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#include <openssl/asn1t.h>
59#include <openssl/x509.h>
60#include <openssl/obj.h>
61
62/*
63 * X509_ATTRIBUTE: this has the following form: typedef struct
64 * x509_attributes_st { ASN1_OBJECT *object; int single; union { char *ptr;
65 * STACK_OF(ASN1_TYPE) *set; ASN1_TYPE *single; } value; } X509_ATTRIBUTE;
66 * this needs some extra thought because the CHOICE type is merged with the
67 * main structure and because the value can be anything at all we *must* try
68 * the SET OF first because the ASN1_ANY type will swallow anything including
69 * the whole SET OF structure.
70 */
71
72ASN1_CHOICE(X509_ATTRIBUTE_SET) = {
73 ASN1_SET_OF(X509_ATTRIBUTE, value.set, ASN1_ANY),
74 ASN1_SIMPLE(X509_ATTRIBUTE, value.single, ASN1_ANY)
75} ASN1_CHOICE_END_selector(X509_ATTRIBUTE, X509_ATTRIBUTE_SET, single)
76
77ASN1_SEQUENCE(X509_ATTRIBUTE) = {
78 ASN1_SIMPLE(X509_ATTRIBUTE, object, ASN1_OBJECT),
79 /* CHOICE type merged with parent */
80 ASN1_EX_COMBINE(0, 0, X509_ATTRIBUTE_SET)
81} ASN1_SEQUENCE_END(X509_ATTRIBUTE)
82
83IMPLEMENT_ASN1_FUNCTIONS(X509_ATTRIBUTE)
84IMPLEMENT_ASN1_DUP_FUNCTION(X509_ATTRIBUTE)
85
86X509_ATTRIBUTE *X509_ATTRIBUTE_create(int nid, int atrtype, void *value)
87{
88 X509_ATTRIBUTE *ret = NULL;
89 ASN1_TYPE *val = NULL;
90
91 if ((ret = X509_ATTRIBUTE_new()) == NULL)
92 return (NULL);
93 /* TODO(fork): const correctness. */
94 ret->object = (ASN1_OBJECT *)OBJ_nid2obj(nid);
95 ret->single = 0;
96 if ((ret->value.set = sk_ASN1_TYPE_new_null()) == NULL)
97 goto err;
98 if ((val = ASN1_TYPE_new()) == NULL)
99 goto err;
100 if (!sk_ASN1_TYPE_push(ret->value.set, val))
101 goto err;
102
103 ASN1_TYPE_set(val, atrtype, value);
104 return (ret);
105 err:
106 if (ret != NULL)
107 X509_ATTRIBUTE_free(ret);
108 if (val != NULL)
109 ASN1_TYPE_free(val);
110 return (NULL);
111}
112