imgtools/imgcheck/libimgutils/src/rofsimage.cpp
changeset 0 044383f39525
child 590 360bd6b35136
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/imgtools/imgcheck/libimgutils/src/rofsimage.cpp	Tue Oct 27 16:36:35 2009 +0000
@@ -0,0 +1,108 @@
+/*
+* Copyright (c) 2007-2009 Nokia Corporation and/or its subsidiary(-ies).
+* All rights reserved.
+* This component and the accompanying materials are made available
+* under the terms of the License "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: 
+*
+*/
+
+
+/**
+ @file
+ @internalComponent
+ @released
+*/
+
+#include "typedefs.h"
+#include "rofsimage.h"
+
+/** 
+Constructor.
+
+@internalComponent
+@released
+
+@param aReader - image reader pointer
+*/
+RofsImage::RofsImage(RCoreImageReader *aReader)
+: CCoreImage(aReader) ,
+iRofsHeader(0), iRofsExtnHeader(0),iAdjustment(0), 
+iImageType((RCoreImageReader::TImageType)0)
+{
+}
+
+/** 
+Destructor deletes iRofsHeader and iRofsExtnHeader.
+
+@internalComponent
+@released
+
+@param aReader - image reader pointer
+*/
+RofsImage::~RofsImage()
+{
+	DELETE(iRofsHeader);
+	DELETE(iRofsExtnHeader);
+}
+
+/** 
+Function responsible to read the ROFS image and to construct the tree for the 
+elements available in Directory section.
+
+@internalComponent
+@released
+
+@return - returns the error code
+*/
+TInt RofsImage::ProcessImage()
+{
+	int result = CreateRootDir();
+	if (result == KErrNone)
+	{
+		if (iReader->Open())
+		{
+			iImageType = iReader->ReadImageType();
+			if (iImageType == RCoreImageReader::E_ROFS)
+			{
+				iRofsHeader = new TRofsHeader;
+				result = iReader->ReadCoreHeader(*iRofsHeader);
+				if (result != KErrNone)
+					return result;
+				
+				SaveDirInfo(*iRofsHeader);
+				result = ProcessDirectory(0);
+			}
+			else if (iImageType == RCoreImageReader::E_ROFX)
+			{
+				iRofsExtnHeader = new TExtensionRofsHeader ;
+				result = iReader->ReadExtensionHeader(*iRofsExtnHeader);
+				if(result != KErrNone)
+					return result;
+
+				long filePos = iReader->FilePosition();
+				iAdjustment = iRofsExtnHeader->iDirTreeOffset - filePos;
+
+				SaveDirInfo(*iRofsExtnHeader);
+				result = ProcessDirectory(iAdjustment);
+			}
+			else
+			{
+				result = KErrNotSupported;
+			}
+		}
+		else
+		{
+			result = KErrGeneral;
+		}
+	}
+	return result;
+}