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/* -*- Mode: C; tab-width: 4; indent-tabs-mode: t; c-basic-offset: 4 -*- */
/*
* 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, 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) 2006 - 2008 Novell, Inc.
*
*/
/*
* nm-online.c - Are we online?
*
* Return values:
*
* 0 : already online or connection established within given timeout
* 1 : offline or not online within given timeout
* 2 : unspecified error
*
* Robert Love <rml@novell.com>
*/
#define PROGRESS_STEPS 15
#include <ctype.h>
#include <stdio.h>
#include <stdlib.h>
#include <getopt.h>
#include <glib.h>
#include <dbus/dbus.h>
#include <dbus/dbus-glib-lowlevel.h>
#include <dbus/dbus-glib.h>
#include "NetworkManager.h"
#include "nm-glib-compat.h"
typedef struct
{
int value;
double norm;
gboolean quiet;
} Timeout;
static GMainLoop *loop;
static DBusHandlerResult dbus_filter (DBusConnection *connection G_GNUC_UNUSED,
DBusMessage *message,
void *user_data G_GNUC_UNUSED)
{
NMState state;
if (!dbus_message_is_signal (message, NM_DBUS_INTERFACE, "StateChanged"))
return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
if (!dbus_message_get_args (message, NULL, DBUS_TYPE_UINT32, &state, DBUS_TYPE_INVALID))
return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
if (state == NM_STATE_CONNECTED)
g_main_loop_quit (loop);
return DBUS_HANDLER_RESULT_HANDLED;
}
static NMState check_online (DBusConnection *connection)
{
DBusMessage *message, *reply;
DBusError error;
dbus_uint32_t state;
message = dbus_message_new_method_call (NM_DBUS_SERVICE, NM_DBUS_PATH,
NM_DBUS_INTERFACE, "state");
if (!message)
exit (2);
dbus_error_init (&error);
reply = dbus_connection_send_with_reply_and_block (connection, message,
-1, &error);
dbus_message_unref (message);
if (!reply)
return NM_STATE_UNKNOWN;
if (!dbus_message_get_args (reply, NULL, DBUS_TYPE_UINT32, &state,
DBUS_TYPE_INVALID))
exit (2);
return state;
}
static gboolean handle_timeout (gpointer data)
{
int i = PROGRESS_STEPS;
Timeout *timeout = (Timeout *) data;
if (!timeout->quiet) {
g_print ("\rConnecting");
for (; i > 0; i--)
putchar ((timeout->value >= (i * timeout->norm)) ? ' ' : '.');
if (timeout->value)
g_print (" %4is", timeout->value);
fflush (stdout);
}
timeout->value--;
if (timeout->value < 0) {
if (!timeout->quiet)
g_print ("\n");
exit (1);
}
return TRUE;
}
int main (int argc, char *argv[])
{
DBusConnection *connection;
DBusError error;
NMState state;
gint t_secs = -1;
gboolean exit_no_nm = FALSE;
gboolean quiet = FALSE;
Timeout timeout;
GOptionContext *opt_ctx = NULL;
gboolean success;
GOptionEntry options[] = {
{"timeout", 't', 0, G_OPTION_ARG_INT, &t_secs, "Time to wait for a connection, in seconds (default is 30)", NULL},
{"exit", 'x', 0, G_OPTION_ARG_NONE, &exit_no_nm, "Exit immediately if NetworkManager is not running or connecting", NULL},
{"quiet", 'q', 0, G_OPTION_ARG_NONE, &quiet, "Don't print anything", NULL},
{NULL}
};
opt_ctx = g_option_context_new ("");
g_option_context_set_translation_domain (opt_ctx, "UTF-8");
g_option_context_set_ignore_unknown_options (opt_ctx, FALSE);
g_option_context_set_help_enabled (opt_ctx, TRUE);
g_option_context_add_main_entries (opt_ctx, options, NULL);
g_option_context_set_summary (opt_ctx,
"Waits for a successful connection in NetworkManager.");
success = g_option_context_parse (opt_ctx, &argc, &argv, NULL);
g_option_context_free (opt_ctx);
if (!success) {
g_warning ("Invalid option. Please use --help to see a list of valid options.");
return 2;
}
if (t_secs > -1)
timeout.value = t_secs;
else
timeout.value = 30;
if (timeout.value < 0 || timeout.value > 3600) {
g_warning ("Invalid option. Please use --help to see a list of valid options.");
return 2;
}
g_type_init ();
loop = g_main_loop_new (NULL, FALSE);
dbus_error_init (&error);
connection = dbus_bus_get (DBUS_BUS_SYSTEM, &error);
if (connection == NULL) {
dbus_error_free (&error);
return 2;
}
dbus_connection_setup_with_g_main (connection, NULL);
if (!dbus_connection_add_filter (connection, dbus_filter, NULL, NULL))
return 2;
dbus_bus_add_match (connection,
"type='signal',"
"interface='" NM_DBUS_INTERFACE "',"
"sender='" NM_DBUS_SERVICE "',"
"path='" NM_DBUS_PATH "'", &error);
if (dbus_error_is_set (&error)) {
dbus_error_free (&error);
return 2;
}
/* Check after we setup the filter to ensure that we cannot race. */
state = check_online (connection);
if (state == NM_STATE_CONNECTED)
return 0;
if (exit_no_nm && (state != NM_STATE_CONNECTING))
return 1;
if (timeout.value) {
timeout.norm = (double) timeout.value / (double) PROGRESS_STEPS;
g_timeout_add_seconds (1, handle_timeout, &timeout);
}
timeout.quiet = quiet;
g_main_loop_run (loop);
return 0;
}
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