some const fixes
[openssl.git] / apps / crl.c
1 /* apps/crl.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 <stdlib.h>
61 #include <string.h>
62 #include "apps.h"
63 #include <openssl/bio.h>
64 #include <openssl/err.h>
65 #include <openssl/x509.h>
66 #include <openssl/x509v3.h>
67 #include <openssl/pem.h>
68
69 #undef PROG
70 #define PROG    crl_main
71
72 #undef POSTFIX
73 #define POSTFIX ".rvk"
74
75 static const char *crl_usage[]={
76 "usage: crl args\n",
77 "\n",
78 " -inform arg     - input format - default PEM (DER or PEM)\n",
79 " -outform arg    - output format - default PEM\n",
80 " -text           - print out a text format version\n",
81 " -in arg         - input file - default stdin\n",
82 " -out arg        - output file - default stdout\n",
83 " -hash           - print hash value\n",
84 " -fingerprint    - print the crl fingerprint\n",
85 " -issuer         - print issuer DN\n",
86 " -lastupdate     - lastUpdate field\n",
87 " -nextupdate     - nextUpdate field\n",
88 " -noout          - no CRL output\n",
89 " -CAfile  name   - verify CRL using certificates in file \"name\"\n",
90 " -CApath  dir    - verify CRL using certificates in \"dir\"\n",
91 " -nameopt arg    - various certificate name options\n",
92 NULL
93 };
94
95 static X509_CRL *load_crl(char *file, int format);
96 static BIO *bio_out=NULL;
97
98 int MAIN(int, char **);
99
100 int MAIN(int argc, char **argv)
101         {
102         unsigned long nmflag = 0;
103         X509_CRL *x=NULL;
104         char *CAfile = NULL, *CApath = NULL;
105         int ret=1,i,num,badops=0;
106         BIO *out=NULL;
107         int informat,outformat;
108         char *infile=NULL,*outfile=NULL;
109         int hash=0,issuer=0,lastupdate=0,nextupdate=0,noout=0,text=0;
110         int fingerprint = 0;
111         const char **pp;
112         X509_STORE *store = NULL;
113         X509_STORE_CTX ctx;
114         X509_LOOKUP *lookup = NULL;
115         X509_OBJECT xobj;
116         EVP_PKEY *pkey;
117         int do_ver = 0;
118         const EVP_MD *md_alg,*digest=EVP_sha1();
119
120         apps_startup();
121
122         if (bio_err == NULL)
123                 if ((bio_err=BIO_new(BIO_s_file())) != NULL)
124                         BIO_set_fp(bio_err,stderr,BIO_NOCLOSE|BIO_FP_TEXT);
125
126         if (!load_config(bio_err, NULL))
127                 goto end;
128
129         if (bio_out == NULL)
130                 if ((bio_out=BIO_new(BIO_s_file())) != NULL)
131                         {
132                         BIO_set_fp(bio_out,stdout,BIO_NOCLOSE);
133 #ifdef OPENSSL_SYS_VMS
134                         {
135                         BIO *tmpbio = BIO_new(BIO_f_linebuffer());
136                         bio_out = BIO_push(tmpbio, bio_out);
137                         }
138 #endif
139                         }
140
141         informat=FORMAT_PEM;
142         outformat=FORMAT_PEM;
143
144         argc--;
145         argv++;
146         num=0;
147         while (argc >= 1)
148                 {
149 #ifdef undef
150                 if      (strcmp(*argv,"-p") == 0)
151                         {
152                         if (--argc < 1) goto bad;
153                         if (!args_from_file(++argv,Nargc,Nargv)) { goto end; }*/
154                         }
155 #endif
156                 if      (strcmp(*argv,"-inform") == 0)
157                         {
158                         if (--argc < 1) goto bad;
159                         informat=str2fmt(*(++argv));
160                         }
161                 else if (strcmp(*argv,"-outform") == 0)
162                         {
163                         if (--argc < 1) goto bad;
164                         outformat=str2fmt(*(++argv));
165                         }
166                 else if (strcmp(*argv,"-in") == 0)
167                         {
168                         if (--argc < 1) goto bad;
169                         infile= *(++argv);
170                         }
171                 else if (strcmp(*argv,"-out") == 0)
172                         {
173                         if (--argc < 1) goto bad;
174                         outfile= *(++argv);
175                         }
176                 else if (strcmp(*argv,"-CApath") == 0)
177                         {
178                         if (--argc < 1) goto bad;
179                         CApath = *(++argv);
180                         do_ver = 1;
181                         }
182                 else if (strcmp(*argv,"-CAfile") == 0)
183                         {
184                         if (--argc < 1) goto bad;
185                         CAfile = *(++argv);
186                         do_ver = 1;
187                         }
188                 else if (strcmp(*argv,"-verify") == 0)
189                         do_ver = 1;
190                 else if (strcmp(*argv,"-text") == 0)
191                         text = 1;
192                 else if (strcmp(*argv,"-hash") == 0)
193                         hash= ++num;
194                 else if (strcmp(*argv,"-nameopt") == 0)
195                         {
196                         if (--argc < 1) goto bad;
197                         if (!set_name_ex(&nmflag, *(++argv))) goto bad;
198                         }
199                 else if (strcmp(*argv,"-issuer") == 0)
200                         issuer= ++num;
201                 else if (strcmp(*argv,"-lastupdate") == 0)
202                         lastupdate= ++num;
203                 else if (strcmp(*argv,"-nextupdate") == 0)
204                         nextupdate= ++num;
205                 else if (strcmp(*argv,"-noout") == 0)
206                         noout= ++num;
207                 else if (strcmp(*argv,"-fingerprint") == 0)
208                         fingerprint= ++num;
209                 else if ((md_alg=EVP_get_digestbyname(*argv + 1)))
210                         {
211                         /* ok */
212                         digest=md_alg;
213                         }
214                 else
215                         {
216                         BIO_printf(bio_err,"unknown option %s\n",*argv);
217                         badops=1;
218                         break;
219                         }
220                 argc--;
221                 argv++;
222                 }
223
224         if (badops)
225                 {
226 bad:
227                 for (pp=crl_usage; (*pp != NULL); pp++)
228                         BIO_printf(bio_err,"%s",*pp);
229                 goto end;
230                 }
231
232         ERR_load_crypto_strings();
233         x=load_crl(infile,informat);
234         if (x == NULL) { goto end; }
235
236         if(do_ver) {
237                 store = X509_STORE_new();
238                 lookup=X509_STORE_add_lookup(store,X509_LOOKUP_file());
239                 if (lookup == NULL) goto end;
240                 if (!X509_LOOKUP_load_file(lookup,CAfile,X509_FILETYPE_PEM))
241                         X509_LOOKUP_load_file(lookup,NULL,X509_FILETYPE_DEFAULT);
242                         
243                 lookup=X509_STORE_add_lookup(store,X509_LOOKUP_hash_dir());
244                 if (lookup == NULL) goto end;
245                 if (!X509_LOOKUP_add_dir(lookup,CApath,X509_FILETYPE_PEM))
246                         X509_LOOKUP_add_dir(lookup,NULL,X509_FILETYPE_DEFAULT);
247                 ERR_clear_error();
248
249                 if(!X509_STORE_CTX_init(&ctx, store, NULL, NULL)) {
250                         BIO_printf(bio_err,
251                                 "Error initialising X509 store\n");
252                         goto end;
253                 }
254
255                 i = X509_STORE_get_by_subject(&ctx, X509_LU_X509, 
256                                         X509_CRL_get_issuer(x), &xobj);
257                 if(i <= 0) {
258                         BIO_printf(bio_err,
259                                 "Error getting CRL issuer certificate\n");
260                         goto end;
261                 }
262                 pkey = X509_get_pubkey(xobj.data.x509);
263                 X509_OBJECT_free_contents(&xobj);
264                 if(!pkey) {
265                         BIO_printf(bio_err,
266                                 "Error getting CRL issuer public key\n");
267                         goto end;
268                 }
269                 i = X509_CRL_verify(x, pkey);
270                 EVP_PKEY_free(pkey);
271                 if(i < 0) goto end;
272                 if(i == 0) BIO_printf(bio_err, "verify failure\n");
273                 else BIO_printf(bio_err, "verify OK\n");
274         }
275
276         if (num)
277                 {
278                 for (i=1; i<=num; i++)
279                         {
280                         if (issuer == i)
281                                 {
282                                 print_name(bio_out, "issuer=", X509_CRL_get_issuer(x), nmflag);
283                                 }
284
285                         if (hash == i)
286                                 {
287                                 BIO_printf(bio_out,"%08lx\n",
288                                         X509_NAME_hash(X509_CRL_get_issuer(x)));
289                                 }
290                         if (lastupdate == i)
291                                 {
292                                 BIO_printf(bio_out,"lastUpdate=");
293                                 ASN1_TIME_print(bio_out,
294                                                 X509_CRL_get_lastUpdate(x));
295                                 BIO_printf(bio_out,"\n");
296                                 }
297                         if (nextupdate == i)
298                                 {
299                                 BIO_printf(bio_out,"nextUpdate=");
300                                 if (X509_CRL_get_nextUpdate(x)) 
301                                         ASN1_TIME_print(bio_out,
302                                                 X509_CRL_get_nextUpdate(x));
303                                 else
304                                         BIO_printf(bio_out,"NONE");
305                                 BIO_printf(bio_out,"\n");
306                                 }
307                         if (fingerprint == i)
308                                 {
309                                 int j;
310                                 unsigned int n;
311                                 unsigned char md[EVP_MAX_MD_SIZE];
312
313                                 if (!X509_CRL_digest(x,digest,md,&n))
314                                         {
315                                         BIO_printf(bio_err,"out of memory\n");
316                                         goto end;
317                                         }
318                                 BIO_printf(bio_out,"%s Fingerprint=",
319                                                 OBJ_nid2sn(EVP_MD_type(digest)));
320                                 for (j=0; j<(int)n; j++)
321                                         {
322                                         BIO_printf(bio_out,"%02X%c",md[j],
323                                                 (j+1 == (int)n)
324                                                 ?'\n':':');
325                                         }
326                                 }
327                         }
328                 }
329
330         out=BIO_new(BIO_s_file());
331         if (out == NULL)
332                 {
333                 ERR_print_errors(bio_err);
334                 goto end;
335                 }
336
337         if (outfile == NULL)
338                 {
339                 BIO_set_fp(out,stdout,BIO_NOCLOSE);
340 #ifdef OPENSSL_SYS_VMS
341                 {
342                 BIO *tmpbio = BIO_new(BIO_f_linebuffer());
343                 out = BIO_push(tmpbio, out);
344                 }
345 #endif
346                 }
347         else
348                 {
349                 if (BIO_write_filename(out,outfile) <= 0)
350                         {
351                         perror(outfile);
352                         goto end;
353                         }
354                 }
355
356         if (text) X509_CRL_print(out, x);
357
358         if (noout) 
359                 {
360                 ret = 0;
361                 goto end;
362                 }
363
364         if      (outformat == FORMAT_ASN1)
365                 i=(int)i2d_X509_CRL_bio(out,x);
366         else if (outformat == FORMAT_PEM)
367                 i=PEM_write_bio_X509_CRL(out,x);
368         else    
369                 {
370                 BIO_printf(bio_err,"bad output format specified for outfile\n");
371                 goto end;
372                 }
373         if (!i) { BIO_printf(bio_err,"unable to write CRL\n"); goto end; }
374         ret=0;
375 end:
376         BIO_free_all(out);
377         BIO_free_all(bio_out);
378         bio_out=NULL;
379         X509_CRL_free(x);
380         if(store) {
381                 X509_STORE_CTX_cleanup(&ctx);
382                 X509_STORE_free(store);
383         }
384         apps_shutdown();
385         OPENSSL_EXIT(ret);
386         }
387
388 static X509_CRL *load_crl(char *infile, int format)
389         {
390         X509_CRL *x=NULL;
391         BIO *in=NULL;
392
393         in=BIO_new(BIO_s_file());
394         if (in == NULL)
395                 {
396                 ERR_print_errors(bio_err);
397                 goto end;
398                 }
399
400         if (infile == NULL)
401                 BIO_set_fp(in,stdin,BIO_NOCLOSE);
402         else
403                 {
404                 if (BIO_read_filename(in,infile) <= 0)
405                         {
406                         perror(infile);
407                         goto end;
408                         }
409                 }
410         if      (format == FORMAT_ASN1)
411                 x=d2i_X509_CRL_bio(in,NULL);
412         else if (format == FORMAT_PEM)
413                 x=PEM_read_bio_X509_CRL(in,NULL,NULL,NULL);
414         else    {
415                 BIO_printf(bio_err,"bad input format specified for input crl\n");
416                 goto end;
417                 }
418         if (x == NULL)
419                 {
420                 BIO_printf(bio_err,"unable to load CRL\n");
421                 ERR_print_errors(bio_err);
422                 goto end;
423                 }
424         
425 end:
426         BIO_free(in);
427         return(x);
428         }
429