/* * Java Network Programming, Second Edition * Merlin Hughes, Michael Shoffner, Derek Hamner * Manning Publications Company; ISBN 188477749X * * http://nitric.com/jnp/ * * Copyright (c) 1997-1999 Merlin Hughes, Michael Shoffner, Derek Hamner; * all rights reserved; see license.txt for details. */package record;import java.io.*;import java.net.*;import DNSRR;import DNSInputStream;public class WellKnownServices extends DNSRR {  private int[] ipAddress = new int[4];  private int protocol;  private byte[] data;  protected void decode (DNSInputStream dnsIn) throws IOException {    for (int j = 0; j < 4; ++ j)      ipAddress[j] = dnsIn.readByte ();    protocol = dnsIn.readByte ();    data = new byte[dnsIn.available ()];    dnsIn.read (data);  }  public byte[] getAddress () {    byte[] ip = new byte[4];    for (int j = 0; j < 4; ++ j)      ip[j] = (byte) ipAddress[j];    return ip;  }  public InetAddress getInetAddress () throws UnknownHostException {    return InetAddress.getByName (toByteString ());  }  public int getProtocol () {    return protocol;  }  public byte[] getData () {    byte[] copy = new byte[data.length];    System.arraycopy (data, 0, copy, 0, data.length);    return copy;  }  private String toByteString () {    return ipAddress[0] + "." + ipAddress[1] + "." +      ipAddress[2] + "." + ipAddress[3];  }  public String toString () {    StringBuffer services = new StringBuffer ();    for (int i = data.length - 1; i >= 0; -- i)      for (int j = 7; j >= 0; -- j)	services.append ((data[i] >>> j) & 1);    return getRRName () + "\twell-known services" +      "\n\taddress = " + toByteString () +      "\n\tprotocol = " + protocol +      "\n\tservices = %" + services;  }}