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fixup! When compiling for fuzzing, ensure the pseudo random number seed is non-zero.

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This commit is contained in:
Ondřej Surý 2018-11-28 22:49:42 +01:00 committed by Stephen Morris
parent 77032a4e29
commit d13cabd27e
1 changed files with 2 additions and 4 deletions
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6
lib/isc/random.c
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@ -79,19 +79,17 @@ static isc_once_t isc_random_once = ISC_ONCE_INIT;
static void
isc_random_initialize(void) {
int useed[4] = {0,0,0,1};
#if FUZZING_BUILD_MODE_UNSAFE_FOR_PRODUCTION
/*
* Set a constant seed to help in problem reproduction should fuzzing
* find a crash or a hang. The seed array must be non-zero else
* xoshiro128starstar will generate an infinite series of zeroes.
*/
memset(seed, 0, sizeof(seed));
seed[0] = 1;
#else
int useed[4] = {0,0,0,0};
isc_entropy_get(useed, sizeof(useed));
memcpy(seed, useed, sizeof(seed));
#endif
memcpy(seed, useed, sizeof(seed));
}
uint8_t