1 /* crypto/asn1/x_attrib.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/objects.h>
62 #include <openssl/asn1t.h>
63 #include <openssl/x509.h>
64
65 /* X509_ATTRIBUTE: this has the following form:
66 *
67 * typedef struct x509_attributes_st
68 * {
69 * ASN1_OBJECT *object;
70 * int single;
71 * union {
72 * char *ptr;
73 * STACK_OF(ASN1_TYPE) *set;
74 * ASN1_TYPE *single;
75 * } value;
76 * } X509_ATTRIBUTE;
77 *
78 * this needs some extra thought because the CHOICE type is
79 * merged with the main structure and because the value can
80 * be anything at all we *must* try the SET OF first because
81 * the ASN1_ANY type will swallow anything including the whole
82 * SET OF structure.
83 */
84
85 ASN1_CHOICE(X509_ATTRIBUTE_SET) = {
86 ASN1_SET_OF(X509_ATTRIBUTE, value.set, ASN1_ANY),
87 ASN1_SIMPLE(X509_ATTRIBUTE, value.single, ASN1_ANY)
88 } ASN1_CHOICE_END_selector(X509_ATTRIBUTE, X509_ATTRIBUTE_SET, single)
89
90 ASN1_SEQUENCE(X509_ATTRIBUTE) = {
91 ASN1_SIMPLE(X509_ATTRIBUTE, object, ASN1_OBJECT),
92 /* CHOICE type merged with parent */
93 ASN1_EX_COMBINE(0, 0, X509_ATTRIBUTE_SET)
94 } ASN1_SEQUENCE_END(X509_ATTRIBUTE)
95
96 IMPLEMENT_ASN1_FUNCTIONS(X509_ATTRIBUTE)
97 IMPLEMENT_ASN1_DUP_FUNCTION(X509_ATTRIBUTE)
98
99 X509_ATTRIBUTE *X509_ATTRIBUTE_create(int nid, int atrtype, void *value)
100 {
101 X509_ATTRIBUTE *ret=NULL;
102 ASN1_TYPE *val=NULL;
103
104 if ((ret=X509_ATTRIBUTE_new()) == NULL)
105 return(NULL);
106 ret->object=OBJ_nid2obj(nid);
107 ret->single=0;
108 if ((ret->value.set=sk_ASN1_TYPE_new_null()) == NULL) goto err;
109 if ((val=ASN1_TYPE_new()) == NULL) goto err;
110 if (!sk_ASN1_TYPE_push(ret->value.set,val)) goto err;
111
112 ASN1_TYPE_set(val,atrtype,value);
113 return(ret);
114 err:
115 if (ret != NULL) X509_ATTRIBUTE_free(ret);
116 if (val != NULL) ASN1_TYPE_free(val);
117 return(NULL);
118 }