import java.net.InetAddress;
import java.net.DatagramPacket;
import java.net.MulticastSocket;
import java.net.SocketException;
import java.io.IOException;

public class MulticastSniffer {

  public static void main(String[] args) {

    InetAddress ia = null;
    final byte[] buffer = new byte[65509];
    final DatagramPacket dp = new DatagramPacket(buffer, buffer.length);
    int port = 0;

    // read the address from the command line
    try {
      ia = InetAddress.getByName (args[0]);
      port = Integer.parseInt (args[1]);
    } catch (Exception e) {
      System.err.println(e);
      System.err.println("Usage: java MulticastSniffer MulticastAddress port");
      System.exit(1);
    }

    try {
      // missing code
      // missing code
      while (true) {
         // missing code
         final String s = new String(dp.getData(), 0, dp.getLength());
         System.out.println(s);
      }
    } catch (SocketException se) {
      System.err.println(se);
    } catch (IOException ie) {
      System.err.println(ie);
    }
  }
}