git.pond.sub.org Git - empserver/blob - src/lib/w32/service.c

   1 /*
   2  *  Empire - A multi-player, client/server Internet based war game.
   3  *  Copyright (C) 1986-2008, Dave Pare, Jeff Bailey, Thomas Ruschak,
   4  *                           Ken Stevens, Steve McClure
   5  *
   6  *  This program is free software; you can redistribute it and/or modify
   7  *  it under the terms of the GNU General Public License as published by
   8  *  the Free Software Foundation; either version 2 of the License, or
   9  *  (at your option) any later version.
  10  *
  11  *  This program 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
  14  *  GNU General Public License for more details.
  15  *
  16  *  You should have received a copy of the GNU General Public License
  17  *  along with this program; if not, write to the Free Software
  18  *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  19  *
  20  *  ---
  21  *
  22  *  See files README, COPYING and CREDITS in the root of the source
  23  *  tree for related information and legal notices.  It is expected
  24  *  that future projects/authors will amend these files as needed.
  25  *
  26  *  ---
  27  *
  28  *  service.c: Windows services support
  29  *
  30  *  Known contributors to this file:
  31  *     Ron Koenderink, 2004
  32  */
  33
  34 #include <config.h>
  35
  36 #include <windows.h>
  37
  38 #include "service.h"
  39 #include "empthread.h"
  40 #include "prototypes.h"
  41
  42 int
  43 install_service(char *program_name, char *service_name, char *config_file)
  44 {
  45     HANDLE schSCManager,schService;
  46     SERVICE_DESCRIPTION sdBuf;
  47
  48     if (config_file != NULL)
  49         snprintf(&program_name[strlen(program_name)], _MAX_PATH-strlen(program_name), " -e %s",
  50             config_file);
  51
  52     if (service_name == NULL)
  53         service_name = DEFAULT_SERVICE_NAME;
  54     else if (service_name[0] == '\0')
  55         service_name = DEFAULT_SERVICE_NAME;
  56
  57     schSCManager = OpenSCManager(NULL,NULL,SC_MANAGER_ALL_ACCESS);
  58
  59     if (schSCManager == NULL) {
  60         fprintf(stderr, "install_service failed to open Service Control Manager\n");
  61         return EXIT_FAILURE;
  62     }
  63
  64     schService = CreateService(schSCManager,
  65         service_name,
  66         service_name,                   /* service name to display */
  67         SERVICE_ALL_ACCESS,             /* desired access */
  68         SERVICE_WIN32_OWN_PROCESS,      /* service type */
  69         SERVICE_AUTO_START,             /* start type */
  70         SERVICE_ERROR_NORMAL,           /* error control type */
  71         program_name,                   /* service's binary */
  72         NULL,                           /* no load ordering group */
  73         NULL,                           /* no tag identifier */
  74         NULL,                           /* database service dependency */
  75         NULL,                           /* LocalSystem account */
  76         NULL);                          /* no password */
  77
  78     if (schService == NULL) {
  79         fprintf(stderr, "install_service failed to create service %s\n", service_name);
  80         return EXIT_FAILURE;
  81     }
  82     sdBuf.lpDescription = "Server for Empire game";
  83
  84     if(!ChangeServiceConfig2(
  85           schService,                 /* handle to service */
  86           SERVICE_CONFIG_DESCRIPTION, /* change: description */
  87           &sdBuf)) {                  /* value: new description */
  88         fprintf(stderr, "install_service failed to set the description\n");
  89     }
  90
  91     printf("Service %s installed.\n", service_name);
  92     CloseServiceHandle(schService);
  93     return EXIT_SUCCESS;
  94 }
  95
  96 int
  97 remove_service(char *service_name)
  98 {
  99     HANDLE schSCManager;
 100     SC_HANDLE hService;
 101
 102     if (service_name == NULL)
 103         service_name = DEFAULT_SERVICE_NAME;
 104     else if (service_name[0] == '\0')
 105         service_name = DEFAULT_SERVICE_NAME;
 106
 107     schSCManager = OpenSCManager(NULL, NULL, SC_MANAGER_ALL_ACCESS);
 108
 109     if (schSCManager == NULL) {
 110         fprintf(stderr, "remove_service failed to open Service Control Manager\n");
 111         return EXIT_FAILURE;
 112     }
 113
 114     hService = OpenService(schSCManager, service_name, SERVICE_ALL_ACCESS);
 115
 116     if (hService == NULL) {
 117         fprintf(stderr, "remove_service failed to open service %s\n", service_name);
 118         return EXIT_FAILURE;
 119     }
 120
 121     if (DeleteService(hService) == 0) {
 122         fprintf(stderr, "remove_service failed to remove service %s\n", service_name);
 123         return EXIT_FAILURE;
 124     }
 125
 126     if (CloseServiceHandle(hService) == 0) {
 127         fprintf(stderr, "remove_service failed to close service %s\n", service_name);
 128         return EXIT_FAILURE;
 129     } else {
 130         printf("Service %s removed.\n", service_name);
 131         return EXIT_SUCCESS;
 132     }
 133 }
 134
 135 static SERVICE_STATUS           service_status;
 136 static SERVICE_STATUS_HANDLE    service_status_handle;
 137
 138 static void WINAPI
 139 service_ctrl_handler(DWORD Opcode)
 140 {
 141     switch(Opcode) {
 142         case SERVICE_CONTROL_PAUSE:
 143             service_status.dwCurrentState = SERVICE_PAUSED;
 144             logerror("Pausing the service not supported");
 145             break;
 146
 147         case SERVICE_CONTROL_CONTINUE:
 148             logerror("Continuing the service not supported");
 149             service_status.dwCurrentState = SERVICE_RUNNING;
 150             break;
 151
 152         case SERVICE_CONTROL_STOP:
 153             logerror("Service stopping");
 154             empth_request_shutdown();
 155             return;
 156
 157         case SERVICE_CONTROL_INTERROGATE:
 158         /* Fall through to send current status.  */
 159             break;
 160
 161         default:
 162             logerror("Unrecognized opcode %ld in ServiceCtrlHandler",
 163                 Opcode);
 164     }
 165
 166     /* Send current status. */
 167     if (!SetServiceStatus (service_status_handle,  &service_status))
 168         logerror("SetServiceStatus error %ld",GetLastError());
 169     return;
 170 }
 171
 172 void WINAPI
 173 service_main(DWORD argc, LPTSTR *argv)
 174 {
 175     int sig;
 176
 177     service_status.dwServiceType        = SERVICE_WIN32;
 178     service_status.dwCurrentState       = SERVICE_START_PENDING;
 179     service_status.dwControlsAccepted   = SERVICE_ACCEPT_STOP;
 180     service_status.dwWin32ExitCode      = 0;
 181     service_status.dwServiceSpecificExitCode = 0;
 182     service_status.dwCheckPoint         = 0;
 183     service_status.dwWaitHint           = 0;
 184
 185     service_status_handle = RegisterServiceCtrlHandler(
 186         DEFAULT_SERVICE_NAME, service_ctrl_handler);
 187
 188     if (service_status_handle == (SERVICE_STATUS_HANDLE)0) {
 189         logerror("RegisterServiceCtrlHandler failed %lu\n", GetLastError());
 190         finish_server();
 191         return;
 192     }
 193
 194     start_server(0);
 195
 196     /* Initialization complete - report running status. */
 197     service_status.dwCurrentState       = SERVICE_RUNNING;
 198     service_status.dwCheckPoint         = 0;
 199     service_status.dwWaitHint           = 0;
 200
 201     if (!SetServiceStatus (service_status_handle, &service_status)) {
 202         logerror("SetServiceStatus error %ld\n", GetLastError());
 203     }
 204
 205     sig = empth_wait_for_signal();
 206
 207     shutdwn(sig);
 208
 209     CANT_REACH();
 210     finish_server();
 211 }
 212
 213 void
 214 stop_service(void)
 215 {
 216     logerror("Service stopped");
 217     service_status.dwWin32ExitCode = 0;
 218     service_status.dwCurrentState  = SERVICE_STOPPED;
 219     service_status.dwCheckPoint    = 0;
 220     service_status.dwWaitHint      = 0;
 221
 222     if (!SetServiceStatus (service_status_handle, &service_status))
 223         logerror("Error while stopping service SetServiceStatus"
 224             " error %ld", GetLastError());
 225 }