Don't compile heartbeat test code on Windows (for now).
[openssl.git] / apps / asn1pars.c
1 /* apps/asn1pars.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 /* A nice addition from Dr Stephen Henson <steve@openssl.org> to 
60  * add the -strparse option which parses nested binary structures
61  */
62
63 #include <stdio.h>
64 #include <stdlib.h>
65 #include <string.h>
66 #include "apps.h"
67 #include <openssl/err.h>
68 #include <openssl/evp.h>
69 #include <openssl/x509.h>
70 #include <openssl/pem.h>
71
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
77  * -oid file    - extra oid description file
78  */
79
80 #undef PROG
81 #define PROG    asn1parse_main
82
83
84 int MAIN(int, char **);
85
86 static int do_generate(BIO *bio, char *genstr, char *genconf, BUF_MEM *buf);
87
88 int MAIN(int argc, char **argv)
89         {
90         int i,badops=0,offset=0,ret=1,j;
91         unsigned int length=0;
92         long num,tmplen;
93         BIO *in=NULL,*out=NULL,*b64=NULL, *derout = NULL;
94         int informat,indent=0, noout = 0, dump = 0, strictpem = 0;
95         char *infile=NULL,*str=NULL,*prog,*oidfile=NULL, *derfile=NULL, *name=NULL, *header=NULL;
96         char *genstr=NULL, *genconf=NULL;
97         unsigned char *tmpbuf;
98         const unsigned char *ctmpbuf;
99         BUF_MEM *buf=NULL;
100         STACK_OF(OPENSSL_STRING) *osk=NULL;
101         ASN1_TYPE *at=NULL;
102
103         informat=FORMAT_PEM;
104
105         apps_startup();
106
107         if (bio_err == NULL)
108                 if ((bio_err=BIO_new(BIO_s_file())) != NULL)
109                         BIO_set_fp(bio_err,stderr,BIO_NOCLOSE|BIO_FP_TEXT);
110
111         if (!load_config(bio_err, NULL))
112                 goto end;
113
114         prog=argv[0];
115         argc--;
116         argv++;
117         if ((osk=sk_OPENSSL_STRING_new_null()) == NULL)
118                 {
119                 BIO_printf(bio_err,"Memory allocation failure\n");
120                 goto end;
121                 }
122         while (argc >= 1)
123                 {
124                 if      (strcmp(*argv,"-inform") == 0)
125                         {
126                         if (--argc < 1) goto bad;
127                         informat=str2fmt(*(++argv));
128                         }
129                 else if (strcmp(*argv,"-in") == 0)
130                         {
131                         if (--argc < 1) goto bad;
132                         infile= *(++argv);
133                         }
134                 else if (strcmp(*argv,"-out") == 0)
135                         {
136                         if (--argc < 1) goto bad;
137                         derfile= *(++argv);
138                         }
139                 else if (strcmp(*argv,"-i") == 0)
140                         {
141                         indent=1;
142                         }
143                 else if (strcmp(*argv,"-noout") == 0) noout = 1;
144                 else if (strcmp(*argv,"-oid") == 0)
145                         {
146                         if (--argc < 1) goto bad;
147                         oidfile= *(++argv);
148                         }
149                 else if (strcmp(*argv,"-offset") == 0)
150                         {
151                         if (--argc < 1) goto bad;
152                         offset= atoi(*(++argv));
153                         }
154                 else if (strcmp(*argv,"-length") == 0)
155                         {
156                         if (--argc < 1) goto bad;
157                         length= atoi(*(++argv));
158                         if (length == 0) goto bad;
159                         }
160                 else if (strcmp(*argv,"-dump") == 0)
161                         {
162                         dump= -1;
163                         }
164                 else if (strcmp(*argv,"-dlimit") == 0)
165                         {
166                         if (--argc < 1) goto bad;
167                         dump= atoi(*(++argv));
168                         if (dump <= 0) goto bad;
169                         }
170                 else if (strcmp(*argv,"-strparse") == 0)
171                         {
172                         if (--argc < 1) goto bad;
173                         sk_OPENSSL_STRING_push(osk,*(++argv));
174                         }
175                 else if (strcmp(*argv,"-genstr") == 0)
176                         {
177                         if (--argc < 1) goto bad;
178                         genstr= *(++argv);
179                         }
180                 else if (strcmp(*argv,"-genconf") == 0)
181                         {
182                         if (--argc < 1) goto bad;
183                         genconf= *(++argv);
184                         }
185                 else if (strcmp(*argv,"-strictpem") == 0)
186                         {
187                         strictpem = 1;
188                         informat = FORMAT_PEM;
189                         }
190                 else
191                         {
192                         BIO_printf(bio_err,"unknown option %s\n",*argv);
193                         badops=1;
194                         break;
195                         }
196                 argc--;
197                 argv++;
198                 }
199
200         if (badops)
201                 {
202 bad:
203                 BIO_printf(bio_err,"%s [options] <infile\n",prog);
204                 BIO_printf(bio_err,"where options are\n");
205                 BIO_printf(bio_err," -inform arg   input format - one of DER PEM\n");
206                 BIO_printf(bio_err," -in arg       input file\n");
207                 BIO_printf(bio_err," -out arg      output file (output format is always DER\n");
208                 BIO_printf(bio_err," -noout arg    don't produce any output\n");
209                 BIO_printf(bio_err," -offset arg   offset into file\n");
210                 BIO_printf(bio_err," -length arg   length of section in file\n");
211                 BIO_printf(bio_err," -i            indent entries\n");
212                 BIO_printf(bio_err," -dump         dump unknown data in hex form\n");
213                 BIO_printf(bio_err," -dlimit arg   dump the first arg bytes of unknown data in hex form\n");
214                 BIO_printf(bio_err," -oid file     file of extra oid definitions\n");
215                 BIO_printf(bio_err," -strparse offset\n");
216                 BIO_printf(bio_err,"               a series of these can be used to 'dig' into multiple\n");
217                 BIO_printf(bio_err,"               ASN1 blob wrappings\n");
218                 BIO_printf(bio_err," -genstr str   string to generate ASN1 structure from\n");
219                 BIO_printf(bio_err," -genconf file file to generate ASN1 structure from\n");
220                 BIO_printf(bio_err," -strictpem    do not attempt base64 decode outside PEM markers (-inform \n");
221                 BIO_printf(bio_err,"               will be ignored)\n");
222                 goto end;
223                 }
224
225         ERR_load_crypto_strings();
226
227         in=BIO_new(BIO_s_file());
228         out=BIO_new(BIO_s_file());
229         if ((in == NULL) || (out == NULL))
230                 {
231                 ERR_print_errors(bio_err);
232                 goto end;
233                 }
234         BIO_set_fp(out,stdout,BIO_NOCLOSE|BIO_FP_TEXT);
235 #ifdef OPENSSL_SYS_VMS
236         {
237         BIO *tmpbio = BIO_new(BIO_f_linebuffer());
238         out = BIO_push(tmpbio, out);
239         }
240 #endif
241
242         if (oidfile != NULL)
243                 {
244                 if (BIO_read_filename(in,oidfile) <= 0)
245                         {
246                         BIO_printf(bio_err,"problems opening %s\n",oidfile);
247                         ERR_print_errors(bio_err);
248                         goto end;
249                         }
250                 OBJ_create_objects(in);
251                 }
252
253         if (infile == NULL)
254                 BIO_set_fp(in,stdin,BIO_NOCLOSE);
255         else
256                 {
257                 if (BIO_read_filename(in,infile) <= 0)
258                         {
259                         perror(infile);
260                         goto end;
261                         }
262                 }
263
264         if (derfile) {
265                 if(!(derout = BIO_new_file(derfile, "wb"))) {
266                         BIO_printf(bio_err,"problems opening %s\n",derfile);
267                         ERR_print_errors(bio_err);
268                         goto end;
269                 }
270         }
271
272         if(strictpem)
273                 {
274                 if(PEM_read_bio(in, &name, &header, (unsigned char **)&str, &num) != 1)
275                         {
276                         BIO_printf(bio_err,"Error reading PEM file\n");
277                         ERR_print_errors(bio_err);
278                         goto end;
279                         }
280                 }
281         else
282                 {
283
284                 if ((buf=BUF_MEM_new()) == NULL) goto end;
285                 if (!BUF_MEM_grow(buf,BUFSIZ*8)) goto end; /* Pre-allocate :-) */
286
287                 if (genstr || genconf)
288                         {
289                         num = do_generate(bio_err, genstr, genconf, buf);
290                         if (num < 0)
291                                 {
292                                 ERR_print_errors(bio_err);
293                                 goto end;
294                                 }
295                         }
296
297                 else
298                         {
299
300                         if (informat == FORMAT_PEM)
301                                 {
302                                 BIO *tmp;
303
304                                 if ((b64=BIO_new(BIO_f_base64())) == NULL)
305                                         goto end;
306                                 BIO_push(b64,in);
307                                 tmp=in;
308                                 in=b64;
309                                 b64=tmp;
310                                 }
311
312                         num=0;
313                         for (;;)
314                                 {
315                                 if (!BUF_MEM_grow(buf,(int)num+BUFSIZ)) goto end;
316                                 i=BIO_read(in,&(buf->data[num]),BUFSIZ);
317                                 if (i <= 0) break;
318                                 num+=i;
319                                 }
320                         }
321                 str=buf->data;
322
323                 }
324
325         /* If any structs to parse go through in sequence */
326
327         if (sk_OPENSSL_STRING_num(osk))
328                 {
329                 tmpbuf=(unsigned char *)str;
330                 tmplen=num;
331                 for (i=0; i<sk_OPENSSL_STRING_num(osk); i++)
332                         {
333                         ASN1_TYPE *atmp;
334                         int typ;
335                         j=atoi(sk_OPENSSL_STRING_value(osk,i));
336                         if (j == 0)
337                                 {
338                                 BIO_printf(bio_err,"'%s' is an invalid number\n",sk_OPENSSL_STRING_value(osk,i));
339                                 continue;
340                                 }
341                         tmpbuf+=j;
342                         tmplen-=j;
343                         atmp = at;
344                         ctmpbuf = tmpbuf;
345                         at = d2i_ASN1_TYPE(NULL,&ctmpbuf,tmplen);
346                         ASN1_TYPE_free(atmp);
347                         if(!at)
348                                 {
349                                 BIO_printf(bio_err,"Error parsing structure\n");
350                                 ERR_print_errors(bio_err);
351                                 goto end;
352                                 }
353                         typ = ASN1_TYPE_get(at);
354                         if ((typ == V_ASN1_OBJECT)
355                                 || (typ == V_ASN1_NULL))
356                                 {
357                                 BIO_printf(bio_err, "Can't parse %s type\n",
358                                         typ == V_ASN1_NULL ? "NULL" : "OBJECT");
359                                 ERR_print_errors(bio_err);
360                                 goto end;
361                                 }
362                         /* hmm... this is a little evil but it works */
363                         tmpbuf=at->value.asn1_string->data;
364                         tmplen=at->value.asn1_string->length;
365                         }
366                 str=(char *)tmpbuf;
367                 num=tmplen;
368                 }
369
370         if (offset >= num)
371                 {
372                 BIO_printf(bio_err, "Error: offset too large\n");
373                 goto end;
374                 }
375
376         num -= offset;
377
378         if ((length == 0) || ((long)length > num)) length=(unsigned int)num;
379         if(derout) {
380                 if(BIO_write(derout, str + offset, length) != (int)length) {
381                         BIO_printf(bio_err, "Error writing output\n");
382                         ERR_print_errors(bio_err);
383                         goto end;
384                 }
385         }
386         if (!noout &&
387             !ASN1_parse_dump(out,(unsigned char *)&(str[offset]),length,
388                     indent,dump))
389                 {
390                 ERR_print_errors(bio_err);
391                 goto end;
392                 }
393         ret=0;
394 end:
395         BIO_free(derout);
396         if (in != NULL) BIO_free(in);
397         if (out != NULL) BIO_free_all(out);
398         if (b64 != NULL) BIO_free(b64);
399         if (ret != 0)
400                 ERR_print_errors(bio_err);
401         if (buf != NULL) BUF_MEM_free(buf);
402         if (name != NULL) OPENSSL_free(name);
403         if (header != NULL) OPENSSL_free(header);
404         if (strictpem && str != NULL) OPENSSL_free(str);
405         if (at != NULL) ASN1_TYPE_free(at);
406         if (osk != NULL) sk_OPENSSL_STRING_free(osk);
407         OBJ_cleanup();
408         apps_shutdown();
409         OPENSSL_EXIT(ret);
410         }
411
412 static int do_generate(BIO *bio, char *genstr, char *genconf, BUF_MEM *buf)
413         {
414         CONF *cnf = NULL;
415         int len;
416         long errline;
417         unsigned char *p;
418         ASN1_TYPE *atyp = NULL;
419
420         if (genconf)
421                 {
422                 cnf = NCONF_new(NULL);
423                 if (!NCONF_load(cnf, genconf, &errline))
424                         goto conferr;
425                 if (!genstr)
426                         genstr = NCONF_get_string(cnf, "default", "asn1");
427                 if (!genstr)
428                         {
429                         BIO_printf(bio, "Can't find 'asn1' in '%s'\n", genconf);
430                         goto err;
431                         }
432                 }
433
434         atyp = ASN1_generate_nconf(genstr, cnf);
435         NCONF_free(cnf);
436         cnf = NULL;
437
438         if (!atyp)
439                 return -1;
440
441         len = i2d_ASN1_TYPE(atyp, NULL);
442
443         if (len <= 0)
444                 goto err;
445
446         if (!BUF_MEM_grow(buf,len))
447                 goto err;
448
449         p=(unsigned char *)buf->data;
450
451         i2d_ASN1_TYPE(atyp, &p);
452
453         ASN1_TYPE_free(atyp);
454         return len;
455
456         conferr:
457
458         if (errline > 0)
459                 BIO_printf(bio, "Error on line %ld of config file '%s'\n",
460                                                         errline, genconf);
461         else
462                 BIO_printf(bio, "Error loading config file '%s'\n", genconf);
463
464         err:
465         NCONF_free(cnf);
466         ASN1_TYPE_free(atyp);
467
468         return -1;
469
470         }