author | Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> |
Fri, 11 Jun 2010 13:45:18 +0300 | |
changeset 42 | d17dc5398051 |
parent 0 | ba25891c3a9e |
permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 2005-2009 Nokia Corporation and/or its subsidiary(-ies). |
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* All rights reserved. |
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* This component and the accompanying materials are made available |
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* under the terms of the License "Eclipse Public License v1.0" |
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* which accompanies this distribution, and is available |
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* at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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* |
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* Initial Contributors: |
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* Nokia Corporation - initial contribution. |
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* |
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* Contributors: |
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* |
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* Description: |
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* |
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*/ |
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|
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#include "sidcache.h" |
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#include "securitycheckutil.h" |
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#include "cleanuputils.h" |
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#include <s32file.h> |
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#include <e32uid.h> |
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#include <f32file.h> |
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#include <e32ldr_private.h> |
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#include "securityinfo.h" |
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|
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namespace Swi |
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{ |
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_LIT(KSidCacheFileName, "sidcache.cache"); |
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|
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#ifdef SYMBIAN_UNIVERSAL_INSTALL_FRAMEWORK |
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CSidCache* CSidCache::NewL(Usif::RStsSession& aStsSession) |
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#else |
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CSidCache* CSidCache::NewL(CIntegrityServices& aIntegrityServices) |
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#endif |
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{ |
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#ifdef SYMBIAN_UNIVERSAL_INSTALL_FRAMEWORK |
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CSidCache* self = CSidCache::NewLC(aStsSession); |
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#else |
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CSidCache* self = CSidCache::NewLC(aIntegrityServices); |
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#endif |
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CleanupStack::Pop(self); |
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return self; |
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|
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} |
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|
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#ifdef SYMBIAN_UNIVERSAL_INSTALL_FRAMEWORK |
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CSidCache* CSidCache::NewLC(Usif::RStsSession& aStsSession) |
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#else |
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CSidCache* CSidCache::NewLC(CIntegrityServices& aIntegrityServices) |
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#endif |
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{ |
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|
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CSidCache* self = new (ELeave) CSidCache; |
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CleanupStack::PushL(self); |
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#ifdef SYMBIAN_UNIVERSAL_INSTALL_FRAMEWORK |
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self->ConstructL(aStsSession); |
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#else |
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self->ConstructL(aIntegrityServices); |
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#endif |
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return self; |
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|
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} |
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|
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#ifdef SYMBIAN_UNIVERSAL_INSTALL_FRAMEWORK |
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void CSidCache::ConstructL(Usif::RStsSession& aStsSession) |
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#else |
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void CSidCache::ConstructL(CIntegrityServices& aIntegrityServices) |
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#endif |
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{ |
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RFs fs; |
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User::LeaveIfError(fs.Connect()); |
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CleanupClosePushL(fs); |
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iSystemDrive = RFs::GetSystemDrive(); |
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TChar driveChar; |
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RFs::DriveToChar(iSystemDrive, driveChar); |
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TUint systemDriveChar = driveChar; |
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|
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// Build the absolute file name of the SID cache |
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_LIT(KSidCacheNameFormat, "%c:%S%S"); |
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|
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// 20 Max length ....Ex: Private\101F7295 |
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TBuf<20> privatePath; |
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fs.PrivatePath(privatePath); |
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|
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//40 Max length ... Ex: C:\Private\101F7295\sidcache.cache |
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TBuf<40> sidCacheFileName; |
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sidCacheFileName.Format(KSidCacheNameFormat, systemDriveChar, &privatePath, &KSidCacheFileName); |
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|
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RFile sidCacheFile; |
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TInt err = sidCacheFile.Open(fs, sidCacheFileName, EFileStream|EFileRead); |
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|
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switch (err) |
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{ |
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case KErrNone: |
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{ |
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// The file exists, so internalise it |
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CleanupClosePushL(sidCacheFile); |
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RFileReadStream cacheReadStream(sidCacheFile); |
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cacheReadStream.PushL(); |
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103 |
|
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|
104 |
TRAP(err, InternalizeL(cacheReadStream)); |
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Revision: 200949
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diff
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|
105 |
CleanupStack::PopAndDestroy(2, &sidCacheFile); |
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Revision: 200949
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parents:
diff
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|
106 |
|
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Revision: 200949
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diff
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|
107 |
if (err) |
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Revision: 200949
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diff
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|
108 |
{ |
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Revision: 200949
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parents:
diff
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|
109 |
// We failed to read the cache file. Delete it in case it is |
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Revision: 200949
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diff
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|
110 |
// corrupt |
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Revision: 200949
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diff
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|
111 |
RLoader loader; |
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Revision: 200949
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diff
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|
112 |
User::LeaveIfError(loader.Connect()); |
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diff
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|
113 |
CleanupClosePushL(loader); |
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diff
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|
114 |
|
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diff
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|
115 |
User::LeaveIfError(loader.Delete(sidCacheFileName)); |
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Revision: 200949
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diff
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|
116 |
|
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Revision: 200949
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diff
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|
117 |
CleanupStack::PopAndDestroy(&loader); |
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Revision: 200949
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diff
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|
118 |
|
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Revision: 200949
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|
119 |
// Propogate the leave. |
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Revision: 200949
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|
120 |
User::Leave(err); |
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|
121 |
} |
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Revision: 200949
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|
122 |
break; |
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Revision: 200949
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diff
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|
123 |
} |
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diff
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|
124 |
|
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Revision: 200949
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diff
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|
125 |
case KErrPathNotFound: |
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Revision: 200949
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diff
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|
126 |
// InstallServer's private directory does not exist |
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Revision: 200949
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|
127 |
User::LeaveIfError(fs.CreatePrivatePath(iSystemDrive)); |
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Revision: 200949
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|
128 |
// fallthrough |
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|
129 |
|
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|
130 |
case KErrNotFound: |
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Revision: 200949
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|
131 |
{ |
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|
132 |
// The cache file does not exist (This may be a fallthrough |
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Revision: 200949
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|
133 |
// from the state above) |
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Revision: 200949
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|
134 |
|
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Revision: 200949
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diff
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|
135 |
// Read the SIDs from the ROM /sys/bin directory |
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Revision: 200949
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diff
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|
136 |
ScanFileSystemL(fs); |
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Revision: 200949
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diff
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|
137 |
|
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Revision: 200949
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parents:
diff
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|
138 |
// Create the cache file and externalise the SIDs. |
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Revision: 200949
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parents:
diff
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|
139 |
// Add the file to STS, so we never |
ba25891c3a9e
Revision: 200949
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parents:
diff
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|
140 |
// get a bad cache file on the device |
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Revision: 200949
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parents:
diff
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|
141 |
|
ba25891c3a9e
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
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|
142 |
#ifdef SYMBIAN_UNIVERSAL_INSTALL_FRAMEWORK |
ba25891c3a9e
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
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|
143 |
aStsSession.RegisterNewL(sidCacheFileName); |
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Revision: 200949
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diff
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|
144 |
#else |
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Revision: 200949
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diff
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|
145 |
aIntegrityServices.AddL(sidCacheFileName); |
ba25891c3a9e
Revision: 200949
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parents:
diff
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|
146 |
#endif |
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Revision: 200949
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parents:
diff
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|
147 |
User::LeaveIfError(sidCacheFile.Create(fs, sidCacheFileName, EFileStream|EFileWrite)); |
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Revision: 200949
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parents:
diff
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|
148 |
CleanupClosePushL(sidCacheFile); |
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Revision: 200949
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parents:
diff
changeset
|
149 |
|
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Revision: 200949
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parents:
diff
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|
150 |
RFileWriteStream cacheWriteStream(sidCacheFile); |
ba25891c3a9e
Revision: 200949
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parents:
diff
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|
151 |
cacheWriteStream.PushL(); |
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Revision: 200949
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parents:
diff
changeset
|
152 |
|
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Revision: 200949
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diff
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|
153 |
ExternalizeL(cacheWriteStream); |
ba25891c3a9e
Revision: 200949
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parents:
diff
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|
154 |
CleanupStack::PopAndDestroy(2, &sidCacheFile); |
ba25891c3a9e
Revision: 200949
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parents:
diff
changeset
|
155 |
break; |
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Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
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|
156 |
} |
ba25891c3a9e
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
157 |
|
ba25891c3a9e
Revision: 200949
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parents:
diff
changeset
|
158 |
|
ba25891c3a9e
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
159 |
default: |
ba25891c3a9e
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
160 |
// Unexpected error opening cache file, leave |
ba25891c3a9e
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
161 |
User::LeaveIfError(err); |
ba25891c3a9e
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
162 |
break; |
ba25891c3a9e
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
163 |
|
ba25891c3a9e
Revision: 200949
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parents:
diff
changeset
|
164 |
} |
ba25891c3a9e
Revision: 200949
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parents:
diff
changeset
|
165 |
|
ba25891c3a9e
Revision: 200949
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parents:
diff
changeset
|
166 |
CleanupStack::PopAndDestroy(&fs); |
ba25891c3a9e
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
167 |
|
ba25891c3a9e
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
168 |
} |
ba25891c3a9e
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
169 |
|
ba25891c3a9e
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
170 |
void CSidCache::FindDirsL(RFs& aFs, RPointerArray<HBufC>& aSearchDirs) |
ba25891c3a9e
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
171 |
{ |
ba25891c3a9e
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
172 |
// Count() will increase if a subdirectory is encountered so don't 'optimise' |
ba25891c3a9e
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
173 |
// the loop invariant ! |
ba25891c3a9e
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
174 |
|
ba25891c3a9e
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
175 |
for (TInt i = 0; i < aSearchDirs.Count(); ++i) |
ba25891c3a9e
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
176 |
{ |
ba25891c3a9e
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
177 |
CDir* entries(0); |
ba25891c3a9e
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
178 |
CDir* subDirs(0); |
ba25891c3a9e
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
179 |
User::LeaveIfError(aFs.GetDir(*aSearchDirs[i], |
ba25891c3a9e
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
180 |
KEntryAttMatchMask, |
ba25891c3a9e
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
181 |
ESortByName, |
ba25891c3a9e
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
182 |
entries, |
ba25891c3a9e
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
183 |
subDirs)); |
ba25891c3a9e
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
184 |
delete entries; |
ba25891c3a9e
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
185 |
CleanupStack::PushL(subDirs); |
ba25891c3a9e
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
186 |
|
ba25891c3a9e
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
187 |
// Add all new directories to the directories to search |
ba25891c3a9e
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
188 |
TInt subDirCount(subDirs->Count()); |
ba25891c3a9e
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
189 |
for (TInt j = 0; j < subDirCount; ++j) |
ba25891c3a9e
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
190 |
{ |
ba25891c3a9e
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
191 |
const TEntry& entry = (*subDirs)[j]; |
ba25891c3a9e
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
192 |
TFileName name = *aSearchDirs[i]; |
ba25891c3a9e
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
193 |
name.Append(entry.iName); |
ba25891c3a9e
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
194 |
name.Append('\\'); |
ba25891c3a9e
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
195 |
HBufC* tmpDirName = name.AllocLC(); |
ba25891c3a9e
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
196 |
aSearchDirs.AppendL(tmpDirName); |
ba25891c3a9e
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
197 |
CleanupStack::Pop(tmpDirName); |
ba25891c3a9e
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
198 |
} |
ba25891c3a9e
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
199 |
CleanupStack::PopAndDestroy(subDirs); |
ba25891c3a9e
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
200 |
} |
ba25891c3a9e
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
201 |
} |
ba25891c3a9e
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
202 |
|
ba25891c3a9e
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
203 |
void CSidCache::ScanFileSystemL(RFs& aFs) |
ba25891c3a9e
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
204 |
{ |
ba25891c3a9e
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
205 |
// Find all sub-directories of z:\sys\bin |
ba25891c3a9e
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
206 |
RPointerArray<HBufC> searchDirs; |
ba25891c3a9e
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
207 |
CleanupResetAndDestroyPushL(searchDirs); |
ba25891c3a9e
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
208 |
|
ba25891c3a9e
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209 |
// Add the first (base) path to search |
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|
210 |
_LIT(KOSExeBasePath, "z:\\sys\\bin\\"); |
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|
211 |
HBufC* osExeBasePath = KOSExeBasePath().AllocLC(); |
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|
212 |
searchDirs.AppendL(osExeBasePath); |
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|
213 |
CleanupStack::Pop(osExeBasePath); |
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|
214 |
|
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|
215 |
FindDirsL(aFs, searchDirs); |
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|
216 |
|
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|
217 |
TUidType exeFileFilter(KExecutableImageUid); |
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218 |
TInt numDirs(searchDirs.Count()); |
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219 |
for (TInt i = 0; i < numDirs; ++i) |
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220 |
{ |
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221 |
CDir* dirContents(0); |
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|
222 |
User::LeaveIfError(aFs.GetDir(*searchDirs[i], exeFileFilter, ESortByName, dirContents)); |
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|
223 |
CleanupStack::PushL(dirContents); |
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|
224 |
|
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225 |
TInt numFiles(dirContents->Count()); |
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|
226 |
for (TInt j = 0; j < numFiles; ++j) |
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227 |
{ |
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228 |
TFileName name(*searchDirs[i]); |
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Revision: 200949
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229 |
const TEntry& entry = (*dirContents)[j]; |
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230 |
name.Append(entry.iName); |
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|
231 |
|
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232 |
// Ignore any files that aren't valid exes |
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Revision: 200949
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233 |
TSecurityInfo info; |
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234 |
TRAPD(err, SecurityInfo::RetrieveExecutableSecurityInfoL(aFs, name, info)); |
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|
235 |
|
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236 |
if (err == KErrNone) |
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237 |
{ |
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Revision: 200949
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238 |
TUid sid; |
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Revision: 200949
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|
239 |
sid.iUid = info.iSecureId.iId; |
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Revision: 200949
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240 |
iSidArray.AppendL(sid); |
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Revision: 200949
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241 |
} |
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242 |
} |
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Revision: 200949
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|
243 |
CleanupStack::PopAndDestroy(dirContents); |
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244 |
} |
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Revision: 200949
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245 |
CleanupStack::PopAndDestroy(&searchDirs); |
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246 |
} |
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|
247 |
|
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Revision: 200949
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248 |
TBool CSidCache::IsCachedL(TUid& aSid) |
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249 |
{ |
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|
250 |
|
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Revision: 200949
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|
251 |
TInt err = iSidArray.Find(aSid); |
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|
252 |
|
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|
253 |
if (err == KErrNotFound) |
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|
254 |
{ |
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Revision: 200949
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|
255 |
return EFalse; |
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|
256 |
} |
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Revision: 200949
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|
257 |
else if (err < 0) |
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|
258 |
{ |
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Revision: 200949
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|
259 |
User::Leave(err); |
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|
260 |
} |
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|
261 |
|
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Revision: 200949
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|
262 |
return ETrue; |
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|
263 |
|
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Revision: 200949
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|
264 |
} |
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Revision: 200949
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|
265 |
|
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Revision: 200949
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|
266 |
void CSidCache::ExternalizeL(RWriteStream& aStream) |
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|
267 |
{ |
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|
268 |
|
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Revision: 200949
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|
269 |
TInt32 count(iSidArray.Count()); |
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Revision: 200949
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|
270 |
aStream.WriteInt32L(count); |
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|
271 |
|
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Revision: 200949
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|
272 |
for (TInt i=0; i < count; i++) |
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Revision: 200949
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|
273 |
{ |
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Revision: 200949
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|
274 |
aStream.WriteInt32L(iSidArray[i].iUid); |
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Revision: 200949
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|
275 |
} |
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Revision: 200949
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|
276 |
|
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Revision: 200949
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|
277 |
aStream.CommitL(); |
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|
278 |
|
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Revision: 200949
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|
279 |
} |
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Revision: 200949
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diff
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|
280 |
|
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Revision: 200949
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|
281 |
void CSidCache::InternalizeL(RReadStream& aStream) |
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Revision: 200949
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|
282 |
{ |
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Revision: 200949
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|
283 |
iSidArray.Reset(); |
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Revision: 200949
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|
284 |
TInt32 count(aStream.ReadInt32L()); |
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Revision: 200949
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|
285 |
|
ba25891c3a9e
Revision: 200949
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|
286 |
for (TInt i = 0; i < count; i++) |
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Revision: 200949
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|
287 |
{ |
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Revision: 200949
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|
288 |
TUid sid; |
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Revision: 200949
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|
289 |
sid.iUid = aStream.ReadInt32L(); |
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Revision: 200949
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|
290 |
iSidArray.AppendL(sid); |
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Revision: 200949
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diff
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|
291 |
} |
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Revision: 200949
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diff
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|
292 |
|
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Revision: 200949
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diff
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|
293 |
} |
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Revision: 200949
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diff
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|
294 |
|
ba25891c3a9e
Revision: 200949
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|
295 |
CSidCache::~CSidCache() |
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Revision: 200949
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diff
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|
296 |
{ |
ba25891c3a9e
Revision: 200949
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|
297 |
iSidArray.Close(); |
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Revision: 200949
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diff
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|
298 |
} |
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Revision: 200949
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parents:
diff
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|
299 |
} |