programs/msiexec/service.c

   1 /*
   2  * msiexec.exe implementation
   3  *
   4  * Copyright 2007 Google (James Hawkins)
   5  *
   6  * This library is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Lesser General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 2.1 of the License, or (at your option) any later version.
  10  *
  11  * This library is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * Lesser General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Lesser General Public
  17  * License along with this library; if not, write to the Free Software
  18  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  19  */
  20
  21 #define WIN32_LEAN_AND_MEAN
  22
  23 #include <windows.h>
  24 #include <stdio.h>
  25
  26 #include "wine/debug.h"
  27
  28 WINE_DEFAULT_DEBUG_CHANNEL(msiexec);
  29
  30 static SERVICE_STATUS_HANDLE hstatus;
  31
  32 static HANDLE thread;
  33 static HANDLE kill_event;
  34
  35 void KillService(void)
  36 {
  37     WINE_TRACE("Killing service\n");
  38     SetEvent(kill_event);
  39 }
  40
  41 static BOOL UpdateSCMStatus(DWORD dwCurrentState, DWORD dwWin32ExitCode,
  42                             DWORD dwServiceSpecificExitCode)
  43 {
  44     SERVICE_STATUS status;
  45
  46     status.dwServiceType = SERVICE_WIN32_OWN_PROCESS;
  47     status.dwCurrentState = dwCurrentState;
  48
  49     if (dwCurrentState == SERVICE_START_PENDING)
  50         status.dwControlsAccepted = 0;
  51     else
  52     {
  53         status.dwControlsAccepted = SERVICE_ACCEPT_STOP |
  54                                     SERVICE_ACCEPT_PAUSE_CONTINUE |
  55                                     SERVICE_ACCEPT_SHUTDOWN;
  56     }
  57
  58     if (dwServiceSpecificExitCode == 0)
  59     {
  60         status.dwWin32ExitCode = dwWin32ExitCode;
  61     }
  62     else
  63     {
  64         status.dwWin32ExitCode = ERROR_SERVICE_SPECIFIC_ERROR;
  65     }
  66
  67     status.dwServiceSpecificExitCode = dwServiceSpecificExitCode;
  68     status.dwCheckPoint = 0;
  69     status.dwWaitHint = 0;
  70
  71     if (!SetServiceStatus(hstatus, &status))
  72     {
  73         fprintf(stderr, "Failed to set service status\n");
  74         KillService();
  75         return FALSE;
  76     }
  77
  78     return TRUE;
  79 }
  80
  81 static void WINAPI ServiceCtrlHandler(DWORD code)
  82 {
  83     WINE_TRACE("%d\n", code);
  84
  85     switch (code)
  86     {
  87         case SERVICE_CONTROL_SHUTDOWN:
  88         case SERVICE_CONTROL_STOP:
  89             UpdateSCMStatus(SERVICE_STOP_PENDING, NO_ERROR, 0);
  90             KillService();
  91             return;
  92         default:
  93             fprintf(stderr, "Unhandled service control code: %d\n", code);
  94             break;
  95     }
  96
  97     UpdateSCMStatus(SERVICE_RUNNING, NO_ERROR, 0);
  98 }
  99
 100 static DWORD WINAPI ServiceExecutionThread(LPVOID param)
 101 {
 102     while (TRUE)
 103     {
 104         /* do nothing */
 105     }
 106
 107     return 0;
 108 }
 109
 110 static BOOL StartServiceThread(void)
 111 {
 112     DWORD id;
 113
 114     thread = CreateThread(0, 0, ServiceExecutionThread, 0, 0, &id);
 115     if (!thread)
 116     {
 117         fprintf(stderr, "Failed to create thread\n");
 118         return FALSE;
 119     }
 120
 121     return TRUE;
 122 }
 123
 124 static void WINAPI ServiceMain(DWORD argc, LPSTR *argv)
 125 {
 126     hstatus = RegisterServiceCtrlHandlerA("MSIServer", ServiceCtrlHandler);
 127     if (!hstatus)
 128     {
 129         fprintf(stderr, "Failed to register service ctrl handler\n");
 130         return;
 131     }
 132
 133     UpdateSCMStatus(SERVICE_START_PENDING, NO_ERROR, 0);
 134
 135     kill_event = CreateEvent(0, TRUE, FALSE, 0);
 136     if (!kill_event)
 137     {
 138         fprintf(stderr, "Failed to create event\n");
 139         KillService();
 140         return;
 141     }
 142
 143     if (!StartServiceThread())
 144     {
 145         KillService();
 146         return;
 147     }
 148
 149     UpdateSCMStatus(SERVICE_RUNNING, NO_ERROR, 0);
 150
 151     WaitForSingleObject(kill_event, INFINITE);
 152     KillService();
 153 }
 154
 155 DWORD DoService(void)
 156 {
 157     char service_name[] = "MSIServer";
 158
 159     const SERVICE_TABLE_ENTRY service[] =
 160     {
 161         {service_name, ServiceMain},
 162         {NULL, NULL},
 163     };
 164
 165     WINE_TRACE("Starting MSIServer service\n");
 166
 167     if (!StartServiceCtrlDispatcher(service))
 168     {
 169         fprintf(stderr, "Failed to start MSIServer service\n");
 170         return 1;
 171     }
 172
 173     return 0;
 174 }