com.antiaction.dns.record
Class DNSRDataCName

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

All Implemented Interfaces:

java.lang.Cloneable, DNSRDataInterface

public class DNSRDataCName

extends java.lang.Object

implements DNSRDataInterface

DNS CName Record container. As defined in rfc1035.

Version:

2.00

Author:

Nicholas Clarke

Field Summary

protected java.lang.String	name Exchange.
protected static int	rtype Record of type CNAME.

Constructor Summary

DNSRDataCName()
Instantiate and initialize a default CName 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.
java.lang.String	getCName() Get the domain name of this record.
int	getDisassembledLen() Returns the length of the previously disassembled rdata part.
int	getRType() Get the record type.
void	setCName(java.lang.String name) Set the domain name 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 CNAME.

name

protected java.lang.String name

Exchange.

Constructor Detail

DNSRDataCName

public DNSRDataCName()

Instantiate and initialize a default CName 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.

setCName

public void setCName(java.lang.String name)

Set the domain name of this record.

Parameters:

name - domain name.

getCName

public java.lang.String getCName()

Get the domain name of this record.

Returns:

domain name.

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.