1 /*

     2 * Copyright (c) 2006-2009 Nokia Corporation and/or its subsidiary(-ies).

     3 * All rights reserved.

     4 * This component and the accompanying materials are made available

     5 * under the terms of the License "Eclipse Public License v1.0"

     6 * which accompanies this distribution, and is available

     7 * at the URL "http://www.eclipse.org/legal/epl-v10.html".

     8 *

     9 * Initial Contributors:

    10 * Nokia Corporation - initial contribution.

    11 *

    12 * Contributors:

    13 *

    14 * Description: 

    15 * This file contains the implementation of the BMPString ASN1 object.

    16 *

    17 */

    18 

    19 

    20 

    21 #include <asn1dec.h>

    22 

    23 

    24 EXPORT_C TASN1DecBMPString::TASN1DecBMPString(void)

    25 	{

    26 	}

    27 

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

    29 	{

    30 	return KErrNone;

    31 	}

    32 

    33 /**

    34 Decodes an ASN.1 format BMP string.

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

    36 @param aPos Offset in aSource from where decoding starts.

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

    38 */

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

    40 	{

    41 	TPtrC8 Source=aSource.Mid(aPos);

    42 	TASN1DecGeneric gen(Source);

    43 	gen.InitL();	

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

    45 	return res;

    46 	}

    47 

    48 /**

    49 Decodes an ASN.1 format BMP string.

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

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

    52 */

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

    54 	{

    55 	return DecodeContentsL(aSource.GetContentDER());

    56 	}

    57 

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

    59 	{

    60 	TInt len = aSource.Length()/2;

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

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

    63 	TPtr pRes = res->Des();

    64 	pRes.Copy(data16, len);

    65 	return res;

    66 	}