/*

* Copyright (c) 2006-2006 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:  Class with implementation of xmlenc padding.

*

*/

#include "xmlsecc_padding.h"

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

// Two phase constructor

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

//   

CXmlSecPadding* CXmlSecPadding::NewLC(TInt aBlockBytes)

    {

    CXmlSecPadding* self = new (ELeave) CXmlSecPadding(aBlockBytes);

    CleanupStack::PushL(self);

    return self;

    }

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

// Two phase constructor

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

// 

CXmlSecPadding* CXmlSecPadding::NewL(TInt aBlockBytes)

    {

    CXmlSecPadding* self = CXmlSecPadding::NewLC(aBlockBytes);

    CleanupStack::Pop(self);

    return self;

    }

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

// Constructor

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

// 

CXmlSecPadding::CXmlSecPadding(TInt aBlockBytes) : CPadding(aBlockBytes)

    {

    }

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

// Constructor

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

// 

void CXmlSecPadding::DoPadL(const TDesC8& aInput,TDes8& aOutput)

    {

    TInt padLength = BlockSize() - aInput.Length();

    aOutput.Append(aInput);

    aOutput.AppendFill( (TChar)padLength, padLength );

    }

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

// Add pad to buffer

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

// 

void CXmlSecPadding::UnPadL(const TDesC8& aInput,TDes8& aOutput)

    {

    TInt padLength = (TInt) aInput[ BlockSize()-1 ];

    aOutput.Copy( aInput.Left( BlockSize() - padLength ) );

    }

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

// Remove pad

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

// 

TInt CXmlSecPadding::MinPaddingLength(void) const

    {

    return KMinPaddingLenght;

    }