mirror of
https://github.com/RfidResearchGroup/proxmark3.git
synced 2024-11-11 18:33:18 +08:00
96 lines
3.2 KiB
C
96 lines
3.2 KiB
C
/**
|
|
* \file base64.h
|
|
*
|
|
* \brief RFC 1521 base64 encoding/decoding
|
|
*/
|
|
/*
|
|
* Copyright The Mbed TLS Contributors
|
|
* SPDX-License-Identifier: Apache-2.0
|
|
*
|
|
* Licensed under the Apache License, Version 2.0 (the "License"); you may
|
|
* not use this file except in compliance with the License.
|
|
* You may obtain a copy of the License at
|
|
*
|
|
* http://www.apache.org/licenses/LICENSE-2.0
|
|
*
|
|
* Unless required by applicable law or agreed to in writing, software
|
|
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
|
|
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
* See the License for the specific language governing permissions and
|
|
* limitations under the License.
|
|
*/
|
|
#ifndef MBEDTLS_BASE64_H
|
|
#define MBEDTLS_BASE64_H
|
|
|
|
#if !defined(MBEDTLS_CONFIG_FILE)
|
|
#include "mbedtls/config.h"
|
|
#else
|
|
#include MBEDTLS_CONFIG_FILE
|
|
#endif
|
|
|
|
#include <stddef.h>
|
|
|
|
#define MBEDTLS_ERR_BASE64_BUFFER_TOO_SMALL -0x002A /**< Output buffer too small. */
|
|
#define MBEDTLS_ERR_BASE64_INVALID_CHARACTER -0x002C /**< Invalid character in input. */
|
|
|
|
#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.
|
|
* If that length cannot be represented, then no data is
|
|
* written to the buffer and *olen is set to the maximum
|
|
* length representable as a size_t.
|
|
*
|
|
* \note Call this function with dlen = 0 to obtain the
|
|
* required buffer size in *olen
|
|
*/
|
|
int mbedtls_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 mbedtls_base64_decode(unsigned char *dst, size_t dlen, size_t *olen,
|
|
const unsigned char *src, size_t slen);
|
|
|
|
#if defined(MBEDTLS_SELF_TEST)
|
|
/**
|
|
* \brief Checkup routine
|
|
*
|
|
* \return 0 if successful, or 1 if the test failed
|
|
*/
|
|
int mbedtls_base64_self_test(int verbose);
|
|
|
|
#endif /* MBEDTLS_SELF_TEST */
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
|
|
#endif /* base64.h */
|