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Hangs up the pseudo-tty if the TCP connection is lost. This
-h
mimics the situation in which a real serial port loses a
signal such as DCD. In the same manner as the serial port,
a SIGHUP signal will be sent to all processes that have the
slave pseudo-tty as their controlling tty. See the -w option.
Converts all carriage-returns read from the client process
-n
to carriage-return and line-feed. This is useful if using
ioland for printing and the print job is off the right
margin (i.e. 'stair stepping').
Push the STREAMS tty modules onto the slave
-m
pseudo-tty. This is useful for applications that expect to
modify tty parameters as if a hardware device was
attached. The modules pushed are the line discipline
(normally called ldterm ) and the hardware emulation (if
supported). This option requires that the pseudo-tty
architecture is based on the STREAMS I/O mechanism.
The recommended Unix variants for using this option
are those based on System V Release 3. Variants based
on System V Release 4 should first try the -a option.
Use the autopush facility to push STREAMS modules
-a
onto the slave pseudo-tty. This facility is supported on
Unix System V Release 4 variants.
Discard all data received from the peripheral. This is
-u
useful in cases where the peripheral is sending
unwanted data to the host, which is not being read by
the client and therefore may cause blockage problems
on the pseudo-tty.
Used with the -h and -p options. By default, on a
-w
hang-up, the daemon will open a new pseudo-tty before
it has reconnected to the Terminal Server port. This
option does the opposite and tries to re-establish the TCP
connection first.
Other Devices Setup
73
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