we use closesocket to close a socket in windows now.

src/udp.c

@@ -1,4 +1,4 @@
-/* $Id: udp.c,v 1.11 2004/01/06 19:52:02 stpohle Exp $ */
+/* $Id: udp.c,v 1.12 2004/11/29 09:45:53 stpohle Exp $ */
 /* udp.c code for the network
 	File Version 0.2
 */
@@ -47,7 +47,11 @@ void
 udp_close (int sock)
 {
     if (sock != -1)
+#ifdef _WIN32
+		closesocket(sock);
+#else
         close (sock);
+#endif
     sock = -1;
 };