[glib] gnetworkmonitornm: Check if network-manager is running

[Lars Uebernickel <larsu src gnome org>]

commit f7be461601ab51a9f29e1fd07692efb261d0104b
Author: Iain Lane <iain lane canonical com>
Date:   Mon Jan 12 10:03:18 2015 +0000

    gnetworkmonitornm: Check if network-manager is running
    
    We were asking for properties on NM's dbus interface, but if NM is not
    running then there won't be any. Check if the name has an owner before
    doing anything to it.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=741653

 gio/gnetworkmonitornm.c |   11 +++++++++++
 1 files changed, 11 insertions(+), 0 deletions(-)
---
diff --git a/gio/gnetworkmonitornm.c b/gio/gnetworkmonitornm.c
index 73e2ed6..d052716 100644
--- a/gio/gnetworkmonitornm.c
+++ b/gio/gnetworkmonitornm.c
@@ -244,6 +244,7 @@ g_network_monitor_nm_initable_init (GInitable     *initable,
   GNetworkMonitorNM *nm = G_NETWORK_MONITOR_NM (initable);
   GDBusProxy *proxy;
   GInitableIface *parent_iface;
+  gchar *name_owner = NULL;
 
   parent_iface = g_type_interface_peek_parent (G_NETWORK_MONITOR_NM_GET_INITABLE_IFACE (initable));
   if (!parent_iface->init (initable, cancellable, error))
@@ -260,6 +261,16 @@ g_network_monitor_nm_initable_init (GInitable     *initable,
   if (!proxy)
     return FALSE;
 
+  name_owner = g_dbus_proxy_get_name_owner (proxy);
+
+  if (!name_owner)
+    {
+      g_object_unref (proxy);
+      return FALSE;
+    }
+
+  g_free (name_owner);
+
   /* Verify it has the PrimaryConnection and Connectivity properties */
   if (!has_property (proxy, "Connectivity"))
     {