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) 1986-2004, 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, int datadir_set, 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 (datadir_set) {
  57         strcat(strDir, " -D ");
  58         strcat(strDir, datadir);
  59     }
  60     if (config_file != NULL) {
  61         strcat(strDir, " -e ");
  62         strcat(strDir, config_file);
  63     }
  64
  65     if (service_name == NULL)
  66         service_name = DEFAULT_SERVICE_NAME;
  67     else if (service_name[0] == '\0')
  68         service_name = DEFAULT_SERVICE_NAME;
  69
  70     schSCManager = OpenSCManager(NULL,NULL,SC_MANAGER_ALL_ACCESS);
  71
  72     if (schSCManager == NULL) {
  73         logerror("install_service failed to open Service Control Manager");
  74         return EXIT_FAILURE;
  75     }
  76
  77     lpszBinaryPathName = strDir;
  78
  79     schService = CreateService(schSCManager,
  80         service_name,
  81         service_name,                   /* service name to display */
  82         SERVICE_ALL_ACCESS,             /* desired access */
  83         SERVICE_WIN32_OWN_PROCESS,      /* service type */
  84         SERVICE_AUTO_START,             /* start type */
  85         SERVICE_ERROR_NORMAL,           /* error control type */
  86         lpszBinaryPathName,             /* service's binary */
  87         NULL,                           /* no load ordering group */
  88         NULL,                           /* no tag identifier */
  89         NULL,                           /* database service dependency */
  90         NULL,                           /* LocalSystem account */
  91         NULL);                          /* no password */
  92
  93     if (schService == NULL) {
  94         logerror("install_service failed to create service %s", service_name);
  95         return EXIT_FAILURE;
  96     }
  97     sdBuf.lpDescription = "Server for Empire game";
  98
  99     if(!ChangeServiceConfig2(
 100           schService,                 /* handle to service */
 101           SERVICE_CONFIG_DESCRIPTION, /* change: description */
 102           &sdBuf)) {                  /* value: new description */
 103         logerror("install_service failed to set the description");
 104     }
 105
 106     printf("Service %s installed.\n", service_name);
 107     CloseServiceHandle(schService);
 108     return EXIT_SUCCESS;
 109 }
 110
 111 int
 112 remove_service(char *service_name)
 113 {
 114     HANDLE schSCManager;
 115     SC_HANDLE hService;
 116
 117     if (service_name == NULL)
 118         service_name = DEFAULT_SERVICE_NAME;
 119     else if (service_name[0] == '\0')
 120         service_name = DEFAULT_SERVICE_NAME;
 121
 122     schSCManager = OpenSCManager(NULL, NULL, SC_MANAGER_ALL_ACCESS);
 123
 124     if (schSCManager == NULL) {
 125         logerror("remove_service failed to open Service Control Manager");
 126         return EXIT_FAILURE;
 127     }
 128
 129     hService = OpenService(schSCManager, service_name, SERVICE_ALL_ACCESS);
 130
 131     if (hService == NULL) {
 132         logerror("remove_service failed to open service %s", service_name);
 133         return EXIT_FAILURE;
 134     }
 135
 136     if (DeleteService(hService) == 0) {
 137         logerror("remove_service failed to remove service %s", service_name);
 138         return EXIT_FAILURE;
 139     }
 140
 141     if (CloseServiceHandle(hService) == 0) {
 142         logerror("remove_service failed to close service %s", service_name);
 143         return EXIT_FAILURE;
 144     } else {
 145         printf("Service %s removed.\n", service_name);
 146         return EXIT_SUCCESS;
 147     }
 148 }
 149
 150 static SERVICE_STATUS          service_status;
 151 static SERVICE_STATUS_HANDLE   service_status_handle;
 152
 153 void WINAPI
 154 service_ctrl_handler(DWORD Opcode)
 155 {
 156     DWORD status;
 157
 158     switch(Opcode)
 159     {
 160         case SERVICE_CONTROL_PAUSE:
 161             service_status.dwCurrentState = SERVICE_PAUSED;
 162             logerror("Pausing the service not supported");
 163             break;
 164
 165         case SERVICE_CONTROL_CONTINUE:
 166             logerror("Continuing the service not supported");
 167             service_status.dwCurrentState = SERVICE_RUNNING;
 168             break;
 169
 170         case SERVICE_CONTROL_STOP:
 171             service_status.dwWin32ExitCode = 0;
 172             service_status.dwCurrentState  = SERVICE_STOPPED;
 173             service_status.dwCheckPoint    = 0;
 174             service_status.dwWaitHint      = 0;
 175
 176             if (!SetServiceStatus (service_status_handle,
 177                 &service_status)) {
 178                 status = GetLastError();
 179                 logerror("Error while stopping service SetServiceStatus"
 180                     " error %ld", status);
 181             }
 182
 183             logerror("Service stopped");
 184             return;
 185
 186         case SERVICE_CONTROL_INTERROGATE:
 187         /* Fall through to send current status.  */
 188             break;
 189
 190         default:
 191             logerror("Unrecognized opcode %ld in ServiceCtrlHandler",
 192                 Opcode);
 193     }
 194
 195     /* Send current status. */
 196     if (!SetServiceStatus (service_status_handle,  &service_status)) {
 197         status = GetLastError();
 198         logerror("SetServiceStatus error %ld",status);
 199     }
 200     return;
 201 }
 202
 203 void WINAPI
 204 service_main(DWORD argc, LPTSTR *argv)
 205 {
 206     init_server();
 207
 208     service_status.dwServiceType        = SERVICE_WIN32;
 209     service_status.dwCurrentState       = SERVICE_START_PENDING;
 210     service_status.dwControlsAccepted   = SERVICE_ACCEPT_STOP;
 211     service_status.dwWin32ExitCode      = 0;
 212     service_status.dwServiceSpecificExitCode = 0;
 213     service_status.dwCheckPoint         = 0;
 214     service_status.dwWaitHint           = 0;
 215
 216     service_status_handle = RegisterServiceCtrlHandler(
 217         DEFAULT_SERVICE_NAME, service_ctrl_handler);
 218
 219     if (service_status_handle == (SERVICE_STATUS_HANDLE)0) {
 220         logerror("RegisterServiceCtrlHandler failed %d\n", GetLastError());
 221         return;
 222     }
 223
 224     start_server(0);
 225
 226     /* Initialization complete - report running status. */
 227     service_status.dwCurrentState       = SERVICE_RUNNING;
 228     service_status.dwCheckPoint         = 0;
 229     service_status.dwWaitHint           = 0;
 230
 231     if (!SetServiceStatus (service_status_handle, &service_status)) {
 232         logerror("SetServiceStatus error %ld\n", GetLastError());
 233     }
 234
 235     empth_exit();
 236
 237     /* We should never get here.  But, just in case... */
 238     close_files();
 239
 240     loc_NTTerm();
 241
 242     /* This is where the service does its work. */
 243     logerror("Returning the Main Thread \n",0);
 244     return;
 245 }
 246
 247 int
 248 service_stopped(void)
 249 {
 250     if (service_status.dwCurrentState == SERVICE_STOPPED)
 251         return 1;
 252     else
 253         return 0;
 254 }
 255
 256 #endif /* _WIN32 */