minor signed/unsigned warning fixes
[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 #ifndef OPENSSL_NO_ENGINE
86         ENGINE *e = NULL;
87 #endif
88         PKCS7 *p7=NULL;
89         int i,badops=0;
90         BIO *in=NULL,*out=NULL;
91         int informat,outformat;
92         char *infile,*outfile,*prog;
93         int print_certs=0,text=0,noout=0;
94         int ret=1;
95 #ifndef OPENSSL_NO_ENGINE
96         char *engine=NULL;
97 #endif
98
99         apps_startup();
100
101         if (bio_err == NULL)
102                 if ((bio_err=BIO_new(BIO_s_file())) != NULL)
103                         BIO_set_fp(bio_err,stderr,BIO_NOCLOSE|BIO_FP_TEXT);
104
105         infile=NULL;
106         outfile=NULL;
107         informat=FORMAT_PEM;
108         outformat=FORMAT_PEM;
109
110         prog=argv[0];
111         argc--;
112         argv++;
113         while (argc >= 1)
114                 {
115                 if      (strcmp(*argv,"-inform") == 0)
116                         {
117                         if (--argc < 1) goto bad;
118                         informat=str2fmt(*(++argv));
119                         }
120                 else if (strcmp(*argv,"-outform") == 0)
121                         {
122                         if (--argc < 1) goto bad;
123                         outformat=str2fmt(*(++argv));
124                         }
125                 else if (strcmp(*argv,"-in") == 0)
126                         {
127                         if (--argc < 1) goto bad;
128                         infile= *(++argv);
129                         }
130                 else if (strcmp(*argv,"-out") == 0)
131                         {
132                         if (--argc < 1) goto bad;
133                         outfile= *(++argv);
134                         }
135                 else if (strcmp(*argv,"-noout") == 0)
136                         noout=1;
137                 else if (strcmp(*argv,"-text") == 0)
138                         text=1;
139                 else if (strcmp(*argv,"-print_certs") == 0)
140                         print_certs=1;
141 #ifndef OPENSSL_NO_ENGINE
142                 else if (strcmp(*argv,"-engine") == 0)
143                         {
144                         if (--argc < 1) goto bad;
145                         engine= *(++argv);
146                         }
147 #endif
148                 else
149                         {
150                         BIO_printf(bio_err,"unknown option %s\n",*argv);
151                         badops=1;
152                         break;
153                         }
154                 argc--;
155                 argv++;
156                 }
157
158         if (badops)
159                 {
160 bad:
161                 BIO_printf(bio_err,"%s [options] <infile >outfile\n",prog);
162                 BIO_printf(bio_err,"where options are\n");
163                 BIO_printf(bio_err," -inform arg   input format - DER or PEM\n");
164                 BIO_printf(bio_err," -outform arg  output format - DER or PEM\n");
165                 BIO_printf(bio_err," -in arg       input file\n");
166                 BIO_printf(bio_err," -out arg      output file\n");
167                 BIO_printf(bio_err," -print_certs  print any certs or crl in the input\n");
168                 BIO_printf(bio_err," -text         print full details of certificates\n");
169                 BIO_printf(bio_err," -noout        don't output encoded data\n");
170 #ifndef OPENSSL_NO_ENGINE
171                 BIO_printf(bio_err," -engine e     use engine e, possibly a hardware device.\n");
172 #endif
173                 ret = 1;
174                 goto end;
175                 }
176
177         ERR_load_crypto_strings();
178
179 #ifndef OPENSSL_NO_ENGINE
180         e = setup_engine(bio_err, engine, 0);
181 #endif
182
183         in=BIO_new(BIO_s_file());
184         out=BIO_new(BIO_s_file());
185         if ((in == NULL) || (out == NULL))
186                 {
187                 ERR_print_errors(bio_err);
188                 goto end;
189                 }
190
191         if (infile == NULL)
192                 BIO_set_fp(in,stdin,BIO_NOCLOSE);
193         else
194                 {
195                 if (BIO_read_filename(in,infile) <= 0)
196                 if (in == NULL)
197                         {
198                         perror(infile);
199                         goto end;
200                         }
201                 }
202
203         if      (informat == FORMAT_ASN1)
204                 p7=d2i_PKCS7_bio(in,NULL);
205         else if (informat == FORMAT_PEM)
206                 p7=PEM_read_bio_PKCS7(in,NULL,NULL,NULL);
207         else
208                 {
209                 BIO_printf(bio_err,"bad input format specified for pkcs7 object\n");
210                 goto end;
211                 }
212         if (p7 == NULL)
213                 {
214                 BIO_printf(bio_err,"unable to load PKCS7 object\n");
215                 ERR_print_errors(bio_err);
216                 goto end;
217                 }
218
219         if (outfile == NULL)
220                 {
221                 BIO_set_fp(out,stdout,BIO_NOCLOSE);
222 #ifdef OPENSSL_SYS_VMS
223                 {
224                 BIO *tmpbio = BIO_new(BIO_f_linebuffer());
225                 out = BIO_push(tmpbio, out);
226                 }
227 #endif
228                 }
229         else
230                 {
231                 if (BIO_write_filename(out,outfile) <= 0)
232                         {
233                         perror(outfile);
234                         goto end;
235                         }
236                 }
237
238         if (print_certs)
239                 {
240                 STACK_OF(X509) *certs=NULL;
241                 STACK_OF(X509_CRL) *crls=NULL;
242
243                 i=OBJ_obj2nid(p7->type);
244                 switch (i)
245                         {
246                 case NID_pkcs7_signed:
247                         certs=p7->d.sign->cert;
248                         crls=p7->d.sign->crl;
249                         break;
250                 case NID_pkcs7_signedAndEnveloped:
251                         certs=p7->d.signed_and_enveloped->cert;
252                         crls=p7->d.signed_and_enveloped->crl;
253                         break;
254                 default:
255                         break;
256                         }
257
258                 if (certs != NULL)
259                         {
260                         X509 *x;
261
262                         for (i=0; i<sk_X509_num(certs); i++)
263                                 {
264                                 x=sk_X509_value(certs,i);
265                                 if(text) X509_print(out, x);
266                                 else dump_cert_text(out, x);
267
268                                 if(!noout) PEM_write_bio_X509(out,x);
269                                 BIO_puts(out,"\n");
270                                 }
271                         }
272                 if (crls != NULL)
273                         {
274                         X509_CRL *crl;
275
276                         for (i=0; i<sk_X509_CRL_num(crls); i++)
277                                 {
278                                 crl=sk_X509_CRL_value(crls,i);
279
280                                 X509_CRL_print(out, crl);
281
282                                 if(!noout)PEM_write_bio_X509_CRL(out,crl);
283                                 BIO_puts(out,"\n");
284                                 }
285                         }
286
287                 ret=0;
288                 goto end;
289                 }
290
291         if(!noout) {
292                 if      (outformat == FORMAT_ASN1)
293                         i=i2d_PKCS7_bio(out,p7);
294                 else if (outformat == FORMAT_PEM)
295                         i=PEM_write_bio_PKCS7(out,p7);
296                 else    {
297                         BIO_printf(bio_err,"bad output format specified for outfile\n");
298                         goto end;
299                         }
300
301                 if (!i)
302                         {
303                         BIO_printf(bio_err,"unable to write pkcs7 object\n");
304                         ERR_print_errors(bio_err);
305                         goto end;
306                         }
307         }
308         ret=0;
309 end:
310         if (p7 != NULL) PKCS7_free(p7);
311         if (in != NULL) BIO_free(in);
312         if (out != NULL) BIO_free_all(out);
313         apps_shutdown();
314         OPENSSL_EXIT(ret);
315         }