44 			error(-1, errno, "socket creation");  in client()
49 			error(-1, errno, "setsockopt(linger)");  in client()
53 			error(-1, errno, "setsockopt(nodelay)");  in client()
59 			error(-1, errno, "inet_pton");  in client()
62 			error(-1, errno, "connect");  in client()
66 			error(-1, errno, "waiting read");  in client()
76 			error(-1, errno, "getsockname");  in client()
96 			error(-1, errno, "accept");  in server()
99 			error(-1, errno, "read");  in server()
119 		error(-1, errno, "signal");  in main()
123 		error(-1, errno, "socket");  in main()
127 		error(-1, errno, "setsockopt");  in main()
135 		error(-1, errno, "bind");  in main()
138 		error(-1, errno, "listen");  in main()
141 		error(-1, errno, "getsockname");  in main()