Use apps_shutdown() in all applications, in case someone decides not
[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 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 " -issuer         - print issuer DN\n",
85 " -lastupdate     - lastUpdate field\n",
86 " -nextupdate     - nextUpdate field\n",
87 " -noout          - no CRL output\n",
88 " -CAfile  name   - verify CRL using certificates in file \"name\"\n",
89 " -CApath  dir    - verify CRL using certificates in \"dir\"\n",
90 NULL
91 };
92
93 static X509_CRL *load_crl(char *file, int format);
94 static BIO *bio_out=NULL;
95
96 int MAIN(int, char **);
97
98 int MAIN(int argc, char **argv)
99         {
100         X509_CRL *x=NULL;
101         char *CAfile = NULL, *CApath = NULL;
102         int ret=1,i,num,badops=0;
103         BIO *out=NULL;
104         int informat,outformat;
105         char *infile=NULL,*outfile=NULL;
106         int hash=0,issuer=0,lastupdate=0,nextupdate=0,noout=0,text=0;
107         int fingerprint = 0;
108         char **pp,buf[256];
109         X509_STORE *store = NULL;
110         X509_STORE_CTX ctx;
111         X509_LOOKUP *lookup = NULL;
112         X509_OBJECT xobj;
113         EVP_PKEY *pkey;
114         int do_ver = 0;
115         const EVP_MD *md_alg,*digest=EVP_md5();
116
117         apps_startup();
118
119         if (bio_err == NULL)
120                 if ((bio_err=BIO_new(BIO_s_file())) != NULL)
121                         BIO_set_fp(bio_err,stderr,BIO_NOCLOSE|BIO_FP_TEXT);
122
123         if (bio_out == NULL)
124                 if ((bio_out=BIO_new(BIO_s_file())) != NULL)
125                         {
126                         BIO_set_fp(bio_out,stdout,BIO_NOCLOSE);
127 #ifdef OPENSSL_SYS_VMS
128                         {
129                         BIO *tmpbio = BIO_new(BIO_f_linebuffer());
130                         bio_out = BIO_push(tmpbio, bio_out);
131                         }
132 #endif
133                         }
134
135         informat=FORMAT_PEM;
136         outformat=FORMAT_PEM;
137
138         argc--;
139         argv++;
140         num=0;
141         while (argc >= 1)
142                 {
143 #ifdef undef
144                 if      (strcmp(*argv,"-p") == 0)
145                         {
146                         if (--argc < 1) goto bad;
147                         if (!args_from_file(++argv,Nargc,Nargv)) { goto end; }*/
148                         }
149 #endif
150                 if      (strcmp(*argv,"-inform") == 0)
151                         {
152                         if (--argc < 1) goto bad;
153                         informat=str2fmt(*(++argv));
154                         }
155                 else if (strcmp(*argv,"-outform") == 0)
156                         {
157                         if (--argc < 1) goto bad;
158                         outformat=str2fmt(*(++argv));
159                         }
160                 else if (strcmp(*argv,"-in") == 0)
161                         {
162                         if (--argc < 1) goto bad;
163                         infile= *(++argv);
164                         }
165                 else if (strcmp(*argv,"-out") == 0)
166                         {
167                         if (--argc < 1) goto bad;
168                         outfile= *(++argv);
169                         }
170                 else if (strcmp(*argv,"-CApath") == 0)
171                         {
172                         if (--argc < 1) goto bad;
173                         CApath = *(++argv);
174                         do_ver = 1;
175                         }
176                 else if (strcmp(*argv,"-CAfile") == 0)
177                         {
178                         if (--argc < 1) goto bad;
179                         CAfile = *(++argv);
180                         do_ver = 1;
181                         }
182                 else if (strcmp(*argv,"-verify") == 0)
183                         do_ver = 1;
184                 else if (strcmp(*argv,"-text") == 0)
185                         text = 1;
186                 else if (strcmp(*argv,"-hash") == 0)
187                         hash= ++num;
188                 else if (strcmp(*argv,"-issuer") == 0)
189                         issuer= ++num;
190                 else if (strcmp(*argv,"-lastupdate") == 0)
191                         lastupdate= ++num;
192                 else if (strcmp(*argv,"-nextupdate") == 0)
193                         nextupdate= ++num;
194                 else if (strcmp(*argv,"-noout") == 0)
195                         noout= ++num;
196                 else if (strcmp(*argv,"-fingerprint") == 0)
197                         fingerprint= ++num;
198                 else if ((md_alg=EVP_get_digestbyname(*argv + 1)))
199                         {
200                         /* ok */
201                         digest=md_alg;
202                         }
203                 else
204                         {
205                         BIO_printf(bio_err,"unknown option %s\n",*argv);
206                         badops=1;
207                         break;
208                         }
209                 argc--;
210                 argv++;
211                 }
212
213         if (badops)
214                 {
215 bad:
216                 for (pp=crl_usage; (*pp != NULL); pp++)
217                         BIO_printf(bio_err,"%s",*pp);
218                 goto end;
219                 }
220
221         ERR_load_crypto_strings();
222         x=load_crl(infile,informat);
223         if (x == NULL) { goto end; }
224
225         if(do_ver) {
226                 store = X509_STORE_new();
227                 lookup=X509_STORE_add_lookup(store,X509_LOOKUP_file());
228                 if (lookup == NULL) goto end;
229                 if (!X509_LOOKUP_load_file(lookup,CAfile,X509_FILETYPE_PEM))
230                         X509_LOOKUP_load_file(lookup,NULL,X509_FILETYPE_DEFAULT);
231                         
232                 lookup=X509_STORE_add_lookup(store,X509_LOOKUP_hash_dir());
233                 if (lookup == NULL) goto end;
234                 if (!X509_LOOKUP_add_dir(lookup,CApath,X509_FILETYPE_PEM))
235                         X509_LOOKUP_add_dir(lookup,NULL,X509_FILETYPE_DEFAULT);
236                 ERR_clear_error();
237
238                 X509_STORE_CTX_init(&ctx, store, NULL, NULL);
239
240                 i = X509_STORE_get_by_subject(&ctx, X509_LU_X509, 
241                                         X509_CRL_get_issuer(x), &xobj);
242                 if(i <= 0) {
243                         BIO_printf(bio_err,
244                                 "Error getting CRL issuer certificate\n");
245                         goto end;
246                 }
247                 pkey = X509_get_pubkey(xobj.data.x509);
248                 X509_OBJECT_free_contents(&xobj);
249                 if(!pkey) {
250                         BIO_printf(bio_err,
251                                 "Error getting CRL issuer public key\n");
252                         goto end;
253                 }
254                 i = X509_CRL_verify(x, pkey);
255                 EVP_PKEY_free(pkey);
256                 if(i < 0) goto end;
257                 if(i == 0) BIO_printf(bio_err, "verify failure\n");
258                 else BIO_printf(bio_err, "verify OK\n");
259         }
260
261         if (num)
262                 {
263                 for (i=1; i<=num; i++)
264                         {
265                         if (issuer == i)
266                                 {
267                                 X509_NAME_oneline(X509_CRL_get_issuer(x),
268                                                                 buf,256);
269                                 BIO_printf(bio_out,"issuer= %s\n",buf);
270                                 }
271
272                         if (hash == i)
273                                 {
274                                 BIO_printf(bio_out,"%08lx\n",
275                                         X509_NAME_hash(X509_CRL_get_issuer(x)));
276                                 }
277                         if (lastupdate == i)
278                                 {
279                                 BIO_printf(bio_out,"lastUpdate=");
280                                 ASN1_TIME_print(bio_out,
281                                                 X509_CRL_get_lastUpdate(x));
282                                 BIO_printf(bio_out,"\n");
283                                 }
284                         if (nextupdate == i)
285                                 {
286                                 BIO_printf(bio_out,"nextUpdate=");
287                                 if (X509_CRL_get_nextUpdate(x)) 
288                                         ASN1_TIME_print(bio_out,
289                                                 X509_CRL_get_nextUpdate(x));
290                                 else
291                                         BIO_printf(bio_out,"NONE");
292                                 BIO_printf(bio_out,"\n");
293                                 }
294                         if (fingerprint == i)
295                                 {
296                                 int j;
297                                 unsigned int n;
298                                 unsigned char md[EVP_MAX_MD_SIZE];
299
300                                 if (!X509_CRL_digest(x,digest,md,&n))
301                                         {
302                                         BIO_printf(bio_err,"out of memory\n");
303                                         goto end;
304                                         }
305                                 BIO_printf(bio_out,"%s Fingerprint=",
306                                                 OBJ_nid2sn(EVP_MD_type(digest)));
307                                 for (j=0; j<(int)n; j++)
308                                         {
309                                         BIO_printf(bio_out,"%02X%c",md[j],
310                                                 (j+1 == (int)n)
311                                                 ?'\n':':');
312                                         }
313                                 }
314                         }
315                 }
316
317         out=BIO_new(BIO_s_file());
318         if (out == NULL)
319                 {
320                 ERR_print_errors(bio_err);
321                 goto end;
322                 }
323
324         if (outfile == NULL)
325                 {
326                 BIO_set_fp(out,stdout,BIO_NOCLOSE);
327 #ifdef OPENSSL_SYS_VMS
328                 {
329                 BIO *tmpbio = BIO_new(BIO_f_linebuffer());
330                 out = BIO_push(tmpbio, out);
331                 }
332 #endif
333                 }
334         else
335                 {
336                 if (BIO_write_filename(out,outfile) <= 0)
337                         {
338                         perror(outfile);
339                         goto end;
340                         }
341                 }
342
343         if (text) X509_CRL_print(out, x);
344
345         if (noout) goto end;
346
347         if      (outformat == FORMAT_ASN1)
348                 i=(int)i2d_X509_CRL_bio(out,x);
349         else if (outformat == FORMAT_PEM)
350                 i=PEM_write_bio_X509_CRL(out,x);
351         else    
352                 {
353                 BIO_printf(bio_err,"bad output format specified for outfile\n");
354                 goto end;
355                 }
356         if (!i) { BIO_printf(bio_err,"unable to write CRL\n"); goto end; }
357         ret=0;
358 end:
359         BIO_free_all(out);
360         BIO_free_all(bio_out);
361         bio_out=NULL;
362         X509_CRL_free(x);
363         if(store) {
364                 X509_STORE_CTX_cleanup(&ctx);
365                 X509_STORE_free(store);
366         }
367         apps_shutdown();
368         EXIT(ret);
369         }
370
371 static X509_CRL *load_crl(char *infile, int format)
372         {
373         X509_CRL *x=NULL;
374         BIO *in=NULL;
375
376         in=BIO_new(BIO_s_file());
377         if (in == NULL)
378                 {
379                 ERR_print_errors(bio_err);
380                 goto end;
381                 }
382
383         if (infile == NULL)
384                 BIO_set_fp(in,stdin,BIO_NOCLOSE);
385         else
386                 {
387                 if (BIO_read_filename(in,infile) <= 0)
388                         {
389                         perror(infile);
390                         goto end;
391                         }
392                 }
393         if      (format == FORMAT_ASN1)
394                 x=d2i_X509_CRL_bio(in,NULL);
395         else if (format == FORMAT_PEM)
396                 x=PEM_read_bio_X509_CRL(in,NULL,NULL,NULL);
397         else    {
398                 BIO_printf(bio_err,"bad input format specified for input crl\n");
399                 goto end;
400                 }
401         if (x == NULL)
402                 {
403                 BIO_printf(bio_err,"unable to load CRL\n");
404                 ERR_print_errors(bio_err);
405                 goto end;
406                 }
407         
408 end:
409         BIO_free(in);
410         return(x);
411         }
412