getttynam(3) on FreeBSD

The text 36c6959012f2, as FreeBSD 3.4-RELEASE, FreeBSD 3.3-RELEASE, FreeBSD 3.2-RELEASE, FreeBSD 3.1-RELEASE, FreeBSD 3.0-RELEASE shipped it.

get ttys file entry isdialuptty, isnettty – determine tty type from ttys file entry