Head

GCC Code Coverage Report

Directory:	./		Exec	Total	Coverage
File:	usr.bin/openssl/prime.c	Lines:	35	57	61.4 %
Date:	2017-11-13	Branches:	15	28	53.6 %


/* $OpenBSD: prime.c,v 1.10 2015/10/17 15:00:11 doug Exp $ */
/* ====================================================================
 * Copyright (c) 2004 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
 *    openssl-core@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.
 *
 */

#include <string.h>
#include <limits.h>

#include "apps.h"

#include <openssl/bn.h>
#include <openssl/err.h>

struct {
	int bits;
	int checks;
	int generate;
	int hex;
	int safe;
} prime_config;

struct option prime_options[] = {
	{
		.name = "bits",
		.argname = "n",
		.desc = "Number of bits in the generated prime number",
		.type = OPTION_ARG_INT,
		.opt.value = &prime_config.bits,
	},
	{
		.name = "checks",
		.argname = "n",
		.desc = "Miller-Rabin probablistic primality test iterations",
		.type = OPTION_ARG_INT,
		.opt.value = &prime_config.checks,
	},
	{
		.name = "generate",
		.desc = "Generate a pseudo-random prime number",
		.type = OPTION_FLAG,
		.opt.flag = &prime_config.generate,
	},
	{
		.name = "hex",
		.desc = "Hexadecimal prime numbers",
		.type = OPTION_FLAG,
		.opt.flag = &prime_config.hex,
	},
	{
		.name = "safe",
		.desc = "Generate only \"safe\" prime numbers",
		.type = OPTION_FLAG,
		.opt.flag = &prime_config.safe,
	},
	{NULL},
};

static void
prime_usage()
{
	fprintf(stderr,
	    "usage: prime [-bits n] [-checks n] [-generate] [-hex] [-safe] "
	    "p\n");
	options_usage(prime_options);
}

int
prime_main(int argc, char **argv)
{
	BIGNUM *bn = NULL;
	char *prime = NULL;
	BIO *bio_out;
	char *s;
	int ret = 1;

	if (single_execution) {
		if (pledge("stdio rpath flock cpath wpath", NULL) == -1) {
			perror("pledge");
			exit(1);
		}
	}

	memset(&prime_config, 0, sizeof(prime_config));

	/* Default iterations for Miller-Rabin probabilistic primality test. */
	prime_config.checks = 20;

	if (options_parse(argc, argv, prime_options, &prime, NULL) != 0) {
		prime_usage();
		return (1);
	}

	if (prime == NULL && prime_config.generate == 0) {
		BIO_printf(bio_err, "No prime specified.\n");
		prime_usage();
		return (1);
	}

	if ((bio_out = BIO_new(BIO_s_file())) == NULL) {
		ERR_print_errors(bio_err);
		return (1);
	}
	BIO_set_fp(bio_out, stdout, BIO_NOCLOSE);

	if (prime_config.generate != 0) {
		if (prime_config.bits == 0) {
			BIO_printf(bio_err, "Specify the number of bits.\n");
			goto end;
		}
		bn = BN_new();
		if (!bn) {
			BIO_printf(bio_err, "Out of memory.\n");
			goto end;
		}
		if (!BN_generate_prime_ex(bn, prime_config.bits,
		    prime_config.safe, NULL, NULL, NULL)) {
			BIO_printf(bio_err, "Prime generation error.\n");
			goto end;
		}
		s = prime_config.hex ? BN_bn2hex(bn) : BN_bn2dec(bn);
		if (s == NULL) {
			BIO_printf(bio_err, "Out of memory.\n");
			goto end;
		}
		BIO_printf(bio_out, "%s\n", s);
		free(s);
	} else {
		if (prime_config.hex) {
			if (!BN_hex2bn(&bn, prime)) {
				BIO_printf(bio_err, "%s is an invalid hex "
				    "value.\n", prime);
				goto end;
			}
		} else {
			if (!BN_dec2bn(&bn, prime)) {
				BIO_printf(bio_err, "%s is an invalid decimal "
				    "value.\n", prime);
				goto end;
			}
		}

		BIO_printf(bio_out, "%s is %sprime\n", prime,
		    BN_is_prime_ex(bn, prime_config.checks,
			NULL, NULL) ? "" : "not ");
	}

	ret = 0;

end:
	BN_free(bn);
	BIO_free_all(bio_out);

	return (ret);
}


Generated by: GCOVR (Version 3.3)

Line	Branch	Exec	Source
1			/* $OpenBSD: prime.c,v 1.10 2015/10/17 15:00:11 doug Exp $ */
2			/* ====================================================================
3			* Copyright (c) 2004 The OpenSSL Project. All rights reserved.
4			*
5			* Redistribution and use in source and binary forms, with or without
6			* modification, are permitted provided that the following conditions
7			* are met:
8			*
9			* 1. Redistributions of source code must retain the above copyright
10			* notice, this list of conditions and the following disclaimer.
11			*
12			* 2. Redistributions in binary form must reproduce the above copyright
13			* notice, this list of conditions and the following disclaimer in
14			* the documentation and/or other materials provided with the
15			* distribution.
16			*
17			* 3. All advertising materials mentioning features or use of this
18			* software must display the following acknowledgment:
19			* "This product includes software developed by the OpenSSL Project
20			* for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
21			*
22			* 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
23			* endorse or promote products derived from this software without
24			* prior written permission. For written permission, please contact
25			* openssl-core@openssl.org.
26			*
27			* 5. Products derived from this software may not be called "OpenSSL"
28			* nor may "OpenSSL" appear in their names without prior written
29			* permission of the OpenSSL Project.
30			*
31			* 6. Redistributions of any form whatsoever must retain the following
32			* acknowledgment:
33			* "This product includes software developed by the OpenSSL Project
34			* for use in the OpenSSL Toolkit (http://www.openssl.org/)"
35			*
36			* THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
37			* EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
38			* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
39			* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
40			* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
41			* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
42			* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
43			* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
44			* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
45			* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
46			* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
47			* OF THE POSSIBILITY OF SUCH DAMAGE.
48			*
49			*/
50
51			#include <string.h>
52			#include <limits.h>
53
54			#include "apps.h"
55
56			#include <openssl/bn.h>
57			#include <openssl/err.h>
58
59			struct {
60			int bits;
61			int checks;
62			int generate;
63			int hex;
64			int safe;
65			} prime_config;
66
67			struct option prime_options[] = {
68			{
69			.name = "bits",
70			.argname = "n",
71			.desc = "Number of bits in the generated prime number",
72			.type = OPTION_ARG_INT,
73			.opt.value = &prime_config.bits,
74			},
75			{
76			.name = "checks",
77			.argname = "n",
78			.desc = "Miller-Rabin probablistic primality test iterations",
79			.type = OPTION_ARG_INT,
80			.opt.value = &prime_config.checks,
81			},
82			{
83			.name = "generate",
84			.desc = "Generate a pseudo-random prime number",
85			.type = OPTION_FLAG,
86			.opt.flag = &prime_config.generate,
87			},
88			{
89			.name = "hex",
90			.desc = "Hexadecimal prime numbers",
91			.type = OPTION_FLAG,
92			.opt.flag = &prime_config.hex,
93			},
94			{
95			.name = "safe",
96			.desc = "Generate only \"safe\" prime numbers",
97			.type = OPTION_FLAG,
98			.opt.flag = &prime_config.safe,
99			},
100			{NULL},
101			};
102
103			static void
104			prime_usage()
105			{
106		8	fprintf(stderr,
107			"usage: prime [-bits n] [-checks n] [-generate] [-hex] [-safe] "
108			"p\n");
109		4	options_usage(prime_options);
110		4	}
111
112			int
113			prime_main(int argc, char **argv)
114			{
115		32	BIGNUM *bn = NULL;
116		16	char *prime = NULL;
117			BIO *bio_out;
118			char *s;
119			int ret = 1;
120
121	✓✗	16	if (single_execution) {
122	✗✓	16	if (pledge("stdio rpath flock cpath wpath", NULL) == -1) {
123			perror("pledge");
124			exit(1);
125			}
126			}
127
128		16	memset(&prime_config, 0, sizeof(prime_config));
129
130			/* Default iterations for Miller-Rabin probabilistic primality test. */
131		16	prime_config.checks = 20;
132
133	✓✓	16	if (options_parse(argc, argv, prime_options, &prime, NULL) != 0) {
134		4	prime_usage();
135		4	return (1);
136			}
137
138	✗✓	12	if (prime == NULL && prime_config.generate == 0) {
139			BIO_printf(bio_err, "No prime specified.\n");
140			prime_usage();
141			return (1);
142			}
143
144	✗✓	12	if ((bio_out = BIO_new(BIO_s_file())) == NULL) {
145			ERR_print_errors(bio_err);
146			return (1);
147			}
148		12	BIO_set_fp(bio_out, stdout, BIO_NOCLOSE);
149
150	✓✓	12	if (prime_config.generate != 0) {
151	✗✓	4	if (prime_config.bits == 0) {
152			BIO_printf(bio_err, "Specify the number of bits.\n");
153			goto end;
154			}
155		4	bn = BN_new();
156	✗✓	4	if (!bn) {
157			BIO_printf(bio_err, "Out of memory.\n");
158			goto end;
159			}
160	✗✓	8	if (!BN_generate_prime_ex(bn, prime_config.bits,
161		4	prime_config.safe, NULL, NULL, NULL)) {
162			BIO_printf(bio_err, "Prime generation error.\n");
163			goto end;
164			}
165	✓✗	12	s = prime_config.hex ? BN_bn2hex(bn) : BN_bn2dec(bn);
166	✗✓	4	if (s == NULL) {
167			BIO_printf(bio_err, "Out of memory.\n");
168			goto end;
169			}
170		4	BIO_printf(bio_out, "%s\n", s);
171		4	free(s);
172		4	} else {
173	✗✓	8	if (prime_config.hex) {
174			if (!BN_hex2bn(&bn, prime)) {
175			BIO_printf(bio_err, "%s is an invalid hex "
176			"value.\n", prime);
177			goto end;
178			}
179			} else {
180	✗✓	8	if (!BN_dec2bn(&bn, prime)) {
181			BIO_printf(bio_err, "%s is an invalid decimal "
182			"value.\n", prime);
183			goto end;
184			}
185			}
186
187		16	BIO_printf(bio_out, "%s is %sprime\n", prime,
188		8	BN_is_prime_ex(bn, prime_config.checks,
189			NULL, NULL) ? "" : "not ");
190			}
191
192		12	ret = 0;
193
194			end:
195		12	BN_free(bn);
196		12	BIO_free_all(bio_out);
197
198		12	return (ret);
199		16	}