--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/cryptoservices/certificateandkeymgmt/asn1/sequencedec.cpp	Wed Jul 08 11:25:26 2009 +0100
@@ -0,0 +1,100 @@
+/*
+* Copyright (c) 1998-2009 Nokia Corporation and/or its subsidiary(-ies).
+* All rights reserved.
+* This component and the accompanying materials are made available
+* under the terms of the License "Eclipse Public License v1.0"
+* which accompanies this distribution, and is available
+* at the URL "http://www.eclipse.org/legal/epl-v10.html".
+*
+* Initial Contributors:
+* Nokia Corporation - initial contribution.
+*
+* Contributors:
+*
+* Description: 
+* This file contains the implementation of the ASN1 Sequence and Sequence-of 
+* object, as described in X208 Sections 20 and 21 and X209 Sections 14 and 
+* 15. The sequence object can contain an ordered series of zero, one or more
+* other ASN1 objects. The sequence-of object contains zero, one or more of 
+* the objects described in its definition. The data encodings of both these
+* objects is identical. The ordering of the objects contained within the 
+* sequence is defined outside the scope of this object, normally this would
+* be handled by an object deriving from this object but it may be handled
+* somewhere else. 
+*
+*/
+
+
+#include "asn1dec.h"
+
+
+void TASN1DecSequence::CleanupSequence(TAny* aArray)
+	{
+	CArrayPtrFlat<TASN1DecGeneric>* array = REINTERPRET_CAST(CArrayPtrFlat<TASN1DecGeneric>*, aArray);
+	array->ResetAndDestroy();
+	delete array;
+	}
+
+EXPORT_C TASN1DecSequence::TASN1DecSequence()
+	{
+	}
+	
+EXPORT_C CArrayPtrFlat<TASN1DecGeneric>* TASN1DecSequence::DecodeDERLC(const TDesC8& aSource,TInt& aPos)
+
+	{
+	CArrayPtrFlat<TASN1DecGeneric>* ret = new(ELeave) CArrayPtrFlat<TASN1DecGeneric> (1);
+	TCleanupItem cleanupSeq(TASN1DecSequence::CleanupSequence, ret);
+	CleanupStack::PushL(cleanupSeq);
+	TASN1DecGeneric gen(aSource.Right(aSource.Length() - aPos));
+	gen.InitL();
+	aPos += gen.LengthDER();
+	DecodeContentsL(gen.GetContentDER(), *ret);
+	return ret;
+	}
+
+EXPORT_C CArrayPtrFlat<TASN1DecGeneric>* TASN1DecSequence::DecodeDERLC(const TASN1DecGeneric& aSource)
+	{
+	CArrayPtrFlat<TASN1DecGeneric>* ret = new(ELeave) CArrayPtrFlat<TASN1DecGeneric> (1);
+	TCleanupItem cleanupSeq(TASN1DecSequence::CleanupSequence, ret);
+	CleanupStack::PushL(cleanupSeq);
+	DecodeContentsL(aSource.GetContentDER(), *ret);
+	return ret;
+	}
+
+EXPORT_C CArrayPtrFlat<TASN1DecGeneric>* TASN1DecSequence::DecodeDERLC(const TDesC8& aSource,TInt& aPos, TInt aMin, TInt aMax)
+
+	{
+	CArrayPtrFlat<TASN1DecGeneric>* ret = DecodeDERLC(aSource, aPos);
+	TInt count = ret->Count();
+	if ((count < aMin) || (count > aMax))
+		{
+		User::Leave(KErrArgument);
+		}
+	return ret;
+	}
+
+EXPORT_C CArrayPtrFlat<TASN1DecGeneric>* TASN1DecSequence::DecodeDERLC(const TASN1DecGeneric& aSource, TInt aMin, TInt aMax)
+	{
+	CArrayPtrFlat<TASN1DecGeneric>* ret = DecodeDERLC(aSource);
+	TInt count = ret->Count();
+	if ((count < aMin) || (count > aMax))
+		{
+		User::Leave(KErrArgument);
+		}
+	return ret;
+	}
+
+void TASN1DecSequence::DecodeContentsL(const TDesC8& aSource, CArrayPtrFlat<TASN1DecGeneric>& aDest)
+	{
+	TInt pos = 0;
+	while (pos < aSource.Length())
+		{
+		TPtrC8 p(aSource.Right(aSource.Length() - pos));
+		TASN1DecGeneric* Decoded = new(ELeave) TASN1DecGeneric(p);
+		CleanupStack::PushL(Decoded);
+		Decoded->InitL();
+		aDest.AppendL(Decoded);
+		pos+=Decoded->LengthDER();
+		CleanupStack::Pop();
+		}
+	}