1 /*

     2 * Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies).

     3 * All rights reserved.

     4 * This component and the accompanying materials are made available

     5 * under the terms of the License "Eclipse Public License v1.0"

     6 * which accompanies this distribution, and is available

     7 * at the URL "http://www.eclipse.org/legal/epl-v10.html".

     8 *

     9 * Initial Contributors:

    10 * Nokia Corporation - initial contribution.

    11 *

    12 * Contributors:

    13 *

    14 * Description: 

    15 *

    16 */

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

    18 //

    19 //////////////////////////////////////////////////////////////////////

    20 

    21 #include "stdafx.h"

    22 #include "OSTProtocol.h"

    23 

    24 //////////////////////////////////////////////////////////////////////

    25 // Construction/Destruction

    26 //////////////////////////////////////////////////////////////////////

    27 

    28 COSTProtocol::COSTProtocol()

    29 {

    30 

    31 }

    32 

    33 COSTProtocol::~COSTProtocol()

    34 {

    35 

    36 }

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

    38 {

    39 	BOOL found = FALSE;

    40 

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

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

    43 	{

    44 		msgId = fullMessage[OST_PROT_BYTE_1];

    45 		rawMessage = &fullMessage[OST_MSG_BYTE_1];

    46 		rawLength = msgLen;

    47 		fullMessageLength = msgLen+OST_HDR_LEN_1;

    48 		found = TRUE;

    49 	}

    50 

    51 	return found;

    52 }

    53 

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

    55 {

    56 	DWORD outLength = 0;

    57 

    58 	fullMessage[OST_VER_BYTE_1] = protocolVersion;

    59 	fullMessage[OST_PROT_BYTE_1] = msgId;

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

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

    62 	if (rawLength > 0)

    63 	{

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

    65 	}

    66 	outLength = rawLength + OST_HDR_LEN_1;

    67 

    68 	return outLength;

    69 

    70 }