make host access controls case insensitive

util.c

@@ -531,3 +531,15 @@ void glob_expand(char **argv, int *argc, int maxargs)
 	(*argc) += i;
 #endif
 }
+
+
+/*******************************************************************
+  convert a string to lower case
+********************************************************************/
+void strlower(char *s)
+{
+	while (*s) {
+		if (isupper(*s)) *s = tolower(*s);
+		s++;
+	}
+}