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diff --git a/src/lib/libcrypto/asn1/evp_asn1.c b/src/lib/libcrypto/asn1/evp_asn1.c
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1/* crypto/asn1/evp_asn1.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.h>
62#include <openssl/asn1_mac.h>
63
64int ASN1_TYPE_set_octetstring(ASN1_TYPE *a, unsigned char *data, int len)
65 {
66 ASN1_STRING *os;
67
68 if ((os=M_ASN1_OCTET_STRING_new()) == NULL) return(0);
69 if (!M_ASN1_OCTET_STRING_set(os,data,len)) return(0);
70 ASN1_TYPE_set(a,V_ASN1_OCTET_STRING,os);
71 return(1);
72 }
73
74/* int max_len: for returned value */
75int ASN1_TYPE_get_octetstring(ASN1_TYPE *a, unsigned char *data,
76 int max_len)
77 {
78 int ret,num;
79 unsigned char *p;
80
81 if ((a->type != V_ASN1_OCTET_STRING) || (a->value.octet_string == NULL))
82 {
83 ASN1err(ASN1_F_ASN1_TYPE_GET_OCTETSTRING,ASN1_R_DATA_IS_WRONG);
84 return(-1);
85 }
86 p=M_ASN1_STRING_data(a->value.octet_string);
87 ret=M_ASN1_STRING_length(a->value.octet_string);
88 if (ret < max_len)
89 num=ret;
90 else
91 num=max_len;
92 memcpy(data,p,num);
93 return(ret);
94 }
95
96int ASN1_TYPE_set_int_octetstring(ASN1_TYPE *a, long num, unsigned char *data,
97 int len)
98 {
99 int n,size;
100 ASN1_OCTET_STRING os,*osp;
101 ASN1_INTEGER in;
102 unsigned char *p;
103 unsigned char buf[32]; /* when they have 256bit longs,
104 * I'll be in trouble */
105 in.data=buf;
106 in.length=32;
107 os.data=data;
108 os.type=V_ASN1_OCTET_STRING;
109 os.length=len;
110 ASN1_INTEGER_set(&in,num);
111 n = i2d_ASN1_INTEGER(&in,NULL);
112 n+=M_i2d_ASN1_OCTET_STRING(&os,NULL);
113
114 size=ASN1_object_size(1,n,V_ASN1_SEQUENCE);
115
116 if ((osp=ASN1_STRING_new()) == NULL) return(0);
117 /* Grow the 'string' */
118 if (!ASN1_STRING_set(osp,NULL,size))
119 {
120 ASN1_STRING_free(osp);
121 return(0);
122 }
123
124 M_ASN1_STRING_length_set(osp, size);
125 p=M_ASN1_STRING_data(osp);
126
127 ASN1_put_object(&p,1,n,V_ASN1_SEQUENCE,V_ASN1_UNIVERSAL);
128 i2d_ASN1_INTEGER(&in,&p);
129 M_i2d_ASN1_OCTET_STRING(&os,&p);
130
131 ASN1_TYPE_set(a,V_ASN1_SEQUENCE,osp);
132 return(1);
133 }
134
135/* we return the actual length..., num may be missing, in which
136 * case, set it to zero */
137/* int max_len: for returned value */
138int ASN1_TYPE_get_int_octetstring(ASN1_TYPE *a, long *num, unsigned char *data,
139 int max_len)
140 {
141 int ret= -1,n;
142 ASN1_INTEGER *ai=NULL;
143 ASN1_OCTET_STRING *os=NULL;
144 const unsigned char *p;
145 long length;
146 ASN1_const_CTX c;
147
148 if ((a->type != V_ASN1_SEQUENCE) || (a->value.sequence == NULL))
149 {
150 goto err;
151 }
152 p=M_ASN1_STRING_data(a->value.sequence);
153 length=M_ASN1_STRING_length(a->value.sequence);
154
155 c.pp= &p;
156 c.p=p;
157 c.max=p+length;
158 c.error=ASN1_R_DATA_IS_WRONG;
159
160 M_ASN1_D2I_start_sequence();
161 c.q=c.p;
162 if ((ai=d2i_ASN1_INTEGER(NULL,&c.p,c.slen)) == NULL) goto err;
163 c.slen-=(c.p-c.q);
164 c.q=c.p;
165 if ((os=d2i_ASN1_OCTET_STRING(NULL,&c.p,c.slen)) == NULL) goto err;
166 c.slen-=(c.p-c.q);
167 if (!M_ASN1_D2I_end_sequence()) goto err;
168
169 if (num != NULL)
170 *num=ASN1_INTEGER_get(ai);
171
172 ret=M_ASN1_STRING_length(os);
173 if (max_len > ret)
174 n=ret;
175 else
176 n=max_len;
177
178 if (data != NULL)
179 memcpy(data,M_ASN1_STRING_data(os),n);
180 if (0)
181 {
182err:
183 ASN1err(ASN1_F_ASN1_TYPE_GET_INT_OCTETSTRING,ASN1_R_DATA_IS_WRONG);
184 }
185 if (os != NULL) M_ASN1_OCTET_STRING_free(os);
186 if (ai != NULL) M_ASN1_INTEGER_free(ai);
187 return(ret);
188 }
189
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