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/* $OpenBSD: pkeyparam.c,v 1.18 2023/07/23 11:39:29 tb Exp $ */
/* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL
* project 2006
*/
/* ====================================================================
* Copyright (c) 2006 The OpenSSL Project. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* 3. All advertising materials mentioning features or use of this
* software must display the following acknowledgment:
* "This product includes software developed by the OpenSSL Project
* for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
*
* 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
* endorse or promote products derived from this software without
* prior written permission. For written permission, please contact
* licensing@OpenSSL.org.
*
* 5. Products derived from this software may not be called "OpenSSL"
* nor may "OpenSSL" appear in their names without prior written
* permission of the OpenSSL Project.
*
* 6. Redistributions of any form whatsoever must retain the following
* acknowledgment:
* "This product includes software developed by the OpenSSL Project
* for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
*
* THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
* EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
* OF THE POSSIBILITY OF SUCH DAMAGE.
* ====================================================================
*
* This product includes cryptographic software written by Eric Young
* (eay@cryptsoft.com). This product includes software written by Tim
* Hudson (tjh@cryptsoft.com).
*
*/
#include <stdio.h>
#include <string.h>
#include "apps.h"
#include <openssl/err.h>
#include <openssl/evp.h>
#include <openssl/pem.h>
static struct {
int check;
char *infile;
int noout;
char *outfile;
int text;
} cfg;
static const struct option pkeyparam_options[] = {
{
.name = "check",
.desc = "Check validity of key parameters",
.type = OPTION_FLAG,
.opt.flag = &cfg.check,
},
{
.name = "in",
.argname = "file",
.desc = "Input file (default stdin)",
.type = OPTION_ARG,
.opt.arg = &cfg.infile,
},
{
.name = "noout",
.desc = "Do not print encoded version of the parameters",
.type = OPTION_FLAG,
.opt.flag = &cfg.noout,
},
{
.name = "out",
.argname = "file",
.desc = "Output file (default stdout)",
.type = OPTION_ARG,
.opt.arg = &cfg.outfile,
},
{
.name = "text",
.desc = "Print out the parameters in plain text",
.type = OPTION_FLAG,
.opt.flag = &cfg.text,
},
{ NULL },
};
static void
pkeyparam_usage(void)
{
fprintf(stderr,
"usage: pkeyparam [-check] [-in file] [-noout] [-out file] "
"[-text]\n");
options_usage(pkeyparam_options);
}
int
pkeyparam_main(int argc, char **argv)
{
BIO *in = NULL, *out = NULL;
EVP_PKEY *pkey = NULL;
int ret = 1;
if (pledge("stdio cpath wpath rpath", NULL) == -1) {
perror("pledge");
exit(1);
}
memset(&cfg, 0, sizeof(cfg));
if (options_parse(argc, argv, pkeyparam_options, NULL, NULL) != 0) {
pkeyparam_usage();
return (1);
}
if (cfg.infile) {
if (!(in = BIO_new_file(cfg.infile, "r"))) {
BIO_printf(bio_err, "Can't open input file %s\n",
cfg.infile);
goto end;
}
} else
in = BIO_new_fp(stdin, BIO_NOCLOSE);
if (cfg.outfile) {
if (!(out = BIO_new_file(cfg.outfile, "w"))) {
BIO_printf(bio_err, "Can't open output file %s\n",
cfg.outfile);
goto end;
}
} else {
out = BIO_new_fp(stdout, BIO_NOCLOSE);
}
pkey = PEM_read_bio_Parameters(in, NULL);
if (!pkey) {
BIO_printf(bio_err, "Error reading parameters\n");
ERR_print_errors(bio_err);
goto end;
}
if (cfg.check) {
if (!pkey_check(out, pkey, EVP_PKEY_param_check, "Parameters"))
goto end;
}
if (!cfg.noout)
PEM_write_bio_Parameters(out, pkey);
if (cfg.text)
EVP_PKEY_print_params(out, pkey, 0, NULL);
ret = 0;
end:
EVP_PKEY_free(pkey);
BIO_free_all(out);
BIO_free(in);
return ret;
}
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