sl@0: /*
sl@0: * Copyright (c) 1998-2009 Nokia Corporation and/or its subsidiary(-ies).
sl@0: * All rights reserved.
sl@0: * This component and the accompanying materials are made available
sl@0: * under the terms of the License "Eclipse Public License v1.0"
sl@0: * which accompanies this distribution, and is available
sl@0: * at the URL "http://www.eclipse.org/legal/epl-v10.html".
sl@0: *
sl@0: * Initial Contributors:
sl@0: * Nokia Corporation - initial contribution.
sl@0: *
sl@0: * Contributors:
sl@0: *
sl@0: * Description: 
sl@0: * This file contains the implementation of the ASN1 Null class.
sl@0: *
sl@0: */
sl@0: 
sl@0: 
sl@0: #include "asn1dec.h"
sl@0: 
sl@0: EXPORT_C TASN1DecNull::TASN1DecNull(void)
sl@0: 	{
sl@0: 	}
sl@0: 
sl@0: EXPORT_C void TASN1DecNull::DecodeDERL(const TDesC8& aSource,TInt& aPos)
sl@0: 
sl@0: 	{
sl@0: 	TPtrC8 Source=aSource.Mid(aPos);
sl@0: 	TASN1DecGeneric gen(Source);
sl@0: 	gen.InitL();
sl@0: 	aPos+=gen.LengthDER();
sl@0: 	DecodeDERL(gen);
sl@0: 	}
sl@0: 
sl@0: EXPORT_C void TASN1DecNull::DecodeDERL(const TASN1DecGeneric& aSource)
sl@0: 	{
sl@0: 	TPtrC8 contents(aSource.Encoding());
sl@0: 	if ((contents.Length() != 2)	||
sl@0: 		(contents[1] & 0xff)		||
sl@0: 		(!(contents[0] & 0x05)))
sl@0: 		{
sl@0: 		User::Leave(KErrArgument);
sl@0: 		}
sl@0: 	}
sl@0: