/*

* Copyright (c) 2003 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:  

*

*/

#include "localaddrresolver.h"

// -----------------------------------------------------------------------------

// CLocalAddrResolver::NewL

// -----------------------------------------------------------------------------

//

CLocalAddrResolver* CLocalAddrResolver::NewL( RSocketServ& aServer )

	{

	CLocalAddrResolver* self = NewLC( aServer );

	CleanupStack::Pop();

	return self;	

	}

// -----------------------------------------------------------------------------

// CLocalAddrResolver::NewLC

// -----------------------------------------------------------------------------

//

CLocalAddrResolver* CLocalAddrResolver::NewLC( RSocketServ& aServer )

	{

	CLocalAddrResolver* self = new (ELeave)CLocalAddrResolver(aServer);

	CleanupStack::PushL(self);

	self->ConstructL();

	return self;	

	}

// -----------------------------------------------------------------------------

// CLocalAddrResolver::ConstructL

// -----------------------------------------------------------------------------

//

void CLocalAddrResolver::ConstructL()

	{

	}

// -----------------------------------------------------------------------------

// CLocalAddrResolver::SetAddr

// -----------------------------------------------------------------------------

//

void CLocalAddrResolver::SetAddr( TInetAddr& aTarget, TInetAddr& aSource )

    {

    if ( aSource.Family() == KAfInet6 )

        {

        if(!aSource.IsLinkLocal())

			{

			aTarget = aSource;

			aTarget.SetScope(0);

			}

        }

    else

        {

        aTarget = aSource;

        aTarget.SetScope(0);

        }

    }

// -----------------------------------------------------------------------------

// CLocalAddrResolver::CheckAndSetAddr

// -----------------------------------------------------------------------------

//

void CLocalAddrResolver::CheckAndSetAddr( TInetAddr& aTarget,

                                          TInetAddr& aCandidate,

                                          TUint32 aCandidateIap,

				                          TUint32 aSpecifiedIap )

    {

    if ( !aCandidate.IsUnspecified() && !aCandidate.IsLoopback() )

        {

        if ( aCandidate.IsV4Mapped())

            {

            aCandidate.ConvertToV4();

            }

        if ( aCandidateIap == aSpecifiedIap )

            {

            SetAddr( aTarget, aCandidate );

            }

        }

    }				                          

// -----------------------------------------------------------------------------

// CLocalAddrResolver::GetLocalAddrL

// -----------------------------------------------------------------------------

//

void CLocalAddrResolver::GetLocalAddrL(TInetAddr& aAddr, TUint32 aIap)

	{

	RSocket socket;

	User::LeaveIfError( socket.Open( *iServer, KAfInet, KSockDatagram, 

		                             KProtocolInetUdp ) );

	if (socket.SetOpt( KSoInetEnumInterfaces, KSolInetIfCtrl ) == KErrNone )

		{

		TPckgBuf<TSoInetInterfaceInfo> opt;

		while ( socket.GetOpt( KSoInetNextInterface, KSolInetIfCtrl, opt ) == KErrNone)

			{

			TPckgBuf<TSoInetIfQuery> optifquery;

			optifquery().iName = opt().iName;

			if(socket.GetOpt( KSoInetIfQueryByName, KSolInetIfQuery, optifquery ) == KErrNone)

				{

				CheckAndSetAddr( aAddr, ( TInetAddr& )opt().iAddress,

				                 optifquery().iZone[1], aIap );

				}

			}

		}

	socket.Close();

	}

// -----------------------------------------------------------------------------

// CLocalAddrResolver::~CLocalAddrResolver

// -----------------------------------------------------------------------------

//

CLocalAddrResolver::~CLocalAddrResolver()

	{

	}

// -----------------------------------------------------------------------------

// CLocalAddrResolver::CLocalAddrResolver

// -----------------------------------------------------------------------------

//

CLocalAddrResolver::CLocalAddrResolver(RSocketServ& aServer) : 

	iServer(&aServer)

	{

	}