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Host1.java
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47 lines (45 loc) · 2.03 KB
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import java.net.*;
public class Host1 {
public static void main(String[] args) {
try {
DatagramSocket socket = new DatagramSocket();// from ds used for udp
DatagramSocket socket1 = new DatagramSocket(5555);// sent to h2
InetAddress serverAddress = InetAddress.getByName("127.0.0.1");
int serverPort = 9876;
byte[] sendData = new byte[1024];
DatagramPacket sendPacket = new DatagramPacket(sendData, sendData.length, serverAddress, serverPort);
socket.send(sendPacket);
byte[] receiveData = new byte[1024];
String dataFromDS;
int i = 1;
byte[] receiveData1 = new byte[1024];
DatagramPacket receivePacket1 = new DatagramPacket(receiveData1, receiveData1.length);
socket1.receive(receivePacket1);
InetAddress clientAddress = receivePacket1.getAddress();
int clientPort = receivePacket1.getPort();
System.err.println(clientAddress + ":" + clientPort);
do {
DatagramPacket receivePacket = new DatagramPacket(receiveData, receiveData.length);
socket.receive(receivePacket);
dataFromDS = new String(receivePacket.getData(), 0, receivePacket.getLength());
System.out.println("line " + i++ + " : " + dataFromDS);
byte[] dataToHost2 = dataFromDS.getBytes();
DatagramPacket sendPacket1 = new DatagramPacket(dataToHost2, dataToHost2.length, clientAddress,
clientPort);
socket1.send(sendPacket1);
receiveData1 = new byte[1024];
receivePacket1 = new DatagramPacket(receiveData1, receiveData1.length);
socket1.receive(receivePacket1);
if (!dataFromDS.substring(0, 3).equals("end")) {
byte[] valid = new byte[1024];
sendPacket = new DatagramPacket(valid, valid.length, serverAddress, serverPort);
socket.send(sendPacket);
}
} while (!dataFromDS.substring(0, 3).equals("end"));
socket.close();
socket1.close();
} catch (Exception e) {
System.out.println(e);
}
}
}