diff -r 000000000000 -r 2c201484c85f cryptoservices/certificateandkeymgmt/asn1/sequencedec.cpp --- /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* array = REINTERPRET_CAST(CArrayPtrFlat*, aArray); + array->ResetAndDestroy(); + delete array; + } + +EXPORT_C TASN1DecSequence::TASN1DecSequence() + { + } + +EXPORT_C CArrayPtrFlat* TASN1DecSequence::DecodeDERLC(const TDesC8& aSource,TInt& aPos) + + { + CArrayPtrFlat* ret = new(ELeave) CArrayPtrFlat (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* TASN1DecSequence::DecodeDERLC(const TASN1DecGeneric& aSource) + { + CArrayPtrFlat* ret = new(ELeave) CArrayPtrFlat (1); + TCleanupItem cleanupSeq(TASN1DecSequence::CleanupSequence, ret); + CleanupStack::PushL(cleanupSeq); + DecodeContentsL(aSource.GetContentDER(), *ret); + return ret; + } + +EXPORT_C CArrayPtrFlat* TASN1DecSequence::DecodeDERLC(const TDesC8& aSource,TInt& aPos, TInt aMin, TInt aMax) + + { + CArrayPtrFlat* ret = DecodeDERLC(aSource, aPos); + TInt count = ret->Count(); + if ((count < aMin) || (count > aMax)) + { + User::Leave(KErrArgument); + } + return ret; + } + +EXPORT_C CArrayPtrFlat* TASN1DecSequence::DecodeDERLC(const TASN1DecGeneric& aSource, TInt aMin, TInt aMax) + { + CArrayPtrFlat* ret = DecodeDERLC(aSource); + TInt count = ret->Count(); + if ((count < aMin) || (count > aMax)) + { + User::Leave(KErrArgument); + } + return ret; + } + +void TASN1DecSequence::DecodeContentsL(const TDesC8& aSource, CArrayPtrFlat& 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(); + } + }