843ea77e93
On modern distributions, ld runs with the '--as-needed' option enabled by default, meaning library dependencies must come after files that require them. Also, this allows indirect linking so the build commands can be simplified. The alternative is to add the '-Wl,--no-as-needed' gcc option or use the top-level Makefile. Tested on: * Ubuntu 16.04.3 with gcc Ubuntu 5.4.1-8ubuntu1 * Fedora 24 with gcc Red Hat 6.1.1-3 Signed-off-by: Lucas Magasweran <lucas.magasweran@ieee.org> https://mail.gnome.org/archives/networkmanager-list/2017-September/msg00022.html https://mail.gnome.org/archives/networkmanager-list/2017-September/msg00023.html https://mail.gnome.org/archives/networkmanager-list/2017-September/msg00025.html
90 lines
2.7 KiB
C
90 lines
2.7 KiB
C
/* -*- Mode: C; tab-width: 4; indent-tabs-mode: t; c-basic-offset: 4 -*- */
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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 2011, 2014 Red Hat, Inc.
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*/
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/*
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* The example shows how to list connections from the System Settings service
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* using direct D-Bus calls. The example uses GDBus, plus a few defines from
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* the NetworkManager headers. Contrast list-connections-libnm, which is higher
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* level because it uses libnm.
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*
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* Compile with:
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* gcc -Wall list-connections-gdbus.c -o list-connections-gdbus `pkg-config --cflags --libs libnm`
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*/
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#include <gio/gio.h>
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#include <nm-dbus-interface.h>
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static void
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list_connections (GDBusProxy *proxy)
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{
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int i;
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GError *error = NULL;
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GVariant *ret;
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char **paths;
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/* Call ListConnections D-Bus method */
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ret = g_dbus_proxy_call_sync (proxy,
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"ListConnections",
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NULL,
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G_DBUS_CALL_FLAGS_NONE, -1,
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NULL, &error);
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if (!ret) {
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g_dbus_error_strip_remote_error (error);
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g_print ("ListConnections failed: %s\n", error->message);
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g_error_free (error);
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return;
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}
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g_variant_get (ret, "(^ao)", &paths);
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g_variant_unref (ret);
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for (i = 0; paths[i]; i++)
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g_print ("%s\n", paths[i]);
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g_strfreev (paths);
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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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GDBusProxy *proxy;
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#if !GLIB_CHECK_VERSION (2, 35, 0)
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/* Initialize GType system */
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g_type_init ();
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#endif
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/* Create a D-Bus proxy; NM_DBUS_* defined in nm-dbus-interface.h */
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proxy = g_dbus_proxy_new_for_bus_sync (G_BUS_TYPE_SYSTEM,
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G_DBUS_PROXY_FLAGS_NONE,
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NULL,
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NM_DBUS_SERVICE,
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NM_DBUS_PATH_SETTINGS,
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NM_DBUS_INTERFACE_SETTINGS,
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NULL, NULL);
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g_assert (proxy != NULL);
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/* List connections of system settings service */
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list_connections (proxy);
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g_object_unref (proxy);
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return 0;
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}
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