counting speedup.

git-svn-id: file:///svn/unbound/trunk@986 be551aaa-1e26-0410-a405-d3ace91eadb9

doc/Changelog

@@ -8,6 +8,7 @@
 	- loop check different speedup pkt-dname-reading, 1% faster for
 	  nocache-recursion check.
 	- less hashing during msg parse, 4% for recursion.
+	- small speed fix for dname_count_size_labels, +1 or +2% recursion.
 
 21 February 2008: Wouter
 	- speedup of root-delegation message encoding by 15%.

util/data/dname.c

@@ -370,17 +370,17 @@ dname_count_size_labels(uint8_t* dname, size_t* size)
 {	
 	uint8_t lablen;
 	int labs = 1;
-	*size = 1;
+	size_t sz = 1;
 
 	lablen = *dname++;
 	while(lablen) {
 		labs++;
-		*size += lablen+1;
+		sz += lablen+1;
 		dname += lablen;
 		lablen = *dname++;
 	}
+	*size = sz;
 	return labs;
-
 }
 
 /**