#include "wuauserv.h"

Include dependency graph for wuauserv.c:

Functions
static VOID	UpdateServiceStatus (DWORD dwState)

static DWORD WINAPI	ServiceControlHandler (DWORD dwControl, DWORD dwEventType, LPVOID lpEventData, LPVOID lpContext)

VOID WINAPI	ServiceMain (DWORD argc, LPTSTR *argv)

BOOL WINAPI	DllMain (HINSTANCE hinstDLL, DWORD fdwReason, LPVOID lpvReserved)

Variables
static WCHAR	ServiceName [] = L"wuauserv"

static SERVICE_STATUS_HANDLE	ServiceStatusHandle

static SERVICE_STATUS	ServiceStatus

static HANDLE	hStopEvent = NULL

Function Documentation

◆ DllMain()

BOOL WINAPI DllMain	(	HINSTANCE	hinstDLL,
		DWORD	fdwReason,
		LPVOID	lpvReserved
	)

Definition at line 122 of file wuauserv.c.

{
    switch (fdwReason)
    {
        case DLL_PROCESS_ATTACH:
            DisableThreadLibraryCalls(hinstDLL);
            break;
 
        case DLL_PROCESS_DETACH:
            break;
    }
 
    return TRUE;
}

◆ ServiceControlHandler()

static DWORD WINAPI ServiceControlHandler	(	DWORD	dwControl,
		DWORD	dwEventType,
		LPVOID	lpEventData,
		LPVOID	lpContext
	)

static

Definition at line 48 of file wuauserv.c.

{
    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;
    }
}

Referenced by ServiceMain().

◆ ServiceMain()

VOID WINAPI ServiceMain	(	DWORD	argc,
		LPTSTR *	argv
	)

Definition at line 89 of file wuauserv.c.

{
    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);
}

◆ UpdateServiceStatus()

static VOID UpdateServiceStatus ( DWORD dwState )

static

Definition at line 23 of file wuauserv.c.

{
    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(%lu) called\n", dwState);
}