diff options
| -rw-r--r-- | lib/crypto/c_src/rand.c | 15 |
1 files changed, 11 insertions, 4 deletions
diff --git a/lib/crypto/c_src/rand.c b/lib/crypto/c_src/rand.c index 4f3c8dd500..dd1a7a1600 100644 --- a/lib/crypto/c_src/rand.c +++ b/lib/crypto/c_src/rand.c @@ -130,12 +130,19 @@ ERL_NIF_TERM rand_uniform_nif(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[ } ERL_NIF_TERM rand_seed_nif(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[]) -{ +{/* (Seed) */ ErlNifBinary seed_bin; + if (argc != 1) + goto bad_arg; if (!enif_inspect_binary(env, argv[0], &seed_bin)) - return enif_make_badarg(env); - RAND_seed(seed_bin.data,seed_bin.size); + goto bad_arg; + if (seed_bin.size > INT_MAX) + goto bad_arg; + + RAND_seed(seed_bin.data, (int)seed_bin.size); return atom_ok; -} + bad_arg: + return enif_make_badarg(env); +} |