//package beacon.misc;

import java.net.*;
import java.io.*;

public class MulticastSender {

	public static void main(String[] args) {

		InetAddress ia = null;
		int port = 0;
		byte[] buffer = new byte[10000];

		try {
			ia = InetAddress.getByName(args[0]);
			port = Integer.parseInt(args[1]);
		} catch (Exception e) {
			System.err.println("Usage: <address> <port>");
			System.exit(1);
		}
		
		try {
      String data = "multicast data";
			DatagramPacket dp = new DatagramPacket(data.getBytes(), 0, data.length(),
				ia, port);
			MulticastSocket ms = new MulticastSocket();
			ms.setTimeToLive(10);
			System.out.println("TTL: " + ms.getTimeToLive());
			//ms.setInterface(InetAddress.getByName("eth0"));
			System.out.println("Interface: " + ms.getInterface());
			ms.joinGroup(ia);
			for (int i = 0; i < 20; i++) {
				ms.send(dp);
				System.out.println("sending packet");
			}
		} catch (Exception e) {
			e.printStackTrace();
		}
	}
}