| /** |
| * \file base64.h |
| * |
| * \brief RFC 1521 base64 encoding/decoding |
| * |
| * Copyright (C) 2006-2015, ARM Limited, All Rights Reserved |
| * |
| * This file is part of mbed TLS (https://tls.mbed.org) |
| * |
| * 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. |
| */ |
| #pragma once |
| |
| #include <stddef.h> |
| |
| #ifdef __cplusplus |
| extern "C" { |
| #endif |
| |
| /** |
| * \brief Encode a buffer into base64 format |
| * |
| * \param dst destination buffer |
| * \param dlen size of the destination buffer |
| * \param olen number of bytes written |
| * \param src source buffer |
| * \param slen amount of data to be encoded |
| * |
| * \return 0 if successful, or MBEDTLS_ERR_BASE64_BUFFER_TOO_SMALL. |
| * *olen 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 *olen |
| */ |
| int osmo_base64_encode(unsigned char *dst, size_t dlen, size_t *olen, |
| const unsigned char *src, size_t slen); |
| |
| /** |
| * \brief Decode a base64-formatted buffer |
| * |
| * \param dst destination buffer (can be NULL for checking size) |
| * \param dlen size of the destination buffer |
| * \param olen number of bytes written |
| * \param src source buffer |
| * \param slen amount of data to be decoded |
| * |
| * \return 0 if successful, MBEDTLS_ERR_BASE64_BUFFER_TOO_SMALL, or |
| * MBEDTLS_ERR_BASE64_INVALID_CHARACTER if the input data is |
| * not correct. *olen is always updated to reflect the amount |
| * of data that has (or would have) been written. |
| * |
| * \note Call this function with *dst = NULL or dlen = 0 to obtain |
| * the required buffer size in *olen |
| */ |
| int osmo_base64_decode(unsigned char *dst, size_t dlen, size_t *olen, |
| const unsigned char *src, size_t slen); |
| |
| #ifdef __cplusplus |
| } |
| #endif |