Ejemplo n.º 1
0
	int DEFAULT_CC
main(int argc, char** argv)
{
	int pid;
	char text[256];
	if (argc != 2)
	{
		g_printf("Usage : xrdp-chansrv 'username'\n");
		g_exit(1);
	}
	username = argv[1];
	g_init(); /* os_calls */
	read_ini();
	read_logging_conf();
	chan_init();
	log_start(&log_conf);
	pid = g_getpid();
	log_message(&log_conf, LOG_LEVEL_DEBUG, "chansrv[main]: "
			"app started pid %d(0x%8.8x)", pid, pid);
	g_signal_kill(term_signal_handler); /* SIGKILL */
	g_signal_terminate(term_signal_handler); /* SIGTERM */
	g_signal_user_interrupt(term_signal_handler); /* SIGINT */
	g_signal_pipe(nil_signal_handler); /* SIGPIPE */
	g_signal_child_stop(stop_signal_handler);
	g_snprintf(text, 255, "xrdp_chansrv_%8.8x_main_term", pid);
	g_term_event = g_create_wait_obj(text);
	g_snprintf(text, 255, "xrdp_chansrv_%8.8x_thread_done", pid);
	g_thread_done_event = g_create_wait_obj(text);
	tc_thread_create(channel_thread_loop, 0);
	while (!g_is_wait_obj_set(g_term_event))
	{
		if (g_obj_wait(&g_term_event, 1, 0, 0, 0) != 0)
		{
			log_message(&log_conf, LOG_LEVEL_WARNING, "chansrv[main]: "
					"main: error, g_obj_wait failed");
			break;
		}
	}
	while (!g_is_wait_obj_set(g_thread_done_event))
	{
		/* wait for thread to exit */
		if (g_obj_wait(&g_thread_done_event, 1, 0, 0, 0) != 0)
		{
			log_message(&log_conf, LOG_LEVEL_WARNING, "chansrv[main]: "
					"main: error, g_obj_wait failed");
			break;
		}
	}
	/* cleanup */
	main_cleanup();
	log_message(&log_conf, LOG_LEVEL_INFO, "chansrv[main]: "
			"main: app exiting pid %d(0x%8.8x)", pid, pid);
	return 0;
}
Ejemplo n.º 2
0
struct xrdp_listen* APP_CC
xrdp_listen_create(void)
{
  struct xrdp_listen* self;

  self = (struct xrdp_listen*)g_malloc(sizeof(struct xrdp_listen), 1);
  self->pro_done_event = g_create_wait_obj("xrdp_listen_pro_done_event");
  self->process_list = list_create();
  if (g_process_sem == 0)
  {
    g_process_sem = tc_sem_create(0);
  }
  return self;
}
Ejemplo n.º 3
0
/* always called from xrdp_listen thread */
struct xrdp_process* APP_CC
xrdp_process_create(struct xrdp_listen* owner, tbus done_event)
{
  struct xrdp_process* self;
  char event_name[64];

  self = (struct xrdp_process*)g_malloc(sizeof(struct xrdp_process), 1);
  self->lis_layer = owner;
  self->done_event = done_event;
  g_session_id++;
  self->session_id = g_session_id;
  g_snprintf(event_name, 63, "xrdp_process_self_term_event_%8.8x",
             self->session_id);
  self->self_term_event = g_create_wait_obj(event_name);
  return self;
}
Ejemplo n.º 4
0
static int
xrdp_listen_create_pro_done(struct xrdp_listen *self)
{
    int pid;
    char text[256];

    pid = g_getpid();
    g_snprintf(text, 255, "xrdp_%8.8x_listen_pro_done_event", pid);
    self->pro_done_event = g_create_wait_obj(text);

    if (self->pro_done_event == 0)
    {
        log_message(LOG_LEVEL_ERROR,"Failure creating pro_done_event");
    }

    return 0;
}
Ejemplo n.º 5
0
struct xrdp_listen* APP_CC
xrdp_listen_create(void)
{
  struct xrdp_listen* self;
  int pid;
  char text[256];

  pid = g_getpid();
  self = (struct xrdp_listen*)g_malloc(sizeof(struct xrdp_listen), 1);
  g_snprintf(text, 255, "xrdp_%8.8x_listen_pro_done_event", pid);
  self->pro_done_event = g_create_wait_obj(text);
  self->process_list = list_create();
  if (g_process_sem == 0)
  {
    g_process_sem = tc_sem_create(0);
  }
  self->listen_trans = trans_create(TRANS_MODE_TCP, 16, 16);
  if (self->listen_trans == 0)
  {
    g_writeln("xrdp_listen_main_loop: trans_create failed");
  }
  return self;
}
Ejemplo n.º 6
0
int DEFAULT_CC
main(int argc, char **argv)
{
    int test;
    int host_be;
#if defined(_WIN32)
    WSADATA w;
    SC_HANDLE sc_man;
    SC_HANDLE sc_ser;
    int run_as_service;
    SERVICE_TABLE_ENTRY te[2];
#else
    int pid;
    int fd;
    int no_daemon;
    char text[256];
    char pid_file[256];
#endif

    g_init();
    ssl_init();
    /* check compiled endian with actual endian */
    test = 1;
    host_be = !((int)(*(unsigned char *)(&test)));
#if defined(B_ENDIAN)

    if (!host_be)
#endif
#if defined(L_ENDIAN)
        if (host_be)
#endif
        {
            g_writeln("endian wrong, edit arch.h");
            return 0;
        }

    /* check long, int and void* sizes */
    if (sizeof(int) != 4)
    {
        g_writeln("unusable int size, must be 4");
        return 0;
    }

    if (sizeof(long) != sizeof(void *))
    {
        g_writeln("long size must match void* size");
        return 0;
    }

    if (sizeof(long) != 4 && sizeof(long) != 8)
    {
        g_writeln("unusable long size, must be 4 or 8");
        return 0;
    }

    if (sizeof(tui64) != 8)
    {
        g_writeln("unusable tui64 size, must be 8");
        return 0;
    }

#if defined(_WIN32)
    run_as_service = 1;

    if (argc == 2)
    {
        if (g_strncasecmp(argv[1], "-help", 255) == 0 ||
                g_strncasecmp(argv[1], "--help", 255) == 0 ||
                g_strncasecmp(argv[1], "-h", 255) == 0)
        {
            g_writeln("");
            g_writeln("xrdp: A Remote Desktop Protocol server.");
            g_writeln("Copyright (C) Jay Sorg 2004-2011");
            g_writeln("See http://xrdp.sourceforge.net for more information.");
            g_writeln("");
            g_writeln("Usage: xrdp [options]");
            g_writeln("   -h: show help");
            g_writeln("   -install: install service");
            g_writeln("   -remove: remove service");
            g_writeln("");
            g_exit(0);
        }
        else if (g_strncasecmp(argv[1], "-install", 255) == 0 ||
                 g_strncasecmp(argv[1], "--install", 255) == 0 ||
                 g_strncasecmp(argv[1], "-i", 255) == 0)
        {
            /* open service manager */
            sc_man = OpenSCManager(0, 0, GENERIC_WRITE);

            if (sc_man == 0)
            {
                g_writeln("error OpenSCManager, do you have rights?");
                g_exit(0);
            }

            /* check if service is allready installed */
            sc_ser = OpenService(sc_man, "xrdp", SERVICE_ALL_ACCESS);

            if (sc_ser == 0)
            {
                /* install service */
                CreateService(sc_man, "xrdp", "xrdp", SERVICE_ALL_ACCESS,
                              SERVICE_WIN32_OWN_PROCESS, SERVICE_DEMAND_START,
                              SERVICE_ERROR_IGNORE, "c:\\temp\\xrdp\\xrdp.exe",
                              0, 0, 0, 0, 0);

            }
            else
            {
                g_writeln("error service is allready installed");
                CloseServiceHandle(sc_ser);
                CloseServiceHandle(sc_man);
                g_exit(0);
            }

            CloseServiceHandle(sc_man);
            g_exit(0);
        }
        else if (g_strncasecmp(argv[1], "-remove", 255) == 0 ||
                 g_strncasecmp(argv[1], "--remove", 255) == 0 ||
                 g_strncasecmp(argv[1], "-r", 255) == 0)
        {
            /* open service manager */
            sc_man = OpenSCManager(0, 0, GENERIC_WRITE);

            if (sc_man == 0)
            {
                g_writeln("error OpenSCManager, do you have rights?");
                g_exit(0);
            }

            /* check if service is allready installed */
            sc_ser = OpenService(sc_man, "xrdp", SERVICE_ALL_ACCESS);

            if (sc_ser == 0)
            {
                g_writeln("error service is not installed");
                CloseServiceHandle(sc_man);
                g_exit(0);
            }

            DeleteService(sc_ser);
            CloseServiceHandle(sc_man);
            g_exit(0);
        }
        else
        {
            g_writeln("Unknown Parameter");
            g_writeln("xrdp -h for help");
            g_writeln("");
            g_exit(0);
        }
    }
    else if (argc > 1)
    {
        g_writeln("Unknown Parameter");
        g_writeln("xrdp -h for help");
        g_writeln("");
        g_exit(0);
    }

    if (run_as_service)
    {
        g_memset(&te, 0, sizeof(te));
        te[0].lpServiceName = "xrdp";
        te[0].lpServiceProc = MyServiceMain;
        StartServiceCtrlDispatcher(&te);
        g_exit(0);
    }

    WSAStartup(2, &w);
#else /* _WIN32 */
    g_snprintf(pid_file, 255, "%s/xrdp.pid", XRDP_PID_PATH);
    no_daemon = 0;

    if (argc == 2)
    {
        if ((g_strncasecmp(argv[1], "-kill", 255) == 0) ||
                (g_strncasecmp(argv[1], "--kill", 255) == 0) ||
                (g_strncasecmp(argv[1], "-k", 255) == 0))
        {
            g_writeln("stopping xrdp");
            /* read the xrdp.pid file */
            fd = -1;

            if (g_file_exist(pid_file)) /* xrdp.pid */
            {
                fd = g_file_open(pid_file); /* xrdp.pid */
            }

            if (fd == -1)
            {
                g_writeln("problem opening to xrdp.pid");
                g_writeln("maybe its not running");
            }
            else
            {
                g_memset(text, 0, 32);
                g_file_read(fd, text, 31);
                pid = g_atoi(text);
                g_writeln("stopping process id %d", pid);

                if (pid > 0)
                {
                    g_sigterm(pid);
                }

                g_file_close(fd);
            }

            g_exit(0);
        }
        else if (g_strncasecmp(argv[1], "-nodaemon", 255) == 0 ||
                 g_strncasecmp(argv[1], "--nodaemon", 255) == 0 ||
                 g_strncasecmp(argv[1], "-nd", 255) == 0 ||
                 g_strncasecmp(argv[1], "--nd", 255) == 0 ||
                 g_strncasecmp(argv[1], "-ns", 255) == 0 ||
                 g_strncasecmp(argv[1], "--ns", 255) == 0)
        {
            no_daemon = 1;
        }
        else if (g_strncasecmp(argv[1], "-help", 255) == 0 ||
                 g_strncasecmp(argv[1], "--help", 255) == 0 ||
                 g_strncasecmp(argv[1], "-h", 255) == 0)
        {
            g_writeln("");
            g_writeln("xrdp: A Remote Desktop Protocol server.");
            g_writeln("Copyright (C) Jay Sorg 2004-2011");
            g_writeln("See http://xrdp.sourceforge.net for more information.");
            g_writeln("");
            g_writeln("Usage: xrdp [options]");
            g_writeln("   -h: show help");
            g_writeln("   -nodaemon: don't fork into background");
            g_writeln("   -kill: shut down xrdp");
            g_writeln("");
            g_exit(0);
        }
        else if ((g_strncasecmp(argv[1], "-v", 255) == 0) ||
                 (g_strncasecmp(argv[1], "--version", 255) == 0))
        {
            g_writeln("");
            g_writeln("xrdp: A Remote Desktop Protocol server.");
            g_writeln("Copyright (C) Jay Sorg 2004-2011");
            g_writeln("See http://xrdp.sourceforge.net for more information.");
            g_writeln("Version %s", PACKAGE_VERSION);
            g_writeln("");
            g_exit(0);
        }
        else
        {
            g_writeln("Unknown Parameter");
            g_writeln("xrdp -h for help");
            g_writeln("");
            g_exit(0);
        }
    }
    else if (argc > 1)
    {
        g_writeln("Unknown Parameter");
        g_writeln("xrdp -h for help");
        g_writeln("");
        g_exit(0);
    }

    if (g_file_exist(pid_file)) /* xrdp.pid */
    {
        g_writeln("It looks like xrdp is allready running,");
        g_writeln("if not delete the xrdp.pid file and try again");
        g_exit(0);
    }

    if (!no_daemon)
    {
        /* make sure we can write to pid file */
        fd = g_file_open(pid_file); /* xrdp.pid */

        if (fd == -1)
        {
            g_writeln("running in daemon mode with no access to pid files, quitting");
            g_exit(0);
        }

        if (g_file_write(fd, "0", 1) == -1)
        {
            g_writeln("running in daemon mode with no access to pid files, quitting");
            g_exit(0);
        }

        g_file_close(fd);
        g_file_delete(pid_file);
    }

    if (!no_daemon)
    {
        /* start of daemonizing code */
        pid = g_fork();

        if (pid == -1)
        {
            g_writeln("problem forking");
            g_exit(1);
        }

        if (0 != pid)
        {
            g_writeln("process %d started ok", pid);
            /* exit, this is the main process */
            g_exit(0);
        }

        g_sleep(1000);
        g_file_close(0);
        g_file_close(1);
        g_file_close(2);
        g_file_open("/dev/null");
        g_file_open("/dev/null");
        g_file_open("/dev/null");
        /* end of daemonizing code */
    }

    if (!no_daemon)
    {
        /* write the pid to file */
        pid = g_getpid();
        fd = g_file_open(pid_file); /* xrdp.pid */

        if (fd == -1)
        {
            g_writeln("trying to write process id to xrdp.pid");
            g_writeln("problem opening xrdp.pid");
            g_writeln("maybe no rights");
        }
        else
        {
            g_sprintf(text, "%d", pid);
            g_file_write(fd, text, g_strlen(text));
            g_file_close(fd);
        }
    }

#endif
    g_threadid = tc_get_threadid();
    g_listen = xrdp_listen_create();
    g_signal_user_interrupt(xrdp_shutdown); /* SIGINT */
    g_signal_kill(xrdp_shutdown); /* SIGKILL */
    g_signal_pipe(pipe_sig); /* SIGPIPE */
    g_signal_terminate(xrdp_shutdown); /* SIGTERM */
    g_sync_mutex = tc_mutex_create();
    g_sync1_mutex = tc_mutex_create();
    pid = g_getpid();
    g_snprintf(text, 255, "xrdp_%8.8x_main_term", pid);
    g_term_event = g_create_wait_obj(text);
    g_snprintf(text, 255, "xrdp_%8.8x_main_sync", pid);
    g_sync_event = g_create_wait_obj(text);

    if (g_term_event == 0)
    {
        g_writeln("error creating g_term_event");
    }

    xrdp_listen_main_loop(g_listen);
    xrdp_listen_delete(g_listen);
    tc_mutex_delete(g_sync_mutex);
    tc_mutex_delete(g_sync1_mutex);
    g_delete_wait_obj(g_term_event);
    g_delete_wait_obj(g_sync_event);
#if defined(_WIN32)
    /* I don't think it ever gets here */
    /* when running in win32 app mode, control c exits right away */
    WSACleanup();
#else
    /* delete the xrdp.pid file */
    g_file_delete(pid_file);
#endif
    return 0;
}
Ejemplo n.º 7
0
VOID WINAPI
MyServiceMain(DWORD dwArgc, LPTSTR *lpszArgv)
{
    WSADATA w;
    char text[256];
    int pid;
    //HANDLE event_han;
    //  int fd;
    //  char text[256];

    //  fd = g_file_open("c:\\temp\\xrdp\\log.txt");
    //  g_file_write(fd, "hi\r\n", 4);
    //event_han = RegisterEventSource(0, "xrdp");
    //log_event(event_han, "hi xrdp log");
    g_threadid = tc_get_threadid();
    g_set_current_dir("c:\\temp\\xrdp");
    g_listen = 0;
    WSAStartup(2, &w);
    g_sync_mutex = tc_mutex_create();
    g_sync1_mutex = tc_mutex_create();
    pid = g_getpid();
    g_snprintf(text, 255, "xrdp_%8.8x_main_term", pid);
    g_term_event = g_create_wait_obj(text);
    g_snprintf(text, 255, "xrdp_%8.8x_main_sync", pid);
    g_sync_event = g_create_wait_obj(text);
    g_memset(&g_service_status, 0, sizeof(SERVICE_STATUS));
    g_service_status.dwServiceType = SERVICE_WIN32_OWN_PROCESS;
    g_service_status.dwCurrentState = SERVICE_RUNNING;
    g_service_status.dwControlsAccepted = SERVICE_CONTROL_INTERROGATE |
                                          SERVICE_ACCEPT_STOP |
                                          SERVICE_ACCEPT_SHUTDOWN;
    g_service_status.dwWin32ExitCode = NO_ERROR;
    g_service_status.dwServiceSpecificExitCode = 0;
    g_service_status.dwCheckPoint = 0;
    g_service_status.dwWaitHint = 0;
    //  g_sprintf(text, "calling RegisterServiceCtrlHandler\r\n");
    //  g_file_write(fd, text, g_strlen(text));
    g_ssh = RegisterServiceCtrlHandler("xrdp", MyHandler);

    if (g_ssh != 0)
    {
        //    g_sprintf(text, "ok\r\n");
        //    g_file_write(fd, text, g_strlen(text));
        SetServiceStatus(g_ssh, &g_service_status);
        g_listen = xrdp_listen_create();
        xrdp_listen_main_loop(g_listen);
        g_sleep(100);
        g_service_status.dwCurrentState = SERVICE_STOPPED;
        SetServiceStatus(g_ssh, &g_service_status);
    }
    else
    {
        //g_sprintf(text, "RegisterServiceCtrlHandler failed\r\n");
        //g_file_write(fd, text, g_strlen(text));
    }

    xrdp_listen_delete(g_listen);
    tc_mutex_delete(g_sync_mutex);
    tc_mutex_delete(g_sync1_mutex);
    g_destroy_wait_obj(g_term_event);
    g_destroy_wait_obj(g_sync_event);
    WSACleanup();
    //CloseHandle(event_han);
}
Ejemplo n.º 8
0
int DEFAULT_CC
main(int argc, char** argv)
{
	int fd;
	int error;
	int daemon = 1;
	int pid;
	char pid_s[8];
	char text[256];

	if(g_is_root() != 0){
		g_printf("Error, xrdp-sesman service must be start with root privilege\n");
		return 0;
	}


	g_snprintf(pid_file, 255, "%s/xrdp-sesman.pid", XRDP_PID_PATH);
	if (1 == argc)
	{
		/* no options on command line. normal startup */
		g_printf("starting sesman...");
		daemon = 1;
	}
	else if ((2 == argc) && ((0 == g_strcasecmp(argv[1], "--nodaemon")) ||
			(0 == g_strcasecmp(argv[1], "-n")) ||
			(0 == g_strcasecmp(argv[1], "-ns"))))
	{
		/* starts sesman not daemonized */
		g_printf("starting sesman in foregroud...");
		daemon = 0;
	}
	else if ((2 == argc) && ((0 == g_strcasecmp(argv[1], "--help")) ||
			(0 == g_strcasecmp(argv[1], "-h"))))
	{
		/* help screen */
		g_printf("sesman - xrdp session manager\n\n");
		g_printf("usage: sesman [command]\n\n");
		g_printf("command can be one of the following:\n");
		g_printf("-n, -ns, --nodaemon	starts sesman in foreground\n");
		g_printf("-k, --kill           kills running sesman\n");
		g_printf("-h, --help           shows this help\n");
		g_printf("if no command is specified, sesman is started in background");
		g_exit(0);
	}
	else if ((2 == argc) && ((0 == g_strcasecmp(argv[1], "--kill")) ||
			(0 == g_strcasecmp(argv[1], "-k"))))
	{
		/* killing running sesman */
		/* check if sesman is running */
		if (!g_file_exist(pid_file))
		{
			g_printf("sesman is not running (pid file not found - %s)\n", pid_file);
			g_exit(1);
		}

		fd = g_file_open(pid_file);

		if (-1 == fd)
		{
			g_printf("error opening pid file[%s]: %s\n", pid_file, g_get_strerror());
			return 1;
		}

		error = g_file_read(fd, pid_s, 7);
		if (-1 == error)
		{
			g_printf("error reading pid file: %s\n", g_get_strerror());
			g_file_close(fd);
			g_exit(error);
		}
		g_file_close(fd);
		pid = g_atoi(pid_s);

		error = g_sigterm(pid);
		if (0 != error)
		{
			g_printf("error killing sesman: %s\n", g_get_strerror());
		}
		else
		{
			g_file_delete(pid_file);
		}

		g_exit(error);
	}
	else
	{
		/* there's something strange on the command line */
		g_printf("sesman - xrdp session manager\n\n");
		g_printf("error: invalid command line\n");
		g_printf("usage: sesman [ --nodaemon | --kill | --help ]\n");
		g_exit(1);
	}

	if (g_file_exist(pid_file))
	{
		g_printf("sesman is already running.\n");
		g_printf("if it's not running, try removing ");
		g_printf(pid_file);
		g_printf("\n");
		g_exit(1);
	}

	/* reading config */
	g_cfg = g_malloc(sizeof(struct config_sesman), 1);
	if (0 == g_cfg)
	{
		g_printf("error creating config: quitting.\n");
		g_exit(1);
	}
	g_cfg->log.fd = -1; /* don't use logging before reading its config */
	if (0 != config_read(g_cfg))
	{
		g_printf("error reading config: %s\nquitting.\n", g_get_strerror());
		g_exit(1);
	}

	/* starting logging subsystem */
	error = log_start(&(g_cfg->log));

	if (error != LOG_STARTUP_OK)
	{
		switch (error)
		{
			case LOG_ERROR_MALLOC:
				g_printf("error on malloc. cannot start logging. quitting.\n");
				break;
			case LOG_ERROR_FILE_OPEN:
				g_printf("error opening log file [%s]. quitting.\n", g_cfg->log.log_file);
				break;
		}
		g_exit(1);
	}

	/* libscp initialization */
	scp_init(&(g_cfg->log));

	if (daemon)
	{
		/* start of daemonizing code */
		if (g_daemonize(pid_file) == 0)
		{
			g_writeln("problem daemonize");
			g_exit(1);
		}
	}

	/* initializing locks */
	lock_init();

	/* signal handling */
	g_pid = g_getpid();
	/* old style signal handling is now managed synchronously by a
	 * separate thread. uncomment this block if you need old style
	 * signal handling and comment out thread_sighandler_start()
	 * going back to old style for the time being
	 * problem with the sigaddset functions in sig.c - jts */
#if 1
	g_signal_hang_up(sig_sesman_reload_cfg); /* SIGHUP	*/
	g_signal_user_interrupt(sig_sesman_shutdown); /* SIGINT	*/
	g_signal_kill(sig_sesman_shutdown); /* SIGKILL */
	g_signal_terminate(sig_sesman_shutdown); /* SIGTERM */
//	g_signal_child_stop(sig_sesman_session_end); /* SIGCHLD */
#endif
#if 0
	thread_sighandler_start();
#endif

	/* start program main loop */
	log_message(&(g_cfg->log), LOG_LEVEL_INFO,
			"starting sesman with pid %d", g_pid);

	/* make sure the /tmp/.X11-unix directory exist */
	if (!g_directory_exist("/tmp/.X11-unix"))
	{
		g_create_dir("/tmp/.X11-unix");
		g_chmod_hex("/tmp/.X11-unix", 0x1777);
	}

	if (!g_directory_exist(XRDP_SOCKET_PATH))
	{
		g_create_dir(XRDP_SOCKET_PATH);
		g_chmod_hex(XRDP_SOCKET_PATH, 0x1777);
	}

	g_snprintf(text, 255, "xrdp_sesman_%8.8x_main_term", g_pid);
	g_term_event = g_create_wait_obj(text);
	g_snprintf(text, 255, "xrdp_sesman_%8.8x_main_sync", g_pid);
	g_sync_event = g_create_wait_obj(text);

	scp_init_mutex();
	tc_thread_create(admin_thread, 0);
	tc_thread_create(monit_thread, 0);
	sesman_main_loop();
	scp_remove_mutex();

	g_delete_wait_obj(g_term_event);
	g_delete_wait_obj(g_sync_event);

	if (!daemon)
	{
		log_end(&(g_cfg->log));
	}

	return 0;
}
Ejemplo n.º 9
0
int DEFAULT_CC
main(int argc, char **argv)
{
    tbus waiters[4];
    int pid = 0;
    char text[256];
    char *home_text;
    char *display_text;
    char log_file[256];
    enum logReturns error;
    struct log_config logconfig;

    g_init("xrdp-chansrv"); /* os_calls */

    home_text = g_getenv("HOME");

    if (home_text == 0)
    {
        g_writeln("error reading HOME environment variable");
        g_deinit();
        return 1;
    }

    read_ini();
    pid = g_getpid();

    /* starting logging subsystem */
    g_memset(&logconfig, 0, sizeof(struct log_config));
    logconfig.program_name = "XRDP-Chansrv";
    g_snprintf(log_file, 255, "%s/xrdp-chansrv.log", home_text);
    g_writeln("chansrv::main: using log file [%s]", log_file);

    if (g_file_exist(log_file))
    {
        g_file_delete(log_file);
    }

    logconfig.log_file = log_file;
    logconfig.fd = -1;
    logconfig.log_level = LOG_LEVEL_ERROR;
    logconfig.enable_syslog = 0;
    logconfig.syslog_level = 0;
    error = log_start_from_param(&logconfig);

    if (error != LOG_STARTUP_OK)
    {
        switch (error)
        {
            case LOG_ERROR_MALLOC:
                g_writeln("error on malloc. cannot start logging. quitting.");
                break;
            case LOG_ERROR_FILE_OPEN:
                g_writeln("error opening log file [%s]. quitting.",
                          getLogFile(text, 255));
                break;
            default:
                g_writeln("log_start error");
                break;
        }

        g_deinit();
        return 1;
    }

    LOGM((LOG_LEVEL_ALWAYS, "main: app started pid %d(0x%8.8x)", pid, pid));
    /*  set up signal handler  */
    g_signal_kill(term_signal_handler); /* SIGKILL */
    g_signal_terminate(term_signal_handler); /* SIGTERM */
    g_signal_user_interrupt(term_signal_handler); /* SIGINT */
    g_signal_pipe(nil_signal_handler); /* SIGPIPE */
    g_signal_child_stop(child_signal_handler); /* SIGCHLD */
    display_text = g_getenv("DISPLAY");
    LOGM((LOG_LEVEL_INFO, "main: DISPLAY env var set to %s", display_text));
    get_display_num_from_display(display_text);

    if (g_display_num == 0)
    {
        LOGM((LOG_LEVEL_ERROR, "main: error, display is zero"));
        g_deinit();
        return 1;
    }

    LOGM((LOG_LEVEL_INFO, "main: using DISPLAY %d", g_display_num));
    g_snprintf(text, 255, "xrdp_chansrv_%8.8x_main_term", pid);
    g_term_event = g_create_wait_obj(text);
    g_snprintf(text, 255, "xrdp_chansrv_%8.8x_thread_done", pid);
    g_thread_done_event = g_create_wait_obj(text);
    g_snprintf(text, 255, "xrdp_chansrv_%8.8x_exec", pid);
    g_exec_event = g_create_wait_obj(text);
    g_exec_mutex = tc_mutex_create();
    g_exec_sem = tc_sem_create(0);
    tc_thread_create(channel_thread_loop, 0);

    while (g_term_event > 0 && !g_is_wait_obj_set(g_term_event))
    {
        waiters[0] = g_term_event;
        waiters[1] = g_exec_event;

        if (g_obj_wait(waiters, 2, 0, 0, 0) != 0)
        {
            LOGM((LOG_LEVEL_ERROR, "main: error, g_obj_wait failed"));
            break;
        }

        if (g_is_wait_obj_set(g_term_event))
        {
            break;
        }

        if (g_is_wait_obj_set(g_exec_event))
        {
            g_reset_wait_obj(g_exec_event);
            run_exec();
        }
    }

    while (g_thread_done_event > 0 && !g_is_wait_obj_set(g_thread_done_event))
    {
        /* wait for thread to exit */
        if (g_obj_wait(&g_thread_done_event, 1, 0, 0, 0) != 0)
        {
            LOGM((LOG_LEVEL_ERROR, "main: error, g_obj_wait failed"));
            break;
        }
    }

    /* cleanup */
    main_cleanup();
    LOGM((LOG_LEVEL_INFO, "main: app exiting pid %d(0x%8.8x)", pid, pid));
    g_deinit();
    return 0;
}