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comparison: security/nss/lib/freebl/mpi/utils/prng.c
security/nss/lib/freebl/mpi/utils/prng.c
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| -1:000000000000 | 0:af0c4d294550 |
|---|---|
| 1 /* | |
| 2 * prng.c | |
| 3 * | |
| 4 * Command-line pseudo-random number generator | |
| 5 * | |
| 6 * This Source Code Form is subject to the terms of the Mozilla Public | |
| 7 * License, v. 2.0. If a copy of the MPL was not distributed with this | |
| 8 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ | |
| 9 | |
| 10 #include <stdio.h> | |
| 11 #include <stdlib.h> | |
| 12 #include <limits.h> | |
| 13 #include <time.h> | |
| 14 | |
| 15 #ifdef __OS2__ | |
| 16 #include <types.h> | |
| 17 #include <process.h> | |
| 18 #else | |
| 19 #include <unistd.h> | |
| 20 #endif | |
| 21 | |
| 22 #include "bbs_rand.h" | |
| 23 | |
| 24 int main(int argc, char *argv[]) | |
| 25 { | |
| 26 unsigned char *seed; | |
| 27 unsigned int ix, num = 1; | |
| 28 pid_t pid; | |
| 29 | |
| 30 if(argc > 1) { | |
| 31 num = atoi(argv[1]); | |
| 32 if(num <= 0) | |
| 33 num = 1; | |
| 34 } | |
| 35 | |
| 36 pid = getpid(); | |
| 37 srand(time(NULL) * (unsigned int)pid); | |
| 38 | |
| 39 /* Not a perfect seed, but not bad */ | |
| 40 seed = malloc(bbs_seed_size); | |
| 41 for(ix = 0; ix < bbs_seed_size; ix++) { | |
| 42 seed[ix] = rand() % UCHAR_MAX; | |
| 43 } | |
| 44 | |
| 45 bbs_srand(seed, bbs_seed_size); | |
| 46 memset(seed, 0, bbs_seed_size); | |
| 47 free(seed); | |
| 48 | |
| 49 while(num-- > 0) { | |
| 50 ix = bbs_rand(); | |
| 51 | |
| 52 printf("%u\n", ix); | |
| 53 } | |
| 54 | |
| 55 return 0; | |
| 56 | |
| 57 } |
