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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 Set and Set-of object,
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* as described in X208 Sections 22 and 23 and X209 Sections 16 and 17. The
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* set object can contain an ordered series of zero, one or more other ASN1
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* objects. The set-of object contains zero, one or more of the objects
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* described in its definition. The data encodings of both these objects is
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* identical. The ordering of the elements contained within set objects is not
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* significant.
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* The implementation of sets is pretty much the same as that for sequences
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* (indeed it has started from a straight cut'n'paste) but there are some
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* significant differences with regard to ordering of items within the set,
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* comparison and retrieval of items.
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*
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*/
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#include "asn1dec.h"
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void TASN1DecSet::CleanupSet(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 TASN1DecSet::TASN1DecSet()
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{
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}
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EXPORT_C CArrayPtrFlat<TASN1DecGeneric>* TASN1DecSet::NewDERLC(const TDesC8& aSource)
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// this whole things needs looking at!
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{
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TInt Pos=0;
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CArrayPtrFlat<TASN1DecGeneric>* ret = new(ELeave) CArrayPtrFlat<TASN1DecGeneric> (1);
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TCleanupItem cleanupSeq(TASN1DecSet::CleanupSet, ret);
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CleanupStack::PushL(cleanupSeq);
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TASN1DecGeneric gen(aSource);
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gen.InitL();
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DecodeContentsL(gen.GetContentDER(), Pos, *ret);
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return ret;
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}
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EXPORT_C CArrayPtrFlat<TASN1DecGeneric>* TASN1DecSet::DecodeDERLC(const TDesC8& aSource,TInt& aPos)
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{
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TPtrC8 Ptr=aSource.Right(aSource.Length()-aPos);
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return TASN1DecSet::NewDERLC(Ptr);
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}
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EXPORT_C CArrayPtrFlat<TASN1DecGeneric>* TASN1DecSet::DecodeDERLC(const TASN1DecGeneric& aSource)
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{
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TInt pos = 0;
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CArrayPtrFlat<TASN1DecGeneric>* ret = new(ELeave) CArrayPtrFlat<TASN1DecGeneric> (1);
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TCleanupItem cleanupSeq(TASN1DecSet::CleanupSet, ret);
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CleanupStack::PushL(cleanupSeq);
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DecodeContentsL(aSource.GetContentDER(), pos, *ret);
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return ret;
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}
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EXPORT_C CArrayPtrFlat<TASN1DecGeneric>* TASN1DecSet::DecodeDERLC(const TDesC8& aSource,TInt& aPos, TInt aMin, TInt aMax)
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{
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CArrayPtrFlat<TASN1DecGeneric>* res = DecodeDERLC(aSource, aPos);
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TInt count = res->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 res;
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}
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EXPORT_C CArrayPtrFlat<TASN1DecGeneric>* TASN1DecSet::DecodeDERLC(const TASN1DecGeneric& aSource, TInt aMin, TInt aMax)
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{
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CArrayPtrFlat<TASN1DecGeneric>* res = DecodeDERLC(aSource);
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TInt count = res->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 res;
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}
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void TASN1DecSet::DecodeContentsL(const TDesC8& aSource, TInt& aPos, CArrayPtrFlat<TASN1DecGeneric>& aDest)
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{
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while (aPos < aSource.Length())
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{
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TPtrC8 Ptr=aSource.Right(aSource.Length() - aPos);
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TASN1DecGeneric* Decoded = new(ELeave) TASN1DecGeneric(Ptr);
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CleanupStack::PushL(Decoded);
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Decoded->InitL();
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aDest.AppendL(Decoded);
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aPos+=Decoded->LengthDER();
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CleanupStack::Pop();//i think this should be just 'pop': need to find out
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}
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}
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