+@@ -79,6 +79,7 @@ static int in_cksum(unsigned short *buf,
+ /* simple version */
+
+ static char *hostname;
++static unsigned datalen = DEFDATALEN;
+
+ static void noresp(int ign UNUSED_PARAM)
+ {
+@@ -91,7 +92,7 @@ static void ping4(len_and_sockaddr *lsa)