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                 {
  76                 ASN1_TYPE **tmp_a = &a;
  77                 ASN1_primitive_free((ASN1_VALUE **)tmp_a, NULL);
  78                 }
  79         a->type=type;
  80         a->value.ptr=value;
  81         }
  82
  83 int ASN1_TYPE_set1(ASN1_TYPE *a, int type, const void *value)
  84         {
  85         if (!value || (type == V_ASN1_BOOLEAN))
  86                 {
  87                 void *p = (void *)value;
  88                 ASN1_TYPE_set(a, type, p);
  89                 }
  90         else if (type == V_ASN1_OBJECT)
  91                 {
  92                 ASN1_OBJECT *odup;
  93                 odup = OBJ_dup(value);
  94                 if (!odup)
  95                         return 0;
  96                 ASN1_TYPE_set(a, type, odup);
  97                 }
  98         else
  99                 {
 100                 ASN1_STRING *sdup;
 101                 sdup = ASN1_STRING_dup((ASN1_STRING *)value);
 102                 if (!sdup)
 103                         return 0;
 104                 ASN1_TYPE_set(a, type, sdup);
 105                 }
 106         return 1;
 107         }
 108
 109 IMPLEMENT_STACK_OF(ASN1_TYPE)
 110 IMPLEMENT_ASN1_SET_OF(ASN1_TYPE)
 111
 112 /* Returns 0 if they are equal, != 0 otherwise. */
 113 int ASN1_TYPE_cmp(const ASN1_TYPE *a, const ASN1_TYPE *b)
 114         {
 115         int result = -1;
 116
 117         if (!a || !b || a->type != b->type) return -1;
 118
 119         switch (a->type)
 120                 {
 121         case V_ASN1_OBJECT:
 122                 result = OBJ_cmp(a->value.object, b->value.object);
 123                 break;
 124         case V_ASN1_NULL:
 125                 result = 0;     /* They do not have content. */
 126                 break;
 127         case V_ASN1_INTEGER:
 128         case V_ASN1_NEG_INTEGER:
 129         case V_ASN1_ENUMERATED:
 130         case V_ASN1_NEG_ENUMERATED:
 131         case V_ASN1_BIT_STRING:
 132         case V_ASN1_OCTET_STRING:
 133         case V_ASN1_SEQUENCE:
 134         case V_ASN1_SET:
 135         case V_ASN1_NUMERICSTRING:
 136         case V_ASN1_PRINTABLESTRING:
 137         case V_ASN1_T61STRING:
 138         case V_ASN1_VIDEOTEXSTRING:
 139         case V_ASN1_IA5STRING:
 140         case V_ASN1_UTCTIME:
 141         case V_ASN1_GENERALIZEDTIME:
 142         case V_ASN1_GRAPHICSTRING:
 143         case V_ASN1_VISIBLESTRING:
 144         case V_ASN1_GENERALSTRING:
 145         case V_ASN1_UNIVERSALSTRING:
 146         case V_ASN1_BMPSTRING:
 147         case V_ASN1_UTF8STRING:
 148         case V_ASN1_OTHER:
 149         default:
 150                 result = ASN1_STRING_cmp((ASN1_STRING *) a->value.ptr,
 151                                          (ASN1_STRING *) b->value.ptr);
 152                 break;
 153                 }
 154
 155         return result;
 156         }