/*

* Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies).

* All rights reserved.

* This component and the accompanying materials are made available

* under the terms of "Eclipse Public License v1.0"

* which accompanies this distribution, and is available

* at the URL "http://www.eclipse.org/legal/epl-v10.html".

*

* Initial Contributors:

* Nokia Corporation - initial contribution.

*

* Contributors:

*

* Description: 

*

*/

#ifndef __CDNSPACKET_H__

#define __CDNSPACKET_H__

#include <e32base.h>

#include <es_sock.h>

#include <in_sock.h>

#include "tdnsheader.h"

#define __OOB(aIndex,aDataLength)     {if(aIndex >= aDataLength)  User::Leave(KErrCorrupt);}

_LIT8(KDot,".");

class CDnsPacket : public CBase

	{

public:

    ~CDnsPacket();

	static CDnsPacket* NewL(const TDes8& aPacketPtr);

	TUint8  GetCharL();

	TUint16 GetInt16L();

	TUint32 GetInt32L();

	const TDnsHeader& GetHeaderL();

	void GetDomainNameL(TDes8& aName);

	void GetRdDomainNameL(TDes8& aDomainName,TUint aLength);

	void GetStringL(TDes8& aString, TUint16 aLength);			

private:

	void ConstructL();

	CDnsPacket(const TDes8& aPacketPtr);

	void GetStringAtIndexL(TDes8& aLabel, TUint aOffset);

	void GetDomainNameAtIndexL(TDes8& aDomainName, TUint aOffset);

private:

	TDnsHeader iHeader;	

	const TUint8* iPtr;

	TUint iIndex;

	TUint iDataLength;

	TUint iMaxLength;

	};

#endif  //__CDNSPACKET_H__