/*

 * Copyright (c) 2006-2009 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 BMPString ASN1 object.

 *

 */

 #include <asn1dec.h>

 EXPORT_C TASN1DecBMPString::TASN1DecBMPString(void)

 	{

 	}

 EXPORT_C TInt TASN1DecBMPString::CheckValid(const TDesC8& /*aString*/)

 	{

 	return KErrNone;

 	}

 /**

 Decodes an ASN.1 format BMP string.

 @param aSource ASN.1 BMP string to be decoded.

 @param aPos Offset in aSource from where decoding starts.

 @return On return, a pointer to a buffer containing the decoded BMP string.

 */

 EXPORT_C HBufC* TASN1DecBMPString::DecodeDERL(const TDesC8& aSource,TInt& aPos)

 	{

 	TPtrC8 Source=aSource.Mid(aPos);

 	TASN1DecGeneric gen(Source);

 	gen.InitL();	

 	HBufC* res = DecodeContentsL(gen.GetContentDER());

 	return res;

 	}

 /**

 Decodes an ASN.1 format BMP string.

 @param aSource ASN.1 BMP string to be decoded.

 @return On return, a pointer to a buffer containing the decoded BMP string.

 */

 EXPORT_C HBufC* TASN1DecBMPString::DecodeDERL(const TASN1DecGeneric& aSource)

 	{

 	return DecodeContentsL(aSource.GetContentDER());

 	}

 HBufC* TASN1DecBMPString::DecodeContentsL(const TDesC8& aSource)

 	{

 	TInt len = aSource.Length()/2;

 	HBufC* res = HBufC::NewL(len);

 	const TUint16* data16 = reinterpret_cast<const TUint16 *>(aSource.Ptr()); 

 	TPtr pRes = res->Des();

 	pRes.Copy(data16, len);

 	return res;

 	}