sttydefs(1M) UNIX System V sttydefs(1M)
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 specified, sttydefs will display the entire
contents of /etc/ttydefs. sttydefs will verify that each entry
it displays is correct and that the entry's nextlabel 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 conjunction 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 specified, 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 initial-flags
equal to the termio(7) flag 9600.
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sttydefs(1M) UNIX System V sttydefs(1M)
-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
SEE ALSO
System Administrator's Guide, ``Terminal Line Settings.''
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