base64.c File Reference

#include <stdint.h>
#include "base64.h"

Include dependency graph for base64.c:

Functions
int	base64_decode (unsigned char *dst, size_t *dlen, const unsigned char *src, size_t slen)
	Decode a base64-formatted buffer.

Variables
static const unsigned char	base64_dec_map [128]

Function Documentation

base64_decode()

int base64_decode	(	unsigned char *	dst,
		size_t *	dlen,
		const unsigned char *	src,
		size_t	slen )

Decode a base64-formatted buffer.

Parameters

dst	destination buffer
dlen	size of the buffer
src	source buffer
slen	amount of data to be decoded

Returns

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

References base64_dec_map, POLARSSL_ERR_BASE64_BUFFER_TOO_SMALL, and POLARSSL_ERR_BASE64_INVALID_CHARACTER.

Referenced by alpm_decode_signature().

Variable Documentation

base64_dec_map

const unsigned char base64_dec_map[128]

static

Initial value:

=
{
    127, 127, 127, 127, 127, 127, 127, 127, 127, 127,
    127, 127, 127, 127, 127, 127, 127, 127, 127, 127,
    127, 127, 127, 127, 127, 127, 127, 127, 127, 127,
    127, 127, 127, 127, 127, 127, 127, 127, 127, 127,
    127, 127, 127,  62, 127, 127, 127,  63,  52,  53,
     54,  55,  56,  57,  58,  59,  60,  61, 127, 127,
    127,  64, 127, 127, 127,   0,   1,   2,   3,   4,
      5,   6,   7,   8,   9,  10,  11,  12,  13,  14,
     15,  16,  17,  18,  19,  20,  21,  22,  23,  24,
     25, 127, 127, 127, 127, 127, 127,  26,  27,  28,
     29,  30,  31,  32,  33,  34,  35,  36,  37,  38,
     39,  40,  41,  42,  43,  44,  45,  46,  47,  48,
     49,  50,  51, 127, 127, 127, 127, 127
}

Referenced by base64_decode().