include/netutils/base64.h

/****************************************************************************
 * apps/include/netutils/base64.h
 *
 * This file is part of the NuttX RTOS:
 *
 *   Copyright (C) 2012 Gregory Nutt. All rights reserved.
 *   Author: Darcy Gong
 *
 * Reference:
 *
 *   Base64 encoding/decoding (RFC1341)
 *   Copyright (c) 2005, Jouni Malinen <jkmaline@cc.hut.fi>
 *
 *   This program is free software; you can redistribute it and/or modify
 *   it under the terms of the GNU General Public License version 2 as
 *   published by the Free Software Foundation.
 *
 *   Alternatively, this software may be distributed under the terms of BSD
 *   license.
 *
 *   See README and COPYING for more details.
 *
 * And is re-released under the NuttX modified BSD license:
 *
 *   Redistribution and use in source and binary forms, with or without
 *   modification, are permitted provided that the following conditions
 *   are met:
 *
 *   1. Redistributions of source code must retain the above copyright
 *      notice, this list of conditions and the following disclaimer.
 *   2. 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.
 *   3. Neither the name of the Institute nor the names of its contributors
 *      may be used to endorse or promote products derived from this software
 *      without specific prior written permission.
 *
 *   THIS SOFTWARE IS PROVIDED BY THE INSTITUTE 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 INSTITUTE 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.
 *
 ****************************************************************************/

#ifndef __APPS_INCLUDE_NETUTILS_BASE64_H
#define __APPS_INCLUDE_NETUTILS_BASE64_H

/****************************************************************************
 * Included Files
 ****************************************************************************/

#include <nuttx/config.h>

#ifdef __cplusplus
extern "C"
{
#endif

/****************************************************************************
 * Public Function Prototypes
 ****************************************************************************/

#ifdef CONFIG_CODECS_BASE64
size_t    base64_encode_length(size_t len);
FAR void *base64_encode(FAR const void *src, size_t len, FAR void *dst,
                        FAR size_t *out_len);
size_t base64_decode_length(size_t len);
FAR void *base64_decode(FAR const void *src, size_t len, FAR void *dst,
                        FAR size_t *out_len);
FAR void *base64w_encode(FAR const void *src, size_t len, FAR void *dst,
                         FAR size_t *out_len);
FAR void *base64w_decode(FAR const void *src, size_t len, FAR void *dst,
                         FAR size_t *out_len);
#endif /* CONFIG_CODECS_BASE64 */

#ifdef __cplusplus
}
#endif

#endif /* __APPS_INCLUDE_NETUTILS_BASE64_H */