hex.h

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/* 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