Bring the README file in sync and shape a little bit more...
[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 "bio.h"
64 #include "err.h"
65 #include "x509.h"
66 #include "x509v3.h"
67 #include "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 (one of DER, TXT 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 NULL
89 };
90
91 #ifndef NOPROTO
92 static X509_CRL *load_crl(char *file, int format);
93 #else
94 static X509_CRL *load_crl();
95 #endif
96
97 static BIO *bio_out=NULL;
98
99 int MAIN(argc, argv)
100 int argc;
101 char **argv;
102         {
103         X509_CRL *x=NULL;
104         int ret=1,i,num,badops=0;
105         BIO *out=NULL;
106         int informat,outformat;
107         char *infile=NULL,*outfile=NULL;
108         int hash=0,issuer=0,lastupdate=0,nextupdate=0,noout=0,text=0;
109         char **pp,buf[256];
110
111         apps_startup();
112
113         if (bio_err == NULL)
114                 if ((bio_err=BIO_new(BIO_s_file())) != NULL)
115                         BIO_set_fp(bio_err,stderr,BIO_NOCLOSE|BIO_FP_TEXT);
116
117         if (bio_out == NULL)
118                 if ((bio_out=BIO_new(BIO_s_file())) != NULL)
119                         BIO_set_fp(bio_out,stdout,BIO_NOCLOSE);
120
121         informat=FORMAT_PEM;
122         outformat=FORMAT_PEM;
123
124         argc--;
125         argv++;
126         num=0;
127         while (argc >= 1)
128                 {
129 #ifdef undef
130                 if      (strcmp(*argv,"-p") == 0)
131                         {
132                         if (--argc < 1) goto bad;
133                         if (!args_from_file(++argv,Nargc,Nargv)) { goto end; }*/
134                         }
135 #endif
136                 if      (strcmp(*argv,"-inform") == 0)
137                         {
138                         if (--argc < 1) goto bad;
139                         informat=str2fmt(*(++argv));
140                         }
141                 else if (strcmp(*argv,"-outform") == 0)
142                         {
143                         if (--argc < 1) goto bad;
144                         outformat=str2fmt(*(++argv));
145                         }
146                 else if (strcmp(*argv,"-in") == 0)
147                         {
148                         if (--argc < 1) goto bad;
149                         infile= *(++argv);
150                         }
151                 else if (strcmp(*argv,"-out") == 0)
152                         {
153                         if (--argc < 1) goto bad;
154                         outfile= *(++argv);
155                         }
156                 else if (strcmp(*argv,"-text") == 0)
157                         text = 1;
158                 else if (strcmp(*argv,"-hash") == 0)
159                         hash= ++num;
160                 else if (strcmp(*argv,"-issuer") == 0)
161                         issuer= ++num;
162                 else if (strcmp(*argv,"-lastupdate") == 0)
163                         lastupdate= ++num;
164                 else if (strcmp(*argv,"-nextupdate") == 0)
165                         nextupdate= ++num;
166                 else if (strcmp(*argv,"-noout") == 0)
167                         noout= ++num;
168                 else
169                         {
170                         BIO_printf(bio_err,"unknown option %s\n",*argv);
171                         badops=1;
172                         break;
173                         }
174                 argc--;
175                 argv++;
176                 }
177
178         if (badops)
179                 {
180 bad:
181                 for (pp=crl_usage; (*pp != NULL); pp++)
182                         BIO_printf(bio_err,*pp);
183                 goto end;
184                 }
185
186         ERR_load_crypto_strings();
187         X509V3_add_standard_extensions();
188         x=load_crl(infile,informat);
189         if (x == NULL) { goto end; }
190
191         if (num)
192                 {
193                 for (i=1; i<=num; i++)
194                         {
195                         if (issuer == i)
196                                 {
197                                 X509_NAME_oneline(x->crl->issuer,buf,256);
198                                 BIO_printf(bio_out,"issuer= %s\n",buf);
199                                 }
200
201                         if (hash == i)
202                                 {
203                                 BIO_printf(bio_out,"%08lx\n",
204                                         X509_NAME_hash(x->crl->issuer));
205                                 }
206                         if (lastupdate == i)
207                                 {
208                                 BIO_printf(bio_out,"lastUpdate=");
209                                 ASN1_TIME_print(bio_out,x->crl->lastUpdate);
210                                 BIO_printf(bio_out,"\n");
211                                 }
212                         if (nextupdate == i)
213                                 {
214                                 BIO_printf(bio_out,"nextUpdate=");
215                                 if (x->crl->nextUpdate != NULL)
216                                         ASN1_TIME_print(bio_out,x->crl->nextUpdate);
217                                 else
218                                         BIO_printf(bio_out,"NONE");
219                                 BIO_printf(bio_out,"\n");
220                                 }
221                         }
222                 }
223
224         if (noout) goto end;
225
226         out=BIO_new(BIO_s_file());
227         if (out == NULL)
228                 {
229                 ERR_print_errors(bio_err);
230                 goto end;
231                 }
232
233         if (outfile == NULL)
234                 BIO_set_fp(out,stdout,BIO_NOCLOSE);
235         else
236                 {
237                 if (BIO_write_filename(out,outfile) <= 0)
238                         {
239                         perror(outfile);
240                         goto end;
241                         }
242                 }
243
244         if (text) X509_CRL_print(out, x);
245         if      (outformat == FORMAT_ASN1)
246                 i=(int)i2d_X509_CRL_bio(out,x);
247         else if (outformat == FORMAT_PEM)
248                 i=PEM_write_bio_X509_CRL(out,x);
249         else    
250                 {
251                 BIO_printf(bio_err,"bad output format specified for outfile\n");
252                 goto end;
253                 }
254         if (!i) { BIO_printf(bio_err,"unable to write CRL\n"); goto end; }
255         ret=0;
256 end:
257         BIO_free(out);
258         BIO_free(bio_out);
259         X509_CRL_free(x);
260         X509V3_EXT_cleanup();
261         EXIT(ret);
262         }
263
264 static X509_CRL *load_crl(infile, format)
265 char *infile;
266 int format;
267         {
268         X509_CRL *x=NULL;
269         BIO *in=NULL;
270
271         in=BIO_new(BIO_s_file());
272         if (in == NULL)
273                 {
274                 ERR_print_errors(bio_err);
275                 goto end;
276                 }
277
278         if (infile == NULL)
279                 BIO_set_fp(in,stdin,BIO_NOCLOSE);
280         else
281                 {
282                 if (BIO_read_filename(in,infile) <= 0)
283                         {
284                         perror(infile);
285                         goto end;
286                         }
287                 }
288         if      (format == FORMAT_ASN1)
289                 x=d2i_X509_CRL_bio(in,NULL);
290         else if (format == FORMAT_PEM)
291                 x=PEM_read_bio_X509_CRL(in,NULL,NULL);
292         else    {
293                 BIO_printf(bio_err,"bad input format specified for input crl\n");
294                 goto end;
295                 }
296         if (x == NULL)
297                 {
298                 BIO_printf(bio_err,"unable to load CRL\n");
299                 ERR_print_errors(bio_err);
300                 goto end;
301                 }
302         
303 end:
304         BIO_free(in);
305         return(x);
306         }
307