reactos/base/services/wuauserv/wuauserv.c

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/*
* PROJECT: ReactOS Update Service
* LICENSE: GPL-2.0+ (https://spdx.org/licenses/GPL-2.0+)
* PURPOSE: Automatic Updates service stub.
* Stub is required for some application at the installation phase.
* COPYRIGHT: Copyright 2018 Denis Malikov (filedem@gmail.com)
*/
#include "wuauserv.h"
/* GLOBALS ******************************************************************/
static WCHAR ServiceName[] = L"wuauserv";
static SERVICE_STATUS_HANDLE ServiceStatusHandle;
static SERVICE_STATUS ServiceStatus;
static HANDLE hStopEvent = NULL;
/* FUNCTIONS *****************************************************************/
static VOID
UpdateServiceStatus(DWORD dwState)
{
ServiceStatus.dwServiceType = SERVICE_WIN32_OWN_PROCESS;
ServiceStatus.dwCurrentState = dwState;
ServiceStatus.dwControlsAccepted = 0;
ServiceStatus.dwWin32ExitCode = 0;
ServiceStatus.dwServiceSpecificExitCode = 0;
ServiceStatus.dwCheckPoint = 0;
if (dwState == SERVICE_START_PENDING ||
dwState == SERVICE_STOP_PENDING ||
dwState == SERVICE_PAUSE_PENDING ||
dwState == SERVICE_CONTINUE_PENDING)
ServiceStatus.dwWaitHint = 1000;
else
ServiceStatus.dwWaitHint = 0;
if (dwState == SERVICE_RUNNING)
ServiceStatus.dwControlsAccepted = SERVICE_ACCEPT_STOP | SERVICE_ACCEPT_SHUTDOWN;
SetServiceStatus(ServiceStatusHandle,
&ServiceStatus);
DPRINT1("WU UpdateServiceStatus() called\n");
}
static DWORD WINAPI
ServiceControlHandler(DWORD dwControl,
DWORD dwEventType,
LPVOID lpEventData,
LPVOID lpContext)
{
switch (dwControl)
{
case SERVICE_CONTROL_STOP:
DPRINT1("WU ServiceControlHandler() SERVICE_CONTROL_STOP received\n");
SetEvent(hStopEvent);
UpdateServiceStatus(SERVICE_STOP_PENDING);
return ERROR_SUCCESS;
case SERVICE_CONTROL_PAUSE:
DPRINT1("WU ServiceControlHandler() SERVICE_CONTROL_PAUSE received\n");
UpdateServiceStatus(SERVICE_PAUSED);
return ERROR_SUCCESS;
case SERVICE_CONTROL_CONTINUE:
DPRINT1("WU ServiceControlHandler() SERVICE_CONTROL_CONTINUE received\n");
UpdateServiceStatus(SERVICE_RUNNING);
return ERROR_SUCCESS;
case SERVICE_CONTROL_INTERROGATE:
DPRINT1("WU ServiceControlHandler() SERVICE_CONTROL_INTERROGATE received\n");
SetServiceStatus(ServiceStatusHandle,
&ServiceStatus);
return ERROR_SUCCESS;
case SERVICE_CONTROL_SHUTDOWN:
DPRINT1("WU ServiceControlHandler() SERVICE_CONTROL_SHUTDOWN received\n");
SetEvent(hStopEvent);
UpdateServiceStatus(SERVICE_STOP_PENDING);
return ERROR_SUCCESS;
default :
DPRINT1("WU ServiceControlHandler() Control %lu received\n", dwControl);
return ERROR_CALL_NOT_IMPLEMENTED;
}
}
VOID WINAPI
ServiceMain(DWORD argc, LPTSTR *argv)
{
UNREFERENCED_PARAMETER(argc);
UNREFERENCED_PARAMETER(argv);
DPRINT("WU ServiceMain() called\n");
ServiceStatusHandle = RegisterServiceCtrlHandlerExW(ServiceName,
ServiceControlHandler,
NULL);
if (!ServiceStatusHandle)
{
DPRINT1("RegisterServiceCtrlHandlerExW() failed! (Error %lu)\n", GetLastError());
return;
}
hStopEvent = CreateEventW(NULL, TRUE, FALSE, NULL);
if (hStopEvent == NULL)
{
DPRINT1("CreateEvent() failed! (Error %lu)\n", GetLastError());
goto done;
}
UpdateServiceStatus(SERVICE_RUNNING);
WaitForSingleObject(hStopEvent, INFINITE);
CloseHandle(hStopEvent);
done:
UpdateServiceStatus(SERVICE_STOPPED);
}
BOOL WINAPI
DllMain(HINSTANCE hinstDLL,
DWORD fdwReason,
LPVOID lpvReserved)
{
switch (fdwReason)
{
case DLL_PROCESS_ATTACH:
DisableThreadLibraryCalls(hinstDLL);
break;
case DLL_PROCESS_DETACH:
break;
}
return TRUE;
}