switch params.h with types.h and include time.h in timedated.c
[systembsd.git] / src / interfaces / timedated / timedated.c
index 3f016cd43c1facdc75ae7d30a8d4446c33451327..87b5392fac8e619423c33b7df64ee5b596bafcee 100644 (file)
 
 #include <unistd.h>
 #include <limits.h>
+#include <signal.h>
 
-#include <sys/param.h>
+#include <sys/types.h>
+#include <time.h>
 #include <string.h>
 
 #include <glib/gprintf.h>
 #include <glib-unix.h>
+#include <polkit/polkit.h>
 
 #include "timedated-gen.h"
+#include "timedated.h"
+
+#include "../../util.h"
 
 GPtrArray *timedated_freeable;
 Timedate1 *timedated_interf;
 
-/* --- begin method/property/signal code --- */
+GMainLoop *timedated_loop;
 
-/*static gboolean
-on_handle_set_hostname(Timedate1 *hn1_passed_interf,
-                       GDBusMethodInvocation *invoc,
-                       const gchar *greet,
-                       gpointer data) {
-    return FALSE;
-}*/
+guint bus_descriptor;
+gboolean dbus_interface_exported; /* reliable because of gdbus operational guarantees */
 
-/*const gchar *
-our_get_hostname() {
+/* --- begin method/property/dbus signal code --- */
 
-       gchar *hostname_buf, *ret;
-       size_t hostname_divider;
+static gboolean
+on_handle_set_time(Timedate1 *hn1_passed_interf,
+                   GDBusMethodInvocation *invoc,
+                   const gchar *greet,
+                   gpointer data) {
+    return FALSE;
+}
 
-       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);
+static gboolean
+on_handle_set_timezone(Timedate1 *hn1_passed_interf,
+                   GDBusMethodInvocation *invoc,
+                   const gchar *greet,
+                   gpointer data) {
+    return FALSE;
+}
 
-       if(gethostname(hostname_buf, MAXHOSTNAMELEN))
-               return "";
+static gboolean
+on_handle_set_local_rtc(Timedate1 *hn1_passed_interf,
+                        GDBusMethodInvocation *invoc,
+                        const gchar *greet,
+                        gpointer data) {
+    return FALSE;
+}
 
-       hostname_divider = strcspn(hostname_buf, ".");
+static gboolean
+on_handle_set_ntp(Timedate1 *hn1_passed_interf,
+                  GDBusMethodInvocation *invoc,
+                  const gchar *greet,
+                  gpointer data) {
+    return FALSE;
+}
 
-       return strncpy(ret, hostname_buf, hostname_divider);
-}*/
+const gchar *
+our_get_timezone() {
 
-/* --- end method/property/signal code, begin bus/name handlers --- */
+    return "";
+}
 
-static void timedated_on_bus_acquired(GDBusConnection *conn,
-                                      const gchar *name,
-                                      gpointer user_data) {
+gboolean
+our_get_local_rtc() { 
 
-    g_print("got bus, name: %s\n", name);   
+    gboolean ret = FALSE;
 
+    return ret;
 }
 
-static void timedated_on_name_acquired(GDBusConnection *conn,
-                                          const gchar *name,
-                                       gpointer user_data) {
+gboolean
+our_get_can_ntp() {
+    const gboolean ret = FALSE;
 
-    g_print("got '%s' on system bus\n", name);
+    return ret;
+}
 
-    timedated_interf = timedate1_skeleton_new();
+gboolean
+our_get_ntp() {
+    const gboolean ret = FALSE;
 
-    /* attach function pointers to generated struct's method handlers
-    g_signal_connect(timedated_interf, "handle-set-hostname", G_CALLBACK(on_handle_set_hostname), NULL);*/
+    return ret;
+}
 
-    /* set our properties before export
-    timedate1_set_hostname(timedated_interf, our_get_hostname()); */
+gboolean
+our_get_ntpsynchronized() {
  
+    const gboolean ret = FALSE;
+
+    return ret;
+}
+
+guint64
+our_get_time_usec() {
+
+    guint64 ret = 0;
+
+    return ret;
+}
+
+guint64
+our_get_rtc_time_usec() {
+
+    guint64 ret = 0;
+
+    return ret;
+}
+
+/* --- 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-time",     G_CALLBACK(on_handle_set_time),     NULL);
+    g_signal_connect(timedated_interf, "handle-set-timezone", G_CALLBACK(on_handle_set_timezone), NULL);
+    g_signal_connect(timedated_interf, "handle-set-local-rtc", G_CALLBACK(on_handle_set_local_rtc), NULL);
+    g_signal_connect(timedated_interf, "handle-set-ntp",      G_CALLBACK(on_handle_set_ntp),      NULL);
+    /* set our properties before export */
+    timedate1_set_timezone(timedated_interf, our_get_timezone());
+    timedate1_set_local_rtc(timedated_interf, our_get_local_rtc());
+    timedate1_set_can_ntp(timedated_interf, our_get_can_ntp());
+    timedate1_set_ntp(timedated_interf, our_get_ntp());
+    timedate1_set_ntpsynchronized(timedated_interf, our_get_ntpsynchronized());
+    timedate1_set_time_usec(timedated_interf, our_get_time_usec());
+    timedate1_set_rtctime_usec(timedated_interf, our_get_rtc_time_usec());
+    
     if(!g_dbus_interface_skeleton_export(G_DBUS_INTERFACE_SKELETON(timedated_interf),
                                          conn,
                                          "/org/freedesktop/timedate1",
                                          NULL)) {
 
-        g_printf("Failed to export Timedate1's interface!");
-    }
+        g_printf("failed to export %s's interface!\n", name);
+        timedated_mem_clean();
 
-}
+    } else {
 
-/* --- end bus/name handlers, begin misc functions --- */
+        dbus_interface_exported = TRUE;
+        g_printf("exported %s's interface on the system bus...\n", name);
+    }
+}
 
-/* free()'s */
-void timedated_mem_clean() {
+static void timedated_on_name_acquired(GDBusConnection *conn,
+                                       const gchar *name,
+                                       gpointer user_data) {
 
-    g_ptr_array_foreach(timedated_freeable, (GFunc) g_free, NULL);
-       g_ptr_array_free(timedated_freeable, TRUE);
+   g_printf("success!\n"); 
 }
 
 static void timedated_on_name_lost(GDBusConnection *conn,
                                    const gchar *name,
                                    gpointer user_data) {
 
-    g_print("lost name %s, exiting...", name);
+    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();
-    g_dbus_interface_skeleton_unexport(G_DBUS_INTERFACE_SKELETON(timedated_interf));
+    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() {
 
-       guint bus_descriptor;
-       GMainLoop *timedated_loop;
+    set_signal_handlers();
 
-       timedated_loop = g_main_loop_new(NULL, TRUE);
-       timedated_freeable = g_ptr_array_new();
+    timedated_loop = g_main_loop_new(NULL, TRUE);
+    timedated_freeable = g_ptr_array_new();
 
-        bus_descriptor = g_bus_own_name(G_BUS_TYPE_SYSTEM,
+     bus_descriptor = g_bus_own_name(G_BUS_TYPE_SYSTEM,
                                     "org.freedesktop.timedate1",
                                     G_BUS_NAME_OWNER_FLAGS_NONE,
                                     timedated_on_bus_acquired,
@@ -128,12 +237,15 @@ int main() {
                                     NULL,
                                     NULL);
 
-       g_main_loop_run(timedated_loop);
-       g_main_loop_unref(timedated_loop);
+    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);
 
-       g_bus_unown_name(bus_descriptor);
+    /* guaranteed unownable */
+    g_bus_unown_name(bus_descriptor);
 
-       timedated_mem_clean();
+    /* 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;
+    return 0;
 }