-fix use after free

git-svn-id: https://gnunet.org/svn/gnunet@34690 140774ce-b5e7-0310-ab8b-a85725594a96
-fix sec_name leak

git-svn-id: https://gnunet.org/svn/gnunet@34692 140774ce-b5e7-0310-ab8b-a85725594a96
-check NULL, check RV

git-svn-id: https://gnunet.org/svn/gnunet@34693 140774ce-b5e7-0310-ab8b-a85725594a96
-fix leak

git-svn-id: https://gnunet.org/svn/gnunet@34694 140774ce-b5e7-0310-ab8b-a85725594a96
-trying to fix transport service assertion in time.c:393: overflow on multiply

git-svn-id: https://gnunet.org/svn/gnunet@34695 140774ce-b5e7-0310-ab8b-a85725594a96