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implemented RegOverridePredefKey()

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svn path=/trunk/; revision=18092
This commit is contained in:
Thomas Bluemel 2005-09-26 12:44:03 +00:00
parent 235187d761
commit 265d243da7
1 changed files with 108 additions and 36 deletions
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142
reactos/lib/advapi32/reg/reg.c
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@ -5,6 +5,7 @@
* FILE: lib/advapi32/reg/reg.c
* PURPOSE: Registry functions
* PROGRAMMER: Ariadne ( ariadne@xs4all.nl)
* Thomas Weidenmueller <w3seek@reactos.com>
* UPDATE HISTORY:
* Created 01/11/98
* 19990309 EA Stubs
@ -87,6 +88,54 @@ RegCleanup (VOID)
}
static NTSTATUS
OpenPredefinedKey(IN ULONG Index,
OUT HANDLE Handle)
{
NTSTATUS Status;
switch (Index)
{
case 0: /* HKEY_CLASSES_ROOT */
Status = OpenClassesRootKey (Handle);
break;
case 1: /* HKEY_CURRENT_USER */
Status = RtlOpenCurrentUser (MAXIMUM_ALLOWED,
Handle);
break;
case 2: /* HKEY_LOCAL_MACHINE */
Status = OpenLocalMachineKey (Handle);
break;
case 3: /* HKEY_USERS */
Status = OpenUsersKey (Handle);
break;
#if 0
case 4: /* HKEY_PERFORMANCE_DATA */
Status = OpenPerformanceDataKey (Handle);
break;
#endif
case 5: /* HKEY_CURRENT_CONFIG */
Status = OpenCurrentConfigKey (Handle);
break;
case 6: /* HKEY_DYN_DATA */
Status = STATUS_NOT_IMPLEMENTED;
break;
default:
WARN("MapDefaultHandle() no handle creator\n");
Status = STATUS_INVALID_PARAMETER;
break;
}
return Status;
}
static NTSTATUS
MapDefaultKey (OUT PHANDLE RealKey,
IN HKEY Key)
@ -127,42 +176,8 @@ MapDefaultKey (OUT PHANDLE RealKey,
if (DoOpen)
{
/* create/open the default handle */
switch (Index)
{
case 0: /* HKEY_CLASSES_ROOT */
Status = OpenClassesRootKey (Handle);
break;
case 1: /* HKEY_CURRENT_USER */
Status = RtlOpenCurrentUser (MAXIMUM_ALLOWED,
Status = OpenPredefinedKey(Index,
Handle);
break;
case 2: /* HKEY_LOCAL_MACHINE */
Status = OpenLocalMachineKey (Handle);
break;
case 3: /* HKEY_USERS */
Status = OpenUsersKey (Handle);
break;
#if 0
case 4: /* HKEY_PERFORMANCE_DATA */
Status = OpenPerformanceDataKey (Handle);
break;
#endif
case 5: /* HKEY_CURRENT_CONFIG */
Status = OpenCurrentConfigKey (Handle);
break;
case 6: /* HKEY_DYN_DATA */
Status = STATUS_NOT_IMPLEMENTED;
break;
default:
WARN("MapDefaultHandle() no handle creator\n");
Status = STATUS_INVALID_PARAMETER;
break;
}
}
if (NT_SUCCESS(Status))
@ -293,6 +308,63 @@ RegDisablePredefinedCacheEx(VOID)
}
/************************************************************************
* RegOverridePredefKey
*
* @implemented
*/
LONG STDCALL
RegOverridePredefKey(IN HKEY hKey,
IN HKEY hNewHKey OPTIONAL)
{
LONG ErrorCode = ERROR_SUCCESS;
if (hKey == HKEY_CLASSES_ROOT ||
hKey == HKEY_CURRENT_CONFIG ||
hKey == HKEY_CURRENT_USER ||
hKey == HKEY_LOCAL_MACHINE ||
hKey == HKEY_PERFORMANCE_DATA ||
hKey == HKEY_USERS)
{
PHANDLE Handle;
ULONG Index;
Index = (ULONG)hKey & 0x0FFFFFFF;
Handle = &DefaultHandleTable[Index];
if (hNewHKey == NULL)
{
/* restore the default mapping */
NTSTATUS Status = OpenPredefinedKey(Index,
&hNewHKey);
if (!NT_SUCCESS(Status))
{
return RtlNtStatusToDosError(Status);
}
ASSERT(hNewHKey != NULL);
}
RtlEnterCriticalSection (&HandleTableCS);
/* close the currently mapped handle if existing */
if (*Handle != NULL)
{
NtClose(*Handle);
}
/* update the mapping */
*Handle = hNewHKey;
RtlLeaveCriticalSection (&HandleTableCS);
}
else
ErrorCode = ERROR_INVALID_HANDLE;
return ErrorCode;
}
/************************************************************************
* RegCloseKey
*