/*

* Copyright (c) 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: 

*

*/

// OSTProtocol.cpp: implementation of the COSTProtocol class.

//

//////////////////////////////////////////////////////////////////////

#include "stdafx.h"

#include "OSTProtocol.h"

//////////////////////////////////////////////////////////////////////

// Construction/Destruction

//////////////////////////////////////////////////////////////////////

COSTProtocol::COSTProtocol()

{

}

COSTProtocol::~COSTProtocol()

{

}

BOOL COSTProtocol::DecodeMessage(BYTE* fullMessage, DWORD& fullMessageLength, BYTE& msgId, BYTE*& rawMessage, DWORD& rawLength)

{

	BOOL found = FALSE;

	WORD msgLen = MAKEWORD(fullMessage[OST_LEN_BYTE_1+1], fullMessage[OST_LEN_BYTE_1]);

	if (fullMessageLength >= (WORD)(msgLen + OST_HDR_LEN_1))

	{

		msgId = fullMessage[OST_PROT_BYTE_1];

		rawMessage = &fullMessage[OST_MSG_BYTE_1];

		rawLength = msgLen;

		fullMessageLength = msgLen+OST_HDR_LEN_1;

		found = TRUE;

	}

	return found;

}

DWORD COSTProtocol::EncodeMessage(BYTE* rawMessage, DWORD rawLength, BYTE protocolVersion, BYTE msgId, BYTE* fullMessage, DWORD maxFullLength)

{

	DWORD outLength = 0;

	fullMessage[OST_VER_BYTE_1] = protocolVersion;

	fullMessage[OST_PROT_BYTE_1] = msgId;

	fullMessage[OST_LEN_BYTE_1] = (BYTE)((rawLength >> 8) & 0xff);

	fullMessage[OST_LEN_BYTE_1+1] = (BYTE)(rawLength & 0xff);

	if (rawLength > 0)

	{

		memcpy(&fullMessage[OST_MSG_BYTE_1], rawMessage, rawLength);

	}

	outLength = rawLength + OST_HDR_LEN_1;

	return outLength;

}