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/* -*- Mode: C; tab-width: 4; indent-tabs-mode: t; c-basic-offset: 4 -*- */
/* NetworkManager -- Network link manager
*
* 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.
*
* Copyright (C) 2008 Red Hat, Inc.
*/
#include <stdio.h>
#include <unistd.h>
#include <stdlib.h>
#include <string.h>
#include <glib.h>
#include <dbus/dbus.h>
#include <dbus/dbus-glib-lowlevel.h>
#include <dbus/dbus-glib.h>
#define NM_AVAHI_AUTOIPD_DBUS_SERVICE "org.freedesktop.nm_avahi_autoipd"
#define NM_AVAHI_AUTOIPD_DBUS_IFACE "org.freedesktop.nm_avahi_autoipd"
static DBusConnection *
dbus_init (void)
{
DBusConnection * connection;
DBusError error;
int ret;
dbus_connection_set_change_sigpipe (TRUE);
dbus_error_init (&error);
connection = dbus_bus_get (DBUS_BUS_SYSTEM, &error);
if (dbus_error_is_set (&error)) {
fprintf (stderr, "Error: could not get the system bus. Make sure "
"the message bus daemon is running! Message: (%s) %s\n",
error.name,
error.message);
goto error;
}
dbus_connection_set_exit_on_disconnect (connection, FALSE);
dbus_error_init (&error);
ret = dbus_bus_request_name (connection,
NM_AVAHI_AUTOIPD_DBUS_SERVICE,
DBUS_NAME_FLAG_DO_NOT_QUEUE,
&error);
if (dbus_error_is_set (&error)) {
fprintf (stderr, "Error: Could not acquire the NM DHCP client service. "
"Message: (%s) %s\n",
error.name,
error.message);
goto error;
}
if (ret != DBUS_REQUEST_NAME_REPLY_PRIMARY_OWNER) {
fprintf (stderr, "Error: Could not acquire the NM DHCP client service "
"as it is already taken. Return: %d\n",
ret);
goto error;
}
return connection;
error:
if (dbus_error_is_set (&error))
dbus_error_free (&error);
if (connection)
dbus_connection_unref (connection);
return NULL;
}
int
main (int argc, char *argv[])
{
DBusConnection *connection;
DBusMessage *message;
dbus_bool_t result;
char *event, *iface, *address;
g_type_init ();
if (argc != 4) {
fprintf (stderr, "Error: expected 3 arguments (event, interface, address).\n");
exit (1);
}
event = argv[1];
iface = argv[2];
address = argv[3] ? argv[3] : "";
if (!event || !iface || !strlen (event) || !strlen (iface)) {
fprintf (stderr, "Error: unexpected arguments received from avahi-autoipd.\n");
exit (1);
}
/* Get a connection to the system bus */
connection = dbus_init ();
if (connection == NULL)
exit (1);
message = dbus_message_new_signal ("/", NM_AVAHI_AUTOIPD_DBUS_IFACE, "Event");
if (message == NULL) {
fprintf (stderr, "Error: not enough memory to send autoip Event signal.\n");
exit (1);
}
if (!dbus_message_append_args (message,
DBUS_TYPE_STRING, &event,
DBUS_TYPE_STRING, &iface,
DBUS_TYPE_STRING, &address,
DBUS_TYPE_INVALID)) {
fprintf (stderr, "Error: failed to construct autoip Event signal.\n");
exit (1);
}
/* queue the message */
result = dbus_connection_send (connection, message, NULL);
if (!result) {
fprintf (stderr, "Error: could not send send autoip Event signal.\n");
exit (1);
}
dbus_message_unref (message);
/* Send out the message */
dbus_connection_flush (connection);
return 0;
}
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