1 files changed, 286 insertions, 0 deletions

diff --git a/src/lib/libcrypto/asn1/asn1_old_lib.c b/src/lib/libcrypto/asn1/asn1_old_lib.c
new file mode 100644
index 0000000000..cc9a48f74c
--- /dev/null
+++ b/src/lib/libcrypto/asn1/asn1_old_lib.c
@@ -0,0 +1,286 @@
+/* $OpenBSD: asn1_old_lib.c,v 1.1 2021/12/15 18:12:10 jsing Exp $ */
+/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
+ * All rights reserved.
+ *
+ * This package is an SSL implementation written
+ * by Eric Young (eay@cryptsoft.com).
+ * The implementation was written so as to conform with Netscapes SSL.
+ *
+ * This library is free for commercial and non-commercial use as long as
+ * the following conditions are aheared to.  The following conditions
+ * apply to all code found in this distribution, be it the RC4, RSA,
+ * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
+ * included with this distribution is covered by the same copyright terms
+ * except that the holder is Tim Hudson (tjh@cryptsoft.com).
+ *
+ * Copyright remains Eric Young's, and as such any Copyright notices in
+ * the code are not to be removed.
+ * If this package is used in a product, Eric Young should be given attribution
+ * as the author of the parts of the library used.
+ * This can be in the form of a textual message at program startup or
+ * in documentation (online or textual) provided with the package.
+ *
+ * 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 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 cryptographic software written by
+ *     Eric Young (eay@cryptsoft.com)"
+ *    The word 'cryptographic' can be left out if the rouines from the library
+ *    being used are not cryptographic related :-).
+ * 4. If you include any Windows specific code (or a derivative thereof) from
+ *    the apps directory (application code) you must include an acknowledgement:
+ *    "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
+ *
+ * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``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.
+ *
+ * The licence and distribution terms for any publically available version or
+ * derivative of this code cannot be changed.  i.e. this code cannot simply be
+ * copied and put under another distribution licence
+ * [including the GNU Public Licence.]
+ */
+
+#include <limits.h>
+#include <stdio.h>
+#include <string.h>
+
+#include <openssl/asn1.h>
+#include <openssl/err.h>
+
+static int asn1_get_length(const unsigned char **pp, int *inf, long *rl, int max);
+static void asn1_put_length(unsigned char **pp, int length);
+
+static int
+_asn1_check_infinite_end(const unsigned char **p, long len)
+{
+        /* If there is 0 or 1 byte left, the length check should pick
+         * things up */
+        if (len <= 0)
+                return (1);
+        else if ((len >= 2) && ((*p)[0] == 0) && ((*p)[1] == 0)) {
+                (*p) += 2;
+                return (1);
+        }
+        return (0);
+}
+
+int
+ASN1_check_infinite_end(unsigned char **p, long len)
+{
+        return _asn1_check_infinite_end((const unsigned char **)p, len);
+}
+
+int
+ASN1_const_check_infinite_end(const unsigned char **p, long len)
+{
+        return _asn1_check_infinite_end(p, len);
+}
+
+int
+ASN1_get_object(const unsigned char **pp, long *plength, int *ptag,
+    int *pclass, long omax)
+{
+        int i, ret;
+        long l;
+        const unsigned char *p = *pp;
+        int tag, xclass, inf;
+        long max = omax;
+
+        if (!max)
+                goto err;
+        ret = (*p & V_ASN1_CONSTRUCTED);
+        xclass = (*p & V_ASN1_PRIVATE);
+        i = *p & V_ASN1_PRIMITIVE_TAG;
+        if (i == V_ASN1_PRIMITIVE_TAG) {                /* high-tag */
+                p++;
+                if (--max == 0)
+                        goto err;
+                l = 0;
+                while (*p & 0x80) {
+                        l <<= 7L;
+                        l |= *(p++) & 0x7f;
+                        if (--max == 0)
+                                goto err;
+                        if (l > (INT_MAX >> 7L))
+                                goto err;
+                }
+                l <<= 7L;
+                l |= *(p++) & 0x7f;
+                tag = (int)l;
+                if (--max == 0)
+                        goto err;
+        } else {
+                tag = i;
+                p++;
+                if (--max == 0)
+                        goto err;
+        }
+        *ptag = tag;
+        *pclass = xclass;
+        if (!asn1_get_length(&p, &inf, plength, (int)max))
+                goto err;
+
+        if (inf && !(ret & V_ASN1_CONSTRUCTED))
+                goto err;
+
+        if (*plength > (omax - (p - *pp))) {
+                ASN1error(ASN1_R_TOO_LONG);
+                /* Set this so that even if things are not long enough
+                 * the values are set correctly */
+                ret |= 0x80;
+        }
+        *pp = p;
+        return (ret | inf);
+
+err:
+        ASN1error(ASN1_R_HEADER_TOO_LONG);
+        return (0x80);
+}
+
+static int
+asn1_get_length(const unsigned char **pp, int *inf, long *rl, int max)
+{
+        const unsigned char *p = *pp;
+        unsigned long ret = 0;
+        unsigned int i;
+
+        if (max-- < 1)
+                return (0);
+        if (*p == 0x80) {
+                *inf = 1;
+                ret = 0;
+                p++;
+        } else {
+                *inf = 0;
+                i = *p & 0x7f;
+                if (*(p++) & 0x80) {
+                        if (max < (int)i)
+                                return (0);
+                        /* skip leading zeroes */
+                        while (i && *p == 0) {
+                                p++;
+                                i--;
+                        }
+                        if (i > sizeof(long))
+                                return 0;
+                        while (i-- > 0) {
+                                ret <<= 8L;
+                                ret |= *(p++);
+                        }
+                } else
+                        ret = i;
+        }
+        if (ret > LONG_MAX)
+                return 0;
+        *pp = p;
+        *rl = (long)ret;
+        return (1);
+}
+
+/* class 0 is constructed
+ * constructed == 2 for indefinite length constructed */
+void
+ASN1_put_object(unsigned char **pp, int constructed, int length, int tag,
+    int xclass)
+{
+        unsigned char *p = *pp;
+        int i, ttag;
+
+        i = (constructed) ? V_ASN1_CONSTRUCTED : 0;
+        i |= (xclass & V_ASN1_PRIVATE);
+        if (tag < 31)
+                *(p++) = i | (tag & V_ASN1_PRIMITIVE_TAG);
+        else {
+                *(p++) = i | V_ASN1_PRIMITIVE_TAG;
+                for(i = 0, ttag = tag; ttag > 0; i++)
+                        ttag >>= 7;
+                ttag = i;
+                while (i-- > 0) {
+                        p[i] = tag & 0x7f;
+                        if (i != (ttag - 1))
+                                p[i] |= 0x80;
+                        tag >>= 7;
+                }
+                p += ttag;
+        }
+        if (constructed == 2)
+                *(p++) = 0x80;
+        else
+                asn1_put_length(&p, length);
+        *pp = p;
+}
+
+int
+ASN1_put_eoc(unsigned char **pp)
+{
+        unsigned char *p = *pp;
+
+        *p++ = 0;
+        *p++ = 0;
+        *pp = p;
+        return 2;
+}
+
+static void
+asn1_put_length(unsigned char **pp, int length)
+{
+        unsigned char *p = *pp;
+
+        int i, l;
+        if (length <= 127)
+                *(p++) = (unsigned char)length;
+        else {
+                l = length;
+                for (i = 0; l > 0; i++)
+                        l >>= 8;
+                *(p++) = i | 0x80;
+                l = i;
+                while (i-- > 0) {
+                        p[i] = length & 0xff;
+                        length >>= 8;
+                }
+                p += l;
+        }
+        *pp = p;
+}
+
+int
+ASN1_object_size(int constructed, int length, int tag)
+{
+        int ret;
+
+        ret = length;
+        ret++;
+        if (tag >= 31) {
+                while (tag > 0) {
+                        tag >>= 7;
+                        ret++;
+                }
+        }
+        if (constructed == 2)
+                return ret + 3;
+        ret++;
+        if (length > 127) {
+                while (length > 0) {
+                        length >>= 8;
+                        ret++;
+                }
+        }
+        return (ret);
+}