libjava/classpath/test/java.net/ClientDatagram.java

   1 /* Class to test Datagrams from a client perspective */
   2
   3 import java.io.*;
   4 import java.net.*;
   5
   6 public class ClientDatagram
   7 {
   8
   9 public static void
  10 main(String[] argv) throws IOException
  11 {
  12   System.out.println("Starting datagram tests");
  13
  14   byte[] buf = new byte[2048];
  15   DatagramPacket p = new DatagramPacket(buf, buf.length);
  16   InetAddress addr = InetAddress.getByName("localhost");
  17
  18   /* Execute the daytime UDP service on localhost.  You may need to
  19      enable this in inetd to make the test work */
  20   System.out.println("Test 1: Simple daytime test");
  21   try
  22     {
  23
  24       DatagramSocket s = new DatagramSocket();
  25
  26       System.out.println("Socket bound to " + s.getLocalAddress() +
  27                          ":" + s.getLocalPort());
  28
  29       byte[] sbuf = { 'H', 'I' };
  30       DatagramPacket spack = new DatagramPacket(sbuf, sbuf.length, addr, 13);
  31
  32       s.send(spack);
  33       s.receive(p);
  34
  35       System.out.println("Received " + p.getLength() + " bytes from " +
  36                          p.getAddress() + ":" + p.getPort());
  37
  38       byte[] tmp = new byte[p.getLength()];
  39       for (int i = 0; i < p.getLength(); i++)
  40         tmp[i] = buf[i];
  41
  42       System.out.print("Data: " + new String(tmp));
  43
  44       s.close();
  45       System.out.println("PASSED simple datagram test");
  46     }
  47   catch(Exception e)
  48     {
  49       System.out.println("FAILED simple datagram test: " + e);
  50     }
  51
  52   System.out.println("Test 2: Specific host/port binding");
  53   try
  54     {
  55       DatagramSocket s = new DatagramSocket(8765, addr);
  56       if (s.getLocalPort() != 8765)
  57         throw new IOException("Bound to wrong port: " + s.getLocalPort());
  58
  59       if (!s.getLocalAddress().equals(addr))
  60         throw new IOException("Bound to wrong host:" + s.getLocalAddress());
  61
  62       s.close();
  63       System.out.println("PASSED specific host/port binding test");
  64     }
  65   catch (Exception e)
  66     {
  67       System.out.println("FAILED specific host/port binding: " + e);
  68     }
  69
  70   System.out.println("Test 3: Socket Options test");
  71   try
  72     {
  73       DatagramSocket s = new DatagramSocket();
  74       System.out.println("SO_TIMEOUT = " + s.getSoTimeout());
  75       System.out.println("Setting SO_TIMEOUT to 170");
  76       s.setSoTimeout(170);
  77       System.out.println("SO_TIMEOUT = " + s.getSoTimeout());
  78       System.out.println("Setting SO_TIMEOUT to 0");
  79       s.setSoTimeout(0);
  80       System.out.println("SO_TIMEOUT = " + s.getSoTimeout());
  81       s.close();
  82     }
  83   catch(Exception e)
  84     {
  85       System.out.println("WARNING: Problem with SO_TIMEOUT test: " + e.getMessage());
  86       System.out.println("This is ok on Linux");
  87     }
  88
  89   System.out.println("Test 4: Max values test");
  90   try
  91     {
  92 //      ServerDatagram sd = new ServerDatagram(37900);
  93 //      sd.run();
  94
  95       DatagramSocket s = new DatagramSocket();
  96       byte[] sbuf = new byte[65332];
  97       DatagramPacket spack = new DatagramPacket(sbuf, sbuf.length,
  98                                                 addr, 37900);
  99
 100       s.send(spack);
 101       s.close();
 102     }
 103   catch (Exception e)
 104     {
 105       System.out.println("FAILED max values test: " + e);
 106     }
 107
 108   System.out.println("Datagram testing complete");
 109 }
 110
 111 }
 112