--- a/network_udp.c	Sun Oct 16 14:12:21 2005 +0000
+++ b/network_udp.c	Sun Oct 16 15:00:22 2005 +0000
@@ -353,7 +353,7 @@
 #ifndef BEOS_NET_SERVER
 		ioctlsocket(*udp, FIONBIO, &blocking);
 #else
-		setsockopt(*upd, SOL_SOCKET, SO_NONBLOCK, &blocking);
+		setsockopt(*udp, SOL_SOCKET, SO_NONBLOCK, &blocking, NULL);
 #endif
 	}