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 "../gen/getopt.h"
  40 #include "optlist.h"
  41
  42 int
  43 install_service(char *program_name, char *service_name, int datadir_set, char *config_file)
  44 {
  45     char strDir[1024];
  46     HANDLE schSCManager,schService;
  47     LPCTSTR lpszBinaryPathName;
  48     SERVICE_DESCRIPTION sdBuf;
  49
  50     if (strrchr(program_name,'\\') == NULL) {
  51         GetCurrentDirectory(sizeof(strDir), strDir);
  52         strcat(strDir, "\\");
  53         strcat(strDir, program_name);
  54     } else
  55         strcpy(strDir, program_name);
  56
  57     if (datadir_set) {
  58         strcat(strDir, " -D ");
  59         strcat(strDir, datadir);
  60     }
  61     if (config_file != NULL) {
  62         strcat(strDir, " -e ");
  63         strcat(strDir, config_file);
  64     }
  65
  66     if (service_name == NULL)
  67         service_name = DEFAULT_SERVICE_NAME;
  68     else if (service_name[0] == '\0')
  69         service_name = DEFAULT_SERVICE_NAME;
  70
  71     schSCManager = OpenSCManager(NULL,NULL,SC_MANAGER_ALL_ACCESS);
  72
  73     if (schSCManager == NULL) {
  74         logerror("install_service failed to open Service Control Manager");
  75         printf("Install service: failed to open Service Control Manager.\n");
  76         return EXIT_FAILURE;
  77     }
  78
  79     lpszBinaryPathName = strDir;
  80
  81     schService = CreateService(schSCManager,
  82         service_name,
  83         service_name,                   /* service name to display */
  84         SERVICE_ALL_ACCESS,             /* desired access */
  85         SERVICE_WIN32_OWN_PROCESS,      /* service type */
  86         SERVICE_AUTO_START,             /* start type */
  87         SERVICE_ERROR_NORMAL,           /* error control type */
  88         lpszBinaryPathName,             /* service's binary */
  89         NULL,                           /* no load ordering group */
  90         NULL,                           /* no tag identifier */
  91         NULL,                           /* database service dependency */
  92         NULL,                           /* LocalSystem account */
  93         NULL);                          /* no password */
  94
  95     if (schService == NULL) {
  96         logerror("install_service failed to create service %s", service_name);
  97         printf("Install service: failed to create service %s.\n", service_name);
  98         return EXIT_FAILURE;
  99     }
 100     sdBuf.lpDescription = "Server for Empire game";
 101
 102     if(!ChangeServiceConfig2(
 103           schService,                 /* handle to service */
 104           SERVICE_CONFIG_DESCRIPTION, /* change: description */
 105           &sdBuf)) {                  /* value: new description */
 106         logerror("install_service failed to set the description");
 107         printf("Install service: failed to set the description.\n");
 108     }
 109
 110     logerror("install_service successfully created the service %s", service_name);
 111     printf("Service %s installed.\n", service_name);
 112     CloseServiceHandle(schService);
 113     return EXIT_SUCCESS;
 114 }
 115
 116 int
 117 remove_service(char *service_name)
 118 {
 119     HANDLE schSCManager;
 120     SC_HANDLE hService;
 121
 122     if (service_name == NULL)
 123         service_name = DEFAULT_SERVICE_NAME;
 124     else if (service_name[0] == '\0')
 125         service_name = DEFAULT_SERVICE_NAME;
 126
 127     schSCManager = OpenSCManager(NULL, NULL, SC_MANAGER_ALL_ACCESS);
 128
 129     if (schSCManager == NULL) {
 130         logerror("remove_service failed to open Service Control Manager");
 131         printf("remove service: failed to open Service Control Manager.\n");
 132         return EXIT_FAILURE;
 133     }
 134
 135     hService = OpenService(schSCManager, service_name, SERVICE_ALL_ACCESS);
 136
 137     if (hService == NULL) {
 138         logerror("remove_service failed to open service %s", service_name);
 139         printf("Remove service: failed to open service %s.\n", service_name);
 140         return EXIT_FAILURE;
 141     }
 142
 143     if (DeleteService(hService) == 0) {
 144         logerror("remove_service failed to remove service %s", service_name);
 145         printf("Remove service: failed to remove service %s.\n", service_name);
 146         return EXIT_FAILURE;
 147     }
 148
 149     if (CloseServiceHandle(hService) == 0) {
 150         logerror("remove_service failed to close service %s", service_name);
 151         printf("Remove service: failed to close service %s.\n", service_name);
 152         return EXIT_FAILURE;
 153     } else {
 154         logerror("remove_service successfully removed service %s", service_name);
 155         printf("Service %s removed.\n", service_name);
 156         return EXIT_SUCCESS;
 157     }
 158 }
 159
 160 static SERVICE_STATUS          service_status;
 161 static SERVICE_STATUS_HANDLE   service_status_handle;
 162
 163 void WINAPI
 164 service_ctrl_handler(DWORD Opcode)
 165 {
 166     DWORD status;
 167
 168     switch(Opcode)
 169     {
 170         case SERVICE_CONTROL_PAUSE:
 171             service_status.dwCurrentState = SERVICE_PAUSED;
 172             logerror("Pausing the service not supported");
 173             break;
 174
 175         case SERVICE_CONTROL_CONTINUE:
 176             logerror("Continuing the service not supported");
 177             service_status.dwCurrentState = SERVICE_RUNNING;
 178             break;
 179
 180         case SERVICE_CONTROL_STOP:
 181             service_status.dwWin32ExitCode = 0;
 182             service_status.dwCurrentState  = SERVICE_STOPPED;
 183             service_status.dwCheckPoint    = 0;
 184             service_status.dwWaitHint      = 0;
 185
 186             if (!SetServiceStatus (service_status_handle,
 187                 &service_status)) {
 188                 status = GetLastError();
 189                 logerror("Error while stopping service SetServiceStatus"
 190                     " error %ld", status);
 191             }
 192
 193             logerror("Service stopped");
 194             return;
 195
 196         case SERVICE_CONTROL_INTERROGATE:
 197         /* Fall through to send current status.  */
 198             break;
 199
 200         default:
 201             logerror("Unrecognized opcode %ld in ServiceCtrlHandler",
 202                 Opcode);
 203     }
 204
 205     /* Send current status. */
 206     if (!SetServiceStatus (service_status_handle,  &service_status)) {
 207         status = GetLastError();
 208         logerror("SetServiceStatus error %ld",status);
 209     }
 210     return;
 211 }
 212
 213 void WINAPI
 214 service_main(DWORD argc, LPTSTR *argv)
 215 {
 216     int op;
 217     s_char tbuf[256];
 218     DWORD status;
 219     char *config_file = NULL;
 220
 221     optind = 1;
 222     opterr = 1;
 223     while ((op = getopt(argc, argv, "D:e:")) != EOF) {
 224         switch (op) {
 225         case 'D':
 226                 datadir = optarg;
 227                 break;
 228         case 'e':
 229                 config_file = optarg;
 230                 break;
 231         }
 232     }
 233
 234     if (config_file == NULL) {
 235         sprintf(tbuf, "%s/econfig", datadir);
 236         config_file = tbuf;
 237     }
 238     emp_config(config_file);
 239
 240     service_status.dwServiceType        = SERVICE_WIN32;
 241     service_status.dwCurrentState       = SERVICE_START_PENDING;
 242     service_status.dwControlsAccepted   = SERVICE_ACCEPT_STOP;
 243     service_status.dwWin32ExitCode      = 0;
 244     service_status.dwServiceSpecificExitCode = 0;
 245     service_status.dwCheckPoint         = 0;
 246     service_status.dwWaitHint           = 0;
 247
 248     service_status_handle = RegisterServiceCtrlHandler(
 249         DEFAULT_SERVICE_NAME, service_ctrl_handler);
 250
 251     if (service_status_handle == (SERVICE_STATUS_HANDLE)0) {
 252         logerror("RegisterServiceCtrlHandler failed %d\n", GetLastError());
 253         return;
 254     }
 255
 256     /* Initialization code goes here. */
 257     init_server(0);
 258     start_server(0);
 259
 260     /* Initialization complete - report running status. */
 261     service_status.dwCurrentState       = SERVICE_RUNNING;
 262     service_status.dwCheckPoint         = 0;
 263     service_status.dwWaitHint           = 0;
 264
 265     if (!SetServiceStatus (service_status_handle, &service_status)) {
 266         status = GetLastError();
 267         logerror("SetServiceStatus error %ld\n",status);
 268     }
 269
 270     empth_exit();
 271
 272 /* We should never get here.  But, just in case... */
 273     close_files();
 274
 275     loc_NTTerm();
 276
 277     // This is where the service does its work.
 278     logerror("Returning the Main Thread \n",0);
 279     return;
 280 }
 281
 282 int
 283 service_stopped(void)
 284 {
 285     if (service_status.dwCurrentState == SERVICE_STOPPED)
 286         return 1;
 287     else
 288         return 0;
 289 }
 290
 291 #endif /* _WIN32 */