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/*
* %CopyrightBegin%
*
* Copyright Ericsson AB 2010-2021. All Rights Reserved.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
* %CopyrightEnd%
*/
#include "common.h"
#include "hash_equals.h"
ERL_NIF_TERM hash_equals_nif(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[])
{
#ifdef HAVE_OPENSSL_CRYPTO_MEMCMP
ErlNifBinary s1, s2;
ASSERT(argc == 2);
if (!enif_inspect_binary(env, argv[0], &s1))
goto bad_arg;
if (!enif_inspect_binary(env, argv[1], &s2))
goto bad_arg;
if (s1.size != s2.size)
goto err;
if (CRYPTO_memcmp(s1.data, s2.data, s1.size) == 0)
return enif_make_atom(env, "true");
return enif_make_atom(env, "false");
bad_arg:
err:
return enif_make_badarg(env);
#else
return EXCP_NOTSUP(env, "Unsupported CRYPTO_memcmp");
#endif
}
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