com.antiaction.dns.record
Class DNSRDataNULL

java.lang.Object
  |
  +--com.antiaction.dns.record.DNSRDataNULL

All Implemented Interfaces:

java.lang.Cloneable, DNSRDataInterface

public class DNSRDataNULL

extends java.lang.Object

implements DNSRDataInterface

DNS NULL record container. As defined in rfc1035.

Version:

2.00

Author:

Nicholas Clarke

Field Summary

protected byte[]	genericData Array of data.
protected static int	rtype Record of type NULL.

Constructor Summary

DNSRDataNULL()
Instantiate and initialize a default NULL record object.

Method Summary

byte[]	buildPacket(DNSName dnsname, int globalIdx) Build and return the rdata packet on the internal state.
java.lang.Object	clone() Overrides Cloneable.
void	disassemblePacket(DNSName dnsname, byte[] pDat, int pIdx, int pLen) Parses the rdata part of a record.
byte[]	getData() Get the generic data of this record.
int	getDisassembledLen() Returns the length of the previously disassembled rdata part.
int	getRType() Get the record type.
void	setData(byte[] data) Set the generic data of this record.
void	setDebug(boolean b) Toggle debug status.
java.lang.String	toString() Returns a string representation of the internal state, mostly for debugging purposes.

Methods inherited from class java.lang.Object

equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Detail

rtype

protected static int rtype

Record of type NULL.

genericData

protected byte[] genericData

Array of data.

Constructor Detail

DNSRDataNULL

public DNSRDataNULL()

Instantiate and initialize a default NULL record object.

Method Detail

clone

public java.lang.Object clone()

Overrides Cloneable.

Specified by:

clone in interface DNSRDataInterface

Overrides:

clone in class java.lang.Object

Returns:

a clone of this instance.

Throws:

OutOfMemoryError - if there is not enough memory.

See Also:

Cloneable

setDebug

public void setDebug(boolean b)

Toggle debug status.

Specified by:

setDebug in interface DNSRDataInterface

Parameters:

b - boolean.

buildPacket

public byte[] buildPacket(DNSName dnsname,
                          int globalIdx)
                   throws DNSNameException

Build and return the rdata packet on the internal state.

Specified by:

buildPacket in interface DNSRDataInterface

Parameters:

dnsname - used for domain name compression in the same message.

globalIdx - current index of the message being assembled. (Domain name compression)

Returns:

the rdata part of the message as a byte array.

Throws:

DNSNameException - if the domain name is invalid.

getDisassembledLen

public int getDisassembledLen()

Returns the length of the previously disassembled rdata part.

Specified by:

getDisassembledLen in interface DNSRDataInterface

See Also:

disassemblePacket(DNSName, byte[], int, int)

disassemblePacket

public void disassemblePacket(DNSName dnsname,
                              byte[] pDat,
                              int pIdx,
                              int pLen)
                       throws DNSNameException,
                              DNSRDataException

Parses the rdata part of a record.

Specified by:

disassemblePacket in interface DNSRDataInterface

Parameters:

dnsname - used for domain name compression in the same message.

pDat - array containing the complete packet.

pIdx - index to where in the array the rdata part begins.

pLen - length of the whole packet.

Throws:

DNSRDataException - if the packet is corrupted.

DNSNameException - if the domain name is invalid.

See Also:

getDisassembledLen()

getRType

public int getRType()

Get the record type.

Specified by:

getRType in interface DNSRDataInterface

Returns:

record type.

setData

public void setData(byte[] data)

Set the generic data of this record.

Parameters:

data - raw byte array.

getData

public byte[] getData()

Get the generic data of this record.

Returns:

raw byte array.

toString

public java.lang.String toString()

Returns a string representation of the internal state, mostly for debugging purposes.

Specified by:

toString in interface DNSRDataInterface

Overrides:

toString in class java.lang.Object

Returns:

debug string.