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      1 /* crypto/asn1/a_type.c */
      2 /* Copyright (C) 1995-1998 Eric Young (eay (at) cryptsoft.com)
      3  * All rights reserved.
      4  *
      5  * This package is an SSL implementation written
      6  * by Eric Young (eay (at) 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 (at) 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 (at) 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 (at) 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 	if (type == V_ASN1_BOOLEAN)
     81 		a->value.boolean = value ? 0xff : 0;
     82 	else
     83 		a->value.ptr=value;
     84 	}
     85 
     86 int ASN1_TYPE_set1(ASN1_TYPE *a, int type, const void *value)
     87 	{
     88 	if (!value || (type == V_ASN1_BOOLEAN))
     89 		{
     90 		void *p = (void *)value;
     91 		ASN1_TYPE_set(a, type, p);
     92 		}
     93 	else if (type == V_ASN1_OBJECT)
     94 		{
     95 		ASN1_OBJECT *odup;
     96 		odup = OBJ_dup(value);
     97 		if (!odup)
     98 			return 0;
     99 		ASN1_TYPE_set(a, type, odup);
    100 		}
    101 	else
    102 		{
    103 		ASN1_STRING *sdup;
    104 		sdup = ASN1_STRING_dup(value);
    105 		if (!sdup)
    106 			return 0;
    107 		ASN1_TYPE_set(a, type, sdup);
    108 		}
    109 	return 1;
    110 	}
    111 
    112 IMPLEMENT_STACK_OF(ASN1_TYPE)
    113 IMPLEMENT_ASN1_SET_OF(ASN1_TYPE)
    114 
    115 /* Returns 0 if they are equal, != 0 otherwise. */
    116 int ASN1_TYPE_cmp(ASN1_TYPE *a, ASN1_TYPE *b)
    117 	{
    118 	int result = -1;
    119 
    120 	if (!a || !b || a->type != b->type) return -1;
    121 
    122 	switch (a->type)
    123 		{
    124 	case V_ASN1_OBJECT:
    125 		result = OBJ_cmp(a->value.object, b->value.object);
    126 		break;
    127 	case V_ASN1_NULL:
    128 		result = 0;	/* They do not have content. */
    129 		break;
    130 	case V_ASN1_INTEGER:
    131 	case V_ASN1_NEG_INTEGER:
    132 	case V_ASN1_ENUMERATED:
    133 	case V_ASN1_NEG_ENUMERATED:
    134 	case V_ASN1_BIT_STRING:
    135 	case V_ASN1_OCTET_STRING:
    136 	case V_ASN1_SEQUENCE:
    137 	case V_ASN1_SET:
    138 	case V_ASN1_NUMERICSTRING:
    139 	case V_ASN1_PRINTABLESTRING:
    140 	case V_ASN1_T61STRING:
    141 	case V_ASN1_VIDEOTEXSTRING:
    142 	case V_ASN1_IA5STRING:
    143 	case V_ASN1_UTCTIME:
    144 	case V_ASN1_GENERALIZEDTIME:
    145 	case V_ASN1_GRAPHICSTRING:
    146 	case V_ASN1_VISIBLESTRING:
    147 	case V_ASN1_GENERALSTRING:
    148 	case V_ASN1_UNIVERSALSTRING:
    149 	case V_ASN1_BMPSTRING:
    150 	case V_ASN1_UTF8STRING:
    151 	case V_ASN1_OTHER:
    152 	default:
    153 		result = ASN1_STRING_cmp((ASN1_STRING *) a->value.ptr,
    154 					 (ASN1_STRING *) b->value.ptr);
    155 		break;
    156 		}
    157 
    158 	return result;
    159 	}
    160