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
85ASN1_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
90ASN1_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
96IMPLEMENT_ASN1_FUNCTIONS(X509_ATTRIBUTE)
97IMPLEMENT_ASN1_DUP_FUNCTION(X509_ATTRIBUTE)
98
99X509_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);
114err:
115	if (ret != NULL) X509_ATTRIBUTE_free(ret);
116	if (val != NULL) ASN1_TYPE_free(val);
117	return(NULL);
118	}
119