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author | David Howells <dhowells@redhat.com> | 2014-09-16 17:36:01 +0100 |
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committer | David Howells <dhowells@redhat.com> | 2014-09-16 17:36:01 +0100 |
commit | 53d91c5ce0cb8945b55e8bb54e551cabc51eb28d (patch) | |
tree | a5b0bd8059a4b2c7a564b8eb1aa6c50c9f1996fd | |
parent | 1c9c115ccc76d313f1a9232ffb903de325b64943 (diff) | |
download | linux-stable-53d91c5ce0cb8945b55e8bb54e551cabc51eb28d.tar.gz linux-stable-53d91c5ce0cb8945b55e8bb54e551cabc51eb28d.tar.bz2 linux-stable-53d91c5ce0cb8945b55e8bb54e551cabc51eb28d.zip |
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 <dhowells@redhat.com>
Acked-by: Vivek Goyal <vgoyal@redhat.com>
-rw-r--r-- | include/linux/kernel.h | 1 | ||||
-rw-r--r-- | lib/hexdump.c | 16 |
2 files changed, 17 insertions, 0 deletions
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 @@ -59,6 +59,22 @@ 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 * @len: number of bytes in the @buf |