diff options
Diffstat (limited to 'random_seed.c')
| -rw-r--r-- | random_seed.c | 13 |
1 files changed, 11 insertions, 2 deletions
diff --git a/random_seed.c b/random_seed.c index ff5338f..f3ee740 100644 --- a/random_seed.c +++ b/random_seed.c @@ -13,6 +13,10 @@ #include "config.h" #include "strerror_override.h" #include <stdio.h> +#include <stdlib.h> +#ifdef HAVE_BSD_STDLIB_H +#include <bsd/stdlib.h> +#endif #define DEBUG_SEED(s) @@ -168,7 +172,8 @@ static int get_getrandom_seed(int *seed) ssize_t ret; - do { + do + { ret = getrandom(seed, sizeof(*seed), GRND_NONBLOCK); } while ((ret == -1) && (errno == EINTR)); @@ -273,7 +278,7 @@ static int get_cryptgenrandom_seed(int *seed) } else { - BOOL ret = CryptGenRandom(hProvider, sizeof(*seed), (BYTE*)seed); + BOOL ret = CryptGenRandom(hProvider, sizeof(*seed), (BYTE *)seed); CryptReleaseContext(hProvider, 0); if (!ret) { @@ -310,6 +315,10 @@ int json_c_get_random_seed(void) if (has_rdrand()) return get_rdrand_seed(); #endif +#ifdef HAVE_ARC4RANDOM + /* arc4random never fails, so use it if it's available */ + return arc4random(); +#endif #ifdef HAVE_GETRANDOM if (get_getrandom_seed(&seed) == 0) return seed; |