Cregit: Linux 6.9: hex.h

Contributors: 10
Author	Tokens	Token Proportion	Commits	Commit Proportion
Andy Shevchenko	128	70.33%	2	12.50%
Mimi Zohar	21	11.54%	2	12.50%
David Howells	11	6.04%	1	6.25%
Linus Torvalds (pre-git)	8	4.40%	3	18.75%
Alexey Dobriyan	6	3.30%	2	12.50%
Steven Rostedt	3	1.65%	2	12.50%
Martin Waitz	2	1.10%	1	6.25%
Peter Zijlstra	1	0.55%	1	6.25%
Greg Kroah-Hartman	1	0.55%	1	6.25%
Joe Perches	1	0.55%	1	6.25%
Total	182		16

/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _LINUX_HEX_H
#define _LINUX_HEX_H

#include <linux/types.h>

extern const char hex_asc[];
#define hex_asc_lo(x)	hex_asc[((x) & 0x0f)]
#define hex_asc_hi(x)	hex_asc[((x) & 0xf0) >> 4]

static inline char *hex_byte_pack(char *buf, u8 byte)
{
	*buf++ = hex_asc_hi(byte);
	*buf++ = hex_asc_lo(byte);
	return buf;
}

extern const char hex_asc_upper[];
#define hex_asc_upper_lo(x)	hex_asc_upper[((x) & 0x0f)]
#define hex_asc_upper_hi(x)	hex_asc_upper[((x) & 0xf0) >> 4]

static inline char *hex_byte_pack_upper(char *buf, u8 byte)
{
	*buf++ = hex_asc_upper_hi(byte);
	*buf++ = hex_asc_upper_lo(byte);
	return buf;
}

extern int hex_to_bin(unsigned char ch);
extern int __must_check hex2bin(u8 *dst, const char *src, size_t count);
extern char *bin2hex(char *dst, const void *src, size_t count);

bool mac_pton(const char *s, u8 *mac);

#endif