imgtools/imgcheck/libimgutils/src/rofsimage.cpp
author Iain Williamson <iain.williamson@nokia.com>
Thu, 25 Feb 2010 13:00:01 +0000
branchfix
changeset 274 c72bd1c6fd4e
parent 0 044383f39525
child 590 360bd6b35136
permissions -rw-r--r--
Merge - OST v2 in test code
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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/*
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* Copyright (c) 2007-2009 Nokia Corporation and/or its subsidiary(-ies).
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* All rights reserved.
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* This component and the accompanying materials are made available
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* under the terms of the License "Eclipse Public License v1.0"
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* which accompanies this distribution, and is available
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* at the URL "http://www.eclipse.org/legal/epl-v10.html".
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*
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* Initial Contributors:
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* Nokia Corporation - initial contribution.
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*
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* Contributors:
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*
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* Description: 
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*
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*/
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/**
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 @file
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 @internalComponent
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 @released
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*/
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#include "typedefs.h"
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#include "rofsimage.h"
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/** 
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Constructor.
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@internalComponent
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@released
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@param aReader - image reader pointer
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*/
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RofsImage::RofsImage(RCoreImageReader *aReader)
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: CCoreImage(aReader) ,
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iRofsHeader(0), iRofsExtnHeader(0),iAdjustment(0), 
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iImageType((RCoreImageReader::TImageType)0)
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{
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}
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/** 
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Destructor deletes iRofsHeader and iRofsExtnHeader.
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@internalComponent
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@released
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@param aReader - image reader pointer
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*/
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RofsImage::~RofsImage()
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{
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	DELETE(iRofsHeader);
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	DELETE(iRofsExtnHeader);
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}
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/** 
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Function responsible to read the ROFS image and to construct the tree for the 
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elements available in Directory section.
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@internalComponent
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@released
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@return - returns the error code
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*/
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TInt RofsImage::ProcessImage()
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{
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	int result = CreateRootDir();
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	if (result == KErrNone)
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	{
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		if (iReader->Open())
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		{
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			iImageType = iReader->ReadImageType();
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			if (iImageType == RCoreImageReader::E_ROFS)
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			{
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				iRofsHeader = new TRofsHeader;
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				result = iReader->ReadCoreHeader(*iRofsHeader);
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				if (result != KErrNone)
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					return result;
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				SaveDirInfo(*iRofsHeader);
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				result = ProcessDirectory(0);
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			}
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			else if (iImageType == RCoreImageReader::E_ROFX)
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			{
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				iRofsExtnHeader = new TExtensionRofsHeader ;
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				result = iReader->ReadExtensionHeader(*iRofsExtnHeader);
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				if(result != KErrNone)
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					return result;
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				long filePos = iReader->FilePosition();
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				iAdjustment = iRofsExtnHeader->iDirTreeOffset - filePos;
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				SaveDirInfo(*iRofsExtnHeader);
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				result = ProcessDirectory(iAdjustment);
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			}
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			else
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			{
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				result = KErrNotSupported;
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			}
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		}
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		else
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		{
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			result = KErrGeneral;
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		}
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	}
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	return result;
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}