programs/winmgmt/main.c

   1 /*
   2  * Copyright 2018 Hans Leidekker for CodeWeavers
   3  *
   4  * This library is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU Lesser General Public
   6  * License as published by the Free Software Foundation; either
   7  * version 2.1 of the License, or (at your option) any later version.
   8  *
   9  * This library is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12  * Lesser General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU Lesser General Public
  15  * License along with this library; if not, write to the Free Software
  16  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  17  */
  18
  19 #define WIN32_LEAN_AND_MEAN
  20
  21 #include <windows.h>
  22 #include <winsvc.h>
  23 #include "wine/debug.h"
  24
  25 WINE_DEFAULT_DEBUG_CHANNEL(winmgmt);
  26
  27 static WCHAR winmgmtW[] = L"Winmgmt";
  28
  29 static SERVICE_STATUS_HANDLE service_handle;
  30 static HANDLE stop_event;
  31
  32 static DWORD WINAPI service_handler( DWORD ctrl, DWORD event_type, LPVOID event_data, LPVOID context )
  33 {
  34     SERVICE_STATUS status;
  35
  36     status.dwServiceType             = SERVICE_WIN32;
  37     status.dwControlsAccepted        = SERVICE_ACCEPT_STOP;
  38     status.dwWin32ExitCode           = 0;
  39     status.dwServiceSpecificExitCode = 0;
  40     status.dwCheckPoint              = 0;
  41     status.dwWaitHint                = 0;
  42
  43     switch(ctrl)
  44     {
  45     case SERVICE_CONTROL_STOP:
  46     case SERVICE_CONTROL_SHUTDOWN:
  47         TRACE( "shutting down\n" );
  48         status.dwCurrentState     = SERVICE_STOP_PENDING;
  49         status.dwControlsAccepted = 0;
  50         SetServiceStatus( service_handle, &status );
  51         SetEvent( stop_event );
  52         return NO_ERROR;
  53     default:
  54         FIXME( "got service ctrl %lx\n", ctrl );
  55         status.dwCurrentState = SERVICE_RUNNING;
  56         SetServiceStatus( service_handle, &status );
  57         return NO_ERROR;
  58     }
  59 }
  60
  61 static void WINAPI ServiceMain( DWORD argc, LPWSTR *argv )
  62 {
  63     SERVICE_STATUS status;
  64
  65     TRACE( "starting service\n" );
  66
  67     stop_event = CreateEventW( NULL, TRUE, FALSE, NULL );
  68
  69     service_handle = RegisterServiceCtrlHandlerExW( winmgmtW, service_handler, NULL );
  70     if (!service_handle)
  71         return;
  72
  73     status.dwServiceType             = SERVICE_WIN32;
  74     status.dwCurrentState            = SERVICE_RUNNING;
  75     status.dwControlsAccepted        = SERVICE_ACCEPT_STOP | SERVICE_ACCEPT_SHUTDOWN;
  76     status.dwWin32ExitCode           = 0;
  77     status.dwServiceSpecificExitCode = 0;
  78     status.dwCheckPoint              = 0;
  79     status.dwWaitHint                = 10000;
  80     SetServiceStatus( service_handle, &status );
  81
  82     WaitForSingleObject( stop_event, INFINITE );
  83
  84     status.dwCurrentState     = SERVICE_STOPPED;
  85     status.dwControlsAccepted = 0;
  86     SetServiceStatus( service_handle, &status );
  87     TRACE( "service stopped\n" );
  88 }
  89
  90 int __cdecl wmain( int argc, WCHAR *argv[] )
  91 {
  92     static const SERVICE_TABLE_ENTRYW service_table[] =
  93     {
  94         { winmgmtW, ServiceMain },
  95         { NULL, NULL }
  96     };
  97
  98     StartServiceCtrlDispatcherW( service_table );
  99     return 0;
 100 }