- fix uninitialized variable

git-svn-id: https://gnunet.org/svn/gnunet@32877 140774ce-b5e7-0310-ab8b-a85725594a96
-allow users direct core access

git-svn-id: https://gnunet.org/svn/gnunet@32878 140774ce-b5e7-0310-ab8b-a85725594a96