x_attrib.c revision 59191 
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/asn1_mac.h>
63#include <openssl/x509.h>
64
65/* sequence */
66int i2d_X509_ATTRIBUTE(X509_ATTRIBUTE *a, unsigned char **pp)
67	{
68	int k=0;
69	int r=0,ret=0;
70	unsigned char **p=NULL;
71
72	if (a == NULL) return(0);
73
74	p=NULL;
75	for (;;)
76		{
77		if (k)
78			{
79			r=ASN1_object_size(1,ret,V_ASN1_SEQUENCE);
80			if (pp == NULL) return(r);
81			p=pp;
82			ASN1_put_object(p,1,ret,V_ASN1_SEQUENCE,
83				V_ASN1_UNIVERSAL);
84			}
85
86		ret+=i2d_ASN1_OBJECT(a->object,p);
87		if (a->set)
88			ret+=i2d_ASN1_SET_OF_ASN1_TYPE(a->value.set,p,i2d_ASN1_TYPE,
89				V_ASN1_SET,V_ASN1_UNIVERSAL,IS_SET);
90		else
91			ret+=i2d_ASN1_TYPE(a->value.single,p);
92		if (k++) return(r);
93		}
94	}
95
96X509_ATTRIBUTE *d2i_X509_ATTRIBUTE(X509_ATTRIBUTE **a, unsigned char **pp,
97	     long length)
98	{
99	M_ASN1_D2I_vars(a,X509_ATTRIBUTE *,X509_ATTRIBUTE_new);
100
101	M_ASN1_D2I_Init();
102	M_ASN1_D2I_start_sequence();
103	M_ASN1_D2I_get(ret->object,d2i_ASN1_OBJECT);
104
105	if ((c.slen != 0) &&
106		(M_ASN1_next == (V_ASN1_CONSTRUCTED|V_ASN1_UNIVERSAL|V_ASN1_SET)))
107		{
108		ret->set=1;
109		M_ASN1_D2I_get_set_type(ASN1_TYPE,ret->value.set,d2i_ASN1_TYPE,
110					ASN1_TYPE_free);
111		}
112	else
113		{
114		ret->set=0;
115		M_ASN1_D2I_get(ret->value.single,d2i_ASN1_TYPE);
116		}
117
118	M_ASN1_D2I_Finish(a,X509_ATTRIBUTE_free,ASN1_F_D2I_X509_ATTRIBUTE);
119	}
120
121X509_ATTRIBUTE *X509_ATTRIBUTE_create(int nid, int atrtype, void *value)
122	{
123	X509_ATTRIBUTE *ret=NULL;
124	ASN1_TYPE *val=NULL;
125
126	if ((ret=X509_ATTRIBUTE_new()) == NULL)
127		return(NULL);
128	ret->object=OBJ_nid2obj(nid);
129	ret->set=1;
130	if ((ret->value.set=sk_ASN1_TYPE_new_null()) == NULL) goto err;
131	if ((val=ASN1_TYPE_new()) == NULL) goto err;
132	if (!sk_ASN1_TYPE_push(ret->value.set,val)) goto err;
133
134	ASN1_TYPE_set(val,atrtype,value);
135	return(ret);
136err:
137	if (ret != NULL) X509_ATTRIBUTE_free(ret);
138	if (val != NULL) ASN1_TYPE_free(val);
139	return(NULL);
140	}
141
142X509_ATTRIBUTE *X509_ATTRIBUTE_new(void)
143	{
144	X509_ATTRIBUTE *ret=NULL;
145	ASN1_CTX c;
146
147	M_ASN1_New_Malloc(ret,X509_ATTRIBUTE);
148	ret->object=OBJ_nid2obj(NID_undef);
149	ret->set=0;
150	ret->value.ptr=NULL;
151	return(ret);
152	M_ASN1_New_Error(ASN1_F_X509_ATTRIBUTE_NEW);
153	}
154
155void X509_ATTRIBUTE_free(X509_ATTRIBUTE *a)
156	{
157	if (a == NULL) return;
158	ASN1_OBJECT_free(a->object);
159	if (a->set)
160		sk_ASN1_TYPE_pop_free(a->value.set,ASN1_TYPE_free);
161	else
162		ASN1_TYPE_free(a->value.single);
163	Free(a);
164	}
165
166