Only use DSA-functions if available.
[openssl.git] / apps / pkcs7.c
1 /* apps/pkcs7.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 <time.h>
63 #include "apps.h"
64 #include <openssl/err.h>
65 #include <openssl/objects.h>
66 #include <openssl/evp.h>
67 #include <openssl/x509.h>
68 #include <openssl/pkcs7.h>
69 #include <openssl/pem.h>
70
71 #undef PROG
72 #define PROG    pkcs7_main
73
74 /* -inform arg  - input format - default PEM (DER or PEM)
75  * -outform arg - output format - default PEM
76  * -in arg      - input file - default stdin
77  * -out arg     - output file - default stdout
78  * -print_certs
79  */
80
81 int MAIN(int, char **);
82
83 int MAIN(int argc, char **argv)
84         {
85         ENGINE *e = NULL;
86         PKCS7 *p7=NULL;
87         int i,badops=0;
88         BIO *in=NULL,*out=NULL;
89         int informat,outformat;
90         char *infile,*outfile,*prog;
91         int print_certs=0,text=0,noout=0;
92         int ret=1;
93         char *engine=NULL;
94
95         apps_startup();
96
97         if (bio_err == NULL)
98                 if ((bio_err=BIO_new(BIO_s_file())) != NULL)
99                         BIO_set_fp(bio_err,stderr,BIO_NOCLOSE|BIO_FP_TEXT);
100
101         infile=NULL;
102         outfile=NULL;
103         informat=FORMAT_PEM;
104         outformat=FORMAT_PEM;
105
106         prog=argv[0];
107         argc--;
108         argv++;
109         while (argc >= 1)
110                 {
111                 if      (strcmp(*argv,"-inform") == 0)
112                         {
113                         if (--argc < 1) goto bad;
114                         informat=str2fmt(*(++argv));
115                         }
116                 else if (strcmp(*argv,"-outform") == 0)
117                         {
118                         if (--argc < 1) goto bad;
119                         outformat=str2fmt(*(++argv));
120                         }
121                 else if (strcmp(*argv,"-in") == 0)
122                         {
123                         if (--argc < 1) goto bad;
124                         infile= *(++argv);
125                         }
126                 else if (strcmp(*argv,"-out") == 0)
127                         {
128                         if (--argc < 1) goto bad;
129                         outfile= *(++argv);
130                         }
131                 else if (strcmp(*argv,"-noout") == 0)
132                         noout=1;
133                 else if (strcmp(*argv,"-text") == 0)
134                         text=1;
135                 else if (strcmp(*argv,"-print_certs") == 0)
136                         print_certs=1;
137                 else if (strcmp(*argv,"-engine") == 0)
138                         {
139                         if (--argc < 1) goto bad;
140                         engine= *(++argv);
141                         }
142                 else
143                         {
144                         BIO_printf(bio_err,"unknown option %s\n",*argv);
145                         badops=1;
146                         break;
147                         }
148                 argc--;
149                 argv++;
150                 }
151
152         if (badops)
153                 {
154 bad:
155                 BIO_printf(bio_err,"%s [options] <infile >outfile\n",prog);
156                 BIO_printf(bio_err,"where options are\n");
157                 BIO_printf(bio_err," -inform arg   input format - DER or PEM\n");
158                 BIO_printf(bio_err," -outform arg  output format - DER or PEM\n");
159                 BIO_printf(bio_err," -in arg       input file\n");
160                 BIO_printf(bio_err," -out arg      output file\n");
161                 BIO_printf(bio_err," -print_certs  print any certs or crl in the input\n");
162                 BIO_printf(bio_err," -text         print full details of certificates\n");
163                 BIO_printf(bio_err," -noout        don't output encoded data\n");
164                 BIO_printf(bio_err," -engine e     use engine e, possibly a hardware device.\n");
165                 ret = 1;
166                 goto end;
167                 }
168
169         ERR_load_crypto_strings();
170
171         e = setup_engine(bio_err, engine, 0);
172
173         in=BIO_new(BIO_s_file());
174         out=BIO_new(BIO_s_file());
175         if ((in == NULL) || (out == NULL))
176                 {
177                 ERR_print_errors(bio_err);
178                 goto end;
179                 }
180
181         if (infile == NULL)
182                 BIO_set_fp(in,stdin,BIO_NOCLOSE);
183         else
184                 {
185                 if (BIO_read_filename(in,infile) <= 0)
186                 if (in == NULL)
187                         {
188                         perror(infile);
189                         goto end;
190                         }
191                 }
192
193         if      (informat == FORMAT_ASN1)
194                 p7=d2i_PKCS7_bio(in,NULL);
195         else if (informat == FORMAT_PEM)
196                 p7=PEM_read_bio_PKCS7(in,NULL,NULL,NULL);
197         else
198                 {
199                 BIO_printf(bio_err,"bad input format specified for pkcs7 object\n");
200                 goto end;
201                 }
202         if (p7 == NULL)
203                 {
204                 BIO_printf(bio_err,"unable to load PKCS7 object\n");
205                 ERR_print_errors(bio_err);
206                 goto end;
207                 }
208
209         if (outfile == NULL)
210                 {
211                 BIO_set_fp(out,stdout,BIO_NOCLOSE);
212 #ifdef OPENSSL_SYS_VMS
213                 {
214                 BIO *tmpbio = BIO_new(BIO_f_linebuffer());
215                 out = BIO_push(tmpbio, out);
216                 }
217 #endif
218                 }
219         else
220                 {
221                 if (BIO_write_filename(out,outfile) <= 0)
222                         {
223                         perror(outfile);
224                         goto end;
225                         }
226                 }
227
228         if (print_certs)
229                 {
230                 STACK_OF(X509) *certs=NULL;
231                 STACK_OF(X509_CRL) *crls=NULL;
232
233                 i=OBJ_obj2nid(p7->type);
234                 switch (i)
235                         {
236                 case NID_pkcs7_signed:
237                         certs=p7->d.sign->cert;
238                         crls=p7->d.sign->crl;
239                         break;
240                 case NID_pkcs7_signedAndEnveloped:
241                         certs=p7->d.signed_and_enveloped->cert;
242                         crls=p7->d.signed_and_enveloped->crl;
243                         break;
244                 default:
245                         break;
246                         }
247
248                 if (certs != NULL)
249                         {
250                         X509 *x;
251
252                         for (i=0; i<sk_X509_num(certs); i++)
253                                 {
254                                 x=sk_X509_value(certs,i);
255                                 if(text) X509_print(out, x);
256                                 else dump_cert_text(out, x);
257
258                                 if(!noout) PEM_write_bio_X509(out,x);
259                                 BIO_puts(out,"\n");
260                                 }
261                         }
262                 if (crls != NULL)
263                         {
264                         X509_CRL *crl;
265
266                         for (i=0; i<sk_X509_CRL_num(crls); i++)
267                                 {
268                                 crl=sk_X509_CRL_value(crls,i);
269
270                                 X509_CRL_print(out, crl);
271
272                                 if(!noout)PEM_write_bio_X509_CRL(out,crl);
273                                 BIO_puts(out,"\n");
274                                 }
275                         }
276
277                 ret=0;
278                 goto end;
279                 }
280
281         if(!noout) {
282                 if      (outformat == FORMAT_ASN1)
283                         i=i2d_PKCS7_bio(out,p7);
284                 else if (outformat == FORMAT_PEM)
285                         i=PEM_write_bio_PKCS7(out,p7);
286                 else    {
287                         BIO_printf(bio_err,"bad output format specified for outfile\n");
288                         goto end;
289                         }
290
291                 if (!i)
292                         {
293                         BIO_printf(bio_err,"unable to write pkcs7 object\n");
294                         ERR_print_errors(bio_err);
295                         goto end;
296                         }
297         }
298         ret=0;
299 end:
300         if (p7 != NULL) PKCS7_free(p7);
301         if (in != NULL) BIO_free(in);
302         if (out != NULL) BIO_free_all(out);
303         apps_shutdown();
304         EXIT(ret);
305         }