// TCP simplex-talk CLIENT in java
 
 import java.net.*;      
 import java.io.*;
 
 public class stalkc {
 
     static public BufferedReader bin;
     static public int destport = 5431;
 
     static public void main(String args[]) {
         String desthost = "localhost";
         if (args.length >= 1) desthost = args[0];
         bin = new BufferedReader(new InputStreamReader(System.in));
 
         InetAddress dest;
         System.err.print("Looking up address of " + desthost + "...");
         try {
             dest = InetAddress.getByName(desthost);
         }
         catch (UnknownHostException uhe) {
             System.err.println("unknown host: " + desthost);
             return;
         }
         System.err.println(" got it!");
 
         System.err.println("connecting to port " + destport);
         Socket s;
         try {
             s = new Socket(dest, destport);
         }
         catch(IOException ioe) {
             System.err.println("cannot connect to <" + desthost + "," + destport + ">");
             return;
         }
 
         OutputStream sout;
         try {
             sout = s.getOutputStream();
         }
         catch (IOException ioe) {
             System.err.println("I/O failure!");
             return;
         }
 
         //============================================================
 
         while (true) {
             String buf;
             try {
                 buf = bin.readLine();
             }
             catch (IOException ioe) {
                 System.err.println("readLine() failed");
                 return;
             }
             if (buf == null) break;     // user typed EOF character
 
             buf = buf + "\n";          // protocol requires sender includes \n
             byte[] bbuf = buf.getBytes();
 
             try {
                 sout.write(bbuf);
             }
             catch (IOException ioe) {
                 System.err.println("write() failed");
                 return;
             }
         } // while
     }
 }