977ea352a0
These SPDX license identifiers are deprecated ([1]). Update them. [1] https://spdx.org/licenses/ sed \ -e '1 s%^/\* SPDX-License-Identifier: \(GPL-2.0\|LGPL-2.1\)+ \*/$%/* SPDX-License-Identifier: \1-or-later */%' \ -e '1,2 s%^\(--\|#\|//\) SPDX-License-Identifier: \(GPL-2.0\|LGPL-2.1\)+$%\1 SPDX-License-Identifier: \2-or-later%' \ -i \ $(git grep -l SPDX-License-Identifier -- \ ':(exclude)shared/c-*/' \ ':(exclude)shared/n-*/' \ ':(exclude)shared/systemd/src' \ ':(exclude)src/systemd/src')
112 lines
3.4 KiB
C
112 lines
3.4 KiB
C
/* SPDX-License-Identifier: GPL-2.0-or-later */
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/*
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* Copyright (C) 2012 Red Hat, Inc.
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*/
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/*
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* This example monitors NM state via D-Bus "StateChanged" signal on
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* "org.freedesktop.NetworkManager" object.
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* It uses GDBus and the libnm headers.
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* You don't need to have the NetworkManager devel packages installed. You can just
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* grab nm-dbus-interface.h and put it in the path.
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*
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* Standalone compilation:
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* gcc -Wall monitor-nm-state-gdbus.c -o monitor-nm-state-gdbus `pkg-config --cflags --libs libnm`
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*/
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#include <gio/gio.h>
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#include <string.h>
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#include <nm-dbus-interface.h>
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static const char *
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nm_state_to_string(NMState state)
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{
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switch (state) {
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case NM_STATE_ASLEEP:
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return "asleep";
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case NM_STATE_CONNECTING:
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return "connecting";
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case NM_STATE_CONNECTED_LOCAL:
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return "connected (local only)";
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case NM_STATE_CONNECTED_SITE:
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return "connected (site only)";
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case NM_STATE_CONNECTED_GLOBAL:
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return "connected";
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case NM_STATE_DISCONNECTING:
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return "disconnecting";
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case NM_STATE_DISCONNECTED:
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return "disconnected";
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case NM_STATE_UNKNOWN:
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default:
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return "unknown";
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}
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}
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static void
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on_signal(GDBusProxy *proxy,
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char * sender_name,
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char * signal_name,
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GVariant * parameters,
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gpointer user_data)
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{
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guint32 new_state;
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/* Print all signals */
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//char *parameters_str;
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//parameters_str = g_variant_print (parameters, TRUE);
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//g_print (" *** Received Signal: %s: %s\n", signal_name, parameters_str);
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//g_free (parameters_str);
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/* We are only interested in "StateChanged" signal */
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if (strcmp(signal_name, "StateChanged") == 0) {
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GVariant *tmp = g_variant_get_child_value(parameters, 0);
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new_state = g_variant_get_uint32(tmp);
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g_variant_unref(tmp);
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g_print("NetworkManager state is: (%d) %s\n",
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new_state,
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nm_state_to_string((NMState) new_state));
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}
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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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GMainLoop * loop;
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GError * error = NULL;
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GDBusProxyFlags flags;
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GDBusProxy * proxy;
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/* Monitor 'StateChanged' signal on 'org.freedesktop.NetworkManager' interface */
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g_print("Monitor NetworkManager's state\n");
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g_print("==============================\n");
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flags = G_DBUS_PROXY_FLAGS_DO_NOT_LOAD_PROPERTIES | G_DBUS_PROXY_FLAGS_DO_NOT_AUTO_START;
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proxy = g_dbus_proxy_new_for_bus_sync(G_BUS_TYPE_SYSTEM,
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flags,
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NULL, /* GDBusInterfaceInfo */
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"org.freedesktop.NetworkManager",
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"/org/freedesktop/NetworkManager",
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"org.freedesktop.NetworkManager",
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NULL, /* GCancellable */
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&error);
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if (proxy == NULL) {
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g_dbus_error_strip_remote_error(error);
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g_printerr("Error creating D-Bus proxy: %s\n", error->message);
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g_error_free(error);
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return -1;
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}
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/* Connect to g-signal to receive signals from proxy (remote object) */
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g_signal_connect(proxy, "g-signal", G_CALLBACK(on_signal), NULL);
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/* Run main loop */
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loop = g_main_loop_new(NULL, FALSE);
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g_main_loop_run(loop);
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g_object_unref(proxy);
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return 0;
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}
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