1 /* $OpenBSD: pkcs7.c,v 1.11 2019/07/14 03:30:46 guenther Exp $ */
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
64 #include "apps.h"
65
66 #include <openssl/err.h>
67 #include <openssl/evp.h>
68 #include <openssl/objects.h>
69 #include <openssl/pem.h>
70 #include <openssl/pkcs7.h>
71 #include <openssl/x509.h>
72
73 static struct {
74 char *infile;
75 int informat;
76 int noout;
77 char *outfile;
78 int outformat;
79 int p7_print;
80 int print_certs;
81 int text;
82 } pkcs7_config;
83
84 static const struct option pkcs7_options[] = {
85 {
86 .name = "in",
87 .argname = "file",
88 .desc = "Input file (default stdin)",
89 .type = OPTION_ARG,
90 .opt.arg = &pkcs7_config.infile,
91 },
92 {
93 .name = "inform",
94 .argname = "format",
95 .desc = "Input format (DER or PEM (default))",
96 .type = OPTION_ARG_FORMAT,
97 .opt.value = &pkcs7_config.informat,
98 },
99 {
100 .name = "noout",
101 .desc = "Do not output encoded version of PKCS#7 structure",
102 .type = OPTION_FLAG,
103 .opt.flag = &pkcs7_config.noout,
104 },
105 {
106 .name = "out",
107 .argname = "file",
108 .desc = "Output file (default stdout)",
109 .type = OPTION_ARG,
110 .opt.arg = &pkcs7_config.outfile,
111 },
112 {
113 .name = "outform",
114 .argname = "format",
115 .desc = "Output format (DER or PEM (default))",
116 .type = OPTION_ARG_FORMAT,
117 .opt.value = &pkcs7_config.outformat,
118 },
119 {
120 .name = "print",
121 .desc = "Output ASN.1 representation of PKCS#7 structure",
122 .type = OPTION_FLAG,
123 .opt.flag = &pkcs7_config.p7_print,
124 },
125 {
126 .name = "print_certs",
127 .desc = "Print out any certificates or CRLs contained in file",
128 .type = OPTION_FLAG,
129 .opt.flag = &pkcs7_config.print_certs,
130 },
131 {
132 .name = "text",
133 .desc = "Print out full certificate details",
134 .type = OPTION_FLAG,
135 .opt.flag = &pkcs7_config.text,
136 },
137 { NULL },
138 };
139
140 static void
pkcs7_usage()141 pkcs7_usage()
142 {
143 fprintf(stderr, "usage: pkcs7 [-in file] "
144 "[-inform DER | PEM] [-noout]\n"
145 " [-out file] [-outform DER | PEM] [-print_certs] [-text]\n\n");
146 options_usage(pkcs7_options);
147 }
148
149 int
pkcs7_main(int argc,char ** argv)150 pkcs7_main(int argc, char **argv)
151 {
152 PKCS7 *p7 = NULL;
153 BIO *in = NULL, *out = NULL;
154 int ret = 1;
155 int i;
156
157 if (single_execution) {
158 if (pledge("stdio cpath wpath rpath", NULL) == -1) {
159 perror("pledge");
160 exit(1);
161 }
162 }
163
164 memset(&pkcs7_config, 0, sizeof(pkcs7_config));
165
166 pkcs7_config.informat = FORMAT_PEM;
167 pkcs7_config.outformat = FORMAT_PEM;
168
169 if (options_parse(argc, argv, pkcs7_options, NULL, NULL) != 0) {
170 pkcs7_usage();
171 goto end;
172 }
173
174 in = BIO_new(BIO_s_file());
175 out = BIO_new(BIO_s_file());
176 if ((in == NULL) || (out == NULL)) {
177 ERR_print_errors(bio_err);
178 goto end;
179 }
180 if (pkcs7_config.infile == NULL)
181 BIO_set_fp(in, stdin, BIO_NOCLOSE);
182 else {
183 if (BIO_read_filename(in, pkcs7_config.infile) <= 0) {
184 perror(pkcs7_config.infile);
185 goto end;
186 }
187 }
188
189 if (pkcs7_config.informat == FORMAT_ASN1)
190 p7 = d2i_PKCS7_bio(in, NULL);
191 else if (pkcs7_config.informat == FORMAT_PEM)
192 p7 = PEM_read_bio_PKCS7(in, NULL, NULL, NULL);
193 else {
194 BIO_printf(bio_err, "bad input format specified for pkcs7 object\n");
195 goto end;
196 }
197 if (p7 == NULL) {
198 BIO_printf(bio_err, "unable to load PKCS7 object\n");
199 ERR_print_errors(bio_err);
200 goto end;
201 }
202 if (pkcs7_config.outfile == NULL) {
203 BIO_set_fp(out, stdout, BIO_NOCLOSE);
204 } else {
205 if (BIO_write_filename(out, pkcs7_config.outfile) <= 0) {
206 perror(pkcs7_config.outfile);
207 goto end;
208 }
209 }
210
211 if (pkcs7_config.p7_print)
212 PKCS7_print_ctx(out, p7, 0, NULL);
213
214 if (pkcs7_config.print_certs) {
215 STACK_OF(X509) * certs = NULL;
216 STACK_OF(X509_CRL) * crls = NULL;
217
218 i = OBJ_obj2nid(p7->type);
219 switch (i) {
220 case NID_pkcs7_signed:
221 certs = p7->d.sign->cert;
222 crls = p7->d.sign->crl;
223 break;
224 case NID_pkcs7_signedAndEnveloped:
225 certs = p7->d.signed_and_enveloped->cert;
226 crls = p7->d.signed_and_enveloped->crl;
227 break;
228 default:
229 break;
230 }
231
232 if (certs != NULL) {
233 X509 *x;
234
235 for (i = 0; i < sk_X509_num(certs); i++) {
236 x = sk_X509_value(certs, i);
237 if (pkcs7_config.text)
238 X509_print(out, x);
239 else
240 dump_cert_text(out, x);
241
242 if (!pkcs7_config.noout)
243 PEM_write_bio_X509(out, x);
244 BIO_puts(out, "\n");
245 }
246 }
247 if (crls != NULL) {
248 X509_CRL *crl;
249
250 for (i = 0; i < sk_X509_CRL_num(crls); i++) {
251 crl = sk_X509_CRL_value(crls, i);
252
253 X509_CRL_print(out, crl);
254
255 if (!pkcs7_config.noout)
256 PEM_write_bio_X509_CRL(out, crl);
257 BIO_puts(out, "\n");
258 }
259 }
260 ret = 0;
261 goto end;
262 }
263 if (!pkcs7_config.noout) {
264 if (pkcs7_config.outformat == FORMAT_ASN1)
265 i = i2d_PKCS7_bio(out, p7);
266 else if (pkcs7_config.outformat == FORMAT_PEM)
267 i = PEM_write_bio_PKCS7(out, p7);
268 else {
269 BIO_printf(bio_err, "bad output format specified for outfile\n");
270 goto end;
271 }
272
273 if (!i) {
274 BIO_printf(bio_err, "unable to write pkcs7 object\n");
275 ERR_print_errors(bio_err);
276 goto end;
277 }
278 }
279 ret = 0;
280 end:
281 if (p7 != NULL)
282 PKCS7_free(p7);
283 if (in != NULL)
284 BIO_free(in);
285 if (out != NULL)
286 BIO_free_all(out);
287
288 return (ret);
289 }
290