/* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 8 -*- * * Copyright (C) 2008 William Jon McCann * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. * */ #include "config.h" #include #include #include #include #include #include #include #include #include #include #include #include #include #define DBUS_API_SUBJECT_TO_CHANGE #include #include #include "gdm-xerrors.h" #include "gdm-signal-handler.h" #include "gdm-log.h" #include "gdm-common.h" #include "gdm-xdmcp-chooser-slave.h" #include "gdm-settings.h" #include "gdm-settings-direct.h" #include "gdm-settings-keys.h" static GdmSettings *settings = NULL; static int gdm_return_code = 0; static DBusGConnection * get_system_bus (void) { GError *error; DBusGConnection *bus; DBusConnection *connection; error = NULL; bus = dbus_g_bus_get (DBUS_BUS_SYSTEM, &error); if (bus == NULL) { g_warning ("Couldn't connect to system bus: %s", error->message); g_error_free (error); goto out; } connection = dbus_g_connection_get_connection (bus); dbus_connection_set_exit_on_disconnect (connection, FALSE); out: return bus; } static gboolean signal_cb (int signo, gpointer data) { int ret; g_debug ("Got callback for signal %d", signo); ret = TRUE; switch (signo) { case SIGSEGV: case SIGBUS: case SIGILL: case SIGABRT: g_debug ("Caught signal %d.", signo); ret = FALSE; break; case SIGFPE: case SIGPIPE: /* let the fatal signals interrupt us */ g_debug ("Caught signal %d, shutting down abnormally.", signo); ret = FALSE; break; case SIGINT: case SIGTERM: /* let the fatal signals interrupt us */ g_debug ("Caught signal %d, shutting down normally.", signo); ret = FALSE; break; case SIGHUP: g_debug ("Got HUP signal"); /* FIXME: * Reread config stuff like system config files, VPN service files, etc */ ret = TRUE; break; case SIGUSR1: g_debug ("Got USR1 signal"); /* we get this from xorg - can't use for anything else */ ret = TRUE; gdm_log_toggle_debug (); break; case SIGUSR2: g_debug ("Got USR2 signal"); ret = TRUE; gdm_log_toggle_debug (); break; default: g_debug ("Caught unhandled signal %d", signo); ret = TRUE; break; } return ret; } static void on_slave_stopped (GdmSlave *slave, GMainLoop *main_loop) { g_debug ("slave finished"); gdm_return_code = 0; g_main_loop_quit (main_loop); } static gboolean is_debug_set (void) { gboolean debug = FALSE; /* enable debugging for unstable builds */ if (gdm_is_version_unstable ()) { return TRUE; } gdm_settings_direct_get_boolean (GDM_KEY_DEBUG, &debug); return debug; } int main (int argc, char **argv) { GMainLoop *main_loop; GOptionContext *context; DBusGConnection *connection; GdmSlave *slave; static char *display_id = NULL; GdmSignalHandler *signal_handler; static GOptionEntry entries [] = { { "display-id", 0, 0, G_OPTION_ARG_STRING, &display_id, N_("Display ID"), N_("ID") }, { NULL } }; bindtextdomain (GETTEXT_PACKAGE, GNOMELOCALEDIR); textdomain (GETTEXT_PACKAGE); setlocale (LC_ALL, ""); gdm_set_fatal_warnings_if_unstable (); g_type_init (); context = g_option_context_new (_("GNOME Display Manager Slave")); g_option_context_add_main_entries (context, entries, NULL); g_option_context_parse (context, &argc, &argv, NULL); g_option_context_free (context); connection = get_system_bus (); if (connection == NULL) { goto out; } gdm_xerrors_init (); gdm_log_init (); settings = gdm_settings_new (); if (settings == NULL) { g_warning ("Unable to initialize settings"); goto out; } if (! gdm_settings_direct_init (settings, DATADIR "/gdm/gdm.schemas", "/")) { g_warning ("Unable to initialize settings"); goto out; } gdm_log_set_debug (is_debug_set ()); if (display_id == NULL) { g_critical ("No display ID set"); exit (1); } main_loop = g_main_loop_new (NULL, FALSE); signal_handler = gdm_signal_handler_new (); gdm_signal_handler_set_fatal_func (signal_handler, (GDestroyNotify)g_main_loop_quit, main_loop); gdm_signal_handler_add (signal_handler, SIGTERM, signal_cb, NULL); gdm_signal_handler_add (signal_handler, SIGINT, signal_cb, NULL); gdm_signal_handler_add (signal_handler, SIGILL, signal_cb, NULL); gdm_signal_handler_add (signal_handler, SIGBUS, signal_cb, NULL); gdm_signal_handler_add (signal_handler, SIGFPE, signal_cb, NULL); gdm_signal_handler_add (signal_handler, SIGHUP, signal_cb, NULL); gdm_signal_handler_add (signal_handler, SIGSEGV, signal_cb, NULL); gdm_signal_handler_add (signal_handler, SIGABRT, signal_cb, NULL); gdm_signal_handler_add (signal_handler, SIGUSR1, signal_cb, NULL); gdm_signal_handler_add (signal_handler, SIGUSR2, signal_cb, NULL); slave = gdm_xdmcp_chooser_slave_new (display_id); if (slave == NULL) { goto out; } g_signal_connect (slave, "stopped", G_CALLBACK (on_slave_stopped), main_loop); gdm_slave_start (slave); g_main_loop_run (main_loop); if (slave != NULL) { g_object_unref (slave); } if (signal_handler != NULL) { g_object_unref (signal_handler); } g_main_loop_unref (main_loop); out: g_debug ("Slave finished"); return gdm_return_code; }