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         status.dwControlsAccepted = 0;
  52     else
  53     {
  54         status.dwControlsAccepted = SERVICE_ACCEPT_STOP |
  55                                     SERVICE_ACCEPT_PAUSE_CONTINUE |
  56                                     SERVICE_ACCEPT_SHUTDOWN;
  57     }
  58
  59     if (dwServiceSpecificExitCode == 0)
  60     {
  61         status.dwWin32ExitCode = dwWin32ExitCode;
  62     }
  63     else
  64     {
  65         status.dwWin32ExitCode = ERROR_SERVICE_SPECIFIC_ERROR;
  66     }
  67
  68     status.dwServiceSpecificExitCode = dwServiceSpecificExitCode;
  69     status.dwCheckPoint = 0;
  70     status.dwWaitHint = 0;
  71
  72     if (!SetServiceStatus(hstatus, &status))
  73     {
  74         fprintf(stderr, "Failed to set service status\n");
  75         KillService();
  76         return FALSE;
  77     }
  78
  79     return TRUE;
  80 }
  81
  82 static void WINAPI ServiceCtrlHandler(DWORD code)
  83 {
  84     DWORD state = SERVICE_RUNNING;
  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             state = SERVICE_STOPPED;
  95             break;
  96         default:
  97             fprintf(stderr, "Unhandled service control code: %d\n", code);
  98             break;
  99     }
 100
 101     UpdateSCMStatus(state, NO_ERROR, 0);
 102 }
 103
 104 static DWORD WINAPI ServiceExecutionThread(LPVOID param)
 105 {
 106     WaitForSingleObject(kill_event, INFINITE);
 107
 108     return 0;
 109 }
 110
 111 static BOOL StartServiceThread(void)
 112 {
 113     DWORD id;
 114
 115     thread = CreateThread(0, 0, ServiceExecutionThread, 0, 0, &id);
 116     if (!thread)
 117     {
 118         fprintf(stderr, "Failed to create thread\n");
 119         return FALSE;
 120     }
 121
 122     return TRUE;
 123 }
 124
 125 static void WINAPI ServiceMain(DWORD argc, LPSTR *argv)
 126 {
 127     hstatus = RegisterServiceCtrlHandlerA("MSIServer", ServiceCtrlHandler);
 128     if (!hstatus)
 129     {
 130         fprintf(stderr, "Failed to register service ctrl handler\n");
 131         return;
 132     }
 133
 134     UpdateSCMStatus(SERVICE_START_PENDING, NO_ERROR, 0);
 135
 136     kill_event = CreateEventW(0, TRUE, FALSE, 0);
 137     if (!kill_event)
 138     {
 139         fprintf(stderr, "Failed to create event\n");
 140         KillService();
 141         UpdateSCMStatus(SERVICE_STOPPED, NO_ERROR, 0);
 142         return;
 143     }
 144
 145     if (!StartServiceThread())
 146     {
 147         KillService();
 148         UpdateSCMStatus(SERVICE_STOPPED, NO_ERROR, 0);
 149         return;
 150     }
 151
 152     UpdateSCMStatus(SERVICE_RUNNING, NO_ERROR, 0);
 153
 154     WaitForSingleObject(kill_event, INFINITE);
 155     KillService();
 156
 157     UpdateSCMStatus(SERVICE_STOPPED, NO_ERROR, 0);
 158 }
 159
 160 DWORD DoService(void)
 161 {
 162     char service_name[] = "MSIServer";
 163
 164     const SERVICE_TABLE_ENTRYA service[] =
 165     {
 166         {service_name, ServiceMain},
 167         {NULL, NULL},
 168     };
 169
 170     WINE_TRACE("Starting MSIServer service\n");
 171
 172     if (!StartServiceCtrlDispatcherA(service))
 173     {
 174         fprintf(stderr, "Failed to start MSIServer service\n");
 175         return 1;
 176     }
 177
 178     return 0;
 179 }