mirror of
https://gitlab.freedesktop.org/NetworkManager/NetworkManager.git
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142 lines
4 KiB
C
142 lines
4 KiB
C
/* -*- Mode: C; tab-width: 4; indent-tabs-mode: t; c-basic-offset: 4 -*- */
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/* NetworkManager -- Network link manager
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Copyright (C) 2008 Red Hat, Inc.
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*/
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#include <stdio.h>
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#include <unistd.h>
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#include <stdlib.h>
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#include <string.h>
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#include <glib.h>
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#include <dbus/dbus.h>
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#include <dbus/dbus-glib-lowlevel.h>
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#include <dbus/dbus-glib.h>
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#define NM_AVAHI_AUTOIPD_DBUS_SERVICE "org.freedesktop.nm_avahi_autoipd"
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#define NM_AVAHI_AUTOIPD_DBUS_IFACE "org.freedesktop.nm_avahi_autoipd"
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static DBusConnection *
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dbus_init (void)
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{
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DBusConnection * connection;
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DBusError error;
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int ret;
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dbus_connection_set_change_sigpipe (TRUE);
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dbus_error_init (&error);
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connection = dbus_bus_get (DBUS_BUS_SYSTEM, &error);
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if (dbus_error_is_set (&error)) {
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fprintf (stderr, "Error: could not get the system bus. Make sure "
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"the message bus daemon is running! Message: (%s) %s\n",
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error.name,
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error.message);
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goto error;
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}
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dbus_connection_set_exit_on_disconnect (connection, FALSE);
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dbus_error_init (&error);
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ret = dbus_bus_request_name (connection,
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NM_AVAHI_AUTOIPD_DBUS_SERVICE,
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DBUS_NAME_FLAG_DO_NOT_QUEUE,
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&error);
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if (dbus_error_is_set (&error)) {
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fprintf (stderr, "Error: Could not acquire the NM DHCP client service. "
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"Message: (%s) %s\n",
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error.name,
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error.message);
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goto error;
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}
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if (ret != DBUS_REQUEST_NAME_REPLY_PRIMARY_OWNER) {
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fprintf (stderr, "Error: Could not acquire the NM DHCP client service "
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"as it is already taken. Return: %d\n",
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ret);
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goto error;
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}
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return connection;
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error:
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if (dbus_error_is_set (&error))
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dbus_error_free (&error);
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if (connection)
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dbus_connection_unref (connection);
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return NULL;
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}
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int
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main (int argc, char *argv[])
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{
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DBusConnection *connection;
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DBusMessage *message;
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dbus_bool_t result;
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char *event, *iface, *address;
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g_type_init ();
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if (argc != 4) {
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fprintf (stderr, "Error: expected 3 arguments (event, interface, address).\n");
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exit (1);
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}
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event = argv[1];
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iface = argv[2];
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address = argv[3] ? argv[3] : "";
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if (!event || !iface || !strlen (event) || !strlen (iface)) {
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fprintf (stderr, "Error: unexpected arguments received from avahi-autoipd.\n");
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exit (1);
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}
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/* Get a connection to the system bus */
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connection = dbus_init ();
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if (connection == NULL)
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exit (1);
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message = dbus_message_new_signal ("/", NM_AVAHI_AUTOIPD_DBUS_IFACE, "Event");
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if (message == NULL) {
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fprintf (stderr, "Error: not enough memory to send autoip Event signal.\n");
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exit (1);
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}
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if (!dbus_message_append_args (message,
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DBUS_TYPE_STRING, &event,
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DBUS_TYPE_STRING, &iface,
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DBUS_TYPE_STRING, &address,
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DBUS_TYPE_INVALID)) {
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fprintf (stderr, "Error: failed to construct autoip Event signal.\n");
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exit (1);
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}
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/* queue the message */
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result = dbus_connection_send (connection, message, NULL);
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if (!result) {
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fprintf (stderr, "Error: could not send send autoip Event signal.\n");
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exit (1);
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}
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dbus_message_unref (message);
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/* Send out the message */
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dbus_connection_flush (connection);
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return 0;
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}
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