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diff --git a/src/lib/libcrypto/asn1/a_set.c b/src/lib/libcrypto/asn1/a_set.c
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1/* crypto/asn1/a_set.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
63#ifndef NO_ASN1_OLD
64
65typedef struct
66 {
67 unsigned char *pbData;
68 int cbData;
69 } MYBLOB;
70
71/* SetBlobCmp
72 * This function compares two elements of SET_OF block
73 */
74static int SetBlobCmp(const void *elem1, const void *elem2 )
75 {
76 const MYBLOB *b1 = (const MYBLOB *)elem1;
77 const MYBLOB *b2 = (const MYBLOB *)elem2;
78 int r;
79
80 r = memcmp(b1->pbData, b2->pbData,
81 b1->cbData < b2->cbData ? b1->cbData : b2->cbData);
82 if(r != 0)
83 return r;
84 return b1->cbData-b2->cbData;
85 }
86
87/* int is_set: if TRUE, then sort the contents (i.e. it isn't a SEQUENCE) */
88int i2d_ASN1_SET(STACK *a, unsigned char **pp, int (*func)(), int ex_tag,
89 int ex_class, int is_set)
90 {
91 int ret=0,r;
92 int i;
93 unsigned char *p;
94 unsigned char *pStart, *pTempMem;
95 MYBLOB *rgSetBlob;
96 int totSize;
97
98 if (a == NULL) return(0);
99 for (i=sk_num(a)-1; i>=0; i--)
100 ret+=func(sk_value(a,i),NULL);
101 r=ASN1_object_size(1,ret,ex_tag);
102 if (pp == NULL) return(r);
103
104 p= *pp;
105 ASN1_put_object(&p,1,ret,ex_tag,ex_class);
106
107/* Modified by gp@nsj.co.jp */
108 /* And then again by Ben */
109 /* And again by Steve */
110
111 if(!is_set || (sk_num(a) < 2))
112 {
113 for (i=0; i<sk_num(a); i++)
114 func(sk_value(a,i),&p);
115
116 *pp=p;
117 return(r);
118 }
119
120 pStart = p; /* Catch the beg of Setblobs*/
121 /* In this array we will store the SET blobs */
122 rgSetBlob = (MYBLOB *)OPENSSL_malloc(sk_num(a) * sizeof(MYBLOB));
123 if (rgSetBlob == NULL)
124 {
125 ASN1err(ASN1_F_I2D_ASN1_SET,ERR_R_MALLOC_FAILURE);
126 return(0);
127 }
128
129 for (i=0; i<sk_num(a); i++)
130 {
131 rgSetBlob[i].pbData = p; /* catch each set encode blob */
132 func(sk_value(a,i),&p);
133 rgSetBlob[i].cbData = p - rgSetBlob[i].pbData; /* Length of this
134SetBlob
135*/
136 }
137 *pp=p;
138 totSize = p - pStart; /* This is the total size of all set blobs */
139
140 /* Now we have to sort the blobs. I am using a simple algo.
141 *Sort ptrs *Copy to temp-mem *Copy from temp-mem to user-mem*/
142 qsort( rgSetBlob, sk_num(a), sizeof(MYBLOB), SetBlobCmp);
143 if (!(pTempMem = OPENSSL_malloc(totSize)))
144 {
145 ASN1err(ASN1_F_I2D_ASN1_SET,ERR_R_MALLOC_FAILURE);
146 return(0);
147 }
148
149/* Copy to temp mem */
150 p = pTempMem;
151 for(i=0; i<sk_num(a); ++i)
152 {
153 memcpy(p, rgSetBlob[i].pbData, rgSetBlob[i].cbData);
154 p += rgSetBlob[i].cbData;
155 }
156
157/* Copy back to user mem*/
158 memcpy(pStart, pTempMem, totSize);
159 OPENSSL_free(pTempMem);
160 OPENSSL_free(rgSetBlob);
161
162 return(r);
163 }
164
165STACK *d2i_ASN1_SET(STACK **a, unsigned char **pp, long length,
166 char *(*func)(), void (*free_func)(void *), int ex_tag, int ex_class)
167 {
168 ASN1_CTX c;
169 STACK *ret=NULL;
170
171 if ((a == NULL) || ((*a) == NULL))
172 {
173 if ((ret=sk_new_null()) == NULL)
174 {
175 ASN1err(ASN1_F_D2I_ASN1_SET,ERR_R_MALLOC_FAILURE);
176 goto err;
177 }
178 }
179 else
180 ret=(*a);
181
182 c.p= *pp;
183 c.max=(length == 0)?0:(c.p+length);
184
185 c.inf=ASN1_get_object(&c.p,&c.slen,&c.tag,&c.xclass,c.max-c.p);
186 if (c.inf & 0x80) goto err;
187 if (ex_class != c.xclass)
188 {
189 ASN1err(ASN1_F_D2I_ASN1_SET,ASN1_R_BAD_CLASS);
190 goto err;
191 }
192 if (ex_tag != c.tag)
193 {
194 ASN1err(ASN1_F_D2I_ASN1_SET,ASN1_R_BAD_TAG);
195 goto err;
196 }
197 if ((c.slen+c.p) > c.max)
198 {
199 ASN1err(ASN1_F_D2I_ASN1_SET,ASN1_R_LENGTH_ERROR);
200 goto err;
201 }
202 /* check for infinite constructed - it can be as long
203 * as the amount of data passed to us */
204 if (c.inf == (V_ASN1_CONSTRUCTED+1))
205 c.slen=length+ *pp-c.p;
206 c.max=c.p+c.slen;
207
208 while (c.p < c.max)
209 {
210 char *s;
211
212 if (M_ASN1_D2I_end_sequence()) break;
213 if ((s=func(NULL,&c.p,c.slen,c.max-c.p)) == NULL)
214 {
215 ASN1err(ASN1_F_D2I_ASN1_SET,ASN1_R_ERROR_PARSING_SET_ELEMENT);
216 asn1_add_error(*pp,(int)(c.q- *pp));
217 goto err;
218 }
219 if (!sk_push(ret,s)) goto err;
220 }
221 if (a != NULL) (*a)=ret;
222 *pp=c.p;
223 return(ret);
224err:
225 if ((ret != NULL) && ((a == NULL) || (*a != ret)))
226 {
227 if (free_func != NULL)
228 sk_pop_free(ret,free_func);
229 else
230 sk_free(ret);
231 }
232 return(NULL);
233 }
234
235#endif
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