xref: /freebsd/crypto/openssl/apps/pkcs7.c (revision 907b59d76938e654f0d040a888e8dfca3de1e222)
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 /*-
75  * -inform arg  - input format - default PEM (DER or PEM)
76  * -outform arg - output format - default PEM
77  * -in arg      - input file - default stdin
78  * -out arg     - output file - default stdout
79  * -print_certs
80  */
81 
82 int MAIN(int, char **);
83 
84 int MAIN(int argc, char **argv)
85 {
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, p7_print = 0;
92     int ret = 1;
93 #ifndef OPENSSL_NO_ENGINE
94     char *engine = NULL;
95 #endif
96 
97     apps_startup();
98 
99     if (bio_err == NULL)
100         if ((bio_err = BIO_new(BIO_s_file())) != NULL)
101             BIO_set_fp(bio_err, stderr, BIO_NOCLOSE | BIO_FP_TEXT);
102 
103     if (!load_config(bio_err, NULL))
104         goto end;
105 
106     infile = NULL;
107     outfile = NULL;
108     informat = FORMAT_PEM;
109     outformat = FORMAT_PEM;
110 
111     prog = argv[0];
112     argc--;
113     argv++;
114     while (argc >= 1) {
115         if (strcmp(*argv, "-inform") == 0) {
116             if (--argc < 1)
117                 goto bad;
118             informat = str2fmt(*(++argv));
119         } else if (strcmp(*argv, "-outform") == 0) {
120             if (--argc < 1)
121                 goto bad;
122             outformat = str2fmt(*(++argv));
123         } else if (strcmp(*argv, "-in") == 0) {
124             if (--argc < 1)
125                 goto bad;
126             infile = *(++argv);
127         } else if (strcmp(*argv, "-out") == 0) {
128             if (--argc < 1)
129                 goto bad;
130             outfile = *(++argv);
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") == 0)
136             p7_print = 1;
137         else if (strcmp(*argv, "-print_certs") == 0)
138             print_certs = 1;
139 #ifndef OPENSSL_NO_ENGINE
140         else if (strcmp(*argv, "-engine") == 0) {
141             if (--argc < 1)
142                 goto bad;
143             engine = *(++argv);
144         }
145 #endif
146         else {
147             BIO_printf(bio_err, "unknown option %s\n", *argv);
148             badops = 1;
149             break;
150         }
151         argc--;
152         argv++;
153     }
154 
155     if (badops) {
156  bad:
157         BIO_printf(bio_err, "%s [options] <infile >outfile\n", prog);
158         BIO_printf(bio_err, "where options are\n");
159         BIO_printf(bio_err, " -inform arg   input format - DER or PEM\n");
160         BIO_printf(bio_err, " -outform arg  output format - DER or PEM\n");
161         BIO_printf(bio_err, " -in arg       input file\n");
162         BIO_printf(bio_err, " -out arg      output file\n");
163         BIO_printf(bio_err,
164                    " -print_certs  print any certs or crl in the input\n");
165         BIO_printf(bio_err,
166                    " -text         print full details of certificates\n");
167         BIO_printf(bio_err, " -noout        don't output encoded data\n");
168 #ifndef OPENSSL_NO_ENGINE
169         BIO_printf(bio_err,
170                    " -engine e     use engine e, possibly a hardware device.\n");
171 #endif
172         ret = 1;
173         goto end;
174     }
175 
176     ERR_load_crypto_strings();
177 
178 #ifndef OPENSSL_NO_ENGINE
179     setup_engine(bio_err, engine, 0);
180 #endif
181 
182     in = BIO_new(BIO_s_file());
183     out = BIO_new(BIO_s_file());
184     if ((in == NULL) || (out == NULL)) {
185         ERR_print_errors(bio_err);
186         goto end;
187     }
188 
189     if (infile == NULL)
190         BIO_set_fp(in, stdin, BIO_NOCLOSE);
191     else {
192         if (BIO_read_filename(in, infile) <= 0) {
193             BIO_printf(bio_err, "unable to load input file\n");
194             ERR_print_errors(bio_err);
195             goto end;
196         }
197     }
198 
199     if (informat == FORMAT_ASN1)
200         p7 = d2i_PKCS7_bio(in, NULL);
201     else if (informat == FORMAT_PEM)
202         p7 = PEM_read_bio_PKCS7(in, NULL, NULL, NULL);
203     else {
204         BIO_printf(bio_err, "bad input format specified for pkcs7 object\n");
205         goto end;
206     }
207     if (p7 == NULL) {
208         BIO_printf(bio_err, "unable to load PKCS7 object\n");
209         ERR_print_errors(bio_err);
210         goto end;
211     }
212 
213     if (outfile == NULL) {
214         BIO_set_fp(out, stdout, BIO_NOCLOSE);
215 #ifdef OPENSSL_SYS_VMS
216         {
217             BIO *tmpbio = BIO_new(BIO_f_linebuffer());
218             out = BIO_push(tmpbio, out);
219         }
220 #endif
221     } else {
222         if (BIO_write_filename(out, outfile) <= 0) {
223             perror(outfile);
224             goto end;
225         }
226     }
227 
228     if (p7_print)
229         PKCS7_print_ctx(out, p7, 0, NULL);
230 
231     if (print_certs) {
232         STACK_OF(X509) *certs = NULL;
233         STACK_OF(X509_CRL) *crls = NULL;
234 
235         i = OBJ_obj2nid(p7->type);
236         switch (i) {
237         case NID_pkcs7_signed:
238             if (p7->d.sign != NULL) {
239                 certs = p7->d.sign->cert;
240                 crls = p7->d.sign->crl;
241             }
242             break;
243         case NID_pkcs7_signedAndEnveloped:
244             if (p7->d.signed_and_enveloped != NULL) {
245                 certs = p7->d.signed_and_enveloped->cert;
246                 crls = p7->d.signed_and_enveloped->crl;
247             }
248             break;
249         default:
250             break;
251         }
252 
253         if (certs != NULL) {
254             X509 *x;
255 
256             for (i = 0; i < sk_X509_num(certs); i++) {
257                 x = sk_X509_value(certs, i);
258                 if (text)
259                     X509_print(out, x);
260                 else
261                     dump_cert_text(out, x);
262 
263                 if (!noout)
264                     PEM_write_bio_X509(out, x);
265                 BIO_puts(out, "\n");
266             }
267         }
268         if (crls != NULL) {
269             X509_CRL *crl;
270 
271             for (i = 0; i < sk_X509_CRL_num(crls); i++) {
272                 crl = sk_X509_CRL_value(crls, i);
273 
274                 X509_CRL_print(out, crl);
275 
276                 if (!noout)
277                     PEM_write_bio_X509_CRL(out, crl);
278                 BIO_puts(out, "\n");
279             }
280         }
281 
282         ret = 0;
283         goto end;
284     }
285 
286     if (!noout) {
287         if (outformat == FORMAT_ASN1)
288             i = i2d_PKCS7_bio(out, p7);
289         else if (outformat == FORMAT_PEM)
290             i = PEM_write_bio_PKCS7(out, p7);
291         else {
292             BIO_printf(bio_err, "bad output format specified for outfile\n");
293             goto end;
294         }
295 
296         if (!i) {
297             BIO_printf(bio_err, "unable to write pkcs7 object\n");
298             ERR_print_errors(bio_err);
299             goto end;
300         }
301     }
302     ret = 0;
303  end:
304     if (p7 != NULL)
305         PKCS7_free(p7);
306     if (in != NULL)
307         BIO_free(in);
308     if (out != NULL)
309         BIO_free_all(out);
310     apps_shutdown();
311     OPENSSL_EXIT(ret);
312 }
313