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) 1986-2010, 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, 2004-2009
  32  */
  33
  34 #include <config.h>
  35
  36 #include "service.h"
  37 #include "empthread.h"
  38 #include "prototypes.h"
  39
  40 int
  41 install_service(char *program_name, char *service_name, char *config_file)
  42 {
  43     HANDLE schSCManager,schService;
  44     SERVICE_DESCRIPTION sdBuf;
  45
  46     if (config_file != NULL)
  47         snprintf(&program_name[strlen(program_name)],
  48                  _MAX_PATH - strlen(program_name),
  49                  " -e %s", config_file);
  50
  51     if (service_name == NULL)
  52         service_name = DEFAULT_SERVICE_NAME;
  53     else if (service_name[0] == '\0')
  54         service_name = DEFAULT_SERVICE_NAME;
  55
  56     schSCManager = OpenSCManager(NULL,NULL,SC_MANAGER_ALL_ACCESS);
  57
  58     if (schSCManager == NULL) {
  59         fprintf(stderr, "install_service failed to open Service Control Manager\n");
  60         return EXIT_FAILURE;
  61     }
  62
  63     schService = CreateService(schSCManager,
  64         service_name,
  65         service_name,                   /* service name to display */
  66         SERVICE_ALL_ACCESS,             /* desired access */
  67         SERVICE_WIN32_OWN_PROCESS,      /* service type */
  68         SERVICE_AUTO_START,             /* start type */
  69         SERVICE_ERROR_NORMAL,           /* error control type */
  70         program_name,                   /* service's binary */
  71         NULL,                           /* no load ordering group */
  72         NULL,                           /* no tag identifier */
  73         NULL,                           /* database service dependency */
  74         NULL,                           /* LocalSystem account */
  75         NULL);                          /* no password */
  76
  77     if (schService == NULL) {
  78         fprintf(stderr, "install_service failed to create service %s\n", service_name);
  79         return EXIT_FAILURE;
  80     }
  81     sdBuf.lpDescription = "Server for Empire game";
  82
  83     if(!ChangeServiceConfig2(
  84           schService,                 /* handle to service */
  85           SERVICE_CONFIG_DESCRIPTION, /* change: description */
  86           &sdBuf)) {                  /* value: new description */
  87         fprintf(stderr, "install_service failed to set the description\n");
  88     }
  89
  90     printf("Service %s installed.\n", service_name);
  91     CloseServiceHandle(schService);
  92     return EXIT_SUCCESS;
  93 }
  94
  95 int
  96 remove_service(char *service_name)
  97 {
  98     HANDLE schSCManager;
  99     SC_HANDLE hService;
 100
 101     if (service_name == NULL)
 102         service_name = DEFAULT_SERVICE_NAME;
 103     else if (service_name[0] == '\0')
 104         service_name = DEFAULT_SERVICE_NAME;
 105
 106     schSCManager = OpenSCManager(NULL, NULL, SC_MANAGER_ALL_ACCESS);
 107
 108     if (schSCManager == NULL) {
 109         fprintf(stderr, "remove_service failed to open Service Control Manager\n");
 110         return EXIT_FAILURE;
 111     }
 112
 113     hService = OpenService(schSCManager, service_name, SERVICE_ALL_ACCESS);
 114
 115     if (hService == NULL) {
 116         fprintf(stderr, "remove_service failed to open service %s\n", service_name);
 117         return EXIT_FAILURE;
 118     }
 119
 120     if (DeleteService(hService) == 0) {
 121         fprintf(stderr, "remove_service failed to remove service %s\n", service_name);
 122         return EXIT_FAILURE;
 123     }
 124
 125     if (CloseServiceHandle(hService) == 0) {
 126         fprintf(stderr, "remove_service failed to close service %s\n", service_name);
 127         return EXIT_FAILURE;
 128     } else {
 129         printf("Service %s removed.\n", service_name);
 130         return EXIT_SUCCESS;
 131     }
 132 }
 133
 134 static SERVICE_STATUS           service_status;
 135 static SERVICE_STATUS_HANDLE    service_status_handle;
 136
 137 static void WINAPI
 138 service_ctrl_handler(DWORD Opcode)
 139 {
 140     switch(Opcode) {
 141         case SERVICE_CONTROL_PAUSE:
 142             service_status.dwCurrentState = SERVICE_PAUSED;
 143             logerror("Pausing the service not supported");
 144             break;
 145
 146         case SERVICE_CONTROL_CONTINUE:
 147             logerror("Continuing the service not supported");
 148             service_status.dwCurrentState = SERVICE_RUNNING;
 149             break;
 150
 151         case SERVICE_CONTROL_STOP:
 152             logerror("Service stopping");
 153             empth_request_shutdown();
 154             return;
 155
 156         case SERVICE_CONTROL_INTERROGATE:
 157         /* Fall through to send current status.  */
 158             break;
 159
 160         default:
 161             logerror("Unrecognized opcode %ld in ServiceCtrlHandler",
 162                 Opcode);
 163     }
 164
 165     /* Send current status. */
 166     if (!SetServiceStatus (service_status_handle,  &service_status))
 167         logerror("SetServiceStatus error %ld",GetLastError());
 168     return;
 169 }
 170
 171 void WINAPI
 172 service_main(DWORD argc, LPTSTR *argv)
 173 {
 174     int sig;
 175
 176     service_status.dwServiceType        = SERVICE_WIN32;
 177     service_status.dwCurrentState       = SERVICE_START_PENDING;
 178     service_status.dwControlsAccepted   = SERVICE_ACCEPT_STOP;
 179     service_status.dwWin32ExitCode      = 0;
 180     service_status.dwServiceSpecificExitCode = 0;
 181     service_status.dwCheckPoint         = 0;
 182     service_status.dwWaitHint           = 0;
 183
 184     service_status_handle = RegisterServiceCtrlHandler(
 185         DEFAULT_SERVICE_NAME, service_ctrl_handler);
 186
 187     if (service_status_handle == (SERVICE_STATUS_HANDLE)0) {
 188         logerror("RegisterServiceCtrlHandler failed %lu\n", GetLastError());
 189         finish_server();
 190         return;
 191     }
 192
 193     start_server(0);
 194
 195     /* Initialization complete - report running status. */
 196     service_status.dwCurrentState       = SERVICE_RUNNING;
 197     service_status.dwCheckPoint         = 0;
 198     service_status.dwWaitHint           = 0;
 199
 200     if (!SetServiceStatus (service_status_handle, &service_status)) {
 201         logerror("SetServiceStatus error %ld\n", GetLastError());
 202     }
 203
 204     sig = empth_wait_for_signal();
 205
 206     shutdwn(sig);
 207
 208     CANT_REACH();
 209     finish_server();
 210 }
 211
 212 void
 213 stop_service(void)
 214 {
 215     logerror("Service stopped");
 216     service_status.dwWin32ExitCode = 0;
 217     service_status.dwCurrentState  = SERVICE_STOPPED;
 218     service_status.dwCheckPoint    = 0;
 219     service_status.dwWaitHint      = 0;
 220
 221     if (!SetServiceStatus (service_status_handle, &service_status))
 222         logerror("Error while stopping service SetServiceStatus"
 223             " error %ld", GetLastError());
 224 }