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tor  0.2.3.18-rc
Classes | Defines | Functions | Variables
ntmain.c File Reference
#include "or.h"
#include "config.h"
#include "main.h"
#include "ntmain.h"
#include <event.h>
#include <windows.h>

Go to the source code of this file.

Classes

struct  service_fns
 Struct to hold dynamically loaded NT-service related function pointers. More...

Defines

#define MAIN_PRIVATE
#define GENSRV_SERVICENAME   "tor"
#define GENSRV_DISPLAYNAME   "Tor Win32 Service"
#define GENSRV_DESCRIPTION   "Provides an anonymous Internet communication system"
#define GENSRV_USERACCT   "NT AUTHORITY\\LocalService"
#define NT_SERVICE_ERROR_TORINIT_FAILED   ERROR_EXCEPTION_IN_SERVICE
#define LOAD(f)
#define MAX_SERVICE_WAIT_TIME   10

Functions

static void nt_service_control (DWORD request)
 Handles service control requests, such as stopping or starting the Tor service.
static void nt_service_body (int argc, char **argv)
 Called when the service is started via the system's service control manager.
static void nt_service_main (void)
 Main service entry point.
static SC_HANDLE nt_service_open_scm (void)
 Return a handle to the service control manager on success, or NULL on failure.
static SC_HANDLE nt_service_open (SC_HANDLE hSCManager)
 Open a handle to the Tor service using hSCManager.
static int nt_service_start (SC_HANDLE hService)
 Start the Tor service.
static int nt_service_stop (SC_HANDLE hService)
 Stop the Tor service.
static int nt_service_install (int argc, char **argv)
 Creates a Tor NT service, set to start on boot.
static int nt_service_remove (void)
 Removes the Tor NT service.
static int nt_service_cmd_start (void)
 Starts the Tor service.
static int nt_service_cmd_stop (void)
 Stops the Tor service.
static void nt_service_loadlibrary (void)
 Loads functions used by NT services.
int nt_service_is_stopping (void)
 If we're compiled to run as an NT service, and the service wants to shut down, then change our current status and return 1.
void nt_service_set_state (DWORD state)
 Set the dwCurrentState field for our service to state.
static char * nt_service_command_line (int *using_default_torrc)
 Build a formatted command line used for the NT service.
int nt_service_parse_options (int argc, char **argv, int *should_exit)

Variables

static SERVICE_STATUS service_status
static SERVICE_STATUS_HANDLE hStatus
static char ** backup_argv
static int backup_argc
struct service_fns service_fns

Define Documentation

#define GENSRV_DESCRIPTION   "Provides an anonymous Internet communication system"

Definition at line 21 of file ntmain.c.

#define GENSRV_DISPLAYNAME   "Tor Win32 Service"

Definition at line 20 of file ntmain.c.

#define GENSRV_SERVICENAME   "tor"

Definition at line 19 of file ntmain.c.

#define GENSRV_USERACCT   "NT AUTHORITY\\LocalService"

Definition at line 23 of file ntmain.c.

#define LOAD (   f)
Value:
STMT_BEGIN                                              \
    if (!(fn = GetProcAddress(library, #f))) {                          \
      log_err(LD_BUG,                                                   \
              "Couldn't find %s in advapi32.dll! We probably got the "  \
              "name wrong.", #f);                                       \
      goto err;                                                         \
    } else {                                                            \
      service_fns.f ## _fn = fn;                                        \
    }                                                                   \
  STMT_END
#define MAIN_PRIVATE

Definition at line 6 of file ntmain.c.

#define MAX_SERVICE_WAIT_TIME   10
#define NT_SERVICE_ERROR_TORINIT_FAILED   ERROR_EXCEPTION_IN_SERVICE

Definition at line 28 of file ntmain.c.


Function Documentation

static void nt_service_body ( int  argc,
char **  argv 
) [static]

Called when the service is started via the system's service control manager.

This calls tor_init() and starts the main event loop. If tor_init() fails, the service will be stopped and exit code set to NT_SERVICE_ERROR_TORINIT_FAILED.

Definition at line 248 of file ntmain.c.

{
  int r;
  (void) argc; /* unused */
  (void) argv; /* unused */
  nt_service_loadlibrary();
  service_status.dwServiceType = SERVICE_WIN32_OWN_PROCESS;
  service_status.dwCurrentState = SERVICE_START_PENDING;
  service_status.dwControlsAccepted =
        SERVICE_ACCEPT_STOP | SERVICE_ACCEPT_SHUTDOWN;
  service_status.dwWin32ExitCode = 0;
  service_status.dwServiceSpecificExitCode = 0;
  service_status.dwCheckPoint = 0;
  service_status.dwWaitHint = 1000;
  hStatus = service_fns.RegisterServiceCtrlHandlerA_fn(GENSRV_SERVICENAME,
                                   (LPHANDLER_FUNCTION) nt_service_control);

  if (hStatus == 0) {
    /* Failed to register the service control handler function */
    return;
  }

  r = tor_init(backup_argc, backup_argv);
  if (r) {
    /* Failed to start the Tor service */
    r = NT_SERVICE_ERROR_TORINIT_FAILED;
    service_status.dwCurrentState = SERVICE_STOPPED;
    service_status.dwWin32ExitCode = r;
    service_status.dwServiceSpecificExitCode = r;
    service_fns.SetServiceStatus_fn(hStatus, &service_status);
    return;
  }

  /* Set the service's status to SERVICE_RUNNING and start the main
   * event loop */
  service_status.dwCurrentState = SERVICE_RUNNING;
  service_fns.SetServiceStatus_fn(hStatus, &service_status);
  do_main_loop();
  tor_cleanup();
}

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static int nt_service_cmd_start ( void  ) [static]

Starts the Tor service.

Returns 0 on success, or -1 on error.

Definition at line 671 of file ntmain.c.

{
  SC_HANDLE hSCManager;
  SC_HANDLE hService;
  int start;

  if ((hSCManager = nt_service_open_scm()) == NULL)
    return -1;
  if ((hService = nt_service_open(hSCManager)) == NULL) {
    service_fns.CloseServiceHandle_fn(hSCManager);
    return -1;
  }

  start = nt_service_start(hService);
  service_fns.CloseServiceHandle_fn(hService);
  service_fns.CloseServiceHandle_fn(hSCManager);

  return start;
}

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static int nt_service_cmd_stop ( void  ) [static]

Stops the Tor service.

Returns 0 on success, or -1 on error.

Definition at line 693 of file ntmain.c.

{
  SC_HANDLE hSCManager;
  SC_HANDLE hService;
  int stop;

  if ((hSCManager = nt_service_open_scm()) == NULL)
    return -1;
  if ((hService = nt_service_open(hSCManager)) == NULL) {
    service_fns.CloseServiceHandle_fn(hSCManager);
    return -1;
  }

  stop = nt_service_stop(hService);
  service_fns.CloseServiceHandle_fn(hService);
  service_fns.CloseServiceHandle_fn(hSCManager);

  return stop;
}

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static char* nt_service_command_line ( int *  using_default_torrc) [static]

Build a formatted command line used for the NT service.

Return a pointer to the formatted string on success, or NULL on failure. Set *using_default_torrc to true if we're going to use the default location to torrc, or 1 if an option was specified on the command line.

Definition at line 455 of file ntmain.c.

{
  TCHAR tor_exe[MAX_PATH+1];
  char tor_exe_ascii[MAX_PATH*2+1];
  char *command=NULL, *options=NULL;
  smartlist_t *sl;
  int i;
  *using_default_torrc = 1;

  /* Get the location of tor.exe */
  if (0 == GetModuleFileName(NULL, tor_exe, MAX_PATH))
    return NULL;

  /* Get the service arguments */
  sl = smartlist_new();
  for (i = 1; i < backup_argc; ++i) {
    if (!strcmp(backup_argv[i], "--options") ||
        !strcmp(backup_argv[i], "-options")) {
      while (++i < backup_argc) {
        if (!strcmp(backup_argv[i], "-f"))
          *using_default_torrc = 0;
        smartlist_add(sl, backup_argv[i]);
      }
    }
  }
  if (smartlist_len(sl))
    options = smartlist_join_strings(sl,"\" \"",0,NULL);
  smartlist_free(sl);

#ifdef UNICODE
  wcstombs(tor_exe_ascii, tor_exe, sizeof(tor_exe_ascii));
  tor_exe_ascii[sizeof(tor_exe_ascii)-1] = '\0';
#else
  strlcpy(tor_exe_ascii, tor_exe, sizeof(tor_exe_ascii));
#endif

  /* Allocate a string for the NT service command line and */
  /* Format the service command */
  if (options) {
    tor_asprintf(&command, "\"%s\" --nt-service \"%s\"",
                 tor_exe_ascii, options);
  } else { /* ! options */
    tor_asprintf(&command, "\"%s\" --nt-service", tor_exe_ascii);
  }

  tor_free(options);
  return command;
}

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static void nt_service_control ( DWORD  request) [static]

Handles service control requests, such as stopping or starting the Tor service.

Definition at line 223 of file ntmain.c.

{
  static struct timeval exit_now;
  exit_now.tv_sec  = 0;
  exit_now.tv_usec = 0;

  nt_service_loadlibrary();

  switch (request) {
    case SERVICE_CONTROL_STOP:
        case SERVICE_CONTROL_SHUTDOWN:
          log_notice(LD_GENERAL,
                     "Got stop/shutdown request; shutting down cleanly.");
          service_status.dwCurrentState = SERVICE_STOP_PENDING;
          event_base_loopexit(tor_libevent_get_base(), &exit_now);
          return;
  }
  service_fns.SetServiceStatus_fn(hStatus, &service_status);
}

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static int nt_service_install ( int  argc,
char **  argv 
) [static]

Creates a Tor NT service, set to start on boot.

The service will be started if installation succeeds. Returns 0 on success, or -1 on failure.

Definition at line 508 of file ntmain.c.

{
  /* Notes about developing NT services:
   *
   * 1. Don't count on your CWD. If an absolute path is not given, the
   *    fopen() function goes wrong.
   * 2. The parameters given to the nt_service_body() function differ
   *    from those given to main() function.
   */

  SC_HANDLE hSCManager = NULL;
  SC_HANDLE hService = NULL;
  SERVICE_DESCRIPTIONA sdBuff;
  char *command;
  char *errmsg;
  const char *user_acct = NULL;
  const char *password = "";
  int i;
  OSVERSIONINFOEX info;
  SID_NAME_USE sidUse;
  DWORD sidLen = 0, domainLen = 0;
  int is_win2k_or_worse = 0;
  int using_default_torrc = 0;

  nt_service_loadlibrary();

  /* Open the service control manager so we can create a new service */
  if ((hSCManager = nt_service_open_scm()) == NULL)
    return -1;
  /* Build the command line used for the service */
  if ((command = nt_service_command_line(&using_default_torrc)) == NULL) {
    printf("Unable to build service command line.\n");
    service_fns.CloseServiceHandle_fn(hSCManager);
    return -1;
  }

  for (i=1; i < argc; ++i) {
    if (!strcmp(argv[i], "--user") && i+1<argc) {
      user_acct = argv[i+1];
      ++i;
    }
    if (!strcmp(argv[i], "--password") && i+1<argc) {
      password = argv[i+1];
      ++i;
    }
  }

  /* Compute our version and see whether we're running win2k or earlier. */
  memset(&info, 0, sizeof(info));
  info.dwOSVersionInfoSize = sizeof(info);
  if (! GetVersionEx((LPOSVERSIONINFO)&info)) {
    printf("Call to GetVersionEx failed.\n");
    is_win2k_or_worse = 1;
  } else {
    if (info.dwMajorVersion < 5 ||
        (info.dwMajorVersion == 5 && info.dwMinorVersion == 0))
      is_win2k_or_worse = 1;
  }

  if (!user_acct) {
    if (is_win2k_or_worse) {
      /* On Win2k, there is no LocalService account, so we actually need to
       * fall back on NULL (the system account). */
      printf("Running on Win2K or earlier, so the LocalService account "
             "doesn't exist.  Falling back to SYSTEM account.\n");
    } else {
      /* Genericity is apparently _so_ last year in Redmond, where some
       * accounts are accounts that you can look up, and some accounts
       * are magic and undetectable via the security subsystem. See
       * http://msdn2.microsoft.com/en-us/library/ms684188.aspx
       */
      printf("Running on a Post-Win2K OS, so we'll assume that the "
             "LocalService account exists.\n");
      user_acct = GENSRV_USERACCT;
    }
  } else if (0 && service_fns.LookupAccountNameA_fn(NULL, // On this system
                            user_acct,
                            NULL, &sidLen, // Don't care about the SID
                            NULL, &domainLen, // Don't care about the domain
                            &sidUse) == 0) {
    /* XXXX For some reason, the above test segfaults. Fix that. */
    printf("User \"%s\" doesn't seem to exist.\n", user_acct);
    return -1;
  } else {
    printf("Will try to install service as user \"%s\".\n", user_acct);
  }
  /* XXXX This warning could be better about explaining how to resolve the
   * situation. */
  if (using_default_torrc)
    printf("IMPORTANT NOTE:\n"
        "    The Tor service will run under the account \"%s\".  This means\n"
        "    that Tor will look for its configuration file under that\n"
        "    account's Application Data directory, which is probably not\n"
        "    the same as yours.\n", user_acct?user_acct:"<local system>");

  /* Create the Tor service, set to auto-start on boot */
  if ((hService = service_fns.CreateServiceA_fn(hSCManager, GENSRV_SERVICENAME,
                                GENSRV_DISPLAYNAME,
                                SERVICE_ALL_ACCESS, SERVICE_WIN32_OWN_PROCESS,
                                SERVICE_AUTO_START, SERVICE_ERROR_IGNORE,
                                command, NULL, NULL, NULL,
                                user_acct, password)) == NULL) {
    errmsg = format_win32_error(GetLastError());
    printf("CreateService() failed : %s\n", errmsg);
    service_fns.CloseServiceHandle_fn(hSCManager);
    tor_free(errmsg);
    tor_free(command);
    return -1;
  }
  printf("Done with CreateService.\n");

  /* Set the service's description */
  sdBuff.lpDescription = (char*)GENSRV_DESCRIPTION;
  service_fns.ChangeServiceConfig2A_fn(hService, SERVICE_CONFIG_DESCRIPTION,
                                       &sdBuff);
  printf("Service installed successfully\n");

  /* Start the service initially */
  nt_service_start(hService);

  service_fns.CloseServiceHandle_fn(hService);
  service_fns.CloseServiceHandle_fn(hSCManager);
  tor_free(command);

  return 0;
}

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int nt_service_is_stopping ( void  )

If we're compiled to run as an NT service, and the service wants to shut down, then change our current status and return 1.

Else return 0.

Definition at line 195 of file ntmain.c.

{
  /* If we haven't loaded the function pointers, we can't possibly be an NT
   * service trying to shut down. */
  if (!service_fns.loaded)
    return 0;

  if (service_status.dwCurrentState == SERVICE_STOP_PENDING) {
    service_status.dwWin32ExitCode = 0;
    service_status.dwCurrentState = SERVICE_STOPPED;
    service_fns.SetServiceStatus_fn(hStatus, &service_status);
    return 1;
  } else if (service_status.dwCurrentState == SERVICE_STOPPED) {
    return 1;
  }
  return 0;
}

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static void nt_service_loadlibrary ( void  ) [static]

Loads functions used by NT services.

Returns on success, or prints a complaint to stdout and exits on error.

Definition at line 139 of file ntmain.c.

{
  HMODULE library = 0;
  void *fn;

  if (service_fns.loaded)
    return;

  if (!(library = load_windows_system_library(TEXT("advapi32.dll")))) {
    log_err(LD_GENERAL, "Couldn't open advapi32.dll.  Are you trying to use "
            "NT services on Windows 98? That doesn't work.");
    goto err;
  }

/* Helper macro: try to load a function named <b>f</b> from "library" into
 * service_functions.<b>f</b>_fn.  On failure, log an error message, and goto
 * err.
 */
#define LOAD(f) STMT_BEGIN                                              \
    if (!(fn = GetProcAddress(library, #f))) {                          \
      log_err(LD_BUG,                                                   \
              "Couldn't find %s in advapi32.dll! We probably got the "  \
              "name wrong.", #f);                                       \
      goto err;                                                         \
    } else {                                                            \
      service_fns.f ## _fn = fn;                                        \
    }                                                                   \
  STMT_END

  LOAD(ChangeServiceConfig2A);
  LOAD(CloseServiceHandle);
  LOAD(ControlService);
  LOAD(CreateServiceA);
  LOAD(DeleteService);
  LOAD(OpenSCManagerA);
  LOAD(OpenServiceA);
  LOAD(QueryServiceStatus);
  LOAD(RegisterServiceCtrlHandlerA);
  LOAD(SetServiceStatus);
  LOAD(StartServiceCtrlDispatcherA);
  LOAD(StartServiceA);
  LOAD(LookupAccountNameA);

  service_fns.loaded = 1;

  return;
 err:
  printf("Unable to load library support for NT services: exiting.\n");
  exit(1);
}

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static void nt_service_main ( void  ) [static]

Main service entry point.

Starts the service control dispatcher and waits until the service status is set to SERVICE_STOPPED.

Definition at line 292 of file ntmain.c.

{
  SERVICE_TABLE_ENTRYA table[2];
  DWORD result = 0;
  char *errmsg;
  nt_service_loadlibrary();
  table[0].lpServiceName = (char*)GENSRV_SERVICENAME;
  table[0].lpServiceProc = (LPSERVICE_MAIN_FUNCTIONA)nt_service_body;
  table[1].lpServiceName = NULL;
  table[1].lpServiceProc = NULL;

  if (!service_fns.StartServiceCtrlDispatcherA_fn(table)) {
    result = GetLastError();
    errmsg = format_win32_error(result);
    printf("Service error %d : %s\n", (int) result, errmsg);
    tor_free(errmsg);
    if (result == ERROR_FAILED_SERVICE_CONTROLLER_CONNECT) {
      if (tor_init(backup_argc, backup_argv) < 0)
        return;
      switch (get_options()->command) {
      case CMD_RUN_TOR:
        do_main_loop();
        break;
      case CMD_LIST_FINGERPRINT:
      case CMD_HASH_PASSWORD:
      case CMD_VERIFY_CONFIG:
        log_err(LD_CONFIG, "Unsupported command (--list-fingerprint, "
                "--hash-password, or --verify-config) in NT service.");
        break;
      case CMD_RUN_UNITTESTS:
      default:
        log_err(LD_CONFIG, "Illegal command number %d: internal error.",
                get_options()->command);
      }
      tor_cleanup();
    }
  }
}

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static SC_HANDLE nt_service_open ( SC_HANDLE  hSCManager) [static]

Open a handle to the Tor service using hSCManager.

Return NULL on failure.

Definition at line 352 of file ntmain.c.

{
  SC_HANDLE hService;
  char *errmsg = NULL;
  nt_service_loadlibrary();
  if ((hService = service_fns.OpenServiceA_fn(hSCManager, GENSRV_SERVICENAME,
                              SERVICE_ALL_ACCESS)) == NULL) {
    errmsg = format_win32_error(GetLastError());
    printf("OpenService() failed : %s\n", errmsg);
    tor_free(errmsg);
  }
  return hService;
}

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static SC_HANDLE nt_service_open_scm ( void  ) [static]

Return a handle to the service control manager on success, or NULL on failure.

Definition at line 334 of file ntmain.c.

{
  SC_HANDLE hSCManager;
  char *errmsg = NULL;

  nt_service_loadlibrary();
  if ((hSCManager = service_fns.OpenSCManagerA_fn(
                            NULL, NULL, SC_MANAGER_CREATE_SERVICE)) == NULL) {
    errmsg = format_win32_error(GetLastError());
    printf("OpenSCManager() failed : %s\n", errmsg);
    tor_free(errmsg);
  }
  return hSCManager;
}

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int nt_service_parse_options ( int  argc,
char **  argv,
int *  should_exit 
)

Definition at line 714 of file ntmain.c.

{
  backup_argv = argv;
  backup_argc = argc;
  *should_exit = 0;

  if ((argc >= 3) &&
      (!strcmp(argv[1], "-service") || !strcmp(argv[1], "--service"))) {
    nt_service_loadlibrary();
    *should_exit = 1;
    if (!strcmp(argv[2], "install"))
      return nt_service_install(argc, argv);
    if (!strcmp(argv[2], "remove"))
      return nt_service_remove();
    if (!strcmp(argv[2], "start"))
      return nt_service_cmd_start();
    if (!strcmp(argv[2], "stop"))
      return nt_service_cmd_stop();
    printf("Unrecognized service command '%s'\n", argv[2]);
    return 1;
  }
  if (argc >= 2) {
    if (!strcmp(argv[1], "-nt-service") || !strcmp(argv[1], "--nt-service")) {
      nt_service_loadlibrary();
      nt_service_main();
      *should_exit = 1;
      return 0;
    }
    // These values have been deprecated since 0.1.1.2-alpha; we've warned
    // about them since 0.1.2.7-alpha.
    if (!strcmp(argv[1], "-install") || !strcmp(argv[1], "--install")) {
      nt_service_loadlibrary();
      fprintf(stderr,
            "The %s option is deprecated; use \"--service install\" instead.",
            argv[1]);
      *should_exit = 1;
      return nt_service_install(argc, argv);
    }
    if (!strcmp(argv[1], "-remove") || !strcmp(argv[1], "--remove")) {
      nt_service_loadlibrary();
      fprintf(stderr,
            "The %s option is deprecated; use \"--service remove\" instead.",
            argv[1]);
      *should_exit = 1;
      return nt_service_remove();
    }
  }
  *should_exit = 0;
  return 0;
}

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static int nt_service_remove ( void  ) [static]

Removes the Tor NT service.

Returns 0 if the service was successfully removed, or -1 on error.

Definition at line 638 of file ntmain.c.

{
  SC_HANDLE hSCManager = NULL;
  SC_HANDLE hService = NULL;
  char *errmsg;

  nt_service_loadlibrary();
  if ((hSCManager = nt_service_open_scm()) == NULL)
    return -1;
  if ((hService = nt_service_open(hSCManager)) == NULL) {
    service_fns.CloseServiceHandle_fn(hSCManager);
    return -1;
  }

  nt_service_stop(hService);
  if (service_fns.DeleteService_fn(hService) == FALSE) {
    errmsg = format_win32_error(GetLastError());
    printf("DeleteService() failed : %s\n", errmsg);
    tor_free(errmsg);
    service_fns.CloseServiceHandle_fn(hService);
    service_fns.CloseServiceHandle_fn(hSCManager);
    return -1;
  }

  service_fns.CloseServiceHandle_fn(hService);
  service_fns.CloseServiceHandle_fn(hSCManager);
  printf("Service removed successfully\n");

  return 0;
}

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void nt_service_set_state ( DWORD  state)

Set the dwCurrentState field for our service to state.

Definition at line 215 of file ntmain.c.

{
  service_status.dwCurrentState = state;
}

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static int nt_service_start ( SC_HANDLE  hService) [static]

Start the Tor service.

Return 0 if the service is started or was previously running. Return -1 on error.

Definition at line 369 of file ntmain.c.

{
  char *errmsg = NULL;

  nt_service_loadlibrary();

  service_fns.QueryServiceStatus_fn(hService, &service_status);
  if (service_status.dwCurrentState == SERVICE_RUNNING) {
    printf("Service is already running\n");
    return 0;
  }

  if (service_fns.StartServiceA_fn(hService, 0, NULL)) {
    /* Loop until the service has finished attempting to start */
    while (service_fns.QueryServiceStatus_fn(hService, &service_status) &&
           (service_status.dwCurrentState == SERVICE_START_PENDING)) {
      Sleep(500);
    }

    /* Check if it started successfully or not */
    if (service_status.dwCurrentState == SERVICE_RUNNING) {
      printf("Service started successfully\n");
      return 0;
    } else {
      errmsg = format_win32_error(service_status.dwWin32ExitCode);
      printf("Service failed to start : %s\n", errmsg);
      tor_free(errmsg);
    }
  } else {
    errmsg = format_win32_error(GetLastError());
    printf("StartService() failed : %s\n", errmsg);
    tor_free(errmsg);
  }
  return -1;
}

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static int nt_service_stop ( SC_HANDLE  hService) [static]

Stop the Tor service.

Return 0 if the service is stopped or was not previously running. Return -1 on error.

Wait at most 10 seconds for the service to stop.

Definition at line 408 of file ntmain.c.

{
#define MAX_SERVICE_WAIT_TIME 10
  int wait_time;
  char *errmsg = NULL;
  nt_service_loadlibrary();

  service_fns.QueryServiceStatus_fn(hService, &service_status);
  if (service_status.dwCurrentState == SERVICE_STOPPED) {
    printf("Service is already stopped\n");
    return 0;
  }

  if (service_fns.ControlService_fn(hService, SERVICE_CONTROL_STOP,
                                    &service_status)) {
    wait_time = 0;
    while (service_fns.QueryServiceStatus_fn(hService, &service_status) &&
           (service_status.dwCurrentState != SERVICE_STOPPED) &&
           (wait_time < MAX_SERVICE_WAIT_TIME)) {
      Sleep(1000);
      wait_time++;
    }
    if (service_status.dwCurrentState == SERVICE_STOPPED) {
      printf("Service stopped successfully\n");
      return 0;
    } else if (wait_time == MAX_SERVICE_WAIT_TIME) {
      printf("Service did not stop within %d seconds.\n", wait_time);
    } else {
      errmsg = format_win32_error(GetLastError());
      printf("QueryServiceStatus() failed : %s\n",errmsg);
      tor_free(errmsg);
    }
  } else {
    errmsg = format_win32_error(GetLastError());
    printf("ControlService() failed : %s\n", errmsg);
    tor_free(errmsg);
  }
  return -1;
}

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Variable Documentation

int backup_argc [static]

Definition at line 38 of file ntmain.c.

char** backup_argv [static]

Definition at line 37 of file ntmain.c.

SERVICE_STATUS_HANDLE hStatus [static]

Definition at line 31 of file ntmain.c.

SERVICE_STATUS service_status [static]

Definition at line 30 of file ntmain.c.