tftpd(8) on FreeBSD
The text bf0506c9e7fe, as FreeBSD 11.1-RELEASE shipped it.
Internet Trivial File Transfer Protocol server
Flags it lists
-
-C -
-F -
-U -
-W -
-c -
-d -
-l -
-n -
-o -
-s -
-u -
-w