/** * \file base64.h * * Copyright (C) 2006-2010, Brainspark B.V. * * This file is part of PolarSSL (http://www.polarssl.org) * Lead Maintainer: Paul Bakker <polarssl_maintainer at polarssl.org> * * All rights reserved. * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * This program 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 General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program. If not, see <http://www.gnu.org/licenses/>. */ #ifndef _BASE64_H #define _BASE64_H #include <string.h> #define POLARSSL_ERR_BASE64_BUFFER_TOO_SMALL -0x0010 /**< Output buffer too small. */ #define POLARSSL_ERR_BASE64_INVALID_CHARACTER -0x0012 /**< Invalid character in input. */ /** * \brief Encode a buffer into base64 format * * \param dst destination buffer * \param dlen size of the buffer * \param src source buffer * \param slen amount of data to be encoded * * \return 0 if successful, or POLARSSL_ERR_BASE64_BUFFER_TOO_SMALL. * *dlen is always updated to reflect the amount * of data that has (or would have) been written. * * \note Call this function with *dlen = 0 to obtain the * required buffer size in *dlen */ int base64_encode( unsigned char *dst, size_t *dlen, const unsigned char *src, size_t slen ); /** * \brief Decode a base64-formatted buffer * * \param dst destination buffer * \param dlen size of the buffer * \param src source buffer * \param slen amount of data to be decoded * * \return 0 if successful, POLARSSL_ERR_BASE64_BUFFER_TOO_SMALL, or * POLARSSL_ERR_BASE64_INVALID_DATA if the input data is not * correct. *dlen is always updated to reflect the amount * of data that has (or would have) been written. * * \note Call this function with *dlen = 0 to obtain the * required buffer size in *dlen */ int base64_decode( unsigned char *dst, size_t *dlen, const unsigned char *src, size_t slen ); #endif /* base64.h */