mbedtls/include/polarssl/base64.h

63 lines
1.8 KiB
C

/**
* \file base64.h
*/
#ifndef POLARSSL_BASE64_H
#define POLARSSL_BASE64_H
#define POLARSSL_ERR_BASE64_BUFFER_TOO_SMALL -0x0010
#define POLARSSL_ERR_BASE64_INVALID_CHARACTER -0x0012
#ifdef __cplusplus
extern "C" {
#endif
/**
* \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, int *dlen,
unsigned char *src, int 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, int *dlen,
unsigned char *src, int slen );
/**
* \brief Checkup routine
*
* \return 0 if successful, or 1 if the test failed
*/
int base64_self_test( int verbose );
#ifdef __cplusplus
}
#endif
#endif /* base64.h */