diff options
| author | David Howells <dhowells@redhat.com> | 2014-09-16 17:36:01 +0100 |
|---|---|---|
| committer | Mister Oyster <oysterized@gmail.com> | 2017-12-22 16:23:43 +0100 |
| commit | 6e3d2e279cd5ac2fddec491fe83a8ef5366e95ef (patch) | |
| tree | feb38a133059429fb86c31fa0dd5d0dd73f4ab74 | |
| parent | 5bf44aaf5cc90f45b4f0e6e57c01bdd6735df392 (diff) | |
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 78af19954..2798aa467 100644 --- a/include/linux/kernel.h +++ b/include/linux/kernel.h @@ -473,6 +473,7 @@ 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); /* * General tracing related utility functions - trace_printk(), diff --git a/lib/hexdump.c b/lib/hexdump.c index 8499c8109..270773b91 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 |