1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000 1.2 +++ b/security/nss/lib/freebl/mpi/utils/prng.c Wed Dec 31 06:09:35 2014 +0100 1.3 @@ -0,0 +1,57 @@ 1.4 +/* 1.5 + * prng.c 1.6 + * 1.7 + * Command-line pseudo-random number generator 1.8 + * 1.9 + * This Source Code Form is subject to the terms of the Mozilla Public 1.10 + * License, v. 2.0. If a copy of the MPL was not distributed with this 1.11 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ 1.12 + 1.13 +#include <stdio.h> 1.14 +#include <stdlib.h> 1.15 +#include <limits.h> 1.16 +#include <time.h> 1.17 + 1.18 +#ifdef __OS2__ 1.19 +#include <types.h> 1.20 +#include <process.h> 1.21 +#else 1.22 +#include <unistd.h> 1.23 +#endif 1.24 + 1.25 +#include "bbs_rand.h" 1.26 + 1.27 +int main(int argc, char *argv[]) 1.28 +{ 1.29 + unsigned char *seed; 1.30 + unsigned int ix, num = 1; 1.31 + pid_t pid; 1.32 + 1.33 + if(argc > 1) { 1.34 + num = atoi(argv[1]); 1.35 + if(num <= 0) 1.36 + num = 1; 1.37 + } 1.38 + 1.39 + pid = getpid(); 1.40 + srand(time(NULL) * (unsigned int)pid); 1.41 + 1.42 + /* Not a perfect seed, but not bad */ 1.43 + seed = malloc(bbs_seed_size); 1.44 + for(ix = 0; ix < bbs_seed_size; ix++) { 1.45 + seed[ix] = rand() % UCHAR_MAX; 1.46 + } 1.47 + 1.48 + bbs_srand(seed, bbs_seed_size); 1.49 + memset(seed, 0, bbs_seed_size); 1.50 + free(seed); 1.51 + 1.52 + while(num-- > 0) { 1.53 + ix = bbs_rand(); 1.54 + 1.55 + printf("%u\n", ix); 1.56 + } 1.57 + 1.58 + return 0; 1.59 + 1.60 +}