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base64.h File Reference

RFC 1521 base64 encoding/decoding. More...

#include "config.h"
#include <stddef.h>
Include dependency graph for base64.h:

Go to the source code of this file.

Macros

#define MBEDTLS_ERR_BASE64_BUFFER_TOO_SMALL   -0x002A
 
#define MBEDTLS_ERR_BASE64_INVALID_CHARACTER   -0x002C
 

Functions

int mbedtls_base64_encode (unsigned char *dst, size_t dlen, size_t *olen, const unsigned char *src, size_t slen)
 Encode a buffer into base64 format.
 
int mbedtls_base64_decode (unsigned char *dst, size_t dlen, size_t *olen, const unsigned char *src, size_t slen)
 Decode a base64-formatted buffer.
 

Detailed Description

RFC 1521 base64 encoding/decoding.

Definition in file base64.h.

Macro Definition Documentation

◆ MBEDTLS_ERR_BASE64_BUFFER_TOO_SMALL

#define MBEDTLS_ERR_BASE64_BUFFER_TOO_SMALL   -0x002A

Output buffer too small.

Definition at line 60 of file base64.h.

◆ MBEDTLS_ERR_BASE64_INVALID_CHARACTER

#define MBEDTLS_ERR_BASE64_INVALID_CHARACTER   -0x002C

Invalid character in input.

Definition at line 61 of file base64.h.

Function Documentation

◆ mbedtls_base64_decode()

int mbedtls_base64_decode ( unsigned char dst,
size_t  dlen,
size_t olen,
const unsigned char src,
size_t  slen 
)

Decode a base64-formatted buffer.

Parameters
dstdestination buffer (can be NULL for checking size)
dlensize of the destination buffer
olennumber of bytes written
srcsource buffer
slenamount of data to be decoded
Returns
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

◆ mbedtls_base64_encode()

int mbedtls_base64_encode ( unsigned char dst,
size_t  dlen,
size_t olen,
const unsigned char src,
size_t  slen 
)

Encode a buffer into base64 format.

Parameters
dstdestination buffer
dlensize of the destination buffer
olennumber of bytes written
srcsource buffer
slenamount of data to be encoded
Returns
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