add polkit auth object, compile it in makefile, add header to interfaces

[systembsd.git] / src / interfaces / timedated / timedated.c

diff --git a/src/interfaces/timedated/timedated.c b/src/interfaces/timedated/timedated.c
index cf9b3f9a97db1cb4114d3eefdc18af3a3267f355..f76850c4f6fadd270307b4c0c15ffb96c0e5e4fe 100644 (file)
--- a/src/interfaces/timedated/timedated.c
+++ b/src/interfaces/timedated/timedated.c
@@ -14,3 +14,170 @@
  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  */
 
+#include <unistd.h>
+#include <limits.h>
+#include <signal.h>
+
+#include <sys/param.h>
+#include <string.h>
+
+#include <glib/gprintf.h>
+#include <glib-unix.h>
+#include <polkit/polkit.h>
+
+#include "timedated-gen.h"
+#include "timedated.h"
+
+#include "../../polkit-auth.h"
+
+GPtrArray *timedated_freeable;
+Timedate1 *timedated_interf;
+
+GMainLoop *timedated_loop;
+
+guint bus_descriptor;
+gboolean dbus_interface_exported; /* reliable because of gdbus operational guarantees */
+
+/* --- begin method/property/dbus signal code --- */
+
+/*static gboolean
+on_handle_set_hostname(Timedate1 *hn1_passed_interf,
+                       GDBusMethodInvocation *invoc,
+                       const gchar *greet,
+                       gpointer data) {
+    return FALSE;
+}*/
+
+/*const gchar *
+our_get_hostname() {
+
+    gchar *hostname_buf, *ret;
+    size_t hostname_divider;
+
+    hostname_buf = (gchar*) g_malloc0(MAXHOSTNAMELEN);
+    ret          = (gchar*) g_malloc0(MAXHOSTNAMELEN);
+    g_ptr_array_add(timedated_freeable, hostname_buf);
+    g_ptr_array_add(timedated_freeable, ret);
+
+    if(gethostname(hostname_buf, MAXHOSTNAMELEN))
+        return "";
+
+    hostname_divider = strcspn(hostname_buf, ".");
+
+    return strncpy(ret, hostname_buf, hostname_divider);
+}*/
+
+/* --- end method/property/dbus signal code, begin bus/name handlers --- */
+
+static void timedated_on_bus_acquired(GDBusConnection *conn,
+                                      const gchar *name,
+                                      gpointer user_data) {
+
+    g_printf("got bus/name, exporting %s's interface...\n", name);
+
+    timedated_interf = timedate1_skeleton_new();
+
+    /* attach function pointers to generated struct's method handlers
+    g_signal_connect(timedated_interf, "handle-set-hostname", G_CALLBACK(on_handle_set_hostname), NULL);*/
+
+    /* set our properties before export
+    timedate1_set_hostname(timedated_interf, our_get_hostname()); */
+ 
+    if(!g_dbus_interface_skeleton_export(G_DBUS_INTERFACE_SKELETON(timedated_interf),
+                                         conn,
+                                         "/org/freedesktop/timedate1",
+                                         NULL)) {
+
+        g_printf("failed to export %s's interface!\n", name);
+        timedated_mem_clean();
+
+    } else {
+
+        dbus_interface_exported = TRUE;
+        g_printf("exported %s's interface on the system bus...\n", name);
+    }
+}
+
+static void timedated_on_name_acquired(GDBusConnection *conn,
+                                       const gchar *name,
+                                       gpointer user_data) {
+
+   g_printf("success!\n"); 
+}
+
+static void timedated_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);
+        timedated_mem_clean();
+    }
+
+    g_print("lost name %s, exiting...\n", name);
+
+    timedated_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 timedated_mem_clean() {
+
+    g_printf("exiting...\n");
+
+    if(dbus_interface_exported)
+        g_dbus_interface_skeleton_unexport(G_DBUS_INTERFACE_SKELETON(timedated_interf));
+
+     if(g_main_loop_is_running(timedated_loop))
+        g_main_loop_quit(timedated_loop);
+
+}
+
+/* wrapper for glib's unix signal handling; called only once if terminating signal is raised against us */
+gboolean unix_sig_terminate_handler(gpointer data) {
+
+    g_printf("caught SIGINT/HUP/TERM, exiting\n");
+
+    timedated_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);
+}
+
+int main() {
+
+    set_signal_handlers();
+
+    timedated_loop = g_main_loop_new(NULL, TRUE);
+    timedated_freeable = g_ptr_array_new();
+
+     bus_descriptor = g_bus_own_name(G_BUS_TYPE_SYSTEM,
+                                    "org.freedesktop.timedate1",
+                                    G_BUS_NAME_OWNER_FLAGS_NONE,
+                                    timedated_on_bus_acquired,
+                                    timedated_on_name_acquired,
+                                    timedated_on_name_lost,
+                                    NULL,
+                                    NULL);
+
+    g_main_loop_run(timedated_loop);
+    /* runs until single g_main_loop_quit() call is raised inside <interface>_mem_clean() */
+    g_main_loop_unref(timedated_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(timedated_freeable, TRUE);
+
+    return 0;
+}