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

   1 /*
   2  *  Empire - A multi-player, client/server Internet based war game.
   3  *  Copyright (C) 1986-2006, 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 #ifdef _WIN32
  37 #include <windows.h>
  38
  39 #include "service.h"
  40 #include "empthread.h"
  41 #include "prototypes.h"
  42
  43 int
  44 install_service(char *program_name, char *service_name, char *config_file)
  45 {
  46     HANDLE schSCManager,schService;
  47     SERVICE_DESCRIPTION sdBuf;
  48
  49     if (config_file != NULL)
  50         snprintf(&program_name[strlen(program_name)], _MAX_PATH-strlen(program_name), " -e %s",
  51             config_file);
  52
  53     if (service_name == NULL)
  54         service_name = DEFAULT_SERVICE_NAME;
  55     else if (service_name[0] == '\0')
  56         service_name = DEFAULT_SERVICE_NAME;
  57
  58     schSCManager = OpenSCManager(NULL,NULL,SC_MANAGER_ALL_ACCESS);
  59
  60     if (schSCManager == NULL) {
  61         fprintf(stderr, "install_service failed to open Service Control Manager\n");
  62         return EXIT_FAILURE;
  63     }
  64
  65     schService = CreateService(schSCManager,
  66         service_name,
  67         service_name,                   /* service name to display */
  68         SERVICE_ALL_ACCESS,             /* desired access */
  69         SERVICE_WIN32_OWN_PROCESS,      /* service type */
  70         SERVICE_AUTO_START,             /* start type */
  71         SERVICE_ERROR_NORMAL,           /* error control type */
  72         program_name,                   /* service's binary */
  73         NULL,                           /* no load ordering group */
  74         NULL,                           /* no tag identifier */
  75         NULL,                           /* database service dependency */
  76         NULL,                           /* LocalSystem account */
  77         NULL);                          /* no password */
  78
  79     if (schService == NULL) {
  80         fprintf(stderr, "install_service failed to create service %s\n", service_name);
  81         return EXIT_FAILURE;
  82     }
  83     sdBuf.lpDescription = "Server for Empire game";
  84
  85     if(!ChangeServiceConfig2(
  86           schService,                 /* handle to service */
  87           SERVICE_CONFIG_DESCRIPTION, /* change: description */
  88           &sdBuf)) {                  /* value: new description */
  89         fprintf(stderr, "install_service failed to set the description\n");
  90     }
  91
  92     printf("Service %s installed.\n", service_name);
  93     CloseServiceHandle(schService);
  94     return EXIT_SUCCESS;
  95 }
  96
  97 int
  98 remove_service(char *service_name)
  99 {
 100     HANDLE schSCManager;
 101     SC_HANDLE hService;
 102
 103     if (service_name == NULL)
 104         service_name = DEFAULT_SERVICE_NAME;
 105     else if (service_name[0] == '\0')
 106         service_name = DEFAULT_SERVICE_NAME;
 107
 108     schSCManager = OpenSCManager(NULL, NULL, SC_MANAGER_ALL_ACCESS);
 109
 110     if (schSCManager == NULL) {
 111         fprintf(stderr, "remove_service failed to open Service Control Manager\n");
 112         return EXIT_FAILURE;
 113     }
 114
 115     hService = OpenService(schSCManager, service_name, SERVICE_ALL_ACCESS);
 116
 117     if (hService == NULL) {
 118         fprintf(stderr, "remove_service failed to open service %s\n", service_name);
 119         return EXIT_FAILURE;
 120     }
 121
 122     if (DeleteService(hService) == 0) {
 123         fprintf(stderr, "remove_service failed to remove service %s\n", service_name);
 124         return EXIT_FAILURE;
 125     }
 126
 127     if (CloseServiceHandle(hService) == 0) {
 128         fprintf(stderr, "remove_service failed to close service %s\n", service_name);
 129         return EXIT_FAILURE;
 130     } else {
 131         printf("Service %s removed.\n", service_name);
 132         return EXIT_SUCCESS;
 133     }
 134 }
 135
 136 static SERVICE_STATUS           service_status;
 137 static SERVICE_STATUS_HANDLE    service_status_handle;
 138
 139 static void WINAPI
 140 service_ctrl_handler(DWORD Opcode)
 141 {
 142     switch(Opcode) {
 143         case SERVICE_CONTROL_PAUSE:
 144             service_status.dwCurrentState = SERVICE_PAUSED;
 145             logerror("Pausing the service not supported");
 146             break;
 147
 148         case SERVICE_CONTROL_CONTINUE:
 149             logerror("Continuing the service not supported");
 150             service_status.dwCurrentState = SERVICE_RUNNING;
 151             break;
 152
 153         case SERVICE_CONTROL_STOP:
 154             logerror("Service stopping");
 155             empth_request_shutdown();
 156             return;
 157
 158         case SERVICE_CONTROL_INTERROGATE:
 159         /* Fall through to send current status.  */
 160             break;
 161
 162         default:
 163             logerror("Unrecognized opcode %ld in ServiceCtrlHandler",
 164                 Opcode);
 165     }
 166
 167     /* Send current status. */
 168     if (!SetServiceStatus (service_status_handle,  &service_status))
 169         logerror("SetServiceStatus error %ld",GetLastError());
 170     return;
 171 }
 172
 173 void WINAPI
 174 service_main(DWORD argc, LPTSTR *argv)
 175 {
 176     int sig;
 177
 178     service_status.dwServiceType        = SERVICE_WIN32;
 179     service_status.dwCurrentState       = SERVICE_START_PENDING;
 180     service_status.dwControlsAccepted   = SERVICE_ACCEPT_STOP;
 181     service_status.dwWin32ExitCode      = 0;
 182     service_status.dwServiceSpecificExitCode = 0;
 183     service_status.dwCheckPoint         = 0;
 184     service_status.dwWaitHint           = 0;
 185
 186     service_status_handle = RegisterServiceCtrlHandler(
 187         DEFAULT_SERVICE_NAME, service_ctrl_handler);
 188
 189     if (service_status_handle == (SERVICE_STATUS_HANDLE)0) {
 190         logerror("RegisterServiceCtrlHandler failed %lu\n", GetLastError());
 191         finish_server();
 192         return;
 193     }
 194
 195     start_server(0);
 196
 197     /* Initialization complete - report running status. */
 198     service_status.dwCurrentState       = SERVICE_RUNNING;
 199     service_status.dwCheckPoint         = 0;
 200     service_status.dwWaitHint           = 0;
 201
 202     if (!SetServiceStatus (service_status_handle, &service_status)) {
 203         logerror("SetServiceStatus error %ld\n", GetLastError());
 204     }
 205
 206     sig = empth_wait_for_signal();
 207
 208     shutdwn(sig);
 209
 210     CANT_REACH();
 211     finish_server();
 212 }
 213
 214 void
 215 stop_service(void)
 216 {
 217     logerror("Service stopped");
 218     service_status.dwWin32ExitCode = 0;
 219     service_status.dwCurrentState  = SERVICE_STOPPED;
 220     service_status.dwCheckPoint    = 0;
 221     service_status.dwWaitHint      = 0;
 222
 223     if (!SetServiceStatus (service_status_handle, &service_status))
 224         logerror("Error while stopping service SetServiceStatus"
 225             " error %ld", GetLastError());
 226 }
 227
 228 #endif /* _WIN32 */