diff options
Diffstat (limited to 'lib/crypto/c_src/math.c')
-rw-r--r-- | lib/crypto/c_src/math.c | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/lib/crypto/c_src/math.c b/lib/crypto/c_src/math.c new file mode 100644 index 0000000000..7d7d146ca9 --- /dev/null +++ b/lib/crypto/c_src/math.c @@ -0,0 +1,43 @@ +/* + * %CopyrightBegin% + * + * Copyright Ericsson AB 2010-2018. 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 "math.h" + +ERL_NIF_TERM do_exor(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[]) +{/* (Data1, Data2) */ + ErlNifBinary d1, d2; + unsigned char* ret_ptr; + int i; + ERL_NIF_TERM ret; + + if (!enif_inspect_iolist_as_binary(env,argv[0], &d1) + || !enif_inspect_iolist_as_binary(env,argv[1], &d2) + || d1.size != d2.size) { + return enif_make_badarg(env); + } + ret_ptr = enif_make_new_binary(env, d1.size, &ret); + + for (i=0; i<d1.size; i++) { + ret_ptr[i] = d1.data[i] ^ d2.data[i]; + } + CONSUME_REDS(env,d1); + return ret; +} + |