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| author | Christian Grothoff <christian@grothoff.org> | 2011-11-23 19:23:03 +0000 |
|---|---|---|
| committer | Christian Grothoff <christian@grothoff.org> | 2011-11-23 19:23:03 +0000 |
| commit | a39e9010af50091561d45bf04bfedd10fb4cc70a (patch) | |
| tree | bd7c2e5c736fa4e49e900e4b714e746a3cc0de2f | |
| parent | 383241240e8b1409c5e36dd00074af8402aa6c10 (diff) | |
LRN: fixing 1956 by using a better random generator on W32
| -rw-r--r-- | src/util/crypto_random.c | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/src/util/crypto_random.c b/src/util/crypto_random.c index 719acf07c6..9fc14863cc 100644 --- a/src/util/crypto_random.c +++ b/src/util/crypto_random.c @@ -34,6 +34,35 @@ #define LOG_STRERROR(kind,syscall) GNUNET_log_from_strerror (kind, "util", syscall) +/* TODO: ndurner, move this to plibc? */ +/* The code is derived from glibc, obviously */ +#if MINGW +#ifdef RANDOM +# undef RANDOM +#endif +#ifdef SRANDOM +# undef SRANDOM +#endif +#define RANDOM() glibc_weak_rand32() +#define SRANDOM(s) glibc_weak_srand32(s) +static int32_t glibc_weak_rand32_state = 1; + +void +glibc_weak_srand32 (int32_t s) +{ + glibc_weak_rand32_state = s; +} + +int32_t +glibc_weak_rand32 () +{ + int32_t val = glibc_weak_rand32_state; + val = ((glibc_weak_rand32_state * 1103515245) + 12345) & 0x7fffffff; + glibc_weak_rand32_state = val; + return val; +} +#endif + /** * Create a cryptographically weak pseudo-random number in the interval of 0 to 1. * |