base64.h

/*  Copyright (c) 2006-2008, Philip Busch <philip@0xe3.com>
 *  All rights reserved.
 *
 *  Redistribution and use in source and binary forms, with or without
 *  modification, are permitted provided that the following conditions are met:
 *
 *   - Redistributions of source code must retain the above copyright notice,
 *     this list of conditions and the following disclaimer.
 *   - Redistributions in binary form must reproduce the above copyright
 *     notice, this list of conditions and the following disclaimer in the
 *     documentation and/or other materials provided with the distribution.
 *
 *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 *  AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 *  IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 *  ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
 *  LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 *  CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 *  SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 *  INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 *  CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 *  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 *  POSSIBILITY OF SUCH DAMAGE.
 */

/**
 * @file
 * Base64 header.
 * @ingroup base64
 */

#ifndef _BASE64_H
#define _BASE64_H

#include <stddef.h>

void   base64_encode_block(unsigned char out[4], const unsigned char in[3], const size_t len, const char charset[]);
int    base64_decode_block(unsigned char out[3], const unsigned char in[4], const size_t len);
size_t base64_encoded_size(const size_t len);
size_t base64_decoded_size(const size_t len);
size_t base64_encode_binary(char *out, const unsigned char *in, size_t len, const char charset[]);
int    base64_decode_binary(unsigned char *out, const char *in, const size_t len);
int    base64_encode(char* out, const char *in, const size_t len);
int    url_safe_base64_encode(char* out, const char *in, const size_t len);

#endif /* ! _BASE64_H */