From 53d91c5ce0cb8945b55e8bb54e551cabc51eb28d Mon Sep 17 00:00:00 2001 From: David Howells Date: Tue, 16 Sep 2014 17:36:01 +0100 Subject: [PATCH] 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: David Howells Acked-by: Vivek Goyal --- include/linux/kernel.h | 1 + lib/hexdump.c | 16 ++++++++++++++++ 2 files changed, 17 insertions(+) diff --git a/include/linux/kernel.h b/include/linux/kernel.h index 4c52907a6d8b..89a0b8e5a952 100644 --- a/include/linux/kernel.h +++ b/include/linux/kernel.h @@ -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); diff --git a/lib/hexdump.c b/lib/hexdump.c index 8499c810909a..270773b91923 100644 --- a/lib/hexdump.c +++ b/lib/hexdump.c @@ -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