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