2 /* Written by Dr Stephen N Henson (shenson@bigfoot.com) for the OpenSSL
5 /* ====================================================================
6 * Copyright (c) 1999 The OpenSSL Project. All rights reserved.
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
12 * 1. Redistributions of source code must retain the above copyright
13 * notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in
17 * the documentation and/or other materials provided with the
20 * 3. All advertising materials mentioning features or use of this
21 * software must display the following acknowledgment:
22 * "This product includes software developed by the OpenSSL Project
23 * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
25 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
26 * endorse or promote products derived from this software without
27 * prior written permission. For written permission, please contact
28 * licensing@OpenSSL.org.
30 * 5. Products derived from this software may not be called "OpenSSL"
31 * nor may "OpenSSL" appear in their names without prior written
32 * permission of the OpenSSL Project.
34 * 6. Redistributions of any form whatsoever must retain the following
36 * "This product includes software developed by the OpenSSL Project
37 * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
39 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
40 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
41 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
42 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
43 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
44 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
45 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
46 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
47 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
48 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
49 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
50 * OF THE POSSIBILITY OF SUCH DAMAGE.
51 * ====================================================================
53 * This product includes cryptographic software written by Eric Young
54 * (eay@cryptsoft.com). This product includes software written by Tim
55 * Hudson (tjh@cryptsoft.com).
63 /* ASN1 packing and unpacking functions */
65 /* Turn an ASN1 encoded SEQUENCE OF into a STACK of structures */
67 STACK
*ASN1_seq_unpack(unsigned char *buf
, int len
, char *(*d2i
)(),
73 if (!(sk
= d2i_ASN1_SET(NULL
, &pbuf
, len
, d2i
, free_func
,
74 V_ASN1_SEQUENCE
, V_ASN1_UNIVERSAL
)))
75 ASN1err(ASN1_F_ASN1_SEQ_UNPACK
,ASN1_R_DECODE_ERROR
);
79 /* Turn a STACK structures into an ASN1 encoded SEQUENCE OF structure in a
83 unsigned char *ASN1_seq_pack(STACK
*safes
, int (*i2d
)(), unsigned char **buf
,
87 unsigned char *safe
, *p
;
88 if (!(safelen
= i2d_ASN1_SET(safes
, NULL
, i2d
, V_ASN1_SEQUENCE
,
89 V_ASN1_UNIVERSAL
, IS_SEQUENCE
))) {
90 ASN1err(ASN1_F_ASN1_SEQ_PACK
,ASN1_R_ENCODE_ERROR
);
93 if (!(safe
= Malloc (safelen
))) {
94 ASN1err(ASN1_F_ASN1_SEQ_PACK
,ERR_R_MALLOC_FAILURE
);
98 i2d_ASN1_SET(safes
, &p
, i2d
, V_ASN1_SEQUENCE
, V_ASN1_UNIVERSAL
,
100 if (len
) *len
= safelen
;
101 if (buf
) *buf
= safe
;
105 /* Extract an ASN1 object from an ASN1_STRING */
107 char *ASN1_unpack_string (ASN1_STRING
*oct
, char *(*d2i
)())
113 if(!(ret
= d2i(NULL
, &p
, oct
->length
)))
114 ASN1err(ASN1_F_ASN1_UNPACK_STRING
,ASN1_R_DECODE_ERROR
);
118 /* Pack an ASN1 object into an ASN1_STRING */
120 ASN1_STRING
*ASN1_pack_string (char *obj
, int (*i2d
)(), ASN1_STRING
**oct
)
126 if (!(octmp
= ASN1_STRING_new ())) {
127 ASN1err(ASN1_F_ASN1_PACK_STRING
,ERR_R_MALLOC_FAILURE
);
130 if (oct
) *oct
= octmp
;
133 if (!(octmp
->length
= i2d(obj
, NULL
))) {
134 ASN1err(ASN1_F_ASN1_PACK_STRING
,ASN1_R_ENCODE_ERROR
);
137 if (!(p
= Malloc (octmp
->length
))) {
138 ASN1err(ASN1_F_ASN1_PACK_STRING
,ERR_R_MALLOC_FAILURE
);