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) 1986-2005, 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 the "LEGAL", "LICENSE", "CREDITS" and "README" files for all the
  23  *  related information and legal notices. It is expected that any future
  24  *  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 #ifdef _WIN32
  35 #include <windows.h>
  36
  37 #include "prototypes.h"
  38 #include "service.h"
  39 #include "optlist.h"
  40
  41 int
  42 install_service(char *program_name, char *service_name, char *config_file)
  43 {
  44     char strDir[1024];
  45     HANDLE schSCManager,schService;
  46     LPCTSTR lpszBinaryPathName;
  47     SERVICE_DESCRIPTION sdBuf;
  48
  49     if (strrchr(program_name,'\\') == NULL) {
  50         GetCurrentDirectory(sizeof(strDir), strDir);
  51         strcat(strDir, "\\");
  52         strcat(strDir, program_name);
  53     } else
  54         strcpy(strDir, program_name);
  55
  56     if (config_file != NULL) {
  57         strcat(strDir, " -e ");
  58         strcat(strDir, config_file);
  59     }
  60
  61     if (service_name == NULL)
  62         service_name = DEFAULT_SERVICE_NAME;
  63     else if (service_name[0] == '\0')
  64         service_name = DEFAULT_SERVICE_NAME;
  65
  66     schSCManager = OpenSCManager(NULL,NULL,SC_MANAGER_ALL_ACCESS);
  67
  68     if (schSCManager == NULL) {
  69         fprintf(stderr, "install_service failed to open Service Control Manager\n");
  70         return EXIT_FAILURE;
  71     }
  72
  73     lpszBinaryPathName = strDir;
  74
  75     schService = CreateService(schSCManager,
  76         service_name,
  77         service_name,                   /* service name to display */
  78         SERVICE_ALL_ACCESS,             /* desired access */
  79         SERVICE_WIN32_OWN_PROCESS,      /* service type */
  80         SERVICE_AUTO_START,             /* start type */
  81         SERVICE_ERROR_NORMAL,           /* error control type */
  82         lpszBinaryPathName,             /* service's binary */
  83         NULL,                           /* no load ordering group */
  84         NULL,                           /* no tag identifier */
  85         NULL,                           /* database service dependency */
  86         NULL,                           /* LocalSystem account */
  87         NULL);                          /* no password */
  88
  89     if (schService == NULL) {
  90         fprintf(stderr, "install_service failed to create service %s\n", service_name);
  91         return EXIT_FAILURE;
  92     }
  93     sdBuf.lpDescription = "Server for Empire game";
  94
  95     if(!ChangeServiceConfig2(
  96           schService,                 /* handle to service */
  97           SERVICE_CONFIG_DESCRIPTION, /* change: description */
  98           &sdBuf)) {                  /* value: new description */
  99         fprintf(stderr, "install_service failed to set the description\n");
 100     }
 101
 102     printf("Service %s installed.\n", service_name);
 103     CloseServiceHandle(schService);
 104     return EXIT_SUCCESS;
 105 }
 106
 107 int
 108 remove_service(char *service_name)
 109 {
 110     HANDLE schSCManager;
 111     SC_HANDLE hService;
 112
 113     if (service_name == NULL)
 114         service_name = DEFAULT_SERVICE_NAME;
 115     else if (service_name[0] == '\0')
 116         service_name = DEFAULT_SERVICE_NAME;
 117
 118     schSCManager = OpenSCManager(NULL, NULL, SC_MANAGER_ALL_ACCESS);
 119
 120     if (schSCManager == NULL) {
 121         fprintf(stderr, "remove_service failed to open Service Control Manager\n");
 122         return EXIT_FAILURE;
 123     }
 124
 125     hService = OpenService(schSCManager, service_name, SERVICE_ALL_ACCESS);
 126
 127     if (hService == NULL) {
 128         fprintf(stderr, "remove_service failed to open service %s\n", service_name);
 129         return EXIT_FAILURE;
 130     }
 131
 132     if (DeleteService(hService) == 0) {
 133         fprintf(stderr, "remove_service failed to remove service %s\n", service_name);
 134         return EXIT_FAILURE;
 135     }
 136
 137     if (CloseServiceHandle(hService) == 0) {
 138         fprintf(stderr, "remove_service failed to close service %s\n", service_name);
 139         return EXIT_FAILURE;
 140     } else {
 141         printf("Service %s removed.\n", service_name);
 142         return EXIT_SUCCESS;
 143     }
 144 }
 145
 146 static SERVICE_STATUS           service_status;
 147 static SERVICE_STATUS_HANDLE    service_status_handle;
 148
 149 void WINAPI
 150 service_ctrl_handler(DWORD Opcode)
 151 {
 152     switch(Opcode)
 153     {
 154         case SERVICE_CONTROL_PAUSE:
 155             service_status.dwCurrentState = SERVICE_PAUSED;
 156             logerror("Pausing the service not supported");
 157             break;
 158
 159         case SERVICE_CONTROL_CONTINUE:
 160             logerror("Continuing the service not supported");
 161             service_status.dwCurrentState = SERVICE_RUNNING;
 162             break;
 163
 164         case SERVICE_CONTROL_STOP:
 165             logerror("Service stopping");
 166             empth_request_shutdown();
 167             return;
 168
 169         case SERVICE_CONTROL_INTERROGATE:
 170         /* Fall through to send current status.  */
 171             break;
 172
 173         default:
 174             logerror("Unrecognized opcode %ld in ServiceCtrlHandler",
 175                 Opcode);
 176     }
 177
 178     /* Send current status. */
 179     if (!SetServiceStatus (service_status_handle,  &service_status))
 180         logerror("SetServiceStatus error %ld",GetLastError());
 181     return;
 182 }
 183
 184 void WINAPI
 185 service_main(DWORD argc, LPTSTR *argv)
 186 {
 187     service_status.dwServiceType        = SERVICE_WIN32;
 188     service_status.dwCurrentState       = SERVICE_START_PENDING;
 189     service_status.dwControlsAccepted   = SERVICE_ACCEPT_STOP;
 190     service_status.dwWin32ExitCode      = 0;
 191     service_status.dwServiceSpecificExitCode = 0;
 192     service_status.dwCheckPoint         = 0;
 193     service_status.dwWaitHint           = 0;
 194
 195     service_status_handle = RegisterServiceCtrlHandler(
 196         DEFAULT_SERVICE_NAME, service_ctrl_handler);
 197
 198     if (service_status_handle == (SERVICE_STATUS_HANDLE)0) {
 199         logerror("RegisterServiceCtrlHandler failed %d\n", GetLastError());
 200         finish_server();
 201         return;
 202     }
 203
 204     start_server(0);
 205
 206     /* Initialization complete - report running status. */
 207     service_status.dwCurrentState       = SERVICE_RUNNING;
 208     service_status.dwCheckPoint         = 0;
 209     service_status.dwWaitHint           = 0;
 210
 211     if (!SetServiceStatus (service_status_handle, &service_status)) {
 212         logerror("SetServiceStatus error %ld\n", GetLastError());
 213     }
 214
 215     empth_exit();
 216
 217     CANT_HAPPEN("main thread terminated");
 218     finish_server();
 219 }
 220
 221 void
 222 stop_service(void)
 223 {
 224     logerror("Service stopped");
 225     service_status.dwWin32ExitCode = 0;
 226     service_status.dwCurrentState  = SERVICE_STOPPED;
 227     service_status.dwCheckPoint    = 0;
 228     service_status.dwWaitHint      = 0;
 229
 230     if (!SetServiceStatus (service_status_handle, &service_status))
 231         logerror("Error while stopping service SetServiceStatus"
 232             " error %ld", GetLastError());
 233 }
 234
 235 #endif /* _WIN32 */