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|
/***************************************************************************
* CVSID: $Id$
*
* main.c : Main for polkitd
*
* Copyright (C) 2006 David Zeuthen, <david@fubar.dk>
*
* 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 St, Fifth Floor, Boston, MA 02110-1301 USA
*
**************************************************************************/
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#include <stdio.h>
#include <stdlib.h>
#include <getopt.h>
#include <string.h>
#include <errno.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <dbus/dbus-glib.h>
#include "polkit-session.h"
#include "polkit-manager.h"
#include "polkit-interface-session-glue.h"
#include "polkit-interface-manager-glue.h"
/** Print out program usage.
*
*/
static void
usage (int argc, char *argv[])
{
fprintf (stderr, "\n" "usage : polkitd [--no-daemon] [--verbose]\n");
fprintf (stderr,
"\n"
" -n, --no-daemon Do not daemonize\n"
" -v, --verbose Print out debug\n"
" -h, --help Show this information and exit\n"
" -V, --version Output version information and exit"
"\n"
"The PolicyKit daemon maintains a list of privileges and\n"
"provides interfaces for changing it.\n"
"\n"
"For more information visit http://freedesktop.org/Software/hal\n"
"\n");
}
static void
delete_pid (void)
{
unlink (POLKITD_PID_FILE);
}
int
main (int argc, char *argv[])
{
DBusGConnection *bus;
DBusGProxy *bus_proxy;
GError *error = NULL;
PolicyKitManager *manager;
GMainLoop *mainloop;
guint request_name_result;
int ret;
gboolean no_daemon = FALSE;
gboolean is_verbose = FALSE;
static const struct option long_options[] = {
{"help", no_argument, NULL, 'h'},
{"no-daemon", no_argument, NULL, 'n'},
{"verbose", no_argument, NULL, 'v'},
{"version", no_argument, NULL, 'V'},
{NULL, 0, NULL, 0}
};
ret = 1;
g_type_init ();
while (TRUE) {
int c;
c = getopt_long (argc, argv, "nhVv", long_options, NULL);
if (c == -1)
break;
switch (c) {
case 'n':
no_daemon = TRUE;
break;
case 'v':
is_verbose = TRUE;
break;
case 'h':
usage (argc, argv);
ret = 0;
goto out;
case 'V':
printf (PACKAGE_NAME " version " PACKAGE_VERSION "\n");
ret = 0;
goto out;
default:
usage (argc, argv);
goto out;
}
}
if (!no_daemon) {
int child_pid;
int dev_null_fd;
int pf;
ssize_t written;
char pid[9];
if (chdir ("/") < 0) {
g_warning ("Could not chdir to /: %s", strerror (errno));
goto out;
}
child_pid = fork ();
switch (child_pid) {
case -1:
g_warning ("Cannot fork(): %s", strerror (errno));
goto out;
case 0:
/* child */
dev_null_fd = open ("/dev/null", O_RDWR);
/* ignore if we can't open /dev/null */
if (dev_null_fd >= 0) {
/* attach /dev/null to stdout, stdin, stderr */
dup2 (dev_null_fd, 0);
dup2 (dev_null_fd, 1);
dup2 (dev_null_fd, 2);
close (dev_null_fd);
}
umask (022);
break;
default:
/* parent exits */
exit (0);
break;
}
/* create session */
setsid ();
/* remove old pid file */
unlink (POLKITD_PID_FILE);
/* make a new pid file */
if ((pf = open (POLKITD_PID_FILE, O_WRONLY|O_CREAT|O_TRUNC|O_EXCL, 0644)) > 0) {
snprintf (pid, sizeof(pid), "%lu\n", (long unsigned) getpid ());
written = write (pf, pid, strlen(pid));
close (pf);
g_atexit (delete_pid);
}
} else {
g_debug (("not becoming a daemon"));
}
g_type_init ();
dbus_g_object_type_install_info (POLKIT_TYPE_MANAGER, &dbus_glib_polkit_manager_object_info);
dbus_g_object_type_install_info (POLKIT_TYPE_SESSION, &dbus_glib_polkit_session_object_info);
dbus_g_error_domain_register (POLKIT_MANAGER_ERROR, NULL, POLKIT_MANAGER_TYPE_ERROR);
dbus_g_error_domain_register (POLKIT_SESSION_ERROR, NULL, POLKIT_SESSION_TYPE_ERROR);
mainloop = g_main_loop_new (NULL, FALSE);
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;
}
bus_proxy = dbus_g_proxy_new_for_name (bus, "org.freedesktop.DBus",
"/org/freedesktop/DBus",
"org.freedesktop.DBus");
if (!dbus_g_proxy_call (bus_proxy, "RequestName", &error,
G_TYPE_STRING, "org.freedesktop.PolicyKit",
G_TYPE_UINT, 0,
G_TYPE_INVALID,
G_TYPE_UINT, &request_name_result,
G_TYPE_INVALID)) {
g_warning ("Failed to acquire org.freedesktop.PolicyKit: %s", error->message);
g_error_free (error);
goto out;
}
manager = polkit_manager_new (bus, bus_proxy);
g_debug ("service running");
g_main_loop_run (mainloop);
ret = 0;
out:
return ret;
}
|
