Commit 53d91c5c authored by David Howells's avatar David Howells
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Provide a binary to hex conversion function 



Provide a function to convert a buffer of binary data into an unterminated
ascii hex string representation of that data.

Signed-off-by: default avatarDavid Howells <dhowells@redhat.com>
Acked-by: default avatarVivek Goyal <vgoyal@redhat.com>
parent 1c9c115c

include/linux/kernel.h

+1 −0
Original line number Diff line number Diff line
@@ -500,6 +500,7 @@ static inline char * __deprecated pack_hex_byte(char *buf, u8 byte) 


extern int hex_to_bin(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);



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

lib/hexdump.c

+16 −0
Original line number Diff line number Diff line
@@ -58,6 +58,22 @@ int hex2bin(u8 *dst, const char *src, size_t count) 
}

EXPORT_SYMBOL(hex2bin);



/**

 * bin2hex - convert binary data to an ascii hexadecimal string

 * @dst: ascii hexadecimal result

 * @src: binary data

 * @count: binary data length

 */

char *bin2hex(char *dst, const void *src, size_t count)

{

	const unsigned char *_src = src;



	while (count--)

		dst = hex_byte_pack(dst, *_src++);

	return dst;

}

EXPORT_SYMBOL(bin2hex);



/**

 * hex_dump_to_buffer - convert a blob of data to "hex ASCII" in memory

 * @buf: data blob to dump