net.dhcp
Class DHCPSocket

java.lang.Object
  java.net.DatagramSocket
      net.dhcp.DHCPSocket

public class DHCPSocket
extends java.net.DatagramSocket

This class represents a Socket for sending DHCP Messages

Version:

1.1.1 9/06/1999

Author:

Jason Goldschmidt

See Also:

DatagramSocket

Constructor Summary

DHCPSocket(int inPort)
Constructor for creating DHCPSocket on a specific port on the local machine.

Method Summary

int	getMTU() Returns the set MTU for this socket
boolean	receive(DHCPMessage outMessage) Receives a datagram packet containing a DHCP Message into a DHCPMessage object.
void	send(DHCPMessage inMessage) Sends a DHCPMessage object to a predifined host.
void	setMTU(int inSize) Sets the Maximum Transfer Unit for the UDP DHCP Packets to be set.

Methods inherited from class java.net.DatagramSocket

bind, close, connect, connect, disconnect, getBroadcast, getChannel, getInetAddress, getLocalAddress, getLocalPort, getLocalSocketAddress, getPort, getReceiveBufferSize, getRemoteSocketAddress, getReuseAddress, getSendBufferSize, getSoTimeout, getTrafficClass, isBound, isClosed, isConnected, receive, send, setBroadcast, setDatagramSocketImplFactory, setReceiveBufferSize, setReuseAddress, setSendBufferSize, setSoTimeout, setTrafficClass

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

DHCPSocket

public DHCPSocket(int inPort)
           throws java.net.SocketException

Constructor for creating DHCPSocket on a specific port on the local machine.

Parameters:

inPort - the port for the application to bind.

Throws:

java.net.SocketException

Method Detail

setMTU

public void setMTU(int inSize)

Sets the Maximum Transfer Unit for the UDP DHCP Packets to be set. Default is 1500, MTU for Ethernet

Parameters:

inSize - integer representing desired MTU

getMTU

public int getMTU()

Returns the set MTU for this socket

Returns:

the Maximum Transfer Unit set for this socket

send

public void send(DHCPMessage inMessage)
          throws java.io.IOException

Sends a DHCPMessage object to a predifined host.

Parameters:

inMessage - well-formed DHCPMessage to be sent to a server

Throws:

java.io.IOException

receive

public boolean receive(DHCPMessage outMessage)

Receives a datagram packet containing a DHCP Message into a DHCPMessage object.

Parameters:

outMessage - DHCPMessage object to receive new message into

Returns:

true if message is received, false if timeout occurs.