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
100 lines
2.9 KiB
C
100 lines
2.9 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 Red Hat, Inc.
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*/
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/*
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* The example shows how to list connections. Contrast this example with
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* list-connections-gdbus.c, which is a bit lower level and talks directly to NM
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* using GDBus.
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*
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* Compile with:
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* gcc -Wall list-connections-libnm.c -o list-connections-libnm `pkg-config --cflags --libs libnm`
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*/
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#include <glib.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <NetworkManager.h>
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/* Print details of connection */
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static void
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show_connection (NMConnection *connection)
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{
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NMSettingConnection *s_con;
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guint64 timestamp;
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char *timestamp_str;
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char timestamp_real_str[64];
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const char *val1, *val2, *val3, *val4, *val5;
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s_con = nm_connection_get_setting_connection (connection);
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if (s_con) {
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/* Get various info from NMSettingConnection and show it */
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timestamp = nm_setting_connection_get_timestamp (s_con);
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timestamp_str = g_strdup_printf ("%" G_GUINT64_FORMAT, timestamp);
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strftime (timestamp_real_str, sizeof (timestamp_real_str), "%c", localtime ((time_t *) ×tamp));
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val1 = nm_setting_connection_get_id (s_con);
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val2 = nm_setting_connection_get_uuid (s_con);
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val3 = nm_setting_connection_get_connection_type (s_con);
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val4 = nm_connection_get_path (connection);
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val5 = timestamp ? timestamp_real_str : "never";
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printf ("%-25s | %s | %-15s | %-43s | %s\n", val1, val2, val3, val4, val5);
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g_free (timestamp_str);
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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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NMClient *client;
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GError *error = NULL;
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const GPtrArray *connections;
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int i;
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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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if (!(client = nm_client_new (NULL, &error))) {
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g_message ("Error: Could not connect to NetworkManager: %s.", error->message);
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g_error_free (error);
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return EXIT_FAILURE;
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}
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if (!nm_client_get_nm_running (client)) {
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g_message ("Error: Can't obtain connections: NetworkManager is not running.");
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return EXIT_FAILURE;
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}
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/* Now the connections can be listed. */
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connections = nm_client_get_connections (client);
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printf ("Connections:\n===================\n");
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for (i = 0; i < connections->len; i++)
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show_connection (connections->pdata[i]);
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g_object_unref (client);
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return EXIT_SUCCESS;
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}
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