--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/compressionlibs/ziplib/src/ezlib/zstream.cpp	Tue Feb 02 02:01:42 2010 +0200
@@ -0,0 +1,117 @@
+// Copyright (c) 2003-2009 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 <ezstream.h>
+
+CEZZStream::CEZZStream() : iOutputPointer(NULL), iOutputBufferLength(0)
+	{
+
+	}
+
+/**
+Set the stream's input buffer
+
+@param aInputData the input buffer for this stream
+*/
+EXPORT_C void CEZZStream::SetInput(const TDesC8& aInputData)
+	{	
+	iStream.avail_in = aInputData.Size();
+	iStream.next_in = STATIC_CAST(Bytef* ,CONST_CAST(TUint8 *,aInputData.Ptr()));
+	}
+
+/**
+Set the stream's output buffer
+
+@param aOutputData the output buffer for this stream
+*/
+EXPORT_C void CEZZStream::SetOutput(TDes8& aOutputData)
+	{
+	iOutputPointer = STATIC_CAST(Bytef* ,CONST_CAST(TUint8 *,aOutputData.Ptr()));
+	iOutputBufferLength = aOutputData.MaxSize();
+	iStream.avail_out = iOutputBufferLength;
+	iStream.next_out = iOutputPointer;
+	}
+
+/**
+Return the progress of the current operation - that is the percentage of bytes written / read
+
+@param aTotalLength the total number of bytes to read / write
+@return the progress as a percentage - the number of bytes written / read out of the total target
+*/
+EXPORT_C TInt CEZZStream::Progress(TInt aTotalLength) const
+	{
+	return (aTotalLength == 0) ? 100 : ((iStream.total_in  * 100) / aTotalLength);
+	}
+
+/**
+Return the total number of bytes output so far
+
+@return the total number of bytes output so far
+*/
+EXPORT_C TInt CEZZStream::TotalOut() const
+	{
+	return iStream.total_out;
+	}
+
+/**
+Return the total number of input bytes read so far
+
+@return the total number of input bytes read so far
+*/
+EXPORT_C TInt CEZZStream::TotalIn() const
+	{
+	return iStream.total_in;
+	}
+
+/**
+Return the value of the uncompressed data
+
+@return the value of the uncompressed data
+*/
+EXPORT_C TInt32 CEZZStream::Adler32() const
+	{
+	return iStream.adler;
+	}
+
+/**
+Return the number of bytes available at the next input byte
+
+@return the number of bytes available at the next input byte
+*/
+EXPORT_C TInt CEZZStream::AvailIn() const
+	{
+	return iStream.avail_in;
+	}
+
+/**
+Return the remaining free space at next output byte target
+
+@return the remaining free space at next output byte target
+*/
+EXPORT_C TInt CEZZStream::AvailOut() const
+	{
+	return iStream.avail_out;
+	}
+
+/**
+Return a decriptor pointer to the output buffer
+
+@return a decriptor pointer to the output buffer
+*/
+EXPORT_C TPtrC8 CEZZStream::OutputDescriptor() const
+	{
+	return TPtrC8(iOutputPointer,iOutputBufferLength - iStream.avail_out);
+	}
+