base16.h File Reference

#include <freeradius-devel/missing.h>
#include <freeradius-devel/util/sbuff.h>
#include <freeradius-devel/util/dbuff.h>
#include <stdbool.h>
#include <stddef.h>
#include <stdint.h>
#include <sys/types.h>

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Macros
#define	fr_base16_decode(_err, _out, _in, _no_trailing)    fr_base16_decode_nstd(_err, _out, _in, _no_trailing, fr_base16_alphabet_decode_mc)
#define	fr_base16_encode(_out, _in)    fr_base16_encode_nstd(_out, _in, fr_base16_alphabet_encode_lc)

Functions
static fr_slen_t	fr_base16_aencode (TALLOC_CTX *ctx, char **out, fr_dbuff_t *in)
	Convert binary data to a hex string, allocating the output buffer. More...
fr_slen_t	fr_base16_decode_nstd (fr_sbuff_parse_error_t *err, fr_dbuff_t *out, fr_sbuff_t *in, bool no_trailing, uint8_t const alphabet[static UINT8_MAX+1])
	Decode base16 encoded input. More...
fr_slen_t	fr_base16_encode_nstd (fr_sbuff_t *out, fr_dbuff_t *in, char const alphabet[static UINT8_MAX+1])
	Convert binary data to a hex string. More...
static bool	fr_is_base16_nstd (char c, uint8_t const alphabet[static UINT8_MAX+1])
	Check if char is in base16 alphabet. More...

Variables
uint8_t const	fr_base16_alphabet_decode_mc [UINT8_MAX+1]
	Mixed case decode alphabet for base16. More...
char const	fr_base16_alphabet_encode_lc [UINT8_MAX+1]
	Encode/decode binary data using printable characters (base16 format - hex) More...
char const	fr_base16_alphabet_encode_uc [UINT8_MAX+1]
	lower case encode alphabet for base16 More...

Macro Definition Documentation

fr_base16_decode

#define fr_base16_decode	(		_err,
			_out,
			_in,
			_no_trailing
	)		fr_base16_decode_nstd(_err, _out, _in, _no_trailing, fr_base16_alphabet_decode_mc)

Definition at line 95 of file base16.h.

fr_base16_encode

#define fr_base16_encode	(		_out,
			_in
	)		fr_base16_encode_nstd(_out, _in, fr_base16_alphabet_encode_lc)

Definition at line 57 of file base16.h.

Function Documentation

fr_base16_aencode()

static fr_slen_t fr_base16_aencode ( TALLOC_CTX *  ctx, char **  out, fr_dbuff_t *  in  )

inlinestatic

Convert binary data to a hex string, allocating the output buffer.

Ascii encoded hex string will not be prefixed with '0x'

Parameters

[in]	ctx	to allocate the buffer in.
[out]	out	where to write the new buffer.
[in]	in	input.

Returns

• >=0 the number of bytes written to out.
• <0 number of bytes we would have needed to print the next hexit.

Definition at line 71 of file base16.h.

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fr_base16_decode_nstd()

fr_slen_t fr_base16_decode_nstd	(	fr_sbuff_parse_error_t *	err,
		fr_dbuff_t *	out,
		fr_sbuff_t *	in,
		bool	no_trailing,
		uint8_t const	alphabet[static UINT8_MAX+1]
	)

Decode base16 encoded input.

Parameters

[out]	err	If non-null contains any parse errors.
[out]	out	Where to write the decoded binary data.
[in]	in	String to decode.
[in]	no_trailing	Error out if we find non-base16 characters at the end of the string.
[in]	alphabet	to use for decoding.

Returns

• < 0 on failure. The offset where the decoding error occurred as a negative integer.
• Length of decoded data.

Definition at line 65 of file merged_model.c.

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fr_base16_encode_nstd()

fr_slen_t fr_base16_encode_nstd	(	fr_sbuff_t *	out,
		fr_dbuff_t *	in,
		char const	alphabet[static UINT8_MAX+1]
	)

Convert binary data to a hex string.

Ascii encoded hex string will not be prefixed with '0x'

Parameters

[out]	out	Output buffer to write to.
[in]	in	input.
[in]	alphabet	to use for encode.

Returns

• >=0 the number of bytes written to out.
• <0 number of bytes we would have needed to print the next hexit.

Definition at line 56 of file merged_model.c.

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fr_is_base16_nstd()

static bool fr_is_base16_nstd ( char  c, uint8_t const  alphabet[static UINT8_MAX+1]  )

inlinestatic

Check if char is in base16 alphabet.

Parameters

[in]	c	char to check.
[in]	alphabet	to use.

Returns

• true if c is a character from the base32 alphabet.
• false if character is not in the base32 alphabet.

Definition at line 51 of file base16.h.

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Variable Documentation

fr_base16_alphabet_decode_mc

uint8_t const fr_base16_alphabet_decode_mc[UINT8_MAX+1]

extern

Mixed case decode alphabet for base16.

Definition at line 75 of file base16.c.

fr_base16_alphabet_encode_lc

char const fr_base16_alphabet_encode_lc[UINT8_MAX+1]

extern

Encode/decode binary data using printable characters (base16 format - hex)

See also

RFC 4648 http://www.ietf.org/rfc/rfc4648.txt.

Copyright

2021 Arran Cudbard-Bell (a.cud.nosp@m.bard.nosp@m.b@fre.nosp@m.erad.nosp@m.ius.o.nosp@m.rg)

Encode/decode binary data using printable characters (base16 format - hex)

Definition at line 31 of file base16.c.

fr_base16_alphabet_encode_uc

char const fr_base16_alphabet_encode_uc[UINT8_MAX+1]

extern

lower case encode alphabet for base16

Definition at line 53 of file base16.c.