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/* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 8 -*-
*
* Copyright (C) 2008 William Jon McCann <jmccann@redhat.com>
*
* 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
*/
#include "config.h"
#include <stdlib.h>
#include <stdio.h>
#include <unistd.h>
#include <string.h>
#include <locale.h>
#include <glib/gi18n.h>
#include "common/gdm-common.h"
static const char *send_command = NULL;
static gboolean use_xnest = FALSE;
static gboolean no_lock = FALSE;
static gboolean debug_in = FALSE;
static gboolean authenticate = FALSE;
static gboolean startnew = FALSE;
static gboolean monte_carlo_pi = FALSE;
static gboolean show_version = FALSE;
static char **args_remaining = NULL;
/* Keep all config options for compatibility even if they are noops */
GOptionEntry options [] = {
{ "command", 'c', 0, G_OPTION_ARG_STRING, &send_command, N_("Only the VERSION command is supported"), N_("COMMAND") },
{ "xnest", 'n', 0, G_OPTION_ARG_NONE, &use_xnest, N_("Ignored — retained for compatibility"), NULL },
{ "no-lock", 'l', 0, G_OPTION_ARG_NONE, &no_lock, N_("Ignored — retained for compatibility"), NULL },
{ "debug", 'd', 0, G_OPTION_ARG_NONE, &debug_in, N_("Debugging output"), NULL },
{ "authenticate", 'a', 0, G_OPTION_ARG_NONE, &authenticate, N_("Ignored — retained for compatibility"), NULL },
{ "startnew", 's', 0, G_OPTION_ARG_NONE, &startnew, N_("Ignored — retained for compatibility"), NULL },
{ "monte-carlo-pi", 0, 0, G_OPTION_ARG_NONE, &monte_carlo_pi, NULL, NULL },
{ "version", 0, 0, G_OPTION_ARG_NONE, &show_version, N_("Version of this application"), NULL },
{ G_OPTION_REMAINING, 0, 0, G_OPTION_ARG_STRING_ARRAY, &args_remaining, NULL, NULL },
{ NULL }
};
static gboolean
is_program_in_path (const char *program)
{
char *tmp = g_find_program_in_path (program);
if (tmp != NULL) {
g_free (tmp);
return TRUE;
} else {
return FALSE;
}
}
static void
maybe_lock_screen (void)
{
gboolean use_gscreensaver = FALSE;
GError *error = NULL;
char *command;
if (is_program_in_path ("gnome-screensaver-command")) {
use_gscreensaver = TRUE;
} else if (! is_program_in_path ("xscreensaver-command")) {
return;
}
if (use_gscreensaver) {
command = g_strdup ("gnome-screensaver-command --lock");
} else {
command = g_strdup ("xscreensaver-command -lock");
}
if (! g_spawn_command_line_async (command, &error)) {
g_warning ("Cannot lock screen: %s", error->message);
g_error_free (error);
}
g_free (command);
if (! use_gscreensaver) {
command = g_strdup ("xscreensaver-command -throttle");
if (! g_spawn_command_line_async (command, &error)) {
g_warning ("Cannot disable screensaver engines: %s", error->message);
g_error_free (error);
}
g_free (command);
}
}
static void
calc_pi (void)
{
unsigned long n = 0, h = 0;
double x, y;
printf ("\n");
for (;;) {
x = g_random_double ();
y = g_random_double ();
if (x*x + y*y <= 1)
h++;
n++;
if ( ! (n & 0xfff))
printf ("pi ~~ %1.10f\t(%lu/%lu * 4) iteration: %lu \r",
((double)h)/(double)n * 4.0, h, n, n);
}
}
int
main (int argc, char *argv[])
{
GOptionContext *ctx;
gboolean res;
GError *error;
bindtextdomain (GETTEXT_PACKAGE, GNOMELOCALEDIR);
bind_textdomain_codeset (GETTEXT_PACKAGE, "UTF-8");
textdomain (GETTEXT_PACKAGE);
setlocale (LC_ALL, "");
/* Option parsing */
ctx = g_option_context_new (_("— New GDM login"));
g_option_context_set_translation_domain (ctx, GETTEXT_PACKAGE);
g_option_context_add_main_entries (ctx, options, NULL);
g_option_context_parse (ctx, &argc, &argv, NULL);
g_option_context_free (ctx);
if (show_version) {
g_print ("%s %s\n", argv [0], VERSION);
exit (EXIT_FAILURE);
}
/* don't support commands other than VERSION */
if (send_command != NULL) {
if (strcmp (send_command, "VERSION") == 0) {
g_print ("GDM %s \n", VERSION);
return 0;
} else {
g_warning ("No longer supported");
}
return 1;
}
if (monte_carlo_pi) {
calc_pi ();
return 0;
}
if (use_xnest) {
g_warning ("Not yet implemented");
return 1;
}
error = NULL;
res = gdm_goto_login_session (&error);
if (! res) {
g_printerr ("%s", error->message);
} else {
maybe_lock_screen ();
}
return 1;
}
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