couriertls(1) on Linux
The text eb5ca8b1e999, as Debian 4.0 (Etch) shipped it.
Courier TLS/SSL protocol wrapper
Flags it lists
-
-host -
-localfd -
-port -
-printx509 -
-protocol -
-remotefd -
-server -
-statusfd -
-tcpd -
-verify