1996-05-05 19:01:13 +00:00
|
|
|
.\" Copyright (c) 1983, 1991, 1993
|
|
|
|
.\" The Regents of the University of California. All rights reserved.
|
1994-05-27 12:39:25 +00:00
|
|
|
.\"
|
|
|
|
.\" Redistribution and use in source and binary forms, with or without
|
|
|
|
.\" modification, are permitted provided that the following conditions
|
|
|
|
.\" are met:
|
|
|
|
.\" 1. Redistributions of source code must retain the above copyright
|
|
|
|
.\" notice, this list of conditions and the following disclaimer.
|
|
|
|
.\" 2. Redistributions in binary form must reproduce the above copyright
|
|
|
|
.\" notice, this list of conditions and the following disclaimer in the
|
|
|
|
.\" documentation and/or other materials provided with the distribution.
|
2014-02-17 22:27:32 +00:00
|
|
|
.\" 3. Neither the name of the University nor the names of its contributors
|
1994-05-27 12:39:25 +00:00
|
|
|
.\" may be used to endorse or promote products derived from this software
|
|
|
|
.\" without specific prior written permission.
|
|
|
|
.\"
|
|
|
|
.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
|
|
|
|
.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
|
|
.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
|
|
.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
|
|
|
|
.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
|
|
.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
|
|
.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
|
|
.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
|
|
.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
|
|
.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
|
|
.\" SUCH DAMAGE.
|
|
|
|
.\"
|
1996-05-05 19:01:13 +00:00
|
|
|
.\" from: @(#)gettytab.5 8.4 (Berkeley) 4/19/94
|
1999-08-28 00:22:10 +00:00
|
|
|
.\" $FreeBSD$
|
1996-05-05 19:01:13 +00:00
|
|
|
.\" "
|
|
|
|
.Dd April 19, 1994
|
1994-05-27 12:39:25 +00:00
|
|
|
.Dt GETTYTAB 5
|
2001-07-10 10:49:54 +00:00
|
|
|
.Os
|
1994-05-27 12:39:25 +00:00
|
|
|
.Sh NAME
|
|
|
|
.Nm gettytab
|
|
|
|
.Nd terminal configuration data base
|
|
|
|
.Sh SYNOPSIS
|
2000-11-20 14:42:24 +00:00
|
|
|
.Nm
|
1994-05-27 12:39:25 +00:00
|
|
|
.Sh DESCRIPTION
|
|
|
|
The
|
1997-11-21 07:43:53 +00:00
|
|
|
.Nm
|
1994-05-27 12:39:25 +00:00
|
|
|
file
|
|
|
|
is a simplified version of the
|
|
|
|
.Xr termcap 5
|
|
|
|
data base
|
|
|
|
used to describe terminal lines.
|
|
|
|
The initial terminal login process
|
|
|
|
.Xr getty 8
|
|
|
|
accesses the
|
1997-11-21 07:43:53 +00:00
|
|
|
.Nm
|
1994-05-27 12:39:25 +00:00
|
|
|
file each time it starts, allowing simpler
|
|
|
|
reconfiguration of terminal characteristics.
|
|
|
|
Each entry in the data base
|
|
|
|
is used to describe one class of terminals.
|
|
|
|
.Pp
|
|
|
|
There is a default terminal class,
|
2003-06-10 14:46:43 +00:00
|
|
|
.Va default ,
|
1994-05-27 12:39:25 +00:00
|
|
|
that is used to set global defaults for all other classes.
|
|
|
|
(That is, the
|
2003-06-10 14:46:43 +00:00
|
|
|
.Va default
|
1994-05-27 12:39:25 +00:00
|
|
|
entry is read, then the entry for the class required
|
|
|
|
is used to override particular settings.)
|
|
|
|
.Sh CAPABILITIES
|
|
|
|
Refer to
|
|
|
|
.Xr termcap 5
|
|
|
|
for a description of the file layout.
|
|
|
|
The
|
2003-06-10 14:46:43 +00:00
|
|
|
.Va default
|
1994-05-27 12:39:25 +00:00
|
|
|
column below lists defaults obtained if there is
|
|
|
|
no entry in the table obtained, nor one in the special
|
2003-06-10 14:46:43 +00:00
|
|
|
.Va default
|
1994-05-27 12:39:25 +00:00
|
|
|
table.
|
2000-12-20 13:26:01 +00:00
|
|
|
.Bl -column Name Type /usr/bin/login
|
2012-03-26 15:18:14 +00:00
|
|
|
.It Sy "Name Type Default Description"
|
1997-02-02 14:24:57 +00:00
|
|
|
.It "ac str unused expect-send chat script for modem answer"
|
1999-04-04 04:36:50 +00:00
|
|
|
.It "al str unused user to auto-login instead of prompting"
|
1994-05-27 12:39:25 +00:00
|
|
|
.It "ap bool false terminal uses any parity"
|
|
|
|
.It "bk str 0377 alternate end of line character (input break)"
|
1996-05-05 19:01:13 +00:00
|
|
|
.It "c0 num unused tty control flags to write messages"
|
|
|
|
.It "c1 num unused tty control flags to read login name"
|
|
|
|
.It "c2 num unused tty control flags to leave terminal as"
|
1994-05-27 12:39:25 +00:00
|
|
|
.It "ce bool false use crt erase algorithm"
|
|
|
|
.It "ck bool false use crt kill algorithm"
|
1996-05-05 19:01:13 +00:00
|
|
|
.It "cl str" Ta Dv NULL Ta
|
1994-05-27 12:39:25 +00:00
|
|
|
.No "screen clear sequence"
|
|
|
|
.It "co bool false console - add"
|
|
|
|
.Ql \en
|
|
|
|
after login prompt
|
2003-06-10 14:46:43 +00:00
|
|
|
.It "ct num 10 chat timeout for"
|
|
|
|
.Va \&ac
|
|
|
|
and
|
|
|
|
.Va \&ic
|
|
|
|
scripts
|
1997-02-02 14:24:57 +00:00
|
|
|
.It "dc num 0 chat debug bitmask"
|
|
|
|
.It "de num 0 delay secs and flush input before writing first prompt"
|
2001-06-07 13:53:23 +00:00
|
|
|
.It "df str %+ the" Xr strftime 3 "format used for \&%d in the banner message"
|
1994-05-27 12:39:25 +00:00
|
|
|
.It "ds str" Ta So Li ^Y Sc Ta
|
|
|
|
.No "delayed suspend character"
|
|
|
|
.It "dx bool false set"
|
|
|
|
.Dv DECCTLQ
|
|
|
|
.It "ec bool false leave echo"
|
2003-06-10 14:46:43 +00:00
|
|
|
.Em OFF
|
1994-05-27 12:39:25 +00:00
|
|
|
.It "ep bool false terminal uses even parity"
|
|
|
|
.It "er str" Ta So Li ^? Sc Ta
|
|
|
|
.No "erase character"
|
|
|
|
.It "et str" Ta So Li ^D Sc Ta
|
|
|
|
.No "end of text"
|
|
|
|
.Pq Dv EOF
|
|
|
|
character
|
1996-05-05 19:01:13 +00:00
|
|
|
.It "ev str" Ta Dv NULL Ta
|
1994-05-27 12:39:25 +00:00
|
|
|
.No "initial environment"
|
|
|
|
.It "f0 num unused tty mode flags to write messages"
|
|
|
|
.It "f1 num unused tty mode flags to read login name"
|
|
|
|
.It "f2 num unused tty mode flags to leave terminal as"
|
|
|
|
.It "fl str" Ta So Li ^O Sc Ta
|
|
|
|
.No "output flush character"
|
|
|
|
.It "hc bool false do"
|
2003-06-10 14:46:43 +00:00
|
|
|
.Em NOT
|
1994-05-27 12:39:25 +00:00
|
|
|
hangup line on last close
|
1996-05-05 19:01:13 +00:00
|
|
|
.It "he str" Ta Dv NULL Ta
|
1994-05-27 12:39:25 +00:00
|
|
|
.No "hostname editing string"
|
|
|
|
.It "hn str hostname hostname"
|
|
|
|
.It "ht bool false terminal has real tabs"
|
1997-02-02 14:24:57 +00:00
|
|
|
.It "hw bool false do cts/rts hardware flow control"
|
1996-05-05 19:01:13 +00:00
|
|
|
.It "i0 num unused tty input flags to write messages"
|
|
|
|
.It "i1 num unused tty input flags to read login name"
|
|
|
|
.It "i2 num unused tty input flags to leave terminal as"
|
1997-02-02 14:24:57 +00:00
|
|
|
.It "ic str unused expect-send chat script for modem initialization"
|
1998-05-04 02:37:29 +00:00
|
|
|
.It "if str unused display named file before prompt, like /etc/issue"
|
1994-05-27 12:39:25 +00:00
|
|
|
.It "ig bool false ignore garbage characters in login name"
|
|
|
|
.It "im str" Ta Dv NULL Ta
|
|
|
|
.No "initial (banner) message"
|
|
|
|
.It "in str" Ta So Li ^C Sc Ta
|
|
|
|
.No "interrupt character"
|
|
|
|
.It "is num unused input speed"
|
|
|
|
.It "kl str" Ta So Li ^U Sc Ta
|
|
|
|
.No "kill character"
|
1996-05-05 19:01:13 +00:00
|
|
|
.It "l0 num unused tty local flags to write messages"
|
|
|
|
.It "l1 num unused tty local flags to read login name"
|
|
|
|
.It "l2 num unused tty local flags to leave terminal as"
|
1994-05-27 12:39:25 +00:00
|
|
|
.It "lm str login: login prompt"
|
|
|
|
.It "ln str" Ta So Li ^V Sc Ta
|
|
|
|
.No "``literal next'' character"
|
|
|
|
.It "lo str" Ta Pa /usr/bin/login Ta
|
|
|
|
.No "program to exec when name obtained"
|
1996-05-05 19:01:13 +00:00
|
|
|
.It "mb bool false do flow control based on carrier"
|
2000-07-31 23:47:57 +00:00
|
|
|
.It "nc bool false terminal does not supply carrier (set clocal)"
|
1994-05-27 12:39:25 +00:00
|
|
|
.It "nl bool false terminal has (or might have) a newline character"
|
1996-05-05 19:01:13 +00:00
|
|
|
.It "np bool false terminal uses no parity (i.e. 8-bit characters)"
|
1994-05-27 12:39:25 +00:00
|
|
|
.It "nx str default next table (for auto speed selection)"
|
1996-05-05 19:01:13 +00:00
|
|
|
.It "o0 num unused tty output flags to write messages"
|
|
|
|
.It "o1 num unused tty output flags to read login name"
|
|
|
|
.It "o2 num unused tty output flags to leave terminal as"
|
1994-05-27 12:39:25 +00:00
|
|
|
.It "op bool false terminal uses odd parity"
|
|
|
|
.It "os num unused output speed"
|
|
|
|
.It "pc str" Ta So Li \e0 Sc Ta
|
|
|
|
.No "pad character"
|
|
|
|
.It "pe bool false use printer (hard copy) erase algorithm"
|
|
|
|
.It "pf num 0 delay"
|
|
|
|
between first prompt and following flush (seconds)
|
2003-06-17 12:29:36 +00:00
|
|
|
.It "pl bool false start PPP login program unconditionally if"
|
2003-06-10 14:46:43 +00:00
|
|
|
.Va \&pp
|
2003-06-10 14:20:38 +00:00
|
|
|
is specified
|
|
|
|
.It "pp str unused PPP login program"
|
1994-05-27 12:39:25 +00:00
|
|
|
.It "ps bool false line connected to a"
|
|
|
|
.Tn MICOM
|
|
|
|
port selector
|
|
|
|
.It "qu str" Ta So Li \&^\e Sc Ta
|
|
|
|
.No "quit character"
|
|
|
|
.It "rp str" Ta So Li ^R Sc Ta
|
|
|
|
.No "line retype character"
|
2003-06-10 14:46:43 +00:00
|
|
|
.It "rt num unused ring timeout when using"
|
|
|
|
.Va \&ac
|
1994-05-27 12:39:25 +00:00
|
|
|
.It "rw bool false do"
|
2003-06-10 14:46:43 +00:00
|
|
|
.Em NOT
|
1994-05-27 12:39:25 +00:00
|
|
|
use raw for input, use cbreak
|
|
|
|
.It "sp num unused line speed (input and output)"
|
|
|
|
.It "su str" Ta So Li ^Z Sc Ta
|
|
|
|
.No "suspend character"
|
|
|
|
.It "tc str none table continuation"
|
|
|
|
.It "to num 0 timeout (seconds)"
|
|
|
|
.It "tt str" Ta Dv NULL Ta
|
|
|
|
.No "terminal type (for environment)"
|
|
|
|
.It "ub bool false do unbuffered output (of prompts etc)"
|
|
|
|
.It "we str" Ta So Li ^W Sc Ta
|
|
|
|
.No "word erase character"
|
2012-03-26 15:18:14 +00:00
|
|
|
.It "xc bool false do"
|
2003-06-10 14:46:43 +00:00
|
|
|
.Em NOT
|
1994-05-27 12:39:25 +00:00
|
|
|
echo control chars as
|
|
|
|
.Ql ^X
|
|
|
|
.It "xf str" Ta So Li ^S Sc Ta Dv XOFF
|
|
|
|
(stop output) character
|
|
|
|
.It "xn str" Ta So Li ^Q Sc Ta Dv XON
|
|
|
|
(start output) character
|
1996-05-05 19:01:13 +00:00
|
|
|
.It "Lo str C the locale name used for \&%d in the banner message"
|
|
|
|
.El
|
|
|
|
.Pp
|
1997-11-21 07:43:53 +00:00
|
|
|
The following capabilities are no longer supported by
|
2002-08-13 16:07:28 +00:00
|
|
|
.Xr getty 8 :
|
2000-12-20 13:26:01 +00:00
|
|
|
.Bl -column Name Type /usr/bin/login
|
1996-05-05 19:01:13 +00:00
|
|
|
.It "bd num 0 backspace delay"
|
|
|
|
.It "cb bool false use crt backspace mode"
|
|
|
|
.It "cd num 0 carriage-return delay"
|
|
|
|
.It "fd num 0 form-feed (vertical motion) delay"
|
|
|
|
.It "lc bool false terminal has lower case"
|
|
|
|
.It "nd num 0 newline (line-feed) delay"
|
|
|
|
.It "uc bool false terminal is known upper case only"
|
1994-05-27 12:39:25 +00:00
|
|
|
.El
|
|
|
|
.Pp
|
|
|
|
If no line speed is specified, speed will not be altered
|
|
|
|
from that which prevails when getty is entered.
|
|
|
|
Specifying an input or output speed will override
|
|
|
|
line speed for stated direction only.
|
|
|
|
.Pp
|
|
|
|
Terminal modes to be used for the output of the message,
|
|
|
|
for input of the login name,
|
|
|
|
and to leave the terminal set as upon completion,
|
|
|
|
are derived from the boolean flags specified.
|
|
|
|
If the derivation should prove inadequate,
|
|
|
|
any (or all) of these three may be overridden
|
|
|
|
with one of the
|
2003-06-10 14:46:43 +00:00
|
|
|
.Va \&c0 ,
|
|
|
|
.Va \&c1 ,
|
|
|
|
.Va \&c2 ,
|
|
|
|
.Va \&i0 ,
|
|
|
|
.Va \&i1 ,
|
|
|
|
.Va \&i2 ,
|
|
|
|
.Va \&l0 ,
|
|
|
|
.Va \&l1 ,
|
|
|
|
.Va \&l2 ,
|
|
|
|
.Va \&o0 ,
|
|
|
|
.Va \&o1 ,
|
1994-05-27 12:39:25 +00:00
|
|
|
or
|
2003-06-10 14:46:43 +00:00
|
|
|
.Va \&o2
|
1994-05-27 12:39:25 +00:00
|
|
|
numeric specifications, which can be used to specify
|
|
|
|
(usually in octal, with a leading '0')
|
|
|
|
the exact values of the flags.
|
1996-05-05 19:01:13 +00:00
|
|
|
These flags correspond to the termios
|
2003-06-10 14:46:43 +00:00
|
|
|
.Va c_cflag ,
|
|
|
|
.Va c_iflag ,
|
|
|
|
.Va c_lflag ,
|
1996-05-05 19:01:13 +00:00
|
|
|
and
|
2003-06-10 14:46:43 +00:00
|
|
|
.Va c_oflag
|
2003-06-10 15:03:35 +00:00
|
|
|
fields, respectively.
|
|
|
|
Each these sets must be completely specified to be effective.
|
1996-05-05 19:01:13 +00:00
|
|
|
The
|
2003-06-10 14:46:43 +00:00
|
|
|
.Va \&f0 ,
|
|
|
|
.Va \&f1 ,
|
1996-05-05 19:01:13 +00:00
|
|
|
and
|
2003-06-10 14:46:43 +00:00
|
|
|
.Va \&f2
|
1996-05-05 19:01:13 +00:00
|
|
|
are excepted for backwards compatibility with a previous incarnation of
|
2003-06-10 15:03:35 +00:00
|
|
|
the TTY sub-system.
|
|
|
|
In these flags the bottom 16 bits of the (32 bits)
|
1996-05-05 19:01:13 +00:00
|
|
|
value contain the sgttyb
|
2003-06-10 14:46:43 +00:00
|
|
|
.Va sg_flags
|
1996-05-05 19:01:13 +00:00
|
|
|
field, while the top 16 bits represent the local mode word.
|
1994-05-27 12:39:25 +00:00
|
|
|
.Pp
|
|
|
|
Should
|
1996-05-05 19:01:13 +00:00
|
|
|
.Xr getty 8
|
1994-05-27 12:39:25 +00:00
|
|
|
receive a null character
|
|
|
|
(presumed to indicate a line break)
|
|
|
|
it will restart using the table indicated by the
|
2003-06-10 14:46:43 +00:00
|
|
|
.Va \&nx
|
2003-06-10 15:03:35 +00:00
|
|
|
entry.
|
|
|
|
If there is none, it will re-use its original table.
|
1994-05-27 12:39:25 +00:00
|
|
|
.Pp
|
|
|
|
Delays are specified in milliseconds, the nearest possible
|
|
|
|
delay available in the tty driver will be used.
|
|
|
|
Should greater certainty be desired, delays
|
|
|
|
with values 0, 1, 2, and 3 are interpreted as
|
|
|
|
choosing that particular delay algorithm from the driver.
|
|
|
|
.Pp
|
|
|
|
The
|
2003-06-10 14:46:43 +00:00
|
|
|
.Va \&cl
|
1994-05-27 12:39:25 +00:00
|
|
|
screen clear string may be preceded by a (decimal) number
|
|
|
|
of milliseconds of delay required (a la termcap).
|
|
|
|
This delay is simulated by repeated use of the pad character
|
2003-06-10 14:46:43 +00:00
|
|
|
.Va \&pc .
|
1994-05-27 12:39:25 +00:00
|
|
|
.Pp
|
1998-05-04 02:37:29 +00:00
|
|
|
The initial message, login message, and initial file;
|
2003-06-10 14:46:43 +00:00
|
|
|
.Va \&im ,
|
|
|
|
.Va \&lm
|
1998-05-04 02:37:29 +00:00
|
|
|
and
|
2003-06-10 14:46:43 +00:00
|
|
|
.Va \&if
|
1996-05-05 19:01:13 +00:00
|
|
|
may include any of the following character sequences, which expand to
|
|
|
|
information about the environment in which
|
|
|
|
.Xr getty 8
|
|
|
|
is running.
|
1997-02-02 14:24:57 +00:00
|
|
|
.Bl -tag -offset indent -width \&%xxxxxxxxxxxxxx
|
1996-05-05 19:01:13 +00:00
|
|
|
.It \&%d
|
2001-06-07 13:53:23 +00:00
|
|
|
The current date and time formatted according to the
|
2003-06-10 14:46:43 +00:00
|
|
|
.Va \&Lo
|
2001-06-07 13:53:23 +00:00
|
|
|
and
|
2003-06-10 14:46:43 +00:00
|
|
|
.Va \&df
|
2001-06-07 13:53:23 +00:00
|
|
|
strings.
|
1996-05-05 19:01:13 +00:00
|
|
|
.It \&%h
|
|
|
|
The hostname of the machine, which is normally obtained from the
|
|
|
|
system using
|
1996-12-14 23:27:20 +00:00
|
|
|
.Xr gethostname 3 ,
|
1996-05-05 19:01:13 +00:00
|
|
|
but may also be overridden by the
|
2003-06-10 14:46:43 +00:00
|
|
|
.Va \&hn
|
1994-05-27 12:39:25 +00:00
|
|
|
table entry.
|
1996-05-05 19:01:13 +00:00
|
|
|
In either case it may be edited with the
|
2003-06-10 14:46:43 +00:00
|
|
|
.Va \&he
|
1996-05-05 19:01:13 +00:00
|
|
|
string.
|
1994-05-27 12:39:25 +00:00
|
|
|
A '@' in the
|
2003-06-10 14:46:43 +00:00
|
|
|
.Va \&he
|
1996-05-05 19:01:13 +00:00
|
|
|
string causes one character from the real hostname to
|
1994-05-27 12:39:25 +00:00
|
|
|
be copied to the final hostname.
|
|
|
|
A '#' in the
|
2003-06-10 14:46:43 +00:00
|
|
|
.Va \&he
|
1996-05-05 19:01:13 +00:00
|
|
|
string causes the next character of the real hostname
|
1994-05-27 12:39:25 +00:00
|
|
|
to be skipped.
|
1996-05-05 19:01:13 +00:00
|
|
|
Each character that
|
|
|
|
is neither '@' nor '#' is copied into the final hostname.
|
1994-05-27 12:39:25 +00:00
|
|
|
Surplus '@' and '#' characters are ignored.
|
1996-05-05 19:01:13 +00:00
|
|
|
.It \&%t
|
|
|
|
The tty name.
|
|
|
|
.It "\&%m, \&%r, \&%s, \&%v"
|
|
|
|
The type of machine, release of the operating system, name of the
|
|
|
|
operating system, and version of the kernel, respectively, as
|
|
|
|
returned by
|
1996-12-14 23:27:20 +00:00
|
|
|
.Xr uname 3 .
|
1996-05-05 19:01:13 +00:00
|
|
|
.It \&%%
|
|
|
|
A
|
|
|
|
.Dq %
|
|
|
|
character.
|
|
|
|
.El
|
1994-05-27 12:39:25 +00:00
|
|
|
.Pp
|
|
|
|
When getty execs the login process, given
|
|
|
|
in the
|
2003-06-10 14:46:43 +00:00
|
|
|
.Va \&lo
|
1994-05-27 12:39:25 +00:00
|
|
|
string (usually
|
|
|
|
.Dq Pa /usr/bin/login ) ,
|
|
|
|
it will have set
|
|
|
|
the environment to include the terminal type, as indicated
|
|
|
|
by the
|
2003-06-10 14:46:43 +00:00
|
|
|
.Va \&tt
|
1994-05-27 12:39:25 +00:00
|
|
|
string (if it exists).
|
|
|
|
The
|
2003-06-10 14:46:43 +00:00
|
|
|
.Va \&ev
|
1994-05-27 12:39:25 +00:00
|
|
|
string, can be used to enter additional data into
|
|
|
|
the environment.
|
|
|
|
It is a list of comma separated strings, each of which
|
|
|
|
will presumably be of the form
|
2003-06-10 14:46:43 +00:00
|
|
|
.Li name=value .
|
1994-05-27 12:39:25 +00:00
|
|
|
.Pp
|
|
|
|
If a non-zero timeout is specified, with
|
2003-06-10 14:46:43 +00:00
|
|
|
.Va \&to ,
|
1994-05-27 12:39:25 +00:00
|
|
|
then getty will exit within the indicated
|
|
|
|
number of seconds, either having
|
|
|
|
received a login name and passed control
|
|
|
|
to
|
1996-05-05 19:01:13 +00:00
|
|
|
.Xr login 1 ,
|
1994-05-27 12:39:25 +00:00
|
|
|
or having received an alarm signal, and exited.
|
|
|
|
This may be useful to hangup dial in lines.
|
|
|
|
.Pp
|
|
|
|
Output from
|
1996-05-05 19:01:13 +00:00
|
|
|
.Xr getty 8
|
1994-05-27 12:39:25 +00:00
|
|
|
is even parity unless
|
2003-06-10 14:46:43 +00:00
|
|
|
.Va \&op
|
1996-05-05 19:01:13 +00:00
|
|
|
or
|
2003-06-10 14:46:43 +00:00
|
|
|
.Va \&np
|
1994-05-27 12:39:25 +00:00
|
|
|
is specified.
|
|
|
|
The
|
2003-06-10 14:46:43 +00:00
|
|
|
.Va \&op
|
1994-05-27 12:39:25 +00:00
|
|
|
string
|
|
|
|
may be specified with
|
2003-06-10 14:46:43 +00:00
|
|
|
.Va \&ap
|
1994-05-27 12:39:25 +00:00
|
|
|
to allow any parity on input, but generate odd parity output.
|
|
|
|
Note: this only applies while getty is being run,
|
|
|
|
terminal driver limitations prevent a more complete
|
|
|
|
implementation.
|
2003-06-08 12:38:18 +00:00
|
|
|
The
|
|
|
|
.Xr getty 8
|
|
|
|
utility does not check parity of input characters in
|
1994-05-27 12:39:25 +00:00
|
|
|
.Dv RAW
|
|
|
|
mode.
|
1996-11-13 01:06:40 +00:00
|
|
|
.Pp
|
2003-06-10 14:20:38 +00:00
|
|
|
If a
|
2003-06-10 14:46:43 +00:00
|
|
|
.Va \&pp
|
2003-06-10 14:20:38 +00:00
|
|
|
string is specified and a PPP link bring-up sequence is recognized,
|
|
|
|
getty will invoke the program referenced by the
|
2003-06-10 14:46:43 +00:00
|
|
|
.Va \&pp
|
2003-06-10 14:20:38 +00:00
|
|
|
option.
|
|
|
|
This can be used to handle incoming PPP calls.
|
|
|
|
If the
|
2003-06-10 14:46:43 +00:00
|
|
|
.Va \&pl
|
2003-06-10 14:20:38 +00:00
|
|
|
option is true as well,
|
|
|
|
.Xr getty 8
|
|
|
|
will skip the user name prompt and the PPP detection phase, and will
|
|
|
|
invoke the program specified by
|
2003-06-10 14:46:43 +00:00
|
|
|
.Va \&pp
|
2003-06-10 14:20:38 +00:00
|
|
|
instantly.
|
1997-02-02 14:24:57 +00:00
|
|
|
.Pp
|
1997-11-21 07:43:53 +00:00
|
|
|
.Nm Getty
|
1997-02-02 14:24:57 +00:00
|
|
|
provides some basic intelligent modem handling by providing a chat
|
|
|
|
script feature available via two capabilities:
|
|
|
|
.Pp
|
|
|
|
.Bl -tag -offset indent -width \&xxxxxxxx -compact
|
|
|
|
.It ic
|
|
|
|
Chat script to initialize modem.
|
|
|
|
.It ac
|
|
|
|
Chat script to answer a call.
|
|
|
|
.El
|
|
|
|
.Pp
|
|
|
|
A chat script is a set of expect/send string pairs.
|
|
|
|
When a chat string starts,
|
1997-11-21 07:43:53 +00:00
|
|
|
.Nm getty
|
1997-02-02 14:24:57 +00:00
|
|
|
will wait for the first string, and if it finds it, will send the
|
|
|
|
second, and so on.
|
|
|
|
Strings specified are separated by one or more tabs or spaces.
|
1999-09-20 09:15:23 +00:00
|
|
|
Strings may contain standard ASCII characters and special 'escapes',
|
1997-02-02 14:24:57 +00:00
|
|
|
which consist of a backslash character followed by one or more
|
|
|
|
characters which are interpreted as follows:
|
|
|
|
.Pp
|
|
|
|
.Bl -tag -offset indent -width \&xxxxxxxx -compact
|
|
|
|
.It \ea
|
|
|
|
bell character.
|
|
|
|
.It \eb
|
|
|
|
backspace.
|
|
|
|
.It \en
|
|
|
|
newline.
|
|
|
|
.It \ee
|
|
|
|
escape.
|
|
|
|
.It \ef
|
|
|
|
formfeed.
|
|
|
|
.It \ep
|
|
|
|
half-second pause.
|
|
|
|
.It \er
|
|
|
|
carriage return.
|
2001-02-01 16:38:02 +00:00
|
|
|
.It \eS , \es
|
1997-02-02 14:24:57 +00:00
|
|
|
space character.
|
|
|
|
.It \et
|
|
|
|
tab.
|
|
|
|
.It \exNN
|
|
|
|
hexadecimal byte value.
|
|
|
|
.It \e0NNN
|
|
|
|
octal byte value.
|
|
|
|
.El
|
|
|
|
.Pp
|
|
|
|
Note that the
|
|
|
|
.Ql \ep
|
|
|
|
sequence is only valid for send strings and causes a half-second
|
|
|
|
pause between sending the previous and next characters.
|
2002-12-27 12:15:40 +00:00
|
|
|
Hexadecimal values are, at most, 2 hex digits long, and octal
|
1997-02-02 14:24:57 +00:00
|
|
|
values are a maximum of 3 octal digits.
|
|
|
|
.Pp
|
|
|
|
The
|
2003-06-10 14:46:43 +00:00
|
|
|
.Va \&ic
|
1997-02-02 14:24:57 +00:00
|
|
|
chat sequence is used to initialize a modem or similar device.
|
|
|
|
A typical example of an init chat script for a modem with a
|
|
|
|
hayes compatible command set might look like this:
|
|
|
|
.Pp
|
|
|
|
.Dl :ic="" ATE0Q0V1\er OK\er ATS0=0\er OK\er:
|
|
|
|
.Pp
|
|
|
|
This script waits for nothing (which always succeeds), sends
|
|
|
|
a sequence to ensure that the modem is in the correct mode
|
|
|
|
(suppress command echo, send responses in verbose mode),
|
|
|
|
and then disables auto-answer.
|
|
|
|
It waits for an "OK" response before it terminates.
|
|
|
|
The init sequence is used to check modem responses to ensure that
|
|
|
|
the modem is functioning correctly.
|
|
|
|
If the init script fails to complete,
|
|
|
|
.Nm getty
|
|
|
|
considers this to be fatal, and results in an error logged via
|
|
|
|
.Xr syslogd 8 ,
|
|
|
|
and exiting.
|
|
|
|
.Pp
|
|
|
|
Similarly, an answer chat script is used to manually answer the
|
|
|
|
phone in response to (usually) a "RING".
|
|
|
|
When run with an answer script,
|
|
|
|
.Nm getty
|
|
|
|
opens the port in non-blocking mode, clears any extraneous input
|
|
|
|
and waits for data on the port.
|
|
|
|
As soon as any data is available, the answer chat script is
|
|
|
|
started and scanned for a string, and responds according to
|
|
|
|
the answer chat script.
|
|
|
|
With a hayes compatible modem, this would normally look something
|
|
|
|
like:
|
|
|
|
.Pp
|
|
|
|
.Dl :ac=RING\er ATA\er CONNECT:
|
|
|
|
.Pp
|
|
|
|
This causes the modem to answer the call via the "ATA" command,
|
|
|
|
then scans input for a "CONNECT" string.
|
|
|
|
If this is received before a
|
2003-06-10 14:46:43 +00:00
|
|
|
.Va \&ct
|
|
|
|
timeout, then a normal login sequence commences.
|
1997-02-02 14:24:57 +00:00
|
|
|
.Pp
|
|
|
|
The
|
2003-06-10 14:46:43 +00:00
|
|
|
.Va \&ct
|
1997-02-02 14:24:57 +00:00
|
|
|
capability specifies a timeout for all send and expect strings.
|
|
|
|
This timeout is set individually for each expect wait and send
|
|
|
|
string and must be at least as long as the time it takes for
|
|
|
|
a connection to be established between a remote and local
|
|
|
|
modem (usually around 10 seconds).
|
|
|
|
.Pp
|
|
|
|
In most situations, you will want to flush any additional
|
|
|
|
input after the connection has been detected, and the
|
2003-06-10 14:46:43 +00:00
|
|
|
.Va \&de
|
1997-02-02 14:24:57 +00:00
|
|
|
capability may be used to do that, as well as delay for a
|
|
|
|
short time after the connection has been established during
|
|
|
|
which all of the connection data has been sent by the modem.
|
1994-05-27 12:39:25 +00:00
|
|
|
.Sh SEE ALSO
|
|
|
|
.Xr login 1 ,
|
1996-12-14 23:27:20 +00:00
|
|
|
.Xr gethostname 3 ,
|
|
|
|
.Xr uname 3 ,
|
1994-05-27 12:39:25 +00:00
|
|
|
.Xr termcap 5 ,
|
1997-02-02 14:24:57 +00:00
|
|
|
.Xr getty 8 ,
|
2000-11-15 17:27:54 +00:00
|
|
|
.Xr telnetd 8
|
2005-01-18 09:29:40 +00:00
|
|
|
.Sh HISTORY
|
|
|
|
The
|
|
|
|
.Nm
|
|
|
|
file format appeared in
|
|
|
|
.Bx 4.2 .
|
1994-05-27 12:39:25 +00:00
|
|
|
.Sh BUGS
|
|
|
|
The special characters (erase, kill, etc.) are reset to system defaults
|
|
|
|
by
|
|
|
|
.Xr login 1 .
|
|
|
|
In
|
|
|
|
.Em all
|
|
|
|
cases, '#' or '^H' typed in a login name will be treated as
|
|
|
|
an erase character, and '@' will be treated as a kill character.
|
|
|
|
.Pp
|
|
|
|
The delay stuff is a real crock.
|
|
|
|
Apart form its general lack of flexibility, some
|
|
|
|
of the delay algorithms are not implemented.
|
|
|
|
The terminal driver should support sane delay settings.
|
|
|
|
.Pp
|
|
|
|
The
|
2003-06-10 14:46:43 +00:00
|
|
|
.Va \&he
|
1994-05-27 12:39:25 +00:00
|
|
|
capability is stupid.
|
|
|
|
.Pp
|
|
|
|
The
|
1997-11-21 07:43:53 +00:00
|
|
|
.Xr termcap 5
|
1994-05-27 12:39:25 +00:00
|
|
|
format is horrid, something more rational should
|
|
|
|
have been chosen.
|