/* Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You 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.
 */

/*
 * Copyright (C) 2000-2012 Free Software Foundation, Inc.
 *
 * Author: Nikos Mavrogiannopoulos
 *
 * This file is part of GnuTLS.
 *
 * The GnuTLS is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public License
 * as published by the Free Software Foundation; either version 2.1 of
 * the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with this program.  If not, see <https://www.gnu.org/licenses/>
 *
 */

/*
 * Copyright (C) 2019-2026 by Sukchan Lee <acetcom@gmail.com>
 *
 * This file is part of Open5GS.
 *
 * 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.
 */

#if !defined(OGS_CRYPT_INSIDE) && !defined(OGS_CRYPT_COMPILATION)
#error "This header cannot be included directly."
#endif

#ifndef OGS_BASE64_H
#define OGS_BASE64_H

#ifdef __cplusplus
extern "C" {
#endif

int ogs_base64_decoded_size(const char *in);
int ogs_base64_decode_to_buffer(
        uint8_t *out, size_t out_size, const char *in);
int ogs_base64_decode_to_string(
        char *out, size_t out_size, const char *in);

int ogs_base64_encoded_size(size_t in_size);
int ogs_base64_encode_from_buffer(
        char *out, size_t out_size, const uint8_t *in, size_t in_size);
int ogs_base64_encode_from_string(
        char *out, size_t out_size, const char *in);

int ogs_fbase64_decode(const char *header,
        const uint8_t *data, size_t data_size, ogs_datum_t *result);

int ogs_pem_decode_curve25519_key(const char *filename, uint8_t *key);
int ogs_pem_decode_secp256r1_key(const char *filename, uint8_t *key);

#ifdef __cplusplus
}
#endif

#endif /* OGS_BASE64_H */
