BN_primality_test

int BN_primality_test(int *is_probably_prime, const BIGNUM *candidate,
                      int checks, BN_CTX *ctx, int do_trial_division,
                      BN_GENCB *cb) {
  switch (BN_is_prime_fasttest_ex(candidate, checks, ctx, do_trial_division, cb)) {
    case 1:
      *is_probably_prime = 1;
      return 1;
    case 0:
      *is_probably_prime = 0;
      return 1;
    default:
      *is_probably_prime = 0;
      return 0;
  }
}