1 /**

     2 * Copyright (c) 1998-2009 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 "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 * Active object to perform DNS lookup

    16 * Author:	Philippe Gabriel

    17 * Performs DNS lookup for the FTP client

    18 * 

    19 *

    20 */

    21 

    22 

    23 

    24 /**

    25  @file RESOLVER.H

    26  @internalComponent

    27 */

    28 

    29 #if !defined(__RESOLVER_H__)

    30 #define __RESOLVER_H__

    31 #include "DEBUG.H"

    32 #include "FTPDEF.H"

    33 #include <e32base.h>

    34 #include <in_sock.h>

    35 

    36 //////////////////////////////////////////////////////////////

    37 // Definitions

    38 //////////////////////////////////////////////////////////////

    39 

    40 class CFtpProtocol;

    41 class MFTPResolverNotifier

    42 /**

    43 @internalComponent

    44 */

    45 {

    46 public:

    47 /** 

    48 Operation completion return codes.

    49 */ 

    50 	enum TFTPResolverNotificationCode 

    51 		{

    52 		EDtpLookupComplete=0, 

    53 		EDtpLookupFailed

    54 		};

    55 public:

    56 		/** Notify of normal completion of an operation */

    57 		virtual void FTPResolverNotifier(const TFTPResolverNotificationCode)=0;

    58 };

    59 NONSHARABLE_CLASS(CFTPResolver) : public CActive

    60 /**

    61 @internalComponent

    62 */

    63 {

    64 public:

    65 	CFTPResolver(MFTPResolverNotifier*);

    66 	~CFTPResolver();

    67 	static CFTPResolver* NewL(MFTPResolverNotifier*,RSocketServ&);

    68 	void ConstructL(RSocketServ& aSockServ);

    69 	void Lookup(const THostName& aServerName);

    70 	void SetAddress(TInetAddr& aAddress);

    71 protected:

    72 	void RunL();

    73     void DoCancel(void);

    74 private:

    75 	/** Used for resoving Ip Address from a name and vice versa */

    76 	RHostResolver iResolver;  

    77 	/** PlaceHolder for the resolved address */

    78 	TInetAddr* iAddress; 

    79 	TNameEntry iNameEntry;

    80 	TNameRecord iNameRecord;

    81 	MFTPResolverNotifier* iNotifier;

    82 	TBuf8<40> iServerName;

    83 };

    84 #endif // __RESOLVER_H__