fixed bug found by Lars Poeschel, contest.to = -1 hasend been checked right in do_contest

src/packets.c

@@ -247,13 +247,13 @@ do_contest (struct pkg_contest *ct_pkg, _net_addr * addr)
     if (GT_MP_PTPM) {
 		if ((ct_pkg->from < 0 || ct_pkg->from >= MAX_PLAYERS
 			 || ct_pkg->to < -1 || ct_pkg->to >= MAX_PLAYERS
-			 || addr->pl_nr != ct_pkg->from) {
+			 || addr->pl_nr != ct_pkg->from)) {
 				 d_printf ("     from or to value out of range (0-MAX_PLAYERS)\n");
 				 return;
 		}
 		/* ignore packet it's just a workaround for 
 		 * some hardware router */
-		if ((ct_pkg->to == -1) return; 
+		if (ct_pkg->to == -1) return; 
 
         players[ct_pkg->to].net.flags &= (0xFF - NETF_firewall);
         net_game_send_player (ct_pkg->to);