a_hdr.c revision 296465 
1/* crypto/asn1/a_hdr.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/asn1_mac.h>
62#include <openssl/asn1.h>
63
64int i2d_ASN1_HEADER(ASN1_HEADER * a, unsigned char **pp)
65{
66    M_ASN1_I2D_vars(a);
67
68    M_ASN1_I2D_len(a->header, i2d_ASN1_OCTET_STRING);
69    M_ASN1_I2D_len(a->data, a->meth->i2d);
70
71    M_ASN1_I2D_seq_total();
72
73    M_ASN1_I2D_put(a->header, i2d_ASN1_OCTET_STRING);
74    M_ASN1_I2D_put(a->data, a->meth->i2d);
75
76    M_ASN1_I2D_finish();
77}
78
79ASN1_HEADER *d2i_ASN1_HEADER(ASN1_HEADER ** a, const unsigned char **pp,
80                             long length)
81{
82    M_ASN1_D2I_vars(a, ASN1_HEADER *, ASN1_HEADER_new);
83
84    M_ASN1_D2I_Init();
85    M_ASN1_D2I_start_sequence();
86    M_ASN1_D2I_get_x(ASN1_OCTET_STRING, ret->header, d2i_ASN1_OCTET_STRING);
87    if (ret->meth != NULL) {
88        M_ASN1_D2I_get_x(void, ret->data, ret->meth->d2i);
89    } else {
90        if (a != NULL)
91            (*a) = ret;
92        return (ret);
93    }
94    M_ASN1_D2I_Finish(a, ASN1_HEADER_free, ASN1_F_D2I_ASN1_HEADER);
95}
96
97ASN1_HEADER *ASN1_HEADER_new(void)
98{
99    ASN1_HEADER *ret = NULL;
100    ASN1_CTX c;
101
102    M_ASN1_New_Malloc(ret, ASN1_HEADER);
103    M_ASN1_New(ret->header, M_ASN1_OCTET_STRING_new);
104    ret->meth = NULL;
105    ret->data = NULL;
106    return (ret);
107    M_ASN1_New_Error(ASN1_F_ASN1_HEADER_NEW);
108}
109
110void ASN1_HEADER_free(ASN1_HEADER * a)
111{
112    if (a == NULL)
113        return;
114    M_ASN1_OCTET_STRING_free(a->header);
115    if (a->meth != NULL)
116        a->meth->destroy(a->data);
117    OPENSSL_free(a);
118}
119