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/*
* prng.c
*
* Command-line pseudo-random number generator
*
* The contents of this file are subject to the Mozilla Public
* License Version 1.1 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS
* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
* implied. See the License for the specific language governing
* rights and limitations under the License.
*
* The Original Code is the MPI Arbitrary Precision Integer Arithmetic
* library.
*
* The Initial Developer of the Original Code is Michael J. Fromberger.
* Portions created by Michael J. Fromberger are
* Copyright (C) 1998, 1999, 2000 Michael J. Fromberger.
* All Rights Reserved.
*
* Contributor(s):
*
* Alternatively, the contents of this file may be used under the
* terms of the GNU General Public License Version 2 or later (the
* "GPL"), in which case the provisions of the GPL are applicable
* instead of those above. If you wish to allow use of your
* version of this file only under the terms of the GPL and not to
* allow others to use your version of this file under the MPL,
* indicate your decision by deleting the provisions above and
* replace them with the notice and other provisions required by
* the GPL. If you do not delete the provisions above, a recipient
* may use your version of this file under either the MPL or the GPL.
*
* $Id$
*/
#include <stdio.h>
#include <stdlib.h>
#include <limits.h>
#include <time.h>
#include <unistd.h>
#include "bbs_rand.h"
int main(int argc, char *argv[])
{
unsigned char *seed;
unsigned int ix, num = 1;
pid_t pid;
if(argc > 1) {
num = atoi(argv[1]);
if(num <= 0)
num = 1;
}
pid = getpid();
srand(time(NULL) * (unsigned int)pid);
/* Not a perfect seed, but not bad */
seed = malloc(bbs_seed_size);
for(ix = 0; ix < bbs_seed_size; ix++) {
seed[ix] = rand() % UCHAR_MAX;
}
bbs_srand(seed, bbs_seed_size);
memset(seed, 0, bbs_seed_size);
free(seed);
while(num-- > 0) {
ix = bbs_rand();
printf("%u\n", ix);
}
return 0;
}
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