1 // Copyright (c) 1996-2009 Nokia Corporation and/or its subsidiary(-ies).

     2 // All rights reserved.

     3 // This component and the accompanying materials are made available

     4 // under the terms of the License "Eclipse Public License v1.0"

     5 // which accompanies this distribution, and is available

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

     7 //

     8 // Initial Contributors:

     9 // Nokia Corporation - initial contribution.

    10 //

    11 // Contributors:

    12 //

    13 // Description:

    14 // f32\sfat\sl_dir.cpp

    15 // 

    16 //

    17 

    18 //!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

    19 //!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

    20 //!!

    21 //!! WARNING!! DO NOT edit this file !! '\sfat' component is obsolete and is not being used. '\sfat32'replaces it

    22 //!!

    23 //!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

    24 //!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

    25 

    26 #include "sl_std.h"

    27 

    28 CFatDirCB* CFatDirCB::NewL()

    29 //

    30 // Static constructor

    31 //

    32     {

    33 

    34     CFatDirCB* fatDirCB=new(ELeave) CFatDirCB;

    35     return fatDirCB;

    36     }

    37 

    38 CFatDirCB::CFatDirCB()

    39 //

    40 // Constructor

    41 //

    42     {

    43     }

    44 

    45 CFatDirCB::~CFatDirCB()

    46 //

    47 // Destructor

    48 //

    49     {

    50     

    51     delete iMatch;

    52     delete iLongNameBuf;

    53     }

    54 

    55 void CFatDirCB::SetDirL(const TFatDirEntry& anEntry,const TDesC& aName)

    56 //

    57 // Set the current entry to anEntryAddr

    58 //

    59     {

    60 

    61     __PRINT(_L("CFatDirCB::SetDirL"));  

    62 //  iEntryAddr=0;

    63 //  iPending=EFalse;

    64     iEntry=anEntry;

    65     iCurrentPos.iCluster= FatMount().StartCluster(iEntry);

    66     iMatch=aName.AllocL();

    67     if (iUidType[0]!=TUid::Null() || iUidType[1]!=TUid::Null() || iUidType[2]!=TUid::Null())

    68         iMatchUid=ETrue;

    69     }

    70 

    71 LOCAL_C TBool CompareUid(const TUidType& aUidTrg, const TUidType& aUidSuitor)

    72 //

    73 // Compare the suitor to the target pattern

    74 //

    75     {

    76     

    77     if (aUidTrg[0]!=TUid::Null() && aUidTrg[0]!=aUidSuitor[0])

    78         return(EFalse);

    79     if (aUidTrg[1]!=TUid::Null() && aUidTrg[1]!=aUidSuitor[1])

    80         return(EFalse);

    81     if (aUidTrg[2]!=TUid::Null() && aUidTrg[2]!=aUidSuitor[2])

    82         return(EFalse);

    83     return(ETrue);

    84     }

    85 

    86 void CFatDirCB::ReadL(TEntry &anEntry)

    87 //

    88 // Read the next entry from the directory.

    89 //

    90     {

    91 

    92     __PRINT(_L("CFatDirCB::ReadL"));

    93     

    94     FatMount().CheckStateConsistentL();

    95     

    96 

    97     Mem::FillZ(&anEntry.iType,sizeof(TUidType));

    98 

    99     TPtr entryName(anEntry.iName.Des());

   100     FOREVER

   101         {

   102         if (iPending)

   103             entryName=(*iLongNameBuf);

   104         else

   105             {

   106             FatMount().FindDosNameL(*iMatch,iAtt,iCurrentPos,iEntry,entryName,KErrEof);

   107             FatMount().MoveToNextEntryL(iCurrentPos);

   108             }

   109         iPending=EFalse;

   110         if (iEntry.Attributes()&~KEntryAttMaskSupported)

   111             continue; // Ignore illegal entries

   112         anEntry.iAtt=iEntry.Attributes();

   113         anEntry.iSize=iEntry.Size();

   114         anEntry.iModified=iEntry.Time(FatMount().TimeOffset() );

   115     

   116         if (entryName.Length()==0)

   117             {

   118             //  VFAT entry names are always created for UNICODE at an earlier stage

   119             //  However, UNICODE builds may still encounter genuine FAT filenames through

   120             //  the introduction of files created using a narrow (ASCII) build

   121             TBuf8<0x20> dosName(DosNameFromStdFormat(iEntry.Name()));

   122             LocaleUtils::ConvertToUnicodeL(entryName, dosName);

   123             }

   124         TBool matchedUid=ETrue;

   125         if (iMatchUid && (anEntry.iAtt&KEntryAttDir)==EFalse)

   126             {

   127             if ((TUint)anEntry.iSize>=sizeof(TCheckedUid))

   128                 FatMount().ReadUidL(FatMount().StartCluster(iEntry),anEntry);

   129             if (CompareUid(iUidType,anEntry.iType)==EFalse)

   130                 matchedUid=EFalse;

   131             }

   132                     

   133         if (matchedUid)

   134             break;

   135         }

   136     if ((iAtt&KEntryAttAllowUid)==0 || (anEntry.iAtt&KEntryAttDir) || (TUint)anEntry.iSize<sizeof(TCheckedUid))

   137         return;

   138     if (iMatchUid==EFalse)

   139         {

   140         TInt r;

   141         TRAP(r,FatMount().ReadUidL(FatMount().StartCluster(iEntry),anEntry));

   142         if(r!=KErrNone && r!=KErrCorrupt)

   143             User::Leave(r);

   144         }

   145     }

   146 

   147 void CFatDirCB::StoreLongEntryNameL(const TDesC& aName)

   148 //

   149 // Store aName while next read is pending

   150 //

   151     {

   152 

   153     AllocBufferL(iLongNameBuf,aName);

   154     }