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NAME
sttydefs - maintain line settings and hunt sequences for TTY
ports
SYNOPSIS
/usr/sbin/sttydefs -a ttylabel [-b] [-n nextlabel] [-i
initial-flags] [-f final-flags]
/usr/sbin/sttydefs -l [ttylabel]
/usr/sbin/sttydefs -r ttylabel
DESCRIPTION
sttydefs is an administrative command that maintains the
line settings and hunt sequences for the system's TTY ports
by making entries in and deleting entries from the
/etc/ttydefs file. sttydefs with a -a or -r option may be
invoked only by a privileged user. sttydefs with -l may be
invoked by any user on the system. The options have the
following meanings:
-l If a ttylabel is specified, sttydefs will display
the record from /etc/ttydefs whose TTY label matches
the specified ttylabel. If no ttylabel is speci-
fied, sttydefs will display the entire contents of
/etc/ttydefs. sttydefs will verify that each entry
it displays is correct and that the entry's nextla-
bel field references an existing ttylabel.
-a ttylabel
Adds a record to the ttydefs file, using ttylabel as
its label. The following describes the effect of
the -b, -n, -i, or -f options when used in conjunc-
tion with the -a option:
-b Specifies that autobaud should be enabled. Autobaud
allows the system to set the line speed of a given
TTY port to the line speed of the device connected
to the port without the user's intervention.
-n nextlabel
Specifies the value to be used in the nextlabel
field in /etc/ttydefs. If this option is not speci-
fied, sttydefs will set nextlabel equal to ttylabel.
-i initial-flags
Specifies the value to be used in the initial-flags
field in /etc/ttydefs. initial-flags must be in a
format recognized by the stty command. These flags
are used by ttymon when searching for the correct
baud rate. They are set prior to writing the
prompt.
If this option is not specified, sttydefs will set
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initial-flags equal to the termio(7) flag 9600.
-f final-flags
Specifies the value to be used in the final-flags
field in /etc/ttydefs. final-flags must be in a
format recognized by the stty command. final-flags
are the termio(7) settings used by ttymon after
receiving a successful connection request and
immediately before invoking the service on the port.
If this option is not specified, sttydefs will set
final-flags equal to the termio(7) flags 9600 and
sane.
-r ttylabel
Removes any record in the ttydefs file that has
ttylabel as its label.
OUTPUT
If successful, sttydefs will exit with a status of 0.
sttydefs -l will generate the requested information and send
it to the standard output.
EXAMPLES
The following command will list all the entries in the
ttydefs file and print an error message for each invalid
entry that is detected.
sttydefs -l
The following shows a command that requests information for a
single label and its output:
# sttydefs -l 9600
------------------------------------------------------------------
9600:9600 hupcl erase ^h:9600 sane ixany tab3 hupcl erase ^h::4800
------------------------------------------------------------------
ttylabel: 9600
initial flags: 9600 hupcl erase ^h
final flags: 9600 sane ixany tab3 hupcl erase ^h
autobaud: no
nextlabel: 4800
The following sequence of commands will add the labels 1200,
2400, 4800, and 9600 and put them in a circular list:
sttydefs -a 1200 -n 2400 -i 1200 -f "1200 sane"
sttydefs -a 2400 -n 4800 -i 2400 -f "2400 sane"
sttydefs -a 4800 -n 9600 -i 4800 -f "4800 sane"
sttydefs -a 9600 -n 1200 -i 9600 -f "9600 sane"
FILES
/etc/ttydefs
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SEE ALSO
System Administrator's Guide, ``Terminal Line Settings.''
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