This commit was manufactured by cvs2git to create tag 'tb_20250414'.tb_20250414

1 files changed, 0 insertions, 285 deletions

diff --git a/src/lib/libc/net/ip6opt.c b/src/lib/libc/net/ip6opt.c
deleted file mode 100644
index 3837489448..0000000000
--- a/src/lib/libc/net/ip6opt.c
+++ /dev/null
@@ -1,285 +0,0 @@
-/*      $OpenBSD: ip6opt.c,v 1.10 2020/01/22 07:52:37 deraadt 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/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);
-
-/*
- * 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);
-}
-
-/*
- * 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 > 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);
-}