The main program that drives this network client.
if (argv.length < 1) {
System.err.println("usage: java DayTimeUDP host");
System.exit(1);
}
String host = argv[0];
InetAddress servAddr = InetAddress.getByName(host);
DatagramSocket sock = new DatagramSocket();
//sock.connect(servAddr, DAYTIME_PORT);
byte[] buffer = new byte[PACKET_SIZE];
// The udp packet we will send and receive
DatagramPacket packet = new DatagramPacket(
buffer, PACKET_SIZE, servAddr, DAYTIME_PORT);
/* Send empty max-length (-1 for null byte) packet to server */
packet.setLength(PACKET_SIZE-1);
sock.send(packet);
Debug.println("net", "Sent request");
// Receive a packet and print it.
sock.receive(packet);
Debug.println("net", "Got packet of size " + packet.getLength());
System.out.print("Date on " + host + " is " +
new String(buffer, 0, packet.getLength()));
