a_type.c revision 296341 
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
64int 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
72void 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
85int 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
106IMPLEMENT_STACK_OF(ASN1_TYPE)
107
108IMPLEMENT_ASN1_SET_OF(ASN1_TYPE)
109
110/* Returns 0 if they are equal, != 0 otherwise. */
111int 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_BOOLEAN:
123        result = a->value.boolean - b->value.boolean;
124        break;
125    case V_ASN1_NULL:
126        result = 0;             /* They do not have content. */
127        break;
128    case V_ASN1_INTEGER:
129    case V_ASN1_NEG_INTEGER:
130    case V_ASN1_ENUMERATED:
131    case V_ASN1_NEG_ENUMERATED:
132    case V_ASN1_BIT_STRING:
133    case V_ASN1_OCTET_STRING:
134    case V_ASN1_SEQUENCE:
135    case V_ASN1_SET:
136    case V_ASN1_NUMERICSTRING:
137    case V_ASN1_PRINTABLESTRING:
138    case V_ASN1_T61STRING:
139    case V_ASN1_VIDEOTEXSTRING:
140    case V_ASN1_IA5STRING:
141    case V_ASN1_UTCTIME:
142    case V_ASN1_GENERALIZEDTIME:
143    case V_ASN1_GRAPHICSTRING:
144    case V_ASN1_VISIBLESTRING:
145    case V_ASN1_GENERALSTRING:
146    case V_ASN1_UNIVERSALSTRING:
147    case V_ASN1_BMPSTRING:
148    case V_ASN1_UTF8STRING:
149    case V_ASN1_OTHER:
150    default:
151        result = ASN1_STRING_cmp((ASN1_STRING *)a->value.ptr,
152                                 (ASN1_STRING *)b->value.ptr);
153        break;
154    }
155
156    return result;
157}
158