1/* apps/pkeyparam.c */
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#include <stdio.h>
59#include <string.h>
60#include "apps.h"
61#include <openssl/pem.h>
62#include <openssl/err.h>
63#include <openssl/evp.h>
64
65#define PROG pkeyparam_main
66
67int MAIN(int, char **);
68
69int MAIN(int argc, char **argv)
70	{
71	char **args, *infile = NULL, *outfile = NULL;
72	BIO *in = NULL, *out = NULL;
73	int text = 0, noout = 0;
74	EVP_PKEY *pkey=NULL;
75	int badarg = 0;
76#ifndef OPENSSL_NO_ENGINE
77	char *engine=NULL;
78#endif
79	int ret = 1;
80
81	if (bio_err == NULL)
82		bio_err = BIO_new_fp (stderr, BIO_NOCLOSE);
83
84	if (!load_config(bio_err, NULL))
85		goto end;
86
87	ERR_load_crypto_strings();
88	OpenSSL_add_all_algorithms();
89	args = argv + 1;
90	while (!badarg && *args && *args[0] == '-')
91		{
92		if (!strcmp (*args, "-in"))
93			{
94			if (args[1])
95				{
96				args++;
97				infile = *args;
98				}
99			else badarg = 1;
100			}
101		else if (!strcmp (*args, "-out"))
102			{
103			if (args[1])
104				{
105				args++;
106				outfile = *args;
107				}
108			else badarg = 1;
109			}
110#ifndef OPENSSL_NO_ENGINE
111		else if (strcmp(*args,"-engine") == 0)
112			{
113			if (!args[1]) goto bad;
114			engine= *(++args);
115			}
116#endif
117
118		else if (strcmp(*args,"-text") == 0)
119			text=1;
120		else if (strcmp(*args,"-noout") == 0)
121			noout=1;
122		args++;
123		}
124
125	if (badarg)
126		{
127#ifndef OPENSSL_NO_ENGINE
128		bad:
129#endif
130		BIO_printf(bio_err, "Usage pkeyparam [options]\n");
131		BIO_printf(bio_err, "where options are\n");
132		BIO_printf(bio_err, "-in file        input file\n");
133		BIO_printf(bio_err, "-out file       output file\n");
134		BIO_printf(bio_err, "-text           print parameters as text\n");
135		BIO_printf(bio_err, "-noout          don't output encoded parameters\n");
136#ifndef OPENSSL_NO_ENGINE
137		BIO_printf(bio_err, "-engine e       use engine e, possibly a hardware device.\n");
138#endif
139		return 1;
140		}
141
142#ifndef OPENSSL_NO_ENGINE
143        setup_engine(bio_err, engine, 0);
144#endif
145
146	if (infile)
147		{
148		if (!(in = BIO_new_file (infile, "r")))
149			{
150			BIO_printf(bio_err,
151				 "Can't open input file %s\n", infile);
152			goto end;
153			}
154		}
155	else
156		in = BIO_new_fp (stdin, BIO_NOCLOSE);
157
158	if (outfile)
159		{
160		if (!(out = BIO_new_file (outfile, "w")))
161			{
162			BIO_printf(bio_err,
163				 "Can't open output file %s\n", outfile);
164			goto end;
165			}
166		}
167	else
168		{
169		out = BIO_new_fp (stdout, BIO_NOCLOSE);
170#ifdef OPENSSL_SYS_VMS
171			{
172			BIO *tmpbio = BIO_new(BIO_f_linebuffer());
173			out = BIO_push(tmpbio, out);
174			}
175#endif
176		}
177
178	pkey = PEM_read_bio_Parameters(in, NULL);
179	if (!pkey)
180		{
181		BIO_printf(bio_err, "Error reading parameters\n");
182		ERR_print_errors(bio_err);
183		goto end;
184		}
185
186	if (!noout)
187		PEM_write_bio_Parameters(out,pkey);
188
189	if (text)
190		EVP_PKEY_print_params(out, pkey, 0, NULL);
191
192	ret = 0;
193
194	end:
195	EVP_PKEY_free(pkey);
196	BIO_free_all(out);
197	BIO_free(in);
198
199	return ret;
200	}
201