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c_src/p1_sha.c

/*
* Copyright (C) 2002-2024 ProcessOne, SARL. 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.
*
*/
#include <erl_nif.h>
#include <stdio.h>
static int load(ErlNifEnv* env, void** priv, ERL_NIF_TERM load_info)
{
return 0;
}
static int upgrade(ErlNifEnv* caller_env, void** priv_data,
void** old_priv_data, ERL_NIF_TERM load_info)
{
return 0;
}
static ERL_NIF_TERM to_hexlist(ErlNifEnv* env, int argc,
const ERL_NIF_TERM argv[])
{
ErlNifBinary in;
ErlNifBinary out;
int res, i;
if (argc == 1) {
if (enif_inspect_iolist_as_binary(env, argv[0], &in)) {
res = enif_alloc_binary(2*in.size, &out);
if (res) {
for (i = 0; i<in.size; i++) {
sprintf((char *) (out.data + 2*i), "%02x", in.data[i]);
}
return enif_make_binary(env, &out);
}
}
}
return enif_make_badarg(env);
}
static ErlNifFunc nif_funcs[] =
{
{"to_hexlist", 1, to_hexlist}
};
ERL_NIF_INIT(p1_sha, nif_funcs, load, NULL, upgrade, NULL)