diff options
Diffstat (limited to 'lib/hexdump.c')
| -rw-r--r-- | lib/hexdump.c | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/lib/hexdump.c b/lib/hexdump.c index 5d7a4802c56..f5fe6ba7a3a 100644 --- a/lib/hexdump.c +++ b/lib/hexdump.c @@ -34,6 +34,22 @@ int hex_to_bin(char ch) EXPORT_SYMBOL(hex_to_bin); /** + * hex2bin - convert an ascii hexadecimal string to its binary representation + * @dst: binary result + * @src: ascii hexadecimal string + * @count: result length + */ +void hex2bin(u8 *dst, const char *src, size_t count) +{ + while (count--) { + *dst = hex_to_bin(*src++) << 4; + *dst += hex_to_bin(*src++); + dst++; + } +} +EXPORT_SYMBOL(hex2bin); + +/** * 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 @@ -138,6 +154,7 @@ nil: } EXPORT_SYMBOL(hex_dump_to_buffer); +#ifdef CONFIG_PRINTK /** * print_hex_dump - print a text hex dump to syslog for a binary blob of data * @level: kernel log level (e.g. KERN_DEBUG) @@ -222,3 +239,4 @@ void print_hex_dump_bytes(const char *prefix_str, int prefix_type, buf, len, true); } EXPORT_SYMBOL(print_hex_dump_bytes); +#endif |