tftpd(8) on OpenBSD
The text c64af0396b12, as OpenBSD 7.2, OpenBSD 7.1, OpenBSD 7.0, OpenBSD 6.9, OpenBSD 6.8, OpenBSD 6.7, OpenBSD 6.6, OpenBSD 6.5 shipped it.
Trivial File Transfer Protocol daemon
Flags it lists
-
-4 -
-6 -
-c -
-d -
-i -
-l -
-p -
-r -
-v