functions first appeared in
+.At V .
+.Sh CAVEATS
+At least the following limitations can be mentioned:
+.Bl -bullet
+.It
+The interface permits the use of only one hash table at a time.
+.It
+Individual hash table entries can be added, but not deleted.
+.It
+The standard is indecipherable about the
+internal memory usage of the functions,
+mentioning only that
+.Do
+.Fn hcreate
+and
+.Fn hsearch
+functions may use
+.Fn malloc
+to allocate space
+.Dc .
+This limits the portability of the functions,
+given that other implementations may not
+.Xr free 3
+the buffer pointed by
+.Fa key .
+.El
diff --git a/src/lib/libc/stdlib/hcreate.c b/src/lib/libc/stdlib/hcreate.c
new file mode 100644
index 0000000000..094f32c173
--- /dev/null
+++ b/src/lib/libc/stdlib/hcreate.c
@@ -0,0 +1,191 @@
+/*      $OpenBSD: hcreate.c,v 1.4 2007/09/02 15:19:17 deraadt Exp $     */
+/*      $NetBSD: hcreate.c,v 1.5 2004/04/23 02:48:12 simonb Exp $       */
+
+/*
+ * Copyright (c) 2001 Christopher G. Demetriou
+ * All rights reserved.
+ * 
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *          This product includes software developed for the
+ *          NetBSD Project.  See http://www.NetBSD.org/ for
+ *          information about NetBSD.
+ * 4. The name of the author may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission.
+ * 
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ * 
+ * <<Id: LICENSE,v 1.2 2000/06/14 15:57:33 cgd Exp>>
+ */
+
+/*
+ * hcreate() / hsearch() / hdestroy()
+ *
+ * SysV/XPG4 hash table functions.
+ *
+ * Implementation done based on NetBSD manual page and Solaris manual page,
+ * plus my own personal experience about how they're supposed to work.
+ *
+ * I tried to look at Knuth (as cited by the Solaris manual page), but
+ * nobody had a copy in the office, so...
+ */
+
+#include "namespace.h"
+#include <assert.h>
+#include <errno.h>
+#include <inttypes.h>
+#include <search.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/queue.h>
+
+#ifndef _DIAGASSERT
+#define _DIAGASSERT(x)
+#endif
+
+/*
+ * DO NOT MAKE THIS STRUCTURE LARGER THAN 32 BYTES (4 ptrs on 64-bit
+ * ptr machine) without adjusting MAX_BUCKETS_LG2 below.
+ */
+struct internal_entry {
+        SLIST_ENTRY(internal_entry) link;
+        ENTRY ent;
+};
+SLIST_HEAD(internal_head, internal_entry);
+
+#define MIN_BUCKETS_LG2 4
+#define MIN_BUCKETS     (1 << MIN_BUCKETS_LG2)
+
+/*
+ * max * sizeof internal_entry must fit into size_t.
+ * assumes internal_entry is <= 32 (2^5) bytes.
+ */
+#define MAX_BUCKETS_LG2 (sizeof (size_t) * 8 - 1 - 5)
+#define MAX_BUCKETS     ((size_t)1 << MAX_BUCKETS_LG2)
+
+/* Default hash function, from db/hash/hash_func.c */
+extern u_int32_t (*__default_hash)(const void *, size_t);
+
+static struct internal_head *htable;
+static size_t htablesize;
+
+int
+hcreate(size_t nel)
+{
+        size_t idx;
+        unsigned int p2;
+
+        /* Make sure this isn't called when a table already exists. */
+        _DIAGASSERT(htable == NULL);
+        if (htable != NULL) {
+                errno = EINVAL;
+                return 0;
+        }
+
+        /* If nel is too small, make it min sized. */
+        if (nel < MIN_BUCKETS)
+                nel = MIN_BUCKETS;
+
+        /* If it's too large, cap it. */
+        if (nel > MAX_BUCKETS)
+                nel = MAX_BUCKETS;
+
+        /* If it's is not a power of two in size, round up. */
+        if ((nel & (nel - 1)) != 0) {
+                for (p2 = 0; nel != 0; p2++)
+                        nel >>= 1;
+                _DIAGASSERT(p2 <= MAX_BUCKETS_LG2);
+                nel = 1 << p2;
+        }
+        
+        /* Allocate the table. */
+        htablesize = nel;
+        htable = calloc(htablesize, sizeof htable[0]);
+        if (htable == NULL) {
+                errno = ENOMEM;
+                return 0;
+        }
+
+        /* Initialize it. */
+        for (idx = 0; idx < htablesize; idx++)
+                SLIST_INIT(&htable[idx]);
+
+        return 1;
+}
+
+void
+hdestroy(void)
+{
+        struct internal_entry *ie;
+        size_t idx;
+
+        _DIAGASSERT(htable != NULL);
+        if (htable == NULL)
+                return;
+
+        for (idx = 0; idx < htablesize; idx++) {
+                while (!SLIST_EMPTY(&htable[idx])) {
+                        ie = SLIST_FIRST(&htable[idx]);
+                        SLIST_REMOVE_HEAD(&htable[idx], link);
+                        free(ie->ent.key);
+                        free(ie);
+                }
+        }
+        free(htable);
+        htable = NULL;
+}
+
+ENTRY *
+hsearch(ENTRY item, ACTION action)
+{
+        struct internal_head *head;
+        struct internal_entry *ie;
+        uint32_t hashval;
+        size_t len;
+
+        _DIAGASSERT(htable != NULL);
+        _DIAGASSERT(item.key != NULL);
+        _DIAGASSERT(action == ENTER || action == FIND);
+
+        len = strlen(item.key);
+        hashval = (*__default_hash)(item.key, len);
+
+        head = &htable[hashval & (htablesize - 1)];
+        ie = SLIST_FIRST(head);
+        while (ie != NULL) {
+                if (strcmp(ie->ent.key, item.key) == 0)
+                        break;
+                ie = SLIST_NEXT(ie, link);
+        }
+
+        if (ie != NULL)
+                return &ie->ent;
+        else if (action == FIND)
+                return NULL;
+
+        ie = malloc(sizeof *ie);
+        if (ie == NULL)
+                return NULL;
+        ie->ent.key = item.key;
+        ie->ent.data = item.data;
+
+        SLIST_INSERT_HEAD(head, ie, link);
+        return &ie->ent;
+}
diff --git a/src/lib/libc/stdlib/heapsort.c b/src/lib/libc/stdlib/heapsort.c
new file mode 100644
index 0000000000..ad3fffbcd9
--- /dev/null
+++ b/src/lib/libc/stdlib/heapsort.c
@@ -0,0 +1,173 @@
+/*-
+ * Copyright (c) 1991, 1993
+ *      The Regents of the University of California.  All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Ronnie Kon at Mindcraft Inc., Kevin Lew and Elmer Yglesias.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <sys/types.h>
+#include <errno.h>
+#include <stdlib.h>
+
+/*
+ * Swap two areas of size number of bytes.  Although qsort(3) permits random
+ * blocks of memory to be sorted, sorting pointers is almost certainly the
+ * common case (and, were it not, could easily be made so).  Regardless, it
+ * isn't worth optimizing; the SWAP's get sped up by the cache, and pointer
+ * arithmetic gets lost in the time required for comparison function calls.
+ */
+#define SWAP(a, b, count, size, tmp) { \
+        count = size; \
+        do { \
+                tmp = *a; \
+                *a++ = *b; \
+                *b++ = tmp; \
+        } while (--count); \
+}
+
+/* Copy one block of size size to another. */
+#define COPY(a, b, count, size, tmp1, tmp2) { \
+        count = size; \
+        tmp1 = a; \
+        tmp2 = b; \
+        do { \
+                *tmp1++ = *tmp2++; \
+        } while (--count); \
+}
+
+/*
+ * Build the list into a heap, where a heap is defined such that for
+ * the records K1 ... KN, Kj/2 >= Kj for 1 <= j/2 <= j <= N.
+ *
+ * There are two cases.  If j == nmemb, select largest of Ki and Kj.  If
+ * j < nmemb, select largest of Ki, Kj and Kj+1.
+ */
+#define CREATE(initval, nmemb, par_i, child_i, par, child, size, count, tmp) { \
+        for (par_i = initval; (child_i = par_i * 2) <= nmemb; \
+            par_i = child_i) { \
+                child = base + child_i * size; \
+                if (child_i < nmemb && compar(child, child + size) < 0) { \
+                        child += size; \
+                        ++child_i; \
+                } \
+                par = base + par_i * size; \
+                if (compar(child, par) <= 0) \
+                        break; \
+                SWAP(par, child, count, size, tmp); \
+        } \
+}
+
+/*
+ * Select the top of the heap and 'heapify'.  Since by far the most expensive
+ * action is the call to the compar function, a considerable optimization
+ * in the average case can be achieved due to the fact that k, the displaced
+ * element, is usually quite small, so it would be preferable to first
+ * heapify, always maintaining the invariant that the larger child is copied
+ * over its parent's record.
+ *
+ * Then, starting from the *bottom* of the heap, finding k's correct place,
+ * again maintaining the invariant.  As a result of the invariant no element
+ * is 'lost' when k is assigned its correct place in the heap.
+ *
+ * The time savings from this optimization are on the order of 15-20% for the
+ * average case. See Knuth, Vol. 3, page 158, problem 18.
+ *
+ * XXX Don't break the #define SELECT line, below.  Reiser cpp gets upset.
+ */
+#define SELECT(par_i, child_i, nmemb, par, child, size, k, count, tmp1, tmp2) { \
+        for (par_i = 1; (child_i = par_i * 2) <= nmemb; par_i = child_i) { \
+                child = base + child_i * size; \
+                if (child_i < nmemb && compar(child, child + size) < 0) { \
+                        child += size; \
+                        ++child_i; \
+                } \
+                par = base + par_i * size; \
+                COPY(par, child, count, size, tmp1, tmp2); \
+        } \
+        for (;;) { \
+                child_i = par_i; \
+                par_i = child_i / 2; \
+                child = base + child_i * size; \
+                par = base + par_i * size; \
+                if (child_i == 1 || compar(k, par) < 0) { \
+                        COPY(child, k, count, size, tmp1, tmp2); \
+                        break; \
+                } \
+                COPY(child, par, count, size, tmp1, tmp2); \
+        } \
+}
+
+/*
+ * Heapsort -- Knuth, Vol. 3, page 145.  Runs in O (N lg N), both average
+ * and worst.  While heapsort is faster than the worst case of quicksort,
+ * the BSD quicksort does median selection so that the chance of finding
+ * a data set that will trigger the worst case is nonexistent.  Heapsort's
+ * only advantage over quicksort is that it requires little additional memory.
+ */
+int
+heapsort(void *vbase, size_t nmemb, size_t size,
+    int (*compar)(const void *, const void *))
+{
+        size_t cnt, i, j, l;
+        char tmp, *tmp1, *tmp2;
+        char *base, *k, *p, *t;
+
+        if (nmemb <= 1)
+                return (0);
+
+        if (!size) {
+                errno = EINVAL;
+                return (-1);
+        }
+
+        if ((k = malloc(size)) == NULL)
+                return (-1);
+
+        /*
+         * Items are numbered from 1 to nmemb, so offset from size bytes
+         * below the starting address.
+         */
+        base = (char *)vbase - size;
+
+        for (l = nmemb / 2 + 1; --l;)
+                CREATE(l, nmemb, i, j, t, p, size, cnt, tmp);
+
+        /*
+         * For each element of the heap, save the largest element into its
+         * final slot, save the displaced element (k), then recreate the
+         * heap.
+         */
+        while (nmemb > 1) {
+                COPY(k, base + nmemb * size, cnt, size, tmp1, tmp2);
+                COPY(base + nmemb * size, base + size, cnt, size, tmp1, tmp2);
+                --nmemb;
+                SELECT(i, j, nmemb, t, p, size, k, cnt, tmp1, tmp2);
+        }
+        free(k);
+        return (0);
+}
diff --git a/src/lib/libc/stdlib/imaxabs.3 b/src/lib/libc/stdlib/imaxabs.3
new file mode 100644
index 0000000000..6c4793477e
--- /dev/null
+++ b/src/lib/libc/stdlib/imaxabs.3
@@ -0,0 +1,65 @@
+.\" Copyright (c) 1990, 1991 The Regents of the University of California.
+.\" All rights reserved.
+.\"
+.\" This code is derived from software contributed to Berkeley by
+.\" the American National Standards Committee X3, on Information
+.\" Processing Systems.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\" 3. Neither the name of the University nor the names of its contributors
+.\"    may be used to endorse or promote products derived from this software
+.\"    without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.\"     $OpenBSD: imaxabs.3,v 1.6 2013/06/05 03:39:23 tedu Exp $
+.\"
+.Dd $Mdocdate: June 5 2013 $
+.Dt IMAXABS 3
+.Os
+.Sh NAME
+.Nm imaxabs
+.Nd integer absolute value function
+.Sh SYNOPSIS
+.In inttypes.h
+.Ft intmax_t
+.Fn imaxabs "intmax_t j"
+.Sh DESCRIPTION
+The
+.Fn imaxabs
+function computes the absolute value of the intmax_t variable
+.Fa j .
+.Sh RETURN VALUES
+The
+.Fn imaxabs
+function returns the absolute value.
+.Sh SEE ALSO
+.Xr abs 3 ,
+.Xr cabs 3 ,
+.Xr floor 3 ,
+.Xr hypot 3 ,
+.Xr labs 3
+.Sh STANDARDS
+The
+.Fn imaxabs
+function conforms to
+.St -ansiC-99 .
+.Sh BUGS
+The absolute value of the most negative integer remains negative.
diff --git a/src/lib/libc/stdlib/imaxabs.c b/src/lib/libc/stdlib/imaxabs.c
new file mode 100644
index 0000000000..b7e910eefd
--- /dev/null
+++ b/src/lib/libc/stdlib/imaxabs.c
@@ -0,0 +1,38 @@
+/*      $OpenBSD: imaxabs.c,v 1.1 2006/01/13 17:58:09 millert Exp $     */
+
+/*-
+ * Copyright (c) 1990 The Regents of the University of California.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <inttypes.h>
+
+intmax_t
+imaxabs(intmax_t j)
+{
+        return (j < 0 ? -j : j);
+}
diff --git a/src/lib/libc/stdlib/imaxdiv.3 b/src/lib/libc/stdlib/imaxdiv.3
new file mode 100644
index 0000000000..40ac0bc236
--- /dev/null
+++ b/src/lib/libc/stdlib/imaxdiv.3
@@ -0,0 +1,66 @@
+.\" Copyright (c) 1990, 1991 The Regents of the University of California.
+.\" All rights reserved.
+.\"
+.\" This code is derived from software contributed to Berkeley by
+.\" Chris Torek and the American National Standards Committee X3,
+.\" on Information Processing Systems.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\" 3. Neither the name of the University nor the names of its contributors
+.\"    may be used to endorse or promote products derived from this software
+.\"    without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.\"     $OpenBSD: imaxdiv.3,v 1.5 2013/06/05 03:39:23 tedu Exp $
+.\"
+.Dd $Mdocdate: June 5 2013 $
+.Dt IMAXDIV 3
+.Os
+.Sh NAME
+.Nm imaxdiv
+.Nd return quotient and remainder from division
+.Sh SYNOPSIS
+.In inttypes.h
+.Ft imaxdiv_t
+.Fn imaxdiv "intmax_t num" "intmax_t denom"
+.Sh DESCRIPTION
+The
+.Fn imaxdiv
+function computes the value
+.Fa num Ns / Ns Fa denom
+and returns the quotient and remainder in a structure named
+.Li imaxdiv_t
+that contains two
+.Li intmax_t
+members named
+.Fa quot
+and
+.Fa rem .
+.Sh SEE ALSO
+.Xr div 3 ,
+.Xr ldiv 3 ,
+.Xr lldiv 3 ,
+.Xr qdiv 3
+.Sh STANDARDS
+The
+.Fn imaxdiv
+function conforms to
+.St -ansiC-99 .
diff --git a/src/lib/libc/stdlib/imaxdiv.c b/src/lib/libc/stdlib/imaxdiv.c
new file mode 100644
index 0000000000..0515a94b96
--- /dev/null
+++ b/src/lib/libc/stdlib/imaxdiv.c
@@ -0,0 +1,50 @@
+/*      $OpenBSD: imaxdiv.c,v 1.1 2006/01/13 17:58:09 millert Exp $     */
+/*
+ * Copyright (c) 1990 Regents of the University of California.
+ * All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Chris Torek.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <inttypes.h>           /* imaxdiv_t */
+
+imaxdiv_t
+imaxdiv(intmax_t num, intmax_t denom)
+{
+        imaxdiv_t r;
+
+        /* see div.c for comments */
+
+        r.quot = num / denom;
+        r.rem = num % denom;
+        if (num >= 0 && r.rem < 0) {
+                r.quot++;
+                r.rem -= denom;
+        }
+        return (r);
+}
diff --git a/src/lib/libc/stdlib/insque.3 b/src/lib/libc/stdlib/insque.3
new file mode 100644
index 0000000000..64da36a898
--- /dev/null
+++ b/src/lib/libc/stdlib/insque.3
@@ -0,0 +1,106 @@
+.\"     $OpenBSD: insque.3,v 1.9 2013/06/05 03:39:23 tedu Exp $
+.\" Copyright (c) 1993 John Brezak
+.\" All rights reserved.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\" 3. The name of the author may be used to endorse or promote products
+.\"    derived from this software without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR `AS IS'' AND
+.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.\"
+.Dd $Mdocdate: June 5 2013 $
+.Dt INSQUE 3
+.Os
+.Sh NAME
+.Nm insque ,
+.Nm remque
+.Nd insert/remove element from a queue
+.Sh SYNOPSIS
+.In search.h
+.Ft void
+.Fn insque "void *elem" "void *pred"
+.Ft void
+.Fn remque "void *elem"
+.Sh DESCRIPTION
+.Bf -symbolic
+These interfaces have been superseded by the
+.Xr queue 3
+macros and are provided for compatibility with legacy code.
+.Ef
+.Pp
+.Fn insque
+and
+.Fn remque
+manipulate queues built from doubly linked lists.
+The queue can be either circular or linear.
+Each element in the queue must be of the following form:
+.Bd -literal -offset indent
+struct qelem {
+        struct qelem   *q_forw;
+        struct qelem   *q_back;
+        char            q_data[];
+};
+.Ed
+.Pp
+The first two elements in the struct must be pointers of the
+same type that point to the previous and next elements in
+the queue respectively.
+Any subsequent data in the struct is application-dependent.
+.Pp
+The
+.Fn insque
+function inserts
+.Fa elem
+into a queue immediately after
+.Fa pred .
+.Pp
+The
+.Fn remque
+function removes
+.Fa elem
+from the queue.
+.Pp
+These functions are not atomic unless that machine architecture allows it.
+.Sh SEE ALSO
+.Xr queue 3
+.Sh STANDARDS
+The
+.Fn insque
+and
+.Fn remque
+functions conform to the
+.St -p1003.1-2001
+and
+.St -xpg4.3
+specifications.
+.Sh HISTORY
+The
+.Fn insque
+and
+.Fn remque
+functions are derived from the
+.Li insque
+and
+.Li remque
+instructions on the
+.Tn VAX .
+They first appeared in
+.Bx 4.2 .
diff --git a/src/lib/libc/stdlib/insque.c b/src/lib/libc/stdlib/insque.c
new file mode 100644
index 0000000000..8724efec74
--- /dev/null
+++ b/src/lib/libc/stdlib/insque.c
@@ -0,0 +1,48 @@
+/*      $OpenBSD: insque.c,v 1.2 2005/08/08 08:05:36 espie Exp $        */
+
+/*
+ *  Copyright (c) 1993 John Brezak
+ *  All rights reserved.
+ * 
+ *  Redistribution and use in source and binary forms, with or without
+ *  modification, are permitted provided that the following conditions
+ *  are met:
+ *  1. Redistributions of source code must retain the above copyright
+ *     notice, this list of conditions and the following disclaimer.
+ *  2. Redistributions in binary form must reproduce the above copyright
+ *     notice, this list of conditions and the following disclaimer in the
+ *     documentation and/or other materials provided with the distribution.
+ *  3. The name of the author may be used to endorse or promote products
+ *     derived from this software without specific prior written permission.
+ * 
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR `AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
+ * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+ * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <search.h>
+
+struct qelem {
+        struct qelem *q_forw;
+        struct qelem *q_back;
+};
+
+void
+insque(void *entry, void *pred)
+{
+        struct qelem *e = (struct qelem *) entry;
+        struct qelem *p = (struct qelem *) pred;
+
+        e->q_forw = p->q_forw;
+        e->q_back = p;
+        p->q_forw->q_back = e;
+        p->q_forw = e;
+}
diff --git a/src/lib/libc/stdlib/jrand48.c b/src/lib/libc/stdlib/jrand48.c
new file mode 100644
index 0000000000..cb8c592750
--- /dev/null
+++ b/src/lib/libc/stdlib/jrand48.c
@@ -0,0 +1,22 @@
+/*      $OpenBSD: jrand48.c,v 1.3 2005/08/08 08:05:36 espie Exp $ */
+/*
+ * Copyright (c) 1993 Martin Birgmeier
+ * All rights reserved.
+ *
+ * You may redistribute unmodified or modified versions of this source
+ * code provided that the above copyright notice and this and the
+ * following conditions are retained.
+ *
+ * This software is provided ``as is'', and comes with no warranties
+ * of any kind. I shall in no event be liable for anything that happens
+ * to anyone/anything when using this software.
+ */
+
+#include "rand48.h"
+
+long
+jrand48(unsigned short xseed[3])
+{
+        __dorand48(xseed);
+        return ((long) xseed[2] << 16) + (long) xseed[1];
+}
diff --git a/src/lib/libc/stdlib/l64a.c b/src/lib/libc/stdlib/l64a.c
new file mode 100644
index 0000000000..4f33df37b2
--- /dev/null
+++ b/src/lib/libc/stdlib/l64a.c
@@ -0,0 +1,42 @@
+/*      $OpenBSD: l64a.c,v 1.5 2005/08/08 08:05:36 espie Exp $ */
+/*
+ * Written by J.T. Conklin <jtc@netbsd.org>.
+ * Public domain.
+ */
+
+#include <errno.h>
+#include <stdlib.h>
+
+char *
+l64a(long value)
+{
+        static char buf[8];
+        char *s = buf;
+        int digit;
+        int i;
+
+        if (value < 0) {
+                errno = EINVAL;
+                return(NULL);
+        }
+
+        for (i = 0; value != 0 && i < 6; i++) {
+                digit = value & 0x3f;
+
+                if (digit < 2) 
+                        *s = digit + '.';
+                else if (digit < 12)
+                        *s = digit + '0' - 2;
+                else if (digit < 38)
+                        *s = digit + 'A' - 12;
+                else
+                        *s = digit + 'a' - 38;
+
+                value >>= 6;
+                s++;
+        }
+
+        *s = '\0';
+
+        return(buf);
+}
diff --git a/src/lib/libc/stdlib/labs.3 b/src/lib/libc/stdlib/labs.3
new file mode 100644
index 0000000000..a38c64b1af
--- /dev/null
+++ b/src/lib/libc/stdlib/labs.3
@@ -0,0 +1,69 @@
+.\" Copyright (c) 1990, 1991 The Regents of the University of California.
+.\" All rights reserved.
+.\"
+.\" This code is derived from software contributed to Berkeley by
+.\" the American National Standards Committee X3, on Information
+.\" Processing Systems.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\" 3. Neither the name of the University nor the names of its contributors
+.\"    may be used to endorse or promote products derived from this software
+.\"    without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.\"     $OpenBSD: labs.3,v 1.12 2014/01/19 05:21:12 schwarze Exp $
+.\"
+.Dd $Mdocdate: January 19 2014 $
+.Dt LABS 3
+.Os
+.Sh NAME
+.Nm labs ,
+.Nm llabs
+.Nd return the absolute value of a long integer
+.Sh SYNOPSIS
+.In stdlib.h
+.Ft long
+.Fn labs "long i"
+.Ft long long
+.Fn llabs "long long j"
+.Sh DESCRIPTION
+The
+.Fn labs
+function returns the absolute value of the long integer
+.Fa i .
+The
+.Fn llabs
+function returns the absolute value of the long long integer
+.Fa j .
+.Sh SEE ALSO
+.Xr abs 3 ,
+.Xr cabs 3 ,
+.Xr floor 3 ,
+.Xr imaxabs 3
+.Sh STANDARDS
+The
+.Fn labs
+and
+.Fn llabs
+functions conform to
+.St -ansiC-99 .
+.Sh BUGS
+The absolute value of the most negative integer remains negative.
diff --git a/src/lib/libc/stdlib/labs.c b/src/lib/libc/stdlib/labs.c
new file mode 100644
index 0000000000..ca60b9aba2
--- /dev/null
+++ b/src/lib/libc/stdlib/labs.c
@@ -0,0 +1,37 @@
+/*      $OpenBSD: labs.c,v 1.5 2005/08/08 08:05:36 espie Exp $ */
+/*-
+ * Copyright (c) 1990 The Regents of the University of California.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <stdlib.h>
+
+long
+labs(long j)
+{
+        return(j < 0 ? -j : j);
+}
diff --git a/src/lib/libc/stdlib/lcong48.c b/src/lib/libc/stdlib/lcong48.c
new file mode 100644
index 0000000000..2cf5c271ba
--- /dev/null
+++ b/src/lib/libc/stdlib/lcong48.c
@@ -0,0 +1,31 @@
+/*      $OpenBSD: lcong48.c,v 1.3 2005/08/08 08:05:36 espie Exp $ */
+/*
+ * Copyright (c) 1993 Martin Birgmeier
+ * All rights reserved.
+ *
+ * You may redistribute unmodified or modified versions of this source
+ * code provided that the above copyright notice and this and the
+ * following conditions are retained.
+ *
+ * This software is provided ``as is'', and comes with no warranties
+ * of any kind. I shall in no event be liable for anything that happens
+ * to anyone/anything when using this software.
+ */
+
+#include "rand48.h"
+
+extern unsigned short __rand48_seed[3];
+extern unsigned short __rand48_mult[3];
+extern unsigned short __rand48_add;
+
+void
+lcong48(unsigned short p[7])
+{
+        __rand48_seed[0] = p[0];
+        __rand48_seed[1] = p[1];
+        __rand48_seed[2] = p[2];
+        __rand48_mult[0] = p[3];
+        __rand48_mult[1] = p[4];
+        __rand48_mult[2] = p[5];
+        __rand48_add = p[6];
+}
diff --git a/src/lib/libc/stdlib/ldiv.3 b/src/lib/libc/stdlib/ldiv.3
new file mode 100644
index 0000000000..a8835ab6ac
--- /dev/null
+++ b/src/lib/libc/stdlib/ldiv.3
@@ -0,0 +1,72 @@
+.\" Copyright (c) 1990, 1991 The Regents of the University of California.
+.\" All rights reserved.
+.\"
+.\" This code is derived from software contributed to Berkeley by
+.\" Chris Torek and the American National Standards Committee X3,
+.\" on Information Processing Systems.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\" 3. Neither the name of the University nor the names of its contributors
+.\"    may be used to endorse or promote products derived from this software
+.\"    without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.\"     $OpenBSD: ldiv.3,v 1.12 2013/07/17 05:42:11 schwarze Exp $
+.\"
+.Dd $Mdocdate: July 17 2013 $
+.Dt LDIV 3
+.Os
+.Sh NAME
+.Nm ldiv
+.Nd return quotient and remainder from division
+.Sh SYNOPSIS
+.In stdlib.h
+.Ft ldiv_t
+.Fn ldiv "long num" "long denom"
+.Sh DESCRIPTION
+The
+.Fn ldiv
+function computes the value
+.Fa num Ns / Ns Fa denom
+and returns the quotient and remainder in a structure named
+.Li ldiv_t
+that contains two
+.Li long integer
+members named
+.Fa quot
+and
+.Fa rem .
+.Sh SEE ALSO
+.Xr div 3 ,
+.Xr imaxdiv 3 ,
+.Xr lldiv 3 ,
+.Xr qdiv 3
+.Sh STANDARDS
+The
+.Fn ldiv
+function conforms to
+.St -ansiC .
+.Sh HISTORY
+An
+.Fn ldiv
+function with similar functionality, but a different calling convention,
+first appeared in
+.At v4 .
diff --git a/src/lib/libc/stdlib/ldiv.c b/src/lib/libc/stdlib/ldiv.c
new file mode 100644
index 0000000000..775065f525
--- /dev/null
+++ b/src/lib/libc/stdlib/ldiv.c
@@ -0,0 +1,50 @@
+/*      $OpenBSD: ldiv.c,v 1.5 2005/08/08 08:05:36 espie Exp $ */
+/*
+ * Copyright (c) 1990 Regents of the University of California.
+ * All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Chris Torek.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <stdlib.h>             /* ldiv_t */
+
+ldiv_t
+ldiv(long num, long denom)
+{
+        ldiv_t r;
+
+        /* see div.c for comments */
+
+        r.quot = num / denom;
+        r.rem = num % denom;
+        if (num >= 0 && r.rem < 0) {
+                r.quot++;
+                r.rem -= denom;
+        }
+        return (r);
+}
diff --git a/src/lib/libc/stdlib/llabs.c b/src/lib/libc/stdlib/llabs.c
new file mode 100644
index 0000000000..fc2cd8261c
--- /dev/null
+++ b/src/lib/libc/stdlib/llabs.c
@@ -0,0 +1,38 @@
+/*      $OpenBSD: llabs.c,v 1.3 2007/01/08 19:39:25 deraadt Exp $       */
+
+/*-
+ * Copyright (c) 1990 The Regents of the University of California.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <stdlib.h>
+
+long long
+llabs(long long j)
+{
+        return (j < 0 ? -j : j);
+}
diff --git a/src/lib/libc/stdlib/lldiv.3 b/src/lib/libc/stdlib/lldiv.3
new file mode 100644
index 0000000000..9181f8b7c5
--- /dev/null
+++ b/src/lib/libc/stdlib/lldiv.3
@@ -0,0 +1,66 @@
+.\" Copyright (c) 1990, 1991 The Regents of the University of California.
+.\" All rights reserved.
+.\"
+.\" This code is derived from software contributed to Berkeley by
+.\" Chris Torek and the American National Standards Committee X3,
+.\" on Information Processing Systems.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\" 3. Neither the name of the University nor the names of its contributors
+.\"    may be used to endorse or promote products derived from this software
+.\"    without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.\"     $OpenBSD: lldiv.3,v 1.4 2013/06/05 03:39:23 tedu Exp $
+.\"
+.Dd $Mdocdate: June 5 2013 $
+.Dt LLDIV 3
+.Os
+.Sh NAME
+.Nm lldiv
+.Nd return quotient and remainder from division
+.Sh SYNOPSIS
+.In stdlib.h
+.Ft lldiv_t
+.Fn lldiv "long long num" "long long denom"
+.Sh DESCRIPTION
+The
+.Fn lldiv
+function computes the value
+.Fa num Ns / Ns Fa denom
+and returns the quotient and remainder in a structure named
+.Li lldiv_t
+that contains two
+.Li long long integer
+members named
+.Fa quot
+and
+.Fa rem .
+.Sh SEE ALSO
+.Xr div 3 ,
+.Xr imaxdiv 3 ,
+.Xr ldiv 3 ,
+.Xr qdiv 3
+.Sh STANDARDS
+The
+.Fn lldiv
+function conforms to
+.St -ansiC-99 .
diff --git a/src/lib/libc/stdlib/lldiv.c b/src/lib/libc/stdlib/lldiv.c
new file mode 100644
index 0000000000..e8d6c978b3
--- /dev/null
+++ b/src/lib/libc/stdlib/lldiv.c
@@ -0,0 +1,50 @@
+/*      $OpenBSD: lldiv.c,v 1.1 2006/01/13 17:58:09 millert Exp $       */
+/*
+ * Copyright (c) 1990 Regents of the University of California.
+ * All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Chris Torek.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <stdlib.h>             /* lldiv_t */
+
+lldiv_t
+lldiv(long long num, long long denom)
+{
+        lldiv_t r;
+
+        /* see div.c for comments */
+
+        r.quot = num / denom;
+        r.rem = num % denom;
+        if (num >= 0 && r.rem < 0) {
+                r.quot++;
+                r.rem -= denom;
+        }
+        return (r);
+}
diff --git a/src/lib/libc/stdlib/lrand48.c b/src/lib/libc/stdlib/lrand48.c
new file mode 100644
index 0000000000..21beb858ca
--- /dev/null
+++ b/src/lib/libc/stdlib/lrand48.c
@@ -0,0 +1,24 @@
+/*      $OpenBSD: lrand48.c,v 1.3 2005/08/08 08:05:36 espie Exp $ */
+/*
+ * Copyright (c) 1993 Martin Birgmeier
+ * All rights reserved.
+ *
+ * You may redistribute unmodified or modified versions of this source
+ * code provided that the above copyright notice and this and the
+ * following conditions are retained.
+ *
+ * This software is provided ``as is'', and comes with no warranties
+ * of any kind. I shall in no event be liable for anything that happens
+ * to anyone/anything when using this software.
+ */
+
+#include "rand48.h"
+
+extern unsigned short __rand48_seed[3];
+
+long
+lrand48(void)
+{
+        __dorand48(__rand48_seed);
+        return ((long) __rand48_seed[2] << 15) + ((long) __rand48_seed[1] >> 1);
+}
diff --git a/src/lib/libc/stdlib/lsearch.3 b/src/lib/libc/stdlib/lsearch.3
new file mode 100644
index 0000000000..c5a55980e1
--- /dev/null
+++ b/src/lib/libc/stdlib/lsearch.3
@@ -0,0 +1,108 @@
+.\"     $OpenBSD: lsearch.3,v 1.10 2013/06/05 03:39:23 tedu Exp $
+.\"
+.\" Copyright (c) 1989, 1991, 1993
+.\"     The Regents of the University of California.  All rights reserved.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\" 3. Neither the name of the University nor the names of its contributors
+.\"    may be used to endorse or promote products derived from this software
+.\"    without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.\"     @(#)lsearch.3   8.1 (Berkeley) 6/4/93
+.\"
+.Dd $Mdocdate: June 5 2013 $
+.Dt LSEARCH 3
+.Os
+.Sh NAME
+.Nm lsearch ,
+.Nm lfind
+.Nd linear searching routines
+.Sh SYNOPSIS
+.In search.h
+.Ft char *
+.Fn lsearch "const void *key" "const void *base" "size_t *nelp" \
+    "size_t width" "int (*compar)(const void *, const void *)"
+.Ft char *
+.Fn lfind "const void *key" "const void *base" "size_t *nelp" \
+    "size_t width" "int (*compar)(const void *, const void *)"
+.Sh DESCRIPTION
+The functions
+.Fn lsearch
+and
+.Fn lfind
+provide basic linear searching functionality.
+.Pp
+.Fa base
+is the pointer to the beginning of an array.
+The argument
+.Fa nelp
+is the current number of elements in the array, where each element
+is
+.Fa width
+bytes long.
+The
+.Fa compar
+function
+is a comparison routine which is used to compare two elements.
+It takes two arguments which point to the
+.Fa key
+object and to an array member, in that order, and must return an integer
+less than, equivalent to, or greater than zero if the
+.Fa key
+object is considered, respectively, to be less than, equal to, or greater
+than the array member.
+.Pp
+The
+.Fn lsearch
+and
+.Fn lfind
+functions
+return a pointer into the array referenced by
+.Fa base
+where
+.Fa key
+is located.
+If
+.Fa key
+does not exist,
+.Fn lfind
+will return a null pointer and
+.Fn lsearch
+will add it to the array.
+When an element is added to the array by
+.Fn lsearch ,
+the location referenced by the argument
+.Fa nelp
+is incremented by one.
+.Sh SEE ALSO
+.Xr bsearch 3 ,
+.Xr db 3
+.Sh STANDARDS
+The
+.Fn lsearch
+and
+.Fn lfind
+functions conform to the
+.St -p1003.1-2001
+and
+.St -xpg4.3
+specifications.
diff --git a/src/lib/libc/stdlib/lsearch.c b/src/lib/libc/stdlib/lsearch.c
new file mode 100644
index 0000000000..a01d80e008
--- /dev/null
+++ b/src/lib/libc/stdlib/lsearch.c
@@ -0,0 +1,84 @@
+/*      $OpenBSD: lsearch.c,v 1.4 2009/10/27 23:59:59 deraadt Exp $     */
+
+/*
+ * Copyright (c) 1989, 1993
+ *      The Regents of the University of California.  All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Roger L. Snyder.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <sys/types.h>
+#include <string.h>
+#include <search.h>
+
+typedef int (*cmp_fn_t)(const void *, const void *);
+static void *linear_base(const void *, const void *, size_t *, size_t,
+    cmp_fn_t, int);
+
+void *
+lsearch(const void *key, const void *base, size_t *nelp, size_t width,
+        cmp_fn_t compar)
+{
+
+        return(linear_base(key, base, nelp, width, compar, 1));
+}
+
+void *
+lfind(const void *key, const void *base, size_t *nelp, size_t width,
+        cmp_fn_t compar)
+{
+        return(linear_base(key, base, nelp, width, compar, 0));
+}
+
+static void *
+linear_base(const void *key, const void *base, size_t *nelp, size_t width,
+        cmp_fn_t compar, int add_flag)
+{
+        const char *element, *end;
+
+        end = (const char *)base + *nelp * width;
+        for (element = base; element < end; element += width)
+                if (!compar(key, element))              /* key found */
+                        return((void *)element);
+
+        if (!add_flag)                                  /* key not found */
+                return(NULL);
+
+        /*
+         * The UNIX System User's Manual, 1986 edition claims that
+         * a NULL pointer is returned by lsearch with errno set
+         * appropriately, if there is not enough room in the table
+         * to add a new item.  This can't be done as none of these
+         * routines have any method of determining the size of the
+         * table.  This comment isn't in the 1986-87 System V
+         * manual.
+         */
+        ++*nelp;
+        memcpy((void *)end, key, width);
+        return((void *)end);
+}
diff --git a/src/lib/libc/stdlib/malloc.3 b/src/lib/libc/stdlib/malloc.3
new file mode 100644
index 0000000000..414f0a9770
--- /dev/null
+++ b/src/lib/libc/stdlib/malloc.3
@@ -0,0 +1,484 @@
+.\"
+.\" Copyright (c) 1980, 1991, 1993
+.\"     The Regents of the University of California.  All rights reserved.
+.\"
+.\" This code is derived from software contributed to Berkeley by
+.\" the American National Standards Committee X3, on Information
+.\" Processing Systems.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\" 3. Neither the name of the University nor the names of its contributors
+.\"    may be used to endorse or promote products derived from this software
+.\"    without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.\"     $OpenBSD: malloc.3,v 1.73 2013/07/18 10:14:49 schwarze Exp $
+.\"
+.Dd $Mdocdate: July 18 2013 $
+.Dt MALLOC 3
+.Os
+.Sh NAME
+.Nm malloc ,
+.Nm calloc ,
+.Nm realloc ,
+.Nm free ,
+.Nm cfree
+.Nd memory allocation and deallocation
+.Sh SYNOPSIS
+.In stdlib.h
+.Ft void *
+.Fn malloc "size_t size"
+.Ft void *
+.Fn calloc "size_t nmemb" "size_t size"
+.Ft void *
+.Fn realloc "void *ptr" "size_t size"
+.Ft void
+.Fn free "void *ptr"
+.Ft void
+.Fn cfree "void *ptr"
+.Ft char *
+.Va malloc_options ;
+.Sh DESCRIPTION
+The
+.Fn malloc
+function allocates uninitialized space for an object whose
+size is specified by
+.Fa size .
+The
+.Fn malloc
+function maintains multiple lists of free blocks according to size, allocating
+space from the appropriate list.
+.Pp
+The allocated space is
+suitably aligned (after possible pointer
+coercion) for storage of any type of object.
+If the space is of
+.Em pagesize
+or larger, the memory returned will be page-aligned.
+.Pp
+Allocation of a zero size object returns a pointer to a zero size object.
+This zero size object is access protected, so any access to it will
+generate an exception (SIGSEGV).
+Many zero-sized objects can be placed consecutively in shared
+protected pages.
+The minimum size of the protection on each object is suitably aligned and
+sized as previously stated, but the protection may extend further depending
+on where in a protected zone the object lands.
+.Pp
+When using
+.Fn malloc
+be careful to avoid the following idiom:
+.Bd -literal -offset indent
+if ((p = malloc(num * size)) == NULL)
+        err(1, "malloc");
+.Ed
+.Pp
+The multiplication may lead to an integer overflow.
+To avoid this,
+.Fn calloc
+is recommended.
+.Pp
+If
+.Fn malloc
+must be used, be sure to test for overflow:
+.Bd -literal -offset indent
+if (size && num > SIZE_MAX / size) {
+        errno = ENOMEM;
+        err(1, "overflow");
+}
+.Ed
+.Pp
+The
+.Fn calloc
+function allocates space for an array of
+.Fa nmemb
+objects, each of whose size is
+.Fa size .
+The space is initialized to zero.
+The use of
+.Fn calloc
+is strongly encouraged when allocating multiple sized objects
+in order to avoid possible integer overflows.
+.Pp
+The
+.Fn free
+function causes the space pointed to by
+.Fa ptr
+to be either placed on a list of free pages to make it available for future
+allocation or, if required, to be returned to the kernel using
+.Xr munmap 2 .
+If
+.Fa ptr
+is a null pointer, no action occurs.
+.Pp
+A
+.Fn cfree
+function is also provided for compatibility with old systems and other
+.Nm malloc
+libraries; it is simply an alias for
+.Fn free .
+.Pp
+The
+.Fn realloc
+function changes the size of the object pointed to by
+.Fa ptr
+to
+.Fa size
+bytes and returns a pointer to the (possibly moved) object.
+The contents of the object are unchanged up to the lesser
+of the new and old sizes.
+If the new size is larger, the value of the newly allocated portion
+of the object is indeterminate and uninitialized.
+If
+.Fa ptr
+is a null pointer, the
+.Fn realloc
+function behaves like the
+.Fn malloc
+function for the specified size.
+If the space cannot be allocated, the object
+pointed to by
+.Fa ptr
+is unchanged.
+If
+.Fa size
+is zero and
+.Fa ptr
+is not a null pointer, the object it points to is freed and a new zero size
+object is returned.
+.Pp
+When using
+.Fn realloc
+be careful to avoid the following idiom:
+.Bd -literal -offset indent
+size += 50;
+if ((p = realloc(p, size)) == NULL)
+        return (NULL);
+.Ed
+.Pp
+Do not adjust the variable describing how much memory has been allocated
+until the allocation has been successful.
+This can cause aberrant program behavior if the incorrect size value is used.
+In most cases, the above sample will also result in a leak of memory.
+As stated earlier, a return value of
+.Dv NULL
+indicates that the old object still remains allocated.
+Better code looks like this:
+.Bd -literal -offset indent
+newsize = size + 50;
+if ((newp = realloc(p, newsize)) == NULL) {
+        free(p);
+        p = NULL;
+        size = 0;
+        return (NULL);
+}
+p = newp;
+size = newsize;
+.Ed
+.Pp
+As with
+.Fn malloc
+it is important to ensure the new size value will not overflow;
+i.e. avoid allocations like the following:
+.Bd -literal -offset indent
+if ((newp = realloc(p, num * size)) == NULL) {
+        ...
+.Ed
+.Sh MALLOC_OPTIONS
+Malloc will first look for a symbolic link called
+.Pa /etc/malloc.conf
+and next check the environment for a variable called
+.Ev MALLOC_OPTIONS
+and finally for the global variable
+.Va malloc_options
+and scan them for flags in that order.
+Flags are single letters, uppercase means on, lowercase means off.
+.Bl -tag -width indent
+.It Cm A
+.Dq Abort .
+.Fn malloc
+will coredump the process, rather than tolerate internal
+inconsistencies or incorrect usage.
+This is the default and a very handy debugging aid,
+since the core file represents the time of failure,
+rather than when the bogus pointer was used.
+.It Cm D
+.Dq Dump .
+.Fn malloc
+will dump statistics to the file
+.Pa ./malloc.out ,
+if it already exists,
+at exit.
+This option requires the library to have been compiled with -DMALLOC_STATS in
+order to have any effect.
+.It Cm F
+.Dq Freeguard .
+Enable use after free detection.
+Unused pages on the freelist are read and write protected to
+cause a segmentation fault upon access.
+This will also switch off the delayed freeing of chunks,
+reducing random behaviour but detecting double
+.Fn free
+calls as early as possible.
+This option is intended for debugging rather than improved security
+(use the
+.Cm U
+option for security).
+.It Cm G
+.Dq Guard .
+Enable guard pages.
+Each page size or larger allocation is followed by a guard page that will
+cause a segmentation fault upon any access.
+.It Cm H
+.Dq Hint .
+Pass a hint to the kernel about pages we don't use.
+If the machine is paging a lot this may help a bit.
+.It Cm J
+.Dq Junk .
+Fill some junk into the area allocated.
+Currently junk is bytes of 0xd0 when allocating; this is pronounced
+.Dq Duh .
+\&:-)
+Freed chunks are filled with 0xdf.
+.It Cm P
+.Dq Move allocations within a page.
+Allocations larger than half a page but smaller than a page
+are aligned to the end of a page to catch buffer overruns in more
+cases.
+This is the default.
+.It Cm R
+.Dq realloc .
+Always reallocate when
+.Fn realloc
+is called, even if the initial allocation was big enough.
+This can substantially aid in compacting memory.
+.\".Pp
+.\".It Cm U
+.\".Dq utrace .
+.\"Generate entries for
+.\".Xr ktrace 1
+.\"for all operations.
+.\"Consult the source for this one.
+.It Cm S
+Enable all options suitable for security auditing.
+.It Cm U
+.Dq Free unmap .
+Enable use after free protection for larger allocations.
+Unused pages on the freelist are read and write protected to
+cause a segmentation fault upon access.
+.It Cm X
+.Dq xmalloc .
+Rather than return failure,
+.Xr abort 3
+the program with a diagnostic message on stderr.
+It is the intention that this option be set at compile time by
+including in the source:
+.Bd -literal -offset indent
+extern char *malloc_options;
+malloc_options = "X";
+.Ed
+.Pp
+Note that this will cause code that is supposed to handle
+out-of-memory conditions gracefully to abort instead.
+.It Cm Z
+.Dq Zero .
+Fill some junk into the area allocated (see
+.Cm J ) ,
+except for the exact length the user asked for, which is zeroed.
+.It Cm <
+.Dq Half the cache size .
+Decrease the size of the free page cache by a factor of two.
+.It Cm >
+.Dq Double the cache size .
+Increase the size of the free page cache by a factor of two.
+.El
+.Pp
+So to set a systemwide reduction of the cache to a quarter of the
+default size and use guard pages:
+.Dl # ln -s 'G\*(Lt\*(Lt' /etc/malloc.conf
+.Pp
+The flags are mostly for testing and debugging.
+If a program changes behavior if any of these options (except
+.Cm X )
+are used,
+it is buggy.
+.Pp
+The default number of free pages cached is 64.
+.Sh RETURN VALUES
+The
+.Fn malloc
+and
+.Fn calloc
+functions return a pointer to the allocated space if successful; otherwise,
+a null pointer is returned and
+.Va errno
+is set to
+.Er ENOMEM .
+.Pp
+The
+.Fn free
+and
+.Fn cfree
+functions return no value.
+.Pp
+The
+.Fn realloc
+function returns a pointer to the (possibly moved) allocated space
+if successful; otherwise, a null pointer is returned and
+.Va errno
+is set to
+.Er ENOMEM .
+.Sh ENVIRONMENT
+.Bl -tag -width Ev
+.It Ev MALLOC_OPTIONS
+See above.
+.El
+.Sh FILES
+.Bl -tag -width "/etc/malloc.conf"
+.It Pa /etc/malloc.conf
+symbolic link to filename containing option flags
+.El
+.Sh DIAGNOSTICS
+If
+.Fn malloc ,
+.Fn calloc ,
+.Fn realloc ,
+or
+.Fn free
+detect an error condition,
+a message will be printed to file descriptor
+2 (not using stdio).
+Errors will result in the process being aborted,
+unless the
+.Cm a
+option has been specified.
+.Pp
+Here is a brief description of the error messages and what they mean:
+.Bl -tag -width Ds
+.It Dq out of memory
+If the
+.Cm X
+option is specified it is an error for
+.Fn malloc ,
+.Fn calloc ,
+or
+.Fn realloc
+to return
+.Dv NULL .
+.It Dq malloc init mmap failed
+This is a rather weird condition that is most likely to indicate a
+seriously overloaded system or a ulimit restriction.
+.It Dq bogus pointer (double free?)
+An attempt to
+.Fn free
+or
+.Fn realloc
+an unallocated pointer was made.
+.It Dq chunk is already free
+There was an attempt to free a chunk that had already been freed.
+.It Dq modified chunk-pointer
+The pointer passed to
+.Fn free
+or
+.Fn realloc
+has been modified.
+.It Dq recursive call
+An attempt was made to call recursively into these functions, i.e., from a
+signal handler.
+This behavior is not supported.
+In particular, signal handlers should
+.Em not
+use any of the
+.Fn malloc
+functions nor utilize any other functions which may call
+.Fn malloc
+(e.g.,
+.Xr stdio 3
+routines).
+.It Dq unknown char in MALLOC_OPTIONS
+We found something we didn't understand.
+.It Dq malloc cache overflow/underflow
+The internal malloc page cache has been corrupted.
+.It Dq malloc free slot lost
+The internal malloc page cache has been corrupted.
+.It Dq guard size
+An inconsistent guard size was detected.
+.It any other error
+.Fn malloc
+detected an internal error;
+consult sources and/or wizards.
+.El
+.Sh SEE ALSO
+.Xr brk 2 ,
+.Xr mmap 2 ,
+.Xr munmap 2 ,
+.Xr alloca 3 ,
+.Xr getpagesize 3 ,
+.Xr posix_memalign 3
+.Sh STANDARDS
+The
+.Fn malloc
+function conforms to
+.St -ansiC .
+.Sh HISTORY
+A
+.Fn free
+internal kernel function and a predecessor to
+.Fn malloc ,
+.Fn alloc ,
+first appeared in
+.At v1 .
+C library functions
+.Fn alloc
+and
+.Fn free
+appeared in
+.At v6 .
+The functions
+.Fn malloc ,
+.Fn calloc ,
+and
+.Fn realloc
+first appeared in
+.At v7 .
+.Pp
+A new implementation by Chris Kingsley was introduced in
+.Bx 4.2 ,
+followed by a complete rewrite by Poul-Henning Kamp which appeared in
+.Fx 2.2
+and was included in
+.Ox 2.0 .
+These implementations were all
+.Xr sbrk 2
+based.
+In
+.Ox 3.8 ,
+Thierry Deval rewrote
+.Nm
+to use the
+.Xr mmap 2
+system call,
+making the page addresses returned by
+.Nm
+random.
+A rewrite by Otto Moerbeek introducing a new central data structure and more
+randomization appeared in
+.Ox 4.4 .
diff --git a/src/lib/libc/stdlib/malloc.c b/src/lib/libc/stdlib/malloc.c
new file mode 100644
index 0000000000..446a1ca254
--- /dev/null
+++ b/src/lib/libc/stdlib/malloc.c
@@ -0,0 +1,1820 @@
+/*      $OpenBSD: malloc.c,v 1.152 2014/04/03 16:18:11 schwarze Exp $   */
+/*
+ * Copyright (c) 2008, 2010, 2011 Otto Moerbeek <otto@drijf.net>
+ * Copyright (c) 2012 Matthew Dempsky <matthew@openbsd.org>
+ * Copyright (c) 2008 Damien Miller <djm@openbsd.org>
+ * Copyright (c) 2000 Poul-Henning Kamp <phk@FreeBSD.org>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+/*
+ * If we meet some day, and you think this stuff is worth it, you
+ * can buy me a beer in return. Poul-Henning Kamp
+ */
+
+/* #define MALLOC_STATS */
+
+#include <sys/types.h>
+#include <sys/param.h>
+#include <sys/queue.h>
+#include <sys/mman.h>
+#include <sys/uio.h>
+#include <errno.h>
+#include <stdint.h>
+#include <stdlib.h>
+#include <string.h>
+#include <stdio.h>
+#include <unistd.h>
+
+#ifdef MALLOC_STATS
+#include <sys/tree.h>
+#include <fcntl.h>
+#endif
+
+#include "thread_private.h"
+
+#if defined(__sparc__) && !defined(__sparcv9__)
+#define MALLOC_PAGESHIFT        (13U)
+#elif defined(__mips64__)
+#define MALLOC_PAGESHIFT        (14U)
+#else
+#define MALLOC_PAGESHIFT        (PAGE_SHIFT)
+#endif
+
+#define MALLOC_MINSHIFT         4
+#define MALLOC_MAXSHIFT         (MALLOC_PAGESHIFT - 1)
+#define MALLOC_PAGESIZE         (1UL << MALLOC_PAGESHIFT)
+#define MALLOC_MINSIZE          (1UL << MALLOC_MINSHIFT)
+#define MALLOC_PAGEMASK         (MALLOC_PAGESIZE - 1)
+#define MASK_POINTER(p)         ((void *)(((uintptr_t)(p)) & ~MALLOC_PAGEMASK))
+
+#define MALLOC_MAXCHUNK         (1 << MALLOC_MAXSHIFT)
+#define MALLOC_MAXCACHE         256
+#define MALLOC_DELAYED_CHUNKS   15      /* max of getrnibble() */
+#define MALLOC_INITIAL_REGIONS  512
+#define MALLOC_DEFAULT_CACHE    64
+
+/*
+ * When the P option is active, we move allocations between half a page
+ * and a whole page towards the end, subject to alignment constraints.
+ * This is the extra headroom we allow. Set to zero to be the most
+ * strict.
+ */
+#define MALLOC_LEEWAY           0
+
+#define PAGEROUND(x)  (((x) + (MALLOC_PAGEMASK)) & ~MALLOC_PAGEMASK)
+
+/*
+ * What to use for Junk.  This is the byte value we use to fill with
+ * when the 'J' option is enabled. Use SOME_JUNK right after alloc,
+ * and SOME_FREEJUNK right before free.
+ */
+#define SOME_JUNK               0xd0    /* as in "Duh" :-) */
+#define SOME_FREEJUNK           0xdf
+
+#define MMAP(sz)        mmap(NULL, (size_t)(sz), PROT_READ | PROT_WRITE, \
+    MAP_ANON | MAP_PRIVATE, -1, (off_t) 0)
+
+#define MMAPA(a,sz)     mmap((a), (size_t)(sz), PROT_READ | PROT_WRITE, \
+    MAP_ANON | MAP_PRIVATE, -1, (off_t) 0)
+
+#define MQUERY(a, sz)   mquery((a), (size_t)(sz), PROT_READ | PROT_WRITE, \
+    MAP_ANON | MAP_PRIVATE | MAP_FIXED, -1, (off_t)0)
+
+struct region_info {
+        void *p;                /* page; low bits used to mark chunks */
+        uintptr_t size;         /* size for pages, or chunk_info pointer */
+#ifdef MALLOC_STATS
+        void *f;                /* where allocated from */
+#endif
+};
+
+LIST_HEAD(chunk_head, chunk_info);
+
+struct dir_info {
+        u_int32_t canary1;
+        struct region_info *r;          /* region slots */
+        size_t regions_total;           /* number of region slots */
+        size_t regions_free;            /* number of free slots */
+                                        /* lists of free chunk info structs */
+        struct chunk_head chunk_info_list[MALLOC_MAXSHIFT + 1];
+                                        /* lists of chunks with free slots */
+        struct chunk_head chunk_dir[MALLOC_MAXSHIFT + 1];
+        size_t free_regions_size;       /* free pages cached */
+                                        /* free pages cache */
+        struct region_info free_regions[MALLOC_MAXCACHE];
+                                        /* delayed free chunk slots */
+        void *delayed_chunks[MALLOC_DELAYED_CHUNKS + 1];
+        u_short chunk_start;
+#ifdef MALLOC_STATS
+        size_t inserts;
+        size_t insert_collisions;
+        size_t finds;
+        size_t find_collisions;
+        size_t deletes;
+        size_t delete_moves;
+        size_t cheap_realloc_tries;
+        size_t cheap_reallocs;
+#define STATS_INC(x) ((x)++)
+#define STATS_ZERO(x) ((x) = 0)
+#define STATS_SETF(x,y) ((x)->f = (y))
+#else
+#define STATS_INC(x)    /* nothing */
+#define STATS_ZERO(x)   /* nothing */
+#define STATS_SETF(x,y) /* nothing */
+#endif /* MALLOC_STATS */
+        u_int32_t canary2;
+};
+#define DIR_INFO_RSZ    ((sizeof(struct dir_info) + MALLOC_PAGEMASK) & \
+                        ~MALLOC_PAGEMASK)
+
+/*
+ * This structure describes a page worth of chunks.
+ *
+ * How many bits per u_short in the bitmap
+ */
+#define MALLOC_BITS             (NBBY * sizeof(u_short))
+struct chunk_info {
+        LIST_ENTRY(chunk_info) entries;
+        void *page;                     /* pointer to the page */
+        u_int32_t canary;
+        u_short size;                   /* size of this page's chunks */
+        u_short shift;                  /* how far to shift for this size */
+        u_short free;                   /* how many free chunks */
+        u_short total;                  /* how many chunk */
+                                        /* which chunks are free */
+        u_short bits[1];
+};
+
+struct malloc_readonly {
+        struct dir_info *g_pool;        /* Main bookkeeping information */
+        int     malloc_abort;           /* abort() on error */
+        int     malloc_freenow;         /* Free quickly - disable chunk rnd */
+        int     malloc_freeunmap;       /* mprotect free pages PROT_NONE? */
+        int     malloc_hint;            /* call madvice on free pages?  */
+        int     malloc_junk;            /* junk fill? */
+        int     malloc_move;            /* move allocations to end of page? */
+        int     malloc_realloc;         /* always realloc? */
+        int     malloc_xmalloc;         /* xmalloc behaviour? */
+        int     malloc_zero;            /* zero fill? */
+        size_t  malloc_guard;           /* use guard pages after allocations? */
+        u_int   malloc_cache;           /* free pages we cache */
+#ifdef MALLOC_STATS
+        int     malloc_stats;           /* dump statistics at end */
+#endif
+        u_int32_t malloc_canary;        /* Matched against ones in g_pool */
+};
+
+/* This object is mapped PROT_READ after initialisation to prevent tampering */
+static union {
+        struct malloc_readonly mopts;
+        u_char _pad[MALLOC_PAGESIZE];
+} malloc_readonly __attribute__((aligned(MALLOC_PAGESIZE)));
+#define mopts   malloc_readonly.mopts
+#define g_pool  mopts.g_pool
+
+char            *malloc_options;        /* compile-time options */
+
+static char     *malloc_func;           /* current function */
+static int      malloc_active;          /* status of malloc */
+
+static size_t   malloc_guarded;         /* bytes used for guards */
+static size_t   malloc_used;            /* bytes allocated */
+
+static size_t rnibblesused;             /* random nibbles used */
+static u_char rbytes[512];              /* random bytes */
+static u_char getrnibble(void);
+
+extern char     *__progname;
+
+#ifdef MALLOC_STATS
+void malloc_dump(int);
+static void malloc_exit(void);
+#define CALLER  __builtin_return_address(0)
+#else
+#define CALLER  NULL
+#endif
+
+/* low bits of r->p determine size: 0 means >= page size and p->size holding
+ *  real size, otherwise r->size is a shift count, or 1 for malloc(0)
+ */
+#define REALSIZE(sz, r)                                         \
+        (sz) = (uintptr_t)(r)->p & MALLOC_PAGEMASK,             \
+        (sz) = ((sz) == 0 ? (r)->size : ((sz) == 1 ? 0 : (1 << ((sz)-1))))
+
+static inline size_t
+hash(void *p)
+{
+        size_t sum;
+        union {
+                uintptr_t p;
+                unsigned short a[sizeof(void *) / sizeof(short)];
+        } u;
+        u.p = (uintptr_t)p >> MALLOC_PAGESHIFT;
+        sum = u.a[0];
+        sum = (sum << 7) - sum + u.a[1];
+#ifdef __LP64__
+        sum = (sum << 7) - sum + u.a[2];
+        sum = (sum << 7) - sum + u.a[3];
+#endif
+        return sum;
+}
+
+static void
+wrterror(char *msg, void *p)
+{
+        char            *q = " error: ";
+        struct iovec    iov[6];
+        char            buf[20];
+        int             saved_errno = errno;
+
+        iov[0].iov_base = __progname;
+        iov[0].iov_len = strlen(__progname);
+        iov[1].iov_base = malloc_func;
+        iov[1].iov_len = strlen(malloc_func);
+        iov[2].iov_base = q;
+        iov[2].iov_len = strlen(q);
+        iov[3].iov_base = msg;
+        iov[3].iov_len = strlen(msg);
+        iov[4].iov_base = buf;
+        if (p == NULL)
+                iov[4].iov_len = 0;
+        else {
+                snprintf(buf, sizeof(buf), " %p", p);
+                iov[4].iov_len = strlen(buf);
+        }
+        iov[5].iov_base = "\n";
+        iov[5].iov_len = 1;
+        writev(STDERR_FILENO, iov, 6);
+
+#ifdef MALLOC_STATS
+        if (mopts.malloc_stats)
+                malloc_dump(STDERR_FILENO);
+#endif /* MALLOC_STATS */
+
+        errno = saved_errno;
+        if (mopts.malloc_abort)
+                abort();
+}
+
+static void
+rbytes_init(void)
+{
+        arc4random_buf(rbytes, sizeof(rbytes));
+        rnibblesused = 0;
+}
+
+static inline u_char
+getrnibble(void)
+{
+        u_char x;
+
+        if (rnibblesused >= 2 * sizeof(rbytes))
+                rbytes_init();
+        x = rbytes[rnibblesused++ / 2];
+        return (rnibblesused & 1 ? x & 0xf : x >> 4);
+}
+
+/*
+ * Cache maintenance. We keep at most malloc_cache pages cached.
+ * If the cache is becoming full, unmap pages in the cache for real,
+ * and then add the region to the cache
+ * Opposed to the regular region data structure, the sizes in the
+ * cache are in MALLOC_PAGESIZE units.
+ */
+static void
+unmap(struct dir_info *d, void *p, size_t sz)
+{
+        size_t psz = sz >> MALLOC_PAGESHIFT;
+        size_t rsz, tounmap;
+        struct region_info *r;
+        u_int i, offset;
+
+        if (sz != PAGEROUND(sz)) {
+                wrterror("munmap round", NULL);
+                return;
+        }
+
+        if (psz > mopts.malloc_cache) {
+                if (munmap(p, sz))
+                        wrterror("munmap", p);
+                malloc_used -= sz;
+                return;
+        }
+        tounmap = 0;
+        rsz = mopts.malloc_cache - d->free_regions_size;
+        if (psz > rsz)
+                tounmap = psz - rsz;
+        offset = getrnibble() + (getrnibble() << 4);
+        for (i = 0; tounmap > 0 && i < mopts.malloc_cache; i++) {
+                r = &d->free_regions[(i + offset) & (mopts.malloc_cache - 1)];
+                if (r->p != NULL) {
+                        rsz = r->size << MALLOC_PAGESHIFT;
+                        if (munmap(r->p, rsz))
+                                wrterror("munmap", r->p);
+                        r->p = NULL;
+                        if (tounmap > r->size)
+                                tounmap -= r->size;
+                        else
+                                tounmap = 0;
+                        d->free_regions_size -= r->size;
+                        r->size = 0;
+                        malloc_used -= rsz;
+                }
+        }
+        if (tounmap > 0)
+                wrterror("malloc cache underflow", NULL);
+        for (i = 0; i < mopts.malloc_cache; i++) {
+                r = &d->free_regions[(i + offset) & (mopts.malloc_cache - 1)];
+                if (r->p == NULL) {
+                        if (mopts.malloc_hint)
+                                madvise(p, sz, MADV_FREE);
+                        if (mopts.malloc_freeunmap)
+                                mprotect(p, sz, PROT_NONE);
+                        r->p = p;
+                        r->size = psz;
+                        d->free_regions_size += psz;
+                        break;
+                }
+        }
+        if (i == mopts.malloc_cache)
+                wrterror("malloc free slot lost", NULL);
+        if (d->free_regions_size > mopts.malloc_cache)
+                wrterror("malloc cache overflow", NULL);
+}
+
+static void
+zapcacheregion(struct dir_info *d, void *p, size_t len)
+{
+        u_int i;
+        struct region_info *r;
+        size_t rsz;
+
+        for (i = 0; i < mopts.malloc_cache; i++) {
+                r = &d->free_regions[i];
+                if (r->p >= p && r->p <= (void *)((char *)p + len)) {
+                        rsz = r->size << MALLOC_PAGESHIFT;
+                        if (munmap(r->p, rsz))
+                                wrterror("munmap", r->p);
+                        r->p = NULL;
+                        d->free_regions_size -= r->size;
+                        r->size = 0;
+                        malloc_used -= rsz;
+                }
+        }
+}
+
+static void *
+map(struct dir_info *d, size_t sz, int zero_fill)
+{
+        size_t psz = sz >> MALLOC_PAGESHIFT;
+        struct region_info *r, *big = NULL;
+        u_int i, offset;
+        void *p;
+
+        if (mopts.malloc_canary != (d->canary1 ^ (u_int32_t)(uintptr_t)d) ||
+            d->canary1 != ~d->canary2)
+                wrterror("internal struct corrupt", NULL);
+        if (sz != PAGEROUND(sz)) {
+                wrterror("map round", NULL);
+                return MAP_FAILED;
+        }
+        if (psz > d->free_regions_size) {
+                p = MMAP(sz);
+                if (p != MAP_FAILED)
+                        malloc_used += sz;
+                /* zero fill not needed */
+                return p;
+        }
+        offset = getrnibble() + (getrnibble() << 4);
+        for (i = 0; i < mopts.malloc_cache; i++) {
+                r = &d->free_regions[(i + offset) & (mopts.malloc_cache - 1)];
+                if (r->p != NULL) {
+                        if (r->size == psz) {
+                                p = r->p;
+                                if (mopts.malloc_freeunmap)
+                                        mprotect(p, sz, PROT_READ | PROT_WRITE);
+                                if (mopts.malloc_hint)
+                                        madvise(p, sz, MADV_NORMAL);
+                                r->p = NULL;
+                                r->size = 0;
+                                d->free_regions_size -= psz;
+                                if (zero_fill)
+                                        memset(p, 0, sz);
+                                else if (mopts.malloc_junk &&
+                                    mopts.malloc_freeunmap)
+                                        memset(p, SOME_FREEJUNK, sz);
+                                return p;
+                        } else if (r->size > psz)
+                                big = r;
+                }
+        }
+        if (big != NULL) {
+                r = big;
+                p = (char *)r->p + ((r->size - psz) << MALLOC_PAGESHIFT);
+                if (mopts.malloc_freeunmap)
+                        mprotect(p, sz, PROT_READ | PROT_WRITE);
+                if (mopts.malloc_hint)
+                        madvise(p, sz, MADV_NORMAL);
+                r->size -= psz;
+                d->free_regions_size -= psz;
+                if (zero_fill)
+                        memset(p, 0, sz);
+                else if (mopts.malloc_junk && mopts.malloc_freeunmap)
+                        memset(p, SOME_FREEJUNK, sz);
+                return p;
+        }
+        p = MMAP(sz);
+        if (p != MAP_FAILED)
+                malloc_used += sz;
+        if (d->free_regions_size > mopts.malloc_cache)
+                wrterror("malloc cache", NULL);
+        /* zero fill not needed */
+        return p;
+}
+
+/*
+ * Initialize a dir_info, which should have been cleared by caller
+ */
+static int
+omalloc_init(struct dir_info **dp)
+{
+        char *p, b[64];
+        int i, j;
+        size_t d_avail, regioninfo_size;
+        struct dir_info *d;
+
+        rbytes_init();
+
+        /*
+         * Default options
+         */
+        mopts.malloc_abort = 1;
+        mopts.malloc_move = 1;
+        mopts.malloc_cache = MALLOC_DEFAULT_CACHE;
+
+        for (i = 0; i < 3; i++) {
+                switch (i) {
+                case 0:
+                        j = readlink("/etc/malloc.conf", b, sizeof b - 1);
+                        if (j <= 0)
+                                continue;
+                        b[j] = '\0';
+                        p = b;
+                        break;
+                case 1:
+                        if (issetugid() == 0)
+                                p = getenv("MALLOC_OPTIONS");
+                        else
+                                continue;
+                        break;
+                case 2:
+                        p = malloc_options;
+                        break;
+                default:
+                        p = NULL;
+                }
+
+                for (; p != NULL && *p != '\0'; p++) {
+                        switch (*p) {
+                        case '>':
+                                mopts.malloc_cache <<= 1;
+                                if (mopts.malloc_cache > MALLOC_MAXCACHE)
+                                        mopts.malloc_cache = MALLOC_MAXCACHE;
+                                break;
+                        case '<':
+                                mopts.malloc_cache >>= 1;
+                                break;
+                        case 'a':
+                                mopts.malloc_abort = 0;
+                                break;
+                        case 'A':
+                                mopts.malloc_abort = 1;
+                                break;
+#ifdef MALLOC_STATS
+                        case 'd':
+                                mopts.malloc_stats = 0;
+                                break;
+                        case 'D':
+                                mopts.malloc_stats = 1;
+                                break;
+#endif /* MALLOC_STATS */
+                        case 'f':
+                                mopts.malloc_freenow = 0;
+                                mopts.malloc_freeunmap = 0;
+                                break;
+                        case 'F':
+                                mopts.malloc_freenow = 1;
+                                mopts.malloc_freeunmap = 1;
+                                break;
+                        case 'g':
+                                mopts.malloc_guard = 0;
+                                break;
+                        case 'G':
+                                mopts.malloc_guard = MALLOC_PAGESIZE;
+                                break;
+                        case 'h':
+                                mopts.malloc_hint = 0;
+                                break;
+                        case 'H':
+                                mopts.malloc_hint = 1;
+                                break;
+                        case 'j':
+                                mopts.malloc_junk = 0;
+                                break;
+                        case 'J':
+                                mopts.malloc_junk = 1;
+                                break;
+                        case 'n':
+                        case 'N':
+                                break;
+                        case 'p':
+                                mopts.malloc_move = 0;
+                                break;
+                        case 'P':
+                                mopts.malloc_move = 1;
+                                break;
+                        case 'r':
+                                mopts.malloc_realloc = 0;
+                                break;
+                        case 'R':
+                                mopts.malloc_realloc = 1;
+                                break;
+                        case 's':
+                                mopts.malloc_freeunmap = mopts.malloc_junk = 0;
+                                mopts.malloc_guard = 0;
+                                mopts.malloc_cache = MALLOC_DEFAULT_CACHE;
+                                break;
+                        case 'S':
+                                mopts.malloc_freeunmap = mopts.malloc_junk = 1;
+                                mopts.malloc_guard = MALLOC_PAGESIZE;
+                                mopts.malloc_cache = 0;
+                                break;
+                        case 'u':
+                                mopts.malloc_freeunmap = 0;
+                                break;
+                        case 'U':
+                                mopts.malloc_freeunmap = 1;
+                                break;
+                        case 'x':
+                                mopts.malloc_xmalloc = 0;
+                                break;
+                        case 'X':
+                                mopts.malloc_xmalloc = 1;
+                                break;
+                        case 'z':
+                                mopts.malloc_zero = 0;
+                                break;
+                        case 'Z':
+                                mopts.malloc_zero = 1;
+                                break;
+                        default: {
+                                static const char q[] = "malloc() warning: "
+                                    "unknown char in MALLOC_OPTIONS\n";
+                                write(STDERR_FILENO, q, sizeof(q) - 1);
+                                break;
+                        }
+                        }
+                }
+        }
+
+        /*
+         * We want junk in the entire allocation, and zero only in the part
+         * the user asked for.
+         */
+        if (mopts.malloc_zero)
+                mopts.malloc_junk = 1;
+
+#ifdef MALLOC_STATS
+        if (mopts.malloc_stats && (atexit(malloc_exit) == -1)) {
+                static const char q[] = "malloc() warning: atexit(2) failed."
+                    " Will not be able to dump stats on exit\n";
+                write(STDERR_FILENO, q, sizeof(q) - 1);
+        }
+#endif /* MALLOC_STATS */
+
+        while ((mopts.malloc_canary = arc4random()) == 0)
+                ;
+
+        /*
+         * Allocate dir_info with a guard page on either side. Also
+         * randomise offset inside the page at which the dir_info
+         * lies (subject to alignment by 1 << MALLOC_MINSHIFT)
+         */
+        if ((p = MMAP(DIR_INFO_RSZ + (MALLOC_PAGESIZE * 2))) == MAP_FAILED)
+                return -1;
+        mprotect(p, MALLOC_PAGESIZE, PROT_NONE);
+        mprotect(p + MALLOC_PAGESIZE + DIR_INFO_RSZ,
+            MALLOC_PAGESIZE, PROT_NONE);
+        d_avail = (DIR_INFO_RSZ - sizeof(*d)) >> MALLOC_MINSHIFT;
+        d = (struct dir_info *)(p + MALLOC_PAGESIZE +
+            (arc4random_uniform(d_avail) << MALLOC_MINSHIFT));
+
+        d->regions_free = d->regions_total = MALLOC_INITIAL_REGIONS;
+        regioninfo_size = d->regions_total * sizeof(struct region_info);
+        d->r = MMAP(regioninfo_size);
+        if (d->r == MAP_FAILED) {
+                wrterror("malloc init mmap failed", NULL);
+                d->regions_total = 0;
+                return 1;
+        }
+        for (i = 0; i <= MALLOC_MAXSHIFT; i++) {
+                LIST_INIT(&d->chunk_info_list[i]);
+                LIST_INIT(&d->chunk_dir[i]);
+        }
+        malloc_used += regioninfo_size;
+        d->canary1 = mopts.malloc_canary ^ (u_int32_t)(uintptr_t)d;
+        d->canary2 = ~d->canary1;
+
+        *dp = d;
+
+        /*
+         * Options have been set and will never be reset.
+         * Prevent further tampering with them.
+         */
+        if (((uintptr_t)&malloc_readonly & MALLOC_PAGEMASK) == 0)
+                mprotect(&malloc_readonly, sizeof(malloc_readonly), PROT_READ);
+
+        return 0;
+}
+
+static int
+omalloc_grow(struct dir_info *d)
+{
+        size_t newtotal;
+        size_t newsize;
+        size_t mask;
+        size_t i;
+        struct region_info *p;
+
+        if (d->regions_total > SIZE_MAX / sizeof(struct region_info) / 2 )
+                return 1;
+
+        newtotal = d->regions_total * 2;
+        newsize = newtotal * sizeof(struct region_info);
+        mask = newtotal - 1;
+
+        p = MMAP(newsize);
+        if (p == MAP_FAILED)
+                return 1;
+        
+        malloc_used += newsize;
+        memset(p, 0, newsize);
+        STATS_ZERO(d->inserts);
+        STATS_ZERO(d->insert_collisions);
+        for (i = 0; i < d->regions_total; i++) { 
+                void *q = d->r[i].p;
+                if (q != NULL) {
+                        size_t index = hash(q) & mask;
+                        STATS_INC(d->inserts);
+                        while (p[index].p != NULL) {
+                                index = (index - 1) & mask;
+                                STATS_INC(d->insert_collisions);
+                        }
+                        p[index] = d->r[i];
+                }
+        }
+        /* avoid pages containing meta info to end up in cache */
+        if (munmap(d->r, d->regions_total * sizeof(struct region_info))) 
+                wrterror("munmap", d->r);
+        else
+                malloc_used -= d->regions_total * sizeof(struct region_info);
+        d->regions_free = d->regions_free + d->regions_total;
+        d->regions_total = newtotal;
+        d->r = p;
+        return 0;
+}
+
+static struct chunk_info *
+alloc_chunk_info(struct dir_info *d, int bits)
+{
+        struct chunk_info *p;
+        size_t size, count;
+
+        if (bits == 0)
+                count = MALLOC_PAGESIZE / MALLOC_MINSIZE;
+        else
+                count = MALLOC_PAGESIZE >> bits;
+
+        size = howmany(count, MALLOC_BITS);
+        size = sizeof(struct chunk_info) + (size - 1) * sizeof(u_short);
+        size = ALIGN(size);
+
+        if (LIST_EMPTY(&d->chunk_info_list[bits])) {
+                char *q;
+                int i;
+
+                q = MMAP(MALLOC_PAGESIZE);
+                if (q == MAP_FAILED)
+                        return NULL;
+                malloc_used += MALLOC_PAGESIZE;
+                count = MALLOC_PAGESIZE / size;
+                for (i = 0; i < count; i++, q += size)
+                        LIST_INSERT_HEAD(&d->chunk_info_list[bits],
+                            (struct chunk_info *)q, entries);
+        }
+        p = LIST_FIRST(&d->chunk_info_list[bits]);
+        LIST_REMOVE(p, entries);
+        memset(p, 0, size);
+        p->canary = d->canary1;
+        return p;
+}
+
+
+/* 
+ * The hashtable uses the assumption that p is never NULL. This holds since
+ * non-MAP_FIXED mappings with hint 0 start at BRKSIZ.
+ */
+static int
+insert(struct dir_info *d, void *p, size_t sz, void *f)
+{
+        size_t index;
+        size_t mask;
+        void *q;
+
+        if (d->regions_free * 4 < d->regions_total) {
+                if (omalloc_grow(d))
+                        return 1;
+        }
+        mask = d->regions_total - 1;
+        index = hash(p) & mask;
+        q = d->r[index].p;
+        STATS_INC(d->inserts);
+        while (q != NULL) {
+                index = (index - 1) & mask;
+                q = d->r[index].p;
+                STATS_INC(d->insert_collisions);
+        }
+        d->r[index].p = p;
+        d->r[index].size = sz;
+#ifdef MALLOC_STATS
+        d->r[index].f = f;
+#endif
+        d->regions_free--;
+        return 0;
+}
+
+static struct region_info *
+find(struct dir_info *d, void *p)
+{
+        size_t index;
+        size_t mask = d->regions_total - 1;
+        void *q, *r;
+
+        if (mopts.malloc_canary != (d->canary1 ^ (u_int32_t)(uintptr_t)d) ||
+            d->canary1 != ~d->canary2)
+                wrterror("internal struct corrupt", NULL);
+        p = MASK_POINTER(p);
+        index = hash(p) & mask;
+        r = d->r[index].p;
+        q = MASK_POINTER(r);
+        STATS_INC(d->finds);
+        while (q != p && r != NULL) {
+                index = (index - 1) & mask;
+                r = d->r[index].p;
+                q = MASK_POINTER(r);
+                STATS_INC(d->find_collisions);
+        }
+        return (q == p && r != NULL) ? &d->r[index] : NULL;
+}
+
+static void
+delete(struct dir_info *d, struct region_info *ri)
+{
+        /* algorithm R, Knuth Vol III section 6.4 */
+        size_t mask = d->regions_total - 1;
+        size_t i, j, r;
+
+        if (d->regions_total & (d->regions_total - 1))
+                wrterror("regions_total not 2^x", NULL);
+        d->regions_free++;
+        STATS_INC(g_pool->deletes);
+
+        i = ri - d->r;
+        for (;;) {
+                d->r[i].p = NULL;
+                d->r[i].size = 0;
+                j = i;
+                for (;;) {
+                        i = (i - 1) & mask;
+                        if (d->r[i].p == NULL)
+                                return;
+                        r = hash(d->r[i].p) & mask;
+                        if ((i <= r && r < j) || (r < j && j < i) ||
+                            (j < i && i <= r))
+                                continue;
+                        d->r[j] = d->r[i];
+                        STATS_INC(g_pool->delete_moves);
+                        break;
+                }
+
+        }
+}
+ 
+/*
+ * Allocate a page of chunks
+ */
+static struct chunk_info *
+omalloc_make_chunks(struct dir_info *d, int bits)
+{
+        struct chunk_info *bp;
+        void            *pp;
+        int             i, k;
+
+        /* Allocate a new bucket */
+        pp = map(d, MALLOC_PAGESIZE, 0);
+        if (pp == MAP_FAILED)
+                return NULL;
+
+        bp = alloc_chunk_info(d, bits);
+        if (bp == NULL) {
+                unmap(d, pp, MALLOC_PAGESIZE);
+                return NULL;
+        }
+
+        /* memory protect the page allocated in the malloc(0) case */
+        if (bits == 0) {
+                bp->size = 0;
+                bp->shift = 1;
+                i = MALLOC_MINSIZE - 1;
+                while (i >>= 1)
+                        bp->shift++;
+                bp->total = bp->free = MALLOC_PAGESIZE >> bp->shift;
+                bp->page = pp;
+
+                k = mprotect(pp, MALLOC_PAGESIZE, PROT_NONE);
+                if (k < 0) {
+                        unmap(d, pp, MALLOC_PAGESIZE);
+                        LIST_INSERT_HEAD(&d->chunk_info_list[0], bp, entries);
+                        return NULL;
+                }
+        } else {
+                bp->size = 1U << bits;
+                bp->shift = bits;
+                bp->total = bp->free = MALLOC_PAGESIZE >> bits;
+                bp->page = pp;
+        }
+
+        /* set all valid bits in the bitmap */
+        k = bp->total;
+        i = 0;
+
+        /* Do a bunch at a time */
+        for (; (k - i) >= MALLOC_BITS; i += MALLOC_BITS)
+                bp->bits[i / MALLOC_BITS] = (u_short)~0U;
+
+        for (; i < k; i++)
+                bp->bits[i / MALLOC_BITS] |= (u_short)1U << (i % MALLOC_BITS);
+
+        LIST_INSERT_HEAD(&d->chunk_dir[bits], bp, entries);
+
+        bits++;
+        if ((uintptr_t)pp & bits)
+                wrterror("pp & bits", pp);
+
+        insert(d, (void *)((uintptr_t)pp | bits), (uintptr_t)bp, NULL);
+        return bp;
+}
+
+
+/*
+ * Allocate a chunk
+ */
+static void *
+malloc_bytes(struct dir_info *d, size_t size, void *f)
+{
+        int             i, j;
+        size_t          k;
+        u_short         u, *lp;
+        struct chunk_info *bp;
+
+        if (mopts.malloc_canary != (d->canary1 ^ (u_int32_t)(uintptr_t)d) ||
+            d->canary1 != ~d->canary2)
+                wrterror("internal struct corrupt", NULL);
+        /* Don't bother with anything less than this */
+        /* unless we have a malloc(0) requests */
+        if (size != 0 && size < MALLOC_MINSIZE)
+                size = MALLOC_MINSIZE;
+
+        /* Find the right bucket */
+        if (size == 0)
+                j = 0;
+        else {
+                j = MALLOC_MINSHIFT;
+                i = (size - 1) >> (MALLOC_MINSHIFT - 1);
+                while (i >>= 1)
+                        j++;
+        }
+
+        /* If it's empty, make a page more of that size chunks */
+        if (LIST_EMPTY(&d->chunk_dir[j])) {
+                bp = omalloc_make_chunks(d, j);
+                if (bp == NULL)
+                        return NULL;
+        } else
+                bp = LIST_FIRST(&d->chunk_dir[j]);
+
+        if (bp->canary != d->canary1)
+                wrterror("chunk info corrupted", NULL);
+
+        i = d->chunk_start;
+        if (bp->free > 1)
+                i += getrnibble();
+        if (i >= bp->total)
+                i &= bp->total - 1;
+        for (;;) {
+                for (;;) {
+                        lp = &bp->bits[i / MALLOC_BITS];
+                        if (!*lp) {
+                                i += MALLOC_BITS;
+                                i &= ~(MALLOC_BITS - 1); 
+                                if (i >= bp->total)
+                                        i = 0;
+                        } else
+                                break;
+                }
+                k = i % MALLOC_BITS;
+                u = 1 << k;
+                if (*lp & u)
+                        break;
+                if (++i >= bp->total)
+                        i = 0;
+        }
+        d->chunk_start += i + 1;
+#ifdef MALLOC_STATS
+        if (i == 0) {
+                struct region_info *r = find(d, bp->page);
+                r->f = f;
+        }
+#endif
+
+        *lp ^= u;
+
+        /* If there are no more free, remove from free-list */
+        if (!--bp->free)
+                LIST_REMOVE(bp, entries);
+
+        /* Adjust to the real offset of that chunk */
+        k += (lp - bp->bits) * MALLOC_BITS;
+        k <<= bp->shift;
+
+        if (mopts.malloc_junk && bp->size > 0)
+                memset((char *)bp->page + k, SOME_JUNK, bp->size);
+        return ((char *)bp->page + k);
+}
+
+
+/*
+ * Free a chunk, and possibly the page it's on, if the page becomes empty.
+ */
+static void
+free_bytes(struct dir_info *d, struct region_info *r, void *ptr)
+{
+        struct chunk_head *mp;
+        struct chunk_info *info;
+        int i;
+
+        info = (struct chunk_info *)r->size;
+        if (info->canary != d->canary1)
+                wrterror("chunk info corrupted", NULL);
+
+        /* Find the chunk number on the page */
+        i = ((uintptr_t)ptr & MALLOC_PAGEMASK) >> info->shift;
+
+        if ((uintptr_t)ptr & ((1U << (info->shift)) - 1)) {
+                wrterror("modified chunk-pointer", ptr);
+                return;
+        }
+        if (info->bits[i / MALLOC_BITS] & (1U << (i % MALLOC_BITS))) {
+                wrterror("chunk is already free", ptr);
+                return;
+        }
+
+        info->bits[i / MALLOC_BITS] |= 1U << (i % MALLOC_BITS);
+        info->free++;
+
+        if (info->size != 0)
+                mp = d->chunk_dir + info->shift;
+        else
+                mp = d->chunk_dir;
+
+        if (info->free == 1) {
+                /* Page became non-full */
+                LIST_INSERT_HEAD(mp, info, entries);
+                return;
+        }
+        if (info->free != info->total)
+                return;
+
+        LIST_REMOVE(info, entries);
+
+        if (info->size == 0 && !mopts.malloc_freeunmap)
+                mprotect(info->page, MALLOC_PAGESIZE, PROT_READ | PROT_WRITE);
+        unmap(d, info->page, MALLOC_PAGESIZE);
+
+        delete(d, r);
+        if (info->size != 0)
+                mp = &d->chunk_info_list[info->shift];
+        else
+                mp = &d->chunk_info_list[0];
+        LIST_INSERT_HEAD(mp, info, entries);
+}
+
+
+
+static void *
+omalloc(size_t sz, int zero_fill, void *f)
+{
+        void *p;
+        size_t psz;
+
+        if (sz > MALLOC_MAXCHUNK) {
+                if (sz >= SIZE_MAX - mopts.malloc_guard - MALLOC_PAGESIZE) {
+                        errno = ENOMEM;
+                        return NULL;
+                }
+                sz += mopts.malloc_guard;
+                psz = PAGEROUND(sz);
+                p = map(g_pool, psz, zero_fill);
+                if (p == MAP_FAILED) {
+                        errno = ENOMEM;
+                        return NULL;
+                }
+                if (insert(g_pool, p, sz, f)) {
+                        unmap(g_pool, p, psz);
+                        errno = ENOMEM;
+                        return NULL;
+                }
+                if (mopts.malloc_guard) {
+                        if (mprotect((char *)p + psz - mopts.malloc_guard,
+                            mopts.malloc_guard, PROT_NONE))
+                                wrterror("mprotect", NULL);
+                        malloc_guarded += mopts.malloc_guard;
+                }
+
+                if (mopts.malloc_move &&
+                    sz - mopts.malloc_guard < MALLOC_PAGESIZE -
+                    MALLOC_LEEWAY) {
+                        /* fill whole allocation */
+                        if (mopts.malloc_junk)
+                                memset(p, SOME_JUNK, psz - mopts.malloc_guard);
+                        /* shift towards the end */
+                        p = ((char *)p) + ((MALLOC_PAGESIZE - MALLOC_LEEWAY -
+                            (sz - mopts.malloc_guard)) & ~(MALLOC_MINSIZE-1));
+                        /* fill zeros if needed and overwritten above */
+                        if (zero_fill && mopts.malloc_junk)
+                                memset(p, 0, sz - mopts.malloc_guard);
+                } else {
+                        if (mopts.malloc_junk) {
+                                if (zero_fill)
+                                        memset((char *)p + sz - mopts.malloc_guard,
+                                            SOME_JUNK, psz - sz);
+                                else
+                                        memset(p, SOME_JUNK,
+                                            psz - mopts.malloc_guard);
+                        }
+                }
+
+        } else {
+                /* takes care of SOME_JUNK */
+                p = malloc_bytes(g_pool, sz, f);
+                if (zero_fill && p != NULL && sz > 0)
+                        memset(p, 0, sz);
+        }
+
+        return p;
+}
+
+/*
+ * Common function for handling recursion.  Only
+ * print the error message once, to avoid making the problem
+ * potentially worse.
+ */
+static void  
+malloc_recurse(void)
+{
+        static int noprint;
+
+        if (noprint == 0) {
+                noprint = 1;
+                wrterror("recursive call", NULL);
+        }
+        malloc_active--;
+        _MALLOC_UNLOCK();
+        errno = EDEADLK;
+}
+
+static int
+malloc_init(void)
+{
+        if (omalloc_init(&g_pool)) {
+                _MALLOC_UNLOCK();
+                if (mopts.malloc_xmalloc)
+                        wrterror("out of memory", NULL);
+                errno = ENOMEM;
+                return -1;
+        }
+        return 0;
+}
+
+void *
+malloc(size_t size)
+{
+        void *r;
+        int saved_errno = errno;
+
+        _MALLOC_LOCK();
+        malloc_func = " in malloc():";
+        if (g_pool == NULL) {
+                if (malloc_init() != 0)
+                        return NULL;
+        }
+        if (malloc_active++) {
+                malloc_recurse();
+                return NULL;
+        }
+        r = omalloc(size, mopts.malloc_zero, CALLER);
+        malloc_active--;
+        _MALLOC_UNLOCK();
+        if (r == NULL && mopts.malloc_xmalloc) {
+                wrterror("out of memory", NULL);
+                errno = ENOMEM;
+        }
+        if (r != NULL)
+                errno = saved_errno;
+        return r;
+}
+
+static void
+ofree(void *p)
+{
+        struct region_info *r;
+        size_t sz;
+
+        r = find(g_pool, p);
+        if (r == NULL) {
+                wrterror("bogus pointer (double free?)", p);
+                return;
+        }
+        REALSIZE(sz, r);
+        if (sz > MALLOC_MAXCHUNK) {
+                if (sz - mopts.malloc_guard >= MALLOC_PAGESIZE -
+                    MALLOC_LEEWAY) {
+                        if (r->p != p) {
+                                wrterror("bogus pointer", p);
+                                return;
+                        }
+                } else {
+#if notyetbecause_of_realloc
+                        /* shifted towards the end */
+                        if (p != ((char *)r->p) + ((MALLOC_PAGESIZE -
+                            MALLOC_MINSIZE - sz - mopts.malloc_guard) &
+                            ~(MALLOC_MINSIZE-1))) {
+                        }
+#endif
+                        p = r->p;
+                }
+                if (mopts.malloc_guard) {
+                        if (sz < mopts.malloc_guard)
+                                wrterror("guard size", NULL);
+                        if (!mopts.malloc_freeunmap) {
+                                if (mprotect((char *)p + PAGEROUND(sz) -
+                                    mopts.malloc_guard, mopts.malloc_guard,
+                                    PROT_READ | PROT_WRITE))
+                                        wrterror("mprotect", NULL);
+                        }
+                        malloc_guarded -= mopts.malloc_guard;
+                }
+                if (mopts.malloc_junk && !mopts.malloc_freeunmap)
+                        memset(p, SOME_FREEJUNK,
+                            PAGEROUND(sz) - mopts.malloc_guard);
+                unmap(g_pool, p, PAGEROUND(sz));
+                delete(g_pool, r);
+        } else {
+                void *tmp;
+                int i;
+
+                if (mopts.malloc_junk && sz > 0)
+                        memset(p, SOME_FREEJUNK, sz);
+                if (!mopts.malloc_freenow) {
+                        i = getrnibble();
+                        tmp = p;
+                        p = g_pool->delayed_chunks[i];
+                        g_pool->delayed_chunks[i] = tmp;
+                }
+                if (p != NULL) {
+                        r = find(g_pool, p);
+                        if (r == NULL) {
+                                wrterror("bogus pointer (double free?)", p);
+                                return;
+                        }
+                        free_bytes(g_pool, r, p);
+                }
+        }
+}
+
+void
+free(void *ptr)
+{
+        int saved_errno = errno;
+
+        /* This is legal. */
+        if (ptr == NULL)
+                return;
+
+        _MALLOC_LOCK();
+        malloc_func = " in free():";  
+        if (g_pool == NULL) {
+                _MALLOC_UNLOCK();
+                wrterror("free() called before allocation", NULL);
+                return;
+        }
+        if (malloc_active++) {
+                malloc_recurse();
+                return;
+        }
+        ofree(ptr);
+        malloc_active--;
+        _MALLOC_UNLOCK();
+        errno = saved_errno;
+}
+
+
+static void *
+orealloc(void *p, size_t newsz, void *f)
+{
+        struct region_info *r;
+        size_t oldsz, goldsz, gnewsz;
+        void *q;
+
+        if (p == NULL)
+                return omalloc(newsz, 0, f);
+
+        r = find(g_pool, p);
+        if (r == NULL) {
+                wrterror("bogus pointer (double free?)", p);
+                return NULL;
+        }
+        if (newsz >= SIZE_MAX - mopts.malloc_guard - MALLOC_PAGESIZE) {
+                errno = ENOMEM;
+                return NULL;
+        }
+
+        REALSIZE(oldsz, r);
+        goldsz = oldsz;
+        if (oldsz > MALLOC_MAXCHUNK) {
+                if (oldsz < mopts.malloc_guard)
+                        wrterror("guard size", NULL);
+                oldsz -= mopts.malloc_guard;
+        }
+
+        gnewsz = newsz;
+        if (gnewsz > MALLOC_MAXCHUNK)
+                gnewsz += mopts.malloc_guard;
+
+        if (newsz > MALLOC_MAXCHUNK && oldsz > MALLOC_MAXCHUNK && p == r->p &&
+            !mopts.malloc_realloc) {
+                size_t roldsz = PAGEROUND(goldsz);
+                size_t rnewsz = PAGEROUND(gnewsz);
+
+                if (rnewsz > roldsz) {
+                        if (!mopts.malloc_guard) {
+                                void *hint = (char *)p + roldsz;
+                                size_t needed = rnewsz - roldsz;
+
+                                STATS_INC(g_pool->cheap_realloc_tries);
+                                zapcacheregion(g_pool, hint, needed);
+                                q = MQUERY(hint, needed);
+                                if (q == hint)
+                                        q = MMAPA(hint, needed);
+                                else
+                                        q = MAP_FAILED;
+                                if (q == hint) {
+                                        malloc_used += needed;
+                                        if (mopts.malloc_junk)
+                                                memset(q, SOME_JUNK, needed);
+                                        r->size = newsz;
+                                        STATS_SETF(r, f);
+                                        STATS_INC(g_pool->cheap_reallocs);
+                                        return p;
+                                } else if (q != MAP_FAILED) {
+                                        if (munmap(q, needed))
+                                                wrterror("munmap", q);
+                                }
+                        }
+                } else if (rnewsz < roldsz) {
+                        if (mopts.malloc_guard) {
+                                if (mprotect((char *)p + roldsz -
+                                    mopts.malloc_guard, mopts.malloc_guard,
+                                    PROT_READ | PROT_WRITE))
+                                        wrterror("mprotect", NULL);
+                                if (mprotect((char *)p + rnewsz -
+                                    mopts.malloc_guard, mopts.malloc_guard,
+                                    PROT_NONE))
+                                        wrterror("mprotect", NULL);
+                        }
+                        unmap(g_pool, (char *)p + rnewsz, roldsz - rnewsz);
+                        r->size = gnewsz;
+                        STATS_SETF(r, f);
+                        return p;
+                } else {
+                        if (newsz > oldsz && mopts.malloc_junk)
+                                memset((char *)p + newsz, SOME_JUNK,
+                                    rnewsz - mopts.malloc_guard - newsz);
+                        r->size = gnewsz;
+                        STATS_SETF(r, f);
+                        return p;
+                }
+        }
+        if (newsz <= oldsz && newsz > oldsz / 2 && !mopts.malloc_realloc) {
+                if (mopts.malloc_junk && newsz > 0)
+                        memset((char *)p + newsz, SOME_JUNK, oldsz - newsz);
+                STATS_SETF(r, f);
+                return p;
+        } else if (newsz != oldsz || mopts.malloc_realloc) {
+                q = omalloc(newsz, 0, f);
+                if (q == NULL)
+                        return NULL;
+                if (newsz != 0 && oldsz != 0)
+                        memcpy(q, p, oldsz < newsz ? oldsz : newsz);
+                ofree(p);
+                return q;
+        } else {
+                STATS_SETF(r, f);
+                return p;
+        }
+}
+
+void *
+realloc(void *ptr, size_t size)
+{
+        void *r;
+        int saved_errno = errno;
+  
+        _MALLOC_LOCK();
+        malloc_func = " in realloc():";  
+        if (g_pool == NULL) {
+                if (malloc_init() != 0)
+                        return NULL;
+        }
+        if (malloc_active++) {
+                malloc_recurse();
+                return NULL;
+        }
+        r = orealloc(ptr, size, CALLER);
+  
+        malloc_active--;
+        _MALLOC_UNLOCK();
+        if (r == NULL && mopts.malloc_xmalloc) {
+                wrterror("out of memory", NULL);
+                errno = ENOMEM;
+        }
+        if (r != NULL)
+                errno = saved_errno;
+        return r;
+}
+
+
+#define MUL_NO_OVERFLOW (1UL << (sizeof(size_t) * 4))
+
+void *
+calloc(size_t nmemb, size_t size)
+{
+        void *r;
+        int saved_errno = errno;
+
+        _MALLOC_LOCK();
+        malloc_func = " in calloc():";  
+        if (g_pool == NULL) {
+                if (malloc_init() != 0)
+                        return NULL;
+        }
+        if ((nmemb >= MUL_NO_OVERFLOW || size >= MUL_NO_OVERFLOW) &&
+            nmemb > 0 && SIZE_MAX / nmemb < size) {
+                _MALLOC_UNLOCK();
+                if (mopts.malloc_xmalloc)
+                        wrterror("out of memory", NULL);
+                errno = ENOMEM;
+                return NULL;
+        }
+
+        if (malloc_active++) {
+                malloc_recurse();
+                return NULL;
+        }
+
+        size *= nmemb;
+        r = omalloc(size, 1, CALLER);
+  
+        malloc_active--;
+        _MALLOC_UNLOCK();
+        if (r == NULL && mopts.malloc_xmalloc) {
+                wrterror("out of memory", NULL);
+                errno = ENOMEM;
+        }
+        if (r != NULL)
+                errno = saved_errno;
+        return r;
+}
+
+static void *
+mapalign(struct dir_info *d, size_t alignment, size_t sz, int zero_fill)
+{
+        char *p, *q;
+
+        if (alignment < MALLOC_PAGESIZE || ((alignment - 1) & alignment) != 0) {
+                wrterror("mapalign bad alignment", NULL);
+                return MAP_FAILED;
+        }
+        if (sz != PAGEROUND(sz)) {
+                wrterror("mapalign round", NULL);
+                return MAP_FAILED;
+        }
+
+        /* Allocate sz + alignment bytes of memory, which must include a
+         * subrange of size bytes that is properly aligned.  Unmap the
+         * other bytes, and then return that subrange.
+         */
+
+        /* We need sz + alignment to fit into a size_t. */
+        if (alignment > SIZE_MAX - sz)
+                return MAP_FAILED;
+
+        p = map(d, sz + alignment, zero_fill);
+        if (p == MAP_FAILED)
+                return MAP_FAILED;
+        q = (char *)(((uintptr_t)p + alignment - 1) & ~(alignment - 1));
+        if (q != p) {
+                if (munmap(p, q - p))
+                        wrterror("munmap", p);
+        }
+        if (munmap(q + sz, alignment - (q - p)))
+                wrterror("munmap", q + sz);
+        malloc_used -= alignment;
+
+        return q;
+}
+
+static void *
+omemalign(size_t alignment, size_t sz, int zero_fill, void *f)
+{
+        size_t psz;
+        void *p;
+
+        if (alignment <= MALLOC_PAGESIZE) {
+                /*
+                 * max(size, alignment) is enough to assure the requested alignment,
+                 * since the allocator always allocates power-of-two blocks.
+                 */
+                if (sz < alignment)
+                        sz = alignment;
+                return omalloc(sz, zero_fill, f);
+        }
+
+        if (sz >= SIZE_MAX - mopts.malloc_guard - MALLOC_PAGESIZE) {
+                errno = ENOMEM;
+                return NULL;
+        }
+
+        sz += mopts.malloc_guard;
+        psz = PAGEROUND(sz);
+
+        p = mapalign(g_pool, alignment, psz, zero_fill);
+        if (p == NULL) {
+                errno = ENOMEM;
+                return NULL;
+        }
+
+        if (insert(g_pool, p, sz, f)) {
+                unmap(g_pool, p, psz);
+                errno = ENOMEM;
+                return NULL;
+        }
+
+        if (mopts.malloc_guard) {
+                if (mprotect((char *)p + psz - mopts.malloc_guard,
+                    mopts.malloc_guard, PROT_NONE))
+                        wrterror("mprotect", NULL);
+                malloc_guarded += mopts.malloc_guard;
+        }
+
+        if (mopts.malloc_junk) {
+                if (zero_fill)
+                        memset((char *)p + sz - mopts.malloc_guard,
+                            SOME_JUNK, psz - sz);
+                else
+                        memset(p, SOME_JUNK, psz - mopts.malloc_guard);
+        }
+
+        return p;
+}
+
+int
+posix_memalign(void **memptr, size_t alignment, size_t size)
+{
+        int res, saved_errno = errno;
+        void *r;
+
+        /* Make sure that alignment is a large enough power of 2. */
+        if (((alignment - 1) & alignment) != 0 || alignment < sizeof(void *))
+                return EINVAL;
+
+        _MALLOC_LOCK();
+        malloc_func = " in posix_memalign():";
+        if (g_pool == NULL) {
+                if (malloc_init() != 0)
+                        goto err;
+        }
+        if (malloc_active++) {
+                malloc_recurse();
+                goto err;
+        }
+        r = omemalign(alignment, size, mopts.malloc_zero, CALLER);
+        malloc_active--;
+        _MALLOC_UNLOCK();
+        if (r == NULL) {
+                if (mopts.malloc_xmalloc) {
+                        wrterror("out of memory", NULL);
+                        errno = ENOMEM;
+                }
+                goto err;
+        }
+        errno = saved_errno;
+        *memptr = r;
+        return 0;
+
+err:
+        res = errno;
+        errno = saved_errno;
+        return res;
+}
+
+#ifdef MALLOC_STATS
+
+struct malloc_leak {
+        void (*f)();
+        size_t total_size;
+        int count;
+};
+
+struct leaknode {
+        RB_ENTRY(leaknode) entry;
+        struct malloc_leak d;
+};
+
+static int
+leakcmp(struct leaknode *e1, struct leaknode *e2)
+{
+        return e1->d.f < e2->d.f ? -1 : e1->d.f > e2->d.f;
+}
+
+static RB_HEAD(leaktree, leaknode) leakhead;
+RB_GENERATE_STATIC(leaktree, leaknode, entry, leakcmp)
+
+static void
+putleakinfo(void *f, size_t sz, int cnt)
+{
+        struct leaknode key, *p;
+        static struct leaknode *page;
+        static int used;
+
+        if (cnt == 0)
+                return;
+
+        key.d.f = f;
+        p = RB_FIND(leaktree, &leakhead, &key);
+        if (p == NULL) {
+                if (page == NULL ||
+                    used >= MALLOC_PAGESIZE / sizeof(struct leaknode)) {
+                        page = MMAP(MALLOC_PAGESIZE);
+                        if (page == MAP_FAILED)
+                                return;
+                        used = 0;
+                }
+                p = &page[used++];
+                p->d.f = f;
+                p->d.total_size = sz * cnt;
+                p->d.count = cnt;
+                RB_INSERT(leaktree, &leakhead, p);
+        } else {
+                p->d.total_size += sz * cnt;
+                p->d.count += cnt;
+        }
+}
+
+static struct malloc_leak *malloc_leaks;
+
+static void
+dump_leaks(int fd)
+{
+        struct leaknode *p;
+        char buf[64];
+        int i = 0;
+
+        snprintf(buf, sizeof(buf), "Leak report\n");
+        write(fd, buf, strlen(buf));
+        snprintf(buf, sizeof(buf), "           f     sum      #    avg\n");
+        write(fd, buf, strlen(buf));
+        /* XXX only one page of summary */
+        if (malloc_leaks == NULL)
+                malloc_leaks = MMAP(MALLOC_PAGESIZE);
+        if (malloc_leaks != MAP_FAILED)
+                memset(malloc_leaks, 0, MALLOC_PAGESIZE);
+        RB_FOREACH(p, leaktree, &leakhead) {
+                snprintf(buf, sizeof(buf), "%12p %7zu %6u %6zu\n", p->d.f,
+                    p->d.total_size, p->d.count, p->d.total_size / p->d.count);
+                write(fd, buf, strlen(buf));
+                if (malloc_leaks == MAP_FAILED ||
+                    i >= MALLOC_PAGESIZE / sizeof(struct malloc_leak))
+                        continue;
+                malloc_leaks[i].f = p->d.f;
+                malloc_leaks[i].total_size = p->d.total_size;
+                malloc_leaks[i].count = p->d.count;
+                i++;
+        }
+}
+
+static void
+dump_chunk(int fd, struct chunk_info *p, void *f, int fromfreelist)
+{
+        char buf[64];
+
+        while (p != NULL) {
+                snprintf(buf, sizeof(buf), "chunk %12p %12p %4d %d/%d\n",
+                    p->page, ((p->bits[0] & 1) ? NULL : f),
+                    p->size, p->free, p->total);
+                write(fd, buf, strlen(buf));
+                if (!fromfreelist) {
+                        if (p->bits[0] & 1) 
+                                putleakinfo(NULL, p->size, p->total - p->free);
+                        else {
+                                putleakinfo(f, p->size, 1);
+                                putleakinfo(NULL, p->size,
+                                    p->total - p->free - 1);
+                        }
+                        break;
+                }
+                p = LIST_NEXT(p, entries);
+                if (p != NULL) {
+                        snprintf(buf, sizeof(buf), "        ");
+                        write(fd, buf, strlen(buf));
+                }
+        }
+}
+
+static void
+dump_free_chunk_info(int fd, struct dir_info *d)
+{
+        char buf[64];
+        int i, count;
+
+        snprintf(buf, sizeof(buf), "Free chunk structs:\n");
+        write(fd, buf, strlen(buf));
+        for (i = 0; i <= MALLOC_MAXSHIFT; i++) {
+                struct chunk_info *p;
+
+                count = 0;
+                LIST_FOREACH(p, &d->chunk_info_list[i], entries)
+                        count++;
+                p = LIST_FIRST(&d->chunk_dir[i]);
+                if (p == NULL && count == 0)
+                        continue;
+                snprintf(buf, sizeof(buf), "%2d) %3d ", i, count);
+                write(fd, buf, strlen(buf));
+                if (p != NULL)
+                        dump_chunk(fd, p, NULL, 1);
+                else
+                        write(fd, "\n", 1);
+        }
+
+}
+
+static void
+dump_free_page_info(int fd, struct dir_info *d)
+{
+        char buf[64];
+        int i;
+
+        snprintf(buf, sizeof(buf), "Free pages cached: %zu\n",
+            d->free_regions_size);
+        write(fd, buf, strlen(buf));
+        for (i = 0; i < mopts.malloc_cache; i++) {
+                if (d->free_regions[i].p != NULL) {
+                        snprintf(buf, sizeof(buf), "%2d) ", i);
+                        write(fd, buf, strlen(buf));
+                        snprintf(buf, sizeof(buf), "free at %p: %zu\n",
+                            d->free_regions[i].p, d->free_regions[i].size);
+                        write(fd, buf, strlen(buf));
+                }
+        }
+}
+
+static void
+malloc_dump1(int fd, struct dir_info *d)
+{
+        char buf[64];
+        size_t i, realsize;
+
+        snprintf(buf, sizeof(buf), "Malloc dir of %s at %p\n", __progname, d);
+        write(fd, buf, strlen(buf));
+        if (d == NULL)
+                return;
+        snprintf(buf, sizeof(buf), "Region slots free %zu/%zu\n",
+                d->regions_free, d->regions_total);
+        write(fd, buf, strlen(buf));
+        snprintf(buf, sizeof(buf), "Finds %zu/%zu\n", d->finds,
+            d->find_collisions);
+        write(fd, buf, strlen(buf));
+        snprintf(buf, sizeof(buf), "Inserts %zu/%zu\n", d->inserts,
+            d->insert_collisions);
+        write(fd, buf, strlen(buf));
+        snprintf(buf, sizeof(buf), "Deletes %zu/%zu\n", d->deletes,
+             d->delete_moves);
+        write(fd, buf, strlen(buf));
+        snprintf(buf, sizeof(buf), "Cheap reallocs %zu/%zu\n",
+            d->cheap_reallocs, d->cheap_realloc_tries);
+        write(fd, buf, strlen(buf));
+        dump_free_chunk_info(fd, d);
+        dump_free_page_info(fd, d);
+        snprintf(buf, sizeof(buf),
+            "slot)  hash d  type         page            f size [free/n]\n");
+        write(fd, buf, strlen(buf));
+        for (i = 0; i < d->regions_total; i++) {
+                if (d->r[i].p != NULL) {
+                        size_t h = hash(d->r[i].p) &
+                            (d->regions_total - 1);
+                        snprintf(buf, sizeof(buf), "%4zx) #%4zx %zd ",
+                            i, h, h - i);
+                        write(fd, buf, strlen(buf));
+                        REALSIZE(realsize, &d->r[i]);
+                        if (realsize > MALLOC_MAXCHUNK) {
+                                putleakinfo(d->r[i].f, realsize, 1);
+                                snprintf(buf, sizeof(buf),
+                                    "pages %12p %12p %zu\n", d->r[i].p, 
+                                    d->r[i].f, realsize);
+                                write(fd, buf, strlen(buf));
+                        } else
+                                dump_chunk(fd,
+                                    (struct chunk_info *)d->r[i].size, 
+                                    d->r[i].f, 0);
+                }
+        }
+        snprintf(buf, sizeof(buf), "In use %zu\n", malloc_used);
+        write(fd, buf, strlen(buf));
+        snprintf(buf, sizeof(buf), "Guarded %zu\n", malloc_guarded);
+        write(fd, buf, strlen(buf));
+        dump_leaks(fd);
+        write(fd, "\n", 1);
+}
+
+void
+malloc_dump(int fd)
+{
+        int i;
+        void *p;
+        struct region_info *r;
+        int saved_errno = errno;
+
+        for (i = 0; i <= MALLOC_DELAYED_CHUNKS; i++) {
+                p = g_pool->delayed_chunks[i];
+                if (p == NULL)
+                        continue;
+                r = find(g_pool, p);
+                if (r == NULL) 
+                        wrterror("bogus pointer in malloc_dump", p);
+                free_bytes(g_pool, r, p);
+                g_pool->delayed_chunks[i] = NULL;
+        }
+        /* XXX leak when run multiple times */
+        RB_INIT(&leakhead);
+        malloc_dump1(fd, g_pool);
+        errno = saved_errno;
+}
+
+static void
+malloc_exit(void)
+{
+        static const char q[] = "malloc() warning: Couldn't dump stats\n";
+        int save_errno = errno, fd;
+
+        fd = open("malloc.out", O_RDWR|O_APPEND);
+        if (fd != -1) {
+                malloc_dump(fd);
+                close(fd);
+        } else
+                write(STDERR_FILENO, q, sizeof(q) - 1);
+        errno = save_errno;
+}
+
+#endif /* MALLOC_STATS */
diff --git a/src/lib/libc/stdlib/merge.c b/src/lib/libc/stdlib/merge.c
new file mode 100644
index 0000000000..43ef8b08e2
--- /dev/null
+++ b/src/lib/libc/stdlib/merge.c
@@ -0,0 +1,333 @@
+/*      $OpenBSD: merge.c,v 1.9 2011/03/06 00:55:38 deraadt Exp $ */
+/*-
+ * Copyright (c) 1992, 1993
+ *      The Regents of the University of California.  All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Peter McIlroy.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+/*
+ * Hybrid exponential search/linear search merge sort with hybrid
+ * natural/pairwise first pass.  Requires about .3% more comparisons
+ * for random data than LSMS with pairwise first pass alone.
+ * It works for objects as small as two bytes.
+ */
+
+#define NATURAL
+#define THRESHOLD 16    /* Best choice for natural merge cut-off. */
+
+/* #define NATURAL to get hybrid natural merge.
+ * (The default is pairwise merging.)
+ */
+
+#include <sys/types.h>
+
+#include <errno.h>
+#include <stdlib.h>
+#include <string.h>
+
+static void setup(u_char *, u_char *, size_t, size_t, int (*)());
+static void insertionsort(u_char *, size_t, size_t, int (*)());
+
+#define ISIZE sizeof(int)
+#define PSIZE sizeof(u_char *)
+#define ICOPY_LIST(src, dst, last)                              \
+        do                                                      \
+        *(int*)dst = *(int*)src, src += ISIZE, dst += ISIZE;    \
+        while(src < last)
+#define ICOPY_ELT(src, dst, i)                                  \
+        do                                                      \
+        *(int*) dst = *(int*) src, src += ISIZE, dst += ISIZE;  \
+        while (i -= ISIZE)
+
+#define CCOPY_LIST(src, dst, last)              \
+        do                                      \
+                *dst++ = *src++;                \
+        while (src < last)
+#define CCOPY_ELT(src, dst, i)                  \
+        do                                      \
+                *dst++ = *src++;                \
+        while (i -= 1)
+                
+/*
+ * Find the next possible pointer head.  (Trickery for forcing an array
+ * to do double duty as a linked list when objects do not align with word
+ * boundaries.
+ */
+/* Assumption: PSIZE is a power of 2. */
+#define EVAL(p) (u_char **)                                             \
+        ((u_char *)0 +                                                  \
+            (((u_char *)p + PSIZE - 1 - (u_char *) 0) & ~(PSIZE - 1)))
+
+/*
+ * Arguments are as for qsort.
+ */
+int
+mergesort(void *base, size_t nmemb, size_t size,
+    int (*cmp)(const void *, const void *))
+{
+        int i, sense;
+        int big, iflag;
+        u_char *f1, *f2, *t, *b, *tp2, *q, *l1, *l2;
+        u_char *list2, *list1, *p2, *p, *last, **p1;
+
+        if (size < PSIZE / 2) {         /* Pointers must fit into 2 * size. */
+                errno = EINVAL;
+                return (-1);
+        }
+
+        /*
+         * XXX
+         * Stupid subtraction for the Cray.
+         */
+        iflag = 0;
+        if (!(size % ISIZE) && !(((char *)base - (char *)0) % ISIZE))
+                iflag = 1;
+
+        if ((list2 = malloc(nmemb * size + PSIZE)) == NULL)
+                return (-1);
+
+        list1 = base;
+        setup(list1, list2, nmemb, size, cmp);
+        last = list2 + nmemb * size;
+        i = big = 0;
+        while (*EVAL(list2) != last) {
+            l2 = list1;
+            p1 = EVAL(list1);
+            for (tp2 = p2 = list2; p2 != last; p1 = EVAL(l2)) {
+                p2 = *EVAL(p2);
+                f1 = l2;
+                f2 = l1 = list1 + (p2 - list2);
+                if (p2 != last)
+                        p2 = *EVAL(p2);
+                l2 = list1 + (p2 - list2);
+                while (f1 < l1 && f2 < l2) {
+                        if ((*cmp)(f1, f2) <= 0) {
+                                q = f2;
+                                b = f1, t = l1;
+                                sense = -1;
+                        } else {
+                                q = f1;
+                                b = f2, t = l2;
+                                sense = 0;
+                        }
+                        if (!big) {     /* here i = 0 */
+                                while ((b += size) < t && cmp(q, b) >sense)
+                                        if (++i == 6) {
+                                                big = 1;
+                                                goto EXPONENTIAL;
+                                        }
+                        } else {
+EXPONENTIAL:                    for (i = size; ; i <<= 1)
+                                        if ((p = (b + i)) >= t) {
+                                                if ((p = t - size) > b &&
+                                                    (*cmp)(q, p) <= sense)
+                                                        t = p;
+                                                else
+                                                        b = p;
+                                                break;
+                                        } else if ((*cmp)(q, p) <= sense) {
+                                                t = p;
+                                                if (i == size)
+                                                        big = 0; 
+                                                goto FASTCASE;
+                                        } else
+                                                b = p;
+                                while (t > b+size) {
+                                        i = (((t - b) / size) >> 1) * size;
+                                        if ((*cmp)(q, p = b + i) <= sense)
+                                                t = p;
+                                        else
+                                                b = p;
+                                }
+                                goto COPY;
+FASTCASE:                       while (i > size)
+                                        if ((*cmp)(q,
+                                                p = b + (i >>= 1)) <= sense)
+                                                t = p;
+                                        else
+                                                b = p;
+COPY:                           b = t;
+                        }
+                        i = size;
+                        if (q == f1) {
+                                if (iflag) {
+                                        ICOPY_LIST(f2, tp2, b);
+                                        ICOPY_ELT(f1, tp2, i);
+                                } else {
+                                        CCOPY_LIST(f2, tp2, b);
+                                        CCOPY_ELT(f1, tp2, i);
+                                }
+                        } else {
+                                if (iflag) {
+                                        ICOPY_LIST(f1, tp2, b);
+                                        ICOPY_ELT(f2, tp2, i);
+                                } else {
+                                        CCOPY_LIST(f1, tp2, b);
+                                        CCOPY_ELT(f2, tp2, i);
+                                }
+                        }
+                }
+                if (f2 < l2) {
+                        if (iflag)
+                                ICOPY_LIST(f2, tp2, l2);
+                        else
+                                CCOPY_LIST(f2, tp2, l2);
+                } else if (f1 < l1) {
+                        if (iflag)
+                                ICOPY_LIST(f1, tp2, l1);
+                        else
+                                CCOPY_LIST(f1, tp2, l1);
+                }
+                *p1 = l2;
+            }
+            tp2 = list1;        /* swap list1, list2 */
+            list1 = list2;
+            list2 = tp2;
+            last = list2 + nmemb*size;
+        }
+        if (base == list2) {
+                memmove(list2, list1, nmemb*size);
+                list2 = list1;
+        }
+        free(list2);
+        return (0);
+}
+
+#define swap(a, b) {                                    \
+                s = b;                                  \
+                i = size;                               \
+                do {                                    \
+                        tmp = *a; *a++ = *s; *s++ = tmp; \
+                } while (--i);                          \
+                a -= size;                              \
+        }
+#define reverse(bot, top) {                             \
+        s = top;                                        \
+        do {                                            \
+                i = size;                               \
+                do {                                    \
+                        tmp = *bot; *bot++ = *s; *s++ = tmp; \
+                } while (--i);                          \
+                s -= size2;                             \
+        } while(bot < s);                               \
+}
+
+/*
+ * Optional hybrid natural/pairwise first pass.  Eats up list1 in runs of
+ * increasing order, list2 in a corresponding linked list.  Checks for runs
+ * when THRESHOLD/2 pairs compare with same sense.  (Only used when NATURAL
+ * is defined.  Otherwise simple pairwise merging is used.)
+ */
+void
+setup(u_char *list1, u_char *list2, size_t n, size_t size,
+    int (*cmp)(const void *, const void *))
+{
+        int i, length, size2, sense;
+        u_char tmp, *f1, *f2, *s, *l2, *last, *p2;
+
+        size2 = size*2;
+        if (n <= 5) {
+                insertionsort(list1, n, size, cmp);
+                *EVAL(list2) = (u_char*) list2 + n*size;
+                return;
+        }
+        /*
+         * Avoid running pointers out of bounds; limit n to evens
+         * for simplicity.
+         */
+        i = 4 + (n & 1);
+        insertionsort(list1 + (n - i) * size, i, size, cmp);
+        last = list1 + size * (n - i);
+        *EVAL(list2 + (last - list1)) = list2 + n * size;
+
+#ifdef NATURAL
+        p2 = list2;
+        f1 = list1;
+        sense = (cmp(f1, f1 + size) > 0);
+        for (; f1 < last; sense = !sense) {
+                length = 2;
+                                        /* Find pairs with same sense. */
+                for (f2 = f1 + size2; f2 < last; f2 += size2) {
+                        if ((cmp(f2, f2+ size) > 0) != sense)
+                                break;
+                        length += 2;
+                }
+                if (length < THRESHOLD) {               /* Pairwise merge */
+                        do {
+                                p2 = *EVAL(p2) = f1 + size2 - list1 + list2;
+                                if (sense > 0)
+                                        swap (f1, f1 + size);
+                        } while ((f1 += size2) < f2);
+                } else {                                /* Natural merge */
+                        l2 = f2;
+                        for (f2 = f1 + size2; f2 < l2; f2 += size2) {
+                                if ((cmp(f2-size, f2) > 0) != sense) {
+                                        p2 = *EVAL(p2) = f2 - list1 + list2;
+                                        if (sense > 0)
+                                                reverse(f1, f2-size);
+                                        f1 = f2;
+                                }
+                        }
+                        if (sense > 0)
+                                reverse (f1, f2-size);
+                        f1 = f2;
+                        if (f2 < last || cmp(f2 - size, f2) > 0)
+                                p2 = *EVAL(p2) = f2 - list1 + list2;
+                        else
+                                p2 = *EVAL(p2) = list2 + n*size;
+                }
+        }
+#else           /* pairwise merge only. */
+        for (f1 = list1, p2 = list2; f1 < last; f1 += size2) {
+                p2 = *EVAL(p2) = p2 + size2;
+                if (cmp (f1, f1 + size) > 0)
+                        swap(f1, f1 + size);
+        }
+#endif /* NATURAL */
+}
+
+/*
+ * This is to avoid out-of-bounds addresses in sorting the
+ * last 4 elements.
+ */
+static void
+insertionsort(u_char *a, size_t n, size_t size,
+    int (*cmp)(const void *, const void *))
+{
+        u_char *ai, *s, *t, *u, tmp;
+        int i;
+
+        for (ai = a+size; --n >= 1; ai += size)
+                for (t = ai; t > a; t -= size) {
+                        u = t - size;
+                        if (cmp(u, t) <= 0)
+                                break;
+                        swap(u, t);
+                }
+}
diff --git a/src/lib/libc/stdlib/mrand48.c b/src/lib/libc/stdlib/mrand48.c
new file mode 100644
index 0000000000..977264aba5
--- /dev/null
+++ b/src/lib/libc/stdlib/mrand48.c
@@ -0,0 +1,24 @@
+/*      $OpenBSD: mrand48.c,v 1.3 2005/08/08 08:05:37 espie Exp $ */
+/*
+ * Copyright (c) 1993 Martin Birgmeier
+ * All rights reserved.
+ *
+ * You may redistribute unmodified or modified versions of this source
+ * code provided that the above copyright notice and this and the
+ * following conditions are retained.
+ *
+ * This software is provided ``as is'', and comes with no warranties
+ * of any kind. I shall in no event be liable for anything that happens
+ * to anyone/anything when using this software.
+ */
+
+#include "rand48.h"
+
+extern unsigned short __rand48_seed[3];
+
+long
+mrand48(void)
+{
+        __dorand48(__rand48_seed);
+        return ((long) __rand48_seed[2] << 16) + (long) __rand48_seed[1];
+}
diff --git a/src/lib/libc/stdlib/nrand48.c b/src/lib/libc/stdlib/nrand48.c
new file mode 100644
index 0000000000..f1f548c3af
--- /dev/null
+++ b/src/lib/libc/stdlib/nrand48.c
@@ -0,0 +1,22 @@
+/*      $OpenBSD: nrand48.c,v 1.3 2005/08/08 08:05:37 espie Exp $ */
+/*
+ * Copyright (c) 1993 Martin Birgmeier
+ * All rights reserved.
+ *
+ * You may redistribute unmodified or modified versions of this source
+ * code provided that the above copyright notice and this and the
+ * following conditions are retained.
+ *
+ * This software is provided ``as is'', and comes with no warranties
+ * of any kind. I shall in no event be liable for anything that happens
+ * to anyone/anything when using this software.
+ */
+
+#include "rand48.h"
+
+long
+nrand48(unsigned short xseed[3])
+{
+        __dorand48(xseed);
+        return ((long) xseed[2] << 15) + ((long) xseed[1] >> 1);
+}
diff --git a/src/lib/libc/stdlib/posix_memalign.3 b/src/lib/libc/stdlib/posix_memalign.3
new file mode 100644
index 0000000000..05ec1b9d14
--- /dev/null
+++ b/src/lib/libc/stdlib/posix_memalign.3
@@ -0,0 +1,92 @@
+.\"     $OpenBSD: posix_memalign.3,v 1.3 2012/06/18 17:03:52 matthew Exp $
+.\" Copyright (C) 2006 Jason Evans <jasone@FreeBSD.org>.
+.\" All rights reserved.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice(s), this list of conditions and the following disclaimer as
+.\"    the first lines of this file unmodified other than the possible
+.\"    addition of one or more copyright notices.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice(s), this list of conditions and the following disclaimer in
+.\"    the documentation and/or other materials provided with the
+.\"    distribution.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER(S) ``AS IS'' AND ANY
+.\" EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+.\" PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) BE
+.\" LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+.\" CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+.\" SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
+.\" BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+.\" WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
+.\" OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
+.\" EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+.\"
+.\" $FreeBSD: src/lib/libc/stdlib/posix_memalign.3,v 1.3 2007/03/28 04:32:51 jasone Exp $
+.\"
+.Dd $Mdocdate: June 18 2012 $
+.Dt POSIX_MEMALIGN 3
+.Os
+.Sh NAME
+.Nm posix_memalign
+.Nd aligned memory allocation
+.Sh SYNOPSIS
+.In stdlib.h
+.Ft int
+.Fn posix_memalign "void **ptr" "size_t alignment" "size_t size"
+.Sh DESCRIPTION
+The
+.Fn posix_memalign
+function allocates
+.Fa size
+bytes of memory such that the allocation's base address is a multiple of
+.Fa alignment ,
+and returns the allocation in the value pointed to by
+.Fa ptr .
+.Pp
+The requested
+.Fa alignment
+must be a power of 2 at least as large as
+.Fn sizeof "void *" .
+.Pp
+Memory that is allocated via
+.Fn posix_memalign
+can be used as an argument in subsequent calls to
+.Xr realloc 3
+and
+.Xr free 3 .
+.Sh RETURN VALUES
+The
+.Fn posix_memalign
+function returns the value 0 if successful; otherwise it returns an error value.
+.Sh ERRORS
+The
+.Fn posix_memalign
+function will fail if:
+.Bl -tag -width Er
+.It Bq Er EINVAL
+The
+.Fa alignment
+parameter is not a power of 2 at least as large as
+.Fn sizeof "void *" .
+.It Bq Er ENOMEM
+Memory allocation error.
+.El
+.Sh SEE ALSO
+.Xr free 3 ,
+.Xr malloc 3 ,
+.Xr realloc 3
+.Sh STANDARDS
+The
+.Fn posix_memalign
+function conforms to
+.St -p1003.1-2001 .
+.Sh HISTORY
+The
+.Fn posix_memalign
+function first appeared in
+.Ox 4.8 .
diff --git a/src/lib/libc/stdlib/posix_openpt.3 b/src/lib/libc/stdlib/posix_openpt.3
new file mode 100644
index 0000000000..376772bb07
--- /dev/null
+++ b/src/lib/libc/stdlib/posix_openpt.3
@@ -0,0 +1,102 @@
+.\"     $OpenBSD: posix_openpt.3,v 1.3 2012/12/05 06:40:59 jmc Exp $
+.\"
+.\" Copyright (c) 2012 Todd C. Miller <Todd.Miller@courtesan.com>
+.\"
+.\" Permission to use, copy, modify, and distribute this software for any
+.\" purpose with or without fee is hereby granted, provided that the above
+.\" copyright notice and this permission notice appear in all copies.
+.\"
+.\" THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+.\" WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+.\" MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+.\" ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+.\" WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+.\" ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+.\" OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+.\"
+.Dd $Mdocdate: December 5 2012 $
+.Dt POSIX_OPENPT 3
+.Os
+.Sh NAME
+.Nm posix_openpt
+.Nd open a pseudo-terminal device
+.Sh SYNOPSIS
+.In stdlib.h
+.In fcntl.h
+.Ft int
+.Fn posix_openpt "int oflag"
+.Sh DESCRIPTION
+The
+.Fn posix_openpt
+function finds the next available pseudo-terminal and returns an open
+file descriptor for its master device.
+The path name of the slave device may be determined via the
+.Fn ptsname
+function.
+Note that the
+.Fn unlockpt
+and
+.Fn grantpt
+functions should be called before opening the slave device.
+.Pp
+The
+.Ar oflag
+argument is formed by bitwise-inclusive
+.Tn OR Ns 'ing
+the following values defined in
+.In fcntl.h :
+.Bl -tag -width O_NOCTTY -offset indent
+.It Dv O_RDWR
+Open for reading and writing.
+.It Dv O_NOCTTY
+Prevent the device from being made the controlling terminal for the session.
+This flag has no effect on
+.Ox
+and is included for compatibility with other systems.
+.El
+.Pp
+The
+.Dv O_RDWR
+flag must be specified in
+.Fa oflag .
+If
+.Fa oflag
+contains values other than those listed above,
+.Fn posix_openpt
+will return an error.
+.Sh RETURN VALUES
+If successful,
+.Fn posix_openpt
+returns a non-negative integer, the file descriptor for the
+pseudo-terminal master device.
+Otherwise, a value of \-1 is returned and
+.Va errno
+is set to indicate the error.
+.Sh ERRORS
+The
+.Fn posix_openpt
+function will fail if:
+.Bl -tag -width Er
+.It Bq Er EMFILE
+The per-process descriptor table is full.
+.It Bq Er ENFILE
+The system file table is full.
+.It Bq Er EINVAL
+The value of
+.Fa oflag
+is not valid.
+.El
+.Sh SEE ALSO
+.Xr ptsname 3 ,
+.Xr pty 4 ,
+.Xr tty 4
+.Sh STANDARDS
+The
+.Fn posix_openpt
+function conforms to
+.St -p1003.1-2001 .
+.Sh HISTORY
+The
+.Fn posix_openpt
+function appeared in
+.Ox 5.3 .
diff --git a/src/lib/libc/stdlib/posix_pty.c b/src/lib/libc/stdlib/posix_pty.c
new file mode 100644
index 0000000000..a2025ddbb6
--- /dev/null
+++ b/src/lib/libc/stdlib/posix_pty.c
@@ -0,0 +1,119 @@
+/*      $OpenBSD: posix_pty.c,v 1.1 2012/12/03 20:08:33 millert Exp $   */
+
+/*
+ * Copyright (c) 2012 Todd C. Miller <Todd.Miller@courtesan.com>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include <sys/types.h>
+#include <sys/ioctl.h>
+#include <sys/stat.h>
+#include <sys/tty.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <paths.h>
+#include <stddef.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+int
+posix_openpt(int oflag)
+{
+        struct ptmget ptm;
+        int fd, mfd = -1;
+
+        /* User must specify O_RDWR in oflag. */
+        if (!(oflag & O_RDWR)) {
+                errno = EINVAL;
+                return -1;
+        }
+
+        /* Get pty master and slave (this API only uses the master). */
+        fd = open(PATH_PTMDEV, O_RDWR);
+        if (fd != -1) {
+                if (ioctl(fd, PTMGET, &ptm) != -1) {
+                        close(ptm.sfd);
+                        mfd = ptm.cfd;
+                }
+                close(fd);
+        }
+
+        return mfd;
+}
+
+/*
+ * Look up the name of the specified pty master fd.
+ * Note that the name returned does *not* include the /dev/ prefix.
+ * Returns the name on success and NULL on error, setting errno.
+ */
+static const char *
+ptmname(int mfd)
+{
+        struct stat sb;
+        const char *name;
+
+        /* Make sure it is a pty master. */
+        if (fstat(mfd, &sb) != 0)
+                return NULL;
+        if (!S_ISCHR(sb.st_mode)) {
+                errno = EINVAL;
+                return NULL;
+        }
+        name = devname(sb.st_rdev, S_IFCHR);
+        if (strncmp(name, "pty", 3) != 0) {
+                errno = EINVAL;
+                return NULL;
+        }
+        return name;
+}
+
+/*
+ * The PTMGET ioctl handles the mode and owner for us.
+ */
+int
+grantpt(int mfd)
+{
+        return ptmname(mfd) ? 0 : -1;
+}
+
+/*
+ * The PTMGET ioctl unlocks the pty master and slave for us.
+ */
+int
+unlockpt(int mfd)
+{
+        return ptmname(mfd) ? 0 : -1;
+}
+
+/*
+ * Look up the path of the slave pty that corresponds to the master fd.
+ * Returns the path if successful or NULL on error.
+ */
+char *
+ptsname(int mfd)
+{
+        const char *master;
+        static char slave[sizeof(((struct ptmget *)NULL)->sn)];
+
+        if ((master = ptmname(mfd)) == NULL)
+                return NULL;
+
+        /* Add /dev/ prefix and convert "pty" to "tty". */
+        strlcpy(slave, _PATH_DEV, sizeof(slave));
+        strlcat(slave, master, sizeof(slave));
+        slave[sizeof(_PATH_DEV) - 1] = 't';
+
+        return slave;
+}
diff --git a/src/lib/libc/stdlib/ptsname.3 b/src/lib/libc/stdlib/ptsname.3
new file mode 100644
index 0000000000..98705528f5
--- /dev/null
+++ b/src/lib/libc/stdlib/ptsname.3
@@ -0,0 +1,160 @@
+.\"     $OpenBSD: ptsname.3,v 1.2 2012/12/04 18:42:16 millert Exp $
+.\"
+.\" Copyright (c) 2002 The FreeBSD Project, Inc.
+.\" All rights reserved.
+.\"
+.\" This software includes code contributed to the FreeBSD Project
+.\" by Ryan Younce of North Carolina State University.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\" 3. Neither the name of the FreeBSD Project nor the names of its
+.\"    contributors may be used to endorse or promote products derived from
+.\"    this software without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE FREEBSD PROJECT AND CONTRIBUTORS
+.\" ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+.\" LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+.\" PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FREEBSD PROJECT
+.\" OR ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+.\" SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
+.\" TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+.\" PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+.\" LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+.\" NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+.\" SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+.\"
+.\" $FreeBSD: head/lib/libc/stdlib/ptsname.3 240412 2012-09-12 17:54:09Z emaste $
+.\"
+.Dd $Mdocdate: December 4 2012 $
+.Dt PTSNAME 3
+.Os
+.Sh NAME
+.Nm grantpt ,
+.Nm ptsname ,
+.Nm unlockpt
+.Nd pseudo-terminal access functions
+.Sh SYNOPSIS
+.In stdlib.h
+.Ft int
+.Fn grantpt "int fildes"
+.Ft "char *"
+.Fn ptsname "int fildes"
+.Ft int
+.Fn unlockpt "int fildes"
+.Sh DESCRIPTION
+The
+.Fn grantpt ,
+.Fn ptsname ,
+and
+.Fn unlockpt
+functions allow access to pseudo-terminal devices.
+These three functions accept a file descriptor that references the
+master half of a pseudo-terminal pair.
+This file descriptor is created with
+.Xr posix_openpt 3 .
+.Pp
+The
+.Fn grantpt
+function is used to establish ownership and permissions
+of the slave device counterpart to the master device
+specified with
+.Fa fildes .
+The slave device's ownership is set to the real user ID
+of the calling process, and the permissions are set to
+user readable-writable and group writable.
+The group owner of the slave device is also set to the
+group
+.Dq Li tty .
+.Pp
+The
+.Fn ptsname
+function returns the full path name of the slave device
+counterpart to the master device specified with
+.Fa fildes .
+This value can be used
+to subsequently open the appropriate slave after
+.Xr posix_openpt 3
+and
+.Fn grantpt
+have been called.
+.Pp
+The
+.Fn unlockpt
+function clears the lock held on the pseudo-terminal pair
+for the master device specified with
+.Fa fildes .
+.Sh RETURN VALUES
+.Rv -std grantpt unlockpt
+.Pp
+The
+.Fn ptsname
+function returns a pointer to the name
+of the slave device on success; otherwise a
+.Dv NULL
+pointer is returned.
+.Sh ERRORS
+The
+.Fn grantpt ,
+.Fn ptsname
+and
+.Fn unlockpt
+functions may fail and set
+.Va errno
+to:
+.Bl -tag -width Er
+.It Bq Er EBADF
+.Fa fildes
+is not a valid open file descriptor.
+.It Bq Er EINVAL
+.Fa fildes
+is not a master pseudo-terminal device.
+.El
+.Pp
+In addition, the
+.Fn grantpt
+function may set
+.Va errno
+to:
+.Bl -tag -width Er
+.It Bq Er EACCES
+The slave pseudo-terminal device could not be accessed.
+.El
+.Sh SEE ALSO
+.Xr posix_openpt 3 ,
+.Xr pty 4 ,
+.Xr tty 4
+.Sh STANDARDS
+The
+.Fn ptsname
+function conforms to
+.St -p1003.1-2008 .
+.Pp
+This implementation of
+.Fn grantpt
+and
+.Fn unlockpt
+does not conform to
+.St -p1003.1-2008 ,
+because it depends on
+.Xr posix_openpt 3
+to create the pseudo-terminal device with proper permissions in place.
+It only validates whether
+.Fa fildes
+is a valid pseudo-terminal master device.
+Future revisions of the specification will likely allow this behaviour,
+as stated by the Austin Group.
+.Sh HISTORY
+The
+.Fn grantpt ,
+.Fn ptsname
+and
+.Fn unlockpt
+functions appeared in
+.Ox 5.3 .
diff --git a/src/lib/libc/stdlib/qabs.3 b/src/lib/libc/stdlib/qabs.3
new file mode 100644
index 0000000000..6703072e72
--- /dev/null
+++ b/src/lib/libc/stdlib/qabs.3
@@ -0,0 +1,56 @@
+.\" Copyright (c) 1990, 1991 The Regents of the University of California.
+.\" All rights reserved.
+.\"
+.\" This code is derived from software contributed to Berkeley by
+.\" the American National Standards Committee X3, on Information
+.\" Processing Systems.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\" 3. Neither the name of the University nor the names of its contributors
+.\"    may be used to endorse or promote products derived from this software
+.\"    without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.\"     $OpenBSD: qabs.3,v 1.13 2013/06/05 03:39:23 tedu Exp $
+.\"
+.Dd $Mdocdate: June 5 2013 $
+.Dt QABS 3
+.Os
+.Sh NAME
+.Nm qabs
+.Nd return the absolute value of a quad integer
+.Sh SYNOPSIS
+.In stdlib.h
+.Ft quad_t
+.Fn qabs "quad_t j"
+.Sh DESCRIPTION
+The
+.Fn qabs
+function returns the absolute value of the quad integer
+.Fa j .
+.Sh SEE ALSO
+.Xr abs 3 ,
+.Xr cabs 3 ,
+.Xr floor 3 ,
+.Xr imaxabs 3 ,
+.Xr labs 3
+.Sh BUGS
+The absolute value of the most negative integer remains negative.
diff --git a/src/lib/libc/stdlib/qabs.c b/src/lib/libc/stdlib/qabs.c
new file mode 100644
index 0000000000..656b93c822
--- /dev/null
+++ b/src/lib/libc/stdlib/qabs.c
@@ -0,0 +1,37 @@
+/*      $OpenBSD: qabs.c,v 1.5 2005/08/08 08:05:37 espie Exp $ */
+/*-
+ * Copyright (c) 1990 The Regents of the University of California.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <stdlib.h>
+
+quad_t
+qabs(quad_t j)
+{
+        return(j < 0 ? -j : j);
+}
diff --git a/src/lib/libc/stdlib/qdiv.3 b/src/lib/libc/stdlib/qdiv.3
new file mode 100644
index 0000000000..5f5275493e
--- /dev/null
+++ b/src/lib/libc/stdlib/qdiv.3
@@ -0,0 +1,61 @@
+.\" Copyright (c) 1990, 1991 The Regents of the University of California.
+.\" All rights reserved.
+.\"
+.\" This code is derived from software contributed to Berkeley by
+.\" Chris Torek and the American National Standards Committee X3,
+.\" on Information Processing Systems.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\" 3. Neither the name of the University nor the names of its contributors
+.\"    may be used to endorse or promote products derived from this software
+.\"    without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.\"     $OpenBSD: qdiv.3,v 1.10 2013/06/05 03:39:23 tedu Exp $
+.\"
+.Dd $Mdocdate: June 5 2013 $
+.Dt QDIV 3
+.Os
+.Sh NAME
+.Nm qdiv
+.Nd return quotient and remainder from division
+.Sh SYNOPSIS
+.In stdlib.h
+.Ft qdiv_t
+.Fn qdiv "quad_t num" "quad_t denom"
+.Sh DESCRIPTION
+The
+.Fn qdiv
+function computes the value
+.Fa num Ns / Ns Fa denom
+and returns the quotient and remainder in a structure named
+.Li qdiv_t
+that contains two
+.Li quad integer
+members named
+.Fa quot
+and
+.Fa rem .
+.Sh SEE ALSO
+.Xr div 3 ,
+.Xr imaxdiv 3 ,
+.Xr ldiv 3 ,
+.Xr lldiv 3
diff --git a/src/lib/libc/stdlib/qdiv.c b/src/lib/libc/stdlib/qdiv.c
new file mode 100644
index 0000000000..f3db0915ed
--- /dev/null
+++ b/src/lib/libc/stdlib/qdiv.c
@@ -0,0 +1,50 @@
+/*      $OpenBSD: qdiv.c,v 1.5 2005/08/08 08:05:37 espie Exp $ */
+/*
+ * Copyright (c) 1990 Regents of the University of California.
+ * All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Chris Torek.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <stdlib.h>             /* qdiv_t */
+
+qdiv_t
+qdiv(quad_t num, quad_t denom)
+{
+        qdiv_t r;
+
+        /* see div.c for comments */
+
+        r.quot = num / denom;
+        r.rem = num % denom;
+        if (num >= 0 && r.rem < 0) {
+                r.quot++;
+                r.rem -= denom;
+        }
+        return (r);
+}
diff --git a/src/lib/libc/stdlib/qsort.3 b/src/lib/libc/stdlib/qsort.3
new file mode 100644
index 0000000000..4481a96ee4
--- /dev/null
+++ b/src/lib/libc/stdlib/qsort.3
@@ -0,0 +1,238 @@
+.\" Copyright (c) 1990, 1991, 1993
+.\"     The Regents of the University of California.  All rights reserved.
+.\"
+.\" This code is derived from software contributed to Berkeley by
+.\" the American National Standards Committee X3, on Information
+.\" Processing Systems.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\" 3. Neither the name of the University nor the names of its contributors
+.\"    may be used to endorse or promote products derived from this software
+.\"    without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.\"     $OpenBSD: qsort.3,v 1.17 2013/07/17 05:42:11 schwarze Exp $
+.\"
+.Dd $Mdocdate: July 17 2013 $
+.Dt QSORT 3
+.Os
+.Sh NAME
+.Nm qsort ,
+.Nm heapsort ,
+.Nm mergesort
+.Nd sort functions
+.Sh SYNOPSIS
+.In stdlib.h
+.Ft void
+.Fn qsort "void *base" "size_t nmemb" "size_t size" "int (*compar)(const void *, const void *)"
+.Ft int
+.Fn heapsort "void *base" "size_t nmemb" "size_t size" "int (*compar)(const void *, const void *)"
+.Ft int
+.Fn mergesort "void *base" "size_t nmemb" "size_t size" "int (*compar)(const void *, const void *)"
+.Sh DESCRIPTION
+The
+.Fn qsort
+function is a modified partition-exchange sort, or quicksort.
+The
+.Fn heapsort
+function is a modified selection sort.
+The
+.Fn mergesort
+function is a modified merge sort with exponential search
+intended for sorting data with pre-existing order.
+.Pp
+The
+.Fn qsort
+and
+.Fn heapsort
+functions sort an array of
+.Fa nmemb
+objects, the initial member of which is pointed to by
+.Fa base .
+The size of each object is specified by
+.Fa size .
+.Fn mergesort
+behaves similarly, but
+.Em requires
+that
+.Fa size
+be greater than
+.Dq "sizeof(void *) / 2" .
+.Pp
+The contents of the array
+.Fa base
+are sorted in ascending order according to
+a comparison function pointed to by
+.Fa compar ,
+which requires two arguments pointing to the objects being
+compared.
+.Pp
+The comparison function must return an integer less than, equal to, or
+greater than zero if the first argument is considered to be respectively
+less than, equal to, or greater than the second.
+.Pp
+The functions
+.Fn qsort
+and
+.Fn heapsort
+are
+.Em not
+stable, that is, if two members compare as equal, their order in
+the sorted array is undefined.
+The function
+.Fn mergesort
+is stable.
+.Pp
+The
+.Fn qsort
+function is an implementation of C.A.R. Hoare's
+.Dq quicksort
+algorithm,
+a variant of partition-exchange sorting; in particular, see D.E. Knuth's
+Algorithm Q.
+.Fn qsort
+takes O N lg N average time.
+This implementation uses median selection to avoid its
+O N**2 worst-case behavior.
+.Pp
+The
+.Fn heapsort
+function is an implementation of J.W.J. William's
+.Dq heapsort
+algorithm,
+a variant of selection sorting; in particular, see D.E. Knuth's Algorithm H.
+.Fn heapsort
+takes O N lg N worst-case time.
+This implementation of
+.Fn heapsort
+is implemented without recursive function calls.
+.Pp
+The function
+.Fn mergesort
+requires additional memory of size
+.Fa nmemb *
+.Fa size
+bytes; it should be used only when space is not at a premium.
+.Fn mergesort
+is optimized for data with pre-existing order; its worst case
+time is O N lg N; its best case is O N.
+.Pp
+Normally,
+.Fn qsort
+is faster than
+.Fn mergesort ,
+which is faster than
+.Fn heapsort .
+Memory availability and pre-existing order in the data can make this untrue.
+.Sh RETURN VALUES
+The
+.Fn qsort
+function returns no value.
+.Pp
+Upon successful completion,
+.Fn heapsort
+and
+.Fn mergesort
+return 0.
+Otherwise, they return \-1 and the global variable
+.Va errno
+is set to indicate the error.
+.Sh ERRORS
+The
+.Fn heapsort
+and
+.Fn mergesort
+functions succeed unless:
+.Bl -tag -width Er
+.It Bq Er EINVAL
+The
+.Fa size
+argument is zero, or the
+.Fa size
+argument to
+.Fn mergesort
+is less than
+.Dq "sizeof(void *) / 2" .
+.It Bq Er ENOMEM
+.Fn heapsort
+or
+.Fn mergesort
+were unable to allocate memory.
+.El
+.Sh SEE ALSO
+.Xr sort 1 ,
+.Xr radixsort 3
+.Rs
+.%A Hoare, C.A.R.
+.%D 1962
+.%T "Quicksort"
+.%J "The Computer Journal"
+.%V 5:1
+.%P pp. 10-15
+.Re
+.Rs
+.%A Williams, J.W.J
+.%D 1964
+.%T "Heapsort"
+.%J "Communications of the ACM"
+.%V 7:1
+.%P pp. 347\-348
+.Re
+.Rs
+.%A Knuth, D.E.
+.%D 1968
+.%B "The Art of Computer Programming"
+.%V Vol. 3
+.%T "Sorting and Searching"
+.%P pp. 114\-123, 145\-149
+.Re
+.Rs
+.%A McIlroy, P.M.
+.%T "Optimistic Sorting and Information Theoretic Complexity"
+.%J "Fourth Annual ACM-SIAM Symposium on Discrete Algorithms"
+.%P pp. 467\-464
+.%D January 1993
+.Re
+.Rs
+.%A Bentley, J.L.
+.%A McIlroy, M.D.
+.%T "Engineering a Sort Function"
+.%J "Software \- Practice and Experience"
+.%V Vol. 23(11)
+.%P pp. 1249\-1265
+.%D November 1993
+.Re
+.Sh STANDARDS
+Previous versions of
+.Fn qsort
+did not permit the comparison routine itself to call
+.Fn qsort .
+This is no longer true.
+.Pp
+The
+.Fn qsort
+function conforms to
+.St -ansiC .
+.Sh HISTORY
+A
+.Fn qsort
+function first appeared in
+.At v3 .
diff --git a/src/lib/libc/stdlib/qsort.c b/src/lib/libc/stdlib/qsort.c
new file mode 100644
index 0000000000..f28449fb5b
--- /dev/null
+++ b/src/lib/libc/stdlib/qsort.c
@@ -0,0 +1,162 @@
+/*      $OpenBSD: qsort.c,v 1.11 2010/02/08 11:04:07 otto Exp $ */
+/*-
+ * Copyright (c) 1992, 1993
+ *      The Regents of the University of California.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <sys/types.h>
+#include <stdlib.h>
+
+static __inline char    *med3(char *, char *, char *, int (*)(const void *, const void *));
+static __inline void     swapfunc(char *, char *, size_t, int);
+
+#define min(a, b)       (a) < (b) ? a : b
+
+/*
+ * Qsort routine from Bentley & McIlroy's "Engineering a Sort Function".
+ */
+#define swapcode(TYPE, parmi, parmj, n) {               \
+        size_t i = (n) / sizeof (TYPE);                 \
+        TYPE *pi = (TYPE *) (parmi);                    \
+        TYPE *pj = (TYPE *) (parmj);                    \
+        do {                                            \
+                TYPE    t = *pi;                        \
+                *pi++ = *pj;                            \
+                *pj++ = t;                              \
+        } while (--i > 0);                              \
+}
+
+#define SWAPINIT(a, es) swaptype = ((char *)a - (char *)0) % sizeof(long) || \
+        es % sizeof(long) ? 2 : es == sizeof(long)? 0 : 1;
+
+static __inline void
+swapfunc(char *a, char *b, size_t n, int swaptype)
+{
+        if (swaptype <= 1) 
+                swapcode(long, a, b, n)
+        else
+                swapcode(char, a, b, n)
+}
+
+#define swap(a, b)                                      \
+        if (swaptype == 0) {                            \
+                long t = *(long *)(a);                  \
+                *(long *)(a) = *(long *)(b);            \
+                *(long *)(b) = t;                       \
+        } else                                          \
+                swapfunc(a, b, es, swaptype)
+
+#define vecswap(a, b, n)        if ((n) > 0) swapfunc(a, b, n, swaptype)
+
+static __inline char *
+med3(char *a, char *b, char *c, int (*cmp)(const void *, const void *))
+{
+        return cmp(a, b) < 0 ?
+               (cmp(b, c) < 0 ? b : (cmp(a, c) < 0 ? c : a ))
+              :(cmp(b, c) > 0 ? b : (cmp(a, c) < 0 ? a : c ));
+}
+
+void
+qsort(void *aa, size_t n, size_t es, int (*cmp)(const void *, const void *))
+{
+        char *pa, *pb, *pc, *pd, *pl, *pm, *pn;
+        int cmp_result, swaptype, swap_cnt;
+        size_t d, r;
+        char *a = aa;
+
+loop:   SWAPINIT(a, es);
+        swap_cnt = 0;
+        if (n < 7) {
+                for (pm = (char *)a + es; pm < (char *) a + n * es; pm += es)
+                        for (pl = pm; pl > (char *) a && cmp(pl - es, pl) > 0;
+                             pl -= es)
+                                swap(pl, pl - es);
+                return;
+        }
+        pm = (char *)a + (n / 2) * es;
+        if (n > 7) {
+                pl = (char *)a;
+                pn = (char *)a + (n - 1) * es;
+                if (n > 40) {
+                        d = (n / 8) * es;
+                        pl = med3(pl, pl + d, pl + 2 * d, cmp);
+                        pm = med3(pm - d, pm, pm + d, cmp);
+                        pn = med3(pn - 2 * d, pn - d, pn, cmp);
+                }
+                pm = med3(pl, pm, pn, cmp);
+        }
+        swap(a, pm);
+        pa = pb = (char *)a + es;
+
+        pc = pd = (char *)a + (n - 1) * es;
+        for (;;) {
+                while (pb <= pc && (cmp_result = cmp(pb, a)) <= 0) {
+                        if (cmp_result == 0) {
+                                swap_cnt = 1;
+                                swap(pa, pb);
+                                pa += es;
+                        }
+                        pb += es;
+                }
+                while (pb <= pc && (cmp_result = cmp(pc, a)) >= 0) {
+                        if (cmp_result == 0) {
+                                swap_cnt = 1;
+                                swap(pc, pd);
+                                pd -= es;
+                        }
+                        pc -= es;
+                }
+                if (pb > pc)
+                        break;
+                swap(pb, pc);
+                swap_cnt = 1;
+                pb += es;
+                pc -= es;
+        }
+        if (swap_cnt == 0) {  /* Switch to insertion sort */
+                for (pm = (char *) a + es; pm < (char *) a + n * es; pm += es)
+                        for (pl = pm; pl > (char *) a && cmp(pl - es, pl) > 0; 
+                             pl -= es)
+                                swap(pl, pl - es);
+                return;
+        }
+
+        pn = (char *)a + n * es;
+        r = min(pa - (char *)a, pb - pa);
+        vecswap(a, pb - r, r);
+        r = min(pd - pc, pn - pd - es);
+        vecswap(pb, pn - r, r);
+        if ((r = pb - pa) > es)
+                qsort(a, r / es, es, cmp);
+        if ((r = pd - pc) > es) { 
+                /* Iterate rather than recurse to save stack space */
+                a = pn - r;
+                n = r / es;
+                goto loop;
+        }
+/*              qsort(pn - r, r / es, es, cmp);*/
+}
diff --git a/src/lib/libc/stdlib/radixsort.3 b/src/lib/libc/stdlib/radixsort.3
new file mode 100644
index 0000000000..e62f760270
--- /dev/null
+++ b/src/lib/libc/stdlib/radixsort.3
@@ -0,0 +1,155 @@
+.\" Copyright (c) 1990, 1991, 1993
+.\"     The Regents of the University of California.  All rights reserved.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\" 3. Neither the name of the University nor the names of its contributors
+.\"    may be used to endorse or promote products derived from this software
+.\"    without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.\"     $OpenBSD: radixsort.3,v 1.12 2013/06/05 03:39:23 tedu Exp $
+.\"
+.Dd $Mdocdate: June 5 2013 $
+.Dt RADIXSORT 3
+.Os
+.Sh NAME
+.Nm radixsort ,
+.Nm sradixsort
+.Nd radix sort
+.Sh SYNOPSIS
+.In limits.h
+.In stdlib.h
+.Ft int
+.Fn radixsort "const u_char **base" "int nmemb" "const u_char *table" "u_int endbyte"
+.Ft int
+.Fn sradixsort "const u_char **base" "int nmemb" "const u_char *table" "u_int endbyte"
+.Sh DESCRIPTION
+The
+.Fn radixsort
+and
+.Fn sradixsort
+functions are implementations of radix sort.
+.Pp
+These functions sort an array of
+.Fa nmemb
+pointers to byte strings.
+The initial member is referenced by
+.Fa base .
+The byte strings may contain any values; the end of each string
+is denoted by the user-specified value
+.Fa endbyte .
+.Pp
+Applications may specify a sort order by providing the
+.Fa table
+argument.
+If non-null,
+.Fa table
+must reference an array of
+.Dv UCHAR_MAX
++ 1 bytes which contains the sort weight of each possible byte value.
+The end-of-string byte must have a sort weight of 0 or 255
+(for sorting in reverse order).
+More than one byte may have the same sort weight.
+The
+.Fa table
+argument is useful for applications which wish to sort different characters
+equally; for example, providing a table with the same weights
+for A\-Z as for a\-z will result in a case-insensitive sort.
+If
+.Fa table
+is
+.Dv NULL ,
+the contents of the array are sorted in ascending order according to the
+.Tn ASCII
+order of the byte strings they reference and
+.Fa endbyte
+has a sorting weight of 0.
+.Pp
+The
+.Fn sradixsort
+function is stable; that is, if two elements compare as equal, their
+order in the sorted array is unchanged.
+The
+.Fn sradixsort
+function uses additional memory sufficient to hold
+.Fa nmemb
+pointers.
+.Pp
+The
+.Fn radixsort
+function is not stable, but uses no additional memory.
+.Pp
+These functions are variants of most-significant-byte radix sorting; in
+particular, see D.E. Knuth's Algorithm R and section 5.2.5, exercise 10.
+They take linear time relative to the number of bytes in the strings.
+.Sh RETURN VALUES
+Upon successful completion 0 is returned.
+Otherwise, \-1 is returned and the global variable
+.Va errno
+is set to indicate the error.
+.Sh ERRORS
+.Bl -tag -width Er
+.It Bq Er EINVAL
+The value of the
+.Fa endbyte
+element of
+.Fa table
+is not 0 or 255.
+.El
+.Pp
+Additionally, the
+.Fn sradixsort
+function may fail and set
+.Va errno
+for any of the errors specified for the library routine
+.Xr malloc 3 .
+.Sh SEE ALSO
+.Xr sort 1 ,
+.Xr qsort 3
+.Rs
+.%A Knuth, D.E.
+.%D 1968
+.%B "The Art of Computer Programming"
+.%T "Sorting and Searching"
+.%V Vol. 3
+.%P pp. 170-178
+.Re
+.Rs
+.%A Paige, R.
+.%D 1987
+.%T "Three Partition Refinement Algorithms"
+.%J "SIAM J. Comput."
+.%V Vol. 16
+.%N No. 6
+.Re
+.Rs
+.%A McIlroy, P.
+.%D 1993
+.%B "Engineering Radix Sort"
+.%T "Computing Systems"
+.%V Vol. 6:1
+.%P pp. 5-27
+.Re
+.Sh HISTORY
+The
+.Fn radixsort
+function first appeared in
+.Bx 4.4 .
diff --git a/src/lib/libc/stdlib/radixsort.c b/src/lib/libc/stdlib/radixsort.c
new file mode 100644
index 0000000000..49d03b52d5
--- /dev/null
+++ b/src/lib/libc/stdlib/radixsort.c
@@ -0,0 +1,294 @@
+/*      $OpenBSD: radixsort.c,v 1.9 2007/09/02 15:19:17 deraadt Exp $ */
+/*-
+ * Copyright (c) 1990, 1993
+ *      The Regents of the University of California.  All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Peter McIlroy and by Dan Bernstein at New York University, 
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+/*
+ * Radixsort routines.
+ * 
+ * Program r_sort_a() is unstable but uses O(logN) extra memory for a stack.
+ * Use radixsort(a, n, trace, endchar) for this case.
+ * 
+ * For stable sorting (using N extra pointers) use sradixsort(), which calls
+ * r_sort_b().
+ * 
+ * For a description of this code, see D. McIlroy, P. McIlroy, K. Bostic,
+ * "Engineering Radix Sort".
+ */
+
+#include <sys/types.h>
+#include <stdlib.h>
+#include <errno.h>
+
+typedef struct {
+        const u_char **sa;
+        int sn, si;
+} stack;
+
+static __inline void simplesort
+(const u_char **, int, int, const u_char *, u_int);
+static void r_sort_a(const u_char **, int, int, const u_char *, u_int);
+static void r_sort_b(const u_char **,
+            const u_char **, int, int, const u_char *, u_int);
+
+#define THRESHOLD       20              /* Divert to simplesort(). */
+#define SIZE            512             /* Default stack size. */
+
+#define SETUP {                                                         \
+        if (tab == NULL) {                                              \
+                tr = tr0;                                               \
+                for (c = 0; c < endch; c++)                             \
+                        tr0[c] = c + 1;                                 \
+                tr0[c] = 0;                                             \
+                for (c++; c < 256; c++)                                 \
+                        tr0[c] = c;                                     \
+                endch = 0;                                              \
+        } else {                                                        \
+                endch = tab[endch];                                     \
+                tr = tab;                                               \
+                if (endch != 0 && endch != 255) {                       \
+                        errno = EINVAL;                                 \
+                        return (-1);                                    \
+                }                                                       \
+        }                                                               \
+}
+
+int
+radixsort(const u_char **a, int n, const u_char *tab, u_int endch)
+{
+        const u_char *tr;
+        int c;
+        u_char tr0[256];
+
+        SETUP;
+        r_sort_a(a, n, 0, tr, endch);
+        return (0);
+}
+
+int
+sradixsort(const u_char **a, int n, const u_char *tab, u_int endch)
+{
+        const u_char *tr, **ta;
+        int c;
+        u_char tr0[256];
+
+        SETUP;
+        if (n < THRESHOLD)
+                simplesort(a, n, 0, tr, endch);
+        else {
+                if ((ta = calloc(n, sizeof(a))) == NULL)
+                        return (-1);
+                r_sort_b(a, ta, n, 0, tr, endch);
+                free(ta);
+        }
+        return (0);
+}
+
+#define empty(s)        (s >= sp)
+#define pop(a, n, i)    a = (--sp)->sa, n = sp->sn, i = sp->si
+#define push(a, n, i)   sp->sa = a, sp->sn = n, (sp++)->si = i
+#define swap(a, b, t)   t = a, a = b, b = t
+
+/* Unstable, in-place sort. */
+void
+r_sort_a(const u_char **a, int n, int i, const u_char *tr, u_int endch)
+{
+        static int count[256], nc, bmin;
+        int c;
+        const u_char **ak, *r;
+        stack s[SIZE], *sp, *sp0, *sp1, temp;
+        int *cp, bigc;
+        const u_char **an, *t, **aj, **top[256];
+
+        /* Set up stack. */
+        sp = s;
+        push(a, n, i);
+        while (!empty(s)) {
+                pop(a, n, i);
+                if (n < THRESHOLD) {
+                        simplesort(a, n, i, tr, endch);
+                        continue;
+                }
+                an = a + n;
+
+                /* Make character histogram. */
+                if (nc == 0) {
+                        bmin = 255;     /* First occupied bin, excluding eos. */
+                        for (ak = a; ak < an;) {
+                                c = tr[(*ak++)[i]];
+                                if (++count[c] == 1 && c != endch) {
+                                        if (c < bmin)
+                                                bmin = c;
+                                        nc++;
+                                }
+                        }
+                        if (sp + nc > s + SIZE) {       /* Get more stack. */
+                                r_sort_a(a, n, i, tr, endch);
+                                continue;
+                        }
+                }
+
+                /*
+                 * Set top[]; push incompletely sorted bins onto stack.
+                 * top[] = pointers to last out-of-place element in bins.
+                 * count[] = counts of elements in bins.
+                 * Before permuting: top[c-1] + count[c] = top[c];
+                 * during deal: top[c] counts down to top[c-1].
+                 */
+                sp0 = sp1 = sp;         /* Stack position of biggest bin. */
+                bigc = 2;               /* Size of biggest bin. */
+                if (endch == 0)         /* Special case: set top[eos]. */
+                        top[0] = ak = a + count[0];
+                else {
+                        ak = a;
+                        top[255] = an;
+                }
+                for (cp = count + bmin; nc > 0; cp++) {
+                        while (*cp == 0)        /* Find next non-empty pile. */
+                                cp++;
+                        if (*cp > 1) {
+                                if (*cp > bigc) {
+                                        bigc = *cp;
+                                        sp1 = sp;
+                                }
+                                push(ak, *cp, i+1);
+                        }
+                        top[cp-count] = ak += *cp;
+                        nc--;
+                }
+                swap(*sp0, *sp1, temp); /* Play it safe -- biggest bin last. */
+
+                /*
+                 * Permute misplacements home.  Already home: everything
+                 * before aj, and in bin[c], items from top[c] on.
+                 * Inner loop:
+                 *      r = next element to put in place;
+                 *      ak = top[r[i]] = location to put the next element.
+                 *      aj = bottom of 1st disordered bin.
+                 * Outer loop:
+                 *      Once the 1st disordered bin is done, ie. aj >= ak,
+                 *      aj<-aj + count[c] connects the bins in a linked list;
+                 *      reset count[c].
+                 */
+                for (aj = a; aj < an;  *aj = r, aj += count[c], count[c] = 0)
+                        for (r = *aj;  aj < (ak = --top[c = tr[r[i]]]);)
+                                swap(*ak, r, t);
+        }
+}
+
+/* Stable sort, requiring additional memory. */
+void
+r_sort_b(const u_char **a, const u_char **ta, int n, int i, const u_char *tr,
+    u_int endch)
+{
+        static int count[256], nc, bmin;
+        int c;
+        const u_char **ak, **ai;
+        stack s[512], *sp, *sp0, *sp1, temp;
+        const u_char **top[256];
+        int *cp, bigc;
+
+        sp = s;
+        push(a, n, i);
+        while (!empty(s)) {
+                pop(a, n, i);
+                if (n < THRESHOLD) {
+                        simplesort(a, n, i, tr, endch);
+                        continue;
+                }
+
+                if (nc == 0) {
+                        bmin = 255;
+                        for (ak = a + n; --ak >= a;) {
+                                c = tr[(*ak)[i]];
+                                if (++count[c] == 1 && c != endch) {
+                                        if (c < bmin)
+                                                bmin = c;
+                                        nc++;
+                                }
+                        }
+                        if (sp + nc > s + SIZE) {
+                                r_sort_b(a, ta, n, i, tr, endch);
+                                continue;
+                        }
+                }
+
+                sp0 = sp1 = sp;
+                bigc = 2;
+                if (endch == 0) {
+                        top[0] = ak = a + count[0];
+                        count[0] = 0;
+                } else {
+                        ak = a;
+                        top[255] = a + n;
+                        count[255] = 0;
+                }
+                for (cp = count + bmin; nc > 0; cp++) {
+                        while (*cp == 0)
+                                cp++;
+                        if ((c = *cp) > 1) {
+                                if (c > bigc) {
+                                        bigc = c;
+                                        sp1 = sp;
+                                }
+                                push(ak, c, i+1);
+                        }
+                        top[cp-count] = ak += c;
+                        *cp = 0;                        /* Reset count[]. */
+                        nc--;
+                }
+                swap(*sp0, *sp1, temp);
+
+                for (ak = ta + n, ai = a+n; ak > ta;)   /* Copy to temp. */
+                        *--ak = *--ai;
+                for (ak = ta+n; --ak >= ta;)            /* Deal to piles. */
+                        *--top[tr[(*ak)[i]]] = *ak;
+        }
+}
+                
+static __inline void
+simplesort(const u_char **a, int n, int b, const u_char *tr, u_int endch)
+    /* insertion sort */
+{
+        u_char ch;
+        const u_char  **ak, **ai, *s, *t;
+
+        for (ak = a+1; --n >= 1; ak++)
+                for (ai = ak; ai > a; ai--) {
+                        for (s = ai[0] + b, t = ai[-1] + b;
+                            (ch = tr[*s]) != endch; s++, t++)
+                                if (ch != tr[*t])
+                                        break;
+                        if (ch >= tr[*t])
+                                break;
+                        swap(ai[0], ai[-1], s);
+                }
+}
diff --git a/src/lib/libc/stdlib/rand.3 b/src/lib/libc/stdlib/rand.3
new file mode 100644
index 0000000000..75395976f8
--- /dev/null
+++ b/src/lib/libc/stdlib/rand.3
@@ -0,0 +1,105 @@
+.\" Copyright (c) 1990, 1991 The Regents of the University of California.
+.\" All rights reserved.
+.\"
+.\" This code is derived from software contributed to Berkeley by
+.\" the American National Standards Committee X3, on Information
+.\" Processing Systems.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\" 3. Neither the name of the University nor the names of its contributors
+.\"    may be used to endorse or promote products derived from this software
+.\"    without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.\"     $OpenBSD: rand.3,v 1.15 2014/04/07 17:57:56 schwarze Exp $
+.\"
+.Dd $Mdocdate: April 7 2014 $
+.Dt RAND 3
+.Os
+.Sh NAME
+.Nm rand ,
+.Nm rand_r ,
+.Nm srand
+.Nd bad random number generator
+.Sh SYNOPSIS
+.In stdlib.h
+.Ft void
+.Fn srand "unsigned int seed"
+.Ft int
+.Fn rand void
+.Ft int
+.Fn rand_r "unsigned int *seed"
+.Sh DESCRIPTION
+.Bf -symbolic
+These interfaces are obsoleted by
+.Xr random 3 .
+.Ef
+.Pp
+The
+.Fn rand
+function computes a sequence of pseudo-random integers in the range
+of 0 to
+.Dv RAND_MAX
+(as defined by the header file
+.In stdlib.h ) .
+.Pp
+The
+.Fn srand
+function sets its argument as the seed for a new sequence of
+pseudo-random numbers to be returned by
+.Fn rand .
+These sequences are repeatable by calling
+.Fn srand
+with the same seed value.
+.Pp
+If no seed value is provided, the functions are automatically
+seeded with a value of 1.
+.Pp
+The
+.Fn rand_r
+is a thread-safe version of
+.Fn rand .
+Storage for the seed must be provided through the
+.Fa seed
+argument, and needs to have been initialized by the caller.
+.Sh SEE ALSO
+.Xr arc4random 3 ,
+.Xr rand48 3 ,
+.Xr random 3
+.Sh STANDARDS
+The
+.Fn rand
+and
+.Fn srand
+functions conform to
+.St -ansiC .
+.Pp
+The
+.Fn rand_r
+function conforms to
+.St -p1003.1-2008 .
+.Sh HISTORY
+The functions
+.Fn rand
+and
+.Fn srand
+first appeared in
+.At v3 .
diff --git a/src/lib/libc/stdlib/rand.c b/src/lib/libc/stdlib/rand.c
new file mode 100644
index 0000000000..6860dd4f71
--- /dev/null
+++ b/src/lib/libc/stdlib/rand.c
@@ -0,0 +1,67 @@
+/*-
+ * Copyright (c) 1990 The Regents of the University of California.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <sys/types.h>
+#include <stdlib.h>
+
+static u_int next = 1;
+
+int
+rand_r(u_int *seed)
+{
+        *seed = *seed * 1103515245 + 12345;
+        return (*seed % ((u_int)RAND_MAX + 1));
+}
+
+#if defined(APIWARN)
+__warn_references(rand_r,
+    "warning: rand_r() isn't random; consider using arc4random()");
+#endif
+
+int
+rand(void)
+{
+        return (rand_r(&next));
+}
+
+#if defined(APIWARN)
+__warn_references(rand,
+    "warning: rand() isn't random; consider using arc4random()");
+#endif
+
+void
+srand(u_int seed)
+{
+        next = seed;
+}
+
+#if defined(APIWARN)
+__warn_references(srand,
+    "warning: srand() seed choices are invariably poor");
+#endif
diff --git a/src/lib/libc/stdlib/rand48.3 b/src/lib/libc/stdlib/rand48.3
new file mode 100644
index 0000000000..8b7c572fb4
--- /dev/null
+++ b/src/lib/libc/stdlib/rand48.3
@@ -0,0 +1,179 @@
+.\" Copyright (c) 1993 Martin Birgmeier
+.\" All rights reserved.
+.\"
+.\" You may redistribute unmodified or modified versions of this source
+.\" code provided that the above copyright notice and this and the
+.\" following conditions are retained.
+.\"
+.\" This software is provided ``as is'', and comes with no warranties
+.\" of any kind. I shall in no event be liable for anything that happens
+.\" to anyone/anything when using this software.
+.\"
+.\"     $OpenBSD: rand48.3,v 1.14 2014/01/21 23:25:03 deraadt Exp $
+.\"
+.Dd $Mdocdate: January 21 2014 $
+.Dt RAND48 3
+.Os
+.Sh NAME
+.Nm drand48 ,
+.Nm erand48 ,
+.Nm lrand48 ,
+.Nm nrand48 ,
+.Nm mrand48 ,
+.Nm jrand48 ,
+.Nm srand48 ,
+.Nm seed48 ,
+.Nm lcong48
+.Nd pseudo-random number generators and initialization routines
+.Sh SYNOPSIS
+.In stdlib.h
+.Ft double
+.Fn drand48 void
+.Ft double
+.Fn erand48 "unsigned short xseed[3]"
+.Ft long
+.Fn lrand48 void
+.Ft long
+.Fn nrand48 "unsigned short xseed[3]"
+.Ft long
+.Fn mrand48 void
+.Ft long
+.Fn jrand48 "unsigned short xseed[3]"
+.Ft void
+.Fn srand48 "long seed"
+.Ft "unsigned short *"
+.Fn seed48 "unsigned short xseed[3]"
+.Ft void
+.Fn lcong48 "unsigned short p[7]"
+.Sh DESCRIPTION
+The
+.Fn rand48
+family of functions generates pseudo-random numbers using a linear
+congruential algorithm working on integers 48 bits in size.
+The particular formula employed is
+r(n+1) = (a * r(n) + c) mod m
+where the default values are
+for the multiplicand a = 0xfdeece66d = 25214903917 and
+the addend c = 0xb = 11.
+The modulus is always fixed at m = 2 ** 48.
+r(n) is called the seed of the random number generator.
+.Pp
+For all the six generator routines described next, the first
+computational step is to perform a single iteration of the algorithm.
+.Pp
+.Fn drand48
+and
+.Fn erand48
+return values of type double.
+The full 48 bits of r(n+1) are
+loaded into the mantissa of the returned value, with the exponent set
+such that the values produced lie in the interval [0.0, 1.0].
+.Pp
+.Fn lrand48
+and
+.Fn nrand48
+return values of type long in the range
+[0, 2**31-1].
+The high-order (31) bits of
+r(n+1) are loaded into the lower bits of the returned value, with
+the topmost (sign) bit set to zero.
+.Pp
+.Fn mrand48
+and
+.Fn jrand48
+return values of type long in the range
+[-2**31, 2**31-1].
+The high-order (32) bits of r(n+1) are loaded into the returned value.
+.Pp
+.Fn drand48 ,
+.Fn lrand48 ,
+and
+.Fn mrand48
+use an internal buffer to store r(n).
+For these functions
+the initial value of r(0) = 0x1234abcd330e = 20017429951246.
+.Pp
+On the other hand,
+.Fn erand48 ,
+.Fn nrand48 ,
+and
+.Fn jrand48
+use a user-supplied buffer to store the seed r(n),
+which consists of an array of 3 shorts, where the zeroth member
+holds the least significant bits.
+.Pp
+All functions share the same multiplicand and addend.
+.Pp
+.Fn srand48
+is used to initialize the internal buffer r(n) of
+.Fn drand48 ,
+.Fn lrand48 ,
+and
+.Fn mrand48
+such that the 32 bits of the seed value are copied into the upper 32 bits
+of r(n), with the lower 16 bits of r(n) arbitrarily being set to 0x330e.
+Additionally, the constant multiplicand and addend of the algorithm are
+reset to the default values given above.
+.Pp
+.Fn seed48
+also initializes the internal buffer r(n) of
+.Fn drand48 ,
+.Fn lrand48 ,
+and
+.Fn mrand48 ,
+but here all 48 bits of the seed can be specified in an array of 3 shorts,
+where the zeroth member specifies the lowest bits.
+Again, the constant multiplicand and addend of the algorithm are
+reset to the default values given above.
+.Fn seed48
+returns a pointer to an array of 3 shorts which contains the old seed.
+This array is statically allocated, so its contents are lost after
+each new call to
+.Fn seed48 .
+.Pp
+Finally,
+.Fn lcong48
+allows full control over the multiplicand and addend used in
+.Fn drand48 ,
+.Fn erand48 ,
+.Fn lrand48 ,
+.Fn nrand48 ,
+.Fn mrand48 ,
+and
+.Fn jrand48 ,
+and the seed used in
+.Fn drand48 ,
+.Fn lrand48 ,
+and
+.Fn mrand48 .
+An array of 7 shorts is passed as parameter; the first three shorts are
+used to initialize the seed; the second three are used to initialize the
+multiplicand; and the last short is used to initialize the addend.
+It is thus not possible to use values greater than 0xffff as the addend.
+.Pp
+Note that all three methods of seeding the random number generator
+always also set the multiplicand and addend for any of the six
+generator calls.
+.Pp
+For a more powerful random number generator, see
+.Xr arc4random 3 .
+.Sh SEE ALSO
+.Xr arc4random 3 ,
+.Xr rand 3 ,
+.Xr random 3
+.Sh STANDARDS
+The
+.Fn drand48 ,
+.Fn erand48 ,
+.Fn jrand48 ,
+.Fn lcong48 ,
+.Fn lrand48 ,
+.Fn mrand48 ,
+.Fn nrand48 ,
+.Fn seed48 ,
+and
+.Fn srand48
+functions conform to
+.St -p1003.1-2008 .
+.Sh AUTHORS
+Martin Birgmeier
diff --git a/src/lib/libc/stdlib/rand48.h b/src/lib/libc/stdlib/rand48.h
new file mode 100644
index 0000000000..afa49f65f3
--- /dev/null
+++ b/src/lib/libc/stdlib/rand48.h
@@ -0,0 +1,32 @@
+/*
+ * Copyright (c) 1993 Martin Birgmeier
+ * All rights reserved.
+ *
+ * You may redistribute unmodified or modified versions of this source
+ * code provided that the above copyright notice and this and the
+ * following conditions are retained.
+ *
+ * This software is provided ``as is'', and comes with no warranties
+ * of any kind. I shall in no event be liable for anything that happens
+ * to anyone/anything when using this software.
+ *
+ *      $OpenBSD: rand48.h,v 1.3 2002/02/16 21:27:24 millert Exp $
+ */
+
+#ifndef _RAND48_H_
+#define _RAND48_H_
+
+#include <math.h>
+#include <stdlib.h>
+
+void            __dorand48(unsigned short[3]);
+
+#define RAND48_SEED_0   (0x330e)
+#define RAND48_SEED_1   (0xabcd)
+#define RAND48_SEED_2   (0x1234)
+#define RAND48_MULT_0   (0xe66d)
+#define RAND48_MULT_1   (0xdeec)
+#define RAND48_MULT_2   (0x0005)
+#define RAND48_ADD      (0x000b)
+
+#endif /* _RAND48_H_ */
diff --git a/src/lib/libc/stdlib/random.3 b/src/lib/libc/stdlib/random.3
new file mode 100644
index 0000000000..fdb78848d8
--- /dev/null
+++ b/src/lib/libc/stdlib/random.3
@@ -0,0 +1,185 @@
+.\" Copyright (c) 1983, 1991 The Regents of the University of California.
+.\" All rights reserved.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\" 3. Neither the name of the University nor the names of its contributors
+.\"    may be used to endorse or promote products derived from this software
+.\"    without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.\"     $OpenBSD: random.3,v 1.21 2013/06/05 03:39:23 tedu Exp $
+.\"
+.Dd $Mdocdate: June 5 2013 $
+.Dt RANDOM 3
+.Os
+.Sh NAME
+.Nm random ,
+.Nm srandom ,
+.Nm srandomdev ,
+.Nm initstate ,
+.Nm setstate
+.Nd better random number generator; routines for changing generators
+.Sh SYNOPSIS
+.In stdlib.h
+.Ft long
+.Fn random void
+.Ft void
+.Fn srandom "unsigned int seed"
+.Ft void
+.Fn srandomdev void
+.Ft char *
+.Fn initstate "unsigned int seed" "char *state" "size_t n"
+.Ft char *
+.Fn setstate "char *state"
+.Sh DESCRIPTION
+The
+.Fn random
+function uses a non-linear additive feedback random number generator employing
+a default table of size 31 long integers to return successive pseudo-random
+numbers in the range from 0 to (2**31)\-1.
+The period of this random number generator is very large, approximately
+16*((2**31)\-1).
+.Pp
+The
+.Fn random
+and
+.Fn srandom
+functions have (almost) the same calling sequence and initialization
+properties as
+.Xr rand 3 Ns / Ns Xr srand 3 .
+The difference is that
+.Xr rand
+produces a much less random sequence \(em in fact, the low dozen bits
+generated by rand go through a cyclic pattern.
+All the bits generated by
+.Fn random
+are usable.
+For example,
+.Sq Li random()&01
+will produce a random binary
+value.
+.Pp
+Like
+.Xr rand 3 ,
+.Fn random
+will by default produce a sequence of numbers that can be duplicated
+by calling
+.Fn srandom
+with
+.Ql 1
+as the seed.
+.Pp
+The
+.Fn srandomdev
+routine initializes a state array using
+random numbers obtained from the kernel,
+suitable for cryptographic use.
+Note that this particular seeding procedure can generate
+states which are impossible to reproduce by calling
+.Fn srandom
+with any value, since the succeeding terms in the
+state buffer are no longer derived from the LC algorithm applied to
+a fixed seed.
+.Pp
+The
+.Fn initstate
+routine allows a state array, passed in as an argument, to be initialized
+for future use.
+The size of the state array (in bytes) is used by
+.Fn initstate
+to decide how sophisticated a random number generator it should use \(em the
+more state, the better the random numbers will be.
+(Current "optimal" values for the amount of state information are
+8, 32, 64, 128, and 256 bytes; other amounts will be rounded down to
+the nearest known amount.
+Using less than 8 bytes will cause an error.)
+The seed for the initialization (which specifies a starting point for
+the random number sequence, and provides for restarting at the same
+point) is also an argument.
+The
+.Fn initstate
+function returns a pointer to the previous state information array.
+.Pp
+Once a state has been initialized, the
+.Fn setstate
+routine provides for rapid switching between states.
+The
+.Fn setstate
+function returns a pointer to the previous state array; its
+argument state array is used for further random number generation
+until the next call to
+.Fn initstate
+or
+.Fn setstate .
+.Pp
+Once a state array has been initialized, it may be restarted at a
+different point either by calling
+.Fn initstate
+(with the desired seed, the state array, and its size) or by calling
+both
+.Fn setstate
+(with the state array) and
+.Fn srandom
+(with the desired seed).
+The advantage of calling both
+.Fn setstate
+and
+.Fn srandom
+is that the size of the state array does not have to be remembered after
+it is initialized.
+.Pp
+With 256 bytes of state information, the period of the random number
+generator is greater than 2**69
+which should be sufficient for most purposes.
+.Sh DIAGNOSTICS
+If
+.Fn initstate
+is called with less than 8 bytes of state information, or if
+.Fn setstate
+detects that the state information has been garbled, error
+messages are printed on the standard error output.
+.Sh SEE ALSO
+.Xr arc4random 3 ,
+.Xr drand48 3 ,
+.Xr rand 3 ,
+.Xr random 4
+.Sh STANDARDS
+The
+.Fn random ,
+.Fn srandom ,
+.Fn initstate ,
+and
+.Fn setstate
+functions conform to
+.St -xpg4.2 .
+.Pp
+The
+.Fn srandomdev
+function is an extension.
+.Sh HISTORY
+These
+functions appeared in
+.Bx 4.2 .
+.Sh AUTHORS
+.An Earl T. Cohen
+.Sh BUGS
+About 2/3 the speed of
+.Xr rand 3 .
diff --git a/src/lib/libc/stdlib/random.c b/src/lib/libc/stdlib/random.c
new file mode 100644
index 0000000000..00edf2dca1
--- /dev/null
+++ b/src/lib/libc/stdlib/random.c
@@ -0,0 +1,446 @@
+/*      $OpenBSD: random.c,v 1.19 2013/08/01 19:42:08 kettenis Exp $ */
+/*
+ * Copyright (c) 1983 Regents of the University of California.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <sys/param.h>
+#include <sys/sysctl.h>
+#include <sys/time.h>
+#include <fcntl.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+
+#include "thread_private.h"
+
+/*
+ * random.c:
+ *
+ * An improved random number generation package.  In addition to the standard
+ * rand()/srand() like interface, this package also has a special state info
+ * interface.  The initstate() routine is called with a seed, an array of
+ * bytes, and a count of how many bytes are being passed in; this array is
+ * then initialized to contain information for random number generation with
+ * that much state information.  Good sizes for the amount of state
+ * information are 32, 64, 128, and 256 bytes.  The state can be switched by
+ * calling the setstate() routine with the same array as was initiallized
+ * with initstate().  By default, the package runs with 128 bytes of state
+ * information and generates far better random numbers than a linear
+ * congruential generator.  If the amount of state information is less than
+ * 32 bytes, a simple linear congruential R.N.G. is used.
+ *
+ * Internally, the state information is treated as an array of int32_t; the
+ * zeroeth element of the array is the type of R.N.G. being used (small
+ * integer); the remainder of the array is the state information for the
+ * R.N.G.  Thus, 32 bytes of state information will give 7 int32_ts worth of
+ * state information, which will allow a degree seven polynomial.  (Note:
+ * the zeroeth word of state information also has some other information
+ * stored in it -- see setstate() for details).
+ * 
+ * The random number generation technique is a linear feedback shift register
+ * approach, employing trinomials (since there are fewer terms to sum up that
+ * way).  In this approach, the least significant bit of all the numbers in
+ * the state table will act as a linear feedback shift register, and will
+ * have period 2^deg - 1 (where deg is the degree of the polynomial being
+ * used, assuming that the polynomial is irreducible and primitive).  The
+ * higher order bits will have longer periods, since their values are also
+ * influenced by pseudo-random carries out of the lower bits.  The total
+ * period of the generator is approximately deg*(2**deg - 1); thus doubling
+ * the amount of state information has a vast influence on the period of the
+ * generator.  Note: the deg*(2**deg - 1) is an approximation only good for
+ * large deg, when the period of the shift register is the dominant factor.
+ * With deg equal to seven, the period is actually much longer than the
+ * 7*(2**7 - 1) predicted by this formula.
+ */
+
+/*
+ * For each of the currently supported random number generators, we have a
+ * break value on the amount of state information (you need at least this
+ * many bytes of state info to support this random number generator), a degree
+ * for the polynomial (actually a trinomial) that the R.N.G. is based on, and
+ * the separation between the two lower order coefficients of the trinomial.
+ */
+#define TYPE_0          0               /* linear congruential */
+#define BREAK_0         8
+#define DEG_0           0
+#define SEP_0           0
+
+#define TYPE_1          1               /* x**7 + x**3 + 1 */
+#define BREAK_1         32
+#define DEG_1           7
+#define SEP_1           3
+
+#define TYPE_2          2               /* x**15 + x + 1 */
+#define BREAK_2         64
+#define DEG_2           15
+#define SEP_2           1
+
+#define TYPE_3          3               /* x**31 + x**3 + 1 */
+#define BREAK_3         128
+#define DEG_3           31
+#define SEP_3           3
+
+#define TYPE_4          4               /* x**63 + x + 1 */
+#define BREAK_4         256
+#define DEG_4           63
+#define SEP_4           1
+
+/*
+ * Array versions of the above information to make code run faster --
+ * relies on fact that TYPE_i == i.
+ */
+#define MAX_TYPES       5               /* max number of types above */
+
+static int degrees[MAX_TYPES] = { DEG_0, DEG_1, DEG_2, DEG_3, DEG_4 };
+static int seps [MAX_TYPES] =   { SEP_0, SEP_1, SEP_2, SEP_3, SEP_4 };
+
+/*
+ * Initially, everything is set up as if from:
+ *
+ *      initstate(1, &randtbl, 128);
+ *
+ * Note that this initialization takes advantage of the fact that srandom()
+ * advances the front and rear pointers 10*rand_deg times, and hence the
+ * rear pointer which starts at 0 will also end up at zero; thus the zeroeth
+ * element of the state information, which contains info about the current
+ * position of the rear pointer is just
+ *
+ *      MAX_TYPES * (rptr - state) + TYPE_3 == TYPE_3.
+ */
+
+static int32_t randtbl[DEG_3 + 1] = {
+        TYPE_3,
+        0x991539b1, 0x16a5bce3, 0x6774a4cd, 0x3e01511e, 0x4e508aaa, 0x61048c05, 
+        0xf5500617, 0x846b7115, 0x6a19892c, 0x896a97af, 0xdb48f936, 0x14898454, 
+        0x37ffd106, 0xb58bff9c, 0x59e17104, 0xcf918a49, 0x09378c83, 0x52c7a471, 
+        0x8d293ea9, 0x1f4fc301, 0xc3db71be, 0x39b44e1c, 0xf8a44ef9, 0x4c8b80b1, 
+        0x19edc328, 0x87bf4bdd, 0xc9b240e5, 0xe9ee4b1b, 0x4382aee7, 0x535b6b41, 
+        0xf3bec5da,
+};
+
+/*
+ * fptr and rptr are two pointers into the state info, a front and a rear
+ * pointer.  These two pointers are always rand_sep places aparts, as they
+ * cycle cyclically through the state information.  (Yes, this does mean we
+ * could get away with just one pointer, but the code for random() is more
+ * efficient this way).  The pointers are left positioned as they would be
+ * from the call
+ *
+ *      initstate(1, randtbl, 128);
+ *
+ * (The position of the rear pointer, rptr, is really 0 (as explained above
+ * in the initialization of randtbl) because the state table pointer is set
+ * to point to randtbl[1] (as explained below).
+ */
+static int32_t *fptr = &randtbl[SEP_3 + 1];
+static int32_t *rptr = &randtbl[1];
+
+/*
+ * The following things are the pointer to the state information table, the
+ * type of the current generator, the degree of the current polynomial being
+ * used, and the separation between the two pointers.  Note that for efficiency
+ * of random(), we remember the first location of the state information, not
+ * the zeroeth.  Hence it is valid to access state[-1], which is used to
+ * store the type of the R.N.G.  Also, we remember the last location, since
+ * this is more efficient than indexing every time to find the address of
+ * the last element to see if the front and rear pointers have wrapped.
+ */
+static int32_t *state = &randtbl[1];
+static int32_t *end_ptr = &randtbl[DEG_3 + 1];
+static int rand_type = TYPE_3;
+static int rand_deg = DEG_3;
+static int rand_sep = SEP_3;
+
+_THREAD_PRIVATE_MUTEX(random);
+static long random_l(void);
+
+#define LOCK() _THREAD_PRIVATE_MUTEX_LOCK(random)
+#define UNLOCK() _THREAD_PRIVATE_MUTEX_UNLOCK(random)
+
+/*
+ * srandom:
+ *
+ * Initialize the random number generator based on the given seed.  If the
+ * type is the trivial no-state-information type, just remember the seed.
+ * Otherwise, initializes state[] based on the given "seed" via a linear
+ * congruential generator.  Then, the pointers are set to known locations
+ * that are exactly rand_sep places apart.  Lastly, it cycles the state
+ * information a given number of times to get rid of any initial dependencies
+ * introduced by the L.C.R.N.G.  Note that the initialization of randtbl[]
+ * for default usage relies on values produced by this routine.
+ */
+static void
+srandom_l(unsigned int x)
+{
+        int i;
+        int32_t test;
+        div_t val;
+
+        if (rand_type == TYPE_0)
+                state[0] = x;
+        else {
+                /* A seed of 0 would result in state[] always being zero. */
+                state[0] = x ? x : 1;
+                for (i = 1; i < rand_deg; i++) {
+                        /*
+                         * Implement the following, without overflowing 31 bits:
+                         *
+                         *      state[i] = (16807 * state[i - 1]) % 2147483647;
+                         *
+                         *      2^31-1 (prime) = 2147483647 = 127773*16807+2836
+                         */
+                        val = div(state[i-1], 127773);
+                        test = 16807 * val.rem - 2836 * val.quot;
+                        state[i] = test + (test < 0 ? 2147483647 : 0);
+                }
+                fptr = &state[rand_sep];
+                rptr = &state[0];
+                for (i = 0; i < 10 * rand_deg; i++)
+                        (void)random_l();
+        }
+}
+
+void
+srandom(unsigned int x)
+{
+        LOCK();
+        srandom_l(x);
+        UNLOCK();
+}
+
+#if defined(APIWARN)
+__warn_references(srandom,
+    "warning: srandom() seed choices are invariably poor");
+#endif
+
+/*
+ * srandomdev:
+ *
+ * Many programs choose the seed value in a totally predictable manner.
+ * This often causes problems.  We seed the generator using random
+ * data from the kernel.
+ * Note that this particular seeding procedure can generate states
+ * which are impossible to reproduce by calling srandom() with any
+ * value, since the succeeding terms in the state buffer are no longer
+ * derived from the LC algorithm applied to a fixed seed.
+ */
+void
+srandomdev(void)
+{
+        int mib[2];
+        size_t len;
+
+        LOCK();
+        if (rand_type == TYPE_0)
+                len = sizeof(state[0]);
+        else
+                len = rand_deg * sizeof(state[0]);
+
+        mib[0] = CTL_KERN;
+        mib[1] = KERN_ARND;
+        sysctl(mib, 2, state, &len, NULL, 0);
+
+        if (rand_type != TYPE_0) {
+                fptr = &state[rand_sep];
+                rptr = &state[0];
+        }
+        UNLOCK();
+}
+
+#if defined(APIWARN)
+__warn_references(srandomdev,
+    "warning: srandomdev() usage; consider switching to arc4random()");
+#endif
+
+/*
+ * initstate:
+ *
+ * Initialize the state information in the given array of n bytes for future
+ * random number generation.  Based on the number of bytes we are given, and
+ * the break values for the different R.N.G.'s, we choose the best (largest)
+ * one we can and set things up for it.  srandom() is then called to
+ * initialize the state information.
+ * 
+ * Note that on return from srandom(), we set state[-1] to be the type
+ * multiplexed with the current value of the rear pointer; this is so
+ * successive calls to initstate() won't lose this information and will be
+ * able to restart with setstate().
+ * 
+ * Note: the first thing we do is save the current state, if any, just like
+ * setstate() so that it doesn't matter when initstate is called.
+ *
+ * Returns a pointer to the old state.
+ */
+char *
+initstate(u_int seed, char *arg_state, size_t n)
+{
+        char *ostate = (char *)(&state[-1]);
+
+        LOCK();
+        if (rand_type == TYPE_0)
+                state[-1] = rand_type;
+        else
+                state[-1] = MAX_TYPES * (rptr - state) + rand_type;
+        if (n < BREAK_0) {
+                UNLOCK();
+                return(NULL);
+        }
+        if (n < BREAK_1) {
+                rand_type = TYPE_0;
+                rand_deg = DEG_0;
+                rand_sep = SEP_0;
+        } else if (n < BREAK_2) {
+                rand_type = TYPE_1;
+                rand_deg = DEG_1;
+                rand_sep = SEP_1;
+        } else if (n < BREAK_3) {
+                rand_type = TYPE_2;
+                rand_deg = DEG_2;
+                rand_sep = SEP_2;
+        } else if (n < BREAK_4) {
+                rand_type = TYPE_3;
+                rand_deg = DEG_3;
+                rand_sep = SEP_3;
+        } else {
+                rand_type = TYPE_4;
+                rand_deg = DEG_4;
+                rand_sep = SEP_4;
+        }
+        state = &(((int32_t *)arg_state)[1]);   /* first location */
+        end_ptr = &state[rand_deg];     /* must set end_ptr before srandom */
+        srandom_l(seed);
+        if (rand_type == TYPE_0)
+                state[-1] = rand_type;
+        else
+                state[-1] = MAX_TYPES*(rptr - state) + rand_type;
+        UNLOCK();
+        return(ostate);
+}
+
+/*
+ * setstate:
+ *
+ * Restore the state from the given state array.
+ *
+ * Note: it is important that we also remember the locations of the pointers
+ * in the current state information, and restore the locations of the pointers
+ * from the old state information.  This is done by multiplexing the pointer
+ * location into the zeroeth word of the state information.
+ *
+ * Note that due to the order in which things are done, it is OK to call
+ * setstate() with the same state as the current state.
+ *
+ * Returns a pointer to the old state information.
+ */
+char *
+setstate(char *arg_state)
+{
+        int32_t *new_state = (int32_t *)arg_state;
+        int32_t type = new_state[0] % MAX_TYPES;
+        int32_t rear = new_state[0] / MAX_TYPES;
+        char *ostate = (char *)(&state[-1]);
+
+        LOCK();
+        if (rand_type == TYPE_0)
+                state[-1] = rand_type;
+        else
+                state[-1] = MAX_TYPES * (rptr - state) + rand_type;
+        switch(type) {
+        case TYPE_0:
+        case TYPE_1:
+        case TYPE_2:
+        case TYPE_3:
+        case TYPE_4:
+                rand_type = type;
+                rand_deg = degrees[type];
+                rand_sep = seps[type];
+                break;
+        default:
+                UNLOCK();
+                return(NULL);
+        }
+        state = &new_state[1];
+        if (rand_type != TYPE_0) {
+                rptr = &state[rear];
+                fptr = &state[(rear + rand_sep) % rand_deg];
+        }
+        end_ptr = &state[rand_deg];             /* set end_ptr too */
+        UNLOCK();
+        return(ostate);
+}
+
+/*
+ * random:
+ *
+ * If we are using the trivial TYPE_0 R.N.G., just do the old linear
+ * congruential bit.  Otherwise, we do our fancy trinomial stuff, which is
+ * the same in all the other cases due to all the global variables that have
+ * been set up.  The basic operation is to add the number at the rear pointer
+ * into the one at the front pointer.  Then both pointers are advanced to
+ * the next location cyclically in the table.  The value returned is the sum
+ * generated, reduced to 31 bits by throwing away the "least random" low bit.
+ *
+ * Note: the code takes advantage of the fact that both the front and
+ * rear pointers can't wrap on the same call by not testing the rear
+ * pointer if the front one has wrapped.
+ *
+ * Returns a 31-bit random number.
+ */
+static long
+random_l(void)
+{
+        int32_t i;
+
+        if (rand_type == TYPE_0)
+                i = state[0] = (state[0] * 1103515245 + 12345) & 0x7fffffff;
+        else {
+                *fptr += *rptr;
+                i = (*fptr >> 1) & 0x7fffffff;  /* chucking least random bit */
+                if (++fptr >= end_ptr) {
+                        fptr = state;
+                        ++rptr;
+                } else if (++rptr >= end_ptr)
+                        rptr = state;
+        }
+        return((long)i);
+}
+
+long
+random(void)
+{
+        long r;
+        LOCK();
+        r = random_l();
+        UNLOCK();
+        return r;
+}
+
+#if defined(APIWARN)
+__warn_references(random,
+    "warning: random() isn't random; consider using arc4random()");
+#endif
diff --git a/src/lib/libc/stdlib/realpath.3 b/src/lib/libc/stdlib/realpath.3
new file mode 100644
index 0000000000..5966b38058
--- /dev/null
+++ b/src/lib/libc/stdlib/realpath.3
@@ -0,0 +1,130 @@
+.\" Copyright (c) 1994
+.\"     The Regents of the University of California.  All rights reserved.
+.\"
+.\" This code is derived from software contributed to Berkeley by
+.\" Jan-Simon Pendry.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\" 3. Neither the name of the University nor the names of its contributors
+.\"    may be used to endorse or promote products derived from this software
+.\"    without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.\"     $OpenBSD: realpath.3,v 1.19 2014/01/20 22:40:06 schwarze Exp $
+.\"
+.Dd $Mdocdate: January 20 2014 $
+.Dt REALPATH 3
+.Os
+.Sh NAME
+.Nm realpath
+.Nd returns the canonicalized absolute pathname
+.Sh SYNOPSIS
+.In limits.h
+.In stdlib.h
+.Ft "char *"
+.Fn realpath "const char *pathname" "char *resolved"
+.Sh DESCRIPTION
+The
+.Fn realpath
+function resolves all symbolic links, extra
+.Dq /
+characters and references to
+.Pa /./
+and
+.Pa /../
+in
+.Fa pathname ,
+and copies the resulting absolute pathname into the memory referenced by
+.Fa resolved .
+The
+.Fa resolved
+argument
+.Em must
+refer to a buffer capable of storing at least
+.Dv PATH_MAX
+characters, or be
+.Dv NULL .
+.Pp
+The
+.Fn realpath
+function will resolve both absolute and relative paths
+and return the absolute pathname corresponding to
+.Fa pathname .
+All but the last component of
+.Fa pathname
+must exist when
+.Fn realpath
+is called.
+.Sh RETURN VALUES
+The
+.Fn realpath
+function returns
+.Fa resolved
+on success.
+If
+.Fa resolved
+is
+.Dv NULL
+and no error occurred, then
+.Fn realpath
+returns a NUL-terminated string in a newly allocated buffer.
+If an error occurs,
+.Fn realpath
+returns
+.Dv NULL
+and the contents of
+.Fa resolved
+are undefined.
+.Sh ERRORS
+The function
+.Fn realpath
+may fail and set the external variable
+.Va errno
+for any of the errors specified for the library functions
+.Xr lstat 2 ,
+.Xr readlink 2 ,
+and
+.Xr getcwd 3 .
+.Sh SEE ALSO
+.Xr readlink 1 ,
+.Xr getcwd 3
+.Sh STANDARDS
+The
+.Fn realpath
+function conforms to
+.St -p1003.1-2008 .
+.Sh HISTORY
+The
+.Fn realpath
+function call first appeared in
+.Bx 4.4 .
+.Sh CAVEATS
+This implementation of
+.Fn realpath
+differs slightly from the Solaris implementation.
+The
+.Bx 4.4
+version always returns absolute pathnames,
+whereas the Solaris implementation will,
+under certain circumstances, return a relative
+.Fa resolved
+when given a relative
+.Fa pathname .
diff --git a/src/lib/libc/stdlib/realpath.c b/src/lib/libc/stdlib/realpath.c
new file mode 100644
index 0000000000..e0f9b123b3
--- /dev/null
+++ b/src/lib/libc/stdlib/realpath.c
@@ -0,0 +1,214 @@
+/*      $OpenBSD: realpath.c,v 1.16 2013/04/05 12:59:54 kurt Exp $ */
+/*
+ * Copyright (c) 2003 Constantin S. Svintsoff <kostik@iclub.nsu.ru>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. The names of the authors may not be used to endorse or promote
+ *    products derived from this software without specific prior written
+ *    permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <sys/param.h>
+#include <sys/stat.h>
+
+#include <errno.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+/* A slightly modified copy of this file exists in libexec/ld.so */
+
+/*
+ * char *realpath(const char *path, char resolved[PATH_MAX]);
+ *
+ * Find the real name of path, by removing all ".", ".." and symlink
+ * components.  Returns (resolved) on success, or (NULL) on failure,
+ * in which case the path which caused trouble is left in (resolved).
+ */
+char *
+realpath(const char *path, char *resolved)
+{
+        struct stat sb;
+        char *p, *q, *s;
+        size_t left_len, resolved_len;
+        unsigned symlinks;
+        int serrno, slen, mem_allocated;
+        char left[PATH_MAX], next_token[PATH_MAX], symlink[PATH_MAX];
+
+        if (path[0] == '\0') {
+                errno = ENOENT;
+                return (NULL);
+        }
+
+        serrno = errno;
+
+        if (resolved == NULL) {
+                resolved = malloc(PATH_MAX);
+                if (resolved == NULL)
+                        return (NULL);
+                mem_allocated = 1;
+        } else
+                mem_allocated = 0;
+
+        symlinks = 0;
+        if (path[0] == '/') {
+                resolved[0] = '/';
+                resolved[1] = '\0';
+                if (path[1] == '\0')
+                        return (resolved);
+                resolved_len = 1;
+                left_len = strlcpy(left, path + 1, sizeof(left));
+        } else {
+                if (getcwd(resolved, PATH_MAX) == NULL) {
+                        if (mem_allocated)
+                                free(resolved);
+                        else
+                                strlcpy(resolved, ".", PATH_MAX);
+                        return (NULL);
+                }
+                resolved_len = strlen(resolved);
+                left_len = strlcpy(left, path, sizeof(left));
+        }
+        if (left_len >= sizeof(left) || resolved_len >= PATH_MAX) {
+                errno = ENAMETOOLONG;
+                goto err;
+        }
+
+        /*
+         * Iterate over path components in `left'.
+         */
+        while (left_len != 0) {
+                /*
+                 * Extract the next path component and adjust `left'
+                 * and its length.
+                 */
+                p = strchr(left, '/');
+                s = p ? p : left + left_len;
+                if (s - left >= sizeof(next_token)) {
+                        errno = ENAMETOOLONG;
+                        goto err;
+                }
+                memcpy(next_token, left, s - left);
+                next_token[s - left] = '\0';
+                left_len -= s - left;
+                if (p != NULL)
+                        memmove(left, s + 1, left_len + 1);
+                if (resolved[resolved_len - 1] != '/') {
+                        if (resolved_len + 1 >= PATH_MAX) {
+                                errno = ENAMETOOLONG;
+                                goto err;
+                        }
+                        resolved[resolved_len++] = '/';
+                        resolved[resolved_len] = '\0';
+                }
+                if (next_token[0] == '\0')
+                        continue;
+                else if (strcmp(next_token, ".") == 0)
+                        continue;
+                else if (strcmp(next_token, "..") == 0) {
+                        /*
+                         * Strip the last path component except when we have
+                         * single "/"
+                         */
+                        if (resolved_len > 1) {
+                                resolved[resolved_len - 1] = '\0';
+                                q = strrchr(resolved, '/') + 1;
+                                *q = '\0';
+                                resolved_len = q - resolved;
+                        }
+                        continue;
+                }
+
+                /*
+                 * Append the next path component and lstat() it. If
+                 * lstat() fails we still can return successfully if
+                 * there are no more path components left.
+                 */
+                resolved_len = strlcat(resolved, next_token, PATH_MAX);
+                if (resolved_len >= PATH_MAX) {
+                        errno = ENAMETOOLONG;
+                        goto err;
+                }
+                if (lstat(resolved, &sb) != 0) {
+                        if (errno == ENOENT && p == NULL) {
+                                errno = serrno;
+                                return (resolved);
+                        }
+                        goto err;
+                }
+                if (S_ISLNK(sb.st_mode)) {
+                        if (symlinks++ > MAXSYMLINKS) {
+                                errno = ELOOP;
+                                goto err;
+                        }
+                        slen = readlink(resolved, symlink, sizeof(symlink) - 1);
+                        if (slen < 0)
+                                goto err;
+                        symlink[slen] = '\0';
+                        if (symlink[0] == '/') {
+                                resolved[1] = 0;
+                                resolved_len = 1;
+                        } else if (resolved_len > 1) {
+                                /* Strip the last path component. */
+                                resolved[resolved_len - 1] = '\0';
+                                q = strrchr(resolved, '/') + 1;
+                                *q = '\0';
+                                resolved_len = q - resolved;
+                        }
+
+                        /*
+                         * If there are any path components left, then
+                         * append them to symlink. The result is placed
+                         * in `left'.
+                         */
+                        if (p != NULL) {
+                                if (symlink[slen - 1] != '/') {
+                                        if (slen + 1 >= sizeof(symlink)) {
+                                                errno = ENAMETOOLONG;
+                                                goto err;
+                                        }
+                                        symlink[slen] = '/';
+                                        symlink[slen + 1] = 0;
+                                }
+                                left_len = strlcat(symlink, left, sizeof(symlink));
+                                if (left_len >= sizeof(left)) {
+                                        errno = ENAMETOOLONG;
+                                        goto err;
+                                }
+                        }
+                        left_len = strlcpy(left, symlink, sizeof(left));
+                }
+        }
+
+        /*
+         * Remove trailing slash except when the resolved pathname
+         * is a single "/".
+         */
+        if (resolved_len > 1 && resolved[resolved_len - 1] == '/')
+                resolved[resolved_len - 1] = '\0';
+        return (resolved);
+
+err:
+        if (mem_allocated)
+                free(resolved);
+        return (NULL);
+}
diff --git a/src/lib/libc/stdlib/remque.c b/src/lib/libc/stdlib/remque.c
new file mode 100644
index 0000000000..ae249ae053
--- /dev/null
+++ b/src/lib/libc/stdlib/remque.c
@@ -0,0 +1,44 @@
+/*      $OpenBSD: remque.c,v 1.2 2005/08/08 08:05:37 espie Exp $        */
+
+/*
+ *  Copyright (c) 1993 John Brezak
+ *  All rights reserved.
+ * 
+ *  Redistribution and use in source and binary forms, with or without
+ *  modification, are permitted provided that the following conditions
+ *  are met:
+ *  1. Redistributions of source code must retain the above copyright
+ *     notice, this list of conditions and the following disclaimer.
+ *  2. Redistributions in binary form must reproduce the above copyright
+ *     notice, this list of conditions and the following disclaimer in the
+ *     documentation and/or other materials provided with the distribution.
+ *  3. The name of the author may be used to endorse or promote products
+ *     derived from this software without specific prior written permission.
+ * 
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR `AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
+ * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+ * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <search.h>
+
+struct qelem {
+        struct qelem *q_forw;
+        struct qelem *q_back;
+};
+
+void
+remque(void *element)
+{
+        struct qelem *e = (struct qelem *) element;
+        e->q_forw->q_back = e->q_back;
+        e->q_back->q_forw = e->q_forw;
+}
diff --git a/src/lib/libc/stdlib/seed48.c b/src/lib/libc/stdlib/seed48.c
new file mode 100644
index 0000000000..583262f2d5
--- /dev/null
+++ b/src/lib/libc/stdlib/seed48.c
@@ -0,0 +1,37 @@
+/*      $OpenBSD: seed48.c,v 1.3 2005/08/08 08:05:37 espie Exp $ */
+/*
+ * Copyright (c) 1993 Martin Birgmeier
+ * All rights reserved.
+ *
+ * You may redistribute unmodified or modified versions of this source
+ * code provided that the above copyright notice and this and the
+ * following conditions are retained.
+ *
+ * This software is provided ``as is'', and comes with no warranties
+ * of any kind. I shall in no event be liable for anything that happens
+ * to anyone/anything when using this software.
+ */
+
+#include "rand48.h"
+
+extern unsigned short __rand48_seed[3];
+extern unsigned short __rand48_mult[3];
+extern unsigned short __rand48_add;
+
+unsigned short *
+seed48(unsigned short xseed[3])
+{
+        static unsigned short sseed[3];
+
+        sseed[0] = __rand48_seed[0];
+        sseed[1] = __rand48_seed[1];
+        sseed[2] = __rand48_seed[2];
+        __rand48_seed[0] = xseed[0];
+        __rand48_seed[1] = xseed[1];
+        __rand48_seed[2] = xseed[2];
+        __rand48_mult[0] = RAND48_MULT_0;
+        __rand48_mult[1] = RAND48_MULT_1;
+        __rand48_mult[2] = RAND48_MULT_2;
+        __rand48_add = RAND48_ADD;
+        return sseed;
+}
diff --git a/src/lib/libc/stdlib/setenv.c b/src/lib/libc/stdlib/setenv.c
new file mode 100644
index 0000000000..9060fdba88
--- /dev/null
+++ b/src/lib/libc/stdlib/setenv.c
@@ -0,0 +1,180 @@
+/*      $OpenBSD: setenv.c,v 1.14 2012/09/23 16:08:04 jeremy Exp $ */
+/*
+ * Copyright (c) 1987 Regents of the University of California.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <errno.h>
+#include <stdlib.h>
+#include <string.h>
+
+char *__findenv(const char *name, int len, int *offset);
+
+extern char **environ;
+static char **lastenv;                          /* last value of environ */
+
+/*
+ * putenv --
+ *      Add a name=value string directly to the environmental, replacing
+ *      any current value.
+ */
+int
+putenv(char *str)
+{
+        char **P, *cp;
+        size_t cnt;
+        int offset = 0;
+
+        for (cp = str; *cp && *cp != '='; ++cp)
+                ;
+        if (*cp != '=') {
+                errno = EINVAL;
+                return (-1);                    /* missing `=' in string */
+        }
+
+        if (__findenv(str, (int)(cp - str), &offset) != NULL) {
+                environ[offset++] = str;
+                /* could be set multiple times */
+                while (__findenv(str, (int)(cp - str), &offset)) {
+                        for (P = &environ[offset];; ++P)
+                                if (!(*P = *(P + 1)))
+                                        break;
+                }
+                return (0);
+        }
+
+        /* create new slot for string */
+        for (P = environ; *P != NULL; P++)
+                ;
+        cnt = P - environ;
+        P = (char **)realloc(lastenv, sizeof(char *) * (cnt + 2));
+        if (!P)
+                return (-1);
+        if (lastenv != environ)
+                memcpy(P, environ, cnt * sizeof(char *));
+        lastenv = environ = P;
+        environ[cnt] = str;
+        environ[cnt + 1] = NULL;
+        return (0);
+}
+
+/*
+ * setenv --
+ *      Set the value of the environmental variable "name" to be
+ *      "value".  If rewrite is set, replace any current value.
+ */
+int
+setenv(const char *name, const char *value, int rewrite)
+{
+        char *C, **P;
+        const char *np;
+        int l_value, offset = 0;
+
+        if (!name || !*name) {
+                errno = EINVAL;
+                return (-1);
+        }
+        for (np = name; *np && *np != '='; ++np)
+                ;
+        if (*np) {
+                errno = EINVAL;
+                return (-1);                    /* has `=' in name */
+        }
+
+        l_value = strlen(value);
+        if ((C = __findenv(name, (int)(np - name), &offset)) != NULL) {
+                int tmpoff = offset + 1;
+                if (!rewrite)
+                        return (0);
+#if 0 /* XXX - existing entry may not be writable */
+                if (strlen(C) >= l_value) {     /* old larger; copy over */
+                        while ((*C++ = *value++))
+                                ;
+                        return (0);
+                }
+#endif
+                /* could be set multiple times */
+                while (__findenv(name, (int)(np - name), &tmpoff)) {
+                        for (P = &environ[tmpoff];; ++P)
+                                if (!(*P = *(P + 1)))
+                                        break;
+                }
+        } else {                                        /* create new slot */
+                size_t cnt;
+
+                for (P = environ; *P != NULL; P++)
+                        ;
+                cnt = P - environ;
+                P = (char **)realloc(lastenv, sizeof(char *) * (cnt + 2));
+                if (!P)
+                        return (-1);
+                if (lastenv != environ)
+                        memcpy(P, environ, cnt * sizeof(char *));
+                lastenv = environ = P;
+                offset = cnt;
+                environ[cnt + 1] = NULL;
+        }
+        if (!(environ[offset] =                 /* name + `=' + value */
+            malloc((size_t)((int)(np - name) + l_value + 2))))
+                return (-1);
+        for (C = environ[offset]; (*C = *name++) && *C != '='; ++C)
+                ;
+        for (*C++ = '='; (*C++ = *value++); )
+                ;
+        return (0);
+}
+
+/*
+ * unsetenv(name) --
+ *      Delete environmental variable "name".
+ */
+int
+unsetenv(const char *name)
+{
+        char **P;
+        const char *np;
+        int offset = 0;
+
+        if (!name || !*name) {
+                errno = EINVAL;
+                return (-1);
+        }
+        for (np = name; *np && *np != '='; ++np)
+                ;
+        if (*np) {
+                errno = EINVAL;
+                return (-1);                    /* has `=' in name */
+        }
+
+        /* could be set multiple times */
+        while (__findenv(name, (int)(np - name), &offset)) {
+                for (P = &environ[offset];; ++P)
+                        if (!(*P = *(P + 1)))
+                                break;
+        }
+        return (0);
+}
diff --git a/src/lib/libc/stdlib/srand48.c b/src/lib/libc/stdlib/srand48.c
new file mode 100644
index 0000000000..f76b6cca86
--- /dev/null
+++ b/src/lib/libc/stdlib/srand48.c
@@ -0,0 +1,31 @@
+/*      $OpenBSD: srand48.c,v 1.3 2005/08/08 08:05:37 espie Exp $ */
+/*
+ * Copyright (c) 1993 Martin Birgmeier
+ * All rights reserved.
+ *
+ * You may redistribute unmodified or modified versions of this source
+ * code provided that the above copyright notice and this and the
+ * following conditions are retained.
+ *
+ * This software is provided ``as is'', and comes with no warranties
+ * of any kind. I shall in no event be liable for anything that happens
+ * to anyone/anything when using this software.
+ */
+
+#include "rand48.h"
+
+extern unsigned short __rand48_seed[3];
+extern unsigned short __rand48_mult[3];
+extern unsigned short __rand48_add;
+
+void
+srand48(long seed)
+{
+        __rand48_seed[0] = RAND48_SEED_0;
+        __rand48_seed[1] = (unsigned short) seed;
+        __rand48_seed[2] = (unsigned short) (seed >> 16);
+        __rand48_mult[0] = RAND48_MULT_0;
+        __rand48_mult[1] = RAND48_MULT_1;
+        __rand48_mult[2] = RAND48_MULT_2;
+        __rand48_add = RAND48_ADD;
+}
diff --git a/src/lib/libc/stdlib/strtod.3 b/src/lib/libc/stdlib/strtod.3
new file mode 100644
index 0000000000..6f079b73a9
--- /dev/null
+++ b/src/lib/libc/stdlib/strtod.3
@@ -0,0 +1,167 @@
+.\" Copyright (c) 1990, 1991 The Regents of the University of California.
+.\" All rights reserved.
+.\"
+.\" This code is derived from software contributed to Berkeley by
+.\" the American National Standards Committee X3, on Information
+.\" Processing Systems.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\" 3. Neither the name of the University nor the names of its contributors
+.\"    may be used to endorse or promote products derived from this software
+.\"    without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.\"     $OpenBSD: strtod.3,v 1.19 2014/01/19 10:39:00 schwarze Exp $
+.\"
+.Dd $Mdocdate: January 19 2014 $
+.Dt STRTOD 3
+.Os
+.Sh NAME
+.Nm strtod ,
+.Nm strtof ,
+.Nm strtold
+.Nd convert ASCII string to double, float or long double
+.Sh SYNOPSIS
+.In stdlib.h
+.Ft double
+.Fn strtod "const char *nptr" "char **endptr"
+.Pp
+.Ft float
+.Fn strtof "const char *nptr" "char **endptr"
+.Pp
+.Ft long double
+.Fn strtold "const char *nptr" "char **endptr"
+.Sh DESCRIPTION
+The
+.Fn strtod
+function converts the initial portion of the string pointed to by
+.Fa nptr
+to
+.Li double
+representation.
+The
+.Fn strtof
+function converts the initial portion of the string pointed to by
+.Fa nptr
+to
+.Li float
+representation.
+The
+.Fn strtold
+function converts the initial portion of the string pointed to by
+.Fa nptr
+to
+.Li long double
+representation.
+.Pp
+The expected form of the string is an optional plus
+.Pq Ql +
+or minus sign
+.Pq Ql -
+followed by a sequence of digits optionally containing
+a decimal-point character, optionally followed by an exponent.
+An exponent consists of an
+.Sq E
+or
+.Sq e ,
+followed by an optional plus or minus sign, followed by a sequence of digits.
+.Pp
+Alternatively, if the portion of the string following the optional
+plus or minus sign begins with
+.Dq INF
+or
+.Dq NAN ,
+ignoring case, it is interpreted as an infinity or a quiet \*(Na,
+respectively.
+The syntax
+.Dq NAN Ns Pq Ar s ,
+where
+.Ar s
+is an alphanumeric string, produces the same value as the call
+.Fo nan
+.Qq Ar s Ns
+.Fc
+(respectively,
+.Fo nanf
+.Qq Ar s Ns
+.Fc
+and
+.Fo nanl
+.Qq Ar s Ns
+.Fc . )
+.Pp
+In any of the above cases, leading whitespace characters in the
+string (as defined by the
+.Xr isspace 3
+function) are skipped.
+.Sh RETURN VALUES
+The
+.Fn strtod ,
+.Fn strtof
+and
+.Fn strtold
+functions return the converted value, if any.
+.Pp
+If
+.Fa endptr
+is not
+.Dv NULL ,
+a pointer to the character after the last character used
+in the conversion is stored in the location referenced by
+.Fa endptr .
+.Pp
+If no conversion is performed, zero is returned and the value of
+.Fa nptr
+is stored in the location referenced by
+.Fa endptr .
+.Pp
+If the correct value would cause overflow, plus or minus
+.Dv HUGE_VAL
+is returned (according to the sign of the value), and
+.Er ERANGE
+is stored in
+.Va errno .
+If the correct value would cause underflow, zero is returned and
+.Er ERANGE
+is stored in
+.Va errno .
+.Sh ERRORS
+.Bl -tag -width Er
+.It Bq Er ERANGE
+Overflow or underflow occurred.
+.El
+.Sh SEE ALSO
+.Xr atof 3 ,
+.Xr atoi 3 ,
+.Xr atol 3 ,
+.Xr strtol 3 ,
+.Xr strtoul 3
+.Sh STANDARDS
+The
+.Fn strtod
+function conforms to
+.St -ansiC-89 .
+The
+.Fn strtof
+and
+.Fn strtold
+functions conform to
+.St -ansiC-99 .
diff --git a/src/lib/libc/stdlib/strtoimax.c b/src/lib/libc/stdlib/strtoimax.c
new file mode 100644
index 0000000000..2c77f41650
--- /dev/null
+++ b/src/lib/libc/stdlib/strtoimax.c
@@ -0,0 +1,140 @@
+/*      $OpenBSD: strtoimax.c,v 1.1 2006/01/13 17:58:09 millert Exp $   */
+
+/*-
+ * Copyright (c) 1992 The Regents of the University of California.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <ctype.h>
+#include <errno.h>
+#include <inttypes.h>
+
+/*
+ * Convert a string to an intmax_t
+ *
+ * Ignores `locale' stuff.  Assumes that the upper and lower case
+ * alphabets and digits are each contiguous.
+ */
+intmax_t
+strtoimax(const char *nptr, char **endptr, int base)
+{
+        const char *s;
+        intmax_t acc, cutoff;
+        int c;
+        int neg, any, cutlim;
+
+        /*
+         * Skip white space and pick up leading +/- sign if any.
+         * If base is 0, allow 0x for hex and 0 for octal, else
+         * assume decimal; if base is already 16, allow 0x.
+         */
+        s = nptr;
+        do {
+                c = (unsigned char) *s++;
+        } while (isspace(c));
+        if (c == '-') {
+                neg = 1;
+                c = *s++;
+        } else {
+                neg = 0;
+                if (c == '+')
+                        c = *s++;
+        }
+        if ((base == 0 || base == 16) &&
+            c == '0' && (*s == 'x' || *s == 'X')) {
+                c = s[1];
+                s += 2;
+                base = 16;
+        }
+        if (base == 0)
+                base = c == '0' ? 8 : 10;
+
+        /*
+         * Compute the cutoff value between legal numbers and illegal
+         * numbers.  That is the largest legal value, divided by the
+         * base.  An input number that is greater than this value, if
+         * followed by a legal input character, is too big.  One that
+         * is equal to this value may be valid or not; the limit
+         * between valid and invalid numbers is then based on the last
+         * digit.  For instance, if the range for intmax_t is
+         * [-9223372036854775808..9223372036854775807] and the input base
+         * is 10, cutoff will be set to 922337203685477580 and cutlim to
+         * either 7 (neg==0) or 8 (neg==1), meaning that if we have
+         * accumulated a value > 922337203685477580, or equal but the
+         * next digit is > 7 (or 8), the number is too big, and we will
+         * return a range error.
+         *
+         * Set any if any `digits' consumed; make it negative to indicate
+         * overflow.
+         */
+        cutoff = neg ? INTMAX_MIN : INTMAX_MAX;
+        cutlim = cutoff % base;
+        cutoff /= base;
+        if (neg) {
+                if (cutlim > 0) {
+                        cutlim -= base;
+                        cutoff += 1;
+                }
+                cutlim = -cutlim;
+        }
+        for (acc = 0, any = 0;; c = (unsigned char) *s++) {
+                if (isdigit(c))
+                        c -= '0';
+                else if (isalpha(c))
+                        c -= isupper(c) ? 'A' - 10 : 'a' - 10;
+                else
+                        break;
+                if (c >= base)
+                        break;
+                if (any < 0)
+                        continue;
+                if (neg) {
+                        if (acc < cutoff || (acc == cutoff && c > cutlim)) {
+                                any = -1;
+                                acc = INTMAX_MIN;
+                                errno = ERANGE;
+                        } else {
+                                any = 1;
+                                acc *= base;
+                                acc -= c;
+                        }
+                } else {
+                        if (acc > cutoff || (acc == cutoff && c > cutlim)) {
+                                any = -1;
+                                acc = INTMAX_MAX;
+                                errno = ERANGE;
+                        } else {
+                                any = 1;
+                                acc *= base;
+                                acc += c;
+                        }
+                }
+        }
+        if (endptr != 0)
+                *endptr = (char *) (any ? s - 1 : nptr);
+        return (acc);
+}
diff --git a/src/lib/libc/stdlib/strtol.3 b/src/lib/libc/stdlib/strtol.3
new file mode 100644
index 0000000000..c0a60979d9
--- /dev/null
+++ b/src/lib/libc/stdlib/strtol.3
@@ -0,0 +1,264 @@
+.\" Copyright (c) 1990, 1991 The Regents of the University of California.
+.\" All rights reserved.
+.\"
+.\" This code is derived from software contributed to Berkeley by
+.\" Chris Torek and the American National Standards Committee X3,
+.\" on Information Processing Systems.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\" 3. Neither the name of the University nor the names of its contributors
+.\"    may be used to endorse or promote products derived from this software
+.\"    without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.\"     $OpenBSD: strtol.3,v 1.24 2013/08/14 06:32:28 jmc Exp $
+.\"
+.Dd $Mdocdate: August 14 2013 $
+.Dt STRTOL 3
+.Os
+.Sh NAME
+.Nm strtol ,
+.Nm strtoll ,
+.Nm strtoimax ,
+.Nm strtoq ,
+.Nd convert string value to a long, long long or intmax_t integer
+.Sh SYNOPSIS
+.In limits.h
+.In stdlib.h
+.Ft long
+.Fn strtol "const char *nptr" "char **endptr" "int base"
+.Pp
+.Ft long long
+.Fn strtoll "const char *nptr" "char **endptr" "int base"
+.Pp
+.In inttypes.h
+.Ft intmax_t
+.Fn strtoimax "const char *nptr" "char **endptr" "int base"
+.Pp
+.In sys/types.h
+.In limits.h
+.In stdlib.h
+.Ft quad_t
+.Fn strtoq "const char *nptr" "char **endptr" "int base"
+.Sh DESCRIPTION
+The
+.Fn strtol
+function converts the string in
+.Fa nptr
+to a
+.Li long
+value.
+The
+.Fn strtoll
+function converts the string in
+.Fa nptr
+to a
+.Li long long
+value.
+The
+.Fn strtoimax
+function converts the string in
+.Fa nptr
+to an
+.Li intmax_t
+value.
+The
+.Fn strtoq
+function is a deprecated equivalent of
+.Fn strtoll
+and is provided for backwards compatibility with legacy programs.
+The conversion is done according to the given
+.Fa base ,
+which must be a number between 2 and 36 inclusive or the special value 0.
+.Pp
+The string may begin with an arbitrary amount of whitespace
+(as determined by
+.Xr isspace 3 )
+followed by a single optional
+.Ql +
+or
+.Ql -
+sign.
+If
+.Fa base
+is zero or 16, the string may then include a
+.Ql 0x
+prefix, and the number will be read in base 16; otherwise, a zero
+.Fa base
+is taken as 10 (decimal) unless the next character is
+.Ql 0 ,
+in which case it is taken as 8 (octal).
+.Pp
+The remainder of the string is converted to a
+.Li long ,
+.Li long long ,
+or
+.Li intmax_t ,
+value in the obvious manner,
+stopping at the first character which is not a valid digit
+in the given base.
+(In bases above 10, the letter
+.Ql A
+in either upper or lower case represents 10,
+.Ql B
+represents 11, and so forth, with
+.Ql Z
+representing 35.)
+.Pp
+If
+.Fa endptr
+is non-null,
+.Fn strtol
+stores the address of the first invalid character in
+.Fa *endptr .
+If there were no digits at all, however,
+.Fn strtol
+stores the original value of
+.Fa nptr
+in
+.Fa *endptr .
+(Thus, if
+.Fa *nptr
+is not
+.Ql \e0
+but
+.Fa **endptr
+is
+.Ql \e0
+on return, the entire string was valid.)
+.Sh RETURN VALUES
+The
+.Fn strtol ,
+.Fn strtoll ,
+.Fn strtoimax ,
+and
+.Fn strtoq
+functions return the result of the conversion,
+unless the value would underflow or overflow.
+If no conversion could be performed, 0 is returned;
+the global variable
+.Va errno
+is also set to
+.Er EINVAL ,
+though this is not portable across all platforms.
+If overflow or underflow occurs,
+.Va errno
+is set to
+.Er ERANGE
+and the function return value is as follows:
+.Bl -column "strtoimaxXX" "INTMAX_MIN" "INTMAX_MAX" -offset indent
+.It Sy Function Ta Sy underflow Ta Sy overflow
+.It Fn strtol Ta Dv LONG_MIN Ta Dv LONG_MAX
+.It Fn strtoll Ta Dv LLONG_MIN Ta Dv LLONG_MAX
+.It Fn strtoimax Ta Dv INTMAX_MIN Ta Dv INTMAX_MAX
+.It Fn strtoq Ta Dv LLONG_MIN Ta Dv LLONG_MAX
+.El
+.Sh EXAMPLES
+Ensuring that a string is a valid number (i.e., in range and containing no
+trailing characters) requires clearing
+.Va errno
+beforehand explicitly since
+.Va errno
+is not changed on a successful call to
+.Fn strtol ,
+and the return value of
+.Fn strtol
+cannot be used unambiguously to signal an error:
+.Bd -literal -offset indent
+char *ep;
+long lval;
+
+\&...
+
+errno = 0;
+lval = strtol(buf, &ep, 10);
+if (buf[0] == '\e0' || *ep != '\e0')
+        goto not_a_number;
+if (errno == ERANGE && (lval == LONG_MAX || lval == LONG_MIN))
+        goto out_of_range;
+.Ed
+.Pp
+This example will accept
+.Dq 12
+but not
+.Dq 12foo
+or
+.Dq 12\en .
+If trailing whitespace is acceptable, further checks must be done on
+.Va *ep ;
+alternately, use
+.Xr sscanf 3 .
+.Pp
+If
+.Fn strtol
+is being used instead of
+.Xr atoi 3 ,
+error checking is further complicated because the desired return value is an
+.Li int
+rather than a
+.Li long ;
+however, on some architectures integers and long integers are the same size.
+Thus the following is necessary:
+.Bd -literal -offset indent
+char *ep;
+int ival;
+long lval;
+
+\&...
+
+errno = 0;
+lval = strtol(buf, &ep, 10);
+if (buf[0] == '\e0' || *ep != '\e0')
+     goto not_a_number;
+if ((errno == ERANGE && (lval == LONG_MAX || lval == LONG_MIN)) ||
+    (lval > INT_MAX || lval < INT_MIN))
+     goto out_of_range;
+ival = lval;
+.Ed
+.Sh ERRORS
+.Bl -tag -width Er
+.It Bq Er ERANGE
+The given string was out of range; the value converted has been clamped.
+.El
+.Sh SEE ALSO
+.Xr atof 3 ,
+.Xr atoi 3 ,
+.Xr atol 3 ,
+.Xr atoll 3 ,
+.Xr sscanf 3 ,
+.Xr strtod 3 ,
+.Xr strtonum 3 ,
+.Xr strtoul 3
+.Sh STANDARDS
+The
+.Fn strtol ,
+.Fn strtoll ,
+and
+.Fn strtoimax
+functions conform to
+.St -ansiC-99 .
+The
+.Fn strtoq
+function is a
+.Bx
+extension and is provided for backwards compatibility with legacy programs.
+.Sh BUGS
+Ignores the current locale.
diff --git a/src/lib/libc/stdlib/strtol.c b/src/lib/libc/stdlib/strtol.c
new file mode 100644
index 0000000000..dc2cf8871c
--- /dev/null
+++ b/src/lib/libc/stdlib/strtol.c
@@ -0,0 +1,151 @@
+/*      $OpenBSD: strtol.c,v 1.9 2013/04/17 17:40:35 tedu Exp $ */
+/*-
+ * Copyright (c) 1990 The Regents of the University of California.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <ctype.h>
+#include <errno.h>
+#include <limits.h>
+#include <stdlib.h>
+
+
+/*
+ * Convert a string to a long integer.
+ *
+ * Ignores `locale' stuff.  Assumes that the upper and lower case
+ * alphabets and digits are each contiguous.
+ */
+long
+strtol(const char *nptr, char **endptr, int base)
+{
+        const char *s;
+        long acc, cutoff;
+        int c;
+        int neg, any, cutlim;
+
+        /*
+         * Ensure that base is between 2 and 36 inclusive, or the special
+         * value of 0.
+         */
+        if (base != 0 && (base < 2 || base > 36)) {
+                if (endptr != 0)
+                        *endptr = (char *)nptr;
+                errno = EINVAL;
+                return 0;
+        }
+
+        /*
+         * Skip white space and pick up leading +/- sign if any.
+         * If base is 0, allow 0x for hex and 0 for octal, else
+         * assume decimal; if base is already 16, allow 0x.
+         */
+        s = nptr;
+        do {
+                c = (unsigned char) *s++;
+        } while (isspace(c));
+        if (c == '-') {
+                neg = 1;
+                c = *s++;
+        } else {
+                neg = 0;
+                if (c == '+')
+                        c = *s++;
+        }
+        if ((base == 0 || base == 16) &&
+            c == '0' && (*s == 'x' || *s == 'X')) {
+                c = s[1];
+                s += 2;
+                base = 16;
+        }
+        if (base == 0)
+                base = c == '0' ? 8 : 10;
+
+        /*
+         * Compute the cutoff value between legal numbers and illegal
+         * numbers.  That is the largest legal value, divided by the
+         * base.  An input number that is greater than this value, if
+         * followed by a legal input character, is too big.  One that
+         * is equal to this value may be valid or not; the limit
+         * between valid and invalid numbers is then based on the last
+         * digit.  For instance, if the range for longs is
+         * [-2147483648..2147483647] and the input base is 10,
+         * cutoff will be set to 214748364 and cutlim to either
+         * 7 (neg==0) or 8 (neg==1), meaning that if we have accumulated
+         * a value > 214748364, or equal but the next digit is > 7 (or 8),
+         * the number is too big, and we will return a range error.
+         *
+         * Set any if any `digits' consumed; make it negative to indicate
+         * overflow.
+         */
+        cutoff = neg ? LONG_MIN : LONG_MAX;
+        cutlim = cutoff % base;
+        cutoff /= base;
+        if (neg) {
+                if (cutlim > 0) {
+                        cutlim -= base;
+                        cutoff += 1;
+                }
+                cutlim = -cutlim;
+        }
+        for (acc = 0, any = 0;; c = (unsigned char) *s++) {
+                if (isdigit(c))
+                        c -= '0';
+                else if (isalpha(c))
+                        c -= isupper(c) ? 'A' - 10 : 'a' - 10;
+                else
+                        break;
+                if (c >= base)
+                        break;
+                if (any < 0)
+                        continue;
+                if (neg) {
+                        if (acc < cutoff || (acc == cutoff && c > cutlim)) {
+                                any = -1;
+                                acc = LONG_MIN;
+                                errno = ERANGE;
+                        } else {
+                                any = 1;
+                                acc *= base;
+                                acc -= c;
+                        }
+                } else {
+                        if (acc > cutoff || (acc == cutoff && c > cutlim)) {
+                                any = -1;
+                                acc = LONG_MAX;
+                                errno = ERANGE;
+                        } else {
+                                any = 1;
+                                acc *= base;
+                                acc += c;
+                        }
+                }
+        }
+        if (endptr != 0)
+                *endptr = (char *) (any ? s - 1 : nptr);
+        return (acc);
+}
diff --git a/src/lib/libc/stdlib/strtoll.c b/src/lib/libc/stdlib/strtoll.c
new file mode 100644
index 0000000000..4bcc5565be
--- /dev/null
+++ b/src/lib/libc/stdlib/strtoll.c
@@ -0,0 +1,144 @@
+/* $OpenBSD: strtoll.c,v 1.7 2013/03/28 18:09:38 martynas Exp $ */
+/*-
+ * Copyright (c) 1992 The Regents of the University of California.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <sys/types.h>
+
+#include <ctype.h>
+#include <errno.h>
+#include <limits.h>
+#include <stdlib.h>
+
+/*
+ * Convert a string to a long long.
+ *
+ * Ignores `locale' stuff.  Assumes that the upper and lower case
+ * alphabets and digits are each contiguous.
+ */
+long long
+strtoll(const char *nptr, char **endptr, int base)
+{
+        const char *s;
+        long long acc, cutoff;
+        int c;
+        int neg, any, cutlim;
+
+        /*
+         * Skip white space and pick up leading +/- sign if any.
+         * If base is 0, allow 0x for hex and 0 for octal, else
+         * assume decimal; if base is already 16, allow 0x.
+         */
+        s = nptr;
+        do {
+                c = (unsigned char) *s++;
+        } while (isspace(c));
+        if (c == '-') {
+                neg = 1;
+                c = *s++;
+        } else {
+                neg = 0;
+                if (c == '+')
+                        c = *s++;
+        }
+        if ((base == 0 || base == 16) &&
+            c == '0' && (*s == 'x' || *s == 'X')) {
+                c = s[1];
+                s += 2;
+                base = 16;
+        }
+        if (base == 0)
+                base = c == '0' ? 8 : 10;
+
+        /*
+         * Compute the cutoff value between legal numbers and illegal
+         * numbers.  That is the largest legal value, divided by the
+         * base.  An input number that is greater than this value, if
+         * followed by a legal input character, is too big.  One that
+         * is equal to this value may be valid or not; the limit
+         * between valid and invalid numbers is then based on the last
+         * digit.  For instance, if the range for long longs is
+         * [-9223372036854775808..9223372036854775807] and the input base
+         * is 10, cutoff will be set to 922337203685477580 and cutlim to
+         * either 7 (neg==0) or 8 (neg==1), meaning that if we have
+         * accumulated a value > 922337203685477580, or equal but the
+         * next digit is > 7 (or 8), the number is too big, and we will
+         * return a range error.
+         *
+         * Set any if any `digits' consumed; make it negative to indicate
+         * overflow.
+         */
+        cutoff = neg ? LLONG_MIN : LLONG_MAX;
+        cutlim = cutoff % base;
+        cutoff /= base;
+        if (neg) {
+                if (cutlim > 0) {
+                        cutlim -= base;
+                        cutoff += 1;
+                }
+                cutlim = -cutlim;
+        }
+        for (acc = 0, any = 0;; c = (unsigned char) *s++) {
+                if (isdigit(c))
+                        c -= '0';
+                else if (isalpha(c))
+                        c -= isupper(c) ? 'A' - 10 : 'a' - 10;
+                else
+                        break;
+                if (c >= base)
+                        break;
+                if (any < 0)
+                        continue;
+                if (neg) {
+                        if (acc < cutoff || (acc == cutoff && c > cutlim)) {
+                                any = -1;
+                                acc = LLONG_MIN;
+                                errno = ERANGE;
+                        } else {
+                                any = 1;
+                                acc *= base;
+                                acc -= c;
+                        }
+                } else {
+                        if (acc > cutoff || (acc == cutoff && c > cutlim)) {
+                                any = -1;
+                                acc = LLONG_MAX;
+                                errno = ERANGE;
+                        } else {
+                                any = 1;
+                                acc *= base;
+                                acc += c;
+                        }
+                }
+        }
+        if (endptr != 0)
+                *endptr = (char *) (any ? s - 1 : nptr);
+        return (acc);
+}
+
+__strong_alias(strtoq, strtoll);
diff --git a/src/lib/libc/stdlib/strtonum.3 b/src/lib/libc/stdlib/strtonum.3
new file mode 100644
index 0000000000..ed638cdbe2
--- /dev/null
+++ b/src/lib/libc/stdlib/strtonum.3
@@ -0,0 +1,152 @@
+.\" $OpenBSD: strtonum.3,v 1.17 2013/08/14 06:32:28 jmc Exp $
+.\"
+.\" Copyright (c) 2004 Ted Unangst
+.\"
+.\" Permission to use, copy, modify, and distribute this software for any
+.\" purpose with or without fee is hereby granted, provided that the above
+.\" copyright notice and this permission notice appear in all copies.
+.\"
+.\" THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+.\" WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+.\" MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+.\" ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+.\" WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+.\" ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+.\" OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+.\"
+.Dd $Mdocdate: August 14 2013 $
+.Dt STRTONUM 3
+.Os
+.Sh NAME
+.Nm strtonum
+.Nd reliably convert string value to an integer
+.Sh SYNOPSIS
+.In stdlib.h
+.Ft long long
+.Fo strtonum
+.Fa "const char *nptr"
+.Fa "long long minval"
+.Fa "long long maxval"
+.Fa "const char **errstr"
+.Fc
+.Sh DESCRIPTION
+The
+.Fn strtonum
+function converts the string in
+.Fa nptr
+to a
+.Li long long
+value.
+The
+.Fn strtonum
+function was designed to facilitate safe, robust programming
+and overcome the shortcomings of the
+.Xr atoi 3
+and
+.Xr strtol 3
+family of interfaces.
+.Pp
+The string may begin with an arbitrary amount of whitespace
+(as determined by
+.Xr isspace 3 )
+followed by a single optional
+.Ql +
+or
+.Ql -
+sign.
+.Pp
+The remainder of the string is converted to a
+.Li long long
+value according to base 10.
+.Pp
+The value obtained is then checked against the provided
+.Fa minval
+and
+.Fa maxval
+bounds.
+If
+.Fa errstr
+is non-null,
+.Fn strtonum
+stores an error string in
+.Fa *errstr
+indicating the failure.
+.Sh RETURN VALUES
+The
+.Fn strtonum
+function returns the result of the conversion,
+unless the value would exceed the provided bounds or is invalid.
+On error, 0 is returned,
+.Va errno
+is set, and
+.Fa errstr
+will point to an error message.
+.Fa *errstr
+will be set to
+.Dv NULL
+on success;
+this fact can be used to differentiate
+a successful return of 0 from an error.
+.Sh EXAMPLES
+Using
+.Fn strtonum
+correctly is meant to be simpler than the alternative functions.
+.Bd -literal -offset indent
+int iterations;
+const char *errstr;
+
+iterations = strtonum(optarg, 1, 64, &errstr);
+if (errstr)
+        errx(1, "number of iterations is %s: %s", errstr, optarg);
+.Ed
+.Pp
+The above example will guarantee that the value of iterations is between
+1 and 64 (inclusive).
+.Sh ERRORS
+.Bl -tag -width Er
+.It Bq Er ERANGE
+The given string was out of range.
+.It Bq Er EINVAL
+The given string did not consist solely of digit characters.
+.It Bq Er EINVAL
+.Ar minval
+was larger than
+.Ar maxval .
+.El
+.Pp
+If an error occurs,
+.Fa errstr
+will be set to one of the following strings:
+.Pp
+.Bl -tag -width "too largeXX" -compact
+.It Qq too large
+The result was larger than the provided maximum value.
+.It Qq too small
+The result was smaller than the provided minimum value.
+.It Qq invalid
+The string did not consist solely of digit characters.
+.El
+.Sh SEE ALSO
+.Xr atof 3 ,
+.Xr atoi 3 ,
+.Xr atol 3 ,
+.Xr atoll 3 ,
+.Xr sscanf 3 ,
+.Xr strtod 3 ,
+.Xr strtol 3 ,
+.Xr strtoul 3
+.Sh STANDARDS
+.Fn strtonum
+is an
+.Ox
+extension.
+The existing alternatives, such as
+.Xr atoi 3
+and
+.Xr strtol 3 ,
+are either impossible or difficult to use safely.
+.Sh HISTORY
+The
+.Fn strtonum
+function first appeared in
+.Ox 3.6 .
diff --git a/src/lib/libc/stdlib/strtonum.c b/src/lib/libc/stdlib/strtonum.c
new file mode 100644
index 0000000000..1aeee3467b
--- /dev/null
+++ b/src/lib/libc/stdlib/strtonum.c
@@ -0,0 +1,65 @@
+/*      $OpenBSD: strtonum.c,v 1.7 2013/04/17 18:40:58 tedu Exp $       */
+
+/*
+ * Copyright (c) 2004 Ted Unangst and Todd Miller
+ * All rights reserved.
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include <errno.h>
+#include <limits.h>
+#include <stdlib.h>
+
+#define INVALID         1
+#define TOOSMALL        2
+#define TOOLARGE        3
+
+long long
+strtonum(const char *numstr, long long minval, long long maxval,
+    const char **errstrp)
+{
+        long long ll = 0;
+        int error = 0;
+        char *ep;
+        struct errval {
+                const char *errstr;
+                int err;
+        } ev[4] = {
+                { NULL,         0 },
+                { "invalid",    EINVAL },
+                { "too small",  ERANGE },
+                { "too large",  ERANGE },
+        };
+
+        ev[0].err = errno;
+        errno = 0;
+        if (minval > maxval) {
+                error = INVALID;
+        } else {
+                ll = strtoll(numstr, &ep, 10);
+                if (numstr == ep || *ep != '\0')
+                        error = INVALID;
+                else if ((ll == LLONG_MIN && errno == ERANGE) || ll < minval)
+                        error = TOOSMALL;
+                else if ((ll == LLONG_MAX && errno == ERANGE) || ll > maxval)
+                        error = TOOLARGE;
+        }
+        if (errstrp != NULL)
+                *errstrp = ev[error].errstr;
+        errno = ev[error].err;
+        if (error)
+                ll = 0;
+
+        return (ll);
+}
diff --git a/src/lib/libc/stdlib/strtoul.3 b/src/lib/libc/stdlib/strtoul.3
new file mode 100644
index 0000000000..1353637d68
--- /dev/null
+++ b/src/lib/libc/stdlib/strtoul.3
@@ -0,0 +1,245 @@
+.\" Copyright (c) 1990, 1991 The Regents of the University of California.
+.\" All rights reserved.
+.\"
+.\" This code is derived from software contributed to Berkeley by
+.\" Chris Torek and the American National Standards Committee X3,
+.\" on Information Processing Systems.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\" 3. Neither the name of the University nor the names of its contributors
+.\"    may be used to endorse or promote products derived from this software
+.\"    without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.\"     $OpenBSD: strtoul.3,v 1.22 2013/08/14 06:32:28 jmc Exp $
+.\"
+.Dd $Mdocdate: August 14 2013 $
+.Dt STRTOUL 3
+.Os
+.Sh NAME
+.Nm strtoul ,
+.Nm strtoull ,
+.Nm strtoumax ,
+.Nm strtouq
+.Nd convert a string to an unsigned long, unsigned long long or uintmax_t integer
+.Sh SYNOPSIS
+.In limits.h
+.In stdlib.h
+.Ft unsigned long
+.Fn strtoul "const char *nptr" "char **endptr" "int base"
+.Ft unsigned long long
+.Fn strtoull "const char *nptr" "char **endptr" "int base"
+.In inttypes.h
+.Ft uintmax_t
+.Fn strtoumax "const char *nptr" "char **endptr" "int base"
+.In sys/types.h
+.In limits.h
+.In stdlib.h
+.Ft u_quad_t
+.Fn strtouq "const char *nptr" "char **endptr" "int base"
+.Sh DESCRIPTION
+The
+.Fn strtoul
+function converts the string in
+.Fa nptr
+to an
+.Li unsigned long
+value.
+The
+.Fn strtoull
+function converts the string in
+.Fa nptr
+to an
+.Li unsigned long long
+value.
+The
+.Fn strtoumax
+function converts the string in
+.Fa nptr
+to a
+.Li umaxint_t
+value.
+The
+.Fn strtouq
+function is a deprecated equivalent of
+.Fn strtoull
+and is provided for backwards compatibility with legacy programs.
+The conversion is done according to the given
+.Fa base ,
+which must be a number between 2 and 36 inclusive
+or the special value 0.
+If the string in
+.Fa nptr
+represents a negative number, it will be converted to its unsigned equivalent.
+This behavior is consistent with what happens when a signed integer type is
+cast to its unsigned counterpart.
+.Pp
+The string may begin with an arbitrary amount of whitespace
+(as determined by
+.Xr isspace 3 )
+followed by a single optional
+.Ql +
+or
+.Ql -
+sign.
+If
+.Fa base
+is zero or 16, the string may then include a
+.Ql 0x
+prefix, and the number will be read in base 16; otherwise, a zero
+.Fa base
+is taken as 10 (decimal) unless the next character is
+.Ql 0 ,
+in which case it is taken as 8 (octal).
+.Pp
+The remainder of the string is converted to an
+.Li unsigned long
+value in the obvious manner, stopping at the end of the string
+or at the first character that does not produce a valid digit
+in the given base.
+(In bases above 10, the letter
+.Ql A
+in either upper or lower case represents 10,
+.Ql B
+represents 11, and so forth, with
+.Ql Z
+representing 35.)
+.Pp
+If
+.Fa endptr
+is non-null,
+.Fn strtoul
+stores the address of the first invalid character in
+.Fa *endptr .
+If there were no digits at all, however,
+.Fn strtoul
+stores the original value of
+.Fa nptr
+in
+.Fa *endptr .
+(Thus, if
+.Fa *nptr
+is not
+.Ql \e0
+but
+.Fa **endptr
+is
+.Ql \e0
+on return, the entire string was valid.)
+.Sh RETURN VALUES
+The
+.Fn strtoul ,
+.Fn strtoull ,
+.Fn strtoumax
+and
+.Fn strtouq
+functions return either the result of the conversion or,
+if there was a leading minus sign,
+the negation of the result of the conversion,
+unless the original (non-negated) value would overflow.
+If overflow occurs,
+.Fn strtoul
+returns
+.Dv ULONG_MAX ,
+.Fn strtoull
+returns
+.Dv ULLONG_MAX ,
+.Fn strtoumax
+returns
+.Dv UINTMAX_MAX ,
+.Fn strtouq
+returns
+.Dv ULLONG_MAX
+and the global variable
+.Va errno
+is set to
+.Er ERANGE .
+If no conversion could be performed, 0 is returned;
+the global variable
+.Va errno
+is also set to
+.Er EINVAL ,
+though this is not portable across all platforms.
+.Pp
+There is no way to determine if
+.Fn strtoul
+has processed a negative number (and returned an unsigned value) short of
+examining the string in
+.Fa nptr
+directly.
+.Sh EXAMPLES
+Ensuring that a string is a valid number (i.e., in range and containing no
+trailing characters) requires clearing
+.Va errno
+beforehand explicitly since
+.Va errno
+is not changed on a successful call to
+.Fn strtoul ,
+and the return value of
+.Fn strtoul
+cannot be used unambiguously to signal an error:
+.Bd -literal -offset indent
+char *ep;
+unsigned long ulval;
+
+\&...
+
+errno = 0;
+ulval = strtoul(buf, &ep, 10);
+if (buf[0] == '\e0' || *ep != '\e0')
+        goto not_a_number;
+if (errno == ERANGE && ulval == ULONG_MAX)
+        goto out_of_range;
+.Ed
+.Pp
+This example will accept
+.Dq 12
+but not
+.Dq 12foo
+or
+.Dq 12\en .
+If trailing whitespace is acceptable, further checks must be done on
+.Va *ep ;
+alternately, use
+.Xr sscanf 3 .
+.Sh ERRORS
+.Bl -tag -width Er
+.It Bq Er ERANGE
+The given string was out of range; the value converted has been clamped.
+.El
+.Sh SEE ALSO
+.Xr sscanf 3 ,
+.Xr strtol 3
+.Sh STANDARDS
+The
+.Fn strtoul ,
+.Fn strtoull ,
+and
+.Fn strtoumax
+functions conform to
+.St -ansiC-99 .
+The
+.Fn strtouq
+function is a
+.Bx
+extension and is provided for backwards compatibility with legacy programs.
+.Sh BUGS
+Ignores the current locale.
diff --git a/src/lib/libc/stdlib/strtoul.c b/src/lib/libc/stdlib/strtoul.c
new file mode 100644
index 0000000000..a236365d2f
--- /dev/null
+++ b/src/lib/libc/stdlib/strtoul.c
@@ -0,0 +1,102 @@
+/*      $OpenBSD: strtoul.c,v 1.8 2013/04/17 17:40:35 tedu Exp $ */
+/*
+ * Copyright (c) 1990 Regents of the University of California.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <ctype.h>
+#include <errno.h>
+#include <limits.h>
+#include <stdlib.h>
+
+/*
+ * Convert a string to an unsigned long integer.
+ *
+ * Ignores `locale' stuff.  Assumes that the upper and lower case
+ * alphabets and digits are each contiguous.
+ */
+unsigned long
+strtoul(const char *nptr, char **endptr, int base)
+{
+        const char *s;
+        unsigned long acc, cutoff;
+        int c;
+        int neg, any, cutlim;
+
+        /*
+         * See strtol for comments as to the logic used.
+         */
+        s = nptr;
+        do {
+                c = (unsigned char) *s++;
+        } while (isspace(c));
+        if (c == '-') {
+                neg = 1;
+                c = *s++;
+        } else {
+                neg = 0;
+                if (c == '+')
+                        c = *s++;
+        }
+        if ((base == 0 || base == 16) &&
+            c == '0' && (*s == 'x' || *s == 'X')) {
+                c = s[1];
+                s += 2;
+                base = 16;
+        }
+        if (base == 0)
+                base = c == '0' ? 8 : 10;
+
+        cutoff = ULONG_MAX / (unsigned long)base;
+        cutlim = ULONG_MAX % (unsigned long)base;
+        for (acc = 0, any = 0;; c = (unsigned char) *s++) {
+                if (isdigit(c))
+                        c -= '0';
+                else if (isalpha(c))
+                        c -= isupper(c) ? 'A' - 10 : 'a' - 10;
+                else
+                        break;
+                if (c >= base)
+                        break;
+                if (any < 0)
+                        continue;
+                if (acc > cutoff || (acc == cutoff && c > cutlim)) {
+                        any = -1;
+                        acc = ULONG_MAX;
+                        errno = ERANGE;
+                } else {
+                        any = 1;
+                        acc *= (unsigned long)base;
+                        acc += c;
+                }
+        }
+        if (neg && any > 0)
+                acc = -acc;
+        if (endptr != 0)
+                *endptr = (char *) (any ? s - 1 : nptr);
+        return (acc);
+}
diff --git a/src/lib/libc/stdlib/strtoull.c b/src/lib/libc/stdlib/strtoull.c
new file mode 100644
index 0000000000..28f613a087
--- /dev/null
+++ b/src/lib/libc/stdlib/strtoull.c
@@ -0,0 +1,106 @@
+/*      $OpenBSD: strtoull.c,v 1.6 2013/03/28 18:09:38 martynas Exp $ */
+/*-
+ * Copyright (c) 1992 The Regents of the University of California.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <sys/types.h>
+
+#include <ctype.h>
+#include <errno.h>
+#include <limits.h>
+#include <stdlib.h>
+
+/*
+ * Convert a string to an unsigned long long.
+ *
+ * Ignores `locale' stuff.  Assumes that the upper and lower case
+ * alphabets and digits are each contiguous.
+ */
+unsigned long long
+strtoull(const char *nptr, char **endptr, int base)
+{
+        const char *s;
+        unsigned long long acc, cutoff;
+        int c;
+        int neg, any, cutlim;
+
+        /*
+         * See strtoq for comments as to the logic used.
+         */
+        s = nptr;
+        do {
+                c = (unsigned char) *s++;
+        } while (isspace(c));
+        if (c == '-') {
+                neg = 1;
+                c = *s++;
+        } else { 
+                neg = 0;
+                if (c == '+')
+                        c = *s++;
+        }
+        if ((base == 0 || base == 16) &&
+            c == '0' && (*s == 'x' || *s == 'X')) {
+                c = s[1];
+                s += 2;
+                base = 16;
+        }
+        if (base == 0)
+                base = c == '0' ? 8 : 10;
+
+        cutoff = ULLONG_MAX / (unsigned long long)base;
+        cutlim = ULLONG_MAX % (unsigned long long)base;
+        for (acc = 0, any = 0;; c = (unsigned char) *s++) {
+                if (isdigit(c))
+                        c -= '0';
+                else if (isalpha(c))
+                        c -= isupper(c) ? 'A' - 10 : 'a' - 10;
+                else
+                        break;
+                if (c >= base)
+                        break;
+                if (any < 0)
+                        continue;
+                if (acc > cutoff || (acc == cutoff && c > cutlim)) {
+                        any = -1;
+                        acc = ULLONG_MAX;
+                        errno = ERANGE;
+                } else {
+                        any = 1;
+                        acc *= (unsigned long long)base;
+                        acc += c;
+                }
+        }
+        if (neg && any > 0)
+                acc = -acc;
+        if (endptr != 0)
+                *endptr = (char *) (any ? s - 1 : nptr);
+        return (acc);
+}
+
+__strong_alias(strtouq, strtoull);
diff --git a/src/lib/libc/stdlib/strtoumax.c b/src/lib/libc/stdlib/strtoumax.c
new file mode 100644
index 0000000000..ce6e2c00f1
--- /dev/null
+++ b/src/lib/libc/stdlib/strtoumax.c
@@ -0,0 +1,102 @@
+/*      $OpenBSD: strtoumax.c,v 1.1 2006/01/13 17:58:09 millert Exp $   */
+
+/*-
+ * Copyright (c) 1992 The Regents of the University of California.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <ctype.h>
+#include <errno.h>
+#include <inttypes.h>
+
+/*
+ * Convert a string to a uintmax_t.
+ *
+ * Ignores `locale' stuff.  Assumes that the upper and lower case
+ * alphabets and digits are each contiguous.
+ */
+uintmax_t
+strtoumax(const char *nptr, char **endptr, int base)
+{
+        const char *s;
+        uintmax_t acc, cutoff;
+        int c;
+        int neg, any, cutlim;
+
+        /*
+         * See strtoq for comments as to the logic used.
+         */
+        s = nptr;
+        do {
+                c = (unsigned char) *s++;
+        } while (isspace(c));
+        if (c == '-') {
+                neg = 1;
+                c = *s++;
+        } else { 
+                neg = 0;
+                if (c == '+')
+                        c = *s++;
+        }
+        if ((base == 0 || base == 16) &&
+            c == '0' && (*s == 'x' || *s == 'X')) {
+                c = s[1];
+                s += 2;
+                base = 16;
+        }
+        if (base == 0)
+                base = c == '0' ? 8 : 10;
+
+        cutoff = UINTMAX_MAX / (uintmax_t)base;
+        cutlim = UINTMAX_MAX % (uintmax_t)base;
+        for (acc = 0, any = 0;; c = (unsigned char) *s++) {
+                if (isdigit(c))
+                        c -= '0';
+                else if (isalpha(c))
+                        c -= isupper(c) ? 'A' - 10 : 'a' - 10;
+                else
+                        break;
+                if (c >= base)
+                        break;
+                if (any < 0)
+                        continue;
+                if (acc > cutoff || (acc == cutoff && c > cutlim)) {
+                        any = -1;
+                        acc = UINTMAX_MAX;
+                        errno = ERANGE;
+                } else {
+                        any = 1;
+                        acc *= (uintmax_t)base;
+                        acc += c;
+                }
+        }
+        if (neg && any > 0)
+                acc = -acc;
+        if (endptr != 0)
+                *endptr = (char *) (any ? s - 1 : nptr);
+        return (acc);
+}
diff --git a/src/lib/libc/stdlib/system.3 b/src/lib/libc/stdlib/system.3
new file mode 100644
index 0000000000..878bb0a9d2
--- /dev/null
+++ b/src/lib/libc/stdlib/system.3
@@ -0,0 +1,109 @@
+.\" Copyright (c) 1990, 1991 The Regents of the University of California.
+.\" All rights reserved.
+.\"
+.\" This code is derived from software contributed to Berkeley by
+.\" the American National Standards Committee X3, on Information
+.\" Processing Systems.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\" 3. Neither the name of the University nor the names of its contributors
+.\"    may be used to endorse or promote products derived from this software
+.\"    without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.\"     $OpenBSD: system.3,v 1.13 2013/07/18 10:14:50 schwarze Exp $
+.\"
+.Dd $Mdocdate: July 18 2013 $
+.Dt SYSTEM 3
+.Os
+.Sh NAME
+.Nm system
+.Nd pass a command to the shell
+.Sh SYNOPSIS
+.In stdlib.h
+.Ft int
+.Fn system "const char *string"
+.Sh DESCRIPTION
+The
+.Fn system
+function hands the argument
+.Fa string
+to the command interpreter
+.Xr sh 1 .
+The calling process waits for the shell to finish executing the command,
+ignoring
+.Dv SIGINT
+and
+.Dv SIGQUIT ,
+and blocking
+.Dv SIGCHLD .
+.Pp
+If
+.Fa string
+is
+.Dv NULL ,
+.Fn system
+will return non-zero.
+Otherwise,
+.Fn system
+returns the termination status of the shell in the format specified by
+.Xr waitpid 2 .
+.Pp
+Note that fork handlers established using
+.Xr pthread_atfork 3
+are not called when a multithreaded program calls
+.Fn system .
+.Sh RETURN VALUES
+If a child process cannot be created, or the termination status of
+the shell cannot be obtained,
+.Fn system
+returns \-1 and sets
+.Va errno
+to indicate the error.
+If execution of the shell fails,
+.Fn system
+returns the termination status for a program that terminates with a call of
+.Fn exit 127 .
+.Sh SEE ALSO
+.Xr sh 1 ,
+.Xr execve 2 ,
+.Xr waitpid 2 ,
+.Xr popen 3
+.Sh STANDARDS
+The
+.Fn system
+function conforms to
+.St -ansiC
+and
+.St -p1003.2-92 .
+.Sh HISTORY
+The
+.Fn system
+function first appeared in
+.At v6 .
+.Sh CAVEATS
+Never supply the
+.Fn system
+function with a command containing any part of an unsanitized user-supplied
+string.
+Shell meta-characters present will be honored by the
+.Xr sh 1
+command interpreter.
diff --git a/src/lib/libc/stdlib/system.c b/src/lib/libc/stdlib/system.c
new file mode 100644
index 0000000000..14ddcae8d3
--- /dev/null
+++ b/src/lib/libc/stdlib/system.c
@@ -0,0 +1,74 @@
+/*      $OpenBSD: system.c,v 1.8 2005/08/08 08:05:37 espie Exp $ */
+/*
+ * Copyright (c) 1988 The Regents of the University of California.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <sys/types.h>
+#include <sys/wait.h>
+#include <signal.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <paths.h>
+
+extern char **environ;
+
+int
+system(const char *command)
+{
+        pid_t pid;
+        sig_t intsave, quitsave;
+        sigset_t mask, omask;
+        int pstat;
+        char *argp[] = {"sh", "-c", NULL, NULL};
+
+        if (!command)           /* just checking... */
+                return(1);
+
+        argp[2] = (char *)command;
+
+        sigemptyset(&mask);
+        sigaddset(&mask, SIGCHLD);
+        sigprocmask(SIG_BLOCK, &mask, &omask);
+        switch (pid = vfork()) {
+        case -1:                        /* error */
+                sigprocmask(SIG_SETMASK, &omask, NULL);
+                return(-1);
+        case 0:                         /* child */
+                sigprocmask(SIG_SETMASK, &omask, NULL);
+                execve(_PATH_BSHELL, argp, environ);
+                _exit(127);
+        }
+
+        intsave = signal(SIGINT, SIG_IGN);
+        quitsave = signal(SIGQUIT, SIG_IGN);
+        pid = waitpid(pid, (int *)&pstat, 0);
+        sigprocmask(SIG_SETMASK, &omask, NULL);
+        (void)signal(SIGINT, intsave);
+        (void)signal(SIGQUIT, quitsave);
+        return (pid == -1 ? -1 : pstat);
+}
diff --git a/src/lib/libc/stdlib/tfind.c b/src/lib/libc/stdlib/tfind.c
new file mode 100644
index 0000000000..0d1d5196d8
--- /dev/null
+++ b/src/lib/libc/stdlib/tfind.c
@@ -0,0 +1,41 @@
+/*      $OpenBSD: tfind.c,v 1.6 2014/03/16 18:38:30 guenther Exp $      */
+
+/*
+ * Tree search generalized from Knuth (6.2.2) Algorithm T just like
+ * the AT&T man page says.
+ *
+ * The node_t structure is for internal use only
+ *
+ * Written by reading the System V Interface Definition, not the code.
+ *
+ * Totally public domain.
+ */
+/*LINTLIBRARY*/
+#include <search.h>
+
+typedef struct node_t
+{
+    char          *key;
+    struct node_t *llink, *rlink;
+} node;
+
+/* find a node, or return 0 */
+void *
+tfind(const void *vkey, void * const *vrootp,
+    int (*compar)(const void *, const void *))
+{
+    char *key = (char *)vkey;
+    node **rootp = (node **)vrootp;
+
+    if (rootp == (struct node_t **)0)
+        return ((struct node_t *)0);
+    while (*rootp != (struct node_t *)0) {      /* T1: */
+        int r;
+        if ((r = (*compar)(key, (*rootp)->key)) == 0)   /* T2: */
+            return (*rootp);            /* key found */
+        rootp = (r < 0) ?
+            &(*rootp)->llink :          /* T3: follow left branch */
+            &(*rootp)->rlink;           /* T4: follow right branch */
+    }
+    return (node *)0;
+}
diff --git a/src/lib/libc/stdlib/tsearch.3 b/src/lib/libc/stdlib/tsearch.3
new file mode 100644
index 0000000000..46d0bba10c
--- /dev/null
+++ b/src/lib/libc/stdlib/tsearch.3
@@ -0,0 +1,130 @@
+.\" $OpenBSD: tsearch.3,v 1.19 2013/06/05 03:39:23 tedu Exp $
+.\"
+.\" Copyright (c) 1997 Todd C. Miller <Todd.Miller@courtesan.com>
+.\"
+.\" Permission to use, copy, modify, and distribute this software for any
+.\" purpose with or without fee is hereby granted, provided that the above
+.\" copyright notice and this permission notice appear in all copies.
+.\"
+.\" THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+.\" WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+.\" MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+.\" ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+.\" WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+.\" ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+.\" OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+.\"
+.Dd $Mdocdate: June 5 2013 $
+.Dt TSEARCH 3
+.Os
+.Sh NAME
+.Nm tsearch ,
+.Nm tfind ,
+.Nm tdelete ,
+.Nm twalk
+.Nd manipulate binary search trees
+.Sh SYNOPSIS
+.In search.h
+.Ft void *
+.Fn tdelete "const void *key" "void **rootp" "int (*compar)(const void *, const void *)"
+.Ft void *
+.Fn tfind "const void *key" "void * const *rootp" "int (*compar)(const void *, const void *)"
+.Ft void *
+.Fn tsearch "const void *key" "void **rootp" "int (*compar)(const void *, const void *)"
+.Ft void
+.Fn twalk "const void *root" "void (*action)(const void *, VISIT, int)"
+.Sh DESCRIPTION
+The
+.Fn tdelete ,
+.Fn tfind ,
+.Fn tsearch ,
+and
+.Fn twalk
+functions manage binary search trees based on algorithms T and D
+from Knuth (6.2.2).
+The comparison function passed in by
+the user has the same style of return values as
+.Xr strcmp 3 .
+.Pp
+.Fn tfind
+searches for the datum matched by the argument
+.Fa key
+in the binary tree rooted at
+.Fa rootp ,
+returning a pointer to the datum if it is found and
+.Dv NULL
+if it is not.
+.Pp
+.Fn tsearch
+is identical to
+.Fn tfind
+except that if no match is found,
+.Fa key
+is inserted into the tree and a pointer to it is returned.
+If
+.Fa rootp
+points to a null value a new binary search tree is created.
+.Pp
+.Fn tdelete
+deletes a node from the specified binary search tree and returns
+a pointer to the parent of the node to be deleted.
+If the node to be deleted is the root of the binary search tree,
+.Fa rootp
+will be adjusted and an unspecified non-null pointer will be returned.
+It takes the same arguments as
+.Fn tfind
+and
+.Fn tsearch .
+.Pp
+.Fn twalk
+walks the binary search tree rooted in
+.Fa root
+and calls the function
+.Fa action
+on each node.
+.Fa action
+is called with three arguments: a pointer to the current node,
+a value from the enum
+.Sy "typedef enum { preorder, postorder, endorder, leaf } VISIT;"
+specifying the traversal type, and a node level (where level
+zero is the root of the tree).
+.Sh RETURN VALUES
+The
+.Fn tsearch
+function returns
+.Dv NULL
+if allocation of a new node fails (usually
+due to a lack of free memory).
+.Pp
+.Fn tdelete
+returns a pointer to the parent of the deleted node or an unspecified
+non-null pointer if the root node is deleted.
+.Pp
+.Fn tfind ,
+.Fn tsearch ,
+and
+.Fn tdelete
+return
+.Dv NULL
+if
+.Fa rootp
+is
+.Dv NULL
+or the datum cannot be found.
+.Pp
+The
+.Fn twalk
+function returns no value.
+.Sh SEE ALSO
+.Xr bsearch 3 ,
+.Xr lsearch 3
+.Sh STANDARDS
+These functions conform to
+.St -p1003.1-2008 .
+.Sh CAVEATS
+The value returned when deleting the root node was unspecified before
+the
+.St -p1003.1-2008
+standard, so users of the
+.Fn tdelete
+function should be wary of relying on a specific behaviour.
diff --git a/src/lib/libc/stdlib/tsearch.c b/src/lib/libc/stdlib/tsearch.c
new file mode 100644
index 0000000000..a141085d2b
--- /dev/null
+++ b/src/lib/libc/stdlib/tsearch.c
@@ -0,0 +1,119 @@
+/*      $OpenBSD: tsearch.c,v 1.8 2014/03/16 18:38:30 guenther Exp $    */
+
+/*
+ * Tree search generalized from Knuth (6.2.2) Algorithm T just like
+ * the AT&T man page says.
+ *
+ * The node_t structure is for internal use only
+ *
+ * Written by reading the System V Interface Definition, not the code.
+ *
+ * Totally public domain.
+ */
+/*LINTLIBRARY*/
+
+#include <search.h>
+#include <stdlib.h>
+
+typedef struct node_t {
+    char          *key;
+    struct node_t *left, *right;
+} node;
+
+/* find or insert datum into search tree */
+void *
+tsearch(const void *vkey, void **vrootp,
+    int (*compar)(const void *, const void *))
+{
+    node *q;
+    char *key = (char *)vkey;
+    node **rootp = (node **)vrootp;
+
+    if (rootp == (struct node_t **)0)
+        return ((void *)0);
+    while (*rootp != (struct node_t *)0) {      /* Knuth's T1: */
+        int r;
+
+        if ((r = (*compar)(key, (*rootp)->key)) == 0)   /* T2: */
+            return ((void *)*rootp);            /* we found it! */
+        rootp = (r < 0) ?
+            &(*rootp)->left :           /* T3: follow left branch */
+            &(*rootp)->right;           /* T4: follow right branch */
+    }
+    q = (node *) malloc(sizeof(node));  /* T5: key not found */
+    if (q != (struct node_t *)0) {      /* make new node */
+        *rootp = q;                     /* link new node to old */
+        q->key = key;                   /* initialize new node */
+        q->left = q->right = (struct node_t *)0;
+    }
+    return ((void *)q);
+}
+
+/* delete node with given key */
+void *
+tdelete(const void *vkey, void **vrootp,
+    int (*compar)(const void *, const void *))
+{
+    node **rootp = (node **)vrootp;
+    char *key = (char *)vkey;
+    node *p = (node *)1;
+    node *q;
+    node *r;
+    int cmp;
+
+    if (rootp == (struct node_t **)0 || *rootp == (struct node_t *)0)
+        return ((struct node_t *)0);
+    while ((cmp = (*compar)(key, (*rootp)->key)) != 0) {
+        p = *rootp;
+        rootp = (cmp < 0) ?
+            &(*rootp)->left :           /* follow left branch */
+            &(*rootp)->right;           /* follow right branch */
+        if (*rootp == (struct node_t *)0)
+            return ((void *)0);         /* key not found */
+    }
+    r = (*rootp)->right;                        /* D1: */
+    if ((q = (*rootp)->left) == (struct node_t *)0)     /* Left (struct node_t *)0? */
+        q = r;
+    else if (r != (struct node_t *)0) {         /* Right link is null? */
+        if (r->left == (struct node_t *)0) {    /* D2: Find successor */
+            r->left = q;
+            q = r;
+        } else {                        /* D3: Find (struct node_t *)0 link */
+            for (q = r->left; q->left != (struct node_t *)0; q = r->left)
+                r = q;
+            r->left = q->right;
+            q->left = (*rootp)->left;
+            q->right = (*rootp)->right;
+        }
+    }
+    free((struct node_t *) *rootp);     /* D4: Free node */
+    *rootp = q;                         /* link parent to new node */
+    return(p);
+}
+
+/* Walk the nodes of a tree */
+static void
+trecurse(node *root, void (*action)(const void *, VISIT, int), int level)
+{
+    if (root->left == (struct node_t *)0 && root->right == (struct node_t *)0)
+        (*action)(root, leaf, level);
+    else {
+        (*action)(root, preorder, level);
+        if (root->left != (struct node_t *)0)
+            trecurse(root->left, action, level + 1);
+        (*action)(root, postorder, level);
+        if (root->right != (struct node_t *)0)
+            trecurse(root->right, action, level + 1);
+        (*action)(root, endorder, level);
+    }
+}
+
+/* Walk the nodes of a tree */
+void
+twalk(const void *vroot, void (*action)(const void *, VISIT, int))
+{
+    node *root = (node *)vroot;
+
+    if (root != (node *)0 && action != (void (*)(const void *, VISIT, int))0)
+        trecurse(root, action, 0);
+}
diff --git a/src/lib/libc/string/Makefile.inc b/src/lib/libc/string/Makefile.inc
new file mode 100644
index 0000000000..1f6d756182
--- /dev/null
+++ b/src/lib/libc/string/Makefile.inc
@@ -0,0 +1,175 @@
+#       $OpenBSD: Makefile.inc,v 1.34 2014/03/23 23:16:48 tedu Exp $
+
+# string sources
+.PATH: ${LIBCSRCDIR}/arch/${MACHINE_CPU}/string ${LIBCSRCDIR}/string
+
+SRCS+=  explicit_bzero.c memccpy.c memmem.c memrchr.c stpcpy.c stpncpy.c \
+        strcasecmp.c strcasestr.c strcoll.c strdup.c \
+        strerror.c strerror_r.c strlcat.c strmode.c strndup.c strnlen.c \
+        strsignal.c strtok.c strxfrm.c \
+        wcscat.c wcschr.c wcscmp.c wcscpy.c wcscspn.c wcslcat.c wcslcpy.c \
+        wcslen.c wcsncat.c wcsncmp.c wcsncpy.c wcspbrk.c wcsrchr.c wcsspn.c \
+        wcsstr.c wcstok.c wcswcs.c wcswidth.c wmemchr.c wmemcmp.c wmemcpy.c \
+        wmemmove.c wmemset.c wcsdup.c \
+        timingsafe_bcmp.c wcscasecmp.c
+
+# machine-dependent net sources
+# m-d Makefile.inc must include sources for:
+#       bcmp() bcopy() bzero() ffs() index() memchr() memcmp() memset()
+#       rindex() strcat() strcmp() strcpy() strcspn() strlen() strlcpy()
+#       strncat() strncmp() strncpy() strpbrk() strsep()
+#       strspn() strstr() swav()
+# m-d Makefile.inc may include sources for:
+#       memcpy() memmove() strchr() strrchr()
+
+.include "${LIBCSRCDIR}/arch/${MACHINE_CPU}/string/Makefile.inc"
+
+# if no machine specific memmove(3), build one out of bcopy(3).
+.if empty(SRCS:Mmemmove.S)
+OBJS+=  memmove.o
+memmove.o: bcopy.c
+        ${CC} -DMEMMOVE ${CFLAGS} ${CPPFLAGS} -c ${.ALLSRC} -o ${.TARGET}
+        @${LD} -o ${.TARGET}.tmp -x -r ${.TARGET}
+        @mv ${.TARGET}.tmp ${.TARGET}
+
+memmove.go: bcopy.c
+        ${CC} -g -DMEMMOVE ${CFLAGS} ${CPPFLAGS} -c ${.ALLSRC} -o ${.TARGET}
+        @${LD} -o ${.TARGET}.tmp -x -r ${.TARGET}
+        @mv ${.TARGET}.tmp ${.TARGET}
+
+memmove.po: bcopy.c
+        ${CC} -DMEMMOVE ${CFLAGS} ${CPPFLAGS} -c -p ${.ALLSRC} -o ${.TARGET}
+        @${LD} -o ${.TARGET}.tmp -X -r ${.TARGET}
+        @mv ${.TARGET}.tmp ${.TARGET}
+
+memmove.so: bcopy.c
+        ${CC} ${PICFLAG} -DPIC -DMEMMOVE ${CFLAGS} ${CPPFLAGS} -c ${.ALLSRC} \
+                -o ${.TARGET}
+
+memmove.do: bcopy.c
+        ${CC} -DMEMMOVE ${CFLAGS} ${CPPFLAGS} ${DIST_CFLAGS} -c ${.ALLSRC} \
+            -o ${.TARGET}
+        @${LD} -o ${.TARGET}.tmp -x -r ${.TARGET}
+        @mv ${.TARGET}.tmp ${.TARGET}
+.endif
+
+# if no machine specific memcpy(3), build one out of bcopy(3).
+# if there is a machine specific memmove(3), we'll assume it aliases
+# memcpy(3).
+.if empty(SRCS:Mmemcpy.S)
+.if empty(SRCS:Mmemmove.S)
+OBJS+=  memcpy.o
+memcpy.o: bcopy.c
+        ${CC} -DMEMCOPY ${CFLAGS} ${CPPFLAGS} -c ${.ALLSRC} -o ${.TARGET}
+        @${LD} -o ${.TARGET}.tmp -x -r ${.TARGET}
+        @mv ${.TARGET}.tmp ${.TARGET}
+
+memcpy.go: bcopy.c
+        ${CC} -g -DMEMCOPY ${CFLAGS} ${CPPFLAGS} -c ${.ALLSRC} -o ${.TARGET}
+        @${LD} -o ${.TARGET}.tmp -x -r ${.TARGET}
+        @mv ${.TARGET}.tmp ${.TARGET}
+
+memcpy.po: bcopy.c
+        ${CC} -DMEMCOPY ${CFLAGS} ${CPPFLAGS} -c -p ${.ALLSRC} -o ${.TARGET}
+        @${LD} -o ${.TARGET}.tmp -X -r ${.TARGET}
+        @mv ${.TARGET}.tmp ${.TARGET}
+
+memcpy.so: bcopy.c
+        ${CC} ${PICFLAG} -DPIC -DMEMCOPY ${CFLAGS} ${CPPFLAGS} -c ${.ALLSRC} \
+                -o ${.TARGET}
+
+memcpy.do: bcopy.c
+        ${CC} -DMEMCOPY ${CFLAGS} ${CPPFLAGS} ${DIST_CFLAGS} -c ${.ALLSRC} \
+            -o ${.TARGET}
+        @${LD} -o ${.TARGET}.tmp -x -r ${.TARGET}
+        @mv ${.TARGET}.tmp ${.TARGET}
+.endif
+.endif
+
+# if no machine specific strchr(3), build one out of index(3).
+.if empty(SRCS:Mstrchr.S)
+OBJS+=  strchr.o
+strchr.o: index.c
+        ${CC} -DSTRCHR ${CFLAGS} ${CPPFLAGS} -c ${.ALLSRC} -o ${.TARGET}
+        @${LD} -o ${.TARGET}.tmp -x -r ${.TARGET}
+        @mv ${.TARGET}.tmp ${.TARGET}
+
+strchr.go: index.c
+        ${CC} -g -DSTRCHR ${CFLAGS} ${CPPFLAGS} -c ${.ALLSRC} -o ${.TARGET}
+        @${LD} -o ${.TARGET}.tmp -x -r ${.TARGET}
+        @mv ${.TARGET}.tmp ${.TARGET}
+
+strchr.po: index.c
+        ${CC} -DSTRCHR ${CFLAGS} ${CPPFLAGS} -c -p ${.ALLSRC} -o ${.TARGET}
+        @${LD} -o ${.TARGET}.tmp -X -r ${.TARGET}
+        @mv ${.TARGET}.tmp ${.TARGET}
+
+strchr.so: index.c
+        ${CC} ${PICFLAG} -DPIC -DSTRCHR ${CFLAGS} ${CPPFLAGS} -c ${.ALLSRC} \
+            -o ${.TARGET}
+
+strchr.do: index.c
+        ${CC} -DSTRCHR ${CFLAGS} ${CPPFLAGS} ${DIST_CFLAGS} -c ${.ALLSRC} \
+            -o ${.TARGET}
+        @${LD} -o ${.TARGET}.tmp -x -r ${.TARGET}
+        @mv ${.TARGET}.tmp ${.TARGET}
+.endif
+
+# if no machine specific strrchr(3), build one out of rindex(3).
+.if empty(SRCS:Mstrrchr.S)
+OBJS+=  strrchr.o
+strrchr.o: rindex.c
+        ${CC} -DSTRRCHR ${CFLAGS} ${CPPFLAGS} -c ${.ALLSRC} -o ${.TARGET}
+        @${LD} -o ${.TARGET}.tmp -x -r ${.TARGET}
+        @mv ${.TARGET}.tmp ${.TARGET}
+
+strrchr.go: rindex.c
+        ${CC} -g -DSTRRCHR ${CFLAGS} ${CPPFLAGS} -c ${.ALLSRC} -o ${.TARGET}
+        @${LD} -o ${.TARGET}.tmp -x -r ${.TARGET}
+        @mv ${.TARGET}.tmp ${.TARGET}
+
+strrchr.po: rindex.c
+        ${CC} -DSTRRCHR ${CFLAGS} ${CPPFLAGS} -c -p ${.ALLSRC} -o ${.TARGET}
+        @${LD} -o ${.TARGET}.tmp -X -r ${.TARGET}
+        @mv ${.TARGET}.tmp ${.TARGET}
+
+strrchr.so: rindex.c
+        ${CC} ${PICFLAG} -DPIC -DSTRRCHR ${CFLAGS} ${CPPFLAGS} -c ${.ALLSRC} \
+            -o ${.TARGET}
+
+strrchr.do: rindex.c
+        ${CC} -DSTRRCHR ${CFLAGS} ${CPPFLAGS} ${DIST_CFLAGS} -c ${.ALLSRC} \
+            -o ${.TARGET}
+        @${LD} -o ${.TARGET}.tmp -x -r ${.TARGET}
+        @mv ${.TARGET}.tmp ${.TARGET}
+.endif
+
+MAN+=   bcmp.3 bcopy.3 bstring.3 bzero.3 ffs.3 memccpy.3 memchr.3 \
+        memcmp.3 memcpy.3 memmem.3 memmove.3 memset.3 stpcpy.3 strcasecmp.3 \
+        strcat.3 strchr.3 strcmp.3 strcoll.3 strcpy.3 strcspn.3 strdup.3 \
+        strerror.3 string.3 strlen.3 strmode.3 strncat.3 strncpy.3 strpbrk.3 \
+        strrchr.3 strsep.3 strsignal.3 strspn.3 strstr.3 strtok.3 strxfrm.3 \
+        swab.3 strlcpy.3 wcscasecmp.3 wcscat.3 wcschr.3 wcscmp.3 wcscpy.3 \
+        wcscspn.3 wcsdup.3 wcslcpy.3 wcslen.3 wcspbrk.3 wcsrchr.3 wcsspn.3 \
+        wcsstr.3 wcstok.3 wcswidth.3 wmemchr.3 wmemcmp.3 wmemcpy.3 wmemmove.3 \
+        wmemset.3
+
+MLINKS+=bzero.3 explicit_bzero.3
+MLINKS+=memchr.3 memrchr.3
+MLINKS+=stpcpy.3 stpncpy.3
+MLINKS+=strchr.3 index.3
+MLINKS+=strrchr.3 rindex.3
+MLINKS+=strcasecmp.3 strncasecmp.3
+MLINKS+=strcmp.3 strncmp.3
+MLINKS+=strdup.3 strndup.3
+MLINKS+=strlcpy.3 strlcat.3
+MLINKS+=strlen.3 strnlen.3
+MLINKS+=strstr.3 strcasestr.3
+MLINKS+=strtok.3 strtok_r.3
+MLINKS+=strerror.3 strerror_r.3
+MLINKS+=wcscasecmp.3 wcsncasecmp.3
+MLINKS+=wcscat.3 wcsncat.3
+MLINKS+=wcscmp.3 wcsncmp.3
+MLINKS+=wcscpy.3 wcsncpy.3
+MLINKS+=wcslcpy.3 wcslcat.3
+MLINKS+=bcmp.3 timingsafe_bcmp.3
diff --git a/src/lib/libc/string/bcmp.3 b/src/lib/libc/string/bcmp.3
new file mode 100644
index 0000000000..52584b4b83
--- /dev/null
+++ b/src/lib/libc/string/bcmp.3
@@ -0,0 +1,88 @@
+.\" Copyright (c) 1990, 1991 The Regents of the University of California.
+.\" All rights reserved.
+.\"
+.\" This code is derived from software contributed to Berkeley by
+.\" Chris Torek.
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\" 3. Neither the name of the University nor the names of its contributors
+.\"    may be used to endorse or promote products derived from this software
+.\"    without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.\"     $OpenBSD: bcmp.3,v 1.10 2013/06/05 03:39:23 tedu Exp $
+.\"
+.Dd $Mdocdate: June 5 2013 $
+.Dt BCMP 3
+.Os
+.Sh NAME
+.Nm bcmp ,
+.Nm timingsafe_bcmp
+.Nd compare byte string
+.Sh SYNOPSIS
+.In string.h
+.Ft int
+.Fn bcmp "const void *b1" "const void *b2" "size_t len"
+.Ft int
+.Fn timingsafe_bcmp "const void *b1" "const void *b2" "size_t len"
+.Sh DESCRIPTION
+The
+.Fn bcmp
+function compares byte string
+.Fa b1
+against byte string
+.Fa b2 ,
+returning zero if they are identical, non-zero otherwise.
+Both strings are assumed to be
+.Fa len
+bytes long.
+Zero-length strings are always identical.
+.Pp
+The strings may overlap.
+.Pp
+The
+.Fn timingsafe_bcmp
+function has the same semantics as
+.Fn bcmp ,
+but its running time is independent of the contents of
+.Fa b1
+and
+.Fa b2 ,
+making it safe to use for comparing secret values such as cryptographic MACs.
+In contrast,
+.Fn bcmp
+returns after finding the first differing byte,
+making it vulnerable to timing attacks.
+.Sh SEE ALSO
+.Xr memcmp 3 ,
+.Xr strcasecmp 3 ,
+.Xr strcmp 3 ,
+.Xr strcoll 3 ,
+.Xr strxfrm 3
+.Sh HISTORY
+The
+.Fn bcmp
+function first appeared in
+.Bx 4.2 .
+.Pp
+The
+.Fn timingsafe_bcmp
+function first appeared in
+.Ox 4.9 .
diff --git a/src/lib/libc/string/bcmp.c b/src/lib/libc/string/bcmp.c
new file mode 100644
index 0000000000..fd5c93121e
--- /dev/null
+++ b/src/lib/libc/string/bcmp.c
@@ -0,0 +1,55 @@
+/*      $OpenBSD: bcmp.c,v 1.9 2008/03/19 03:00:23 ray Exp $    */
+
+/*
+ * Copyright (c) 1987 Regents of the University of California.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#if !defined(_KERNEL) && !defined(_STANDALONE)
+#include <string.h>
+#else
+#include <lib/libkern/libkern.h>
+#endif
+
+/*
+ * bcmp -- vax cmpc3 instruction
+ */
+int
+bcmp(const void *b1, const void *b2, size_t length)
+{
+        char *p1, *p2;
+
+        if (length == 0)
+                return (0);
+        p1 = (char *)b1;
+        p2 = (char *)b2;
+        do
+                if (*p1++ != *p2++)
+                        return (1);
+        while (--length);
+        return (0);
+}
diff --git a/src/lib/libc/string/bcopy.3 b/src/lib/libc/string/bcopy.3
new file mode 100644
index 0000000000..94a8231fcb
--- /dev/null
+++ b/src/lib/libc/string/bcopy.3
@@ -0,0 +1,67 @@
+.\" Copyright (c) 1990, 1991 The Regents of the University of California.
+.\" All rights reserved.
+.\"
+.\" This code is derived from software contributed to Berkeley by
+.\" Chris Torek.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\" 3. Neither the name of the University nor the names of its contributors
+.\"    may be used to endorse or promote products derived from this software
+.\"    without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.\"     $OpenBSD: bcopy.3,v 1.11 2013/06/05 03:39:23 tedu Exp $
+.\"
+.Dd $Mdocdate: June 5 2013 $
+.Dt BCOPY 3
+.Os
+.Sh NAME
+.Nm bcopy
+.Nd copy bytes
+.Sh SYNOPSIS
+.In string.h
+.Ft void
+.Fn bcopy "const void *src" "void *dst" "size_t len"
+.Sh DESCRIPTION
+The
+.Fn bcopy
+function copies
+.Fa len
+bytes from buffer
+.Fa src
+to buffer
+.Fa dst .
+The two buffers may overlap.
+If
+.Fa len
+is zero, no bytes are copied.
+.Sh SEE ALSO
+.Xr memccpy 3 ,
+.Xr memcpy 3 ,
+.Xr memmove 3 ,
+.Xr strcpy 3 ,
+.Xr strlcpy 3 ,
+.Xr strncpy 3
+.Sh HISTORY
+The
+.Fn bcopy
+function first appeared in
+.Bx 4.2 .
diff --git a/src/lib/libc/string/bcopy.c b/src/lib/libc/string/bcopy.c
new file mode 100644
index 0000000000..4308c6484a
--- /dev/null
+++ b/src/lib/libc/string/bcopy.c
@@ -0,0 +1,128 @@
+/*      $OpenBSD: bcopy.c,v 1.5 2005/08/08 08:05:37 espie Exp $ */
+/*-
+ * Copyright (c) 1990 The Regents of the University of California.
+ * All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Chris Torek.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <string.h>
+
+/*
+ * sizeof(word) MUST BE A POWER OF TWO
+ * SO THAT wmask BELOW IS ALL ONES
+ */
+typedef long word;              /* "word" used for optimal copy speed */
+
+#define wsize   sizeof(word)
+#define wmask   (wsize - 1)
+
+/*
+ * Copy a block of memory, handling overlap.
+ * This is the routine that actually implements
+ * (the portable versions of) bcopy, memcpy, and memmove.
+ */
+#ifdef MEMCOPY
+void *
+memcpy(void *dst0, const void *src0, size_t length)
+#else
+#ifdef MEMMOVE
+void *
+memmove(void *dst0, const void *src0, size_t length)
+#else
+void
+bcopy(const void *src0, void *dst0, size_t length)
+#endif
+#endif
+{
+        char *dst = dst0;
+        const char *src = src0;
+        size_t t;
+
+        if (length == 0 || dst == src)          /* nothing to do */
+                goto done;
+
+        /*
+         * Macros: loop-t-times; and loop-t-times, t>0
+         */
+#define TLOOP(s) if (t) TLOOP1(s)
+#define TLOOP1(s) do { s; } while (--t)
+
+        if ((unsigned long)dst < (unsigned long)src) {
+                /*
+                 * Copy forward.
+                 */
+                t = (long)src;  /* only need low bits */
+                if ((t | (long)dst) & wmask) {
+                        /*
+                         * Try to align operands.  This cannot be done
+                         * unless the low bits match.
+                         */
+                        if ((t ^ (long)dst) & wmask || length < wsize)
+                                t = length;
+                        else
+                                t = wsize - (t & wmask);
+                        length -= t;
+                        TLOOP1(*dst++ = *src++);
+                }
+                /*
+                 * Copy whole words, then mop up any trailing bytes.
+                 */
+                t = length / wsize;
+                TLOOP(*(word *)dst = *(word *)src; src += wsize; dst += wsize);
+                t = length & wmask;
+                TLOOP(*dst++ = *src++);
+        } else {
+                /*
+                 * Copy backwards.  Otherwise essentially the same.
+                 * Alignment works as before, except that it takes
+                 * (t&wmask) bytes to align, not wsize-(t&wmask).
+                 */
+                src += length;
+                dst += length;
+                t = (long)src;
+                if ((t | (long)dst) & wmask) {
+                        if ((t ^ (long)dst) & wmask || length <= wsize)
+                                t = length;
+                        else
+                                t &= wmask;
+                        length -= t;
+                        TLOOP1(*--dst = *--src);
+                }
+                t = length / wsize;
+                TLOOP(src -= wsize; dst -= wsize; *(word *)dst = *(word *)src);
+                t = length & wmask;
+                TLOOP(*--dst = *--src);
+        }
+done:
+#if defined(MEMCOPY) || defined(MEMMOVE)
+        return (dst0);
+#else
+        return;
+#endif
+}
diff --git a/src/lib/libc/string/bstring.3 b/src/lib/libc/string/bstring.3
new file mode 100644
index 0000000000..d88b78f504
--- /dev/null
+++ b/src/lib/libc/string/bstring.3
@@ -0,0 +1,108 @@
+.\" Copyright (c) 1990, 1991 The Regents of the University of California.
+.\" All rights reserved.
+.\"
+.\" This code is derived from software contributed to Berkeley by
+.\" Chris Torek.
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\" 3. Neither the name of the University nor the names of its contributors
+.\"    may be used to endorse or promote products derived from this software
+.\"    without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.\"     $OpenBSD: bstring.3,v 1.10 2013/06/05 03:39:23 tedu Exp $
+.\"
+.Dd $Mdocdate: June 5 2013 $
+.Dt BSTRING 3
+.Os
+.Sh NAME
+.Nm bstring
+.Nd byte string operations
+.Sh SYNOPSIS
+.In string.h
+.Ft int
+.Fn bcmp "const void *b1" "const void *b2" "size_t len"
+.Ft void
+.Fn bcopy "const void *src" "void *dst" "size_t len"
+.Ft void
+.Fn bzero "void *b" "size_t len"
+.Ft void *
+.Fn memchr "const void *b" "int c" "size_t len"
+.Ft int
+.Fn memcmp "const void *b1" "const void *b2" "size_t len"
+.Ft void *
+.Fn memccpy "void *dst" "const void *src" "int c" "size_t len"
+.Ft void *
+.Fn memcpy "void *dst" "const void *src" "size_t len"
+.Ft void *
+.Fn memmove "void *dst" "const void *src" "size_t len"
+.Ft void *
+.Fn memset "void *b" "int c" "size_t len"
+.Sh DESCRIPTION
+These functions operate on variable length strings of bytes.
+They do not check for terminating NUL bytes as the routines
+listed in
+.Xr string 3
+do.
+.Pp
+See the specific manual pages for more information.
+.Sh SEE ALSO
+.Xr bcmp 3 ,
+.Xr bcopy 3 ,
+.Xr bzero 3 ,
+.Xr memccpy 3 ,
+.Xr memchr 3 ,
+.Xr memcmp 3 ,
+.Xr memcpy 3 ,
+.Xr memmove 3 ,
+.Xr memset 3
+.Sh STANDARDS
+The functions
+.Fn memchr ,
+.Fn memcmp ,
+.Fn memcpy ,
+.Fn memmove ,
+and
+.Fn memset
+conform to
+.St -ansiC .
+.Sh HISTORY
+The
+.Fn bcmp ,
+.Fn bcopy ,
+and
+.Fn bzero
+functions first appeared in
+.Bx 4.2 .
+The
+.Fn memchr ,
+.Fn memcmp ,
+.Fn memccpy ,
+.Fn memcpy ,
+and
+.Fn memset
+functions first appeared in
+.At V
+and were reimplemented for
+.Bx 4.3 Tahoe .
+The
+.Fn memmove
+function first appeared in
+.Bx 4.3 Reno .
diff --git a/src/lib/libc/string/bzero.3 b/src/lib/libc/string/bzero.3
new file mode 100644
index 0000000000..3e21c4241f
--- /dev/null
+++ b/src/lib/libc/string/bzero.3
@@ -0,0 +1,74 @@
+.\" Copyright (c) 1990, 1991 The Regents of the University of California.
+.\" All rights reserved.
+.\"
+.\" This code is derived from software contributed to Berkeley by
+.\" Chris Torek.
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\" 3. Neither the name of the University nor the names of its contributors
+.\"    may be used to endorse or promote products derived from this software
+.\"    without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.\"     $OpenBSD: bzero.3,v 1.11 2014/01/22 22:21:25 jmc Exp $
+.\"
+.Dd $Mdocdate: January 22 2014 $
+.Dt BZERO 3
+.Os
+.Sh NAME
+.Nm bzero ,
+.Nm explicit_bzero
+.Nd write zeroes to a byte string
+.Sh SYNOPSIS
+.In string.h
+.Ft void
+.Fn bzero "void *b" "size_t len"
+.Ft void
+.Fn explicit_bzero "void *b" "size_t len"
+.Sh DESCRIPTION
+The
+.Fn bzero
+function writes
+.Fa len
+zero bytes to the string
+.Fa b .
+If
+.Fa len
+is zero,
+.Fn bzero
+does nothing.
+.Pp
+The
+.Fn explicit_bzero
+variant behaves the same, but will not be removed by a compiler's dead store
+optimization pass, making it useful for clearing sensitive memory such as a
+password.
+.Sh SEE ALSO
+.Xr memset 3 ,
+.Xr swab 3
+.Sh HISTORY
+The
+.Fn bzero
+function first appeared in
+.Bx 4.2 .
+The
+.Fn explicit_bzero
+function first appeared in
+.Ox 5.5 .
diff --git a/src/lib/libc/string/bzero.c b/src/lib/libc/string/bzero.c
new file mode 100644
index 0000000000..4d267d4f40
--- /dev/null
+++ b/src/lib/libc/string/bzero.c
@@ -0,0 +1,48 @@
+/*      $OpenBSD: bzero.c,v 1.7 2005/08/08 08:05:37 espie Exp $ */
+
+/*
+ * Copyright (c) 1987 Regents of the University of California.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#if !defined(_KERNEL) && !defined(_STANDALONE)
+#include <string.h>
+#else
+#include <lib/libkern/libkern.h>
+#endif
+
+/*
+ * bzero -- vax movc5 instruction
+ */
+void
+bzero(void *b, size_t length)
+{
+        char *p;
+
+        for (p = b; length--;)
+                *p++ = '\0';
+}
diff --git a/src/lib/libc/string/explicit_bzero.c b/src/lib/libc/string/explicit_bzero.c
new file mode 100644
index 0000000000..fd2948ca44
--- /dev/null
+++ b/src/lib/libc/string/explicit_bzero.c
@@ -0,0 +1,20 @@
+/*      $OpenBSD: explicit_bzero.c,v 1.1 2014/01/22 21:06:45 tedu Exp $ */
+/*
+ * Public domain.
+ * Written by Ted Unangst
+ */
+
+#if !defined(_KERNEL) && !defined(_STANDALONE)
+#include <string.h>
+#else
+#include <lib/libkern/libkern.h>
+#endif
+
+/*
+ * explicit_bzero - don't let the compiler optimize away bzero
+ */
+void
+explicit_bzero(void *p, size_t n)
+{
+        bzero(p, n);
+}
diff --git a/src/lib/libc/string/ffs.3 b/src/lib/libc/string/ffs.3
new file mode 100644
index 0000000000..c0ed7baa9e
--- /dev/null
+++ b/src/lib/libc/string/ffs.3
@@ -0,0 +1,61 @@
+.\" Copyright (c) 1990, 1991 The Regents of the University of California.
+.\" All rights reserved.
+.\"
+.\" This code is derived from software contributed to Berkeley by
+.\" Chris Torek.
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\" 3. Neither the name of the University nor the names of its contributors
+.\"    may be used to endorse or promote products derived from this software
+.\"    without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.\"     $OpenBSD: ffs.3,v 1.9 2013/06/05 03:39:23 tedu Exp $
+.\"
+.Dd $Mdocdate: June 5 2013 $
+.Dt FFS 3
+.Os
+.Sh NAME
+.Nm ffs
+.Nd find first bit set in a bit string
+.Sh SYNOPSIS
+.In string.h
+.Ft int
+.Fn ffs "int value"
+.Sh DESCRIPTION
+The
+.Fn ffs
+function finds the first bit set in
+.Fa value
+and returns the index of that bit.
+Bits are numbered starting from 1, starting at the rightmost bit.
+A return value of 0 means that the argument was zero.
+.Sh SEE ALSO
+.Xr bitstring 3
+.Sh STANDARDS
+The
+.Fn ffs
+function conforms to
+.St -p1003.1-2008 .
+.Sh HISTORY
+The
+.Fn ffs
+function first appeared in
+.Bx 4.2 .
diff --git a/src/lib/libc/string/ffs.c b/src/lib/libc/string/ffs.c
new file mode 100644
index 0000000000..7dec1613a8
--- /dev/null
+++ b/src/lib/libc/string/ffs.c
@@ -0,0 +1,44 @@
+/*      $OpenBSD: ffs.c,v 1.7 2005/08/08 08:05:37 espie Exp $   */
+
+/*
+ * Public domain.
+ * Written by Dale Rahn.
+ */
+
+#if !defined(_KERNEL) && !defined(_STANDALONE)
+#include <string.h>
+#else
+#include <lib/libkern/libkern.h>
+#endif
+
+/*
+ * ffs -- vax ffs instruction
+ */
+int
+ffs(int mask)
+{
+        int bit;
+        unsigned int r = mask;
+        static const signed char t[16] = {
+                -28, 1, 2, 1,
+                  3, 1, 2, 1,
+                  4, 1, 2, 1,
+                  3, 1, 2, 1
+        };
+
+        bit = 0;
+        if (!(r & 0xffff)) {
+                bit += 16;
+                r >>= 16;
+        }
+        if (!(r & 0xff)) {
+                bit += 8;
+                r >>= 8;
+        }
+        if (!(r & 0xf)) {
+                bit += 4;
+                r >>= 4;
+        }
+
+        return (bit + t[ r & 0xf ]);
+}
diff --git a/src/lib/libc/string/index.c b/src/lib/libc/string/index.c
new file mode 100644
index 0000000000..50e9ca35ab
--- /dev/null
+++ b/src/lib/libc/string/index.c
@@ -0,0 +1,47 @@
+/*      $OpenBSD: index.c,v 1.5 2005/08/08 08:05:37 espie Exp $ */
+/*-
+ * Copyright (c) 1990 The Regents of the University of California.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <string.h>
+
+char *
+#ifdef STRCHR
+strchr(const char *p, int ch)
+#else
+index(const char *p, int ch)
+#endif
+{
+        for (;; ++p) {
+                if (*p == ch)
+                        return((char *)p);
+                if (!*p)
+                        return((char *)NULL);
+        }
+        /* NOTREACHED */
+}
diff --git a/src/lib/libc/string/memccpy.3 b/src/lib/libc/string/memccpy.3
new file mode 100644
index 0000000000..98326d6871
--- /dev/null
+++ b/src/lib/libc/string/memccpy.3
@@ -0,0 +1,81 @@
+.\"     $OpenBSD: memccpy.3,v 1.12 2013/09/25 21:49:30 millert Exp $
+.\"
+.\" Copyright (c) 1990, 1991, 1993
+.\"     The Regents of the University of California.  All rights reserved.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\" 3. Neither the name of the University nor the names of its contributors
+.\"    may be used to endorse or promote products derived from this software
+.\"    without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.\"     @(#)memccpy.3   8.1 (Berkeley) 6/9/93
+.\"
+.Dd $Mdocdate: September 25 2013 $
+.Dt MEMCCPY 3
+.Os
+.Sh NAME
+.Nm memccpy
+.Nd copy string until character found
+.Sh SYNOPSIS
+.In string.h
+.Ft void *
+.Fn memccpy "void *dst" "const void *src" "int c" "size_t len"
+.Sh DESCRIPTION
+The
+.Fn memccpy
+function copies bytes from string
+.Fa src
+to string
+.Fa dst .
+If the character
+.Fa c
+(as converted to an
+.Li unsigned char )
+occurs in the string
+.Fa src ,
+the copy stops and a pointer to the byte after the copy of
+.Fa c
+in the string
+.Fa dst
+is returned.
+Otherwise,
+.Fa len
+bytes are copied, and a null pointer is returned.
+.Pp
+If the
+.Fa src
+and
+.Fa dst
+strings overlap, the behavior is undefined.
+.Sh SEE ALSO
+.Xr bcopy 3 ,
+.Xr memcpy 3 ,
+.Xr memmove 3 ,
+.Xr strcpy 3 ,
+.Xr strlcpy 3
+.Sh HISTORY
+The
+.Fn memccpy
+function first appeared in
+.At V
+and was reimplemented for
+.Bx 4.3 Tahoe .
diff --git a/src/lib/libc/string/memccpy.c b/src/lib/libc/string/memccpy.c
new file mode 100644
index 0000000000..485c55fcab
--- /dev/null
+++ b/src/lib/libc/string/memccpy.c
@@ -0,0 +1,48 @@
+/*      $OpenBSD: memccpy.c,v 1.6 2005/08/08 08:05:37 espie Exp $       */
+
+/*-
+ * Copyright (c) 1990, 1993
+ *      The Regents of the University of California.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <string.h>
+
+void *
+memccpy(void *t, const void *f, int c, size_t n)
+{
+
+        if (n) {
+                unsigned char *tp = t;
+                const unsigned char *fp = f;
+                unsigned char uc = c;
+                do {
+                        if ((*tp++ = *fp++) == uc)
+                                return (tp);
+                } while (--n != 0);
+        }
+        return (0);
+}
diff --git a/src/lib/libc/string/memchr.3 b/src/lib/libc/string/memchr.3
new file mode 100644
index 0000000000..8d8a9ddf9c
--- /dev/null
+++ b/src/lib/libc/string/memchr.3
@@ -0,0 +1,102 @@
+.\"     $OpenBSD: memchr.3,v 1.12 2014/04/07 17:57:56 schwarze Exp $
+.\"
+.\" Copyright (c) 1990, 1991 The Regents of the University of California.
+.\" All rights reserved.
+.\"
+.\" This code is derived from software contributed to Berkeley by
+.\" Chris Torek and the American National Standards Committee X3,
+.\" on Information Processing Systems.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\" 3. Neither the name of the University nor the names of its contributors
+.\"    may be used to endorse or promote products derived from this software
+.\"    without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.Dd $Mdocdate: April 7 2014 $
+.Dt MEMCHR 3
+.Os
+.Sh NAME
+.Nm memchr ,
+.Nm memrchr
+.Nd locate byte in byte string
+.Sh SYNOPSIS
+.In string.h
+.Ft void *
+.Fn memchr "const void *b" "int c" "size_t len"
+.Ft void *
+.Fn memrchr "const void *b" "int c" "size_t len"
+.Sh DESCRIPTION
+The
+.Fn memchr
+function locates the first occurrence of
+.Fa c
+(converted to an
+.Li unsigned char )
+in string
+.Fa b .
+.Pp
+The
+.Fn memrchr
+function behaves like
+.Fn memchr ,
+except that it locates the last occurrence of
+.Fa c
+in string
+.Fa b .
+.Sh RETURN VALUES
+The
+.Fn memchr
+and
+.Fn memrchr
+functions return a pointer to the byte located, or
+.Dv NULL
+if no such byte exists within
+.Fa len
+bytes.
+.Sh SEE ALSO
+.Xr strchr 3 ,
+.Xr strcspn 3 ,
+.Xr strpbrk 3 ,
+.Xr strrchr 3 ,
+.Xr strsep 3 ,
+.Xr strspn 3 ,
+.Xr strstr 3 ,
+.Xr strtok 3 ,
+.Xr wmemchr 3
+.Sh STANDARDS
+The
+.Fn memchr
+function conforms to
+.St -ansiC .
+.Pp
+The
+.Fn memrchr
+function is an
+.Ox
+extension.
+.Sh HISTORY
+The
+.Fn memchr
+function first appeared in
+.At V
+and was reimplemented for
+.Bx 4.3 Tahoe .
diff --git a/src/lib/libc/string/memchr.c b/src/lib/libc/string/memchr.c
new file mode 100644
index 0000000000..4573e3ceb1
--- /dev/null
+++ b/src/lib/libc/string/memchr.c
@@ -0,0 +1,48 @@
+/*      $OpenBSD: memchr.c,v 1.7 2005/08/08 08:05:37 espie Exp $ */
+/*-
+ * Copyright (c) 1990 The Regents of the University of California.
+ * All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Chris Torek.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <string.h>
+
+void *
+memchr(const void *s, int c, size_t n)
+{
+        if (n != 0) {
+                const unsigned char *p = s;
+
+                do {
+                        if (*p++ == (unsigned char)c)
+                                return ((void *)(p - 1));
+                } while (--n != 0);
+        }
+        return (NULL);
+}
diff --git a/src/lib/libc/string/memcmp.3 b/src/lib/libc/string/memcmp.3
new file mode 100644
index 0000000000..ebd838825a
--- /dev/null
+++ b/src/lib/libc/string/memcmp.3
@@ -0,0 +1,85 @@
+.\"     $OpenBSD: memcmp.3,v 1.8 2013/06/05 03:39:23 tedu Exp $
+.\"
+.\" Copyright (c) 1990, 1991 The Regents of the University of California.
+.\" All rights reserved.
+.\"
+.\" This code is derived from software contributed to Berkeley by
+.\" Chris Torek and the American National Standards Committee X3,
+.\" on Information Processing Systems.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\" 3. Neither the name of the University nor the names of its contributors
+.\"    may be used to endorse or promote products derived from this software
+.\"    without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.Dd $Mdocdate: June 5 2013 $
+.Dt MEMCMP 3
+.Os
+.Sh NAME
+.Nm memcmp
+.Nd compare byte string
+.Sh SYNOPSIS
+.In string.h
+.Ft int
+.Fn memcmp "const void *b1" "const void *b2" "size_t len"
+.Sh DESCRIPTION
+The
+.Fn memcmp
+function compares byte string
+.Fa b1
+against byte string
+.Fa b2 .
+Both strings are assumed to be
+.Fa len
+bytes long.
+.Sh RETURN VALUES
+The
+.Fn memcmp
+function returns zero if the two strings are identical,
+otherwise returns the difference between the first two differing bytes
+(treated as
+.Li unsigned char
+values, so that
+.Sq Li \e200
+is greater than
+.Sq Li \&\e0 ,
+for example).
+Zero-length strings are always identical.
+.Sh SEE ALSO
+.Xr bcmp 3 ,
+.Xr strcasecmp 3 ,
+.Xr strcmp 3 ,
+.Xr strcoll 3 ,
+.Xr strxfrm 3 ,
+.Xr wmemcmp 3
+.Sh STANDARDS
+The
+.Fn memcmp
+function conforms to
+.St -ansiC .
+.Sh HISTORY
+The
+.Fn memcmp
+function first appeared in
+.At V
+and was reimplemented for
+.Bx 4.3 Tahoe .
diff --git a/src/lib/libc/string/memcmp.c b/src/lib/libc/string/memcmp.c
new file mode 100644
index 0000000000..49384a6fb9
--- /dev/null
+++ b/src/lib/libc/string/memcmp.c
@@ -0,0 +1,51 @@
+/*      $OpenBSD: memcmp.c,v 1.5 2005/08/08 08:05:37 espie Exp $ */
+/*-
+ * Copyright (c) 1990 The Regents of the University of California.
+ * All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Chris Torek.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <string.h>
+
+/*
+ * Compare memory regions.
+ */
+int
+memcmp(const void *s1, const void *s2, size_t n)
+{
+        if (n != 0) {
+                const unsigned char *p1 = s1, *p2 = s2;
+
+                do {
+                        if (*p1++ != *p2++)
+                                return (*--p1 - *--p2);
+                } while (--n != 0);
+        }
+        return (0);
+}
diff --git a/src/lib/libc/string/memcpy.3 b/src/lib/libc/string/memcpy.3
new file mode 100644
index 0000000000..8df2a785b9
--- /dev/null
+++ b/src/lib/libc/string/memcpy.3
@@ -0,0 +1,79 @@
+.\"     $OpenBSD: memcpy.3,v 1.10 2013/06/05 03:39:23 tedu Exp $
+.\"
+.\" Copyright (c) 1990, 1991 The Regents of the University of California.
+.\" All rights reserved.
+.\"
+.\" This code is derived from software contributed to Berkeley by
+.\" Chris Torek and the American National Standards Committee X3,
+.\" on Information Processing Systems.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\" 3. Neither the name of the University nor the names of its contributors
+.\"    may be used to endorse or promote products derived from this software
+.\"    without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.Dd $Mdocdate: June 5 2013 $
+.Dt MEMCPY 3
+.Os
+.Sh NAME
+.Nm memcpy
+.Nd copy bytes
+.Sh SYNOPSIS
+.In string.h
+.Ft void *
+.Fn memcpy "void *dst" "const void *src" "size_t len"
+.Sh DESCRIPTION
+The
+.Fn memcpy
+function copies
+.Fa len
+bytes from buffer
+.Fa src
+to buffer
+.Fa dst .
+If the two buffers may overlap,
+.Xr memmove 3
+must be used instead.
+.Sh RETURN VALUES
+The
+.Fn memcpy
+function returns the original value of
+.Fa dst .
+.Sh SEE ALSO
+.Xr bcopy 3 ,
+.Xr memccpy 3 ,
+.Xr memmove 3 ,
+.Xr strcpy 3 ,
+.Xr strlcpy 3 ,
+.Xr wmemcpy 3
+.Sh STANDARDS
+The
+.Fn memcpy
+function conforms to
+.St -ansiC .
+.Sh HISTORY
+The
+.Fn memcpy
+function first appeared in
+.At V
+and was reimplemented for
+.Bx 4.3 Tahoe .
diff --git a/src/lib/libc/string/memmem.3 b/src/lib/libc/string/memmem.3
new file mode 100644
index 0000000000..b0b0bb966b
--- /dev/null
+++ b/src/lib/libc/string/memmem.3
@@ -0,0 +1,77 @@
+.\"     $OpenBSD: memmem.3,v 1.2 2013/07/16 15:21:11 schwarze Exp $
+.\"
+.\" Copyright (c) 2005 Pascal Gloor <pascal.gloor@spale.com>
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\" 3. The name of the author may not be used to endorse or promote
+.\"    products derived from this software without specific prior written
+.\"    permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.Dd $Mdocdate: July 16 2013 $
+.Dt MEMMEM 3
+.Os
+.Sh NAME
+.Nm memmem
+.Nd locate a byte substring in a byte string
+.Sh SYNOPSIS
+.In string.h
+.Ft "void *"
+.Fo memmem
+.Fa "const void *big" "size_t big_len"
+.Fa "const void *little" "size_t little_len"
+.Fc
+.Sh DESCRIPTION
+The
+.Fn memmem
+function
+locates the first occurrence of the byte string
+.Fa little
+in the byte string
+.Fa big .
+.Sh RETURN VALUES
+If
+.Fa little
+is zero length,
+.Fa big
+is returned; if
+.Fa little
+occurs nowhere in
+.Fa big ,
+.Dv NULL
+is returned;
+otherwise a pointer to the first character of the first occurrence of
+.Fa little
+is returned.
+.Sh SEE ALSO
+.Xr memchr 3 ,
+.Xr strchr 3 ,
+.Xr strstr 3
+.Sh STANDARDS
+.Fn memmem
+is a GNU extension.
+.Sh HISTORY
+The
+.Fn memmem
+function first appeared in
+.Ox 5.4 .
+.Sh AUTHORS
+.An Pascal Gloor Aq Mt pascal.gloor@spale.com
diff --git a/src/lib/libc/string/memmem.c b/src/lib/libc/string/memmem.c
new file mode 100644
index 0000000000..5793a7dfd7
--- /dev/null
+++ b/src/lib/libc/string/memmem.c
@@ -0,0 +1,63 @@
+/*      $OpenBSD: memmem.c,v 1.3 2013/05/30 01:10:45 ajacoutot Exp $ */
+/*-
+ * Copyright (c) 2005 Pascal Gloor <pascal.gloor@spale.com>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote
+ *    products derived from this software without specific prior written
+ *    permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <string.h>
+
+/*
+ * Find the first occurrence of the byte string s in byte string l.
+ */
+
+void *
+memmem(const void *l, size_t l_len, const void *s, size_t s_len)
+{
+        const char *cur, *last;
+        const char *cl = l;
+        const char *cs = s;
+
+        /* a zero length needle should just return the haystack */
+        if (s_len == 0)
+                return (void *)cl;
+
+        /* "s" must be smaller or equal to "l" */
+        if (l_len < s_len)
+                return NULL;
+
+        /* special case where s_len == 1 */
+        if (s_len == 1)
+                return memchr(l, *cs, l_len);
+
+        /* the last position where its possible to find "s" in "l" */
+        last = cl + l_len - s_len;
+
+        for (cur = cl; cur <= last; cur++)
+                if (cur[0] == cs[0] && memcmp(cur, cs, s_len) == 0)
+                        return (void *)cur;
+
+        return NULL;
+}
diff --git a/src/lib/libc/string/memmove.3 b/src/lib/libc/string/memmove.3
new file mode 100644
index 0000000000..8665e4abcf
--- /dev/null
+++ b/src/lib/libc/string/memmove.3
@@ -0,0 +1,76 @@
+.\"     $OpenBSD: memmove.3,v 1.9 2013/06/05 03:39:23 tedu Exp $
+.\"
+.\" Copyright (c) 1990, 1991 The Regents of the University of California.
+.\" All rights reserved.
+.\"
+.\" This code is derived from software contributed to Berkeley by
+.\" Chris Torek and the American National Standards Committee X3,
+.\" on Information Processing Systems.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\" 3. Neither the name of the University nor the names of its contributors
+.\"    may be used to endorse or promote products derived from this software
+.\"    without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.Dd $Mdocdate: June 5 2013 $
+.Dt MEMMOVE 3
+.Os
+.Sh NAME
+.Nm memmove
+.Nd copy bytes
+.Sh SYNOPSIS
+.In string.h
+.Ft void *
+.Fn memmove "void *dst" "const void *src" "size_t len"
+.Sh DESCRIPTION
+The
+.Fn memmove
+function copies
+.Fa len
+bytes from buffer
+.Fa src
+to buffer
+.Fa dst .
+The two buffers may overlap;
+the copy is always done in a non-destructive manner.
+.Sh RETURN VALUES
+The
+.Fn memmove
+function returns the original value of
+.Fa dst .
+.Sh SEE ALSO
+.Xr bcopy 3 ,
+.Xr memccpy 3 ,
+.Xr memcpy 3 ,
+.Xr strcpy 3 ,
+.Xr strlcpy 3 ,
+.Xr wmemmove 3
+.Sh STANDARDS
+The
+.Fn memmove
+function conforms to
+.St -ansiC .
+.Sh HISTORY
+The
+.Fn memmove
+function first appeared in
+.Bx 4.3 Reno .
diff --git a/src/lib/libc/string/memrchr.c b/src/lib/libc/string/memrchr.c
new file mode 100644
index 0000000000..bd27ebc620
--- /dev/null
+++ b/src/lib/libc/string/memrchr.c
@@ -0,0 +1,38 @@
+/*      $OpenBSD: memrchr.c,v 1.2 2007/11/27 16:22:12 martynas Exp $    */
+
+/*
+ * Copyright (c) 2007 Todd C. Miller <Todd.Miller@courtesan.com>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include <string.h>
+
+/*
+ * Reverse memchr()
+ * Find the last occurrence of 'c' in the buffer 's' of size 'n'.
+ */
+void *
+memrchr(const void *s, int c, size_t n)
+{
+        const unsigned char *cp;
+
+        if (n != 0) {
+                cp = (unsigned char *)s + n;
+                do {
+                        if (*(--cp) == (unsigned char)c)
+                                return((void *)cp);
+                } while (--n != 0);
+        }
+        return(NULL);
+}
diff --git a/src/lib/libc/string/memset.3 b/src/lib/libc/string/memset.3
new file mode 100644
index 0000000000..ac5b7e90ad
--- /dev/null
+++ b/src/lib/libc/string/memset.3
@@ -0,0 +1,75 @@
+.\"     $OpenBSD: memset.3,v 1.8 2013/06/05 03:39:23 tedu Exp $
+.\"
+.\" Copyright (c) 1990, 1991 The Regents of the University of California.
+.\" All rights reserved.
+.\"
+.\" This code is derived from software contributed to Berkeley by
+.\" Chris Torek and the American National Standards Committee X3,
+.\" on Information Processing Systems.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\" 3. Neither the name of the University nor the names of its contributors
+.\"    may be used to endorse or promote products derived from this software
+.\"    without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.Dd $Mdocdate: June 5 2013 $
+.Dt MEMSET 3
+.Os
+.Sh NAME
+.Nm memset
+.Nd write a byte to byte string
+.Sh SYNOPSIS
+.In string.h
+.Ft void *
+.Fn memset "void *b" "int c" "size_t len"
+.Sh DESCRIPTION
+The
+.Fn memset
+function writes
+.Fa len
+bytes of value
+.Fa c
+(converted to an
+.Li unsigned char )
+to the string
+.Fa b .
+.Sh RETURN VALUES
+The
+.Fn memset
+function returns the original value of
+.Fa b .
+.Sh SEE ALSO
+.Xr bzero 3 ,
+.Xr swab 3 ,
+.Xr wmemset 3
+.Sh STANDARDS
+The
+.Fn memset
+function conforms to
+.St -ansiC .
+.Sh HISTORY
+The
+.Fn memset
+function first appeared in
+.At V
+and was reimplemented for
+.Bx 4.3 Tahoe .
diff --git a/src/lib/libc/string/memset.c b/src/lib/libc/string/memset.c
new file mode 100644
index 0000000000..61709c139d
--- /dev/null
+++ b/src/lib/libc/string/memset.c
@@ -0,0 +1,47 @@
+/*      $OpenBSD: memset.c,v 1.6 2008/03/15 21:40:39 ray Exp $ */
+/*-
+ * Copyright (c) 1990 The Regents of the University of California.
+ * All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Chris Torek.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <string.h>
+
+void *
+memset(void *dst, int c, size_t n)
+{
+        if (n != 0) {
+                unsigned char *d = dst;
+
+                do
+                        *d++ = (unsigned char)c;
+                while (--n != 0);
+        }
+        return (dst);
+}
diff --git a/src/lib/libc/string/rindex.c b/src/lib/libc/string/rindex.c
new file mode 100644
index 0000000000..bf9d6f7cf1
--- /dev/null
+++ b/src/lib/libc/string/rindex.c
@@ -0,0 +1,49 @@
+/*      $OpenBSD: rindex.c,v 1.6 2005/08/08 08:05:37 espie Exp $ */
+/*
+ * Copyright (c) 1988 Regents of the University of California.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <string.h>
+
+char *
+#ifdef STRRCHR
+strrchr(const char *p, int ch)
+#else
+rindex(const char *p, int ch)
+#endif
+{
+        char *save;
+
+        for (save = NULL;; ++p) {
+                if (*p == ch)
+                        save = (char *)p;
+                if (!*p)
+                        return(save);
+        }
+        /* NOTREACHED */
+}
diff --git a/src/lib/libc/string/stpcpy.3 b/src/lib/libc/string/stpcpy.3
new file mode 100644
index 0000000000..973eebecdd
--- /dev/null
+++ b/src/lib/libc/string/stpcpy.3
@@ -0,0 +1,184 @@
+.\"     $OpenBSD: stpcpy.3,v 1.6 2014/02/23 23:09:34 schwarze Exp $
+.\"
+.\" Copyright (c) 1990, 1991 The Regents of the University of California.
+.\" All rights reserved.
+.\"
+.\" This code is derived from software contributed to Berkeley by
+.\" Chris Torek and the American National Standards Committee X3,
+.\" on Information Processing Systems.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\" 3. Neither the name of the University nor the names of its contributors
+.\"    may be used to endorse or promote products derived from this software
+.\"    without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.Dd $Mdocdate: February 23 2014 $
+.Dt STPCPY 3
+.Os
+.Sh NAME
+.Nm stpcpy ,
+.Nm stpncpy
+.Nd copy strings
+.Sh SYNOPSIS
+.In string.h
+.Ft char *
+.Fn stpcpy "char *dst" "const char *src"
+.Ft char *
+.Fn stpncpy "char *dst" "const char *src" "size_t len"
+.Sh DESCRIPTION
+The
+.Fn stpcpy
+and
+.Fn stpncpy
+functions copy the string
+.Fa src
+to
+.Fa dst
+(including the terminating
+.Ql \e0
+character).
+.Pp
+The
+.Fn stpncpy
+function copies not more than
+.Fa len
+characters into
+.Fa dst ,
+appending
+.Ql \e0
+characters if
+.Fa src
+is less than
+.Fa len
+characters long, and
+.Em not
+terminating
+.Fa dst
+if the length of
+.Fa src
+is greater than or equal to
+.Fa len .
+.Pp
+If the
+.Fa src
+and
+.Fa dst
+strings overlap, the behavior is undefined.
+.Sh RETURN VALUES
+The
+.Fn stpcpy
+function returns a pointer to the terminating
+.Ql \e0
+character written into
+.Fa dst .
+.Pp
+The
+.Fn stpncpy
+function returns a pointer to the first
+.Ql \e0
+character written into
+.Fa dst ,
+or to
+.Fa &dst[len]
+if the length of
+.Fa src
+is greater than or equal to
+.Fa len .
+.Sh EXAMPLES
+The most common use of
+.Fn stpcpy
+is to build up a string from multiple elements.
+The following example builds up a pathname from
+directory and file components using
+.Fn stpcpy :
+.Bd -literal -offset indent
+char *dir, *file, pname[PATH_MAX];
+
+\&...
+
+if (strlen(dir) + strlen("/") + strlen(file) >= sizeof(pname))
+        goto toolong;
+stpcpy(stpcpy(stpcpy(pname, dir), "/"), file);
+.Ed
+.Pp
+However, the size check required to avoid a buffer overflow is error
+prone since the check can become out of sync with the code that
+performs the copy.
+.Pp
+One might expect that
+.Fn stpncpy
+could be safely used instead, but it suffers from the same defects as
+.Fn strncpy .
+The example below using
+.Fn stpncpy
+is even more prone to error and will not detect when truncation occurs:
+.Bd -literal -offset indent
+char *dir, *file, pname[PATH_MAX];
+char *p1, *p2;
+
+\&...
+
+p1 = stpncpy(pname, dir, sizeof(pname) - 1);
+p2 = stpncpy(p1, "/", sizeof(pname) - 1 - (p1 - pname));
+stpncpy(p2, file, sizeof(pname) - 1 - (p2 - pname));
+pname[sizeof(pname) - 1] = '\e0';
+.Ed
+.Pp
+A safer (and simpler) approach is to use
+.Fn snprintf :
+.Bd -literal -offset indent
+char *dir, *file, pname[PATH_MAX];
+int len;
+
+\&...
+
+len = snprintf(pname, sizeof(pname), "%s/%s", dir, file);
+if (len >= sizeof(pname))
+        goto toolong;
+.Ed
+.Pp
+In most cases, it is better to use
+.Fn snprintf ,
+.Fn strlcpy ,
+or
+.Fn strlcat .
+.Sh SEE ALSO
+.Xr snprintf 3 ,
+.Xr strcpy 3 ,
+.Xr strlcpy 3 ,
+.Xr strncpy 3
+.Sh STANDARDS
+The
+.Fn stpcpy
+and
+.Fn stpncpy
+functions conform to
+.St -p1003.1-2008 .
+.Sh HISTORY
+The function
+.Fn stpcpy
+first appeared in the Lattice C AmigaDOS compiler (1986 or earlier).
+The function
+.Fn stpncpy
+first appeared in the GNU C library version 1.07 (1993).
+Both functions have been available since
+.Ox 5.1 .
diff --git a/src/lib/libc/string/stpcpy.c b/src/lib/libc/string/stpcpy.c
new file mode 100644
index 0000000000..d3d61e0f14
--- /dev/null
+++ b/src/lib/libc/string/stpcpy.c
@@ -0,0 +1,44 @@
+/*      $OpenBSD: stpcpy.c,v 1.1 2012/01/17 02:48:01 guenther Exp $     */
+
+/*
+ * Copyright (c) 1988 Regents of the University of California.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <string.h>
+
+#if defined(APIWARN)
+__warn_references(stpcpy,
+    "warning: stpcpy() is dangerous GNU crap; don't use it");
+#endif
+
+char *
+stpcpy(char *to, const char *from)
+{
+        for (; (*to = *from) != '\0'; ++from, ++to);
+        return(to);
+}
diff --git a/src/lib/libc/string/stpncpy.c b/src/lib/libc/string/stpncpy.c
new file mode 100644
index 0000000000..c7c2a57c4c
--- /dev/null
+++ b/src/lib/libc/string/stpncpy.c
@@ -0,0 +1,56 @@
+/*      $OpenBSD: stpncpy.c,v 1.2 2012/07/11 10:44:59 naddy Exp $       */
+
+/*-
+ * Copyright (c) 1990 The Regents of the University of California.
+ * All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Chris Torek.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <string.h>
+
+char *
+stpncpy(char *dst, const char *src, size_t n)
+{
+        if (n != 0) {
+                char *d = dst;
+                const char *s = src;
+
+                dst = &dst[n];
+                do {
+                        if ((*d++ = *s++) == 0) {
+                                dst = d - 1;
+                                /* NUL pad the remaining n-1 bytes */
+                                while (--n != 0)
+                                        *d++ = 0;
+                                break;
+                        }
+                } while (--n != 0);
+        }
+        return (dst);
+}
diff --git a/src/lib/libc/string/strcasecmp.3 b/src/lib/libc/string/strcasecmp.3
new file mode 100644
index 0000000000..8bd7387dc5
--- /dev/null
+++ b/src/lib/libc/string/strcasecmp.3
@@ -0,0 +1,92 @@
+.\"     $OpenBSD: strcasecmp.3,v 1.12 2013/06/05 03:39:23 tedu Exp $
+.\"
+.\" Copyright (c) 1990, 1991, 1993
+.\"     The Regents of the University of California.  All rights reserved.
+.\"
+.\" This code is derived from software contributed to Berkeley by
+.\" Chris Torek.
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\" 3. Neither the name of the University nor the names of its contributors
+.\"    may be used to endorse or promote products derived from this software
+.\"    without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.\"     @(#)strcasecmp.3        8.1 (Berkeley) 6/9/93
+.\"
+.Dd $Mdocdate: June 5 2013 $
+.Dt STRCASECMP 3
+.Os
+.Sh NAME
+.Nm strcasecmp ,
+.Nm strncasecmp
+.Nd compare strings, ignoring case
+.Sh SYNOPSIS
+.In string.h
+.Ft int
+.Fn strcasecmp "const char *s1" "const char *s2"
+.Ft int
+.Fn strncasecmp "const char *s1" "const char *s2" "size_t len"
+.Sh DESCRIPTION
+The
+.Fn strcasecmp
+and
+.Fn strncasecmp
+functions compare the NUL-terminated strings
+.Fa s1
+and
+.Fa s2
+and return an integer greater than, equal to, or less than 0,
+according to whether
+.Fa s1
+is lexicographically greater than, equal to, or less than
+.Fa s2
+after translation of each corresponding character to lower-case.
+The strings themselves are not modified.
+The comparison is done using unsigned characters, so that
+.Sq Li \e200
+is greater than
+.Ql \e0 .
+.Pp
+.Fn strncasecmp
+compares at most
+.Fa len
+characters.
+.Sh SEE ALSO
+.Xr bcmp 3 ,
+.Xr memcmp 3 ,
+.Xr strcmp 3 ,
+.Xr strcoll 3 ,
+.Xr strxfrm 3 ,
+.Xr wcscasecmp 3
+.Sh STANDARDS
+The
+.Fn strcasecmp
+and
+.Fn strncasecmp
+functions conform to
+.St -p1003.1-2008 .
+.Sh HISTORY
+The
+.Fn strcasecmp
+and
+.Fn strncasecmp
+functions first appeared in
+.Bx 4.3 Tahoe .
diff --git a/src/lib/libc/string/strcasecmp.c b/src/lib/libc/string/strcasecmp.c
new file mode 100644
index 0000000000..2be09136c0
--- /dev/null
+++ b/src/lib/libc/string/strcasecmp.c
@@ -0,0 +1,105 @@
+/*      $OpenBSD: strcasecmp.c,v 1.6 2005/08/08 08:05:37 espie Exp $    */
+
+/*
+ * Copyright (c) 1987, 1993
+ *      The Regents of the University of California.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <string.h>
+
+typedef unsigned char u_char;
+
+/*
+ * This array is designed for mapping upper and lower case letter
+ * together for a case independent comparison.  The mappings are
+ * based upon ascii character sequences.
+ */
+static const u_char charmap[] = {
+        '\000', '\001', '\002', '\003', '\004', '\005', '\006', '\007',
+        '\010', '\011', '\012', '\013', '\014', '\015', '\016', '\017',
+        '\020', '\021', '\022', '\023', '\024', '\025', '\026', '\027',
+        '\030', '\031', '\032', '\033', '\034', '\035', '\036', '\037',
+        '\040', '\041', '\042', '\043', '\044', '\045', '\046', '\047',
+        '\050', '\051', '\052', '\053', '\054', '\055', '\056', '\057',
+        '\060', '\061', '\062', '\063', '\064', '\065', '\066', '\067',
+        '\070', '\071', '\072', '\073', '\074', '\075', '\076', '\077',
+        '\100', '\141', '\142', '\143', '\144', '\145', '\146', '\147',
+        '\150', '\151', '\152', '\153', '\154', '\155', '\156', '\157',
+        '\160', '\161', '\162', '\163', '\164', '\165', '\166', '\167',
+        '\170', '\171', '\172', '\133', '\134', '\135', '\136', '\137',
+        '\140', '\141', '\142', '\143', '\144', '\145', '\146', '\147',
+        '\150', '\151', '\152', '\153', '\154', '\155', '\156', '\157',
+        '\160', '\161', '\162', '\163', '\164', '\165', '\166', '\167',
+        '\170', '\171', '\172', '\173', '\174', '\175', '\176', '\177',
+        '\200', '\201', '\202', '\203', '\204', '\205', '\206', '\207',
+        '\210', '\211', '\212', '\213', '\214', '\215', '\216', '\217',
+        '\220', '\221', '\222', '\223', '\224', '\225', '\226', '\227',
+        '\230', '\231', '\232', '\233', '\234', '\235', '\236', '\237',
+        '\240', '\241', '\242', '\243', '\244', '\245', '\246', '\247',
+        '\250', '\251', '\252', '\253', '\254', '\255', '\256', '\257',
+        '\260', '\261', '\262', '\263', '\264', '\265', '\266', '\267',
+        '\270', '\271', '\272', '\273', '\274', '\275', '\276', '\277',
+        '\300', '\301', '\302', '\303', '\304', '\305', '\306', '\307',
+        '\310', '\311', '\312', '\313', '\314', '\315', '\316', '\317',
+        '\320', '\321', '\322', '\323', '\324', '\325', '\326', '\327',
+        '\330', '\331', '\332', '\333', '\334', '\335', '\336', '\337',
+        '\340', '\341', '\342', '\343', '\344', '\345', '\346', '\347',
+        '\350', '\351', '\352', '\353', '\354', '\355', '\356', '\357',
+        '\360', '\361', '\362', '\363', '\364', '\365', '\366', '\367',
+        '\370', '\371', '\372', '\373', '\374', '\375', '\376', '\377',
+};
+
+int
+strcasecmp(const char *s1, const char *s2)
+{
+        const u_char *cm = charmap;
+        const u_char *us1 = (const u_char *)s1;
+        const u_char *us2 = (const u_char *)s2;
+
+        while (cm[*us1] == cm[*us2++])
+                if (*us1++ == '\0')
+                        return (0);
+        return (cm[*us1] - cm[*--us2]);
+}
+
+int
+strncasecmp(const char *s1, const char *s2, size_t n)
+{
+        if (n != 0) {
+                const u_char *cm = charmap;
+                const u_char *us1 = (const u_char *)s1;
+                const u_char *us2 = (const u_char *)s2;
+
+                do {
+                        if (cm[*us1] != cm[*us2++])
+                                return (cm[*us1] - cm[*--us2]);
+                        if (*us1++ == '\0')
+                                break;
+                } while (--n != 0);
+        }
+        return (0);
+}
diff --git a/src/lib/libc/string/strcasestr.c b/src/lib/libc/string/strcasestr.c
new file mode 100644
index 0000000000..aa74c0176d
--- /dev/null
+++ b/src/lib/libc/string/strcasestr.c
@@ -0,0 +1,60 @@
+/*      $OpenBSD: strcasestr.c,v 1.3 2006/03/31 05:34:55 deraadt Exp $  */
+/*      $NetBSD: strcasestr.c,v 1.2 2005/02/09 21:35:47 kleink Exp $    */
+
+/*-
+ * Copyright (c) 1990, 1993
+ *      The Regents of the University of California.  All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Chris Torek.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <ctype.h>
+#include <string.h>
+
+/*
+ * Find the first occurrence of find in s, ignore case.
+ */
+char *
+strcasestr(const char *s, const char *find)
+{
+        char c, sc;
+        size_t len;
+
+        if ((c = *find++) != 0) {
+                c = (char)tolower((unsigned char)c);
+                len = strlen(find);
+                do {
+                        do {
+                                if ((sc = *s++) == 0)
+                                        return (NULL);
+                        } while ((char)tolower((unsigned char)sc) != c);
+                } while (strncasecmp(s, find, len) != 0);
+                s--;
+        }
+        return ((char *)s);
+}
diff --git a/src/lib/libc/string/strcat.3 b/src/lib/libc/string/strcat.3
new file mode 100644
index 0000000000..fba992edd9
--- /dev/null
+++ b/src/lib/libc/string/strcat.3
@@ -0,0 +1,81 @@
+.\"     $OpenBSD: strcat.3,v 1.16 2013/12/19 20:52:37 millert Exp $
+.\"
+.\" Copyright (c) 1990, 1991 The Regents of the University of California.
+.\" All rights reserved.
+.\"
+.\" This code is derived from software contributed to Berkeley by
+.\" Chris Torek and the American National Standards Committee X3,
+.\" on Information Processing Systems.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\" 3. Neither the name of the University nor the names of its contributors
+.\"    may be used to endorse or promote products derived from this software
+.\"    without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.Dd $Mdocdate: December 19 2013 $
+.Dt STRCAT 3
+.Os
+.Sh NAME
+.Nm strcat
+.Nd concatenate two strings
+.Sh SYNOPSIS
+.In string.h
+.Ft char *
+.Fn strcat "char *s" "const char *append"
+.Sh DESCRIPTION
+The
+.Fn strcat
+function appends a copy of the NUL-terminated string
+.Fa append
+to the end of the NUL-terminated string
+.Fa s ,
+then adds a terminating
+.Ql \e0 .
+The string
+.Fa s
+must have sufficient space to hold the result.
+.Sh RETURN VALUES
+The
+.Fn strcat
+function return the pointer
+.Fa s .
+.Sh SEE ALSO
+.Xr bcopy 3 ,
+.Xr memccpy 3 ,
+.Xr memcpy 3 ,
+.Xr memmove 3 ,
+.Xr strcpy 3 ,
+.Xr strlcpy 3 ,
+.Xr strncat 3 ,
+.Xr wcscat 3 ,
+.Xr wcslcpy 3
+.Sh STANDARDS
+The
+.Fn strcat
+function conforms to
+.St -ansiC .
+.Sh HISTORY
+The
+.Fn strcat
+function first appeared in the Programmer's Workbench (PWB/UNIX)
+and was ported to
+.At v7 .
diff --git a/src/lib/libc/string/strcat.c b/src/lib/libc/string/strcat.c
new file mode 100644
index 0000000000..7cea5229fb
--- /dev/null
+++ b/src/lib/libc/string/strcat.c
@@ -0,0 +1,51 @@
+/*      $OpenBSD: strcat.c,v 1.8 2005/08/08 08:05:37 espie Exp $        */
+
+/*
+ * Copyright (c) 1988 Regents of the University of California.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#if !defined(_KERNEL) && !defined(_STANDALONE)
+#include <string.h>
+#else
+#include <lib/libkern/libkern.h>
+#endif
+
+#if defined(APIWARN)
+__warn_references(strcat,
+    "warning: strcat() is almost always misused, please use strlcat()");
+#endif
+
+char *
+strcat(char *s, const char *append)
+{
+        char *save = s;
+
+        for (; *s; ++s);
+        while ((*s++ = *append++) != '\0');
+        return(save);
+}
diff --git a/src/lib/libc/string/strchr.3 b/src/lib/libc/string/strchr.3
new file mode 100644
index 0000000000..eb9ac8e833
--- /dev/null
+++ b/src/lib/libc/string/strchr.3
@@ -0,0 +1,114 @@
+.\"     $OpenBSD: strchr.3,v 1.11 2013/06/05 03:39:23 tedu Exp $
+.\"
+.\" Copyright (c) 1990, 1991 The Regents of the University of California.
+.\" All rights reserved.
+.\"
+.\" This code is derived from software contributed to Berkeley by
+.\" Chris Torek and the American National Standards Committee X3,
+.\" on Information Processing Systems.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\" 3. Neither the name of the University nor the names of its contributors
+.\"    may be used to endorse or promote products derived from this software
+.\"    without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.Dd $Mdocdate: June 5 2013 $
+.Dt STRCHR 3
+.Os
+.Sh NAME
+.Nm strchr ,
+.Nm index
+.Nd locate first occurrence of a character in a string
+.Sh SYNOPSIS
+.In string.h
+.Ft char *
+.Fn strchr "const char *s" "int c"
+.Ft char *
+.Fn index "const char *s" "int c"
+.Sh DESCRIPTION
+The
+.Fn strchr
+function locates the first occurrence of the character
+.Fa c
+in the string
+.Fa s .
+The terminating NUL character is considered part of the string.
+If
+.Fa c
+is
+.Ql \e0 ,
+.Fn strchr
+locates the terminating
+.Ql \e0 .
+.Pp
+The
+.Fn index
+function is an old synonym for
+.Fn strchr .
+.Sh RETURN VALUES
+The
+.Fn strchr
+function returns a pointer to the located character or
+.Dv NULL
+if the character does not appear in the string.
+.Sh EXAMPLES
+After the following call to
+.Fn strchr ,
+.Va p
+will point to the string
+.Qq oobar :
+.Bd -literal -offset indent
+char *p;
+char *s = "foobar";
+
+p = strchr(s, 'o');
+.Ed
+.Sh SEE ALSO
+.Xr memchr 3 ,
+.Xr strcspn 3 ,
+.Xr strpbrk 3 ,
+.Xr strrchr 3 ,
+.Xr strsep 3 ,
+.Xr strspn 3 ,
+.Xr strstr 3 ,
+.Xr strtok 3 ,
+.Xr wcschr 3
+.Sh STANDARDS
+The
+.Fn strchr
+function conforms to
+.St -ansiC .
+.Pp
+The
+.Fn index
+function is deprecated and shouldn't be used in new code.
+.Sh HISTORY
+The
+.Fn index
+function first appeared in
+.At v7 .
+The
+.Fn strchr
+function first appeared in
+.At III
+and was reimplemented for
+.Bx 4.3 Tahoe .
diff --git a/src/lib/libc/string/strcmp.3 b/src/lib/libc/string/strcmp.3
new file mode 100644
index 0000000000..63dc7fed2d
--- /dev/null
+++ b/src/lib/libc/string/strcmp.3
@@ -0,0 +1,97 @@
+.\"     $OpenBSD: strcmp.3,v 1.14 2013/07/17 05:42:11 schwarze Exp $
+.\"
+.\" Copyright (c) 1990, 1991 The Regents of the University of California.
+.\" All rights reserved.
+.\"
+.\" This code is derived from software contributed to Berkeley by
+.\" Chris Torek and the American National Standards Committee X3,
+.\" on Information Processing Systems.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\" 3. Neither the name of the University nor the names of its contributors
+.\"    may be used to endorse or promote products derived from this software
+.\"    without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.Dd $Mdocdate: July 17 2013 $
+.Dt STRCMP 3
+.Os
+.Sh NAME
+.Nm strcmp ,
+.Nm strncmp
+.Nd compare strings
+.Sh SYNOPSIS
+.In string.h
+.Ft int
+.Fn strcmp "const char *s1" "const char *s2"
+.Ft int
+.Fn strncmp "const char *s1" "const char *s2" "size_t len"
+.Sh DESCRIPTION
+The
+.Fn strcmp
+and
+.Fn strncmp
+functions lexicographically compare the NUL-terminated strings
+.Fa s1
+and
+.Fa s2 .
+The
+.Fn strncmp
+function compares at most
+.Fa len
+characters.
+.Sh RETURN VALUES
+The
+.Fn strcmp
+and
+.Fn strncmp
+functions return an integer greater than, equal to, or less than 0, according
+to whether the string
+.Fa s1
+is greater than, equal to, or less than the string
+.Fa s2 .
+The comparison is done using unsigned characters, so that
+.Ql \e200
+is greater than
+.Ql \e0 .
+.Sh SEE ALSO
+.Xr bcmp 3 ,
+.Xr memcmp 3 ,
+.Xr strcasecmp 3 ,
+.Xr strcoll 3 ,
+.Xr strxfrm 3 ,
+.Xr wcscmp 3
+.Sh STANDARDS
+The
+.Fn strcmp
+and
+.Fn strncmp
+functions conform to
+.St -ansiC .
+.Sh HISTORY
+The
+.Fn strcmp
+function first appeared in the Programmer's Workbench (PWB/UNIX)
+and was ported to
+.At v7 ;
+.Fn strncmp
+first appeared in
+.At v7 .
diff --git a/src/lib/libc/string/strcmp.c b/src/lib/libc/string/strcmp.c
new file mode 100644
index 0000000000..816fd111ac
--- /dev/null
+++ b/src/lib/libc/string/strcmp.c
@@ -0,0 +1,51 @@
+/*      $OpenBSD: strcmp.c,v 1.7 2005/08/08 08:05:37 espie Exp $        */
+
+/*-
+ * Copyright (c) 1990 The Regents of the University of California.
+ * All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Chris Torek.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#if !defined(_KERNEL) && !defined(_STANDALONE)
+#include <string.h>
+#else
+#include <lib/libkern/libkern.h>
+#endif
+
+/*
+ * Compare strings.
+ */
+int
+strcmp(const char *s1, const char *s2)
+{
+        while (*s1 == *s2++)
+                if (*s1++ == 0)
+                        return (0);
+        return (*(unsigned char *)s1 - *(unsigned char *)--s2);
+}
diff --git a/src/lib/libc/string/strcoll.3 b/src/lib/libc/string/strcoll.3
new file mode 100644
index 0000000000..d421200b62
--- /dev/null
+++ b/src/lib/libc/string/strcoll.3
@@ -0,0 +1,73 @@
+.\" Copyright (c) 1990, 1991 The Regents of the University of California.
+.\" All rights reserved.
+.\"
+.\" This code is derived from software contributed to Berkeley by
+.\" Chris Torek and the American National Standards Committee X3,
+.\" on Information Processing Systems.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\" 3. Neither the name of the University nor the names of its contributors
+.\"    may be used to endorse or promote products derived from this software
+.\"    without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.\"     $OpenBSD: strcoll.3,v 1.9 2013/06/05 03:39:23 tedu Exp $
+.\"
+.Dd $Mdocdate: June 5 2013 $
+.Dt STRCOLL 3
+.Os
+.Sh NAME
+.Nm strcoll
+.Nd compare strings according to current collation
+.Sh SYNOPSIS
+.In string.h
+.Ft int
+.Fn strcoll "const char *s1" "const char *s2"
+.Sh DESCRIPTION
+The
+.Fn strcoll
+function lexicographically compares the NUL-terminated strings
+.Fa s1
+and
+.Fa s2
+according to the current locale collation
+and returns an integer greater than, equal to, or less than 0,
+according to whether
+.Fa s1
+is greater than, equal to, or less than
+.Fa s2 .
+.Sh SEE ALSO
+.Xr bcmp 3 ,
+.Xr memcmp 3 ,
+.Xr setlocale 3 ,
+.Xr strcasecmp 3 ,
+.Xr strcmp 3 ,
+.Xr strxfrm 3
+.Sh STANDARDS
+The
+.Fn strcoll
+function conforms to
+.St -ansiC .
+.Sh HISTORY
+The
+.Fn strcoll
+function first appeared in
+.Bx 4.3 Reno .
diff --git a/src/lib/libc/string/strcoll.c b/src/lib/libc/string/strcoll.c
new file mode 100644
index 0000000000..2df983bd65
--- /dev/null
+++ b/src/lib/libc/string/strcoll.c
@@ -0,0 +1,44 @@
+/*      $OpenBSD: strcoll.c,v 1.5 2005/08/08 08:05:37 espie Exp $ */
+/*-
+ * Copyright (c) 1990 The Regents of the University of California.
+ * All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Chris Torek.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <string.h>
+
+/*
+ * Compare strings according to LC_COLLATE category of current locale.
+ */
+int
+strcoll(const char *s1, const char *s2)
+{
+        /* LC_COLLATE is unimplemented, hence always "C" */
+        return (strcmp(s1, s2));
+}
diff --git a/src/lib/libc/string/strcpy.3 b/src/lib/libc/string/strcpy.3
new file mode 100644
index 0000000000..849184d1f5
--- /dev/null
+++ b/src/lib/libc/string/strcpy.3
@@ -0,0 +1,92 @@
+.\"     $OpenBSD: strcpy.3,v 1.20 2013/12/19 20:52:37 millert Exp $
+.\"
+.\" Copyright (c) 1990, 1991 The Regents of the University of California.
+.\" All rights reserved.
+.\"
+.\" This code is derived from software contributed to Berkeley by
+.\" Chris Torek and the American National Standards Committee X3,
+.\" on Information Processing Systems.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\" 3. Neither the name of the University nor the names of its contributors
+.\"    may be used to endorse or promote products derived from this software
+.\"    without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.Dd $Mdocdate: December 19 2013 $
+.Dt STRCPY 3
+.Os
+.Sh NAME
+.Nm strcpy
+.Nd copy a string
+.Sh SYNOPSIS
+.In string.h
+.Ft char *
+.Fn strcpy "char *dst" "const char *src"
+.Sh DESCRIPTION
+The
+.Fn strcpy
+function copies the string
+.Fa src
+to
+.Fa dst
+(including the terminating
+.Ql \e0
+character).
+The string
+.Fa dst
+must be at least as large as
+.Fa src
+to hold the result.
+.Pp
+If the
+.Fa src
+and
+.Fa dst
+strings overlap, the behavior is undefined.
+.Sh RETURN VALUES
+The
+.Fn strcpy
+function returns
+.Fa dst .
+.Sh SEE ALSO
+.Xr bcopy 3 ,
+.Xr memccpy 3 ,
+.Xr memcpy 3 ,
+.Xr memmove 3 ,
+.Xr strcat 3 ,
+.Xr strlcpy 3 ,
+.Xr strncpy 3 ,
+.Xr wcscpy 3 ,
+.Xr wcslcpy 3
+.Sh STANDARDS
+The
+.Fn strcpy
+and
+.Fn strncpy
+functions conform to
+.St -ansiC .
+.Sh HISTORY
+The
+.Fn strcpy
+function first appeared in the Programmer's Workbench (PWB/UNIX)
+and was ported to
+.At v7 .
diff --git a/src/lib/libc/string/strcpy.c b/src/lib/libc/string/strcpy.c
new file mode 100644
index 0000000000..71d90d4100
--- /dev/null
+++ b/src/lib/libc/string/strcpy.c
@@ -0,0 +1,50 @@
+/*      $OpenBSD: strcpy.c,v 1.8 2005/08/08 08:05:37 espie Exp $        */
+
+/*
+ * Copyright (c) 1988 Regents of the University of California.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#if !defined(_KERNEL) && !defined(_STANDALONE)
+#include <string.h>
+#else
+#include <lib/libkern/libkern.h>
+#endif
+
+#if defined(APIWARN)
+__warn_references(strcpy,
+    "warning: strcpy() is almost always misused, please use strlcpy()");
+#endif
+
+char *
+strcpy(char *to, const char *from)
+{
+        char *save = to;
+
+        for (; (*to = *from) != '\0'; ++from, ++to);
+        return(save);
+}
diff --git a/src/lib/libc/string/strcspn.3 b/src/lib/libc/string/strcspn.3
new file mode 100644
index 0000000000..07eb9ca26f
--- /dev/null
+++ b/src/lib/libc/string/strcspn.3
@@ -0,0 +1,108 @@
+.\"     $OpenBSD: strcspn.3,v 1.11 2013/06/05 03:39:23 tedu Exp $
+.\"
+.\" Copyright (c) 1990, 1991 The Regents of the University of California.
+.\" All rights reserved.
+.\"
+.\" This code is derived from software contributed to Berkeley by
+.\" Chris Torek and the American National Standards Committee X3,
+.\" on Information Processing Systems.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\" 3. Neither the name of the University nor the names of its contributors
+.\"    may be used to endorse or promote products derived from this software
+.\"    without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.Dd $Mdocdate: June 5 2013 $
+.Dt STRCSPN 3
+.Os
+.Sh NAME
+.Nm strcspn
+.Nd span the complement of a string
+.Sh SYNOPSIS
+.In string.h
+.Ft size_t
+.Fn strcspn "const char *s" "const char *charset"
+.Sh DESCRIPTION
+The
+.Fn strcspn
+function spans the initial part of the NUL-terminated string
+.Fa s
+as long as the characters from
+.Fa s
+do not occur in string
+.Fa charset
+(it spans the
+.Em complement
+of
+.Fa charset ) .
+.Sh RETURN VALUES
+The
+.Fn strcspn
+function returns the number of characters spanned.
+.Sh EXAMPLES
+The following call to
+.Fn strcspn
+will return 3, since the first three characters of string
+.Fa s
+do not occur in string
+.Fa charset :
+.Bd -literal -offset indent
+char *s = "foobar";
+char *charset = "bar";
+size_t span;
+
+span = strcspn(s, charset);
+.Ed
+.Pp
+The following removes the first (if any) newline character from string
+.Fa line .
+This is useful for trimming the newline after a
+.Xr fgets 3
+call.
+.Bd -literal -offset indent
+char line[BUFSIZ];
+
+if (fgets(line, sizeof(line), fp) != NULL)
+        line[strcspn(line, "\en")] = '\e0';
+.Ed
+.Sh SEE ALSO
+.Xr memchr 3 ,
+.Xr strchr 3 ,
+.Xr strpbrk 3 ,
+.Xr strrchr 3 ,
+.Xr strsep 3 ,
+.Xr strspn 3 ,
+.Xr strstr 3 ,
+.Xr strtok 3 ,
+.Xr wcscspn 3
+.Sh STANDARDS
+The
+.Fn strcspn
+function conforms to
+.St -ansiC .
+.Sh HISTORY
+The
+.Fn strcspn
+function first appeared in
+.At III
+and was reimplemented for
+.Bx 4.3 Tahoe .
diff --git a/src/lib/libc/string/strcspn.c b/src/lib/libc/string/strcspn.c
new file mode 100644
index 0000000000..1eb233614d
--- /dev/null
+++ b/src/lib/libc/string/strcspn.c
@@ -0,0 +1,58 @@
+/*      $OpenBSD: strcspn.c,v 1.5 2005/08/08 08:05:37 espie Exp $ */
+/*-
+ * Copyright (c) 1990 The Regents of the University of California.
+ * All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Chris Torek.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <string.h>
+
+/*
+ * Span the complement of string s2.
+ */
+size_t
+strcspn(const char *s1, const char *s2)
+{
+        const char *p, *spanp;
+        char c, sc;
+
+        /*
+         * Stop as soon as we find any character from s2.  Note that there
+         * must be a NUL in s2; it suffices to stop when we find that, too.
+         */
+        for (p = s1;;) {
+                c = *p++;
+                spanp = s2;
+                do {
+                        if ((sc = *spanp++) == c)
+                                return (p - 1 - s1);
+                } while (sc != 0);
+        }
+        /* NOTREACHED */
+}
diff --git a/src/lib/libc/string/strdup.3 b/src/lib/libc/string/strdup.3
new file mode 100644
index 0000000000..2d7fa0bb96
--- /dev/null
+++ b/src/lib/libc/string/strdup.3
@@ -0,0 +1,112 @@
+.\"     $OpenBSD: strdup.3,v 1.20 2013/06/05 03:39:23 tedu Exp $
+.\"
+.\" Copyright (c) 1990, 1991, 1993
+.\"     The Regents of the University of California.  All rights reserved.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\" 3. Neither the name of the University nor the names of its contributors
+.\"    may be used to endorse or promote products derived from this software
+.\"    without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.\"     @(#)strdup.3    8.1 (Berkeley) 6/9/93
+.\"
+.Dd $Mdocdate: June 5 2013 $
+.Dt STRDUP 3
+.Os
+.Sh NAME
+.Nm strdup ,
+.Nm strndup
+.Nd save a copy of a string
+.Sh SYNOPSIS
+.In string.h
+.Ft char *
+.Fn strdup "const char *s"
+.Ft char *
+.Fn strndup "const char *s" "size_t maxlen"
+.Sh DESCRIPTION
+The
+.Fn strdup
+function allocates sufficient memory for a copy of the string
+.Fa s ,
+does the copy, and returns a pointer to it.
+The pointer may subsequently be used as an argument to the function
+.Xr free 3 .
+.Pp
+The
+.Fn strndup
+function behaves similarly to
+.Nm strdup
+but only copies up to
+.Fa maxlen
+characters from
+.Fa s .
+The resulting string is always NUL-terminated.
+.Pp
+If insufficient memory is available,
+.Dv NULL
+is returned.
+.Sh EXAMPLES
+The following will point
+.Va p
+to an allocated area of memory containing the NUL-terminated string
+.Qq foobar :
+.Bd -literal -offset indent
+char *p;
+
+p = strdup("foobar");
+if (p == NULL)
+        err(1, NULL);
+.Ed
+.Sh ERRORS
+The
+.Fn strdup
+and
+.Fn strndup
+functions may fail and set the external variable
+.Va errno
+for any of the errors specified for the library function
+.Xr malloc 3 .
+.Sh SEE ALSO
+.Xr free 3 ,
+.Xr malloc 3 ,
+.Xr strcpy 3 ,
+.Xr strlcpy 3 ,
+.Xr strlen 3 ,
+.Xr wcsdup 3
+.Sh STANDARDS
+The
+.Fn strdup
+and
+.Fn strndup
+functions conform to
+.St -p1003.1-2008 .
+.Sh HISTORY
+The
+.Fn strdup
+function first appeared in
+.Bx 4.3 Reno .
+The
+.Fn strndup
+function appeared in glibc 2.0, was reimplemented for
+.Nx 4.0 ,
+and ported to
+.Ox 4.8 .
diff --git a/src/lib/libc/string/strdup.c b/src/lib/libc/string/strdup.c
new file mode 100644
index 0000000000..a6aa1e03b0
--- /dev/null
+++ b/src/lib/libc/string/strdup.c
@@ -0,0 +1,49 @@
+/*      $OpenBSD: strdup.c,v 1.6 2005/08/08 08:05:37 espie Exp $        */
+
+/*
+ * Copyright (c) 1988, 1993
+ *      The Regents of the University of California.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <sys/types.h>
+
+#include <stddef.h>
+#include <stdlib.h>
+#include <string.h>
+
+char *
+strdup(const char *str)
+{
+        size_t siz;
+        char *copy;
+
+        siz = strlen(str) + 1;
+        if ((copy = malloc(siz)) == NULL)
+                return(NULL);
+        (void)memcpy(copy, str, siz);
+        return(copy);
+}
diff --git a/src/lib/libc/string/strerror.3 b/src/lib/libc/string/strerror.3
new file mode 100644
index 0000000000..264ac39052
--- /dev/null
+++ b/src/lib/libc/string/strerror.3
@@ -0,0 +1,123 @@
+.\" Copyright (c) 1980, 1991 Regents of the University of California.
+.\" All rights reserved.
+.\"
+.\" This code is derived from software contributed to Berkeley by
+.\" the American National Standards Committee X3, on Information
+.\" Processing Systems.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\" 3. Neither the name of the University nor the names of its contributors
+.\"    may be used to endorse or promote products derived from this software
+.\"    without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.\"     $OpenBSD: strerror.3,v 1.13 2014/04/07 17:57:56 schwarze Exp $
+.\"
+.Dd $Mdocdate: April 7 2014 $
+.Dt STRERROR 3
+.Os
+.Sh NAME
+.Nm strerror ,
+.Nm strerror_r
+.Nd get error message string
+.Sh SYNOPSIS
+.In string.h
+.Ft char *
+.Fn strerror "int errnum"
+.Ft int
+.Fn strerror_r "int errnum" "char *strerrbuf" "size_t buflen"
+.Sh DESCRIPTION
+The
+.Fn strerror
+and
+.Fn strerror_r
+functions map the error number
+.Fa errnum
+to a language-dependent error message string.
+.Pp
+.Fn strerror
+returns a string containing a maximum of
+.Dv NL_TEXTMAX
+characters, including the trailing NUL.
+This string is not to be modified by the calling program,
+but may be overwritten by subsequent calls to
+.Fn strerror .
+.Pp
+.Fn strerror_r
+is a thread safe version of
+.Fn strerror
+that places the error message in the specified buffer
+.Fa strerrbuf .
+.Sh RETURN VALUES
+.Fn strerror
+returns a pointer to the error message string.
+If an error occurs, the error code is stored in
+.Va errno .
+.Pp
+.Fn strerror_r
+returns zero upon successful completion.
+If an error occurs, the error code is stored in
+.Va errno
+and the error code is returned.
+.Sh ERRORS
+.Fn strerror
+and
+.Fn strerror_r
+may fail if:
+.Bl -tag -width Er
+.It Bq Er EINVAL
+.Fa errnum
+is not a valid error number.
+The returned error string will consist of an error message that includes
+.Fa errnum .
+.El
+.Pp
+.Fn strerror_r
+may fail if:
+.Bl -tag -width Er
+.It Bq Er ERANGE
+The error message is larger than
+.Fa buflen
+characters.
+The message will be truncated to fit.
+.El
+.Sh SEE ALSO
+.Xr intro 2 ,
+.Xr perror 3 ,
+.Xr setlocale 3
+.Sh STANDARDS
+The
+.Fn strerror
+function conforms to
+.St -ansiC-99 .
+The
+.Fn strerror_r
+function conforms to
+.St -p1003.1-2008 .
+.Sh HISTORY
+The
+.Fn strerror
+function first appeared in
+.Bx 4.3 Reno .
+The
+.Fn strerror_r
+function first appeared in
+.Ox 3.3 .
diff --git a/src/lib/libc/string/strerror.c b/src/lib/libc/string/strerror.c
new file mode 100644
index 0000000000..13996f08e9
--- /dev/null
+++ b/src/lib/libc/string/strerror.c
@@ -0,0 +1,41 @@
+/*      $OpenBSD: strerror.c,v 1.7 2005/08/08 08:05:37 espie Exp $ */
+/*
+ * Copyright (c) 1988 Regents of the University of California.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <string.h>
+#include <limits.h>
+
+char *
+strerror(int num)
+{
+        static char buf[NL_TEXTMAX];
+
+        (void)strerror_r(num, buf, sizeof(buf));
+        return (buf);
+}
diff --git a/src/lib/libc/string/strerror_r.c b/src/lib/libc/string/strerror_r.c
new file mode 100644
index 0000000000..b85136055b
--- /dev/null
+++ b/src/lib/libc/string/strerror_r.c
@@ -0,0 +1,137 @@
+/* $OpenBSD: strerror_r.c,v 1.8 2013/06/01 21:26:18 stsp Exp $ */
+/* Public Domain <marc@snafu.org> */
+
+#ifdef NLS
+#define catclose        _catclose
+#define catgets         _catgets
+#define catopen         _catopen
+#include <nl_types.h>
+#endif
+
+#define sys_errlist     _sys_errlist
+#define sys_nerr        _sys_nerr
+#define sys_siglist     _sys_siglist
+
+#include <errno.h>
+#include <limits.h>
+#include <signal.h>
+#include <string.h>
+
+static size_t
+__digits10(unsigned int num)
+{
+        size_t i = 0;
+
+        do {
+                num /= 10;
+                i++;
+        } while (num != 0);
+
+        return i;
+}
+
+static int
+__itoa(int num, int sign, char *buffer, size_t start, size_t end)
+{
+        size_t pos;
+        unsigned int a;
+        int neg;
+
+        if (sign && num < 0) {
+                a = -num;
+                neg = 1;
+        }
+        else {
+                a = num;
+                neg = 0;
+        }
+
+        pos = start + __digits10(a);
+        if (neg)
+            pos++;
+
+        if (pos < end)
+                buffer[pos] = '\0';
+        else
+                return ERANGE;
+        pos--;
+        do {
+                buffer[pos] = (a % 10) + '0';
+                pos--;
+                a /= 10;
+        } while (a != 0);
+        if (neg)
+                buffer[pos] = '-';
+        return 0;
+}
+
+
+static int
+__num2string(int num, int sign, int setid, char *buf, size_t buflen,
+    char * list[], size_t max, const char *def)
+{
+        int ret = 0;
+        size_t len;
+
+#ifdef NLS
+        nl_catd catd;
+        catd = catopen("libc", NL_CAT_LOCALE);
+#endif
+
+        if (0 <= num && num < max) {
+#ifdef NLS
+                len = strlcpy(buf, catgets(catd, setid, num, list[num]),
+                    buflen);
+#else
+                len = strlcpy(buf, list[num], buflen);
+#endif
+                if (len >= buflen)
+                        ret = ERANGE;
+        } else {
+#ifdef NLS
+                len = strlcpy(buf, catgets(catd, setid, 0xffff, def), buflen);
+#else
+                len = strlcpy(buf, def, buflen);
+#endif
+                if (len >= buflen)
+                        ret = ERANGE;
+                else {
+                        ret = __itoa(num, sign, buf, len, buflen);
+                        if (ret == 0)
+                                ret = EINVAL;
+                }
+        }
+
+#ifdef NLS
+        catclose(catd);
+#endif
+
+        return ret;
+}
+
+#define UPREFIX "Unknown error: "
+
+int
+strerror_r(int errnum, char *strerrbuf, size_t buflen)
+{
+        int save_errno;
+        int ret_errno;
+
+        save_errno = errno;
+
+        ret_errno = __num2string(errnum, 1, 1, strerrbuf, buflen,
+            sys_errlist, sys_nerr, UPREFIX);
+
+        errno = ret_errno ? ret_errno : save_errno;
+        return (ret_errno);
+}
+
+#define USIGPREFIX "Unknown signal: "
+
+char *
+__strsignal(int num, char *buf)
+{
+        __num2string(num, 0, 2, buf, NL_TEXTMAX, (char **)sys_siglist, NSIG,
+            USIGPREFIX);
+        return buf;
+}
diff --git a/src/lib/libc/string/string.3 b/src/lib/libc/string/string.3
new file mode 100644
index 0000000000..2373d1fb9c
--- /dev/null
+++ b/src/lib/libc/string/string.3
@@ -0,0 +1,136 @@
+.\" Copyright (c) 1990, 1991 The Regents of the University of California.
+.\" All rights reserved.
+.\"
+.\" This code is derived from software contributed to Berkeley by
+.\" Chris Torek.
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\" 3. Neither the name of the University nor the names of its contributors
+.\"    may be used to endorse or promote products derived from this software
+.\"    without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.\"     $OpenBSD: string.3,v 1.13 2013/06/05 03:39:23 tedu Exp $
+.\"
+.Dd $Mdocdate: June 5 2013 $
+.Dt STRING 3
+.Os
+.Sh NAME
+.Nm string
+.Nd string specific functions
+.Sh SYNOPSIS
+.In string.h
+.Ft char *
+.Fn strcat "char *s" "const char *append"
+.Ft char *
+.Fn strlcat "char *s" "const char *append" "size_t size"
+.Ft char *
+.Fn strncat "char *s" "const char *append" "size_t count"
+.Ft char *
+.Fn strchr "const char *s" "int c"
+.Ft char *
+.Fn strrchr "const char *s" "int c"
+.Ft int
+.Fn strcmp "const char *s1" "const char *s2"
+.Ft int
+.Fn strncmp "const char *s1" "const char *s2" "size_t count"
+.Ft int
+.Fn strcasecmp "const char *s1" "const char *s2"
+.Ft int
+.Fn strncasecmp "const char *s1" "const char *s2" "size_t count"
+.Ft char *
+.Fn strcpy "char *dst" "const char *src"
+.Ft char *
+.Fn strlcpy "char *dst" "const char *src" "size_t size"
+.Ft char *
+.Fn strncpy "char *dst" "const char *src" "size_t count"
+.Ft char *
+.Fn strerror "int errno"
+.Ft size_t
+.Fn strlen "const char *s"
+.Ft char *
+.Fn strpbrk "const char *s" "const char *charset"
+.Ft char *
+.Fn strsep "char **stringp" "const char *delim"
+.Ft size_t
+.Fn strspn "const char *s" "const char *charset"
+.Ft size_t
+.Fn strcspn "const char *s" "const char *charset"
+.Ft char *
+.Fn strstr "const char *big" "const char *little"
+.Ft char *
+.Fn strtok "char *s" "const char *delim"
+.Ft char *
+.Fn index "const char *s" "int c"
+.Ft char *
+.Fn rindex "const char *s" "int c"
+.Sh DESCRIPTION
+The string functions
+manipulate strings terminated by a
+NUL byte.
+.Pp
+See the specific manual pages for more information.
+For manipulating variable length generic objects as byte
+strings (without the NUL-byte check), see
+.Xr bstring 3 .
+.Pp
+Except as noted in their specific manual pages,
+the string functions do not test the destination
+for size limitations.
+.Sh SEE ALSO
+.Xr bstring 3 ,
+.Xr index 3 ,
+.Xr rindex 3 ,
+.Xr strcasecmp 3 ,
+.Xr strcat 3 ,
+.Xr strchr 3 ,
+.Xr strcmp 3 ,
+.Xr strcpy 3 ,
+.Xr strcspn 3 ,
+.Xr strerror 3 ,
+.Xr strlcat 3 ,
+.Xr strlcpy 3 ,
+.Xr strlen 3 ,
+.Xr strpbrk 3 ,
+.Xr strrchr 3 ,
+.Xr strsep 3 ,
+.Xr strspn 3 ,
+.Xr strstr 3 ,
+.Xr strtok 3
+.Sh STANDARDS
+The
+.Fn strcat ,
+.Fn strncat ,
+.Fn strchr ,
+.Fn strrchr ,
+.Fn strcmp ,
+.Fn strncmp ,
+.Fn strcpy ,
+.Fn strncpy ,
+.Fn strerror ,
+.Fn strlen ,
+.Fn strpbrk ,
+.Fn strspn ,
+.Fn strcspn ,
+.Fn strstr ,
+and
+.Fn strtok
+functions conform to
+.St -ansiC .
diff --git a/src/lib/libc/string/strlcat.c b/src/lib/libc/string/strlcat.c
new file mode 100644
index 0000000000..ceab094411
--- /dev/null
+++ b/src/lib/libc/string/strlcat.c
@@ -0,0 +1,55 @@
+/*      $OpenBSD: strlcat.c,v 1.13 2005/08/08 08:05:37 espie Exp $      */
+
+/*
+ * Copyright (c) 1998 Todd C. Miller <Todd.Miller@courtesan.com>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include <sys/types.h>
+#include <string.h>
+
+/*
+ * Appends src to string dst of size siz (unlike strncat, siz is the
+ * full size of dst, not space left).  At most siz-1 characters
+ * will be copied.  Always NUL terminates (unless siz <= strlen(dst)).
+ * Returns strlen(src) + MIN(siz, strlen(initial dst)).
+ * If retval >= siz, truncation occurred.
+ */
+size_t
+strlcat(char *dst, const char *src, size_t siz)
+{
+        char *d = dst;
+        const char *s = src;
+        size_t n = siz;
+        size_t dlen;
+
+        /* Find the end of dst and adjust bytes left but don't go past end */
+        while (n-- != 0 && *d != '\0')
+                d++;
+        dlen = d - dst;
+        n = siz - dlen;
+
+        if (n == 0)
+                return(dlen + strlen(s));
+        while (*s != '\0') {
+                if (n != 1) {
+                        *d++ = *s;
+                        n--;
+                }
+                s++;
+        }
+        *d = '\0';
+
+        return(dlen + (s - src));       /* count does not include NUL */
+}
diff --git a/src/lib/libc/string/strlcpy.3 b/src/lib/libc/string/strlcpy.3
new file mode 100644
index 0000000000..044c959c0c
--- /dev/null
+++ b/src/lib/libc/string/strlcpy.3
@@ -0,0 +1,188 @@
+.\"     $OpenBSD: strlcpy.3,v 1.26 2013/09/30 12:02:35 millert Exp $
+.\"
+.\" Copyright (c) 1998, 2000 Todd C. Miller <Todd.Miller@courtesan.com>
+.\"
+.\" Permission to use, copy, modify, and distribute this software for any
+.\" purpose with or without fee is hereby granted, provided that the above
+.\" copyright notice and this permission notice appear in all copies.
+.\"
+.\" THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+.\" WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+.\" MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+.\" ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+.\" WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+.\" ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+.\" OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+.\"
+.Dd $Mdocdate: September 30 2013 $
+.Dt STRLCPY 3
+.Os
+.Sh NAME
+.Nm strlcpy ,
+.Nm strlcat
+.Nd size-bounded string copying and concatenation
+.Sh SYNOPSIS
+.In string.h
+.Ft size_t
+.Fn strlcpy "char *dst" "const char *src" "size_t dstsize"
+.Ft size_t
+.Fn strlcat "char *dst" "const char *src" "size_t dstsize"
+.Sh DESCRIPTION
+The
+.Fn strlcpy
+and
+.Fn strlcat
+functions copy and concatenate strings with the
+same input parameters and output result as
+.Xr snprintf 3 .
+They are designed to be safer, more consistent, and less error
+prone replacements for the easily misused functions
+.Xr strncpy 3
+and
+.Xr strncat 3 .
+.Pp
+.Fn strlcpy
+and
+.Fn strlcat
+take the full size of the destination buffer and guarantee
+NUL-termination if there is room.
+Note that room for the NUL should be included in
+.Fa dstsize .
+.Pp
+.Fn strlcpy
+copies up to
+.Fa dstsize
+\- 1 characters from the string
+.Fa src
+to
+.Fa dst ,
+NUL-terminating the result if
+.Fa dstsize
+is not 0.
+.Pp
+.Fn strlcat
+appends string
+.Fa src
+to the end of
+.Fa dst .
+It will append at most
+.Fa dstsize
+\- strlen(dst) \- 1 characters.
+It will then NUL-terminate, unless
+.Fa dstsize
+is 0 or the original
+.Fa dst
+string was longer than
+.Fa dstsize
+(in practice this should not happen
+as it means that either
+.Fa dstsize
+is incorrect or that
+.Fa dst
+is not a proper string).
+.Pp
+If the
+.Fa src
+and
+.Fa dst
+strings overlap, the behavior is undefined.
+.Sh RETURN VALUES
+Besides quibbles over the return type
+.Pf ( Va size_t
+versus
+.Va int )
+and signal handler safety
+.Pf ( Xr snprintf 3
+is not entirely safe on some systems), the
+following two are equivalent:
+.Bd -literal -offset indent
+n = strlcpy(dst, src, len);
+n = snprintf(dst, len, "%s", src);
+.Ed
+.Pp
+Like
+.Xr snprintf 3 ,
+the
+.Fn strlcpy
+and
+.Fn strlcat
+functions return the total length of the string they tried to create.
+For
+.Fn strlcpy
+that means the length of
+.Fa src .
+For
+.Fn strlcat
+that means the initial length of
+.Fa dst
+plus
+the length of
+.Fa src .
+.Pp
+If the return value is
+.Cm >=
+.Va dstsize ,
+the output string has been truncated.
+It is the caller's responsibility to handle this.
+.Sh EXAMPLES
+The following code fragment illustrates the simple case:
+.Bd -literal -offset indent
+char *s, *p, buf[BUFSIZ];
+
+\&...
+
+(void)strlcpy(buf, s, sizeof(buf));
+(void)strlcat(buf, p, sizeof(buf));
+.Ed
+.Pp
+To detect truncation, perhaps while building a pathname, something
+like the following might be used:
+.Bd -literal -offset indent
+char *dir, *file, pname[PATH_MAX];
+
+\&...
+
+if (strlcpy(pname, dir, sizeof(pname)) >= sizeof(pname))
+        goto toolong;
+if (strlcat(pname, file, sizeof(pname)) >= sizeof(pname))
+        goto toolong;
+.Ed
+.Pp
+Since it is known how many characters were copied the first time, things
+can be sped up a bit by using a copy instead of an append:
+.Bd -literal -offset indent
+char *dir, *file, pname[PATH_MAX];
+size_t n;
+
+\&...
+
+n = strlcpy(pname, dir, sizeof(pname));
+if (n >= sizeof(pname))
+        goto toolong;
+if (strlcpy(pname + n, file, sizeof(pname) - n) >= sizeof(pname) - n)
+        goto toolong;
+.Ed
+.Pp
+However, one may question the validity of such optimizations, as they
+defeat the whole purpose of
+.Fn strlcpy
+and
+.Fn strlcat .
+As a matter of fact, the first version of this manual page got it wrong.
+.Sh SEE ALSO
+.Xr snprintf 3 ,
+.Xr strncat 3 ,
+.Xr strncpy 3 ,
+.Xr wcslcpy 3
+.Sh HISTORY
+.Fn strlcpy
+and
+.Fn strlcat
+first appeared in
+.Ox 2.4 .
+.Sh AUTHORS
+.Fn strlcpy
+and
+.Fn strlcat
+were created by
+.An Todd C. Miller Aq Mt Todd.Miller@courtesan.com .
diff --git a/src/lib/libc/string/strlcpy.c b/src/lib/libc/string/strlcpy.c
new file mode 100644
index 0000000000..d32b6590f1
--- /dev/null
+++ b/src/lib/libc/string/strlcpy.c
@@ -0,0 +1,51 @@
+/*      $OpenBSD: strlcpy.c,v 1.11 2006/05/05 15:27:38 millert Exp $    */
+
+/*
+ * Copyright (c) 1998 Todd C. Miller <Todd.Miller@courtesan.com>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include <sys/types.h>
+#include <string.h>
+
+/*
+ * Copy src to string dst of size siz.  At most siz-1 characters
+ * will be copied.  Always NUL terminates (unless siz == 0).
+ * Returns strlen(src); if retval >= siz, truncation occurred.
+ */
+size_t
+strlcpy(char *dst, const char *src, size_t siz)
+{
+        char *d = dst;
+        const char *s = src;
+        size_t n = siz;
+
+        /* Copy as many bytes as will fit */
+        if (n != 0) {
+                while (--n != 0) {
+                        if ((*d++ = *s++) == '\0')
+                                break;
+                }
+        }
+
+        /* Not enough room in dst, add NUL and traverse rest of src */
+        if (n == 0) {
+                if (siz != 0)
+                        *d = '\0';              /* NUL-terminate dst */
+                while (*s++)
+                        ;
+        }
+
+        return(s - src - 1);    /* count does not include NUL */
+}
diff --git a/src/lib/libc/string/strlen.3 b/src/lib/libc/string/strlen.3
new file mode 100644
index 0000000000..5428627abb
--- /dev/null
+++ b/src/lib/libc/string/strlen.3
@@ -0,0 +1,105 @@
+.\"     $OpenBSD: strlen.3,v 1.12 2013/07/17 05:42:11 schwarze Exp $
+.\"
+.\" Copyright (c) 1990, 1991 The Regents of the University of California.
+.\" All rights reserved.
+.\"
+.\" This code is derived from software contributed to Berkeley by
+.\" Chris Torek and the American National Standards Committee X3,
+.\" on Information Processing Systems.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\" 3. Neither the name of the University nor the names of its contributors
+.\"    may be used to endorse or promote products derived from this software
+.\"    without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.Dd $Mdocdate: July 17 2013 $
+.Dt STRLEN 3
+.Os
+.Sh NAME
+.Nm strlen ,
+.Nm strnlen
+.Nd find length of a string
+.Sh SYNOPSIS
+.In string.h
+.Ft size_t
+.Fn strlen "const char *s"
+.Ft size_t
+.Fn strnlen "const char *s" "size_t maxlen"
+.Sh DESCRIPTION
+The
+.Fn strlen
+function computes the length of the string
+.Fa s .
+.Pp
+The
+.Fn strnlen
+function computes the length of the string
+.Fa s ,
+up to
+.Fa maxlen
+characters.
+The
+.Fn strnlen
+function will never attempt to address more than
+.Fa maxlen
+characters, making it suitable for use with character arrays that are
+not guaranteed to be NUL-terminated.
+.Sh RETURN VALUES
+The
+.Fn strlen
+function returns the number of characters that precede the terminating
+.Tn NUL
+character.
+.Pp
+The
+.Fn strnlen
+function returns the number of characters that precede the terminating
+.Tn NUL
+or
+.Fa maxlen ,
+whichever is smaller.
+.Sh SEE ALSO
+.Xr string 3 ,
+.Xr wcslen 3
+.Sh STANDARDS
+The
+.Fn strlen
+function conforms to
+.St -ansiC .
+.Pp
+The
+.Fn strlen
+and
+.Fn strnlen
+functions conform to
+.St -p1003.1-2008 .
+.Sh HISTORY
+The
+.Fn strlen
+function first appeared in the Programmer's Workbench (PWB/UNIX)
+and was ported to
+.At v7 .
+The
+.Fn strnlen
+function appeared in glibc 2.0
+and was reimplemented for
+.Ox 4.8 .
diff --git a/src/lib/libc/string/strlen.c b/src/lib/libc/string/strlen.c
new file mode 100644
index 0000000000..12d9ec4dad
--- /dev/null
+++ b/src/lib/libc/string/strlen.c
@@ -0,0 +1,47 @@
+/*      $OpenBSD: strlen.c,v 1.7 2005/08/08 08:05:37 espie Exp $        */
+
+/*-
+ * Copyright (c) 1990, 1993
+ *      The Regents of the University of California.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#if !defined(_KERNEL) && !defined(_STANDALONE)
+#include <string.h>
+#else
+#include <lib/libkern/libkern.h>
+#endif
+
+size_t
+strlen(const char *str)
+{
+        const char *s;
+
+        for (s = str; *s; ++s)
+                ;
+        return (s - str);
+}
+
diff --git a/src/lib/libc/string/strmode.3 b/src/lib/libc/string/strmode.3
new file mode 100644
index 0000000000..bebda2ca1c
--- /dev/null
+++ b/src/lib/libc/string/strmode.3
@@ -0,0 +1,157 @@
+.\" $OpenBSD: strmode.3,v 1.16 2013/06/05 03:39:23 tedu Exp $
+.\"
+.\" Copyright (c) 1990, 1991, 1993
+.\"     The Regents of the University of California.  All rights reserved.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\" 3. Neither the name of the University nor the names of its contributors
+.\"    may be used to endorse or promote products derived from this software
+.\"    without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.\"     @(#)strmode.3   8.3 (Berkeley) 7/28/94
+.\"
+.Dd $Mdocdate: June 5 2013 $
+.Dt STRMODE 3
+.Os
+.Sh NAME
+.Nm strmode
+.Nd convert inode status information into a symbolic string
+.Sh SYNOPSIS
+.In string.h
+.Ft void
+.Fn strmode "mode_t mode" "char *bp"
+.Sh DESCRIPTION
+The
+.Fn strmode
+function converts a file
+.Fa mode
+(the type and permission information associated with an inode, see
+.Xr stat 2 )
+into a symbolic string which is stored in the location referenced by
+.Fa bp .
+This stored string is eleven characters in length plus a trailing NUL byte.
+.Pp
+The first character is the inode type, and will be one of the following:
+.Pp
+.Bl -tag -width flag -offset indent -compact
+.It \-
+regular file
+.It b
+block special
+.It c
+character special
+.It d
+directory
+.It l
+symbolic link
+.It p
+FIFO
+.It s
+socket
+.It \&?
+unknown inode type
+.El
+.Pp
+The next nine characters encode three sets of permissions, in three
+characters each.
+The first three characters are the permissions for the owner of the
+file, the second three for the group the file belongs to, and the
+third for the
+.Dq other ,
+or default, set of users.
+.Pp
+Permission checking is done as specifically as possible.
+If read permission is denied to the owner of a file in the first set
+of permissions, the owner of the file will not be able to read the file.
+This is true even if the owner is in the file's group and the group
+permissions allow reading or the
+.Dq other
+permissions allow reading.
+.Pp
+If the first character of the three character set is an
+.Sq r ,
+the file is readable for that set of users; if a dash
+.Pq Ql - ,
+it is not readable.
+.Pp
+If the second character of the three character set is a
+.Sq w ,
+the file is writable for that set of users; if a dash
+.Pq Ql - ,
+it is not writable.
+.Pp
+The third character is the first of the following characters that apply:
+.Bl -tag -width xxxx
+.It S
+If the character is part of the owner permissions and the file is not
+executable or the directory is not searchable by the owner, and the
+set-user-ID bit is set.
+.It S
+If the character is part of the group permissions and the file is not
+executable or the directory is not searchable by the group, and the
+set-group-ID bit is set.
+.It T
+If the character is part of the other permissions and the file is not
+executable or the directory is not searchable by others, and the
+.Dq sticky
+.Pq Dv S_ISVTX
+bit is set.
+.It s
+If the character is part of the owner permissions and the file is
+executable or the directory searchable by the owner, and the set-user-ID
+bit is set.
+.It s
+If the character is part of the group permissions and the file is
+executable or the directory searchable by the group, and the set-group-ID
+bit is set.
+.It t
+If the character is part of the other permissions and the file is
+executable or the directory searchable by others, and the
+.Dq sticky
+.Pq Dv S_ISVTX
+bit is set.
+.It x
+The file is executable or the directory is searchable.
+.It \-
+None of the above apply.
+.El
+.Pp
+The last character is a plus sign
+.Pq Ql +
+if there are any alternate
+or additional access control methods associated with the inode, otherwise
+it will be a space.
+.Sh RETURN VALUES
+The
+.Fn strmode
+function always returns 0.
+.Sh SEE ALSO
+.Xr chmod 1 ,
+.Xr find 1 ,
+.Xr stat 2 ,
+.Xr getmode 3 ,
+.Xr setmode 3
+.Sh HISTORY
+The
+.Fn strmode
+function first appeared in
+.Bx 4.3 Reno .
diff --git a/src/lib/libc/string/strmode.c b/src/lib/libc/string/strmode.c
new file mode 100644
index 0000000000..6f0fa34ed8
--- /dev/null
+++ b/src/lib/libc/string/strmode.c
@@ -0,0 +1,140 @@
+/*      $OpenBSD: strmode.c,v 1.7 2005/08/08 08:05:37 espie Exp $ */
+/*-
+ * Copyright (c) 1990 The Regents of the University of California.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <string.h>
+
+/* XXX mode should be mode_t */
+
+void
+strmode(int mode, char *p)
+{
+         /* print type */
+        switch (mode & S_IFMT) {
+        case S_IFDIR:                   /* directory */
+                *p++ = 'd';
+                break;
+        case S_IFCHR:                   /* character special */
+                *p++ = 'c';
+                break;
+        case S_IFBLK:                   /* block special */
+                *p++ = 'b';
+                break;
+        case S_IFREG:                   /* regular */
+                *p++ = '-';
+                break;
+        case S_IFLNK:                   /* symbolic link */
+                *p++ = 'l';
+                break;
+        case S_IFSOCK:                  /* socket */
+                *p++ = 's';
+                break;
+#ifdef S_IFIFO
+        case S_IFIFO:                   /* fifo */
+                *p++ = 'p';
+                break;
+#endif
+        default:                        /* unknown */
+                *p++ = '?';
+                break;
+        }
+        /* usr */
+        if (mode & S_IRUSR)
+                *p++ = 'r';
+        else
+                *p++ = '-';
+        if (mode & S_IWUSR)
+                *p++ = 'w';
+        else
+                *p++ = '-';
+        switch (mode & (S_IXUSR | S_ISUID)) {
+        case 0:
+                *p++ = '-';
+                break;
+        case S_IXUSR:
+                *p++ = 'x';
+                break;
+        case S_ISUID:
+                *p++ = 'S';
+                break;
+        case S_IXUSR | S_ISUID:
+                *p++ = 's';
+                break;
+        }
+        /* group */
+        if (mode & S_IRGRP)
+                *p++ = 'r';
+        else
+                *p++ = '-';
+        if (mode & S_IWGRP)
+                *p++ = 'w';
+        else
+                *p++ = '-';
+        switch (mode & (S_IXGRP | S_ISGID)) {
+        case 0:
+                *p++ = '-';
+                break;
+        case S_IXGRP:
+                *p++ = 'x';
+                break;
+        case S_ISGID:
+                *p++ = 'S';
+                break;
+        case S_IXGRP | S_ISGID:
+                *p++ = 's';
+                break;
+        }
+        /* other */
+        if (mode & S_IROTH)
+                *p++ = 'r';
+        else
+                *p++ = '-';
+        if (mode & S_IWOTH)
+                *p++ = 'w';
+        else
+                *p++ = '-';
+        switch (mode & (S_IXOTH | S_ISVTX)) {
+        case 0:
+                *p++ = '-';
+                break;
+        case S_IXOTH:
+                *p++ = 'x';
+                break;
+        case S_ISVTX:
+                *p++ = 'T';
+                break;
+        case S_IXOTH | S_ISVTX:
+                *p++ = 't';
+                break;
+        }
+        *p++ = ' ';             /* will be a '+' if ACL's implemented */
+        *p = '\0';
+}
diff --git a/src/lib/libc/string/strncat.3 b/src/lib/libc/string/strncat.3
new file mode 100644
index 0000000000..bd15ef10fa
--- /dev/null
+++ b/src/lib/libc/string/strncat.3
@@ -0,0 +1,128 @@
+.\"     $OpenBSD: strncat.3,v 1.2 2013/12/19 22:00:58 jmc Exp $
+.\"
+.\" Copyright (c) 1990, 1991 The Regents of the University of California.
+.\" All rights reserved.
+.\"
+.\" This code is derived from software contributed to Berkeley by
+.\" Chris Torek and the American National Standards Committee X3,
+.\" on Information Processing Systems.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\" 3. Neither the name of the University nor the names of its contributors
+.\"    may be used to endorse or promote products derived from this software
+.\"    without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.Dd $Mdocdate: December 19 2013 $
+.Dt STRNCAT 3
+.Os
+.Sh NAME
+.Nm strncat
+.Nd concatenate a string with part of another
+.Sh SYNOPSIS
+.In string.h
+.Ft char *
+.Fn strncat "char *s" "const char *append" "size_t count"
+.Sh DESCRIPTION
+The
+.Fn strncat
+function appends not more than
+.Fa count
+characters of the NUL-terminated string
+.Fa append
+to the end of the NUL-terminated string
+.Fa s .
+Space for the terminating
+.Ql \e0
+should not be included in
+.Fa count .
+The string
+.Fa s
+must have sufficient space to hold the result.
+.Sh RETURN VALUES
+The
+.Fn strncat
+function returns the pointer
+.Fa s .
+.Sh EXAMPLES
+The following appends
+.Dq Li abc
+to
+.Va chararray :
+.Bd -literal -offset indent
+char *letters = "abcdefghi";
+
+(void)strncat(chararray, letters, 3);
+.Ed
+.Pp
+The following example shows how to use
+.Fn strncat
+safely in conjunction with
+.Xr strncpy 3 .
+.Bd -literal -offset indent
+char buf[BUFSIZ];
+char *input, *suffix;
+
+(void)strncpy(buf, input, sizeof(buf) - 1);
+buf[sizeof(buf) - 1] = '\e0';
+(void)strncat(buf, suffix, sizeof(buf) - 1 - strlen(buf));
+.Ed
+.Pp
+The above will copy as many characters from
+.Va input
+to
+.Va buf
+as will fit.
+It then appends as many characters from
+.Va suffix
+as will fit (or none
+if there is no space).
+For operations like this, the
+.Xr strlcpy 3
+and
+.Xr strlcat 3
+functions are a better choice, as shown below.
+.Bd -literal -offset indent
+(void)strlcpy(buf, input, sizeof(buf));
+(void)strlcat(buf, suffix, sizeof(buf));
+.Ed
+.Sh SEE ALSO
+.Xr bcopy 3 ,
+.Xr memccpy 3 ,
+.Xr memcpy 3 ,
+.Xr memmove 3 ,
+.Xr strcat 3 ,
+.Xr strcpy 3 ,
+.Xr strlcpy 3 ,
+.Xr wcscat 3 ,
+.Xr wcslcpy 3
+.Sh STANDARDS
+The
+.Fn strcat
+and
+.Fn strncat
+functions conform to
+.St -ansiC .
+.Sh HISTORY
+The
+.Fn strncat
+function first appeared in
+.At v7 .
diff --git a/src/lib/libc/string/strncat.c b/src/lib/libc/string/strncat.c
new file mode 100644
index 0000000000..c4df4f2fad
--- /dev/null
+++ b/src/lib/libc/string/strncat.c
@@ -0,0 +1,57 @@
+/*      $OpenBSD: strncat.c,v 1.5 2005/08/08 08:05:37 espie Exp $ */
+/*-
+ * Copyright (c) 1990 The Regents of the University of California.
+ * All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Chris Torek.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <string.h>
+
+/*
+ * Concatenate src on the end of dst.  At most strlen(dst)+n+1 bytes
+ * are written at dst (at most n+1 bytes being appended).  Return dst.
+ */
+char *
+strncat(char *dst, const char *src, size_t n)
+{
+        if (n != 0) {
+                char *d = dst;
+                const char *s = src;
+
+                while (*d != 0)
+                        d++;
+                do {
+                        if ((*d = *s++) == 0)
+                                break;
+                        d++;
+                } while (--n != 0);
+                *d = 0;
+        }
+        return (dst);
+}
diff --git a/src/lib/libc/string/strncmp.c b/src/lib/libc/string/strncmp.c
new file mode 100644
index 0000000000..0aea80d7d9
--- /dev/null
+++ b/src/lib/libc/string/strncmp.c
@@ -0,0 +1,51 @@
+/*      $OpenBSD: strncmp.c,v 1.7 2005/08/08 08:05:37 espie Exp $       */
+
+/*
+ * Copyright (c) 1989 The Regents of the University of California.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#if !defined(_KERNEL) && !defined(_STANDALONE)
+#include <string.h>
+#else
+#include <lib/libkern/libkern.h>
+#endif
+
+int
+strncmp(const char *s1, const char *s2, size_t n)
+{
+
+        if (n == 0)
+                return (0);
+        do {
+                if (*s1 != *s2++)
+                        return (*(unsigned char *)s1 - *(unsigned char *)--s2);
+                if (*s1++ == 0)
+                        break;
+        } while (--n != 0);
+        return (0);
+}
diff --git a/src/lib/libc/string/strncpy.3 b/src/lib/libc/string/strncpy.3
new file mode 100644
index 0000000000..dd8ddb86fc
--- /dev/null
+++ b/src/lib/libc/string/strncpy.3
@@ -0,0 +1,153 @@
+.\"     $OpenBSD: strncpy.3,v 1.1 2013/12/19 20:52:37 millert Exp $
+.\"
+.\" Copyright (c) 1990, 1991 The Regents of the University of California.
+.\" All rights reserved.
+.\"
+.\" This code is derived from software contributed to Berkeley by
+.\" Chris Torek and the American National Standards Committee X3,
+.\" on Information Processing Systems.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\" 3. Neither the name of the University nor the names of its contributors
+.\"    may be used to endorse or promote products derived from this software
+.\"    without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.Dd $Mdocdate: December 19 2013 $
+.Dt STRNCPY 3
+.Os
+.Sh NAME
+.Nm strncpy
+.Nd copy part of a string to another
+.Sh SYNOPSIS
+.In string.h
+.Ft char *
+.Fn strncpy "char *dst" "const char *src" "size_t len"
+.Sh DESCRIPTION
+The
+.Fn strncpy
+function copies not more than
+.Fa len
+characters from the string
+.Fa src
+to
+.Fa dst .
+If
+.Fa src
+is less than
+.Fa len
+characters long,
+it appends
+.Ql \e0
+characters for the rest of
+.Fa len .
+If the length of
+.Fa src
+is greater than or equal to
+.Fa len ,
+.Fa dst
+will
+.Em not
+be NUL-terminated.
+.Pp
+If the
+.Fa src
+and
+.Fa dst
+strings overlap, the behavior is undefined.
+.Sh RETURN VALUES
+The
+.Fn strncpy
+function returns
+.Fa dst .
+.Sh EXAMPLES
+The following sets
+.Va chararray
+to
+.Dq abc\e0\e0\e0 :
+.Bd -literal -offset indent
+(void)strncpy(chararray, "abc", 6);
+.Ed
+.Pp
+The following sets
+.Va chararray
+to
+.Dq abcdef
+and does
+.Em not
+NUL terminate
+.Va chararray
+because the length of the source string is greater than or equal to the
+length parameter.
+.Fn strncpy
+.Em only
+NUL terminates the destination string when the length of the source
+string is less than the length parameter.
+.Bd -literal -offset indent
+(void)strncpy(chararray, "abcdefgh", 6);
+.Ed
+.Pp
+The following copies as many characters from
+.Va input
+to
+.Va buf
+as will fit and NUL terminates the result.
+Because
+.Fn strncpy
+does
+.Em not
+guarantee to NUL terminate the string itself, it must be done by hand.
+.Bd -literal -offset indent
+char buf[BUFSIZ];
+
+(void)strncpy(buf, input, sizeof(buf) - 1);
+buf[sizeof(buf) - 1] = '\e0';
+.Ed
+.Pp
+Note that
+.Xr strlcpy 3
+is a better choice for this kind of operation.
+The equivalent using
+.Xr strlcpy 3
+is simply:
+.Bd -literal -offset indent
+(void)strlcpy(buf, input, sizeof(buf));
+.Ed
+.Sh SEE ALSO
+.Xr bcopy 3 ,
+.Xr memccpy 3 ,
+.Xr memcpy 3 ,
+.Xr memmove 3 ,
+.Xr strcat 3 ,
+.Xr strlcpy 3 ,
+.Xr strncat 3 ,
+.Xr wcscpy 3 ,
+.Xr wcslcpy 3
+.Sh STANDARDS
+The
+.Fn strncpy
+function conforms to
+.St -ansiC .
+.Sh HISTORY
+The
+.Fn strncpy
+function first appeared in
+.At v7 .
diff --git a/src/lib/libc/string/strncpy.c b/src/lib/libc/string/strncpy.c
new file mode 100644
index 0000000000..4426cbe2e3
--- /dev/null
+++ b/src/lib/libc/string/strncpy.c
@@ -0,0 +1,62 @@
+/*      $OpenBSD: strncpy.c,v 1.6 2005/08/08 08:05:37 espie Exp $       */
+
+/*-
+ * Copyright (c) 1990 The Regents of the University of California.
+ * All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Chris Torek.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#if !defined(_KERNEL) && !defined(_STANDALONE)
+#include <string.h>
+#else
+#include <lib/libkern/libkern.h>
+#endif
+
+/*
+ * Copy src to dst, truncating or null-padding to always copy n bytes.
+ * Return dst.
+ */
+char *
+strncpy(char *dst, const char *src, size_t n)
+{
+        if (n != 0) {
+                char *d = dst;
+                const char *s = src;
+
+                do {
+                        if ((*d++ = *s++) == 0) {
+                                /* NUL pad the remaining n-1 bytes */
+                                while (--n != 0)
+                                        *d++ = 0;
+                                break;
+                        }
+                } while (--n != 0);
+        }
+        return (dst);
+}
diff --git a/src/lib/libc/string/strndup.c b/src/lib/libc/string/strndup.c
new file mode 100644
index 0000000000..27701ac555
--- /dev/null
+++ b/src/lib/libc/string/strndup.c
@@ -0,0 +1,39 @@
+/*      $OpenBSD: strndup.c,v 1.1 2010/05/18 22:24:55 tedu Exp $        */
+
+/*
+ * Copyright (c) 2010 Todd C. Miller <Todd.Miller@courtesan.com>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include <sys/types.h>
+
+#include <stddef.h>
+#include <stdlib.h>
+#include <string.h>
+
+char *
+strndup(const char *str, size_t maxlen)
+{
+        char *copy;
+        size_t len;
+
+        len = strnlen(str, maxlen);
+        copy = malloc(len + 1);
+        if (copy != NULL) {
+                (void)memcpy(copy, str, len);
+                copy[len] = '\0';
+        }
+
+        return copy;
+}
diff --git a/src/lib/libc/string/strnlen.c b/src/lib/libc/string/strnlen.c
new file mode 100644
index 0000000000..a5e13ae04e
--- /dev/null
+++ b/src/lib/libc/string/strnlen.c
@@ -0,0 +1,36 @@
+/*      $OpenBSD: strnlen.c,v 1.4 2012/04/26 01:22:31 matthew Exp $     */
+
+/*
+ * Copyright (c) 2010 Todd C. Miller <Todd.Miller@courtesan.com>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include <sys/types.h>
+
+#if !defined(_KERNEL) && !defined(_STANDALONE)
+#include <string.h>
+#else
+#include <lib/libkern/libkern.h>
+#endif
+
+size_t
+strnlen(const char *str, size_t maxlen)
+{
+        const char *cp;
+
+        for (cp = str; maxlen != 0 && *cp != '\0'; cp++, maxlen--)
+                ;
+
+        return (size_t)(cp - str);
+}
diff --git a/src/lib/libc/string/strpbrk.3 b/src/lib/libc/string/strpbrk.3
new file mode 100644
index 0000000000..b758df6854
--- /dev/null
+++ b/src/lib/libc/string/strpbrk.3
@@ -0,0 +1,80 @@
+.\"     $OpenBSD: strpbrk.3,v 1.10 2013/06/05 03:39:23 tedu Exp $
+.\"
+.\" Copyright (c) 1990, 1991 The Regents of the University of California.
+.\" All rights reserved.
+.\"
+.\" This code is derived from software contributed to Berkeley by
+.\" Chris Torek and the American National Standards Committee X3,
+.\" on Information Processing Systems.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\" 3. Neither the name of the University nor the names of its contributors
+.\"    may be used to endorse or promote products derived from this software
+.\"    without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.Dd $Mdocdate: June 5 2013 $
+.Dt STRPBRK 3
+.Os
+.Sh NAME
+.Nm strpbrk
+.Nd locate multiple characters in string
+.Sh SYNOPSIS
+.In string.h
+.Ft char *
+.Fn strpbrk "const char *s" "const char *charset"
+.Sh DESCRIPTION
+The
+.Fn strpbrk
+function locates in the NUL-terminated string
+.Fa s
+the first occurrence of any character in the string
+.Fa charset
+and returns a pointer to this character.
+If no characters from
+.Fa charset
+occur anywhere in
+.Fa s ,
+.Fn strpbrk
+returns
+.Dv NULL .
+.Sh SEE ALSO
+.Xr memchr 3 ,
+.Xr strchr 3 ,
+.Xr strcspn 3 ,
+.Xr strrchr 3 ,
+.Xr strsep 3 ,
+.Xr strspn 3 ,
+.Xr strstr 3 ,
+.Xr strtok 3 ,
+.Xr wcspbrk 3
+.Sh STANDARDS
+The
+.Fn strpbrk
+function conforms to
+.St -ansiC .
+.Sh HISTORY
+The
+.Fn strpbrk
+function first appeared in
+.At III
+and was reimplemented for
+.Bx 4.3 Tahoe .
diff --git a/src/lib/libc/string/strpbrk.c b/src/lib/libc/string/strpbrk.c
new file mode 100644
index 0000000000..cd3b71c0d3
--- /dev/null
+++ b/src/lib/libc/string/strpbrk.c
@@ -0,0 +1,48 @@
+/*      $OpenBSD: strpbrk.c,v 1.5 2005/08/08 08:05:37 espie Exp $ */
+/*
+ * Copyright (c) 1985 Regents of the University of California.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <string.h>
+
+/*
+ * Find the first occurrence in s1 of a character in s2 (excluding NUL).
+ */
+char *
+strpbrk(const char *s1, const char *s2)
+{
+        const char *scanp;
+        int c, sc;
+
+        while ((c = *s1++) != 0) {
+                for (scanp = s2; (sc = *scanp++) != 0;)
+                        if (sc == c)
+                                return ((char *)(s1 - 1));
+        }
+        return (NULL);
+}
diff --git a/src/lib/libc/string/strrchr.3 b/src/lib/libc/string/strrchr.3
new file mode 100644
index 0000000000..046b28ce56
--- /dev/null
+++ b/src/lib/libc/string/strrchr.3
@@ -0,0 +1,116 @@
+.\"     $OpenBSD: strrchr.3,v 1.10 2013/06/05 03:39:23 tedu Exp $
+.\"
+.\" Copyright (c) 1990, 1991 The Regents of the University of California.
+.\" All rights reserved.
+.\"
+.\" This code is derived from software contributed to Berkeley by
+.\" Chris Torek and the American National Standards Committee X3,
+.\" on Information Processing Systems.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\" 3. Neither the name of the University nor the names of its contributors
+.\"    may be used to endorse or promote products derived from this software
+.\"    without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.Dd $Mdocdate: June 5 2013 $
+.Dt STRRCHR 3
+.Os
+.Sh NAME
+.Nm strrchr ,
+.Nm rindex
+.Nd locate last occurrence of a character in a string
+.Sh SYNOPSIS
+.In string.h
+.Ft char *
+.Fn strrchr "const char *s" "int c"
+.Ft char *
+.Fn rindex "const char *s" "int c"
+.Sh DESCRIPTION
+The
+.Fn strrchr
+function locates the last occurrence of the character
+.Fa c
+in the string
+.Fa s .
+The terminating
+.Tn NUL
+character is considered part of the string.
+If
+.Fa c
+is
+.Ql \e0 ,
+.Fn strrchr
+locates the terminating
+.Ql \e0 .
+.Pp
+The
+.Fn rindex
+function is an old synonym for
+.Fn strrchr .
+.Sh RETURN VALUES
+The
+.Fn strrchr
+function returns a pointer to the located character or
+.Dv NULL
+if the character does not appear in the string.
+.Sh EXAMPLES
+After the following call to
+.Fn strrchr ,
+.Va p
+will point to the string
+.Qq obar :
+.Bd -literal -offset indent
+char *p;
+char *s = "foobar";
+
+p = strrchr(s, 'o');
+.Ed
+.Sh SEE ALSO
+.Xr memchr 3 ,
+.Xr strchr 3 ,
+.Xr strcspn 3 ,
+.Xr strpbrk 3 ,
+.Xr strsep 3 ,
+.Xr strspn 3 ,
+.Xr strstr 3 ,
+.Xr strtok 3 ,
+.Xr wcsrchr 3
+.Sh STANDARDS
+The
+.Fn strrchr
+function conforms to
+.St -ansiC .
+.Pp
+The
+.Fn rindex
+function is deprecated and shouldn't be used in new code.
+.Sh HISTORY
+The
+.Fn rindex
+function first appeared in
+.At v7 .
+The
+.Fn strrchr
+function first appeared in
+.At III
+and was reimplemented for
+.Bx 4.3 Tahoe .
diff --git a/src/lib/libc/string/strsep.3 b/src/lib/libc/string/strsep.3
new file mode 100644
index 0000000000..77053f66d7
--- /dev/null
+++ b/src/lib/libc/string/strsep.3
@@ -0,0 +1,110 @@
+.\" $OpenBSD: strsep.3,v 1.14 2013/06/05 03:39:23 tedu Exp $
+.\"
+.\" Copyright (c) 1990, 1991, 1993
+.\"     The Regents of the University of California.  All rights reserved.
+.\"
+.\" This code is derived from software contributed to Berkeley by
+.\" Chris Torek.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\" 3. Neither the name of the University nor the names of its contributors
+.\"    may be used to endorse or promote products derived from this software
+.\"    without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.\"     @(#)strsep.3    8.1 (Berkeley) 6/9/93
+.\"
+.Dd $Mdocdate: June 5 2013 $
+.Dt STRSEP 3
+.Os
+.Sh NAME
+.Nm strsep
+.Nd separate strings
+.Sh SYNOPSIS
+.In string.h
+.Ft char *
+.Fn strsep "char **stringp" "const char *delim"
+.Sh DESCRIPTION
+The
+.Fn strsep
+function locates, in the string referenced by
+.Fa *stringp ,
+the first occurrence of any character in the string
+.Fa delim
+(or the terminating
+.Ql \e0
+character) and replaces it with a
+.Ql \e0 .
+The location of the next character after the delimiter character
+(or
+.Dv NULL ,
+if the end of the string was reached) is stored in
+.Fa *stringp .
+The original value of
+.Fa *stringp
+is returned.
+.Pp
+An
+.Dq empty
+field, i.e., one caused by two adjacent delimiter characters,
+can be detected by comparing the location referenced by the pointer returned
+by
+.Fn strsep
+to
+.Ql \e0 .
+.Pp
+If
+.Fa *stringp
+is initially
+.Dv NULL ,
+.Fn strsep
+returns
+.Dv NULL .
+.Sh EXAMPLES
+The following uses
+.Fn strsep
+to parse a string, containing tokens delimited by whitespace, into an
+argument vector:
+.Bd -literal -offset indent
+char **ap, *argv[10], *inputstring;
+
+for (ap = argv; ap < &argv[9] &&
+    (*ap = strsep(&inputstring, " \et")) != NULL;) {
+        if (**ap != '\e0')
+                ap++;
+}
+*ap = NULL;
+.Ed
+.Sh HISTORY
+The
+.Fn strsep
+function first appeared in
+.Bx 4.3 Reno .
+It is intended as a replacement for the
+.Xr strtok 3
+function.
+While the
+.Xr strtok 3
+function should be preferred for portability reasons (it conforms to
+.St -ansiC )
+it is unable to handle empty fields, i.e., detect fields delimited by
+two adjacent delimiter characters, or to be used for more than a single
+string at a time.
diff --git a/src/lib/libc/string/strsep.c b/src/lib/libc/string/strsep.c
new file mode 100644
index 0000000000..2ffc4b4c46
--- /dev/null
+++ b/src/lib/libc/string/strsep.c
@@ -0,0 +1,70 @@
+/*      $OpenBSD: strsep.c,v 1.7 2014/02/05 20:42:32 stsp Exp $ */
+
+/*-
+ * Copyright (c) 1990, 1993
+ *      The Regents of the University of California.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <string.h>
+
+/*
+ * Get next token from string *stringp, where tokens are possibly-empty
+ * strings separated by characters from delim.  
+ *
+ * Writes NULs into the string at *stringp to end tokens.
+ * delim need not remain constant from call to call.
+ * On return, *stringp points past the last NUL written (if there might
+ * be further tokens), or is NULL (if there are definitely no more tokens).
+ *
+ * If *stringp is NULL, strsep returns NULL.
+ */
+char *
+strsep(char **stringp, const char *delim)
+{
+        char *s;
+        const char *spanp;
+        int c, sc;
+        char *tok;
+
+        if ((s = *stringp) == NULL)
+                return (NULL);
+        for (tok = s;;) {
+                c = *s++;
+                spanp = delim;
+                do {
+                        if ((sc = *spanp++) == c) {
+                                if (c == 0)
+                                        s = NULL;
+                                else
+                                        s[-1] = 0;
+                                *stringp = s;
+                                return (tok);
+                        }
+                } while (sc != 0);
+        }
+        /* NOTREACHED */
+}
diff --git a/src/lib/libc/string/strsignal.3 b/src/lib/libc/string/strsignal.3
new file mode 100644
index 0000000000..3261f699d8
--- /dev/null
+++ b/src/lib/libc/string/strsignal.3
@@ -0,0 +1,68 @@
+.\" Copyright (c) 1980, 1991 Regents of the University of California.
+.\" All rights reserved.
+.\"
+.\" This code is derived from software contributed to Berkeley by
+.\" the American National Standards Committee X3, on Information
+.\" Processing Systems.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\" 3. Neither the name of the University nor the names of its contributors
+.\"    may be used to endorse or promote products derived from this software
+.\"    without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.\"     $OpenBSD: strsignal.3,v 1.8 2013/06/05 03:39:23 tedu Exp $
+.\"
+.Dd $Mdocdate: June 5 2013 $
+.Dt STRSIGNAL 3
+.Os
+.Sh NAME
+.Nm strsignal
+.Nd get signal description string
+.Sh SYNOPSIS
+.In string.h
+.Ft char *
+.Fn strsignal "int sig"
+.Sh DESCRIPTION
+The
+.Fn strsignal
+function returns a pointer to the language-dependent string describing
+a signal.
+.Pp
+The array pointed to is not to be modified by the program, but may be
+overwritten by subsequent calls to
+.Fn strsignal .
+.Sh SEE ALSO
+.Xr intro 2 ,
+.Xr psignal 3 ,
+.Xr setlocale 3
+.Sh STANDARDS
+The
+.Fn strsignal
+function conforms to
+.St -p1003.1-2008 .
+.Sh HISTORY
+The
+.Fn strsignal
+function first appeared in
+.At V.4
+and was reimplemented for
+.Nx 1.0 .
diff --git a/src/lib/libc/string/strsignal.c b/src/lib/libc/string/strsignal.c
new file mode 100644
index 0000000000..aa541cefed
--- /dev/null
+++ b/src/lib/libc/string/strsignal.c
@@ -0,0 +1,41 @@
+/*
+ * Copyright (c) 1988 Regents of the University of California.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <string.h>
+#include <limits.h>
+
+extern char *__strsignal(int, char *);
+
+char *
+strsignal(int sig)
+{
+        static char buf[NL_TEXTMAX];
+
+        return __strsignal(sig, buf);
+}
diff --git a/src/lib/libc/string/strspn.3 b/src/lib/libc/string/strspn.3
new file mode 100644
index 0000000000..e339d9b6af
--- /dev/null
+++ b/src/lib/libc/string/strspn.3
@@ -0,0 +1,92 @@
+.\"     $OpenBSD: strspn.3,v 1.11 2013/06/05 03:39:23 tedu Exp $
+.\"
+.\" Copyright (c) 1990, 1991 The Regents of the University of California.
+.\" All rights reserved.
+.\"
+.\" This code is derived from software contributed to Berkeley by
+.\" Chris Torek and the American National Standards Committee X3,
+.\" on Information Processing Systems.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\" 3. Neither the name of the University nor the names of its contributors
+.\"    may be used to endorse or promote products derived from this software
+.\"    without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.Dd $Mdocdate: June 5 2013 $
+.Dt STRSPN 3
+.Os
+.Sh NAME
+.Nm strspn
+.Nd span a string
+.Sh SYNOPSIS
+.In string.h
+.Ft size_t
+.Fn strspn "const char *s" "const char *charset"
+.Sh DESCRIPTION
+The
+.Fn strspn
+function spans the initial part of the NUL-terminated string
+.Fa s
+as long as the characters from
+.Fa s
+occur in string
+.Fa charset .
+.Sh RETURN VALUES
+The
+.Fn strspn
+function returns the number of characters spanned.
+.Sh EXAMPLES
+The following call to
+.Fn strspn
+will return 3, since the first three characters of string
+.Fa s
+are part of string
+.Fa charset :
+.Bd -literal -offset indent
+char *s = "foobar";
+char *charset = "of";
+size_t span;
+
+span = strspn(s, charset);
+.Ed
+.Sh SEE ALSO
+.Xr memchr 3 ,
+.Xr strchr 3 ,
+.Xr strcspn 3 ,
+.Xr strpbrk 3 ,
+.Xr strrchr 3 ,
+.Xr strsep 3 ,
+.Xr strstr 3 ,
+.Xr strtok 3 ,
+.Xr wcsspn 3
+.Sh STANDARDS
+The
+.Fn strspn
+function conforms to
+.St -ansiC .
+.Sh HISTORY
+The
+.Fn strspn
+function first appeared in
+.At III
+and was reimplemented for
+.Bx 4.3 Tahoe .
diff --git a/src/lib/libc/string/strspn.c b/src/lib/libc/string/strspn.c
new file mode 100644
index 0000000000..385649c041
--- /dev/null
+++ b/src/lib/libc/string/strspn.c
@@ -0,0 +1,51 @@
+/*      $OpenBSD: strspn.c,v 1.5 2005/08/08 08:05:37 espie Exp $ */
+/*
+ * Copyright (c) 1989 The Regents of the University of California.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <string.h>
+
+/*
+ * Span the string s2 (skip characters that are in s2).
+ */
+size_t
+strspn(const char *s1, const char *s2)
+{
+        const char *p = s1, *spanp;
+        char c, sc;
+
+        /*
+         * Skip any characters in s2, excluding the terminating \0.
+         */
+cont:
+        c = *p++;
+        for (spanp = s2; (sc = *spanp++) != 0;)
+                if (sc == c)
+                        goto cont;
+        return (p - 1 - s1);
+}
diff --git a/src/lib/libc/string/strstr.3 b/src/lib/libc/string/strstr.3
new file mode 100644
index 0000000000..1f79d45590
--- /dev/null
+++ b/src/lib/libc/string/strstr.3
@@ -0,0 +1,100 @@
+.\"     $OpenBSD: strstr.3,v 1.12 2013/06/05 03:39:23 tedu Exp $
+.\"
+.\" Copyright (c) 1990, 1991 The Regents of the University of California.
+.\" All rights reserved.
+.\"
+.\" This code is derived from software contributed to Berkeley by
+.\" Chris Torek and the American National Standards Committee X3,
+.\" on Information Processing Systems.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\" 3. Neither the name of the University nor the names of its contributors
+.\"    may be used to endorse or promote products derived from this software
+.\"    without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.Dd $Mdocdate: June 5 2013 $
+.Dt STRSTR 3
+.Os
+.Sh NAME
+.Nm strstr , strcasestr
+.Nd locate a substring in a string
+.Sh SYNOPSIS
+.In string.h
+.Ft char *
+.Fn strstr "const char *big" "const char *little"
+.Ft char *
+.Fn strcasestr "const char *big" "const char *little"
+.Sh DESCRIPTION
+The
+.Fn strstr
+function locates the first occurrence of the NUL-terminated string
+.Fa little
+in the NUL-terminated string
+.Fa big .
+.Pp
+The
+.Fn strcasestr
+function is similar to
+.Fn strstr
+but ignores the case of both strings.
+.Pp
+If
+.Fa little
+is an empty string,
+.Fa big
+is returned;
+if
+.Fa little
+occurs nowhere in
+.Fa big ,
+.Dv NULL
+is returned;
+otherwise a pointer to the first character of the first occurrence of
+.Fa little
+is returned.
+.Sh SEE ALSO
+.Xr memchr 3 ,
+.Xr strchr 3 ,
+.Xr strcspn 3 ,
+.Xr strpbrk 3 ,
+.Xr strrchr 3 ,
+.Xr strsep 3 ,
+.Xr strspn 3 ,
+.Xr strtok 3 ,
+.Xr wcsstr 3
+.Sh STANDARDS
+The
+.Fn strstr
+function conforms to
+.St -ansiC .
+.Sh HISTORY
+The
+.Fn strstr
+function first appeared in
+.Bx 4.3 Reno .
+The
+.Fn strcasestr
+function appeared in glibc 2.1,
+was reimplemented for
+.Fx 4.5
+and ported to
+.Ox 3.8 .
diff --git a/src/lib/libc/string/strstr.c b/src/lib/libc/string/strstr.c
new file mode 100644
index 0000000000..95a865bf79
--- /dev/null
+++ b/src/lib/libc/string/strstr.c
@@ -0,0 +1,56 @@
+/*      $OpenBSD: strstr.c,v 1.5 2005/08/08 08:05:37 espie Exp $ */
+/*-
+ * Copyright (c) 1990 The Regents of the University of California.
+ * All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Chris Torek.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <string.h>
+
+/*
+ * Find the first occurrence of find in s.
+ */
+char *
+strstr(const char *s, const char *find)
+{
+        char c, sc;
+        size_t len;
+
+        if ((c = *find++) != 0) {
+                len = strlen(find);
+                do {
+                        do {
+                                if ((sc = *s++) == 0)
+                                        return (NULL);
+                        } while (sc != c);
+                } while (strncmp(s, find, len) != 0);
+                s--;
+        }
+        return ((char *)s);
+}
diff --git a/src/lib/libc/string/strtok.3 b/src/lib/libc/string/strtok.3
new file mode 100644
index 0000000000..046a43b6b1
--- /dev/null
+++ b/src/lib/libc/string/strtok.3
@@ -0,0 +1,166 @@
+.\"     $OpenBSD: strtok.3,v 1.21 2013/06/05 03:39:23 tedu Exp $
+.\"
+.\" Copyright (c) 1988, 1991 The Regents of the University of California.
+.\" All rights reserved.
+.\"
+.\" This code is derived from software contributed to Berkeley by
+.\" the American National Standards Committee X3, on Information
+.\" Processing Systems.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\" 3. Neither the name of the University nor the names of its contributors
+.\"    may be used to endorse or promote products derived from this software
+.\"    without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.Dd $Mdocdate: June 5 2013 $
+.Dt STRTOK 3
+.Os
+.Sh NAME
+.Nm strtok ,
+.Nm strtok_r
+.Nd string token operations
+.Sh SYNOPSIS
+.In string.h
+.Ft char *
+.Fn strtok "char *str" "const char *sep"
+.Ft char *
+.Fn strtok_r "char *str" "const char *sep" "char **last"
+.Sh DESCRIPTION
+.Bf -symbolic
+This interface is obsoleted by
+.Xr strsep 3 .
+.Ef
+.Pp
+The
+.Fn strtok
+function is used to isolate sequential tokens in a NUL-terminated string,
+.Fa str .
+These tokens are separated in the string by at least one of the
+characters in
+.Fa sep .
+The first time that
+.Fn strtok
+is called,
+.Fa str
+should be specified; subsequent calls, wishing to obtain further tokens
+from the same string, should pass a null pointer instead.
+The separator string,
+.Fa sep ,
+must be supplied each time, and may change between calls.
+.Pp
+The
+.Fn strtok_r
+function is a version of
+.Fn strtok
+that takes an explicit context argument and is reentrant.
+.Pp
+Since
+.Fn strtok
+and
+.Fn strtok_r
+modify the string,
+.Fa str
+should not point to an area in the initialized data segment.
+.Sh RETURN VALUES
+The
+.Fn strtok
+and
+.Fn strtok_r
+functions return a pointer to the beginning of each subsequent token
+in the string, after replacing the separator character itself with an
+.Tn ASCII NUL
+character.
+When no more tokens remain, a null pointer is returned.
+.Sh EXAMPLES
+The following will construct an array of pointers to each individual word in
+the string
+.Va s :
+.Bd -literal -offset indent
+#define MAXTOKENS       128
+
+char s[512], *p, *tokens[MAXTOKENS];
+char *last;
+int i = 0;
+
+snprintf(s, sizeof(s), "cat dog horse cow");
+
+for ((p = strtok_r(s, " ", &last)); p;
+    (p = strtok_r(NULL, " ", &last))) {
+        if (i < MAXTOKENS - 1)
+                tokens[i++] = p;
+}
+tokens[i] = NULL;
+.Ed
+.Pp
+That is,
+.Li tokens[0]
+will point to
+.Qq cat ,
+.Li tokens[1]
+will point to
+.Qq dog ,
+.Li tokens[2]
+will point to
+.Qq horse ,
+and
+.Li tokens[3]
+will point to
+.Qq cow .
+.Sh SEE ALSO
+.Xr memchr 3 ,
+.Xr strchr 3 ,
+.Xr strcspn 3 ,
+.Xr strpbrk 3 ,
+.Xr strrchr 3 ,
+.Xr strsep 3 ,
+.Xr strspn 3 ,
+.Xr strstr 3 ,
+.Xr wcstok 3
+.Sh STANDARDS
+The
+.Fn strtok
+function conforms to
+.St -ansiC .
+.Sh HISTORY
+The
+.Fn strtok
+function first appeared in
+.At III
+and was reimplemented for
+.Bx 4.3 Tahoe .
+The
+.Fn strtok_r
+function first appeared in
+.Nx 1.3
+and was reimplemented for
+.Ox 2.7 .
+.Sh BUGS
+The System V
+.Fn strtok ,
+if handed a string containing only delimiter characters,
+will not alter the next starting point, so that a call to
+.Fn strtok
+with a different (or empty) delimiter string
+may return a non-null value.
+Since this implementation always alters the next starting point,
+such a sequence of calls would always return
+.Dv NULL .
diff --git a/src/lib/libc/string/strtok.c b/src/lib/libc/string/strtok.c
new file mode 100644
index 0000000000..4e963a019e
--- /dev/null
+++ b/src/lib/libc/string/strtok.c
@@ -0,0 +1,86 @@
+/*
+ * Copyright (c) 1988 Regents of the University of California.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <string.h>
+
+char *
+strtok(char *s, const char *delim)
+{
+        static char *last;
+
+        return strtok_r(s, delim, &last);
+}
+
+char *
+strtok_r(char *s, const char *delim, char **last)
+{
+        char *spanp;
+        int c, sc;
+        char *tok;
+
+
+        if (s == NULL && (s = *last) == NULL)
+                return (NULL);
+
+        /*
+         * Skip (span) leading delimiters (s += strspn(s, delim), sort of).
+         */
+cont:
+        c = *s++;
+        for (spanp = (char *)delim; (sc = *spanp++) != 0;) {
+                if (c == sc)
+                        goto cont;
+        }
+
+        if (c == 0) {           /* no non-delimiter characters */
+                *last = NULL;
+                return (NULL);
+        }
+        tok = s - 1;
+
+        /*
+         * Scan token (scan for delimiters: s += strcspn(s, delim), sort of).
+         * Note that delim must have one NUL; we stop if we see that, too.
+         */
+        for (;;) {
+                c = *s++;
+                spanp = (char *)delim;
+                do {
+                        if ((sc = *spanp++) == c) {
+                                if (c == 0)
+                                        s = NULL;
+                                else
+                                        s[-1] = 0;
+                                *last = s;
+                                return (tok);
+                        }
+                } while (sc != 0);
+        }
+        /* NOTREACHED */
+}
diff --git a/src/lib/libc/string/strxfrm.3 b/src/lib/libc/string/strxfrm.3
new file mode 100644
index 0000000000..481f741cb7
--- /dev/null
+++ b/src/lib/libc/string/strxfrm.3
@@ -0,0 +1,79 @@
+.\" Copyright (c) 1990, 1991 The Regents of the University of California.
+.\" All rights reserved.
+.\"
+.\" This code is derived from software contributed to Berkeley by
+.\" Chris Torek and the American National Standards Committee X3,
+.\" on Information Processing Systems.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\" 3. Neither the name of the University nor the names of its contributors
+.\"    may be used to endorse or promote products derived from this software
+.\"    without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.\"     $OpenBSD: strxfrm.3,v 1.10 2013/06/05 03:39:23 tedu Exp $
+.\"
+.Dd $Mdocdate: June 5 2013 $
+.Dt STRXFRM 3
+.Os
+.Sh NAME
+.Nm strxfrm
+.Nd transform a string under locale
+.Sh SYNOPSIS
+.In string.h
+.Ft size_t
+.Fn strxfrm "char *dst" "const char *src" "size_t n"
+.Sh DESCRIPTION
+The idea of
+.Fn strxfrm
+is to
+.Dq un-localize
+a string: the function transforms
+.Ar src ,
+storing the result in
+.Ar dst ,
+such that
+.Xr strcmp 3
+on transformed strings returns what
+.Xr strcoll 3
+on the original untransformed strings would return.
+.Sh SEE ALSO
+.Xr bcmp 3 ,
+.Xr memcmp 3 ,
+.Xr setlocale 3 ,
+.Xr strcasecmp 3 ,
+.Xr strcmp 3 ,
+.Xr strcoll 3
+.Sh STANDARDS
+The
+.Fn strxfrm
+function conforms to
+.St -ansiC .
+.Sh HISTORY
+The
+.Fn strxfrm
+function first appeared in
+.Bx 4.3 Reno .
+.Sh BUGS
+Since locales are not fully implemented on
+.Ox ,
+.Fn strxfrm
+just returns a copy of the original string.
diff --git a/src/lib/libc/string/strxfrm.c b/src/lib/libc/string/strxfrm.c
new file mode 100644
index 0000000000..6f289c901e
--- /dev/null
+++ b/src/lib/libc/string/strxfrm.c
@@ -0,0 +1,51 @@
+/*      $OpenBSD: strxfrm.c,v 1.6 2005/08/08 08:05:37 espie Exp $ */
+/*-
+ * Copyright (c) 1990 The Regents of the University of California.
+ * All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Chris Torek.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <string.h>
+
+/*
+ * Transform src, storing the result in dst, such that
+ * strcmp() on transformed strings returns what strcoll()
+ * on the original untransformed strings would return.
+ */
+size_t
+strxfrm(char *dst, const char *src, size_t n)
+{
+
+        /*
+         * Since locales are unimplemented, this is just a copy.
+         */
+        if (n == 0)
+                return (strlen(src));
+        return (strlcpy(dst, src, n));
+}
diff --git a/src/lib/libc/string/swab.3 b/src/lib/libc/string/swab.3
new file mode 100644
index 0000000000..77e5a9ccbc
--- /dev/null
+++ b/src/lib/libc/string/swab.3
@@ -0,0 +1,61 @@
+.\" Copyright (c) 1990, 1991 The Regents of the University of California.
+.\" All rights reserved.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\" 3. Neither the name of the University nor the names of its contributors
+.\"    may be used to endorse or promote products derived from this software
+.\"    without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.\"     $OpenBSD: swab.3,v 1.8 2013/06/05 03:39:23 tedu Exp $
+.\"
+.Dd $Mdocdate: June 5 2013 $
+.Dt SWAB 3
+.Os
+.Sh NAME
+.Nm swab
+.Nd swap adjacent bytes
+.Sh SYNOPSIS
+.In unistd.h
+.Ft void
+.Fn swab "const void *src" "void *dst" "size_t len"
+.Sh DESCRIPTION
+The function
+.Fn swab
+copies
+.Fa len
+bytes from the location referenced by
+.Fa src
+to the location referenced by
+.Fa dst ,
+swapping adjacent bytes.
+.Pp
+The argument
+.Fa len
+must be an even number.
+.Sh SEE ALSO
+.Xr bzero 3 ,
+.Xr memset 3
+.Sh HISTORY
+The
+.Fn swab
+function first appeared in
+.At v7 .
diff --git a/src/lib/libc/string/swab.c b/src/lib/libc/string/swab.c
new file mode 100644
index 0000000000..b74db7e62a
--- /dev/null
+++ b/src/lib/libc/string/swab.c
@@ -0,0 +1,61 @@
+/*      $OpenBSD: swab.c,v 1.8 2008/03/15 21:54:09 ray Exp $ */
+/*
+ * Copyright (c) 1988 Regents of the University of California.
+ * All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Jeffrey Mogul.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <unistd.h>
+
+void
+swab(const void *from, void *to, size_t len)
+{
+        size_t n;
+        char *fp, *tp;
+        char temp;
+
+        n = (len / 2) + 1;
+        fp = (char *)from;
+        tp = (char *)to;
+#define STEP do {       \
+        temp = *fp++;   \
+        *tp++ = *fp++;  \
+        *tp++ = temp;   \
+} while (0)
+        /* round to multiple of 8 */
+        while ((--n) & 07)
+                STEP;
+        n >>= 3;
+        if (n == 0)
+                return;
+        while (n-- != 0) {
+                STEP; STEP; STEP; STEP;
+                STEP; STEP; STEP; STEP;
+        }
+}
diff --git a/src/lib/libc/string/timingsafe_bcmp.c b/src/lib/libc/string/timingsafe_bcmp.c
new file mode 100644
index 0000000000..9c4287cf63
--- /dev/null
+++ b/src/lib/libc/string/timingsafe_bcmp.c
@@ -0,0 +1,33 @@
+/*      $OpenBSD: timingsafe_bcmp.c,v 1.1 2010/09/24 13:33:00 matthew Exp $     */
+/*
+ * Copyright (c) 2010 Damien Miller.  All rights reserved.
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#if !defined(_KERNEL) && !defined(_STANDALONE)
+#include <string.h>
+#else
+#include <lib/libkern/libkern.h>
+#endif
+
+int
+timingsafe_bcmp(const void *b1, const void *b2, size_t n)
+{
+        const unsigned char *p1 = b1, *p2 = b2;
+        int ret = 0;
+
+        for (; n > 0; n--)
+                ret |= *p1++ ^ *p2++;
+        return (ret != 0);
+}
diff --git a/src/lib/libc/string/wcscasecmp.3 b/src/lib/libc/string/wcscasecmp.3
new file mode 100644
index 0000000000..daf397aece
--- /dev/null
+++ b/src/lib/libc/string/wcscasecmp.3
@@ -0,0 +1,94 @@
+.\"     $OpenBSD: wcscasecmp.3,v 1.4 2013/07/16 15:21:11 schwarze Exp $
+.\"
+.\" Copyright (c) 1990, 1991, 1993
+.\"     The Regents of the University of California.  All rights reserved.
+.\"
+.\" This code is derived from software contributed to Berkeley by
+.\" Chris Torek.
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\" 3. Neither the name of the University nor the names of its contributors
+.\"    may be used to endorse or promote products derived from this software
+.\"    without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.\"     @(#)strcasecmp.3        8.1 (Berkeley) 6/9/93
+.\"
+.Dd $Mdocdate: July 16 2013 $
+.Dt WCSCASECMP 3
+.Os
+.Sh NAME
+.Nm wcscasecmp ,
+.Nm wcsncasecmp
+.Nd compare wide strings, ignoring case
+.Sh SYNOPSIS
+.In wchar.h
+.Ft int
+.Fn wcscasecmp "const wchar_t *s1" "const wchar_t *s2"
+.Ft int
+.Fn wcsncasecmp "const wchar_t *s1" "const wchar_t *s2" "size_t len"
+.Sh DESCRIPTION
+The
+.Fn wcscasecmp
+and
+.Fn wcsncasecmp
+functions compare the wide strings
+.Fa s1
+and
+.Fa s2
+and return an integer greater than, equal to, or less than 0,
+according to whether
+.Fa s1
+is lexicographically greater than, equal to, or less than
+.Fa s2
+after translation of each corresponding wide character to lower case.
+The wide strings themselves are not modified.
+.Pp
+.Fn wcsncasecmp
+compares at most
+.Fa len
+wide characters.
+.Sh SEE ALSO
+.Xr strcasecmp 3 ,
+.Xr wcscmp 3 ,
+.Xr wmemcmp 3
+.Sh STANDARDS
+The
+.Fn wcscasecmp
+and
+.Fn wcsncasecmp
+functions conform to
+.St -p1003.1-2008 .
+.Sh HISTORY
+The
+.Fn wcscasecmp
+and
+.Fn wcsncasecmp
+functions first appeared in
+.Ox 5.0 .
+.Sh AUTHORS
+The
+.Ox
+versions of
+.Fn wcscasecmp
+and
+.Fn wcsncasecmp
+were implemented by
+.An Marc Espie Aq Mt espie@openbsd.org .
diff --git a/src/lib/libc/string/wcscasecmp.c b/src/lib/libc/string/wcscasecmp.c
new file mode 100644
index 0000000000..b14997ee75
--- /dev/null
+++ b/src/lib/libc/string/wcscasecmp.c
@@ -0,0 +1,61 @@
+/*      $OpenBSD: wcscasecmp.c,v 1.2 2011/06/01 19:29:48 naddy Exp $ */
+
+/*
+ * Copyright (c) 2011 Marc Espie
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE OPENBSD PROJECT AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE OPENBSD
+ * PROJECT OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <wchar.h>
+#include <wctype.h>
+#include "locale/runetype.h"
+
+int
+wcscasecmp(const wchar_t *s1, const wchar_t *s2)
+{
+        wchar_t l1, l2;
+
+        while ((l1 = towlower(*s1++)) == (l2 = towlower(*s2++))) {
+                if (l1 == 0)
+                        return (0);
+        }
+        /* XXX assumes wchar_t = int */
+        return ((rune_t)l1 - (rune_t)l2);
+}
+
+int
+wcsncasecmp(const wchar_t *s1, const wchar_t *s2, size_t n)
+{
+        wchar_t l1, l2;
+
+        if (n == 0)
+                return (0);
+        do {
+                if (((l1 = towlower(*s1++))) != (l2 = towlower(*s2++))) {
+                        /* XXX assumes wchar_t = int */
+                        return ((rune_t)l1 - (rune_t)l2);
+                }
+                if (l1 == 0)
+                        break;
+        } while (--n != 0);
+        return (0);
+}
diff --git a/src/lib/libc/string/wcscat.3 b/src/lib/libc/string/wcscat.3
new file mode 100644
index 0000000000..9b7588cf9e
--- /dev/null
+++ b/src/lib/libc/string/wcscat.3
@@ -0,0 +1,115 @@
+.\"     $OpenBSD: wcscat.3,v 1.3 2013/06/05 03:39:23 tedu Exp $
+.\"
+.\" Copyright (c) 1990, 1991 The Regents of the University of California.
+.\" All rights reserved.
+.\"
+.\" This code is derived from software contributed to Berkeley by
+.\" Chris Torek and the American National Standards Committee X3,
+.\" on Information Processing Systems.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\" 3. Neither the name of the University nor the names of its contributors
+.\"    may be used to endorse or promote products derived from this software
+.\"    without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.Dd $Mdocdate: June 5 2013 $
+.Dt WCSCAT 3
+.Os
+.Sh NAME
+.Nm wcscat ,
+.Nm wcsncat
+.Nd concatenate wide strings
+.Sh SYNOPSIS
+.In wchar.h
+.Ft wchar_t *
+.Fn wcscat "wchar_t * restrict s" "const wchar_t * restrict append"
+.Ft wchar_t *
+.Fo wcsncat
+.Fa "wchar_t * restrict s"
+.Fa "const wchar_t * restrict append"
+.Fa "size_t count"
+.Fc
+.Sh DESCRIPTION
+The
+.Fn wcscat
+and
+.Fn wcsncat
+functions append a copy of the wide string
+.Fa append
+to the end of the wide string
+.Fa s ,
+then add a terminating null wide character (L'\e0').
+The wide string
+.Fa s
+must have sufficient space to hold the result.
+.Pp
+The
+.Fn wcsncat
+function appends not more than
+.Fa count
+wide characters where space for the terminating null wide character
+should not be included in
+.Fa count .
+.Sh RETURN VALUES
+The
+.Fn wcscat
+and
+.Fn wcsncat
+functions return the pointer
+.Fa s .
+.Sh SEE ALSO
+.Xr strcat 3 ,
+.Xr strlcpy 3 ,
+.Xr wcscpy 3 ,
+.Xr wcslcpy 3 ,
+.Xr wmemcpy 3 ,
+.Xr wmemmove 3
+.Sh STANDARDS
+The
+.Fn wcscat
+and
+.Fn wcsncat
+functions conform to
+.St -isoC-99
+and were first introduced in
+.St -isoC-amd1 .
+.Sh HISTORY
+The
+.Fn wcscat
+and
+.Fn wcsncat
+functions were ported from
+.Nx
+and first appeared in
+.Ox 3.8 .
+.Sh CAVEATS
+Using the functions
+.Fn wcscat
+and
+.Fn wcsncat
+is very error-prone with respect to buffer overflows;
+see the EXAMPLES section in
+.Xr strcat 3
+for correct usage.
+Using
+.Xr wcslcat 3
+is a better choice in most cases.
diff --git a/src/lib/libc/string/wcscat.c b/src/lib/libc/string/wcscat.c
new file mode 100644
index 0000000000..a4841a975a
--- /dev/null
+++ b/src/lib/libc/string/wcscat.c
@@ -0,0 +1,55 @@
+/*      $OpenBSD: wcscat.c,v 1.3 2005/08/08 08:05:37 espie Exp $        */
+/*      $NetBSD: wcscat.c,v 1.2 2001/01/03 14:29:36 lukem Exp $ */
+
+/*-
+ * Copyright (c)1999 Citrus Project,
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ *      citrus Id: wcscat.c,v 1.1 1999/12/29 21:47:45 tshiozak Exp
+ */
+
+#include <wchar.h>
+
+#if defined(APIWARN)
+__warn_references(wcscat,
+    "warning: wcscat() is almost always misused, please use wcslcat()");
+#endif
+
+wchar_t *
+wcscat(wchar_t *s1, const wchar_t *s2)
+{
+        wchar_t *p;
+        wchar_t *q;
+        const wchar_t *r;
+
+        p = s1;
+        while (*p)
+                p++;
+        q = p;
+        r = s2;
+        while (*r)
+                *q++ = *r++;
+        *q = '\0';
+        return s1;
+}
diff --git a/src/lib/libc/string/wcschr.3 b/src/lib/libc/string/wcschr.3
new file mode 100644
index 0000000000..bb714b2099
--- /dev/null
+++ b/src/lib/libc/string/wcschr.3
@@ -0,0 +1,85 @@
+.\"     $OpenBSD: wcschr.3,v 1.4 2013/06/05 03:39:23 tedu Exp $
+.\"
+.\" Copyright (c) 1990, 1991 The Regents of the University of California.
+.\" All rights reserved.
+.\"
+.\" This code is derived from software contributed to Berkeley by
+.\" Chris Torek and the American National Standards Committee X3,
+.\" on Information Processing Systems.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\" 3. Neither the name of the University nor the names of its contributors
+.\"    may be used to endorse or promote products derived from this software
+.\"    without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.Dd $Mdocdate: June 5 2013 $
+.Dt WCSCHR 3
+.Os
+.Sh NAME
+.Nm wcschr
+.Nd locate first occurrence of a wide character in a wide string
+.Sh SYNOPSIS
+.In wchar.h
+.Ft wchar_t *
+.Fn wcschr "const wchar_t *s" "wchar_t c"
+.Sh DESCRIPTION
+The
+.Fn wcschr
+function locates the first occurrence of the wide character
+.Fa c
+in the wide string
+.Fa s .
+The terminating null wide character is considered part of the wide string.
+If
+.Fa c
+is the null wide character (L'\e0'),
+.Fn wcschr
+locates the terminating null wide character.
+.Sh RETURN VALUES
+The
+.Fn wcschr
+function returns a pointer to the located wide character or
+.Dv NULL
+if the wide character does not appear in the wide string.
+.Sh SEE ALSO
+.Xr strchr 3 ,
+.Xr wcscspn 3 ,
+.Xr wcspbrk 3 ,
+.Xr wcsrchr 3 ,
+.Xr wcsspn 3 ,
+.Xr wcsstr 3 ,
+.Xr wcstok 3 ,
+.Xr wmemchr 3
+.Sh STANDARDS
+The
+.Fn wcschr
+function conforms to
+.St -isoC-99
+and was first introduced in
+.St -isoC-amd1 .
+.Sh HISTORY
+The
+.Fn wcschr
+function was ported from
+.Nx
+and first appeared in
+.Ox 3.8 .
diff --git a/src/lib/libc/string/wcschr.c b/src/lib/libc/string/wcschr.c
new file mode 100644
index 0000000000..b84a2d32e3
--- /dev/null
+++ b/src/lib/libc/string/wcschr.c
@@ -0,0 +1,50 @@
+/*      $OpenBSD: wcschr.c,v 1.4 2008/08/23 05:34:36 djm Exp $  */
+/*      $NetBSD: wcschr.c,v 1.2 2001/01/03 14:29:36 lukem Exp $ */
+
+/*-
+ * Copyright (c)1999 Citrus Project,
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ *      citrus Id: wcschr.c,v 1.2 2000/12/21 05:07:25 itojun Exp
+ */
+
+#include <wchar.h>
+
+wchar_t *
+wcschr(const wchar_t *s, wchar_t c)
+{
+        const wchar_t *p;
+
+        p = s;
+        for (;;) {
+                if (*p == c) {
+                        /* LINTED interface specification */
+                        return (wchar_t *)p;
+                }
+                if (!*p)
+                        return NULL;
+                p++;
+        }
+        /* NOTREACHED */
+}
diff --git a/src/lib/libc/string/wcscmp.3 b/src/lib/libc/string/wcscmp.3
new file mode 100644
index 0000000000..53cd15a1f0
--- /dev/null
+++ b/src/lib/libc/string/wcscmp.3
@@ -0,0 +1,92 @@
+.\"     $OpenBSD: wcscmp.3,v 1.3 2013/06/05 03:39:23 tedu Exp $
+.\"
+.\" Copyright (c) 1990, 1991 The Regents of the University of California.
+.\" All rights reserved.
+.\"
+.\" This code is derived from software contributed to Berkeley by
+.\" Chris Torek and the American National Standards Committee X3,
+.\" on Information Processing Systems.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\" 3. Neither the name of the University nor the names of its contributors
+.\"    may be used to endorse or promote products derived from this software
+.\"    without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.Dd $Mdocdate: June 5 2013 $
+.Dt WCSCMP 3
+.Os
+.Sh NAME
+.Nm wcscmp ,
+.Nm wcsncmp
+.Nd compare wide strings
+.Sh SYNOPSIS
+.In wchar.h
+.Ft int
+.Fn wcscmp "const wchar_t *s1" "const wchar_t *s2"
+.Ft int
+.Fn wcsncmp "const wchar_t *s1" "const wchar_t *s2" "size_t len"
+.Sh DESCRIPTION
+The
+.Fn wcscmp
+and
+.Fn wcsncmp
+functions lexicographically compare the wide strings
+.Fa s1
+and
+.Fa s2 .
+The
+.Fn wcsncmp
+function compares at most
+.Fa len
+wide characters.
+.Sh RETURN VALUES
+The
+.Fn wcscmp
+and
+.Fn wcsncmp
+functions return an integer greater than, equal to, or less than 0, according
+to whether the wide string
+.Fa s1
+is greater than, equal to, or less than the wide string
+.Fa s2 .
+.Sh SEE ALSO
+.Xr strcmp 3 ,
+.Xr wcscasecmp 3 ,
+.Xr wmemcmp 3
+.Sh STANDARDS
+The
+.Fn wcscmp
+and
+.Fn wcsncmp
+functions conform to
+.St -isoC-99
+and were first introduced in
+.St -isoC-amd1 .
+.Sh HISTORY
+The
+.Fn wcscmp
+and
+.Fn wcsncmp
+functions were ported from
+.Nx
+and first appeared in
+.Ox 3.8 .
diff --git a/src/lib/libc/string/wcscmp.c b/src/lib/libc/string/wcscmp.c
new file mode 100644
index 0000000000..4a8f6ba3fb
--- /dev/null
+++ b/src/lib/libc/string/wcscmp.c
@@ -0,0 +1,51 @@
+/*      $OpenBSD: wcscmp.c,v 1.4 2005/08/08 08:05:37 espie Exp $        */
+/*      $NetBSD: wcscmp.c,v 1.5 2003/08/07 16:43:54 agc Exp $   */
+
+/*-
+ * Copyright (c) 1990, 1993
+ *      The Regents of the University of California.  All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Chris Torek.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <wchar.h>
+#include "locale/runetype.h"
+
+/*
+ * Compare strings.
+ */
+int
+wcscmp(const wchar_t *s1, const wchar_t *s2)
+{
+
+        while (*s1 == *s2++)
+                if (*s1++ == 0)
+                        return (0);
+        /* XXX assumes wchar_t = int */
+        return (*(const rune_t *)s1 - *(const rune_t *)--s2);
+}
diff --git a/src/lib/libc/string/wcscpy.3 b/src/lib/libc/string/wcscpy.3
new file mode 100644
index 0000000000..2277eb419a
--- /dev/null
+++ b/src/lib/libc/string/wcscpy.3
@@ -0,0 +1,129 @@
+.\"     $OpenBSD: wcscpy.3,v 1.4 2013/09/25 21:49:31 millert Exp $
+.\"
+.\" Copyright (c) 1990, 1991 The Regents of the University of California.
+.\" All rights reserved.
+.\"
+.\" This code is derived from software contributed to Berkeley by
+.\" Chris Torek and the American National Standards Committee X3,
+.\" on Information Processing Systems.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\" 3. Neither the name of the University nor the names of its contributors
+.\"    may be used to endorse or promote products derived from this software
+.\"    without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.Dd $Mdocdate: September 25 2013 $
+.Dt WCSCPY 3
+.Os
+.Sh NAME
+.Nm wcscpy ,
+.Nm wcsncpy
+.Nd copy wide strings
+.Sh SYNOPSIS
+.In wchar.h
+.Ft wchar_t *
+.Fn wcscpy "wchar_t * restrict dst" "const wchar_t * restrict src"
+.Ft wchar_t *
+.Fo wcsncpy
+.Fa "wchar_t * restrict dst"
+.Fa "const wchar_t * restrict src"
+.Fa "size_t len"
+.Fc
+.Sh DESCRIPTION
+The
+.Fn wcscpy
+and
+.Fn wcsncpy
+functions copy the wide string
+.Fa src
+to
+.Fa dst
+(including the terminating null wide character).
+.Pp
+The
+.Fn wcsncpy
+function copies not more than
+.Fa len
+wide characters to
+.Fa dst ,
+appending null wide characters if the length of
+.Fa src
+is less than
+.Fa len ,
+and
+.Em not
+terminating
+.Fa dst
+if the length of
+.Fa src
+is greater than or equal to
+.Fa len .
+.Pp
+If the
+.Fa src
+and
+.Fa dst
+strings overlap, the behavior is undefined.
+.Sh RETURN VALUES
+The
+.Fn wcscpy
+and
+.Fn wcsncpy
+functions return
+.Fa dst .
+.Sh SEE ALSO
+.Xr strcpy 3 ,
+.Xr strlcpy 3 ,
+.Xr wcscat 3 ,
+.Xr wcslcpy 3 ,
+.Xr wmemcpy 3 ,
+.Xr wmemmove 3
+.Sh STANDARDS
+The
+.Fn wcscpy
+and
+.Fn wcsncpy
+functions conform to
+.St -isoC-99
+and were first introduced in
+.St -isoC-amd1 .
+.Sh HISTORY
+The
+.Fn wcscpy
+and
+.Fn wcsncpy
+functions were ported from
+.Nx
+and first appeared in
+.Ox 3.8 .
+.Sh CAVEATS
+Using the functions
+.Fn wcscpy
+and
+.Fn wcsncpy
+is very error-prone with respect to buffer overflows;
+see the EXAMPLES section in
+.Xr strcpy 3
+for correct usage.
+Using
+.Xr wcslcpy 3
+is a better choice in most cases.
diff --git a/src/lib/libc/string/wcscpy.c b/src/lib/libc/string/wcscpy.c
new file mode 100644
index 0000000000..75fdb75fe4
--- /dev/null
+++ b/src/lib/libc/string/wcscpy.c
@@ -0,0 +1,52 @@
+/*      $OpenBSD: wcscpy.c,v 1.4 2005/08/08 08:05:37 espie Exp $        */
+/*      $NetBSD: wcscpy.c,v 1.2 2001/01/03 14:29:36 lukem Exp $ */
+
+/*-
+ * Copyright (c)1999 Citrus Project,
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ *      citrus Id: wcscpy.c,v 1.2 2000/12/21 04:51:09 itojun Exp
+ */
+
+#include <wchar.h>
+
+#if defined(APIWARN)
+__warn_references(wcscpy,
+    "warning: wcscpy() is almost always misused, please use wcslcpy()");
+#endif
+
+wchar_t *
+wcscpy(wchar_t *s1, const wchar_t *s2)
+{
+        wchar_t *p;
+        const wchar_t *q;
+
+        p = s1;
+        q = s2;
+        while (*q)
+                *p++ = *q++;
+        *p = '\0';
+
+        return s1;
+}
diff --git a/src/lib/libc/string/wcscspn.3 b/src/lib/libc/string/wcscspn.3
new file mode 100644
index 0000000000..520a739202
--- /dev/null
+++ b/src/lib/libc/string/wcscspn.3
@@ -0,0 +1,83 @@
+.\"     $OpenBSD: wcscspn.3,v 1.3 2013/06/05 03:39:23 tedu Exp $
+.\"
+.\" Copyright (c) 1990, 1991 The Regents of the University of California.
+.\" All rights reserved.
+.\"
+.\" This code is derived from software contributed to Berkeley by
+.\" Chris Torek and the American National Standards Committee X3,
+.\" on Information Processing Systems.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\" 3. Neither the name of the University nor the names of its contributors
+.\"    may be used to endorse or promote products derived from this software
+.\"    without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.Dd $Mdocdate: June 5 2013 $
+.Dt WCSCSPN 3
+.Os
+.Sh NAME
+.Nm wcscspn
+.Nd span the complement of a wide string
+.Sh SYNOPSIS
+.In wchar.h
+.Ft size_t
+.Fn wcscspn "const wchar_t *s" "const wchar_t *charset"
+.Sh DESCRIPTION
+The
+.Fn wcscspn
+function spans the initial part of the wide string
+.Fa s
+as long as the wide characters from
+.Fa s
+do not occur in string
+.Fa charset
+(it spans the
+.Em complement
+of
+.Fa charset ) .
+.Sh RETURN VALUES
+The
+.Fn wcscspn
+function returns the number of wide characters spanned.
+.Sh SEE ALSO
+.Xr strcspn 3 ,
+.Xr wcschr 3 ,
+.Xr wcspbrk 3 ,
+.Xr wcsrchr 3 ,
+.Xr wcsspn 3 ,
+.Xr wcsstr 3 ,
+.Xr wcstok 3 ,
+.Xr wmemchr 3
+.Sh STANDARDS
+The
+.Fn wcscspn
+function conforms to
+.St -isoC-99
+and was first introduced in
+.St -isoC-amd1 .
+.Sh HISTORY
+The
+.Fn wcscspn
+function was ported from
+.Nx
+and first appeared in
+.Ox 3.8 .
diff --git a/src/lib/libc/string/wcscspn.c b/src/lib/libc/string/wcscspn.c
new file mode 100644
index 0000000000..cf40092465
--- /dev/null
+++ b/src/lib/libc/string/wcscspn.c
@@ -0,0 +1,53 @@
+/*      $OpenBSD: wcscspn.c,v 1.3 2005/08/08 08:05:37 espie Exp $       */
+/*      $NetBSD: wcscspn.c,v 1.2 2001/01/03 14:29:36 lukem Exp $        */
+
+/*-
+ * Copyright (c)1999 Citrus Project,
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ *      citrus Id: wcscspn.c,v 1.1 1999/12/29 21:47:45 tshiozak Exp
+ */
+
+#include <wchar.h>
+
+size_t
+wcscspn(const wchar_t *s, const wchar_t *set)
+{
+        const wchar_t *p;
+        const wchar_t *q;
+
+        p = s;
+        while (*p) {
+                q = set;
+                while (*q) {
+                        if (*p == *q)
+                                goto done;
+                        q++;
+                }
+                p++;
+        }
+
+done:
+        return (p - s);
+}
diff --git a/src/lib/libc/string/wcsdup.3 b/src/lib/libc/string/wcsdup.3
new file mode 100644
index 0000000000..588a2571db
--- /dev/null
+++ b/src/lib/libc/string/wcsdup.3
@@ -0,0 +1,97 @@
+.\"     $OpenBSD: wcsdup.3,v 1.4 2011/07/25 00:38:53 schwarze Exp $
+.\"     $NetBSD: wcsdup.3,v 1.3 2010/12/16 17:42:28 wiz Exp $
+.\"
+.\" Copyright (c) 1990, 1991, 1993
+.\"     The Regents of the University of California.  All rights reserved.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\" 3. Neither the name of the University nor the names of its contributors
+.\"    may be used to endorse or promote products derived from this software
+.\"    without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.\"     @(#)strdup.3    8.1 (Berkeley) 6/9/93
+.\"
+.Dd $Mdocdate: July 25 2011 $
+.Dt WCSDUP 3
+.Os
+.Sh NAME
+.Nm wcsdup
+.Nd save a copy of a wide string
+.Sh SYNOPSIS
+.In wchar.h
+.Ft wchar_t *
+.Fn wcsdup "const wchar_t *str"
+.Sh DESCRIPTION
+The
+.Fn wcsdup
+function
+allocates sufficient memory for a copy
+of the wide-character string
+.Fa str ,
+does the copy, and returns a pointer to it.
+The pointer may subsequently be used as an
+argument to the function
+.Xr free 3 .
+.Pp
+If insufficient memory is available,
+.Dv NULL
+is returned.
+.Sh EXAMPLES
+The following will point
+.Va p
+to an allocated area of memory containing the nul-terminated string
+.Qq foobar :
+.Bd -literal -offset indent
+const char      *o = "foobar";
+wchar_t         *p, b[32];
+size_t           blen;
+
+blen = sizeof(b) / sizeof(b[0]);
+if (mbstowcs(b, o, blen) == (size_t)-1)
+        err(1, NULL);
+b[blen - 1] = 0;
+if ((p = wcsdup(b)) == NULL)
+        err(1, NULL);
+.Ed
+.Sh ERRORS
+The
+.Fn wcsdup
+function may fail and set the external variable
+.Va errno
+for any of the errors specified for the library function
+.Xr malloc 3 .
+.Sh SEE ALSO
+.Xr free 3 ,
+.Xr malloc 3 ,
+.Xr strdup 3
+.Sh STANDARDS
+The
+.Fn wcsdup
+function conforms to
+.St -p1003.1-2008 .
+.Sh HISTORY
+The
+.Fn wcsdup
+function was ported from
+.Nx
+and first appeared in
+.Ox 5.0 .
diff --git a/src/lib/libc/string/wcsdup.c b/src/lib/libc/string/wcsdup.c
new file mode 100644
index 0000000000..57a328a8c2
--- /dev/null
+++ b/src/lib/libc/string/wcsdup.c
@@ -0,0 +1,31 @@
+/*      $OpenBSD: wcsdup.c,v 1.1 2011/07/04 04:37:34 nicm Exp $ */
+/*      $NetBSD: wcsdup.c,v 1.3 2008/05/26 13:17:48 haad Exp $  */
+
+/*
+ * Copyright (C) 2006 Aleksey Cheusov
+ *
+ * This material is provided "as is", with absolutely no warranty expressed
+ * or implied. Any use is at your own risk.
+ *
+ * Permission to use or copy this software for any purpose is hereby granted
+ * without fee. Permission to modify the code and to distribute modified
+ * code is also granted without any restrictions.
+ */
+
+#include <stdlib.h>
+#include <wchar.h>
+
+wchar_t *
+wcsdup(const wchar_t *str)
+{
+        wchar_t *copy;
+        size_t len;
+
+        len = wcslen(str) + 1;
+        copy = malloc(len * sizeof (wchar_t));
+
+        if (!copy)
+                return (NULL);
+
+        return (wmemcpy(copy, str, len));
+}
diff --git a/src/lib/libc/string/wcslcat.c b/src/lib/libc/string/wcslcat.c
new file mode 100644
index 0000000000..ee8ff3c343
--- /dev/null
+++ b/src/lib/libc/string/wcslcat.c
@@ -0,0 +1,56 @@
+/*      $OpenBSD: wcslcat.c,v 1.4 2011/07/24 15:21:28 millert Exp $     */
+/*      $NetBSD: wcslcat.c,v 1.2 2001/01/03 14:33:02 lukem Exp $        */
+
+/*
+ * Copyright (c) 1998 Todd C. Miller <Todd.Miller@courtesan.com>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include <sys/types.h>
+#include <wchar.h>
+
+/*
+ * Appends src to string dst of size siz (unlike wcsncat, siz is the
+ * full size of dst, not space left).  At most siz-1 characters
+ * will be copied.  Always NUL terminates (unless siz <= wcslen(dst)).
+ * Returns wcslen(src) + MIN(siz, wcslen(initial dst)).
+ * If retval >= siz, truncation occurred.
+ */
+size_t
+wcslcat(wchar_t *dst, const wchar_t *src, size_t siz)
+{
+        wchar_t *d = dst;
+        const wchar_t *s = src;
+        size_t n = siz;
+        size_t dlen;
+
+        /* Find the end of dst and adjust bytes left but don't go past end */
+        while (n-- != 0 && *d != '\0')
+                d++;
+        dlen = d - dst;
+        n = siz - dlen;
+
+        if (n == 0)
+                return(dlen + wcslen(s));
+        while (*s != '\0') {
+                if (n != 1) {
+                        *d++ = *s;
+                        n--;
+                }
+                s++;
+        }
+        *d = '\0';
+
+        return(dlen + (s - src));       /* count does not include NUL */
+}
diff --git a/src/lib/libc/string/wcslcpy.3 b/src/lib/libc/string/wcslcpy.3
new file mode 100644
index 0000000000..7af6c74614
--- /dev/null
+++ b/src/lib/libc/string/wcslcpy.3
@@ -0,0 +1,153 @@
+.\"     $OpenBSD: wcslcpy.3,v 1.6 2013/09/25 21:49:31 millert Exp $
+.\"
+.\" Copyright (c) 1998, 2000 Todd C. Miller <Todd.Miller@courtesan.com>
+.\"
+.\" Permission to use, copy, modify, and distribute this software for any
+.\" purpose with or without fee is hereby granted, provided that the above
+.\" copyright notice and this permission notice appear in all copies.
+.\"
+.\" THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+.\" WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+.\" MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+.\" ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+.\" WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+.\" ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+.\" OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+.\"
+.Dd $Mdocdate: September 25 2013 $
+.Dt WCSLCPY 3
+.Os
+.Sh NAME
+.Nm wcslcpy ,
+.Nm wcslcat
+.Nd size-bounded wide string copying and concatenation
+.Sh SYNOPSIS
+.In wchar.h
+.Ft size_t
+.Fn wcslcpy "wchar_t *dst" "const wchar_t *src" "size_t size"
+.Ft size_t
+.Fn wcslcat "wchar_t *dst" "const wchar_t *src" "size_t size"
+.Sh DESCRIPTION
+The
+.Fn wcslcpy
+and
+.Fn wcslcat
+functions copy and concatenate wide strings respectively.
+They are designed to be safer, more consistent, and less error prone
+replacements for
+.Xr wcsncpy 3
+and
+.Xr wcsncat 3 .
+Unlike those functions,
+.Fn wcslcpy
+and
+.Fn wcslcat
+take the full size of the buffer (not just the length) and guarantee to
+terminate the result with a null wide character (as long as
+.Fa size
+is larger than 0 or, in the case of
+.Fn wcslcat ,
+as long as there is at least one wide character free in
+.Fa dst ) .
+Note that a wide character for the null wide character should be included in
+.Fa size .
+Also note that
+.Fn wcslcpy
+and
+.Fn wcslcat
+only operate on wide strings that are terminated with a null wide character
+(L'\e0').
+This means that for
+.Fn wcslcpy
+.Fa src
+must be terminated with a null wide character and for
+.Fn wcslcat
+both
+.Fa src
+and
+.Fa dst
+must be terminated with a null wide character.
+.Pp
+The
+.Fn wcslcpy
+function copies up to
+.Fa size
+\(mi 1 wide characters from the wide string
+.Fa src
+to
+.Fa dst ,
+terminating the result with a null wide character.
+.Pp
+The
+.Fn wcslcat
+function appends the wide string
+.Fa src
+to the end of
+.Fa dst .
+It will append at most
+.Fa size
+\(mi wcslen(dst) \(mi 1 wide characters, terminating the result with a null
+wide character.
+.Pp
+If the
+.Fa src
+and
+.Fa dst
+strings overlap, the behavior is undefined.
+.Sh RETURN VALUES
+The
+.Fn wcslcpy
+and
+.Fn wcslcat
+functions return the total length of the wide string they tried to create.
+For
+.Fn wcslcpy
+that means the length of
+.Fa src .
+For
+.Fn wcslcat
+that means the initial length of
+.Fa dst
+plus
+the length of
+.Fa src .
+While this may seem somewhat confusing, it was done to make
+truncation detection simple.
+.Pp
+Note, however, that if
+.Fn wcslcat
+traverses
+.Fa size
+wide characters without finding a null wide character, the length of the
+string is considered to be
+.Fa size
+and the destination wide string will not be terminated with a null wide
+character (since there was no space for it).
+This keeps
+.Fn wcslcat
+from running off the end of a wide string.
+In practice this should not happen (as it means that either
+.Fa size
+is incorrect or that
+.Fa dst
+is not terminated with a null wide character).
+The check exists to prevent potential security problems in incorrect code.
+.Sh SEE ALSO
+.Xr strlcpy 3 ,
+.Xr swprintf 3 ,
+.Xr wcsncat 3 ,
+.Xr wcsncpy 3
+.Sh HISTORY
+The
+.Fn wcslcpy
+and
+.Fn wcslcat
+functions first appeared in
+.Ox 3.8 .
+.Sh AUTHORS
+The
+.Fn wcslcpy
+and
+.Fn wcslcat
+functions are based on code by
+.An Todd C. Miller Aq Mt Todd.Miller@courtesan.com .
diff --git a/src/lib/libc/string/wcslcpy.c b/src/lib/libc/string/wcslcpy.c
new file mode 100644
index 0000000000..f49936a885
--- /dev/null
+++ b/src/lib/libc/string/wcslcpy.c
@@ -0,0 +1,52 @@
+/*      $OpenBSD: wcslcpy.c,v 1.5 2011/07/24 15:21:28 millert Exp $     */
+/*      $NetBSD: wcslcpy.c,v 1.2 2001/01/03 14:33:02 lukem Exp $        */
+
+/*
+ * Copyright (c) 1998 Todd C. Miller <Todd.Miller@courtesan.com>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include <sys/types.h>
+#include <wchar.h>
+
+/*
+ * Copy src to string dst of size siz.  At most siz-1 characters
+ * will be copied.  Always NUL terminates (unless siz == 0).
+ * Returns wcslen(src); if retval >= siz, truncation occurred.
+ */
+size_t
+wcslcpy(wchar_t *dst, const wchar_t *src, size_t siz)
+{
+        wchar_t *d = dst;
+        const wchar_t *s = src;
+        size_t n = siz;
+
+        /* Copy as many bytes as will fit */
+        if (n != 0) {
+                while (--n != 0) {
+                        if ((*d++ = *s++) == '\0')
+                                break;
+                }
+        }
+
+        /* Not enough room in dst, add NUL and traverse rest of src */
+        if (n == 0) {
+                if (siz != 0)
+                        *d = '\0';              /* NUL-terminate dst */
+                while (*s++)
+                        ;
+        }
+
+        return(s - src - 1);    /* count does not include NUL */
+}
diff --git a/src/lib/libc/string/wcslen.3 b/src/lib/libc/string/wcslen.3
new file mode 100644
index 0000000000..12f81763ba
--- /dev/null
+++ b/src/lib/libc/string/wcslen.3
@@ -0,0 +1,70 @@
+.\"     $OpenBSD: wcslen.3,v 1.3 2013/06/05 03:39:23 tedu Exp $
+.\"
+.\" Copyright (c) 1990, 1991 The Regents of the University of California.
+.\" All rights reserved.
+.\"
+.\" This code is derived from software contributed to Berkeley by
+.\" Chris Torek and the American National Standards Committee X3,
+.\" on Information Processing Systems.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\" 3. Neither the name of the University nor the names of its contributors
+.\"    may be used to endorse or promote products derived from this software
+.\"    without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.Dd $Mdocdate: June 5 2013 $
+.Dt WCSLEN 3
+.Os
+.Sh NAME
+.Nm wcslen
+.Nd find length of a wide string
+.Sh SYNOPSIS
+.In wchar.h
+.Ft size_t
+.Fn wcslen "const wchar_t *s"
+.Sh DESCRIPTION
+The
+.Fn wcslen
+function computes the length of the wide string
+.Fa s .
+.Sh RETURN VALUES
+The
+.Fn wcslen
+function returns the number of wide characters that precede the terminating
+null wide character.
+.Sh SEE ALSO
+.Xr strlen 3 ,
+.Xr wcswidth 3
+.Sh STANDARDS
+The
+.Fn wcslen
+function conforms to
+.St -isoC-99
+and was first introduced in
+.St -isoC-amd1 .
+.Sh HISTORY
+The
+.Fn wcslen
+function was ported from
+.Nx
+and first appeared in
+.Ox 3.8 .
diff --git a/src/lib/libc/string/wcslen.c b/src/lib/libc/string/wcslen.c
new file mode 100644
index 0000000000..c1de4a271e
--- /dev/null
+++ b/src/lib/libc/string/wcslen.c
@@ -0,0 +1,44 @@
+/*      $OpenBSD: wcslen.c,v 1.3 2005/08/08 08:05:37 espie Exp $        */
+/*      $NetBSD: wcslen.c,v 1.2 2001/01/03 14:29:36 lukem Exp $ */
+
+/*-
+ * Copyright (c)1999 Citrus Project,
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ *      citrus Id: wcslen.c,v 1.1 1999/12/29 21:47:45 tshiozak Exp
+ */
+
+#include <wchar.h>
+
+size_t
+wcslen(const wchar_t *s)
+{
+        const wchar_t *p;
+
+        p = s;
+        while (*p)
+                p++;
+
+        return p - s;
+}
diff --git a/src/lib/libc/string/wcsncat.c b/src/lib/libc/string/wcsncat.c
new file mode 100644
index 0000000000..eb9a701514
--- /dev/null
+++ b/src/lib/libc/string/wcsncat.c
@@ -0,0 +1,52 @@
+/*      $OpenBSD: wcsncat.c,v 1.3 2005/08/08 08:05:37 espie Exp $       */
+/*      $NetBSD: wcsncat.c,v 1.2 2001/01/03 14:29:36 lukem Exp $        */
+
+/*-
+ * Copyright (c)1999 Citrus Project,
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ *      citrus Id: wcsncat.c,v 1.1 1999/12/29 21:47:45 tshiozak Exp
+ */
+
+#include <wchar.h>
+
+wchar_t *
+wcsncat(wchar_t *s1, const wchar_t *s2, size_t n)
+{
+        wchar_t *p;
+        wchar_t *q;
+        const wchar_t *r;
+
+        p = s1;
+        while (*p)
+                p++;
+        q = p;
+        r = s2;
+        while (*r && n) {
+                *q++ = *r++;
+                n--;
+        }
+        *q = '\0';
+        return s1;
+}
diff --git a/src/lib/libc/string/wcsncmp.c b/src/lib/libc/string/wcsncmp.c
new file mode 100644
index 0000000000..fb3c7057cf
--- /dev/null
+++ b/src/lib/libc/string/wcsncmp.c
@@ -0,0 +1,52 @@
+/*      $OpenBSD: wcsncmp.c,v 1.4 2005/08/08 08:05:37 espie Exp $       */
+/*      $NetBSD: wcsncmp.c,v 1.5 2003/08/07 16:43:54 agc Exp $  */
+
+/*
+ * Copyright (c) 1989, 1993
+ *      The Regents of the University of California.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <wchar.h>
+#include "locale/runetype.h"
+
+int
+wcsncmp(const wchar_t *s1, const wchar_t *s2, size_t n)
+{
+
+        if (n == 0)
+                return (0);
+        do {
+                if (*s1 != *s2++) {
+                        /* XXX assumes wchar_t = int */
+                        return (*(const rune_t *)s1 -
+                            *(const rune_t *)--s2);
+                }
+                if (*s1++ == 0)
+                        break;
+        } while (--n != 0);
+        return (0);
+}
diff --git a/src/lib/libc/string/wcsncpy.c b/src/lib/libc/string/wcsncpy.c
new file mode 100644
index 0000000000..107696f1de
--- /dev/null
+++ b/src/lib/libc/string/wcsncpy.c
@@ -0,0 +1,50 @@
+/*      $OpenBSD: wcsncpy.c,v 1.4 2006/04/17 18:05:35 espie Exp $       */
+/*      $NetBSD: wcsncpy.c,v 1.2 2001/01/03 14:29:37 lukem Exp $        */
+
+/*-
+ * Copyright (c)1999 Citrus Project,
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ *      citrus Id: wcsncpy.c,v 1.1 1999/12/29 21:47:45 tshiozak Exp
+ */
+
+#include <wchar.h>
+
+wchar_t *
+wcsncpy(wchar_t *s1, const wchar_t *s2, size_t n)
+{
+        wchar_t *p;
+
+        p = s1;
+        while (n && *s2) {
+                *p++ = *s2++;
+                n--;
+        }
+        while (n) {
+                *p++ = L'\0';
+                n--;
+        }
+
+        return s1;
+}
diff --git a/src/lib/libc/string/wcspbrk.3 b/src/lib/libc/string/wcspbrk.3
new file mode 100644
index 0000000000..602bfdc3d6
--- /dev/null
+++ b/src/lib/libc/string/wcspbrk.3
@@ -0,0 +1,81 @@
+.\"     $OpenBSD: wcspbrk.3,v 1.3 2013/06/05 03:39:23 tedu Exp $
+.\"
+.\" Copyright (c) 1990, 1991 The Regents of the University of California.
+.\" All rights reserved.
+.\"
+.\" This code is derived from software contributed to Berkeley by
+.\" Chris Torek and the American National Standards Committee X3,
+.\" on Information Processing Systems.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\" 3. Neither the name of the University nor the names of its contributors
+.\"    may be used to endorse or promote products derived from this software
+.\"    without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.Dd $Mdocdate: June 5 2013 $
+.Dt WCSPBRK 3
+.Os
+.Sh NAME
+.Nm wcspbrk
+.Nd locate multiple wide characters in a wide string
+.Sh SYNOPSIS
+.In wchar.h
+.Ft wchar_t *
+.Fn wcspbrk "const wchar_t *s" "const wchar_t *charset"
+.Sh DESCRIPTION
+The
+.Fn wcspbrk
+function locates in the wide string
+.Fa s
+the first occurrence of any wide character in the wide string
+.Fa charset
+and returns a pointer to this wide character.
+If no wide characters from
+.Fa charset
+occur anywhere in
+.Fa s ,
+.Fn wcspbrk
+returns
+.Dv NULL .
+.Sh SEE ALSO
+.Xr strpbrk 3 ,
+.Xr wcschr 3 ,
+.Xr wcscspn 3 ,
+.Xr wcsrchr 3 ,
+.Xr wcsspn 3 ,
+.Xr wcsstr 3 ,
+.Xr wcstok 3 ,
+.Xr wmemchr 3
+.Sh STANDARDS
+The
+.Fn wcspbrk
+function conforms to
+.St -isoC-99
+and was first introduced in
+.St -isoC-amd1 .
+.Sh HISTORY
+The
+.Fn wcspbrk
+function was ported from
+.Nx
+and first appeared in
+.Ox 3.8 .
diff --git a/src/lib/libc/string/wcspbrk.c b/src/lib/libc/string/wcspbrk.c
new file mode 100644
index 0000000000..1923abfc89
--- /dev/null
+++ b/src/lib/libc/string/wcspbrk.c
@@ -0,0 +1,53 @@
+/*      $OpenBSD: wcspbrk.c,v 1.3 2005/08/08 08:05:37 espie Exp $       */
+/*      $NetBSD: wcspbrk.c,v 1.2 2001/01/03 14:29:37 lukem Exp $        */
+
+/*-
+ * Copyright (c)1999 Citrus Project,
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ *      citrus Id: wcspbrk.c,v 1.2 2000/12/21 05:07:25 itojun Exp
+ */
+
+#include <wchar.h>
+
+wchar_t *
+wcspbrk(const wchar_t *s, const wchar_t *set)
+{
+        const wchar_t *p;
+        const wchar_t *q;
+
+        p = s;
+        while (*p) {
+                q = set;
+                while (*q) {
+                        if (*p == *q) {
+                                /* LINTED interface specification */
+                                return (wchar_t *)p;
+                        }
+                        q++;
+                }
+                p++;
+        }
+        return NULL;
+}
diff --git a/src/lib/libc/string/wcsrchr.3 b/src/lib/libc/string/wcsrchr.3
new file mode 100644
index 0000000000..d4a2e7cf78
--- /dev/null
+++ b/src/lib/libc/string/wcsrchr.3
@@ -0,0 +1,85 @@
+.\"     $OpenBSD: wcsrchr.3,v 1.3 2013/06/05 03:39:23 tedu Exp $
+.\"
+.\" Copyright (c) 1990, 1991 The Regents of the University of California.
+.\" All rights reserved.
+.\"
+.\" This code is derived from software contributed to Berkeley by
+.\" Chris Torek and the American National Standards Committee X3,
+.\" on Information Processing Systems.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\" 3. Neither the name of the University nor the names of its contributors
+.\"    may be used to endorse or promote products derived from this software
+.\"    without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.Dd $Mdocdate: June 5 2013 $
+.Dt WCSRCHR 3
+.Os
+.Sh NAME
+.Nm wcsrchr
+.Nd locate last occurrence of a wide character in a wide string
+.Sh SYNOPSIS
+.In wchar.h
+.Ft wchar_t *
+.Fn wcsrchr "const wchar_t *s" "wchar_t c"
+.Sh DESCRIPTION
+The
+.Fn wcsrchr
+function locates the last occurrence of the wide character
+.Fa c
+in the wide string
+.Fa s .
+The terminating null wide character is considered part of the wide string.
+If
+.Fa c
+is the null wide character (L'\e0'),
+.Fn wcsrchr
+locates the terminating null wide character.
+.Sh RETURN VALUES
+The
+.Fn wcsrchr
+function returns a pointer to the located wide character or
+.Dv NULL
+if the wide character does not appear in the wide string.
+.Sh SEE ALSO
+.Xr strrchr 3 ,
+.Xr wcschr 3 ,
+.Xr wcscspn 3 ,
+.Xr wcspbrk 3 ,
+.Xr wcsspn 3 ,
+.Xr wcsstr 3 ,
+.Xr wcstok 3 ,
+.Xr wmemchr 3
+.Sh STANDARDS
+The
+.Fn wcsrchr
+function conforms to
+.St -isoC-99
+and was first introduced in
+.St -isoC-amd1 .
+.Sh HISTORY
+The
+.Fn wcsrchr
+function was ported from
+.Nx
+and first appeared in
+.Ox 3.8 .
diff --git a/src/lib/libc/string/wcsrchr.c b/src/lib/libc/string/wcsrchr.c
new file mode 100644
index 0000000000..3433310c56
--- /dev/null
+++ b/src/lib/libc/string/wcsrchr.c
@@ -0,0 +1,50 @@
+/*      $OpenBSD: wcsrchr.c,v 1.3 2005/08/08 08:05:37 espie Exp $       */
+/*      $NetBSD: wcsrchr.c,v 1.2 2001/01/03 14:29:37 lukem Exp $        */
+
+/*-
+ * Copyright (c)1999 Citrus Project,
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ *      citrus Id: wcsrchr.c,v 1.2 2000/12/21 05:07:25 itojun Exp
+ */
+
+#include <wchar.h>
+
+wchar_t *
+wcsrchr(const wchar_t *s, wchar_t c)
+{
+        const wchar_t *p;
+
+        p = s;
+        while (*p)
+                p++;
+        while (s <= p) {
+                if (*p == c) {
+                        /* LINTED interface specification */
+                        return (wchar_t *)p;
+                }
+                p--;
+        }
+        return NULL;
+}
diff --git a/src/lib/libc/string/wcsspn.3 b/src/lib/libc/string/wcsspn.3
new file mode 100644
index 0000000000..3be82344dd
--- /dev/null
+++ b/src/lib/libc/string/wcsspn.3
@@ -0,0 +1,79 @@
+.\"     $OpenBSD: wcsspn.3,v 1.3 2013/06/05 03:39:23 tedu Exp $
+.\"
+.\" Copyright (c) 1990, 1991 The Regents of the University of California.
+.\" All rights reserved.
+.\"
+.\" This code is derived from software contributed to Berkeley by
+.\" Chris Torek and the American National Standards Committee X3,
+.\" on Information Processing Systems.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\" 3. Neither the name of the University nor the names of its contributors
+.\"    may be used to endorse or promote products derived from this software
+.\"    without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.Dd $Mdocdate: June 5 2013 $
+.Dt WCSSPN 3
+.Os
+.Sh NAME
+.Nm wcsspn
+.Nd span a wide string
+.Sh SYNOPSIS
+.In wchar.h
+.Ft size_t
+.Fn wcsspn "const wchar_t *s" "const wchar_t *charset"
+.Sh DESCRIPTION
+The
+.Fn wcsspn
+function spans the initial part of the wide string
+.Fa s
+as long as the wide characters from
+.Fa s
+occur in the wide string
+.Fa charset .
+.Sh RETURN VALUES
+The
+.Fn wcsspn
+function returns the number of wide characters spanned.
+.Sh SEE ALSO
+.Xr strspn 3 ,
+.Xr wcschr 3 ,
+.Xr wcscspn 3 ,
+.Xr wcspbrk 3 ,
+.Xr wcsrchr 3 ,
+.Xr wcsstr 3 ,
+.Xr wcstok 3 ,
+.Xr wmemchr 3
+.Sh STANDARDS
+The
+.Fn wcsspn
+function conforms to
+.St -isoC-99
+and was first introduced in
+.St -isoC-amd1 .
+.Sh HISTORY
+The
+.Fn wcsspn
+function was ported from
+.Nx
+and first appeared in
+.Ox 3.8 .
diff --git a/src/lib/libc/string/wcsspn.c b/src/lib/libc/string/wcsspn.c
new file mode 100644
index 0000000000..5162fa0763
--- /dev/null
+++ b/src/lib/libc/string/wcsspn.c
@@ -0,0 +1,55 @@
+/*      $OpenBSD: wcsspn.c,v 1.3 2005/08/08 08:05:37 espie Exp $        */
+/*      $NetBSD: wcsspn.c,v 1.3 2001/09/21 16:09:15 yamt Exp $  */
+
+/*-
+ * Copyright (c)1999,2001 Citrus Project,
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ *      $Citrus: xpg4dl/FreeBSD/lib/libc/string/wcsspn.c,v 1.3 2001/09/21 16:06:43 yamt Exp $
+ */
+
+#include <wchar.h>
+
+size_t
+wcsspn(const wchar_t *s, const wchar_t *set)
+{
+        const wchar_t *p;
+        const wchar_t *q;
+
+        p = s;
+        while (*p) {
+                q = set;
+                while (*q) {
+                        if (*p == *q)
+                                break;
+                        q++;
+                }
+                if (!*q)
+                        goto done;
+                p++;
+        }
+
+done:
+        return (p - s);
+}
diff --git a/src/lib/libc/string/wcsstr.3 b/src/lib/libc/string/wcsstr.3
new file mode 100644
index 0000000000..203a76ded3
--- /dev/null
+++ b/src/lib/libc/string/wcsstr.3
@@ -0,0 +1,88 @@
+.\"     $OpenBSD: wcsstr.3,v 1.3 2013/06/05 03:39:23 tedu Exp $
+.\"
+.\" Copyright (c) 1990, 1991 The Regents of the University of California.
+.\" All rights reserved.
+.\"
+.\" This code is derived from software contributed to Berkeley by
+.\" Chris Torek and the American National Standards Committee X3,
+.\" on Information Processing Systems.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\" 3. Neither the name of the University nor the names of its contributors
+.\"    may be used to endorse or promote products derived from this software
+.\"    without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.Dd $Mdocdate: June 5 2013 $
+.Dt WCSSTR 3
+.Os
+.Sh NAME
+.Nm wcsstr
+.Nd locate a wide substring in a wide string
+.Sh SYNOPSIS
+.In wchar.h
+.Ft wchar_t *
+.Fn wcsstr "const wchar_t *big" "const wchar_t *little"
+.Sh DESCRIPTION
+The
+.Fn wcsstr
+function locates the first occurrence of the wide string
+.Fa little
+in the wide string
+.Fa big .
+.Pp
+If
+.Fa little
+is an empty wide string,
+.Fa big
+is returned;
+if
+.Fa little
+occurs nowhere in
+.Fa big ,
+.Dv NULL
+is returned;
+otherwise a pointer to the first wide character of the first occurrence of
+.Fa little
+is returned.
+.Sh SEE ALSO
+.Xr strstr 3 ,
+.Xr wcschr 3 ,
+.Xr wcscspn 3 ,
+.Xr wcspbrk 3 ,
+.Xr wcsrchr 3 ,
+.Xr wcsspn 3 ,
+.Xr wcstok 3 ,
+.Xr wmemchr 3
+.Sh STANDARDS
+The
+.Fn wcsstr
+function conforms to
+.St -isoC-99
+and was first introduced in
+.St -isoC-amd1 .
+.Sh HISTORY
+The
+.Fn wcsstr
+function was ported from
+.Nx
+and first appeared in
+.Ox 3.8 .
diff --git a/src/lib/libc/string/wcsstr.c b/src/lib/libc/string/wcsstr.c
new file mode 100644
index 0000000000..669e340280
--- /dev/null
+++ b/src/lib/libc/string/wcsstr.c
@@ -0,0 +1,70 @@
+/*      $OpenBSD: wcsstr.c,v 1.3 2005/08/08 08:05:37 espie Exp $        */
+/*      $NetBSD: wcsstr.c,v 1.3 2003/03/05 20:18:17 tshiozak Exp $      */
+
+/*-
+ * Copyright (c)1999 Citrus Project,
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ *      citrus Id: wcsstr.c,v 1.2 2000/12/21 05:07:25 itojun Exp
+ */
+
+#include <wchar.h>
+
+wchar_t *
+#ifdef WCSWCS
+wcswcs(const wchar_t *big, const wchar_t *little)
+#else
+wcsstr(const wchar_t *big, const wchar_t *little)
+#endif
+{
+        const wchar_t *p;
+        const wchar_t *q;
+        const wchar_t *r;
+
+        if (!*little) {
+                /* LINTED interface specification */
+                return (wchar_t *)big;
+        }
+        if (wcslen(big) < wcslen(little))
+                return NULL;
+
+        p = big;
+        q = little;
+        while (*p) {
+                q = little;
+                r = p;
+                while (*q) {
+                        if (*r != *q)
+                                break;
+                        q++;
+                        r++;
+                }
+                if (!*q) {
+                        /* LINTED interface specification */
+                        return (wchar_t *)p;
+                }
+                p++;
+        }
+        return NULL;
+}
diff --git a/src/lib/libc/string/wcstok.3 b/src/lib/libc/string/wcstok.3
new file mode 100644
index 0000000000..33ba1318a1
--- /dev/null
+++ b/src/lib/libc/string/wcstok.3
@@ -0,0 +1,151 @@
+.\"     $OpenBSD: wcstok.3,v 1.7 2011/07/25 00:38:53 schwarze Exp $
+.\"
+.\" $NetBSD: wcstok.3,v 1.3 2003/09/08 17:54:33 wiz Exp $
+.\"
+.\" Copyright (c) 1998 Softweyr LLC.  All rights reserved.
+.\"
+.\" strtok_r, from Berkeley strtok
+.\" Oct 13, 1998 by Wes Peters <wes@softweyr.com>
+.\"
+.\" Copyright (c) 1988, 1991, 1993
+.\"     The Regents of the University of California.  All rights reserved.
+.\"
+.\" This code is derived from software contributed to Berkeley by
+.\" the American National Standards Committee X3, on Information
+.\" Processing Systems.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\"
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notices, this list of conditions and the following disclaimer.
+.\"
+.\" 2. Redistributions in binary form must reproduce the above
+.\"    copyright notices, this list of conditions and the following
+.\"    disclaimer in the documentation and/or other materials provided
+.\"    with the distribution.
+.\"
+.\" 3. All advertising materials mentioning features or use of this
+.\"    software must display the following acknowledgement:
+.\"
+.\"     This product includes software developed by Softweyr LLC, the
+.\"      University of California, Berkeley, and its contributors.
+.\"
+.\" 4. Neither the name of Softweyr LLC, the University nor the names
+.\"    of its contributors may be used to endorse or promote products
+.\"    derived from this software without specific prior written
+.\"    permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY SOFTWEYR LLC, THE REGENTS AND
+.\" CONTRIBUTORS ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
+.\" INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+.\" MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+.\" DISCLAIMED.  IN NO EVENT SHALL SOFTWEYR LLC, THE REGENTS, OR
+.\" CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+.\" SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+.\" LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+.\" USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+.\" ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+.\" OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+.\" OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.\" Original version ID:
+.\" FreeBSD: src/lib/libc/string/wcstok.3,v 1.4 2002/10/15 09:49:54 tjr Exp
+.\"
+.Dd $Mdocdate: July 25 2011 $
+.Dt WCSTOK 3
+.Os
+.Sh NAME
+.Nm wcstok
+.Nd split wide-character string into tokens
+.Sh SYNOPSIS
+.In wchar.h
+.Ft wchar_t *
+.Fn wcstok "wchar_t * restrict str" "const wchar_t * restrict sep" "wchar_t ** restrict last"
+.Sh DESCRIPTION
+The
+.Fn wcstok
+function
+is used to isolate sequential tokens in a NUL-terminated wide-character
+string,
+.Fa str .
+These tokens are separated in the string by at least one of the
+characters in
+.Fa sep .
+The first time that
+.Fn wcstok
+is called,
+.Fa str
+should be specified; subsequent calls, wishing to obtain further tokens
+from the same string, should pass a null pointer instead.
+The separator string,
+.Fa sep ,
+must be supplied each time, and may change between calls.
+The context pointer
+.Fa last
+must be provided on each call.
+.Pp
+The
+.Fn wcstok
+function is the wide-character counterpart of the
+.Xr strtok_r 3
+function.
+.Pp
+Since
+.Fn wcstok
+modifies the string,
+.Fa str
+should not point to an area in the initialized data segment.
+.Sh RETURN VALUES
+The
+.Fn wcstok
+function
+returns a pointer to the beginning of each subsequent token in the string,
+after replacing the token itself with a NUL wide character (L'\e0').
+When no more tokens remain, a null pointer is returned.
+.Sh EXAMPLES
+The following code fragment splits a wide-character string on
+.Tn ASCII
+space, tab, and newline characters and writes the tokens to
+standard output:
+.Bd -literal -offset indent
+const wchar_t *seps = L" \et\en";
+wchar_t *last, *tok, text[] = L" \enone\ettwo\et\etthree  \en";
+
+for (tok = wcstok(text, seps, &last); tok != NULL;
+    tok = wcstok(NULL, seps, &last))
+        wprintf(L"%ls\en", tok);
+.Ed
+.Sh SEE ALSO
+.Xr strtok 3 ,
+.Xr wcschr 3 ,
+.Xr wcscspn 3 ,
+.Xr wcspbrk 3 ,
+.Xr wcsrchr 3 ,
+.Xr wcsspn 3 ,
+.Xr wcsstr 3 ,
+.Xr wmemchr 3
+.Sh STANDARDS
+The
+.Fn wcstok
+function
+conforms to
+.St -isoC-99 .
+.Sh HISTORY
+The
+.Fn wcstok
+function was ported from
+.Nx
+and first appeared in
+.Ox 3.8 .
+.Pp
+Some early implementations of
+.Fn wcstok
+omit the
+context pointer argument,
+.Fa last ,
+and maintain state across calls in a static variable like
+.Xr strtok 3
+does.
diff --git a/src/lib/libc/string/wcstok.c b/src/lib/libc/string/wcstok.c
new file mode 100644
index 0000000000..bc1ac3e8cb
--- /dev/null
+++ b/src/lib/libc/string/wcstok.c
@@ -0,0 +1,93 @@
+/*      $OpenBSD: wcstok.c,v 1.3 2005/08/08 08:05:37 espie Exp $        */
+/* $NetBSD: wcstok.c,v 1.3 2003/07/10 08:50:48 tshiozak Exp $ */
+
+/*-
+ * Copyright (c) 1998 Softweyr LLC.  All rights reserved.
+ *
+ * strtok_r, from Berkeley strtok
+ * Oct 13, 1998 by Wes Peters <wes@softweyr.com>
+ *
+ * Copyright (c) 1988, 1993
+ *      The Regents of the University of California.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notices, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notices, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *      This product includes software developed by Softweyr LLC, the
+ *      University of California, Berkeley, and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY SOFTWEYR LLC, THE REGENTS AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+ * PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL SOFTWEYR LLC, THE
+ * REGENTS, OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
+ * TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * Original version ID:
+ * FreeBSD: src/lib/libc/string/wcstok.c,v 1.1 2002/09/07 08:16:57 tjr Exp
+ */
+
+#include <wchar.h>
+
+wchar_t *
+wcstok(wchar_t * __restrict s, const wchar_t * __restrict delim, 
+    wchar_t ** __restrict last)
+{
+        const wchar_t *spanp;
+        wchar_t c, sc;
+        wchar_t *tok;
+
+        if (s == NULL && (s = *last) == NULL)
+                return (NULL);
+
+        /*
+         * Skip (span) leading delimiters (s += wcsspn(s, delim), sort of).
+         */
+cont:
+        c = *s++;
+        for (spanp = delim; (sc = *spanp++) != L'\0';) {
+                if (c == sc)
+                        goto cont;
+        }
+
+        if (c == L'\0') {       /* no non-delimiter characters */
+                *last = NULL;
+                return (NULL);
+        }
+        tok = s - 1;
+
+        /*
+         * Scan token (scan for delimiters: s += wcscspn(s, delim), sort of).
+         * Note that delim must have one NUL; we stop if we see that, too.
+         */
+        for (;;) {
+                c = *s++;
+                spanp = delim;
+                do {
+                        if ((sc = *spanp++) == c) {
+                                if (c == L'\0')
+                                        s = NULL;
+                                else
+                                        s[-1] = L'\0';
+                                *last = s;
+                                return (tok);
+                        }
+                } while (sc != L'\0');
+        }
+        /* NOTREACHED */
+}
diff --git a/src/lib/libc/string/wcswcs.c b/src/lib/libc/string/wcswcs.c
new file mode 100644
index 0000000000..bd35605547
--- /dev/null
+++ b/src/lib/libc/string/wcswcs.c
@@ -0,0 +1,5 @@
+/*      $OpenBSD: wcswcs.c,v 1.1 2005/04/13 16:35:58 espie Exp $        */
+/* $NetBSD: wcswcs.c,v 1.1 2003/03/05 20:18:17 tshiozak Exp $ */
+
+#define WCSWCS
+#include "wcsstr.c"
diff --git a/src/lib/libc/string/wcswidth.3 b/src/lib/libc/string/wcswidth.3
new file mode 100644
index 0000000000..a2a5b2df86
--- /dev/null
+++ b/src/lib/libc/string/wcswidth.3
@@ -0,0 +1,69 @@
+.\"     $OpenBSD: wcswidth.3,v 1.2 2011/07/25 00:38:53 schwarze Exp $
+.\"
+.\" Copyright (c) 2002 Tim J. Robbins
+.\" All rights reserved.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.Dd $Mdocdate: July 25 2011 $
+.Dt WCSWIDTH 3
+.Os
+.Sh NAME
+.Nm wcswidth
+.Nd number of column positions in wide-character string
+.Sh SYNOPSIS
+.In wchar.h
+.Ft int
+.Fn wcswidth "const wchar_t *pwcs" "size_t n"
+.Sh DESCRIPTION
+The
+.Fn wcswidth
+function determines the number of column positions required for the first
+.Fa n
+characters of
+.Fa pwcs ,
+or until a null wide character (L'\e0') is encountered.
+.Sh RETURN VALUES
+The
+.Fn wcswidth
+function returns 0 if
+.Fa pwcs
+is an empty string (L""),
+\-1 if a non-printing wide character is encountered,
+otherwise it returns the number of column positions occupied.
+.Sh SEE ALSO
+.Xr iswprint 3 ,
+.Xr strlen 3 ,
+.Xr wcslen 3 ,
+.Xr wcwidth 3
+.Sh STANDARDS
+The
+.Fn wcswidth
+function conforms to
+.St -p1003.1-2001 .
+.Sh HISTORY
+The
+.Fn wcswidth
+function was ported from
+.Nx
+and first appeared in
+.Ox 3.8 .
diff --git a/src/lib/libc/string/wcswidth.c b/src/lib/libc/string/wcswidth.c
new file mode 100644
index 0000000000..8ea1bdf6e6
--- /dev/null
+++ b/src/lib/libc/string/wcswidth.c
@@ -0,0 +1,50 @@
+/*      $OpenBSD: wcswidth.c,v 1.4 2011/04/04 18:16:24 stsp Exp $       */
+/*      $NetBSD: wcswidth.c,v 1.2 2001/01/03 14:29:37 lukem Exp $       */
+
+/*-
+ * Copyright (c)1999 Citrus Project,
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ *      citrus Id: wcswidth.c,v 1.1 1999/12/29 21:47:45 tshiozak Exp
+ */
+
+#include <wchar.h>
+
+int
+wcswidth(const wchar_t *s, size_t n)
+{
+        int w, q;
+
+        w = 0;
+        while (n && *s) {
+                q = wcwidth(*s);
+                if (q == -1)
+                        return (-1);
+                w += q;
+                s++;
+                n--;
+        }
+
+        return w;
+}
diff --git a/src/lib/libc/string/wmemchr.3 b/src/lib/libc/string/wmemchr.3
new file mode 100644
index 0000000000..17fbc9dbc5
--- /dev/null
+++ b/src/lib/libc/string/wmemchr.3
@@ -0,0 +1,81 @@
+.\"     $OpenBSD: wmemchr.3,v 1.10 2013/06/05 03:39:23 tedu Exp $
+.\"
+.\" Copyright (c) 1990, 1991 The Regents of the University of California.
+.\" All rights reserved.
+.\"
+.\" This code is derived from software contributed to Berkeley by
+.\" Chris Torek and the American National Standards Committee X3,
+.\" on Information Processing Systems.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\" 3. Neither the name of the University nor the names of its contributors
+.\"    may be used to endorse or promote products derived from this software
+.\"    without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.Dd $Mdocdate: June 5 2013 $
+.Dt WMEMCHR 3
+.Os
+.Sh NAME
+.Nm wmemchr
+.Nd locate wide character in wide string
+.Sh SYNOPSIS
+.In wchar.h
+.Ft wchar_t *
+.Fn wmemchr "const wchar_t *b" "wchar_t c" "size_t len"
+.Sh DESCRIPTION
+The
+.Fn wmemchr
+function locates the first occurrence of
+.Fa c
+in wide string
+.Fa b .
+.Sh RETURN VALUES
+The
+.Fn wmemchr
+function returns a pointer to the wide character located, or
+.Dv NULL
+if no such wide character exists within
+.Fa len
+wide characters.
+.Sh SEE ALSO
+.Xr memchr 3 ,
+.Xr wcschr 3 ,
+.Xr wcscspn 3 ,
+.Xr wcspbrk 3 ,
+.Xr wcsrchr 3 ,
+.Xr wcsspn 3 ,
+.Xr wcsstr 3 ,
+.Xr wcstok 3
+.Sh STANDARDS
+The
+.Fn wmemchr
+function conforms to
+.St -isoC-99
+and was first introduced in
+.St -isoC-amd1 .
+.Sh HISTORY
+The
+.Fn wmemchr
+function was ported from
+.Nx
+and first appeared in
+.Ox 3.8 .
diff --git a/src/lib/libc/string/wmemchr.c b/src/lib/libc/string/wmemchr.c
new file mode 100644
index 0000000000..8c9517861b
--- /dev/null
+++ b/src/lib/libc/string/wmemchr.c
@@ -0,0 +1,47 @@
+/*      $OpenBSD: wmemchr.c,v 1.3 2005/08/08 08:05:37 espie Exp $       */
+/*      $NetBSD: wmemchr.c,v 1.2 2001/01/03 14:29:37 lukem Exp $        */
+
+/*-
+ * Copyright (c)1999 Citrus Project,
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ *      citrus Id: wmemchr.c,v 1.2 2000/12/20 14:08:31 itojun Exp
+ */
+
+#include <wchar.h>
+
+wchar_t *
+wmemchr(const wchar_t *s, wchar_t c, size_t n)
+{
+        size_t i;
+
+        for (i = 0; i < n; i++) {
+                if (*s == c) {
+                        /* LINTED const castaway */
+                        return (wchar_t *)s;
+                }
+                s++;
+        }
+        return NULL;
+}
diff --git a/src/lib/libc/string/wmemcmp.3 b/src/lib/libc/string/wmemcmp.3
new file mode 100644
index 0000000000..bd8ddfd120
--- /dev/null
+++ b/src/lib/libc/string/wmemcmp.3
@@ -0,0 +1,78 @@
+.\"     $OpenBSD: wmemcmp.3,v 1.3 2013/06/05 03:39:23 tedu Exp $
+.\"
+.\" Copyright (c) 1990, 1991 The Regents of the University of California.
+.\" All rights reserved.
+.\"
+.\" This code is derived from software contributed to Berkeley by
+.\" Chris Torek and the American National Standards Committee X3,
+.\" on Information Processing Systems.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\" 3. Neither the name of the University nor the names of its contributors
+.\"    may be used to endorse or promote products derived from this software
+.\"    without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.Dd $Mdocdate: June 5 2013 $
+.Dt WMEMCMP 3
+.Os
+.Sh NAME
+.Nm wmemcmp
+.Nd compare wide strings
+.Sh SYNOPSIS
+.In wchar.h
+.Ft int
+.Fn wmemcmp "const wchar_t *s1" "const wchar_t *s2" "size_t len"
+.Sh DESCRIPTION
+The
+.Fn wmemcmp
+function compares the wide string
+.Fa s1
+against the wide string
+.Fa s2 .
+Both wide strings are assumed to be
+.Fa len
+wide characters long.
+.Sh RETURN VALUES
+The
+.Fn wmemcmp
+function returns zero if the two wide strings are identical,
+otherwise the difference between the first two differing wide characters is
+returned.
+Zero-length wide strings are always identical.
+.Sh SEE ALSO
+.Xr memcmp 3 ,
+.Xr wcscasecmp 3 ,
+.Xr wcscmp 3
+.Sh STANDARDS
+The
+.Fn wmemcmp
+function conforms to
+.St -isoC-99
+and was first introduced in
+.St -isoC-amd1 .
+.Sh HISTORY
+The
+.Fn wmemcmp
+function was ported from
+.Nx
+and first appeared in
+.Ox 3.8 .
diff --git a/src/lib/libc/string/wmemcmp.c b/src/lib/libc/string/wmemcmp.c
new file mode 100644
index 0000000000..39419aeddc
--- /dev/null
+++ b/src/lib/libc/string/wmemcmp.c
@@ -0,0 +1,50 @@
+/*      $OpenBSD: wmemcmp.c,v 1.4 2005/08/08 08:05:37 espie Exp $       */
+/*      $NetBSD: wmemcmp.c,v 1.3 2003/04/06 18:33:23 tshiozak Exp $     */
+
+/*-
+ * Copyright (c)1999 Citrus Project,
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ *      citrus Id: wmemcmp.c,v 1.2 2000/12/20 14:08:31 itojun Exp
+ */
+
+#include <wchar.h>
+#include "locale/runetype.h"
+
+int
+wmemcmp(const wchar_t *s1, const wchar_t *s2, size_t n)
+{
+        size_t i;
+
+        for (i = 0; i < n; i++) {
+                if (*s1 != *s2) {
+                        /* wchar might be unsigned */
+                        return *(const rune_t *)s1 >
+                               *(const rune_t *)s2 ? 1 : -1;
+                }
+                s1++;
+                s2++;
+        }
+        return 0;
+}
diff --git a/src/lib/libc/string/wmemcpy.3 b/src/lib/libc/string/wmemcpy.3
new file mode 100644
index 0000000000..2a6d528a1a
--- /dev/null
+++ b/src/lib/libc/string/wmemcpy.3
@@ -0,0 +1,79 @@
+.\"     $OpenBSD: wmemcpy.3,v 1.5 2013/06/05 03:39:23 tedu Exp $
+.\"
+.\" Copyright (c) 1990, 1991 The Regents of the University of California.
+.\" All rights reserved.
+.\"
+.\" This code is derived from software contributed to Berkeley by
+.\" Chris Torek and the American National Standards Committee X3,
+.\" on Information Processing Systems.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\" 3. Neither the name of the University nor the names of its contributors
+.\"    may be used to endorse or promote products derived from this software
+.\"    without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.Dd $Mdocdate: June 5 2013 $
+.Dt WMEMCPY 3
+.Os
+.Sh NAME
+.Nm wmemcpy
+.Nd copy wide characters
+.Sh SYNOPSIS
+.In wchar.h
+.Ft wchar_t *
+.Fn wmemcpy "wchar_t * restrict dst" "const wchar_t * restrict src" "size_t len"
+.Sh DESCRIPTION
+The
+.Fn wmemcpy
+function copies
+.Fa len
+wide characters from buffer
+.Fa src
+to buffer
+.Fa dst .
+If the two buffers may overlap,
+.Xr wmemmove 3
+must be used instead.
+.Sh RETURN VALUES
+The
+.Fn wmemcpy
+function returns the original value of
+.Fa dst .
+.Sh SEE ALSO
+.Xr memcpy 3 ,
+.Xr wcscpy 3 ,
+.Xr wcslcpy 3 ,
+.Xr wmemmove 3
+.Sh STANDARDS
+The
+.Fn wmemcpy
+function conforms to
+.St -isoC-99
+and was first introduced in
+.St -isoC-amd1 .
+.Sh HISTORY
+The
+.Fn wmemcpy
+function was ported from
+.Nx
+and first appeared in
+.Ox 3.8 .
diff --git a/src/lib/libc/string/wmemcpy.c b/src/lib/libc/string/wmemcpy.c
new file mode 100644
index 0000000000..9bbd83648e
--- /dev/null
+++ b/src/lib/libc/string/wmemcpy.c
@@ -0,0 +1,40 @@
+/*      $OpenBSD: wmemcpy.c,v 1.3 2005/08/08 08:05:37 espie Exp $       */
+/*      $NetBSD: wmemcpy.c,v 1.2 2001/01/03 14:29:37 lukem Exp $        */
+
+/*-
+ * Copyright (c)1999 Citrus Project,
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ *      citrus Id: wmemcpy.c,v 1.2 2000/12/20 14:08:31 itojun Exp
+ */
+
+#include <string.h>
+#include <wchar.h>
+
+wchar_t *
+wmemcpy(wchar_t *d, const wchar_t *s, size_t n)
+{
+
+        return (wchar_t *)memcpy(d, s, n * sizeof(wchar_t));
+}
diff --git a/src/lib/libc/string/wmemmove.3 b/src/lib/libc/string/wmemmove.3
new file mode 100644
index 0000000000..46942e7928
--- /dev/null
+++ b/src/lib/libc/string/wmemmove.3
@@ -0,0 +1,78 @@
+.\"     $OpenBSD: wmemmove.3,v 1.3 2013/06/05 03:39:23 tedu Exp $
+.\"
+.\" Copyright (c) 1990, 1991 The Regents of the University of California.
+.\" All rights reserved.
+.\"
+.\" This code is derived from software contributed to Berkeley by
+.\" Chris Torek and the American National Standards Committee X3,
+.\" on Information Processing Systems.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\" 3. Neither the name of the University nor the names of its contributors
+.\"    may be used to endorse or promote products derived from this software
+.\"    without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.Dd $Mdocdate: June 5 2013 $
+.Dt WMEMMOVE 3
+.Os
+.Sh NAME
+.Nm wmemmove
+.Nd copy wide characters
+.Sh SYNOPSIS
+.In wchar.h
+.Ft wchar_t *
+.Fn wmemmove "wchar_t *dst" "const wchar_t *src" "size_t len"
+.Sh DESCRIPTION
+The
+.Fn wmemmove
+function copies
+.Fa len
+wide characters from buffer
+.Fa src
+to buffer
+.Fa dst .
+The two buffers may overlap;
+the copy is always done in a non-destructive manner.
+.Sh RETURN VALUES
+The
+.Fn wmemmove
+function returns the original value of
+.Fa dst .
+.Sh SEE ALSO
+.Xr memmove 3 ,
+.Xr wcscpy 3 ,
+.Xr wcslcpy 3 ,
+.Xr wmemcpy 3
+.Sh STANDARDS
+The
+.Fn wmemmove
+function conforms to
+.St -isoC-99
+and was first introduced in
+.St -isoC-amd1 .
+.Sh HISTORY
+The
+.Fn wmemmove
+function was ported from
+.Nx
+and first appeared in
+.Ox 3.8 .
diff --git a/src/lib/libc/string/wmemmove.c b/src/lib/libc/string/wmemmove.c
new file mode 100644
index 0000000000..21bbabcd0c
--- /dev/null
+++ b/src/lib/libc/string/wmemmove.c
@@ -0,0 +1,40 @@
+/*      $OpenBSD: wmemmove.c,v 1.3 2005/08/08 08:05:37 espie Exp $      */
+/*      $NetBSD: wmemmove.c,v 1.2 2001/01/03 14:29:37 lukem Exp $       */
+
+/*-
+ * Copyright (c)1999 Citrus Project,
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ *      citrus Id: wmemmove.c,v 1.2 2000/12/20 14:08:31 itojun Exp
+ */
+
+#include <string.h>
+#include <wchar.h>
+
+wchar_t *
+wmemmove(wchar_t *d, const wchar_t *s, size_t n)
+{
+
+        return (wchar_t *)memmove(d, s, n * sizeof(wchar_t));
+}
diff --git a/src/lib/libc/string/wmemset.3 b/src/lib/libc/string/wmemset.3
new file mode 100644
index 0000000000..2655d68bcb
--- /dev/null
+++ b/src/lib/libc/string/wmemset.3
@@ -0,0 +1,73 @@
+.\"     $OpenBSD: wmemset.3,v 1.4 2013/06/05 03:39:23 tedu Exp $
+.\"
+.\" Copyright (c) 1990, 1991 The Regents of the University of California.
+.\" All rights reserved.
+.\"
+.\" This code is derived from software contributed to Berkeley by
+.\" Chris Torek and the American National Standards Committee X3,
+.\" on Information Processing Systems.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\" 3. Neither the name of the University nor the names of its contributors
+.\"    may be used to endorse or promote products derived from this software
+.\"    without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.Dd $Mdocdate: June 5 2013 $
+.Dt WMEMSET 3
+.Os
+.Sh NAME
+.Nm wmemset
+.Nd write a wide string
+.Sh SYNOPSIS
+.In wchar.h
+.Ft wchar_t *
+.Fn wmemset "wchar_t *s" "wchar_t c" "size_t len"
+.Sh DESCRIPTION
+The
+.Fn wmemset
+function writes
+.Fa len
+wide characters of value
+.Fa c
+to the wide string
+.Fa s .
+.Sh RETURN VALUES
+The
+.Fn wmemset
+function returns the original value of
+.Fa s .
+.Sh SEE ALSO
+.Xr memset 3
+.Sh STANDARDS
+The
+.Fn wmemset
+function conforms to
+.St -isoC-99
+and was first introduced in
+.St -isoC-amd1 .
+.Sh HISTORY
+The
+.Fn wmemset
+function was ported from
+.Nx
+and first appeared in
+.Ox 3.8 .
diff --git a/src/lib/libc/string/wmemset.c b/src/lib/libc/string/wmemset.c
new file mode 100644
index 0000000000..ac476dba6a
--- /dev/null
+++ b/src/lib/libc/string/wmemset.c
@@ -0,0 +1,46 @@
+/*      $OpenBSD: wmemset.c,v 1.3 2005/08/08 08:05:37 espie Exp $       */
+/*      $NetBSD: wmemset.c,v 1.2 2001/01/03 14:29:37 lukem Exp $        */
+
+/*-
+ * Copyright (c)1999 Citrus Project,
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ *      citrus Id: wmemset.c,v 1.2 2000/12/20 14:08:31 itojun Exp
+ */
+
+#include <wchar.h>
+
+wchar_t *
+wmemset(wchar_t *s, wchar_t c, size_t n)
+{
+        size_t i;
+        wchar_t *p;
+
+        p = s;
+        for (i = 0; i < n; i++) {
+                *p = c;
+                p++;
+        }
+        return s;
+}