/*+
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* Copyright (c) 2000-2009 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 directory string ASN1 object+
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*+
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*/+
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+
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+
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#include "X500dec.h"+
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+
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/*+
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+
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  This file contains the implementation of the following ASN1 data structures:+
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+
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	DirectoryString ::= CHOICE {+
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		  teletexString             TeletexString (SIZE (1..MAX)),+
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		  printableString           PrintableString (SIZE (1..MAX)),+
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		  universalString           UniversalString (SIZE (1..MAX)),+
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		  utf8String              UTF8String (SIZE (1..MAX)),+
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		  bmpString               BMPString (SIZE(1..MAX))   }+
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+
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*/+
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+
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TASN1DecX500DirectoryString::TASN1DecX500DirectoryString(void):+
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iMaxLength(KMaxTInt)+
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	{+
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	}+
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+
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HBufC* TASN1DecX500DirectoryString::DecodeDERL(const TDesC8& aSource,TInt& aPos, TInt aMaxLength)+
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+
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	{+
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	TPtrC8 Ptr=aSource.Right(aSource.Length()-aPos);+
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	TASN1DecGeneric gen(Ptr);+
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	gen.InitL();+
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	aPos+=gen.LengthDER();+
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	HBufC* Object=DecodeContentsL(gen, aMaxLength);+
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	return Object;+
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	}+
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+
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HBufC* TASN1DecX500DirectoryString::DecodeDERL(const TASN1DecGeneric& aSource, TInt aMaxLength)+
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+
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	{+
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	return DecodeContentsL(aSource, aMaxLength);+
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	}+
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+
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HBufC* TASN1DecX500DirectoryString::DecodeContentsL(const TASN1DecGeneric& aSource, TInt aMaxLength)+
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	{+
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	HBufC* res = NULL;+
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	switch (aSource.Tag())+
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		{+
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		case EASN1TeletexString:+
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			{+
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			TASN1DecTeletexString tStr;+
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			res = tStr.DecodeDERL(aSource);+
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			break;+
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			}+
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		case EASN1PrintableString:+
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			{+
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			TASN1DecPrintableString pStr;+
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			res = pStr.DecodeDERL(aSource);+
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			break;+
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			}+
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		case EASN1IA5String:+
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			{+
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			TASN1DecIA5String pStr;+
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			res = pStr.DecodeDERL(aSource);+
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			break;+
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			}+
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		case EASN1UTF8String:+
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			{+
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			TASN1DecUTF8String pStr;+
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			res = pStr.DecodeDERL(aSource);+
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			break;+
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			}												+
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		case EASN1BMPString:+
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			{+
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			TASN1DecBMPString pStr;+
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			res = pStr.DecodeDERL(aSource);+
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			break;	+
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			}									+
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		default:+
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			{+
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			User::Leave(KErrNotSupported);+
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			break;+
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			}+
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		}+
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	if (res->Length() > aMaxLength)+
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		{+
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		delete res;+
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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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+
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void TASN1DecX500DirectoryString::SetMaxLength(TInt aLength)+
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// perhaps this should have some kind of testing to make sure the current +
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// contents are valid...this is not as easy as it might first appear, the +
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// contents might be eight or sixteen bits.+
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	{+
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	iMaxLength=aLength;+
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	}+
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