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/*
* Copyright 2014 Vincent Sanders <vince@netsurf-browser.org>
*
* This file is part of libnsutils.
*
* Licensed under the MIT License,
* http://www.opensource.org/licenses/mit-license.php
*/
/**
* \file
* Base64 encoding and decoding interface.
*/
#ifndef NSUTILS_BASE64_H_
#define NSUTILS_BASE64_H_
#include <inttypes.h>
#include <nsutils/errors.h>
/**
* Base 64 encode data.
*
* allocate a buffer and encode source data into it using the Base64 encoding.
*
* \param input The source data to encode.
* \param input_length The length of the source data.
* \param output The buffer to recive data into, the caller must free.
* \param output_length The length of data placed in \a output
* \return NSUERROR_OK on success and \a output updated else error code.
*/
nsuerror nsu_base64_encode_alloc(const uint8_t *input,
size_t input_length,
uint8_t **output,
size_t *output_length);
/**
* Base 64 encode data.
*
* encode source data into buffer it using the Base64 encoding.
*
* \param input The source data to encode.
* \param input_length The length of the source data.
* \param output The output buffer
* \param output_length The size of the \a output buffer on entry updated with length written on exit.
* \return NSUERROR_OK on success and \a output_length updated else error code.
*/
nsuerror nsu_base64_encode(const uint8_t *input,
size_t input_length,
uint8_t *output,
size_t *output_length);
/**
* Base 64 encode data.
*
* allocate a buffer and encode source data into it using the base64 URL safe
* encoding.
*
* \param input The source data to encode.
* \param input_length The length of the source data.
* \param output The buffer to recive data into, the caller must free.
* \param output_length The length of data placed in \a output
* \return NSERROR_OK on success and \a output updated else error code.
*/
nsuerror nsu_base64_encode_alloc_url(const uint8_t *input,
size_t input_length,
uint8_t **output,
size_t *output_length);
/**
* Base 64 encode data.
*
* encode source data into buffer using the Base64 URL safe encoding.
*
* \param input The source data to encode.
* \param input_length The length of the source data.
* \param output The output buffer
* \param output_length The size of the \a output buffer on entry updated with length written on exit.
* \return NSUERROR_OK on success and \a output_length updated else error code.
*/
nsuerror nsu_base64_encode_url(const uint8_t *input,
size_t input_length,
uint8_t *output,
size_t *output_length);
/**
* Base 64 decode data.
*
* allocate a buffer and decode source data into it using the Base64 encoding.
*
* \param input The source data to decode.
* \param input_length The length of the source data.
* \param output The buffer to recive data into, the caller must free.
* \param output_length The length of data placed in \a output
* \return NSERROR_OK on success and \a output updated else error code.
*/
nsuerror nsu_base64_decode_alloc(const uint8_t *input,
size_t input_length,
uint8_t **output,
size_t *output_length);
/**
* Base 64 decode data.
*
* Allocate a buffer and decode source data into it using the Base64 URL safe
* encoding.
*
* \param input The source data to decode.
* \param input_length The length of the source data.
* \param output The buffer to recive data into, the caller must free.
* \param output_length The length of data placed in \a output
* \return NSERROR_OK on success and \a output updated else error code.
*/
nsuerror nsu_base64_decode_alloc_url(const uint8_t *input,
size_t input_length,
uint8_t **output,
size_t *output_length);
#endif
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