1 /* $OpenBSD: pkeyparam.c,v 1.14 2022/01/14 10:17:30 tb Exp $ */
2 /* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL
3 * project 2006
4 */
5 /* ====================================================================
6 * Copyright (c) 2006 The OpenSSL Project. All rights reserved.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 *
12 * 1. Redistributions of source code must retain the above copyright
13 * notice, this list of conditions and the following disclaimer.
14 *
15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in
17 * the documentation and/or other materials provided with the
18 * distribution.
19 *
20 * 3. All advertising materials mentioning features or use of this
21 * software must display the following acknowledgment:
22 * "This product includes software developed by the OpenSSL Project
23 * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
24 *
25 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
26 * endorse or promote products derived from this software without
27 * prior written permission. For written permission, please contact
28 * licensing@OpenSSL.org.
29 *
30 * 5. Products derived from this software may not be called "OpenSSL"
31 * nor may "OpenSSL" appear in their names without prior written
32 * permission of the OpenSSL Project.
33 *
34 * 6. Redistributions of any form whatsoever must retain the following
35 * acknowledgment:
36 * "This product includes software developed by the OpenSSL Project
37 * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
38 *
39 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
40 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
41 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
42 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
43 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
44 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
45 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
46 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
47 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
48 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
49 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
50 * OF THE POSSIBILITY OF SUCH DAMAGE.
51 * ====================================================================
52 *
53 * This product includes cryptographic software written by Eric Young
54 * (eay@cryptsoft.com). This product includes software written by Tim
55 * Hudson (tjh@cryptsoft.com).
56 *
57 */
58
59 #include <stdio.h>
60 #include <string.h>
61
62 #include "apps.h"
63
64 #include <openssl/err.h>
65 #include <openssl/evp.h>
66 #include <openssl/pem.h>
67
68 struct {
69 int check;
70 char *infile;
71 int noout;
72 char *outfile;
73 int text;
74 } pkeyparam_config;
75
76 static const struct option pkeyparam_options[] = {
77 {
78 .name = "check",
79 .desc = "Check validity of key parameters",
80 .type = OPTION_FLAG,
81 .opt.flag = &pkeyparam_config.check,
82 },
83 {
84 .name = "in",
85 .argname = "file",
86 .desc = "Input file (default stdin)",
87 .type = OPTION_ARG,
88 .opt.arg = &pkeyparam_config.infile,
89 },
90 {
91 .name = "noout",
92 .desc = "Do not print encoded version of the parameters",
93 .type = OPTION_FLAG,
94 .opt.flag = &pkeyparam_config.noout,
95 },
96 {
97 .name = "out",
98 .argname = "file",
99 .desc = "Output file (default stdout)",
100 .type = OPTION_ARG,
101 .opt.arg = &pkeyparam_config.outfile,
102 },
103 {
104 .name = "text",
105 .desc = "Print out the parameters in plain text",
106 .type = OPTION_FLAG,
107 .opt.flag = &pkeyparam_config.text,
108 },
109 { NULL },
110 };
111
112 static void
pkeyparam_usage()113 pkeyparam_usage()
114 {
115 fprintf(stderr,
116 "usage: pkeyparam [-check] [-in file] [-noout] [-out file] "
117 "[-text]\n");
118 options_usage(pkeyparam_options);
119 }
120
121 int
pkeyparam_main(int argc,char ** argv)122 pkeyparam_main(int argc, char **argv)
123 {
124 BIO *in = NULL, *out = NULL;
125 EVP_PKEY *pkey = NULL;
126 int ret = 1;
127
128 if (single_execution) {
129 if (pledge("stdio cpath wpath rpath", NULL) == -1) {
130 perror("pledge");
131 exit(1);
132 }
133 }
134
135 memset(&pkeyparam_config, 0, sizeof(pkeyparam_config));
136
137 if (options_parse(argc, argv, pkeyparam_options, NULL, NULL) != 0) {
138 pkeyparam_usage();
139 return (1);
140 }
141
142 if (pkeyparam_config.infile) {
143 if (!(in = BIO_new_file(pkeyparam_config.infile, "r"))) {
144 BIO_printf(bio_err, "Can't open input file %s\n",
145 pkeyparam_config.infile);
146 goto end;
147 }
148 } else
149 in = BIO_new_fp(stdin, BIO_NOCLOSE);
150
151 if (pkeyparam_config.outfile) {
152 if (!(out = BIO_new_file(pkeyparam_config.outfile, "w"))) {
153 BIO_printf(bio_err, "Can't open output file %s\n",
154 pkeyparam_config.outfile);
155 goto end;
156 }
157 } else {
158 out = BIO_new_fp(stdout, BIO_NOCLOSE);
159 }
160
161 pkey = PEM_read_bio_Parameters(in, NULL);
162 if (!pkey) {
163 BIO_printf(bio_err, "Error reading parameters\n");
164 ERR_print_errors(bio_err);
165 goto end;
166 }
167
168 if (pkeyparam_config.check) {
169 if (!pkey_check(out, pkey, EVP_PKEY_param_check, "Parameters"))
170 goto end;
171 }
172
173 if (!pkeyparam_config.noout)
174 PEM_write_bio_Parameters(out, pkey);
175
176 if (pkeyparam_config.text)
177 EVP_PKEY_print_params(out, pkey, 0, NULL);
178
179 ret = 0;
180
181 end:
182 EVP_PKEY_free(pkey);
183 BIO_free_all(out);
184 BIO_free(in);
185
186 return ret;
187 }
188