/*

* 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 __IN_ICMP_H__

#define __IN_ICMP_H__

#include "in_ip.h"

class ThdrICMP_Echo

{

public:

	inline static ThdrICMP_Echo* Ptr(ThdrICMP* aHdr);

	inline TUint16 NetGetId();

	inline void NetSetId(TUint16 aId);

	inline TInt GetId();

	inline void SetId(TUint16 aId);

	inline TUint16 NetGetSeq();

	inline void NetSetSeq(TUint16 aSeq);

	inline TInt GetSeq();

	inline void SetSeq(TUint16 aSeq);

protected:

	union

		{

		TUint8	iData8[8];

		TUint16	iData16[4];

		TUint32	iData32[2];

		} u;

};

// specific for ECHO calls. (id and seq fields)

//Net order

inline TUint16 ThdrICMP_Echo::NetGetId()

	{ return u.iData16[2]; }

inline void ThdrICMP_Echo::NetSetId(TUint16 aId)

	{ u.iData16[2] = aId; }

//Host order

inline TInt ThdrICMP_Echo::GetId()

	{ 

	return (u.iData8[4] << 8) + u.iData8[5];}

inline void ThdrICMP_Echo::SetId(TUint16 aId)

	{

		u.iData8[4] = (TUint8)(aId >> 8);

		u.iData8[5] = (TUint8)aId;

	}

//Net order

inline TUint16 ThdrICMP_Echo::NetGetSeq()

	{ return u.iData16[3]; }

inline void ThdrICMP_Echo::NetSetSeq(TUint16 aSeq)

	{ u.iData16[3] = aSeq; }

//Host order

inline TInt ThdrICMP_Echo::GetSeq()

	{ return (u.iData8[6] << 8) + u.iData8[7];}

inline void ThdrICMP_Echo::SetSeq(TUint16 aSeq)

	{

		u.iData8[6] = (TUint8)(aSeq >> 8);

		u.iData8[7] = (TUint8)aSeq;

	}

#endif