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 <stdio.h>
  24 #include <windows.h>
  25 #include <winsvc.h>
  26
  27 #include "wine/debug.h"
  28
  29 WINE_DEFAULT_DEBUG_CHANNEL(msiexec);
  30
  31 static SERVICE_STATUS_HANDLE hstatus;
  32
  33 static HANDLE thread;
  34 static HANDLE kill_event;
  35
  36 static void KillService(void)
  37 {
  38     WINE_TRACE("Killing service\n");
  39     SetEvent(kill_event);
  40 }
  41
  42 static BOOL UpdateSCMStatus(DWORD dwCurrentState, DWORD dwWin32ExitCode,
  43                             DWORD dwServiceSpecificExitCode)
  44 {
  45     SERVICE_STATUS status;
  46
  47     status.dwServiceType = SERVICE_WIN32_OWN_PROCESS;
  48     status.dwCurrentState = dwCurrentState;
  49
  50     if (dwCurrentState == SERVICE_START_PENDING
  51             || dwCurrentState == SERVICE_STOP_PENDING
  52             || dwCurrentState == SERVICE_STOPPED)
  53         status.dwControlsAccepted = 0;
  54     else
  55     {
  56         status.dwControlsAccepted = SERVICE_ACCEPT_STOP |
  57                                     SERVICE_ACCEPT_PAUSE_CONTINUE |
  58                                     SERVICE_ACCEPT_SHUTDOWN;
  59     }
  60
  61     if (dwServiceSpecificExitCode == 0)
  62     {
  63         status.dwWin32ExitCode = dwWin32ExitCode;
  64     }
  65     else
  66     {
  67         status.dwWin32ExitCode = ERROR_SERVICE_SPECIFIC_ERROR;
  68     }
  69
  70     status.dwServiceSpecificExitCode = dwServiceSpecificExitCode;
  71     status.dwCheckPoint = 0;
  72     status.dwWaitHint = 0;
  73
  74     if (!SetServiceStatus(hstatus, &status))
  75     {
  76         fprintf(stderr, "Failed to set service status\n");
  77         KillService();
  78         return FALSE;
  79     }
  80
  81     return TRUE;
  82 }
  83
  84 static void WINAPI ServiceCtrlHandler(DWORD code)
  85 {
  86     WINE_TRACE("%d\n", code);
  87
  88     switch (code)
  89     {
  90         case SERVICE_CONTROL_SHUTDOWN:
  91         case SERVICE_CONTROL_STOP:
  92             UpdateSCMStatus(SERVICE_STOP_PENDING, NO_ERROR, 0);
  93             KillService();
  94             break;
  95         default:
  96             fprintf(stderr, "Unhandled service control code: %d\n", code);
  97             UpdateSCMStatus(SERVICE_RUNNING, NO_ERROR, 0);
  98             break;
  99     }
 100 }
 101
 102 static DWORD WINAPI ServiceExecutionThread(LPVOID param)
 103 {
 104     WaitForSingleObject(kill_event, INFINITE);
 105
 106     return 0;
 107 }
 108
 109 static BOOL StartServiceThread(void)
 110 {
 111     DWORD id;
 112
 113     thread = CreateThread(0, 0, ServiceExecutionThread, 0, 0, &id);
 114     if (!thread)
 115     {
 116         fprintf(stderr, "Failed to create thread\n");
 117         return FALSE;
 118     }
 119
 120     return TRUE;
 121 }
 122
 123 static void WINAPI ServiceMain(DWORD argc, LPSTR *argv)
 124 {
 125     hstatus = RegisterServiceCtrlHandlerA("MSIServer", ServiceCtrlHandler);
 126     if (!hstatus)
 127     {
 128         fprintf(stderr, "Failed to register service ctrl handler\n");
 129         return;
 130     }
 131
 132     UpdateSCMStatus(SERVICE_START_PENDING, NO_ERROR, 0);
 133
 134     kill_event = CreateEventW(0, TRUE, FALSE, 0);
 135     if (!kill_event)
 136     {
 137         fprintf(stderr, "Failed to create event\n");
 138         KillService();
 139         UpdateSCMStatus(SERVICE_STOPPED, NO_ERROR, 0);
 140         return;
 141     }
 142
 143     if (!StartServiceThread())
 144     {
 145         KillService();
 146         UpdateSCMStatus(SERVICE_STOPPED, NO_ERROR, 0);
 147         return;
 148     }
 149
 150     UpdateSCMStatus(SERVICE_RUNNING, NO_ERROR, 0);
 151     WaitForSingleObject(thread, INFINITE);
 152     UpdateSCMStatus(SERVICE_STOPPED, NO_ERROR, 0);
 153 }
 154
 155 DWORD DoService(void)
 156 {
 157     char service_name[] = "MSIServer";
 158
 159     const SERVICE_TABLE_ENTRYA service[] =
 160     {
 161         {service_name, ServiceMain},
 162         {NULL, NULL},
 163     };
 164
 165     WINE_TRACE("Starting MSIServer service\n");
 166
 167     if (!StartServiceCtrlDispatcherA(service))
 168     {
 169         fprintf(stderr, "Failed to start MSIServer service\n");
 170         return 1;
 171     }
 172
 173     return 0;
 174 }