+const gchar *
+our_get_hostname() {
+
+ gchar *hostname_buf;
+ hostname_buf = (gchar *)g_malloc0(MAXHOSTNAMELEN);
+
+ if(gethostname(hostname_buf, MAXHOSTNAMELEN))
+ return "localhost.home.network"; /* TODO bomb out here probably */
+
+ else if(!g_strcmp0(HOSTNAME, hostname_buf)) {
+
+ g_free(hostname_buf);
+ return HOSTNAME;
+ }
+
+ g_ptr_array_add(hostnamed_freeable, hostname_buf);
+ HOSTNAME = hostname_buf;
+ hostname1_set_hostname(hostnamed_interf, HOSTNAME);
+
+ return HOSTNAME;
+}
+
+const gchar *
+our_get_static_hostname() {
+
+ if(STATIC_HOSTNAME && g_strcmp0(STATIC_HOSTNAME, ""))
+ return STATIC_HOSTNAME;
+ else if(HOSTNAME)
+ return HOSTNAME;
+
+ return "localhost.home.network";
+}
+
+const gchar *
+our_get_pretty_hostname() {
+
+ if(PRETTY_HOSTNAME)
+ return PRETTY_HOSTNAME;
+
+ return "";
+}
+
+const gchar *
+our_get_chassis() {
+
+ if(CHASSIS)
+ return CHASSIS;
+
+ return "desktop"; /* this leads to the most generic beheivor in the unlikely case its returned */
+}
+
+const gchar *
+our_get_icon_name() {
+
+ if(ICON)
+ return ICON;
+
+ return "";
+}
+
+const gchar *
+our_get_kernel_name() {
+
+ if(KERN_NAME)
+ return KERN_NAME;
+
+ return "";
+}
+
+const gchar *
+our_get_kernel_version() {
+
+ if(KERN_VERS)
+ return KERN_VERS;
+
+ return "";
+}
+
+const gchar *
+our_get_kernel_release() {
+
+ if(KERN_RELEASE)
+ return KERN_RELEASE;
+
+ return "";
+}
+
+const gchar *
+our_get_os_cpename() {
+
+ return "ONEDAY";
+}
+
+const gchar *
+our_get_os_pretty_name() {
+
+ return "OpenBSD";
+}
+
+/* --- end method/property/dbus signal code, begin bus/name handlers --- */
+
+static void hostnamed_on_bus_acquired(GDBusConnection *conn,
+ const gchar *name,
+ gpointer user_data) {
+
+ g_printf("got bus/name, exporting %s's interface...\n", name);
+
+ hostnamed_interf = hostname1_skeleton_new();
+
+ /* attach function pointers to generated struct's method handlers */
+ g_signal_connect(hostnamed_interf, "handle-set-hostname", G_CALLBACK(on_handle_set_hostname), NULL);
+ g_signal_connect(hostnamed_interf, "handle-set-static-hostname", G_CALLBACK(on_handle_set_static_hostname), NULL);
+ g_signal_connect(hostnamed_interf, "handle-set-pretty-hostname", G_CALLBACK(on_handle_set_pretty_hostname), NULL);
+ g_signal_connect(hostnamed_interf, "handle-set-chassis", G_CALLBACK(on_handle_set_chassis), NULL);
+ g_signal_connect(hostnamed_interf, "handle-set-icon-name", G_CALLBACK(on_handle_set_icon_name), NULL);
+
+ /* set our properties before export */
+ hostname1_set_hostname(hostnamed_interf, our_get_hostname());
+ hostname1_set_static_hostname(hostnamed_interf, our_get_static_hostname());
+ hostname1_set_pretty_hostname(hostnamed_interf, our_get_pretty_hostname());
+ hostname1_set_chassis(hostnamed_interf, our_get_chassis());
+ hostname1_set_icon_name(hostnamed_interf, our_get_icon_name());
+ hostname1_set_kernel_name(hostnamed_interf, our_get_kernel_name());
+ hostname1_set_kernel_version(hostnamed_interf, our_get_kernel_version());
+ hostname1_set_kernel_release(hostnamed_interf, our_get_kernel_release());
+ hostname1_set_operating_system_cpename(hostnamed_interf, our_get_os_cpename());
+ hostname1_set_operating_system_pretty_name(hostnamed_interf, our_get_os_pretty_name());
+
+ if(!g_dbus_interface_skeleton_export(G_DBUS_INTERFACE_SKELETON(hostnamed_interf),
+ conn,
+ "/org/freedesktop/hostname1",
+ NULL)) {
+
+ g_printf("failed to export %s's interface!\n", name); /* unusual edge case, TODO check errno */
+ hostnamed_mem_clean();
+
+ } else {
+
+ dbus_interface_exported = TRUE;
+ g_printf("exported %s's interface on the system bus...\n", name);
+ }
+}
+
+static void hostnamed_on_name_acquired(GDBusConnection *conn,
+ const gchar *name,
+ gpointer user_data) {
+
+ g_printf("success!\n");
+}
+
+static void hostnamed_on_name_lost(GDBusConnection *conn,
+ const gchar *name,
+ gpointer user_data) {
+
+ if(!conn) {
+
+ g_printf("failed to connect to the system bus while trying to acquire name '%s': either dbus-daemon isn't running or we don't have permission to push names and/or their interfaces to it.\n", name);
+ hostnamed_mem_clean();
+ }
+
+ g_printf("lost name %s, exiting...\n", name);
+
+ hostnamed_mem_clean();
+}
+
+/* --- end bus/name handlers, begin misc unix functions --- */
+
+/* safe call to clean and then exit
+ * this stops our GMainLoop safely before letting main() return */
+void hostnamed_mem_clean() {
+
+ g_printf("exiting...\n");
+
+ if(dbus_interface_exported)
+ g_dbus_interface_skeleton_unexport(G_DBUS_INTERFACE_SKELETON(hostnamed_interf));
+
+ if(g_main_loop_is_running(hostnamed_loop))
+ g_main_loop_quit(hostnamed_loop);
+
+}
+
+/* wrapper for glib's unix signal handling; called only once if terminatating signal is raised against us */
+gboolean unix_sig_terminate_handler(gpointer data) {
+
+ g_printf("caught SIGINT/HUP/TERM, exiting\n");
+
+ hostnamed_mem_clean();
+ return G_SOURCE_REMOVE;
+}
+
+void set_signal_handlers() {
+
+ /* we don't care about its descriptor, we never need to unregister these */
+ g_unix_signal_add(SIGINT, unix_sig_terminate_handler, NULL);
+ g_unix_signal_add(SIGHUP, unix_sig_terminate_handler, NULL);
+ g_unix_signal_add(SIGTERM, unix_sig_terminate_handler, NULL);
+
+ /* TODO: the "only once" guarantee only counts towards specific signals.
+ * make sure calling a SIGINT and SIGHUP doesn't cause term_handler()
+ * to be called twice */
+}
+
+int main() {
+
+ hostnamed_freeable = g_ptr_array_new();
+
+ /* TODO: check for valid, writable config at init. if no, complain to `make install` */
+
+ CHASSIS = ICON = OS_CPENAME = 0;
+ KERN_NAME = KERN_RELEASE = KERN_VERS = 0;
+ HOSTNAME = STATIC_HOSTNAME = PRETTY_HOSTNAME = NULL;
+
+ set_signal_handlers();
+
+ if(!determine_chassis_and_icon() || !set_uname_properties() || !set_names())
+ return 1;
+
+ hostnamed_loop = g_main_loop_new(NULL, TRUE);
+
+ bus_descriptor = g_bus_own_name(G_BUS_TYPE_SYSTEM,
+ "org.freedesktop.hostname1",
+ G_BUS_NAME_OWNER_FLAGS_NONE,
+ hostnamed_on_bus_acquired,
+ hostnamed_on_name_acquired,
+ hostnamed_on_name_lost,
+ NULL,
+ NULL);
+
+ g_main_loop_run(hostnamed_loop);
+ /* runs until single g_main_loop_quit() call is raised inside <interface>_mem_clean() */
+ g_main_loop_unref(hostnamed_loop);
+
+ /* guaranteed unownable */
+ g_bus_unown_name(bus_descriptor);
+
+ /* at this point no operations can occur with our data, it is safe to free it + its container */
+ g_ptr_array_free(hostnamed_freeable, TRUE);
+
+ return 0;
+}
+
+gboolean set_names() {
+
+ /* (1) set up */
+ gchar *hostname_buf, *static_hostname_buf, *pretty_hostname_buf;
+ GKeyFile *config;
+ size_t hostname_divider;
+
+ hostname_buf = (gchar*) g_malloc0(MAXHOSTNAMELEN);
+ static_hostname_buf = (gchar*) g_malloc0(4096);
+ pretty_hostname_buf = (gchar*) g_malloc0(4096);
+
+ config = g_key_file_new();
+
+ g_ptr_array_add(hostnamed_freeable, hostname_buf);
+ g_ptr_array_add(hostnamed_freeable, static_hostname_buf);
+ g_ptr_array_add(hostnamed_freeable, pretty_hostname_buf);
+
+ /* (2) set HOSTNAME */
+ if(gethostname(hostname_buf, MAXHOSTNAMELEN) || !g_strcmp0(hostname_buf, ""))
+ HOSTNAME = "localhost";
+
+ HOSTNAME = hostname_buf;
+
+ /* this bit gets you the /etc/myname style hostname
+ hostname_divider = strcspn(hostname_buf, ".");
+ strncpy(ret, hostname_buf, hostname_divider); */
+
+ /* (3) set PRETTY_HOSTNAME */
+ if(g_key_file_load_from_file(config, "/etc/systemd_compat.conf", G_KEY_FILE_NONE, NULL)
+ && (pretty_hostname_buf = g_key_file_get_value(config, "hostnamed", "PrettyHostname", NULL)))
+ PRETTY_HOSTNAME = pretty_hostname_buf;
+ else
+ PRETTY_HOSTNAME = "";
+
+ if(config)
+ g_key_file_unref(config);
+
+ /* (4) set STATIC_HOSTNAME */
+ if(!g_strcmp0(PRETTY_HOSTNAME, ""))
+ STATIC_HOSTNAME = HOSTNAME;
+
+ else if((static_hostname_buf = g_hostname_to_ascii(PRETTY_HOSTNAME)))
+ STATIC_HOSTNAME = static_hostname_buf;
+
+ return (HOSTNAME && STATIC_HOSTNAME && PRETTY_HOSTNAME) ? TRUE : FALSE;
+
+}
+
+gboolean set_uname_properties() {
+
+ struct utsname un;
+
+ if(-1 == uname(&un))
+ return FALSE;
+
+ KERN_NAME = (gchar*)g_malloc0(sizeof(un.sysname));
+ g_ptr_array_add(hostnamed_freeable, KERN_NAME);
+ g_strlcpy(KERN_NAME, un.sysname, sizeof(un.sysname));
+
+ KERN_RELEASE = (gchar*)g_malloc0(sizeof(un.release));
+ g_ptr_array_add(hostnamed_freeable, KERN_RELEASE);
+ g_strlcpy(KERN_RELEASE, un.release, sizeof(un.release));
+
+ KERN_VERS = (gchar*)g_malloc0(sizeof(un.version));
+ g_ptr_array_add(hostnamed_freeable, KERN_VERS);
+ g_strlcpy(KERN_VERS, un.version, sizeof(un.version));
+
+ return TRUE;