aboutsummaryrefslogtreecommitdiffstats
path: root/lib/hexdump.c
diff options
context:
space:
mode:
authorMimi Zohar <zohar@linux.vnet.ibm.com>2010-11-23 22:50:31 (GMT)
committerJames Morris <jmorris@namei.org>2010-11-28 21:55:11 (GMT)
commitdc88e46029486ed475c71fe1bb696d39511ac8fe (patch)
tree75f5bbf30480d4126315211ea6fb3af395e5f09c /lib/hexdump.c
parentce6ada35bdf710d16582cc4869c26722547e6f11 (diff)
lib: hex2bin converts ascii hexadecimal string to binary
Similar to the kgdb_hex2mem() code, hex2bin converts a string to binary using the hex_to_bin() library call. Changelog: - Replace parameter names with src/dst (based on David Howell's comment) - Add 'const' where needed (based on David Howell's comment) - Replace int with size_t (based on David Howell's comment) Signed-off-by: Mimi Zohar <zohar@us.ibm.com> Acked-by: Serge E. Hallyn <serge@hallyn.com> Acked-by: David Howells <dhowells@redhat.com> Signed-off-by: James Morris <jmorris@namei.org>
Diffstat (limited to 'lib/hexdump.c')
-rw-r--r--lib/hexdump.c16
1 files changed, 16 insertions, 0 deletions
diff --git a/lib/hexdump.c b/lib/hexdump.c
index 5d7a480..b66b2bd 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

Privacy Policy