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diff --git a/src/usr.bin/openssl/crl2p7.c b/src/usr.bin/openssl/crl2p7.c
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1/* $OpenBSD: crl2p7.c,v 1.12 2024/12/26 14:07:58 tb 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/* This was written by Gordon Chaffee <chaffee@plateau.cs.berkeley.edu>
60 * and donated 'to the cause' along with lots and lots of other fixes to
61 * the library. */
62
63#include <sys/types.h>
64
65#include <stdio.h>
66#include <string.h>
67
68#include "apps.h"
69
70#include <openssl/err.h>
71#include <openssl/evp.h>
72#include <openssl/objects.h>
73#include <openssl/pem.h>
74#include <openssl/pkcs7.h>
75#include <openssl/x509.h>
76
77static int add_certs_from_file(STACK_OF(X509) * stack, char *certfile);
78
79static struct {
80 STACK_OF(OPENSSL_STRING) *certflst;
81 char *infile;
82 int informat;
83 int nocrl;
84 char *outfile;
85 int outformat;
86} cfg;
87
88static int
89crl2p7_opt_certfile(char *arg)
90{
91 if (cfg.certflst == NULL)
92 cfg.certflst = sk_OPENSSL_STRING_new_null();
93 if (cfg.certflst == NULL) {
94 fprintf(stderr, "out of memory\n");
95 return (1);
96 }
97 if (!sk_OPENSSL_STRING_push(cfg.certflst, arg)) {
98 fprintf(stderr, "out of memory\n");
99 return (1);
100 }
101
102 return (0);
103}
104
105static const struct option crl2p7_options[] = {
106 {
107 .name = "certfile",
108 .argname = "file",
109 .desc = "Chain of PEM certificates to a trusted CA",
110 .type = OPTION_ARG_FUNC,
111 .opt.argfunc = crl2p7_opt_certfile,
112 },
113 {
114 .name = "in",
115 .argname = "file",
116 .desc = "Input file (default stdin)",
117 .type = OPTION_ARG,
118 .opt.arg = &cfg.infile,
119 },
120 {
121 .name = "inform",
122 .argname = "format",
123 .desc = "Input format (DER or PEM (default))",
124 .type = OPTION_ARG_FORMAT,
125 .opt.value = &cfg.informat,
126 },
127 {
128 .name = "nocrl",
129 .desc = "Do not read CRL from input or include CRL in output",
130 .type = OPTION_FLAG,
131 .opt.flag = &cfg.nocrl,
132 },
133 {
134 .name = "out",
135 .argname = "file",
136 .desc = "Output file (default stdout)",
137 .type = OPTION_ARG,
138 .opt.arg = &cfg.outfile,
139 },
140 {
141 .name = "outform",
142 .argname = "format",
143 .desc = "Output format (DER or PEM (default))",
144 .type = OPTION_ARG_FORMAT,
145 .opt.value = &cfg.outformat,
146 },
147 { NULL },
148};
149
150static void
151crl2p7_usage(void)
152{
153 fprintf(stderr,
154 "usage: crl2p7 [-certfile file] [-in file] [-inform DER | PEM]\n"
155 " [-nocrl] [-out file] [-outform DER | PEM]\n\n");
156 options_usage(crl2p7_options);
157}
158
159int
160crl2pkcs7_main(int argc, char **argv)
161{
162 int i;
163 BIO *in = NULL, *out = NULL;
164 char *certfile;
165 PKCS7 *p7 = NULL;
166 PKCS7_SIGNED *p7s = NULL;
167 X509_CRL *crl = NULL;
168 STACK_OF(X509_CRL) *crl_stack = NULL;
169 STACK_OF(X509) *cert_stack = NULL;
170 int ret = 1;
171
172 if (pledge("stdio cpath wpath rpath", NULL) == -1) {
173 perror("pledge");
174 exit(1);
175 }
176
177 memset(&cfg, 0, sizeof(cfg));
178
179 cfg.informat = FORMAT_PEM;
180 cfg.outformat = FORMAT_PEM;
181
182 if (options_parse(argc, argv, crl2p7_options, NULL, NULL) != 0) {
183 crl2p7_usage();
184 goto end;
185 }
186
187 in = BIO_new(BIO_s_file());
188 out = BIO_new(BIO_s_file());
189 if (in == NULL || out == NULL) {
190 ERR_print_errors(bio_err);
191 goto end;
192 }
193 if (!cfg.nocrl) {
194 if (cfg.infile == NULL)
195 BIO_set_fp(in, stdin, BIO_NOCLOSE);
196 else {
197 if (BIO_read_filename(in, cfg.infile) <= 0) {
198 perror(cfg.infile);
199 goto end;
200 }
201 }
202
203 if (cfg.informat == FORMAT_ASN1)
204 crl = d2i_X509_CRL_bio(in, NULL);
205 else if (cfg.informat == FORMAT_PEM)
206 crl = PEM_read_bio_X509_CRL(in, NULL, NULL, NULL);
207 else {
208 BIO_printf(bio_err,
209 "bad input format specified for input crl\n");
210 goto end;
211 }
212 if (crl == NULL) {
213 BIO_printf(bio_err, "unable to load CRL\n");
214 ERR_print_errors(bio_err);
215 goto end;
216 }
217 }
218 if ((p7 = PKCS7_new()) == NULL)
219 goto end;
220 if ((p7s = PKCS7_SIGNED_new()) == NULL)
221 goto end;
222 p7->type = OBJ_nid2obj(NID_pkcs7_signed);
223 p7->d.sign = p7s;
224 p7s->contents->type = OBJ_nid2obj(NID_pkcs7_data);
225
226 if (!ASN1_INTEGER_set(p7s->version, 1))
227 goto end;
228 if ((crl_stack = sk_X509_CRL_new_null()) == NULL)
229 goto end;
230 p7s->crl = crl_stack;
231 if (crl != NULL) {
232 if (!sk_X509_CRL_push(crl_stack, crl))
233 goto end;
234 crl = NULL;
235 }
236 if ((cert_stack = sk_X509_new_null()) == NULL)
237 goto end;
238 p7s->cert = cert_stack;
239
240 if (cfg.certflst) {
241 for (i = 0; i < sk_OPENSSL_STRING_num(cfg.certflst); i++) {
242 certfile = sk_OPENSSL_STRING_value(cfg.certflst, i);
243 if (add_certs_from_file(cert_stack, certfile) < 0) {
244 BIO_printf(bio_err,
245 "error loading certificates\n");
246 ERR_print_errors(bio_err);
247 goto end;
248 }
249 }
250 }
251
252 if (cfg.outfile == NULL) {
253 BIO_set_fp(out, stdout, BIO_NOCLOSE);
254 } else {
255 if (BIO_write_filename(out, cfg.outfile) <= 0) {
256 perror(cfg.outfile);
257 goto end;
258 }
259 }
260
261 if (cfg.outformat == FORMAT_ASN1)
262 i = i2d_PKCS7_bio(out, p7);
263 else if (cfg.outformat == FORMAT_PEM)
264 i = PEM_write_bio_PKCS7(out, p7);
265 else {
266 BIO_printf(bio_err,
267 "bad output format specified for outfile\n");
268 goto end;
269 }
270 if (!i) {
271 BIO_printf(bio_err, "unable to write pkcs7 object\n");
272 ERR_print_errors(bio_err);
273 goto end;
274 }
275
276 ret = 0;
277
278 end:
279 BIO_free(in);
280 BIO_free_all(out);
281 PKCS7_free(p7);
282 X509_CRL_free(crl);
283 sk_OPENSSL_STRING_free(cfg.certflst);
284
285 return ret;
286}
287
288static int
289add_certs_from_file(STACK_OF(X509) *stack, char *certfile)
290{
291 BIO *in = NULL;
292 int count = 0;
293 int ret = -1;
294 STACK_OF(X509_INFO) *sk = NULL;
295 X509_INFO *xi = NULL;
296
297 in = BIO_new(BIO_s_file());
298 if (in == NULL || BIO_read_filename(in, certfile) <= 0) {
299 BIO_printf(bio_err, "error opening the file, %s\n", certfile);
300 goto end;
301 }
302 /* This loads from a file, a stack of x509/crl/pkey sets */
303 sk = PEM_X509_INFO_read_bio(in, NULL, NULL, NULL);
304 if (sk == NULL) {
305 BIO_printf(bio_err, "error reading the file, %s\n", certfile);
306 goto end;
307 }
308 /* scan over it and pull out the CRL's */
309 while (sk_X509_INFO_num(sk) > 0) {
310 xi = sk_X509_INFO_shift(sk);
311 if (xi->x509 != NULL) {
312 if (!sk_X509_push(stack, xi->x509))
313 goto end;
314 xi->x509 = NULL;
315 count++;
316 }
317 X509_INFO_free(xi);
318 xi = NULL;
319 }
320
321 ret = count;
322
323 end:
324 BIO_free(in);
325 X509_INFO_free(xi);
326 sk_X509_INFO_free(sk);
327
328 return ret;
329}
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