base64.cpp File Reference

base64 encoding More...

#include "base64.hpp"
#include <M5Utility.h>

Namespaces
namespace	m5
	Top level namespace of M5.

Functions
uint32_t	m5::utility::encode_base64 (char *out, const uint32_t olen, const uint8_t *buf, const uint32_t blen, const uint8_t line_len, const bool urlEncode, const bool padding)
	encode Base64
uint32_t	m5::utility::decode_base64 (uint8_t *out, const uint32_t olen, const char *buf, const uint32_t blen, const bool urlEncode, const bool padding)
	decode Base64 / Base64URL

Detailed Description

base64 encoding

Function Documentation

decode_base64()

uint32_t m5::utility::decode_base64	(	uint8_t *	out,
		const uint32_t	olen,
		const char *	buf,
		const uint32_t	blen,
		const bool	urlEncode,
		const bool	padding )

decode Base64 / Base64URL

Parameters

[out]	out	Output buffer (decoded bytes)
	olen	Output buffer length
	buf	Input buffer (base64 text; may include CR/LF/spaces)
	blen	Input buffer length
	urlEncode	base64url decoding if true
	padding	Expect/allow padding if true

Returns

Decoded length

Note

padding true: Input must contain '='’ padding (RFC 4648 standard)

padding false: Input must not contain' ='’. Incomplete groups are auto-completed

encode_base64()

uint32_t m5::utility::encode_base64	(	char *	out,
		const uint32_t	olen,
		const uint8_t *	buf,
		const uint32_t	blen,
		const uint8_t	line_len,
		const bool	urlEncode,
		const bool	padding )

encode Base64

Parameters

[out]	out	Output buffer
	olen	Output buffer length
	buf	Input buffer
	blen	Input buffer length
	line_len	==0 No line breaks ! =0: Line break at that number of characters
	urlEncode	base64url encoding if true
	padding	Enable padding if true

Returns

Encoded length