UUGETTY(1M) INTERACTIVE UNIX System UUGETTY(1M)
NAME
uugetty - set terminal type, modes, speed, and line discip-
line
SYNOPSIS
/usr/lib/uucp/uugetty [-t timeout] [-r] line
[speed [type [linedisc] ] ]
/usr/lib/uucp/uugetty -c file
DESCRIPTION
uugetty is a standard getty(1M) modified to allow a tty line
to be used by uucico, cu, and ct; that is, the line can be
used in both directions. The uugetty will allow users to
login, but if the line is free, uucico, cu, or ct can use it
for dialing out. The implementation depends on the fact
that uucico, cu, and ct create lock files when devices are
used. When the "open()" returns (or the first character is
read when -r option is used), the status of the lock file
indicates whether the line is being used by uucico, cu, ct,
or someone trying to login. Note that in the -r case,
several <carriage-return> characters may be required before
the login message is output. The human users will be able
to handle this slight inconvenience. uucico trying to login
will have to be told by using the following login script:
"" \r\d\r\d\r\d\r in:--in: ...
where the ... is whatever would normally be used for the
login sequence.
If there is a uugetty on one end of a direct line, there
must be a uugetty on the other end as well. Here is an
/etc/inittab entry using uugetty on an intelligent modem or
direct line:
30:2:respawn:/usr/lib/uucp/uugetty -r -t 60 tty00 1200
The meanings of the available options are:
-t timeout
Specifies that uugetty should exit if the open on the
line succeeds and there is no response to the login
prompt in timeout seconds. timeout is replaced by an
integer.
-r Causes uugetty to wait to read a character before it
puts out the login message, thus preventing two uuget-
tys from looping. An entry for an intelligent modem or
direct line that has a uugetty on each end must use
this option.
line Defines the name of the line to which uugetty will
attach itself. The line name will point to an entry in
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UUGETTY(1M) INTERACTIVE UNIX System UUGETTY(1M)
the /dev directory. For example, /dev/tty00.
speed
Defines the entry to use from the /etc/gettydefs file.
The entry defines the line speed, the login message,
the initial tty setting, and the next speed to try if
the user says the speed is inappropriate (by sending a
break character). The default speed is 300.
type Defines the type of terminal connected to the line.
The default terminal is none, representing a normal
terminal unknown to the system.
linedisc
Sets the line discipline to use on the line. The
default is LDISC0, which is the only one currently com-
piled into the operating system.
-c file
Checks the speed and tty definitions in file and sends
the results to standard output. Unrecognized modes and
improperly constructed entries are reported. For
correct entries, flag values are printed. file is
replaced by /etc/gettydefs or a similarly structured
file.
FILES
/etc/gettydefs
/etc/issue
SEE ALSO
login(1), ct(1C), cu(1C), getty(1M), init(1M), uucico(1M),
tty(7).
ioctl(2), gettydefs(4), inittab(4) in the INTERACTIVE SDS
Guide and Programmer's Reference Manual.
BUGS
ct will not work when uugetty is used with an intelligent
modem such as penril or ventel.
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