NetBSD-5.0.2/crypto/dist/heimdal/lib/hcrypto/test_rand.c

/*
 * Copyright (c) 2007 Kungliga Tekniska Högskolan
 * (Royal Institute of Technology, Stockholm, Sweden). 
 * 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. Neither the name of the Institute nor the names of its contributors 
 *    may be used to endorse or promote products derived from this software 
 *    without specific prior written permission. 
 *
 * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND 
 * ANY EXPRESS 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 INSTITUTE OR 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. 
 */

#ifdef HAVE_CONFIG_H
#include <config.h>
#endif

#ifdef RCSID
__RCSID("$Heimdal: test_rand.c 20466 2007-04-20 08:29:05Z lha $"
        "$NetBSD: test_rand.c,v 1.1 2008/03/22 09:39:27 mlelstv Exp $");
#endif

#include <stdio.h>

#include <roken.h>
#include <getarg.h>

#include "rand.h"


/*
 *
 */

static int version_flag;
static int help_flag;
static int len = 1024 * 1024;
static char *rand_method;

static struct getargs args[] = {
    { "length",	0,	arg_integer,	&len,
      "length", NULL },
    { "method",	0,	arg_string,	&rand_method,
      "method", NULL },
    { "version",	0,	arg_flag,	&version_flag,
      "print version", NULL },
    { "help",		0,	arg_flag,	&help_flag,
      NULL, 	NULL }
};

/*
 *
 */

/*
 *
 */

static void
usage (int ret)
{
    arg_printusage (args,
		    sizeof(args)/sizeof(args[0]),
		    NULL,
		    "out-random-file");
    exit (ret);
}

int
main(int argc, char **argv)
{
    int idx = 0;
    char *buffer;
    char path[MAXPATHLEN];

    setprogname(argv[0]);

    if(getarg(args, sizeof(args) / sizeof(args[0]), argc, argv, &idx))
	usage(1);
    
    if (help_flag)
	usage(0);

    if(version_flag){
	print_version(NULL);
	exit(0);
    }

    argc -= idx;
    argv += idx;

    if (argc < 1)
	usage(1);

    buffer = emalloc(len);

    if (rand_method) {
	if (strcasecmp(rand_method, "fortuna") == 0)
	    RAND_set_rand_method(RAND_fortuna_method());
	else if (strcasecmp(rand_method, "unix") == 0)
	    RAND_set_rand_method(RAND_unix_method());
	else if (strcasecmp(rand_method, "egd") == 0)
	    RAND_set_rand_method(RAND_egd_method());
	else
	    errx(1, "unknown method %s", rand_method);
    }
	    
    if (RAND_file_name(path, sizeof(path)) == NULL)
	errx(1, "RAND_file_name failed");

    if (RAND_status() != 1)
	errx(1, "random not ready yet");

    if (RAND_bytes(buffer, len) != 1)
	errx(1, "RAND_bytes");

    rk_dumpdata(argv[0], buffer, len);

    free(buffer);

    if (RAND_write_file("test.file") != 1)
	errx(1, "RAND_write_file");
    if (RAND_load_file("test.file", 1024) != 1)
	errx(1, "RAND_load_file");

    return 0;
}