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authorryker <>1998-10-05 20:13:14 +0000
committerryker <>1998-10-05 20:13:14 +0000
commitaeeae06a79815dc190061534d47236cec09f9e32 (patch)
tree851692b9c2f9c04f077666855641900f19fdb217 /src/lib/libcrypto/asn1/a_bytes.c
parenta4f79641824cbf9f60ca9d1168d1fcc46717a82a (diff)
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Import of SSLeay-0.9.0b with RSA and IDEA stubbed + OpenBSD build
functionality for shared libs. Note that routines such as sslv2_init and friends that use RSA will not work due to lack of RSA in this library. Needs documentation and help from ports for easy upgrade to full functionality where legally possible.
Diffstat (limited to 'src/lib/libcrypto/asn1/a_bytes.c')
-rw-r--r--src/lib/libcrypto/asn1/a_bytes.c346
1 files changed, 346 insertions, 0 deletions
diff --git a/src/lib/libcrypto/asn1/a_bytes.c b/src/lib/libcrypto/asn1/a_bytes.c
new file mode 100644
index 0000000000..14168d61ad
--- /dev/null
+++ b/src/lib/libcrypto/asn1/a_bytes.c
@@ -0,0 +1,346 @@
1/* crypto/asn1/a_bytes.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 "asn1_mac.h"
62
63/* ASN1err(ASN1_F_ASN1_TYPE_NEW,ASN1_R_ERROR_STACK);
64 * ASN1err(ASN1_F_D2I_ASN1_TYPE_BYTES,ASN1_R_ERROR_STACK);
65 * ASN1err(ASN1_F_D2I_ASN1_TYPE_BYTES,ASN1_R_WRONG_TYPE);
66 * ASN1err(ASN1_F_ASN1_COLLATE_PRIMATIVE,ASN1_R_WRONG_TAG);
67 */
68
69static unsigned long tag2bit[32]={
700, 0, 0, B_ASN1_BIT_STRING, /* tags 0 - 3 */
71B_ASN1_OCTET_STRING, 0, 0, B_ASN1_UNKNOWN,/* tags 4- 7 */
72B_ASN1_UNKNOWN, B_ASN1_UNKNOWN, B_ASN1_UNKNOWN, B_ASN1_UNKNOWN,/* tags 8-11 */
73B_ASN1_UNKNOWN, B_ASN1_UNKNOWN, B_ASN1_UNKNOWN, B_ASN1_UNKNOWN,/* tags 12-15 */
740, 0, B_ASN1_NUMERICSTRING,B_ASN1_PRINTABLESTRING,
75B_ASN1_T61STRING,B_ASN1_VIDEOTEXSTRING,B_ASN1_IA5STRING,0,
760,B_ASN1_GRAPHICSTRING,B_ASN1_ISO64STRING,B_ASN1_GENERALSTRING,
77B_ASN1_UNIVERSALSTRING,B_ASN1_UNKNOWN,B_ASN1_BMPSTRING,B_ASN1_UNKNOWN,
78 };
79
80#ifndef NOPROTO
81static int asn1_collate_primative(ASN1_STRING *a, ASN1_CTX *c);
82#else
83static int asn1_collate_primative();
84#endif
85
86/* type is a 'bitmap' of acceptable string types to be accepted.
87 */
88ASN1_STRING *d2i_ASN1_type_bytes(a, pp, length, type)
89ASN1_STRING **a;
90unsigned char **pp;
91long length;
92int type;
93 {
94 ASN1_STRING *ret=NULL;
95 unsigned char *p,*s;
96 long len;
97 int inf,tag,xclass;
98 int i=0;
99
100 p= *pp;
101 inf=ASN1_get_object(&p,&len,&tag,&xclass,length);
102 if (inf & 0x80) goto err;
103
104 if (tag >= 32)
105 {
106 i=ASN1_R_TAG_VALUE_TOO_HIGH;;
107 goto err;
108 }
109 if (!(tag2bit[tag] & type))
110 {
111 i=ASN1_R_WRONG_TYPE;
112 goto err;
113 }
114
115 /* If a bit-string, exit early */
116 if (tag == V_ASN1_BIT_STRING)
117 return(d2i_ASN1_BIT_STRING(a,pp,length));
118
119 if ((a == NULL) || ((*a) == NULL))
120 {
121 if ((ret=ASN1_STRING_new()) == NULL) return(NULL);
122 }
123 else
124 ret=(*a);
125
126 if (len != 0)
127 {
128 s=(unsigned char *)Malloc((int)len+1);
129 if (s == NULL)
130 {
131 i=ERR_R_MALLOC_FAILURE;
132 goto err;
133 }
134 memcpy(s,p,(int)len);
135 s[len]='\0';
136 p+=len;
137 }
138 else
139 s=NULL;
140
141 if (ret->data != NULL) Free((char *)ret->data);
142 ret->length=(int)len;
143 ret->data=s;
144 ret->type=tag;
145 if (a != NULL) (*a)=ret;
146 *pp=p;
147 return(ret);
148err:
149 ASN1err(ASN1_F_D2I_ASN1_TYPE_BYTES,i);
150 if ((ret != NULL) && ((a == NULL) || (*a != ret)))
151 ASN1_STRING_free(ret);
152 return(NULL);
153 }
154
155int i2d_ASN1_bytes(a, pp, tag, xclass)
156ASN1_STRING *a;
157unsigned char **pp;
158int tag;
159int xclass;
160 {
161 int ret,r,constructed;
162 unsigned char *p;
163
164 if (a == NULL) return(0);
165
166 if (tag == V_ASN1_BIT_STRING)
167 return(i2d_ASN1_BIT_STRING(a,pp));
168
169 ret=a->length;
170 r=ASN1_object_size(0,ret,tag);
171 if (pp == NULL) return(r);
172 p= *pp;
173
174 if ((tag == V_ASN1_SEQUENCE) || (tag == V_ASN1_SET))
175 constructed=1;
176 else
177 constructed=0;
178 ASN1_put_object(&p,constructed,ret,tag,xclass);
179 memcpy(p,a->data,a->length);
180 p+=a->length;
181 *pp= p;
182 return(r);
183 }
184
185ASN1_STRING *d2i_ASN1_bytes(a, pp, length, Ptag, Pclass)
186ASN1_STRING **a;
187unsigned char **pp;
188long length;
189int Ptag;
190int Pclass;
191 {
192 ASN1_STRING *ret=NULL;
193 unsigned char *p,*s;
194 long len;
195 int inf,tag,xclass;
196 int i=0;
197
198 if ((a == NULL) || ((*a) == NULL))
199 {
200 if ((ret=ASN1_STRING_new()) == NULL) return(NULL);
201 }
202 else
203 ret=(*a);
204
205 p= *pp;
206 inf=ASN1_get_object(&p,&len,&tag,&xclass,length);
207 if (inf & 0x80)
208 {
209 i=ASN1_R_BAD_OBJECT_HEADER;
210 goto err;
211 }
212
213 if (tag != Ptag)
214 {
215 i=ASN1_R_WRONG_TAG;
216 goto err;
217 }
218
219 if (inf & V_ASN1_CONSTRUCTED)
220 {
221 ASN1_CTX c;
222
223 c.pp=pp;
224 c.p=p;
225 c.inf=inf;
226 c.slen=len;
227 c.tag=Ptag;
228 c.xclass=Pclass;
229 c.max=(length == 0)?0:(p+length);
230 if (!asn1_collate_primative(ret,&c))
231 goto err;
232 else
233 {
234 p=c.p;
235 }
236 }
237 else
238 {
239 if (len != 0)
240 {
241 if ((ret->length < len) || (ret->data == NULL))
242 {
243 if (ret->data != NULL) Free((char *)ret->data);
244 s=(unsigned char *)Malloc((int)len);
245 if (s == NULL)
246 {
247 i=ERR_R_MALLOC_FAILURE;
248 goto err;
249 }
250 }
251 else
252 s=ret->data;
253 memcpy(s,p,(int)len);
254 p+=len;
255 }
256 else
257 {
258 s=NULL;
259 if (ret->data != NULL) Free((char *)ret->data);
260 }
261
262 ret->length=(int)len;
263 ret->data=s;
264 ret->type=Ptag;
265 }
266
267 if (a != NULL) (*a)=ret;
268 *pp=p;
269 return(ret);
270err:
271 if ((ret != NULL) && ((a == NULL) || (*a != ret)))
272 ASN1_STRING_free(ret);
273 ASN1err(ASN1_F_D2I_ASN1_BYTES,i);
274 return(NULL);
275 }
276
277
278/* We are about to parse 0..n d2i_ASN1_bytes objects, we are to collapes
279 * them into the one struture that is then returned */
280/* There have been a few bug fixes for this function from
281 * Paul Keogh <paul.keogh@sse.ie>, many thanks to him */
282static int asn1_collate_primative(a,c)
283ASN1_STRING *a;
284ASN1_CTX *c;
285 {
286 ASN1_STRING *os=NULL;
287 BUF_MEM b;
288 int num;
289
290 b.length=0;
291 b.max=0;
292 b.data=NULL;
293
294 if (a == NULL)
295 {
296 c->error=ERR_R_PASSED_NULL_PARAMETER;
297 goto err;
298 }
299
300 num=0;
301 for (;;)
302 {
303 if (c->inf & 1)
304 {
305 c->eos=ASN1_check_infinite_end(&c->p,
306 (long)(c->max-c->p));
307 if (c->eos) break;
308 }
309 else
310 {
311 if (c->slen <= 0) break;
312 }
313
314 c->q=c->p;
315 if (d2i_ASN1_bytes(&os,&c->p,c->max-c->p,c->tag,c->xclass)
316 == NULL)
317 {
318 c->error=ERR_R_ASN1_LIB;
319 goto err;
320 }
321
322 if (!BUF_MEM_grow(&b,num+os->length))
323 {
324 c->error=ERR_R_BUF_LIB;
325 goto err;
326 }
327 memcpy(&(b.data[num]),os->data,os->length);
328 if (!(c->inf & 1))
329 c->slen-=(c->p-c->q);
330 num+=os->length;
331 }
332
333 if (!asn1_Finish(c)) goto err;
334
335 a->length=num;
336 if (a->data != NULL) Free(a->data);
337 a->data=(unsigned char *)b.data;
338 if (os != NULL) ASN1_STRING_free(os);
339 return(1);
340err:
341 ASN1err(ASN1_F_ASN1_COLLATE_PRIMATIVE,c->error);
342 if (os != NULL) ASN1_STRING_free(os);
343 if (b.data != NULL) Free(b.data);
344 return(0);
345 }
346