--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/cryptoservices/certificateandkeymgmt/x500/dstringdec.cpp	Wed Jul 08 11:25:26 2009 +0100
@@ -0,0 +1,112 @@
+/*
+* Copyright (c) 2000-2009 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 directory string ASN1 object
+*
+*/
+
+
+#include "X500dec.h"
+
+/*
+
+  This file contains the implementation of the following ASN1 data structures:
+
+	DirectoryString ::= CHOICE {
+		  teletexString             TeletexString (SIZE (1..MAX)),
+		  printableString           PrintableString (SIZE (1..MAX)),
+		  universalString           UniversalString (SIZE (1..MAX)),
+		  utf8String              UTF8String (SIZE (1..MAX)),
+		  bmpString               BMPString (SIZE(1..MAX))   }
+
+*/
+
+TASN1DecX500DirectoryString::TASN1DecX500DirectoryString(void):
+iMaxLength(KMaxTInt)
+	{
+	}
+
+HBufC* TASN1DecX500DirectoryString::DecodeDERL(const TDesC8& aSource,TInt& aPos, TInt aMaxLength)
+
+	{
+	TPtrC8 Ptr=aSource.Right(aSource.Length()-aPos);
+	TASN1DecGeneric gen(Ptr);
+	gen.InitL();
+	aPos+=gen.LengthDER();
+	HBufC* Object=DecodeContentsL(gen, aMaxLength);
+	return Object;
+	}
+
+HBufC* TASN1DecX500DirectoryString::DecodeDERL(const TASN1DecGeneric& aSource, TInt aMaxLength)
+
+	{
+	return DecodeContentsL(aSource, aMaxLength);
+	}
+
+HBufC* TASN1DecX500DirectoryString::DecodeContentsL(const TASN1DecGeneric& aSource, TInt aMaxLength)
+	{
+	HBufC* res = NULL;
+	switch (aSource.Tag())
+		{
+		case EASN1TeletexString:
+			{
+			TASN1DecTeletexString tStr;
+			res = tStr.DecodeDERL(aSource);
+			break;
+			}
+		case EASN1PrintableString:
+			{
+			TASN1DecPrintableString pStr;
+			res = pStr.DecodeDERL(aSource);
+			break;
+			}
+		case EASN1IA5String:
+			{
+			TASN1DecIA5String pStr;
+			res = pStr.DecodeDERL(aSource);
+			break;
+			}
+		case EASN1UTF8String:
+			{
+			TASN1DecUTF8String pStr;
+			res = pStr.DecodeDERL(aSource);
+			break;
+			}												
+		case EASN1BMPString:
+			{
+			TASN1DecBMPString pStr;
+			res = pStr.DecodeDERL(aSource);
+			break;	
+			}									
+		default:
+			{
+			User::Leave(KErrNotSupported);
+			break;
+			}
+		}
+	if (res->Length() > aMaxLength)
+		{
+		delete res;
+		User::Leave(KErrArgument);
+		}
+	return res;
+	}
+
+void TASN1DecX500DirectoryString::SetMaxLength(TInt aLength)
+// perhaps this should have some kind of testing to make sure the current 
+// contents are valid...this is not as easy as it might first appear, the 
+// contents might be eight or sixteen bits.
+	{
+	iMaxLength=aLength;
+	}