crypto/asn1/a_type.c

   1 /* crypto/asn1/a_type.c */
   2 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
   3  * All rights reserved.
   4  *
   5  * This package is an SSL implementation written
   6  * by Eric Young (eay@cryptsoft.com).
   7  * The implementation was written so as to conform with Netscapes SSL.
   8  *
   9  * This library is free for commercial and non-commercial use as long as
  10  * the following conditions are aheared to.  The following conditions
  11  * apply to all code found in this distribution, be it the RC4, RSA,
  12  * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
  13  * included with this distribution is covered by the same copyright terms
  14  * except that the holder is Tim Hudson (tjh@cryptsoft.com).
  15  *
  16  * Copyright remains Eric Young's, and as such any Copyright notices in
  17  * the code are not to be removed.
  18  * If this package is used in a product, Eric Young should be given attribution
  19  * as the author of the parts of the library used.
  20  * This can be in the form of a textual message at program startup or
  21  * in documentation (online or textual) provided with the package.
  22  *
  23  * Redistribution and use in source and binary forms, with or without
  24  * modification, are permitted provided that the following conditions
  25  * are met:
  26  * 1. Redistributions of source code must retain the copyright
  27  *    notice, this list of conditions and the following disclaimer.
  28  * 2. Redistributions in binary form must reproduce the above copyright
  29  *    notice, this list of conditions and the following disclaimer in the
  30  *    documentation and/or other materials provided with the distribution.
  31  * 3. All advertising materials mentioning features or use of this software
  32  *    must display the following acknowledgement:
  33  *    "This product includes cryptographic software written by
  34  *     Eric Young (eay@cryptsoft.com)"
  35  *    The word 'cryptographic' can be left out if the rouines from the library
  36  *    being used are not cryptographic related :-).
  37  * 4. If you include any Windows specific code (or a derivative thereof) from
  38  *    the apps directory (application code) you must include an acknowledgement:
  39  *    "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
  40  *
  41  * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
  42  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  43  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  44  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  45  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  46  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  47  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  48  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  49  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  50  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  51  * SUCH DAMAGE.
  52  *
  53  * The licence and distribution terms for any publically available version or
  54  * derivative of this code cannot be changed.  i.e. this code cannot simply be
  55  * copied and put under another distribution licence
  56  * [including the GNU Public Licence.]
  57  */
  58
  59 #include <stdio.h>
  60 #include "cryptlib.h"
  61 #include <openssl/asn1t.h>
  62 #include <openssl/objects.h>
  63
  64 int ASN1_TYPE_get(ASN1_TYPE *a)
  65 {
  66     if ((a->value.ptr != NULL) || (a->type == V_ASN1_NULL))
  67         return (a->type);
  68     else
  69         return (0);
  70 }
  71
  72 void ASN1_TYPE_set(ASN1_TYPE *a, int type, void *value)
  73 {
  74     if (a->value.ptr != NULL) {
  75         ASN1_TYPE **tmp_a = &a;
  76         ASN1_primitive_free((ASN1_VALUE **)tmp_a, NULL);
  77     }
  78     a->type = type;
  79     if (type == V_ASN1_BOOLEAN)
  80         a->value.boolean = value ? 0xff : 0;
  81     else
  82         a->value.ptr = value;
  83 }
  84
  85 int ASN1_TYPE_set1(ASN1_TYPE *a, int type, const void *value)
  86 {
  87     if (!value || (type == V_ASN1_BOOLEAN)) {
  88         void *p = (void *)value;
  89         ASN1_TYPE_set(a, type, p);
  90     } else if (type == V_ASN1_OBJECT) {
  91         ASN1_OBJECT *odup;
  92         odup = OBJ_dup(value);
  93         if (!odup)
  94             return 0;
  95         ASN1_TYPE_set(a, type, odup);
  96     } else {
  97         ASN1_STRING *sdup;
  98         sdup = ASN1_STRING_dup(value);
  99         if (!sdup)
 100             return 0;
 101         ASN1_TYPE_set(a, type, sdup);
 102     }
 103     return 1;
 104 }
 105
 106 IMPLEMENT_STACK_OF(ASN1_TYPE)
 107
 108 IMPLEMENT_ASN1_SET_OF(ASN1_TYPE)
 109
 110 /* Returns 0 if they are equal, != 0 otherwise. */
 111 int ASN1_TYPE_cmp(const ASN1_TYPE *a, const ASN1_TYPE *b)
 112 {
 113     int result = -1;
 114
 115     if (!a || !b || a->type != b->type)
 116         return -1;
 117
 118     switch (a->type) {
 119     case V_ASN1_OBJECT:
 120         result = OBJ_cmp(a->value.object, b->value.object);
 121         break;
 122     case V_ASN1_NULL:
 123         result = 0;             /* They do not have content. */
 124         break;
 125     case V_ASN1_INTEGER:
 126     case V_ASN1_NEG_INTEGER:
 127     case V_ASN1_ENUMERATED:
 128     case V_ASN1_NEG_ENUMERATED:
 129     case V_ASN1_BIT_STRING:
 130     case V_ASN1_OCTET_STRING:
 131     case V_ASN1_SEQUENCE:
 132     case V_ASN1_SET:
 133     case V_ASN1_NUMERICSTRING:
 134     case V_ASN1_PRINTABLESTRING:
 135     case V_ASN1_T61STRING:
 136     case V_ASN1_VIDEOTEXSTRING:
 137     case V_ASN1_IA5STRING:
 138     case V_ASN1_UTCTIME:
 139     case V_ASN1_GENERALIZEDTIME:
 140     case V_ASN1_GRAPHICSTRING:
 141     case V_ASN1_VISIBLESTRING:
 142     case V_ASN1_GENERALSTRING:
 143     case V_ASN1_UNIVERSALSTRING:
 144     case V_ASN1_BMPSTRING:
 145     case V_ASN1_UTF8STRING:
 146     case V_ASN1_OTHER:
 147     default:
 148         result = ASN1_STRING_cmp((ASN1_STRING *)a->value.ptr,
 149                                  (ASN1_STRING *)b->value.ptr);
 150         break;
 151     }
 152
 153     return result;
 154 }