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 Sequence and Sequence-of 
sl@0: * object, as described in X208 Sections 20 and 21 and X209 Sections 14 and 
sl@0: * 15. The sequence object can contain an ordered series of zero, one or more
sl@0: * other ASN1 objects. The sequence-of object contains zero, one or more of 
sl@0: * the objects described in its definition. The data encodings of both these
sl@0: * objects is identical. The ordering of the objects contained within the 
sl@0: * sequence is defined outside the scope of this object, normally this would
sl@0: * be handled by an object deriving from this object but it may be handled
sl@0: * somewhere else. 
sl@0: *
sl@0: */
sl@0: 
sl@0: 
sl@0: #include "asn1dec.h"
sl@0: 
sl@0: 
sl@0: void TASN1DecSequence::CleanupSequence(TAny* aArray)
sl@0: 	{
sl@0: 	CArrayPtrFlat<TASN1DecGeneric>* array = REINTERPRET_CAST(CArrayPtrFlat<TASN1DecGeneric>*, aArray);
sl@0: 	array->ResetAndDestroy();
sl@0: 	delete array;
sl@0: 	}
sl@0: 
sl@0: EXPORT_C TASN1DecSequence::TASN1DecSequence()
sl@0: 	{
sl@0: 	}
sl@0: 	
sl@0: EXPORT_C CArrayPtrFlat<TASN1DecGeneric>* TASN1DecSequence::DecodeDERLC(const TDesC8& aSource,TInt& aPos)
sl@0: 
sl@0: 	{
sl@0: 	CArrayPtrFlat<TASN1DecGeneric>* ret = new(ELeave) CArrayPtrFlat<TASN1DecGeneric> (1);
sl@0: 	TCleanupItem cleanupSeq(TASN1DecSequence::CleanupSequence, ret);
sl@0: 	CleanupStack::PushL(cleanupSeq);
sl@0: 	TASN1DecGeneric gen(aSource.Right(aSource.Length() - aPos));
sl@0: 	gen.InitL();
sl@0: 	aPos += gen.LengthDER();
sl@0: 	DecodeContentsL(gen.GetContentDER(), *ret);
sl@0: 	return ret;
sl@0: 	}
sl@0: 
sl@0: EXPORT_C CArrayPtrFlat<TASN1DecGeneric>* TASN1DecSequence::DecodeDERLC(const TASN1DecGeneric& aSource)
sl@0: 	{
sl@0: 	CArrayPtrFlat<TASN1DecGeneric>* ret = new(ELeave) CArrayPtrFlat<TASN1DecGeneric> (1);
sl@0: 	TCleanupItem cleanupSeq(TASN1DecSequence::CleanupSequence, ret);
sl@0: 	CleanupStack::PushL(cleanupSeq);
sl@0: 	DecodeContentsL(aSource.GetContentDER(), *ret);
sl@0: 	return ret;
sl@0: 	}
sl@0: 
sl@0: EXPORT_C CArrayPtrFlat<TASN1DecGeneric>* TASN1DecSequence::DecodeDERLC(const TDesC8& aSource,TInt& aPos, TInt aMin, TInt aMax)
sl@0: 
sl@0: 	{
sl@0: 	CArrayPtrFlat<TASN1DecGeneric>* ret = DecodeDERLC(aSource, aPos);
sl@0: 	TInt count = ret->Count();
sl@0: 	if ((count < aMin) || (count > aMax))
sl@0: 		{
sl@0: 		User::Leave(KErrArgument);
sl@0: 		}
sl@0: 	return ret;
sl@0: 	}
sl@0: 
sl@0: EXPORT_C CArrayPtrFlat<TASN1DecGeneric>* TASN1DecSequence::DecodeDERLC(const TASN1DecGeneric& aSource, TInt aMin, TInt aMax)
sl@0: 	{
sl@0: 	CArrayPtrFlat<TASN1DecGeneric>* ret = DecodeDERLC(aSource);
sl@0: 	TInt count = ret->Count();
sl@0: 	if ((count < aMin) || (count > aMax))
sl@0: 		{
sl@0: 		User::Leave(KErrArgument);
sl@0: 		}
sl@0: 	return ret;
sl@0: 	}
sl@0: 
sl@0: void TASN1DecSequence::DecodeContentsL(const TDesC8& aSource, CArrayPtrFlat<TASN1DecGeneric>& aDest)
sl@0: 	{
sl@0: 	TInt pos = 0;
sl@0: 	while (pos < aSource.Length())
sl@0: 		{
sl@0: 		TPtrC8 p(aSource.Right(aSource.Length() - pos));
sl@0: 		TASN1DecGeneric* Decoded = new(ELeave) TASN1DecGeneric(p);
sl@0: 		CleanupStack::PushL(Decoded);
sl@0: 		Decoded->InitL();
sl@0: 		aDest.AppendL(Decoded);
sl@0: 		pos+=Decoded->LengthDER();
sl@0: 		CleanupStack::Pop();
sl@0: 		}
sl@0: 	}