1 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
2 * All rights reserved.
3 *
4 * This package is an SSL implementation written
5 * by Eric Young (eay@cryptsoft.com).
6 * The implementation was written so as to conform with Netscapes SSL.
7 *
8 * This library is free for commercial and non-commercial use as long as
9 * the following conditions are aheared to. The following conditions
10 * apply to all code found in this distribution, be it the RC4, RSA,
11 * lhash, DES, etc., code; not just the SSL code. The SSL documentation
12 * included with this distribution is covered by the same copyright terms
13 * except that the holder is Tim Hudson (tjh@cryptsoft.com).
14 *
15 * Copyright remains Eric Young's, and as such any Copyright notices in
16 * the code are not to be removed.
17 * If this package is used in a product, Eric Young should be given attribution
18 * as the author of the parts of the library used.
19 * This can be in the form of a textual message at program startup or
20 * in documentation (online or textual) provided with the package.
21 *
22 * Redistribution and use in source and binary forms, with or without
23 * modification, are permitted provided that the following conditions
24 * are met:
25 * 1. Redistributions of source code must retain the copyright
26 * notice, this list of conditions and the following disclaimer.
27 * 2. Redistributions in binary form must reproduce the above copyright
28 * notice, this list of conditions and the following disclaimer in the
29 * documentation and/or other materials provided with the distribution.
30 * 3. All advertising materials mentioning features or use of this software
31 * must display the following acknowledgement:
32 * "This product includes cryptographic software written by
33 * Eric Young (eay@cryptsoft.com)"
34 * The word 'cryptographic' can be left out if the rouines from the library
35 * being used are not cryptographic related :-).
36 * 4. If you include any Windows specific code (or a derivative thereof) from
37 * the apps directory (application code) you must include an acknowledgement:
38 * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
39 *
40 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
41 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
42 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
43 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
44 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
45 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
46 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
47 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
48 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
49 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
50 * SUCH DAMAGE.
51 *
52 * The licence and distribution terms for any publically available version or
53 * derivative of this code cannot be changed. i.e. this code cannot simply be
54 * copied and put under another distribution licence
55 * [including the GNU Public Licence.] */
56
57 #include <openssl/asn1.h>
58
59 #include <openssl/asn1t.h>
60 #include <openssl/err.h>
61 #include <openssl/mem.h>
62 #include <openssl/obj.h>
63
64 #include "internal.h"
65
66
ASN1_TYPE_get(const ASN1_TYPE * a)67 int ASN1_TYPE_get(const ASN1_TYPE *a)
68 {
69 if (a->type == V_ASN1_BOOLEAN || a->type == V_ASN1_NULL ||
70 a->value.ptr != NULL) {
71 return a->type;
72 }
73 return 0;
74 }
75
asn1_type_value_as_pointer(const ASN1_TYPE * a)76 const void *asn1_type_value_as_pointer(const ASN1_TYPE *a)
77 {
78 if (a->type == V_ASN1_BOOLEAN) {
79 return a->value.boolean ? (void *)0xff : NULL;
80 }
81 if (a->type == V_ASN1_NULL) {
82 return NULL;
83 }
84 return a->value.ptr;
85 }
86
ASN1_TYPE_set(ASN1_TYPE * a,int type,void * value)87 void ASN1_TYPE_set(ASN1_TYPE *a, int type, void *value)
88 {
89 ASN1_TYPE **tmp_a = &a;
90 ASN1_primitive_free((ASN1_VALUE **)tmp_a, NULL);
91 a->type = type;
92 if (type == V_ASN1_BOOLEAN)
93 a->value.boolean = value ? 0xff : 0;
94 else
95 a->value.ptr = value;
96 }
97
ASN1_TYPE_set1(ASN1_TYPE * a,int type,const void * value)98 int ASN1_TYPE_set1(ASN1_TYPE *a, int type, const void *value)
99 {
100 if (!value || (type == V_ASN1_BOOLEAN)) {
101 void *p = (void *)value;
102 ASN1_TYPE_set(a, type, p);
103 } else if (type == V_ASN1_OBJECT) {
104 ASN1_OBJECT *odup;
105 odup = OBJ_dup(value);
106 if (!odup)
107 return 0;
108 ASN1_TYPE_set(a, type, odup);
109 } else {
110 ASN1_STRING *sdup;
111 sdup = ASN1_STRING_dup(value);
112 if (!sdup)
113 return 0;
114 ASN1_TYPE_set(a, type, sdup);
115 }
116 return 1;
117 }
118
119 /* Returns 0 if they are equal, != 0 otherwise. */
ASN1_TYPE_cmp(const ASN1_TYPE * a,const ASN1_TYPE * b)120 int ASN1_TYPE_cmp(const ASN1_TYPE *a, const ASN1_TYPE *b)
121 {
122 int result = -1;
123
124 if (!a || !b || a->type != b->type)
125 return -1;
126
127 switch (a->type) {
128 case V_ASN1_OBJECT:
129 result = OBJ_cmp(a->value.object, b->value.object);
130 break;
131 case V_ASN1_NULL:
132 result = 0; /* They do not have content. */
133 break;
134 case V_ASN1_BOOLEAN:
135 result = a->value.boolean - b->value.boolean;
136 break;
137 case V_ASN1_INTEGER:
138 case V_ASN1_ENUMERATED:
139 case V_ASN1_BIT_STRING:
140 case V_ASN1_OCTET_STRING:
141 case V_ASN1_SEQUENCE:
142 case V_ASN1_SET:
143 case V_ASN1_NUMERICSTRING:
144 case V_ASN1_PRINTABLESTRING:
145 case V_ASN1_T61STRING:
146 case V_ASN1_VIDEOTEXSTRING:
147 case V_ASN1_IA5STRING:
148 case V_ASN1_UTCTIME:
149 case V_ASN1_GENERALIZEDTIME:
150 case V_ASN1_GRAPHICSTRING:
151 case V_ASN1_VISIBLESTRING:
152 case V_ASN1_GENERALSTRING:
153 case V_ASN1_UNIVERSALSTRING:
154 case V_ASN1_BMPSTRING:
155 case V_ASN1_UTF8STRING:
156 case V_ASN1_OTHER:
157 default:
158 result = ASN1_STRING_cmp(a->value.asn1_string, b->value.asn1_string);
159 break;
160 }
161
162 return result;
163 }
164