--- a/tcpfwd.h	Tue Mar 15 23:20:40 2016 +0800
+++ b/tcpfwd.h	Fri Mar 18 22:47:33 2016 +0800
@@ -57,16 +57,16 @@
 };
 
 /* Server */
-void recv_msg_global_request_remotetcp();
+void recv_msg_global_request_remotetcp(void);
 
 extern const struct ChanType svr_chan_tcpdirect;
 
 /* Client */
-void setup_localtcp();
-void setup_remotetcp();
+void setup_localtcp(void);
+void setup_remotetcp(void);
 extern const struct ChanType cli_chan_tcpremote;
-void cli_recv_msg_request_success();
-void cli_recv_msg_request_failure();
+void cli_recv_msg_request_success(void);
+void cli_recv_msg_request_failure(void);
 
 /* Common */
 int listen_tcpfwd(struct TCPListener* tcpinfo);