getttyent(3) on FreeBSD
The text 0c4ab1e67c95, as FreeBSD 2.2.9-RELEASE, FreeBSD 2.2.8-RELEASE, FreeBSD 2.2.7-RELEASE, FreeBSD 2.2.6-RELEASE, FreeBSD 2.2.5-RELEASE, FreeBSD 2.2.2-RELEASE shipped it.
get ttys file entry isdialuptty, isnetworktty – determine tty type from ttys file entry