638 lines
14 KiB
C++
638 lines
14 KiB
C++
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//+-----------------------------------------------------------------------
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//
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// File: PARAM.C
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//
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// Contents: Parameter code
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//
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//
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// History: 28 Feb 92 RichardW Created
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//
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//------------------------------------------------------------------------
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#include <lsapch.hxx>
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extern "C"
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{
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extern PWSTR pszPreferred;
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}
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#define MACHINERIDKEY L"MACHINERID"
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WCHAR szLsaPath[] = L"System\\CurrentControlSet\\Control\\Lsa";
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WCHAR szOthersValue[] = L"Security Packages";
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WCHAR szOldValue[] = L"Authentication Packages";
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WCHAR szNonceLagValue[] = L"Clock Skew";
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WCHAR szHowMuchValue[] = L"How Much";
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WCHAR szDisableSupPopups[] = L"DisablePopups";
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WCHAR szPreferredPackage[] = L"Preferred";
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WCHAR szGeneralThreadLifespan[] = L"GeneralThreadLifespan";
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WCHAR szDedicatedThreadLifespan[] = L"DedicatedThreadLifespan";
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HKEY hDSKey;
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HANDLE hRegNotifyEvent;
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PVOID pvParamScav;
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PWSTR ppszDefault[] = {L"Kerberos", L"NTLM", NULL};
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// Will build an argv style array of DLLs to load as packages here:
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extern PWSTR * ppszPackages;
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extern PWSTR * ppszOldPkgs;
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extern PWSTR pszPreferred;
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#if DBG
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extern DWORD BreakFlags;
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extern DWORD NoUnload;
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#endif
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SECURITY_STRING ssMachineRid;
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//+-------------------------------------------------------------------------
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//
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// Function: GetRegistryString
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//
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// Synopsis: Gets a string from the registry
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//
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// Effects: If type is REG_EXPAND_SZ, string is expanded.
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// If type is REG_MULTI_SZ, string is (left alone?)
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//
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// Arguments: hRootKey -- HKEY to start at
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// pszSubKey -- Key to look at
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// pszValue -- Value to look at
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// pszData -- Buffer to place string
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// pcbData -- Size (in/out) of buffer
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//
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// Requires:
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//
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// Returns:
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//
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// Notes:
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//
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//--------------------------------------------------------------------------
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NTSTATUS
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GetRegistryString( HKEY hRootKey,
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PWSTR pszSubkey,
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PWSTR pszValue,
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PWSTR pszData,
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PDWORD pcbData)
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{
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HKEY hKey;
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int Status;
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ULONG type;
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DWORD dwSize = *pcbData;
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Status = RegOpenKey(hRootKey, pszSubkey, &hKey);
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if (Status != ERROR_SUCCESS)
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{
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DebugLog((DEB_ERROR, "Open of %ws failed, %d\n", pszSubkey, Status));
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return(STATUS_OBJECT_NAME_NOT_FOUND);
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}
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// First, call query value and make sure this is a correct type
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Status = RegQueryValueEx( hKey,
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pszValue,
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NULL,
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&type,
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NULL,
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&dwSize);
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if ((Status != ERROR_SUCCESS) && (Status != ERROR_MORE_DATA))
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{
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DebugLog((DEB_TRACE, "QueryValueEx of %ws failed, %d\n", pszValue, Status));
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(void) RegCloseKey(hKey);
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if (Status == ERROR_FILE_NOT_FOUND)
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{
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return(STATUS_OBJECT_NAME_NOT_FOUND);
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}
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return(STATUS_UNSUCCESSFUL);
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}
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if ((type != REG_SZ) && (type != REG_MULTI_SZ) && (type != REG_EXPAND_SZ) )
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{
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DebugLog((DEB_ERROR, "Type = %d, returning now\n", type));
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(void) RegCloseKey(hKey);
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return(STATUS_UNSUCCESSFUL);
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}
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Status = RegQueryValueEx( hKey,
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pszValue,
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NULL,
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&type,
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(PBYTE) pszData,
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pcbData);
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(void) RegCloseKey(hKey);
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if (Status != ERROR_SUCCESS)
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{
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if (Status == ERROR_INSUFFICIENT_BUFFER)
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{
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return(STATUS_BUFFER_TOO_SMALL);
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}
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DebugLog((DEB_ERROR, "QueryValueEx of %ws returned %d\n", pszValue, Status));
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return(STATUS_UNSUCCESSFUL);
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}
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if (type == REG_EXPAND_SZ)
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{
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*pcbData = ExpandEnvironmentStrings(pszData, pszData, dwSize);
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}
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return(STATUS_SUCCESS);
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}
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//+---------------------------------------------------------------------------
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//
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// Function: GetRegistryDword
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//
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// Synopsis: Gets a DWORD from the registry
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//
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// Effects:
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//
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// Arguments: [hPrimaryKey] -- Key to start from
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// [pszKey] -- Name of the subkey
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// [pszValue] -- Name of the value
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// [pdwValue] -- returned DWORD
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//
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// Returns: S_OK, or SEC_E_INVALID_HANDLE
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//
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// History: 3-31-93 RichardW Created
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//
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//----------------------------------------------------------------------------
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HRESULT
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GetRegistryDword(HKEY hPrimaryKey,
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PWSTR pszKey,
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PWSTR pszValue,
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DWORD * pdwValue)
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{
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HKEY hKey;
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DWORD cbDword = sizeof(DWORD);
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DWORD dwType;
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int err;
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err = RegOpenKey(hPrimaryKey, pszKey, &hKey);
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if (err) {
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return(SEC_E_INVALID_HANDLE);
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}
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err = RegQueryValueEx( hKey,
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pszValue,
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NULL,
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&dwType,
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(PBYTE) pdwValue,
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&cbDword);
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(void) RegCloseKey(hKey);
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if (err || (dwType != REG_DWORD))
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{
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return(SEC_E_INVALID_HANDLE);
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}
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return(S_OK);
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}
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HRESULT
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SpmGetMachineName(void)
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{
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HRESULT hr = S_OK;
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WCHAR wszMachName [MAX_COMPUTERNAME_LENGTH + 1];
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DWORD dwSize = MAX_COMPUTERNAME_LENGTH + 1;
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if (!GetComputerName(
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wszMachName,
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&dwSize))
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{
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return(STATUS_UNSUCCESSFUL);
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}
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MachineName.Buffer = (LPWSTR) LsapAllocateLsaHeap((wcslen(wszMachName)+1) * sizeof(WCHAR));
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if (MachineName.Buffer == NULL)
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{
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return(STATUS_INSUFFICIENT_RESOURCES);
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}
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wcscpy(MachineName.Buffer, wszMachName);
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RtlInitUnicodeString(
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&MachineName,
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MachineName.Buffer
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);
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return(STATUS_SUCCESS);
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}
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//+---------------------------------------------------------------------------
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//
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// Function: ParameterNotify
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//
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// Synopsis: Function called when the registry key for DS is changed
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//
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// Arguments: [pvEntry] -- ignored
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//
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// History: 6-08-93 RichardW Created
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//
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//----------------------------------------------------------------------------
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DWORD
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ParameterNotify(PVOID pvEntry)
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{
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ULONG NewState;
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HANDLE hThread = 0;
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DWORD tid;
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int err;
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err = RegNotifyChangeKeyValue( hDSKey, FALSE,
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REG_NOTIFY_CHANGE_LAST_SET,
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hRegNotifyEvent,
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TRUE);
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if (err)
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{
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DebugLog((DEB_WARN, "Got %d from trying to start RegNotifyChangeKeyValue again\n",
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err));
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}
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return(0);
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}
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//+---------------------------------------------------------------------------
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//
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// Function: LoadParameters
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//
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// Synopsis: Loads operating parameters from the registry
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//
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// Effects:
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//
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// Arguments: [void] --
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//
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// Requires:
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//
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// Returns:
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//
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// Signals:
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//
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// Modifies:
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//
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// Algorithm:
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//
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// History: 3-31-93 RichardW Created
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//
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// Notes:
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//
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//----------------------------------------------------------------------------
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NTSTATUS
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LoadParameters(
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VOID
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)
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{
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int lcPackages = 0;
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int cOldPkgs = 0;
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int iPackage = 0;
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PWSTR pszAlternate;
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PWSTR pszOldPkgs;
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PWSTR pszScan;
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DWORD dwBuffer = 64;
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HRESULT scRet;
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//
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// Get the parameters that can change during a boot.
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//
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//
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// Get the machine name
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//
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scRet = SpmGetMachineName();
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if (!NT_SUCCESS(scRet)) {
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return(scRet);
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}
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//
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// Get the preferred package
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//
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dwBuffer = 128 ;
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pszPreferred = (PWSTR) LsapAllocateLsaHeap( dwBuffer );
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if ( !pszPreferred )
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{
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dwBuffer = 0 ;
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}
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scRet = GetRegistryString( HKEY_LOCAL_MACHINE,
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szLsaPath,
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szPreferredPackage,
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pszPreferred,
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&dwBuffer);
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if (scRet == STATUS_BUFFER_TOO_SMALL)
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{
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LsapFreeLsaHeap(pszPreferred);
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pszPreferred = (PWSTR)LsapAllocateLsaHeap(dwBuffer);
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if ( pszPreferred )
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{
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scRet = GetRegistryString( HKEY_LOCAL_MACHINE,
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szLsaPath,
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szPreferredPackage,
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pszPreferred,
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&dwBuffer);
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}
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}
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else
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{
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if ( pszPreferred )
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{
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LsapFreeLsaHeap( pszPreferred );
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pszPreferred = NULL ;
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}
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}
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//
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// Set the default packages
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//
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ppszPackages = ppszDefault;
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//
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// Now, find out all the other ones. First, NT5 packages:
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//
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dwBuffer = 128;
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pszAlternate = (PWSTR)LsapAllocateLsaHeap(dwBuffer);
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if (!pszAlternate)
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{
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return(STATUS_INSUFFICIENT_RESOURCES);
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}
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*pszAlternate = L'\0';
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scRet = GetRegistryString( HKEY_LOCAL_MACHINE,
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szLsaPath,
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szOthersValue,
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pszAlternate,
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&dwBuffer);
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if (scRet == STATUS_BUFFER_TOO_SMALL)
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{
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LsapFreeLsaHeap(pszAlternate);
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pszAlternate = (PWSTR)LsapAllocateLsaHeap(dwBuffer);
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if (!pszAlternate)
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{
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return(STATUS_INSUFFICIENT_RESOURCES);
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}
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*pszAlternate = L'\0';
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scRet = GetRegistryString( HKEY_LOCAL_MACHINE,
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szLsaPath,
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szOthersValue,
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pszAlternate,
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&dwBuffer);
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if (FAILED(scRet)) {
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return(scRet);
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}
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}
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if (NT_SUCCESS(scRet))
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{
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pszScan = pszAlternate;
|
||
|
|
|
||
|
|
while (*pszScan)
|
||
|
|
{
|
||
|
|
while (*pszScan) {
|
||
|
|
pszScan++;
|
||
|
|
}
|
||
|
|
|
||
|
|
lcPackages++;
|
||
|
|
pszScan++;
|
||
|
|
}
|
||
|
|
|
||
|
|
} else if (scRet != STATUS_OBJECT_NAME_NOT_FOUND) {
|
||
|
|
LsapFreeLsaHeap(pszAlternate);
|
||
|
|
pszAlternate = NULL;
|
||
|
|
return(scRet);
|
||
|
|
} else {
|
||
|
|
LsapFreeLsaHeap(pszAlternate);
|
||
|
|
pszAlternate = NULL;
|
||
|
|
}
|
||
|
|
|
||
|
|
dwBuffer = 128;
|
||
|
|
pszOldPkgs = (PWSTR)LsapAllocateLsaHeap(dwBuffer);
|
||
|
|
if (!pszOldPkgs)
|
||
|
|
{
|
||
|
|
return(STATUS_INSUFFICIENT_RESOURCES);
|
||
|
|
}
|
||
|
|
*pszOldPkgs = L'\0';
|
||
|
|
|
||
|
|
|
||
|
|
scRet = GetRegistryString( HKEY_LOCAL_MACHINE,
|
||
|
|
szLsaPath,
|
||
|
|
szOldValue,
|
||
|
|
pszOldPkgs,
|
||
|
|
&dwBuffer);
|
||
|
|
|
||
|
|
if (scRet == STATUS_BUFFER_TOO_SMALL)
|
||
|
|
{
|
||
|
|
LsapFreeLsaHeap(pszOldPkgs);
|
||
|
|
|
||
|
|
pszOldPkgs = (PWSTR)LsapAllocateLsaHeap(dwBuffer);
|
||
|
|
if (!pszOldPkgs)
|
||
|
|
{
|
||
|
|
return(STATUS_INSUFFICIENT_RESOURCES);
|
||
|
|
}
|
||
|
|
*pszOldPkgs = L'\0';
|
||
|
|
scRet = GetRegistryString( HKEY_LOCAL_MACHINE,
|
||
|
|
szLsaPath,
|
||
|
|
szOldValue,
|
||
|
|
pszOldPkgs,
|
||
|
|
&dwBuffer);
|
||
|
|
|
||
|
|
if (!NT_SUCCESS(scRet)) {
|
||
|
|
return(scRet);
|
||
|
|
}
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
if (NT_SUCCESS(scRet))
|
||
|
|
{
|
||
|
|
pszScan = pszOldPkgs;
|
||
|
|
|
||
|
|
while (*pszScan)
|
||
|
|
{
|
||
|
|
while (*pszScan) {
|
||
|
|
pszScan++;
|
||
|
|
}
|
||
|
|
|
||
|
|
cOldPkgs++;
|
||
|
|
pszScan++;
|
||
|
|
}
|
||
|
|
} else if (scRet != STATUS_OBJECT_NAME_NOT_FOUND) {
|
||
|
|
LsapFreeLsaHeap(pszOldPkgs);
|
||
|
|
pszOldPkgs = NULL;
|
||
|
|
return(scRet);
|
||
|
|
} else {
|
||
|
|
LsapFreeLsaHeap(pszOldPkgs);
|
||
|
|
pszOldPkgs = NULL;
|
||
|
|
}
|
||
|
|
|
||
|
|
ppszPackages = (PWSTR *)LsapAllocateLsaHeap((lcPackages + 1) * sizeof(PWSTR));
|
||
|
|
if (!ppszPackages)
|
||
|
|
{
|
||
|
|
return(STATUS_INSUFFICIENT_RESOURCES);
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
//
|
||
|
|
// Add any alternate packages
|
||
|
|
//
|
||
|
|
|
||
|
|
if (pszAlternate != NULL)
|
||
|
|
{
|
||
|
|
pszScan = pszAlternate;
|
||
|
|
|
||
|
|
while (*pszScan)
|
||
|
|
{
|
||
|
|
ppszPackages[iPackage++] = pszScan;
|
||
|
|
while (*pszScan++);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
ppszPackages[iPackage] = NULL;
|
||
|
|
|
||
|
|
//
|
||
|
|
// Note: we don't allocate one extra, since we don't actually include
|
||
|
|
// the MSV package name here (we simulate the package in msvlayer.c)
|
||
|
|
//
|
||
|
|
|
||
|
|
ppszOldPkgs = (PWSTR *)LsapAllocateLsaHeap((cOldPkgs+1) * sizeof(PWSTR));
|
||
|
|
if (!ppszOldPkgs)
|
||
|
|
{
|
||
|
|
return(STATUS_INSUFFICIENT_RESOURCES);
|
||
|
|
}
|
||
|
|
|
||
|
|
iPackage = 0;
|
||
|
|
if (pszOldPkgs != NULL)
|
||
|
|
{
|
||
|
|
pszScan = pszOldPkgs;
|
||
|
|
|
||
|
|
|
||
|
|
while (*pszScan)
|
||
|
|
{
|
||
|
|
ppszOldPkgs[iPackage++] = pszScan;
|
||
|
|
while (*pszScan++);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
cOldPkgs = iPackage;
|
||
|
|
ppszOldPkgs[iPackage] = NULL;
|
||
|
|
|
||
|
|
return(S_OK);
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
BOOL
|
||
|
|
AddPackageToRegistry(
|
||
|
|
PSECURITY_STRING Package
|
||
|
|
)
|
||
|
|
{
|
||
|
|
PWSTR Buffer;
|
||
|
|
DWORD Length;
|
||
|
|
DWORD Type;
|
||
|
|
int err;
|
||
|
|
HKEY hKey;
|
||
|
|
|
||
|
|
err = RegOpenKeyEx( HKEY_LOCAL_MACHINE,
|
||
|
|
szLsaPath,
|
||
|
|
0,
|
||
|
|
KEY_READ | KEY_WRITE,
|
||
|
|
&hKey );
|
||
|
|
|
||
|
|
if ( err )
|
||
|
|
{
|
||
|
|
return( FALSE );
|
||
|
|
}
|
||
|
|
|
||
|
|
Length = 0;
|
||
|
|
|
||
|
|
err = RegQueryValueEx( hKey,
|
||
|
|
szOthersValue,
|
||
|
|
0,
|
||
|
|
&Type,
|
||
|
|
NULL,
|
||
|
|
&Length );
|
||
|
|
|
||
|
|
Buffer = (PWSTR) LsapAllocateLsaHeap( Length + Package->Length + 2 );
|
||
|
|
|
||
|
|
if ( !Buffer )
|
||
|
|
{
|
||
|
|
RegCloseKey( hKey );
|
||
|
|
|
||
|
|
return FALSE ;
|
||
|
|
}
|
||
|
|
|
||
|
|
RegQueryValueEx( hKey,
|
||
|
|
szOthersValue,
|
||
|
|
0,
|
||
|
|
&Type,
|
||
|
|
(PUCHAR) Buffer,
|
||
|
|
&Length );
|
||
|
|
|
||
|
|
CopyMemory( &Buffer[Length + 1],
|
||
|
|
Package->Buffer,
|
||
|
|
Package->Length + 2 );
|
||
|
|
|
||
|
|
Length = Length + Package->Length + 2;
|
||
|
|
|
||
|
|
RegSetValueEx( hKey,
|
||
|
|
szOthersValue,
|
||
|
|
0,
|
||
|
|
REG_MULTI_SZ,
|
||
|
|
(PUCHAR) Buffer,
|
||
|
|
Length );
|
||
|
|
|
||
|
|
RegCloseKey( hKey );
|
||
|
|
|
||
|
|
return( TRUE );
|
||
|
|
|
||
|
|
|
||
|
|
}
|