--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/secureswitools/swisistools/source/sisxlibrary/basefile.cpp	Thu Dec 17 08:51:10 2009 +0200
@@ -0,0 +1,171 @@
+/*
+* 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: 
+* Note: This file may contain code to generate corrupt files for test purposes.
+* Such code is excluded from production builds by use of compiler defines;
+* it is recommended that such code should be removed if this code is ever published publicly.
+*
+*/
+
+
+/**
+ @file 
+ @internalComponent
+ @released
+*/
+
+#include "basefile.h"
+#include "exception.h"
+#include "utils.h"
+#include <stdio.h>
+#include <assert.h>
+#include <malloc.h>
+	// malloc suite used because realloc required
+
+TSISStream::size_type TSISStream::iChunk = 2048;
+	// A magic value which should be related to the probable page size
+
+
+
+TSISStream::TSISStream () :
+		iBuffer (NULL),
+		iSize (0),
+		iOffset (0),
+		iDataLength (0)
+	{
+	}
+
+
+TSISStream::~TSISStream ()
+	{
+	if (iBuffer != NULL)
+		{
+		free (iBuffer);
+		}
+	}
+
+
+
+void TSISStream::reserve (const size_type aSize)
+	{
+	if (iOffset + aSize > iSize)
+		{
+		size_type bloat = ((aSize / iChunk) + 1) * iChunk;
+		iBuffer = reinterpret_cast <TUint8*> (realloc (iBuffer, iSize + bloat));
+		CSISException::ThrowIf (iBuffer == NULL, CSISException::EMemory, "cannot increase stream buffer size");
+		iSize += bloat;
+		}
+	assert (! IsBadWritePtr (iBuffer, iSize));
+	}
+
+
+void TSISStream::read (TUint8* aBuffer, const size_type aSize)
+	{
+	CSISException::ThrowIf (iOffset + aSize > iSize,
+							CSISException::EMemory, 
+							"attempt to read beyond the end of buffer");
+	CSISException::ThrowIf (iOffset + aSize > iDataLength,
+							CSISException::EMemory, 
+							"attempt to read beyond the max write pointer");
+	memcpy (aBuffer, &iBuffer [iOffset], aSize);
+	iOffset += aSize;
+	}
+	
+	 
+void TSISStream::write (const TUint8* aBuffer, const size_type aSize)
+	{
+	reserve (aSize);
+	memcpy (&iBuffer [iOffset], aBuffer, aSize);
+	iOffset += aSize;
+	if (iOffset > iDataLength)
+		{
+		iDataLength = iOffset;
+		}
+	}
+
+void TSISStream::seek (const TSISStream::pos_type aPos, const std::ios_base::seekdir aRel)
+	{
+	TSISStream::pos_type to;
+	switch (aRel)
+		{
+	case std::ios_base::beg :
+		to = aPos;
+		break;
+	case std::ios_base::cur :
+		to = iOffset + aPos;
+		break;
+	case std::ios_base::end :
+		to = iDataLength + aPos;
+		break;
+	default :
+		assert (false);
+		return;
+		}
+	if (to >= iSize)
+		{
+		reserve (to - iSize);
+		}
+	iOffset = to;
+	}
+
+
+bool TSISStream::import (HANDLE aFile, TUint64* filesize)
+	{
+	try {
+		DWORD dwHigh = 0;
+		DWORD dwLow = ::GetFileSize(aFile,&dwHigh);
+		TInt64 size = (dwHigh << 32) | dwLow;
+		reserve (size);
+		if (filesize)
+			{
+			*filesize = size;
+			}
+		size_t obtained = 0;
+		::ReadFile(aFile,iBuffer,size,(DWORD*)&obtained,0);
+		iDataLength = obtained;
+		return (size == obtained);
+		} 
+	catch (...)
+		{
+		return false;
+		}
+	}
+
+
+bool TSISStream::exportfile (HANDLE aFile)
+	{
+	try
+		{
+		size_t written = 0;
+		::WriteFile(aFile,iBuffer,length(),(DWORD*)&written,0);
+		return (written == length ());
+		}
+	catch (...)
+		{
+		return false;
+		}
+	}
+
+void TSISStream::reset ()
+	{
+	if (iBuffer != NULL)
+		{
+		free (iBuffer);
+		iBuffer = NULL;
+		}
+	iSize = 0;
+	iOffset = 0;
+	iDataLength = 0;
+	}
+