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Provide a binary to hex conversion function

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

Signed-off-by: David Howells <dhowells@redhat.com>
Acked-by: Vivek Goyal <vgoyal@redhat.com>
This commit is contained in:
David Howells 2014-09-16 17:36:01 +01:00
parent 1c9c115ccc
commit 53d91c5ce0
2 changed files with 17 additions and 0 deletions
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1
include/linux/kernel.h
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@ -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);

16
lib/hexdump.c
View File

@ -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