]> git.ipfire.org Git - thirdparty/openssl.git/blame - apps/asn1pars.c
Make it possible to run individual tests even when linked with libcrypto.so and libssl.so
[thirdparty/openssl.git] / apps / asn1pars.c
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d02b48c6 1/* apps/asn1pars.c */
58964a49 2/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
d02b48c6
RE
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
dfeab068 59/* A nice addition from Dr Stephen Henson <shenson@bigfoot.com> to
651d0aff 60 * add the -strparse option which parses nested binary structures
dfeab068
RE
61 */
62
d02b48c6
RE
63#include <stdio.h>
64#include <stdlib.h>
65#include <string.h>
66#include "apps.h"
ec577822
BM
67#include <openssl/err.h>
68#include <openssl/evp.h>
69#include <openssl/x509.h>
70#include <openssl/pem.h>
d02b48c6 71
d02b48c6
RE
72/* -inform arg - input format - default PEM (DER or PEM)
73 * -in arg - input file - default stdin
74 * -i - indent the details by depth
75 * -offset - where in the file to start
76 * -length - how many bytes to use
657e60fa 77 * -oid file - extra oid description file
d02b48c6
RE
78 */
79
80#undef PROG
81#define PROG asn1parse_main
82
667ac4ec
RE
83int MAIN(int, char **);
84
6b691a5c 85int MAIN(int argc, char **argv)
d02b48c6 86 {
dfeab068 87 int i,badops=0,offset=0,ret=1,j;
d02b48c6 88 unsigned int length=0;
dfeab068 89 long num,tmplen;
f5eac85e 90 BIO *in=NULL,*out=NULL,*b64=NULL, *derout = NULL;
ca1e465f 91 int informat,indent=0, noout = 0, dump = 0;
f5eac85e 92 char *infile=NULL,*str=NULL,*prog,*oidfile=NULL, *derfile=NULL;
dfeab068 93 unsigned char *tmpbuf;
d02b48c6 94 BUF_MEM *buf=NULL;
dfeab068
RE
95 STACK *osk=NULL;
96 ASN1_TYPE *at=NULL;
d02b48c6 97
d02b48c6
RE
98 informat=FORMAT_PEM;
99
100 apps_startup();
101
102 if (bio_err == NULL)
103 if ((bio_err=BIO_new(BIO_s_file())) != NULL)
58964a49 104 BIO_set_fp(bio_err,stderr,BIO_NOCLOSE|BIO_FP_TEXT);
d02b48c6 105
3647bee2
DSH
106 if (!load_config(bio_err, NULL))
107 goto end;
108
d02b48c6
RE
109 prog=argv[0];
110 argc--;
111 argv++;
dfeab068
RE
112 if ((osk=sk_new_null()) == NULL)
113 {
26a3a48d 114 BIO_printf(bio_err,"Memory allocation failure\n");
dfeab068
RE
115 goto end;
116 }
d02b48c6
RE
117 while (argc >= 1)
118 {
119 if (strcmp(*argv,"-inform") == 0)
120 {
121 if (--argc < 1) goto bad;
122 informat=str2fmt(*(++argv));
123 }
124 else if (strcmp(*argv,"-in") == 0)
125 {
126 if (--argc < 1) goto bad;
127 infile= *(++argv);
128 }
f5eac85e
DSH
129 else if (strcmp(*argv,"-out") == 0)
130 {
131 if (--argc < 1) goto bad;
132 derfile= *(++argv);
133 }
d02b48c6
RE
134 else if (strcmp(*argv,"-i") == 0)
135 {
136 indent=1;
137 }
d71c6bc5 138 else if (strcmp(*argv,"-noout") == 0) noout = 1;
58964a49
RE
139 else if (strcmp(*argv,"-oid") == 0)
140 {
141 if (--argc < 1) goto bad;
142 oidfile= *(++argv);
143 }
d02b48c6
RE
144 else if (strcmp(*argv,"-offset") == 0)
145 {
146 if (--argc < 1) goto bad;
147 offset= atoi(*(++argv));
148 }
149 else if (strcmp(*argv,"-length") == 0)
150 {
151 if (--argc < 1) goto bad;
152 length= atoi(*(++argv));
153 if (length == 0) goto bad;
154 }
ca1e465f
RL
155 else if (strcmp(*argv,"-dump") == 0)
156 {
157 dump= -1;
158 }
159 else if (strcmp(*argv,"-dlimit") == 0)
160 {
161 if (--argc < 1) goto bad;
162 dump= atoi(*(++argv));
163 if (dump <= 0) goto bad;
164 }
dfeab068
RE
165 else if (strcmp(*argv,"-strparse") == 0)
166 {
167 if (--argc < 1) goto bad;
168 sk_push(osk,*(++argv));
169 }
d02b48c6
RE
170 else
171 {
172 BIO_printf(bio_err,"unknown option %s\n",*argv);
173 badops=1;
174 break;
175 }
176 argc--;
177 argv++;
178 }
179
180 if (badops)
181 {
182bad:
183 BIO_printf(bio_err,"%s [options] <infile\n",prog);
184 BIO_printf(bio_err,"where options are\n");
185 BIO_printf(bio_err," -inform arg input format - one of DER TXT PEM\n");
9fe84296 186 BIO_printf(bio_err," -in arg input file\n");
c56fb0f1 187 BIO_printf(bio_err," -out arg output file (output format is always DER\n");
d71c6bc5 188 BIO_printf(bio_err," -noout arg don't produce any output\n");
d02b48c6 189 BIO_printf(bio_err," -offset arg offset into file\n");
657e60fa 190 BIO_printf(bio_err," -length arg length of section in file\n");
d02b48c6 191 BIO_printf(bio_err," -i indent entries\n");
ca1e465f
RL
192 BIO_printf(bio_err," -dump dump unknown data in hex form\n");
193 BIO_printf(bio_err," -dlimit arg dump the first arg bytes of unknown data in hex form\n");
58964a49 194 BIO_printf(bio_err," -oid file file of extra oid definitions\n");
dfeab068
RE
195 BIO_printf(bio_err," -strparse offset\n");
196 BIO_printf(bio_err," a series of these can be used to 'dig' into multiple\n");
197 BIO_printf(bio_err," ASN1 blob wrappings\n");
d02b48c6
RE
198 goto end;
199 }
200
201 ERR_load_crypto_strings();
202
203 in=BIO_new(BIO_s_file());
204 out=BIO_new(BIO_s_file());
205 if ((in == NULL) || (out == NULL))
206 {
207 ERR_print_errors(bio_err);
208 goto end;
209 }
58964a49 210 BIO_set_fp(out,stdout,BIO_NOCLOSE|BIO_FP_TEXT);
bc36ee62 211#ifdef OPENSSL_SYS_VMS
645749ef
RL
212 {
213 BIO *tmpbio = BIO_new(BIO_f_linebuffer());
214 out = BIO_push(tmpbio, out);
215 }
216#endif
58964a49
RE
217
218 if (oidfile != NULL)
219 {
220 if (BIO_read_filename(in,oidfile) <= 0)
221 {
222 BIO_printf(bio_err,"problems opening %s\n",oidfile);
223 ERR_print_errors(bio_err);
224 goto end;
225 }
226 OBJ_create_objects(in);
227 }
228
d02b48c6
RE
229 if (infile == NULL)
230 BIO_set_fp(in,stdin,BIO_NOCLOSE);
231 else
232 {
233 if (BIO_read_filename(in,infile) <= 0)
234 {
235 perror(infile);
236 goto end;
237 }
238 }
239
f5eac85e
DSH
240 if (derfile) {
241 if(!(derout = BIO_new_file(derfile, "wb"))) {
242 BIO_printf(bio_err,"problems opening %s\n",derfile);
243 ERR_print_errors(bio_err);
244 goto end;
245 }
246 }
247
d02b48c6
RE
248 if ((buf=BUF_MEM_new()) == NULL) goto end;
249 if (!BUF_MEM_grow(buf,BUFSIZ*8)) goto end; /* Pre-allocate :-) */
250
251 if (informat == FORMAT_PEM)
252 {
253 BIO *tmp;
254
255 if ((b64=BIO_new(BIO_f_base64())) == NULL)
256 goto end;
257 BIO_push(b64,in);
258 tmp=in;
259 in=b64;
260 b64=tmp;
261 }
262
263 num=0;
264 for (;;)
265 {
266 if (!BUF_MEM_grow(buf,(int)num+BUFSIZ)) goto end;
267 i=BIO_read(in,&(buf->data[num]),BUFSIZ);
268 if (i <= 0) break;
269 num+=i;
270 }
271 str=buf->data;
272
dfeab068
RE
273 /* If any structs to parse go through in sequence */
274
275 if (sk_num(osk))
276 {
277 tmpbuf=(unsigned char *)str;
278 tmplen=num;
279 for (i=0; i<sk_num(osk); i++)
280 {
f5eac85e 281 ASN1_TYPE *atmp;
dfeab068
RE
282 j=atoi(sk_value(osk,i));
283 if (j == 0)
284 {
285 BIO_printf(bio_err,"'%s' is an invalid number\n",sk_value(osk,i));
286 continue;
287 }
288 tmpbuf+=j;
289 tmplen-=j;
f5eac85e
DSH
290 atmp = at;
291 at = d2i_ASN1_TYPE(NULL,&tmpbuf,tmplen);
292 ASN1_TYPE_free(atmp);
293 if(!at)
dfeab068
RE
294 {
295 BIO_printf(bio_err,"Error parsing structure\n");
296 ERR_print_errors(bio_err);
297 goto end;
298 }
299 /* hmm... this is a little evil but it works */
300 tmpbuf=at->value.asn1_string->data;
301 tmplen=at->value.asn1_string->length;
302 }
303 str=(char *)tmpbuf;
304 num=tmplen;
305 }
306
d02b48c6 307 if (length == 0) length=(unsigned int)num;
f5eac85e 308 if(derout) {
a74c55cd 309 if(BIO_write(derout, str + offset, length) != (int)length) {
f5eac85e
DSH
310 BIO_printf(bio_err, "Error writing output\n");
311 ERR_print_errors(bio_err);
312 goto end;
313 }
314 }
d71c6bc5 315 if (!noout &&
ca1e465f
RL
316 !ASN1_parse_dump(out,(unsigned char *)&(str[offset]),length,
317 indent,dump))
d02b48c6
RE
318 {
319 ERR_print_errors(bio_err);
320 goto end;
321 }
322 ret=0;
323end:
f5eac85e 324 BIO_free(derout);
d02b48c6 325 if (in != NULL) BIO_free(in);
645749ef 326 if (out != NULL) BIO_free_all(out);
d02b48c6
RE
327 if (b64 != NULL) BIO_free(b64);
328 if (ret != 0)
329 ERR_print_errors(bio_err);
330 if (buf != NULL) BUF_MEM_free(buf);
dfeab068
RE
331 if (at != NULL) ASN1_TYPE_free(at);
332 if (osk != NULL) sk_free(osk);
58964a49 333 OBJ_cleanup();
c04f8cf4 334 apps_shutdown();
d02b48c6
RE
335 EXIT(ret);
336 }
337