// xmodem.h

// 

// Copyright (c) 2008 - 2010 Accenture. All rights reserved.

// This component and the accompanying materials are made available

// under the terms of the "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:

// Accenture - Initial contribution

//

#ifndef __XMODEM_H__

#define __XMODEM_H__

#include <fshell/ioutils.h>

using namespace IoUtils;

class CCmdXmodem : public CCommandBase

	{

public:

	enum TSyncResult

		{

		ENormal,

		EEot

		};

public:

	static CCommandBase* NewLC();

	~CCmdXmodem();

protected:

	CCmdXmodem();

	void ConstructL();

	void SendStdinL();

	void SendFileL(const TDesC& aFileName);

	void ReceiveToStdoutL();

	void ReceiveToFileL(const TDesC& aFileName);

	void ReceiveToNullL();

	void SendBlockL(const TDesC& aBlock);

	TPtrC ReceiveBlockL(TBool aIsFirstBlock, TBool& aIsFinalBlock);

	void DoReceiveBlockL();

	void SendTerminateL();

	void WaitForSyncL();

	TSyncResult SendSyncL();

	TUint8 ReceiveByteL(TInt aTimeout, TBool* aTimeoutOccurred = NULL);

	TUint16 ReceiveShortL(TInt aTimeout, TBool* aTimeoutOccurred = NULL);

	void ReceiveWithTimeoutL(TDes& aBuf, TInt aTimeout, TBool* aTimeoutOccurred = NULL);

	void DoReceiveWithTimeoutL(TDes& aBuf, TInt aTimeout, TBool* aTimeoutOccurred = NULL);

	void PurgeInputL();

	void SendL(const TDesC& aData);

	TInt CheckSize() const;

	TInt ProtocolOverhead() const;

	TBool CheckBlock() const;

	void Progress(TRefByValue<const TDesC> aFmt, ...) const;

	void Dump(const TDesC& aData);

	void Abort();

	void HandleTelnetCommandL();

	void Unget(TChar aChar);

	void PrepareConsoleToTransferL();

	void CleanupClonsoleAfterTransferL();

private: // From CCommandBase.

	virtual const TDesC& Name() const;

	virtual void DoRunL();

	virtual void ArgumentsL(RCommandArgumentList& aArguments);

	virtual void HandleLeave(TInt aError);

protected:

	virtual void OptionsL(RCommandOptionList& aOptions);

private:

	enum TTelnetMode

		{

		ESendBinary = 0x00000001,

		ERecvBinary = 0x00000002

		};

protected:

	enum 

		{

		ESend, EReceive

		} iMode;

	TFileName2 iFileName;

	TInt iBlockSize;

	TUint8 iPacketNumber;

	TBool iOverwrite;

private:

	TBool iVerbose;

	TBool iCrc;

	TBool iStarted;

	TUint iTelnetMode;

	HBufC* iBuf;

	TBuf<2> iUngetBuf;

	RTimer iTimer;

	};

#endif // __XMODEM_H__