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implemented RegOverridePredefKey()
svn path=/trunk/; revision=18092
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parent
235187d761
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265d243da7
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@ -5,6 +5,7 @@
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* FILE: lib/advapi32/reg/reg.c
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* PURPOSE: Registry functions
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* PROGRAMMER: Ariadne ( ariadne@xs4all.nl)
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* Thomas Weidenmueller <w3seek@reactos.com>
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* UPDATE HISTORY:
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* Created 01/11/98
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* 19990309 EA Stubs
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@ -87,6 +88,54 @@ RegCleanup (VOID)
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}
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static NTSTATUS
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OpenPredefinedKey(IN ULONG Index,
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OUT HANDLE Handle)
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{
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NTSTATUS Status;
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switch (Index)
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{
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case 0: /* HKEY_CLASSES_ROOT */
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Status = OpenClassesRootKey (Handle);
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break;
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case 1: /* HKEY_CURRENT_USER */
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Status = RtlOpenCurrentUser (MAXIMUM_ALLOWED,
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Handle);
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break;
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case 2: /* HKEY_LOCAL_MACHINE */
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Status = OpenLocalMachineKey (Handle);
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break;
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case 3: /* HKEY_USERS */
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Status = OpenUsersKey (Handle);
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break;
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#if 0
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case 4: /* HKEY_PERFORMANCE_DATA */
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Status = OpenPerformanceDataKey (Handle);
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break;
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#endif
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case 5: /* HKEY_CURRENT_CONFIG */
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Status = OpenCurrentConfigKey (Handle);
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break;
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case 6: /* HKEY_DYN_DATA */
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Status = STATUS_NOT_IMPLEMENTED;
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break;
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default:
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WARN("MapDefaultHandle() no handle creator\n");
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Status = STATUS_INVALID_PARAMETER;
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break;
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}
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return Status;
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}
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static NTSTATUS
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MapDefaultKey (OUT PHANDLE RealKey,
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IN HKEY Key)
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@ -127,42 +176,8 @@ MapDefaultKey (OUT PHANDLE RealKey,
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if (DoOpen)
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{
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/* create/open the default handle */
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switch (Index)
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{
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case 0: /* HKEY_CLASSES_ROOT */
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Status = OpenClassesRootKey (Handle);
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break;
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case 1: /* HKEY_CURRENT_USER */
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Status = RtlOpenCurrentUser (MAXIMUM_ALLOWED,
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Handle);
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break;
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case 2: /* HKEY_LOCAL_MACHINE */
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Status = OpenLocalMachineKey (Handle);
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break;
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case 3: /* HKEY_USERS */
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Status = OpenUsersKey (Handle);
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break;
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#if 0
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case 4: /* HKEY_PERFORMANCE_DATA */
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Status = OpenPerformanceDataKey (Handle);
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break;
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#endif
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case 5: /* HKEY_CURRENT_CONFIG */
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Status = OpenCurrentConfigKey (Handle);
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break;
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case 6: /* HKEY_DYN_DATA */
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Status = STATUS_NOT_IMPLEMENTED;
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break;
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default:
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WARN("MapDefaultHandle() no handle creator\n");
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Status = STATUS_INVALID_PARAMETER;
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break;
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}
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Status = OpenPredefinedKey(Index,
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Handle);
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}
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if (NT_SUCCESS(Status))
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@ -293,6 +308,63 @@ RegDisablePredefinedCacheEx(VOID)
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}
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/************************************************************************
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* RegOverridePredefKey
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*
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* @implemented
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*/
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LONG STDCALL
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RegOverridePredefKey(IN HKEY hKey,
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IN HKEY hNewHKey OPTIONAL)
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{
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LONG ErrorCode = ERROR_SUCCESS;
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if (hKey == HKEY_CLASSES_ROOT ||
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hKey == HKEY_CURRENT_CONFIG ||
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hKey == HKEY_CURRENT_USER ||
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hKey == HKEY_LOCAL_MACHINE ||
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hKey == HKEY_PERFORMANCE_DATA ||
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hKey == HKEY_USERS)
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{
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PHANDLE Handle;
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ULONG Index;
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Index = (ULONG)hKey & 0x0FFFFFFF;
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Handle = &DefaultHandleTable[Index];
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if (hNewHKey == NULL)
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{
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/* restore the default mapping */
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NTSTATUS Status = OpenPredefinedKey(Index,
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&hNewHKey);
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if (!NT_SUCCESS(Status))
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{
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return RtlNtStatusToDosError(Status);
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}
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ASSERT(hNewHKey != NULL);
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}
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RtlEnterCriticalSection (&HandleTableCS);
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/* close the currently mapped handle if existing */
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if (*Handle != NULL)
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{
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NtClose(*Handle);
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}
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/* update the mapping */
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*Handle = hNewHKey;
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RtlLeaveCriticalSection (&HandleTableCS);
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}
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else
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ErrorCode = ERROR_INVALID_HANDLE;
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return ErrorCode;
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}
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/************************************************************************
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* RegCloseKey
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*
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