diff --git a/src/capwap/format.c b/src/capwap/format.c
index 01820335..c784d7e8 100644
--- a/src/capwap/format.c
+++ b/src/capwap/format.c
@@ -15,6 +15,8 @@
along with Foobar. If not, see .
*/
+
+
/**
* @file
* @brief Implementation of various format functions.
@@ -57,5 +59,54 @@ int cw_format_hex_bytes(char *dst, const char *format, const char *delim,
+/**
+ * Read hex bytes from a string to an uint8_t array
+ * @param dst destination array
+ * @param s string to read
+ * @param len length of string
+ * @return 0 if all was ok \n 1 if an error has occured.
+ */
+
+int cw_format_scan_hex_bytes(uint8_t *dst,const char *s, int len)
+{
+ int rc ;
+ int err=0;
+ int val;
+ int c;
+ int i;
+
+ if ( len & 1){
+ rc = sscanf(s,"%01X",&c);
+ if (rc!=1){
+ c=0;
+ err=1;
+ }
+ *dst++=c;
+ s++;
+ len--;
+ }
+
+
+ for (i=0; i