pkeyparam.c revision 1.15 
1/* $OpenBSD: pkeyparam.c,v 1.15 2022/11/11 17:07:39 joshua 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
68struct {
69	int check;
70	char *infile;
71	int noout;
72	char *outfile;
73	int text;
74} pkeyparam_config;
75
76static 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
112static void
113pkeyparam_usage()
114{
115	fprintf(stderr,
116	    "usage: pkeyparam [-check] [-in file] [-noout] [-out file] "
117	    "[-text]\n");
118	options_usage(pkeyparam_options);
119}
120
121int
122pkeyparam_main(int argc, char **argv)
123{
124	BIO *in = NULL, *out = NULL;
125	EVP_PKEY *pkey = NULL;
126	int ret = 1;
127
128	if (pledge("stdio cpath wpath rpath", NULL) == -1) {
129		perror("pledge");
130		exit(1);
131	}
132
133	memset(&pkeyparam_config, 0, sizeof(pkeyparam_config));
134
135	if (options_parse(argc, argv, pkeyparam_options, NULL, NULL) != 0) {
136		pkeyparam_usage();
137		return (1);
138	}
139
140	if (pkeyparam_config.infile) {
141		if (!(in = BIO_new_file(pkeyparam_config.infile, "r"))) {
142			BIO_printf(bio_err, "Can't open input file %s\n",
143			    pkeyparam_config.infile);
144			goto end;
145		}
146	} else
147		in = BIO_new_fp(stdin, BIO_NOCLOSE);
148
149	if (pkeyparam_config.outfile) {
150		if (!(out = BIO_new_file(pkeyparam_config.outfile, "w"))) {
151			BIO_printf(bio_err, "Can't open output file %s\n",
152			    pkeyparam_config.outfile);
153			goto end;
154		}
155	} else {
156		out = BIO_new_fp(stdout, BIO_NOCLOSE);
157	}
158
159	pkey = PEM_read_bio_Parameters(in, NULL);
160	if (!pkey) {
161		BIO_printf(bio_err, "Error reading parameters\n");
162		ERR_print_errors(bio_err);
163		goto end;
164	}
165
166	if (pkeyparam_config.check) {
167		if (!pkey_check(out, pkey, EVP_PKEY_param_check, "Parameters"))
168			goto end;
169	}
170
171	if (!pkeyparam_config.noout)
172		PEM_write_bio_Parameters(out, pkey);
173
174	if (pkeyparam_config.text)
175		EVP_PKEY_print_params(out, pkey, 0, NULL);
176
177	ret = 0;
178
179 end:
180	EVP_PKEY_free(pkey);
181	BIO_free_all(out);
182	BIO_free(in);
183
184	return ret;
185}
186