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/*
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* Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies).
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* All rights reserved.
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* This component and the accompanying materials are made available
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* under the terms of the License "Eclipse Public License v1.0"
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* which accompanies this distribution, and is available
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* at the URL "http://www.eclipse.org/legal/epl-v10.html".
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*
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* Initial Contributors:
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* Nokia Corporation - initial contribution.
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*
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* Contributors:
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*
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* Description:
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*
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*/
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// OSTProtocol.cpp: implementation of the COSTProtocol class.
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//
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//////////////////////////////////////////////////////////////////////
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#include "stdafx.h"
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#include "OSTProtocol.h"
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//////////////////////////////////////////////////////////////////////
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// Construction/Destruction
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//////////////////////////////////////////////////////////////////////
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COSTProtocol::COSTProtocol()
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{
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}
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COSTProtocol::~COSTProtocol()
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{
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}
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458
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int COSTProtocol::DecodeMessage(BYTE* fullMessage, DWORD& fullMessageLength, BYTE& msgId, BYTE*& rawMessage, DWORD& rawLength)
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{
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458
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int result = DECODE_MESSAGE_NOT_FOUND;
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WORD msgLen = MAKEWORD(fullMessage[OST_LEN_BYTE_1+1], fullMessage[OST_LEN_BYTE_1]);
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if (fullMessageLength >= (WORD)(msgLen + OST_HDR_LEN_1))
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{
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msgId = fullMessage[OST_PROT_BYTE_1];
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rawMessage = &fullMessage[OST_MSG_BYTE_1];
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rawLength = msgLen;
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fullMessageLength = msgLen+OST_HDR_LEN_1;
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458
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result = DECODE_MESSAGE_FOUND;
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}
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else
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{
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result = DECODE_NOT_ENOUGH_BYTES_TO_SEARCH;
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}
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return result;
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}
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DWORD COSTProtocol::EncodeMessage(BYTE* rawMessage, DWORD rawLength, BYTE protocolVersion, BYTE msgId, BYTE* fullMessage, DWORD maxFullLength)
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{
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DWORD outLength = 0;
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fullMessage[OST_VER_BYTE_1] = protocolVersion;
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fullMessage[OST_PROT_BYTE_1] = msgId;
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fullMessage[OST_LEN_BYTE_1] = (BYTE)((rawLength >> 8) & 0xff);
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fullMessage[OST_LEN_BYTE_1+1] = (BYTE)(rawLength & 0xff);
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if (rawLength > 0)
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{
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memcpy(&fullMessage[OST_MSG_BYTE_1], rawMessage, rawLength);
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}
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outLength = rawLength + OST_HDR_LEN_1;
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return outLength;
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}
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