contentmgmt/contentaccessfwfordrm/source/cafutils/Cafutils.cpp
changeset 0 2c201484c85f
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     1 /*
       
     2 * Copyright (c) 2003-2009 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 
       
    18 
       
    19 
       
    20 #include <e32base.h>
       
    21 #include <s32strm.h>
       
    22 #include "cafutils.h"
       
    23 
       
    24 using namespace ContentAccess;
       
    25 
       
    26 HBufC* TCafUtils::ReadDescriptor16L(RReadStream& aStream)
       
    27 	{
       
    28 	// Read the unicode data from the stream
       
    29 	TInt dataLength = aStream.ReadInt32L();
       
    30 	HBufC* iData = HBufC::NewL(dataLength);
       
    31 	CleanupStack::PushL(iData);
       
    32 	if(dataLength > 0)
       
    33 		{
       
    34 		TPtr dataPtr = iData->Des();
       
    35 		aStream.ReadL(dataPtr, dataLength);
       
    36 		}
       
    37 	CleanupStack::Pop(iData);
       
    38 	return iData;
       
    39 	}
       
    40 
       
    41 void TCafUtils::WriteDescriptor16L(RWriteStream& aStream, const TDesC& aDescriptor)
       
    42 	{
       
    43 	// Write unicode data to the stream
       
    44 	aStream.WriteInt32L(aDescriptor.Length());
       
    45 	aStream.WriteL(aDescriptor);
       
    46 	}	
       
    47 
       
    48 HBufC8* TCafUtils::ReadDescriptor8L(RReadStream& aStream)
       
    49 	{
       
    50 	// Read the 8 bit data from a stream
       
    51 	TInt dataLength = aStream.ReadInt32L();
       
    52 	HBufC8* iData = HBufC8::NewL(dataLength);
       
    53 	CleanupStack::PushL(iData);
       
    54 	if(dataLength > 0)
       
    55 		{
       
    56 		TPtr8 dataPtr = iData->Des();
       
    57 		aStream.ReadL(dataPtr, dataLength);
       
    58 		}
       
    59 	CleanupStack::Pop(iData);
       
    60 	return iData;
       
    61 	}
       
    62 
       
    63 void TCafUtils::ReadDescriptor8L(RReadStream& aStream, TDes8& aBuffer)
       
    64 	{
       
    65 	aBuffer.SetLength(0);
       
    66 	
       
    67 	// Read the 8 bit data from a stream
       
    68 	TInt dataLength = aStream.ReadInt32L();
       
    69 	if(dataLength > aBuffer.MaxLength())
       
    70 		{
       
    71 		User::Leave(KErrOverflow);
       
    72 		}
       
    73 	if(dataLength > 0)
       
    74 		{
       
    75 		aStream.ReadL(aBuffer, dataLength);
       
    76 		}
       
    77 	}
       
    78 
       
    79 void TCafUtils::WriteDescriptor8L(RWriteStream& aStream, const TDesC8& aDescriptor)
       
    80 	{
       
    81 	// Write 8 bit data to a stream
       
    82 	aStream.WriteInt32L(aDescriptor.Length());
       
    83 	aStream.WriteL(aDescriptor);
       
    84 	}	
       
    85 
       
    86 // DLL entry point - only for EKA1