Bug 446224 -  xdmcp broken in gdm

"It seems gdm_manager_constructor is being called before manager->priv->xdmcp_enabled is
configured, so manager->priv->xdmcp_factory is never set. I am attaching an
illustrative patch which allows XDMCP to start listening."

-- Patch by Michael Young

https://bugzilla.redhat.com/show_bug.cgi?id=446224
https://bugzilla.redhat.com/attachment.cgi?id=305955
https://bugzilla.redhat.com/attachment.cgi?id=305245

diff -Nurp gdm-2.22.0.orig/daemon/gdm-display.c gdm-2.22.0/daemon/gdm-display.c
--- gdm-2.22.0.orig/daemon/gdm-display.c	2008-04-18 05:29:28.000000000 +0200
+++ gdm-2.22.0/daemon/gdm-display.c	2008-09-23 19:29:23.000000000 +0200
@@ -465,7 +465,7 @@ gdm_display_real_manage (GdmDisplay *dis
 
         g_assert (display->priv->slave_proxy == NULL);
 
-        if (!gdm_display_create_authority (display)) {
+        if (display->priv->access_file == NULL && !gdm_display_create_authority (display)) {
                 g_warning ("Unable to set up access control for display %d",
                            display->priv->x11_display_number);
                 return FALSE;
diff -Nurp gdm-2.22.0.orig/daemon/gdm-manager.c gdm-2.22.0/daemon/gdm-manager.c
--- gdm-2.22.0.orig/daemon/gdm-manager.c	2008-04-18 05:29:28.000000000 +0200
+++ gdm-2.22.0/daemon/gdm-manager.c	2008-09-23 19:29:42.000000000 +0200
@@ -323,9 +323,9 @@ gdm_manager_constructor (GType          
 
         manager->priv->local_factory = gdm_local_display_factory_new (manager->priv->display_store);
 
-        if (manager->priv->xdmcp_enabled) {
+/*        if (manager->priv->xdmcp_enabled) { */
                 manager->priv->xdmcp_factory = gdm_xdmcp_display_factory_new (manager->priv->display_store);
-        }
+/*        } */
 
         return G_OBJECT (manager);
 }
diff -Nurp gdm-2.22.0.orig/daemon/gdm-xdmcp-display-factory.c gdm-2.22.0/daemon/gdm-xdmcp-display-factory.c
--- gdm-2.22.0.orig/daemon/gdm-xdmcp-display-factory.c	2008-04-18 05:29:28.000000000 +0200
+++ gdm-2.22.0/daemon/gdm-xdmcp-display-factory.c	2008-09-23 19:29:23.000000000 +0200
@@ -2274,6 +2274,8 @@ gdm_xdmcp_handle_request (GdmXdmcpDispla
                                 gsize   cookie_size;
                                 char   *name;
 
+				gdm_display_create_authority (display);
+
                                 gdm_display_get_x11_cookie (display, &cookie,
                                                             &cookie_size, NULL);