1 /* crypto/asn1/evp_asn1.c */
2 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
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.
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).
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.
23 * Redistribution and use in source and binary forms, with or without
24 * modification, are permitted provided that the following conditions
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)"
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
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.]
61 #include <openssl/asn1.h>
62 #include <openssl/asn1_mac.h>
64 int ASN1_TYPE_set_octetstring(ASN1_TYPE
*a
, unsigned char *data
, int len
)
68 if ((os
=M_ASN1_OCTET_STRING_new()) == NULL
) return(0);
69 if (!M_ASN1_OCTET_STRING_set(os
,data
,len
))
71 M_ASN1_OCTET_STRING_free(os
);
74 ASN1_TYPE_set(a
,V_ASN1_OCTET_STRING
,os
);
78 /* int max_len: for returned value */
79 int ASN1_TYPE_get_octetstring(ASN1_TYPE
*a
, unsigned char *data
,
85 if ((a
->type
!= V_ASN1_OCTET_STRING
) || (a
->value
.octet_string
== NULL
))
87 ASN1err(ASN1_F_ASN1_TYPE_GET_OCTETSTRING
,ASN1_R_DATA_IS_WRONG
);
90 p
=M_ASN1_STRING_data(a
->value
.octet_string
);
91 ret
=M_ASN1_STRING_length(a
->value
.octet_string
);
100 int ASN1_TYPE_set_int_octetstring(ASN1_TYPE
*a
, long num
, unsigned char *data
,
104 ASN1_OCTET_STRING os
,*osp
;
107 unsigned char buf
[32]; /* when they have 256bit longs,
108 * I'll be in trouble */
112 os
.type
=V_ASN1_OCTET_STRING
;
114 ASN1_INTEGER_set(&in
,num
);
115 n
= i2d_ASN1_INTEGER(&in
,NULL
);
116 n
+=M_i2d_ASN1_OCTET_STRING(&os
,NULL
);
118 size
=ASN1_object_size(1,n
,V_ASN1_SEQUENCE
);
120 if ((osp
=ASN1_STRING_new()) == NULL
) return(0);
121 /* Grow the 'string' */
122 if (!ASN1_STRING_set(osp
,NULL
,size
))
124 ASN1_STRING_free(osp
);
128 M_ASN1_STRING_length_set(osp
, size
);
129 p
=M_ASN1_STRING_data(osp
);
131 ASN1_put_object(&p
,1,n
,V_ASN1_SEQUENCE
,V_ASN1_UNIVERSAL
);
132 i2d_ASN1_INTEGER(&in
,&p
);
133 M_i2d_ASN1_OCTET_STRING(&os
,&p
);
135 ASN1_TYPE_set(a
,V_ASN1_SEQUENCE
,osp
);
139 /* we return the actual length..., num may be missing, in which
140 * case, set it to zero */
141 /* int max_len: for returned value */
142 int ASN1_TYPE_get_int_octetstring(ASN1_TYPE
*a
, long *num
, unsigned char *data
,
146 ASN1_INTEGER
*ai
=NULL
;
147 ASN1_OCTET_STRING
*os
=NULL
;
148 const unsigned char *p
;
152 if ((a
->type
!= V_ASN1_SEQUENCE
) || (a
->value
.sequence
== NULL
))
156 p
=M_ASN1_STRING_data(a
->value
.sequence
);
157 length
=M_ASN1_STRING_length(a
->value
.sequence
);
162 c
.error
=ASN1_R_DATA_IS_WRONG
;
164 M_ASN1_D2I_start_sequence();
166 if ((ai
=d2i_ASN1_INTEGER(NULL
,&c
.p
,c
.slen
)) == NULL
) goto err
;
169 if ((os
=d2i_ASN1_OCTET_STRING(NULL
,&c
.p
,c
.slen
)) == NULL
) goto err
;
171 if (!M_ASN1_D2I_end_sequence()) goto err
;
174 *num
=ASN1_INTEGER_get(ai
);
176 ret
=M_ASN1_STRING_length(os
);
183 memcpy(data
,M_ASN1_STRING_data(os
),n
);
187 ASN1err(ASN1_F_ASN1_TYPE_GET_INT_OCTETSTRING
,ASN1_R_DATA_IS_WRONG
);
189 if (os
!= NULL
) M_ASN1_OCTET_STRING_free(os
);
190 if (ai
!= NULL
) M_ASN1_INTEGER_free(ai
);