Import NetBSD's termios'ed getty into a vendor branch.

Obtained from:	NetBSD 1.1R
This commit is contained in:
Joerg Wunsch 1996-04-13 15:33:16 +00:00
parent 6f2c1e42c7
commit 712c581c89
Notes: svn2git 2020-12-20 02:59:44 +00:00
svn path=/vendor/NetBSD/dist/; revision=15249
10 changed files with 2363 additions and 0 deletions

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libexec/getty/Makefile Normal file
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# from: @(#)Makefile 8.1 (Berkeley) 6/4/93
# $Id: Makefile,v 1.7 1994/12/22 10:27:06 cgd Exp $
PROG= getty
SRCS= main.c init.c subr.c
DPADD+= ${LIBUTIL}
LDADD+= -lutil
MAN= getty.8 gettytab.5 ttys.5
.include <bsd.prog.mk>

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/*
* Copyright (c) 1993
* The Regents of the University of California. All rights reserved.
*
* 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.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 4. Neither the name of the University nor the names of its contributors
* 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.
*
* from: @(#)extern.h 8.1 (Berkeley) 6/4/93
* $Id: extern.h,v 1.2 1994/08/17 20:10:29 pk Exp $
*/
struct delayval;
int adelay __P((int, struct delayval *));
char *autobaud __P((void));
int delaybits __P((void));
void edithost __P((char *));
void gendefaults __P((void));
int getent __P((char *, char *));
int getflag __P((char *));
long getnum __P((char *));
char *getstr __P((char *, char **));
void gettable __P((char *, char *));
void makeenv __P((char *[]));
char *portselector __P((void));
void set_ttydefaults __P((int));
void setchars __P((void));
void setdefaults __P((void));
void setflags __P((int));
int speed __P((int));
int login_tty __P((int)); /* From libutil. */

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.\" Copyright (c) 1980, 1991, 1993
.\" The Regents of the University of California. All rights reserved.
.\"
.\" 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.
.\" 3. All advertising materials mentioning features or use of this software
.\" must display the following acknowledgement:
.\" This product includes software developed by the University of
.\" California, Berkeley and its contributors.
.\" 4. Neither the name of the University nor the names of its contributors
.\" 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.
.\"
.\" from: @(#)getty.8 8.1 (Berkeley) 6/4/93
.\" $Id: getty.8,v 1.3 1994/08/17 20:10:30 pk Exp $
.\"
.Dd June 4, 1993
.Dt GETTY 8
.Os BSD 4
.Sh NAME
.Nm getty
.Nd set terminal mode
.Sh SYNOPSIS
.Nm getty
.Oo
.Ar type
.Op Ar tty
.Oc
.Sh DESCRIPTION
The
.Nm getty
program
is called by
.Xr init 8
to open and initialize the tty line, read a login name, and invoke
.Xr login 1 .
.Pp
The argument
.Ar tty
is the special device file in
.Pa /dev
to open for the terminal (for example, ``ttyh0'').
If there is no argument or the argument is
.Ql Fl ,
the tty line is assumed to be open as file descriptor 0.
.Pp
The
.Ar type
argument can be used to make
.Nm getty
treat the terminal line specially.
This argument is used as an index into the
.Nm gettytab 5
database, to determine the characteristics of the line.
If there is no argument, or there is no such table, the
.Em default
table is used.
If there is no
.Pa /etc/gettytab
a set of system defaults is used.
If indicated by the table located,
.Nm getty
will clear the terminal screen,
print a banner heading,
and prompt for a login name.
Usually either the banner or the login prompt will include
the system hostname.
.Pp
Most of the default actions of
.Nm getty
can be circumvented, or modified, by a suitable
.Nm gettytab
table.
.Pp
The
.Nm getty
program
can be set to timeout after some interval,
which will cause dial up lines to hang up
if the login name is not entered reasonably quickly.
.Sh DIAGNOSTICS
.Bl -diag
.It "ttyxx: No such device or address."
.It "ttyxx: No such file or address."
A terminal which is turned
on in the
.Xr ttys
file cannot be opened, likely because the requisite
lines are either not configured into the system, the associated device
was not attached during boot-time system configuration,
or the special file in
.Pa /dev
does not exist.
.El
.Sh FILES
.Bl -tag -width /etc/gettytab -compact
.It Pa /etc/gettytab
.El
.Sh SEE ALSO
.Xr gettytab 5 ,
.Xr init 8 ,
.Xr login 1 ,
.Xr ioctl 2 ,
.Xr tty 4 ,
.Xr ttys 5
.Sh HISTORY
A
.Nm getty
program appeared in
.At v6 .

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.\" Copyright (c) 1983, 1991, 1993
.\" The Regents of the University of California. All rights reserved.
.\"
.\" 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.
.\" 3. All advertising materials mentioning features or use of this software
.\" must display the following acknowledgement:
.\" This product includes software developed by the University of
.\" California, Berkeley and its contributors.
.\" 4. Neither the name of the University nor the names of its contributors
.\" 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.
.\"
.\" from: @(#)gettytab.5 8.4 (Berkeley) 4/19/94
.\" $Id: gettytab.5,v 1.12 1994/09/24 00:56:05 mycroft Exp $
.\"
.Dd April 19, 1994
.Dt GETTYTAB 5
.Os BSD 4.2
.Sh NAME
.Nm gettytab
.Nd terminal configuration data base
.Sh SYNOPSIS
.Nm gettytab
.Sh DESCRIPTION
The
.Nm gettytab
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
.Nm gettytab
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,
.Em default ,
that is used to set global defaults for all other classes.
(That is, the
.Em default
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
.Em default
column below lists defaults obtained if there is
no entry in the table obtained, nor one in the special
.Em default
table.
.Bl -column Namexx /usr/bin/login Default
.It Sy Name Type Default Description
.It "ap bool false terminal uses any parity"
.It "bk str 0377 alternate end of line character (input break)"
.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"
.It "ce bool false use crt erase algorithm"
.It "ck bool false use crt kill algorithm"
.It "cl str" Ta Dv NULL Ta
.No "screen clear sequence"
.It "co bool false console - add"
.Ql \en
after login prompt
.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"
.Tn OFF
.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
.It "ev str" Ta Dv NULL Ta
.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"
.Tn NOT
hangup line on last close
.It "he str" Ta Dv NULL Ta
.No "hostname editing string"
.It "hn str hostname hostname"
.It "ht bool false terminal has real tabs"
.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"
.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"
.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"
.It "lc bool false terminal has lower case"
.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"
.It "mb bool false do flow control based on carrier"
.It "nl bool false terminal has (or might have) a newline character"
.It "np bool false terminal uses no parity (i.e. 8-bit characters)"
.It "nx str default next table (for auto speed selection)"
.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"
.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)
.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"
.It "rw bool false do"
.Tn NOT
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"
.It "xc bool false do
.Tn NOT
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
.El
.Pp
The following capabilities are no longer supported by getty(8):
.Bl -column Namexx /usr/bin/login Default
.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 "nd num 0 newline (line-feed) delay"
.It "uc bool false terminal is known upper case only"
.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
.Em \&c0 ,
.Em \&c1 ,
.Em \&c2 ,
.Em \&i0 ,
.Em \&i1 ,
.Em \&i2 ,
.Em \&l0 ,
.Em \&l1 ,
.Em \&l2 ,
.Em \&o0 ,
.Em \&o1 ,
or
.Em \&o2
numeric specifications, which can be used to specify
(usually in octal, with a leading '0')
the exact values of the flags.
These flags correspond to the termios
.Em c_cflag ,
.Em c_iflag ,
.Em c_lflag ,
and
.Em c_oflag
fields, respectively. Each these sets must be completely specified to be
effective.
The
.Em \&f0 ,
.Em \&f1 ,
and
.Em \&f2
are excepted for backwards compatibility with a previous incarnation of
the TTY sub-system. In these flags the bottom 16 bits of the (32 bits)
value contain the sgttyb
.Em sg_flags
field, while the top 16 bits represent the local mode word.
.Pp
Should
.Xr getty 8
receive a null character
(presumed to indicate a line break)
it will restart using the table indicated by the
.Em nx
entry. If there is none, it will re-use its original table.
.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
.Em \&cl
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
.Em \&pc .
.Pp
The initial message, and login message,
.Em \&im
and
.Em \&lm
may include any of the following character sequences, which expand to
information about the environment in which
.Xr getty 8
is running.
.Pp
.Bl -tag -width \&%xxx -compact
.It \&%d
The current date.
.It \&%h
The hostname of the machine, which is normally obtained from the
system using
.Xr gethostname 2 ,
but may also be overridden by the
.Em \&hn
table entry.
In either case it may be edited with the
.Em \&he
string.
A '@' in the
.Em \&he
string causes one character from the real hostname to
be copied to the final hostname.
A '#' in the
.Em \&he
string causes the next character of the real hostname
to be skipped.
Each character that
is neither '@' nor '#' is copied into the final hostname.
Surplus '@' and '#' characters are ignored.
.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
.Xr uname 2 .
.It \&%%
A
.Dq %
character.
.El
.Pp
When getty execs the login process, given
in the
.Em \&lo
string (usually
.Dq Pa /usr/bin/login ) ,
it will have set
the environment to include the terminal type, as indicated
by the
.Em \&tt
string (if it exists).
The
.Em \&ev
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
.Em name=value .
.Pp
If a non-zero timeout is specified, with
.Em \&to ,
then getty will exit within the indicated
number of seconds, either having
received a login name and passed control
to
.Xr login 1 ,
or having received an alarm signal, and exited.
This may be useful to hangup dial in lines.
.Pp
Output from
.Xr getty 8
is even parity unless
.Em \&op
or
.Em \&np
is specified.
The
.Em \&op
string
may be specified with
.Em \&ap
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.
.Xr Getty 8
does not check parity of input characters in
.Dv RAW
mode.
.Sh SEE ALSO
.Xr login 1 ,
.Xr gethostname 2 ,
.Xr uname 2 ,
.Xr termcap 5 ,
.Xr getty 8 .
.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
.Em \&he
capability is stupid.
.Pp
The
.Xr termcap
format is horrid, something more rational should
have been chosen.
.Sh HISTORY
The
.Nm gettytab
file format appeared in 4.2BSD.

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/*
* Copyright (c) 1983, 1993, 1994
* The Regents of the University of California. All rights reserved.
*
* 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.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 4. Neither the name of the University nor the names of its contributors
* 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.
*
* from: @(#)gettytab.h 8.2 (Berkeley) 3/30/94
* $Id: gettytab.h,v 1.7 1994/08/17 20:10:34 pk Exp $
*/
/*
* Getty description definitions.
*/
struct gettystrs {
char *field; /* name to lookup in gettytab */
char *defalt; /* value we find by looking in defaults */
char *value; /* value that we find there */
};
struct gettynums {
char *field; /* name to lookup */
long defalt; /* number we find in defaults */
long value; /* number we find there */
int set; /* we actually got this one */
};
struct gettyflags {
char *field; /* name to lookup */
char invrt; /* name existing in gettytab --> false */
char defalt; /* true/false in defaults */
char value; /* true/false flag */
char set; /* we found it */
};
/*
* String values.
*/
#define NX gettystrs[0].value
#define CL gettystrs[1].value
#define IM gettystrs[2].value
#define LM gettystrs[3].value
#define ER gettystrs[4].value
#define KL gettystrs[5].value
#define ET gettystrs[6].value
#define PC gettystrs[7].value
#define TT gettystrs[8].value
#define EV gettystrs[9].value
#define LO gettystrs[10].value
#define HN gettystrs[11].value
#define HE gettystrs[12].value
#define IN gettystrs[13].value
#define QU gettystrs[14].value
#define XN gettystrs[15].value
#define XF gettystrs[16].value
#define BK gettystrs[17].value
#define SU gettystrs[18].value
#define DS gettystrs[19].value
#define RP gettystrs[20].value
#define FL gettystrs[21].value
#define WE gettystrs[22].value
#define LN gettystrs[23].value
/*
* Numeric definitions.
*/
#define IS gettynums[0].value
#define OS gettynums[1].value
#define SP gettynums[2].value
#define ND gettynums[3].value
#define CD gettynums[4].value
#define TD gettynums[5].value
#define FD gettynums[6].value
#define BD gettynums[7].value
#define TO gettynums[8].value
#define F0 gettynums[9].value
#define F0set gettynums[9].set
#define F1 gettynums[10].value
#define F1set gettynums[10].set
#define F2 gettynums[11].value
#define F2set gettynums[11].set
#define PF gettynums[12].value
#define C0 gettynums[13].value
#define C0set gettynums[13].set
#define C1 gettynums[14].value
#define C1set gettynums[14].set
#define C2 gettynums[15].value
#define C2set gettynums[15].set
#define I0 gettynums[16].value
#define I0set gettynums[16].set
#define I1 gettynums[17].value
#define I1set gettynums[17].set
#define I2 gettynums[18].value
#define I2set gettynums[18].set
#define L0 gettynums[19].value
#define L0set gettynums[19].set
#define L1 gettynums[20].value
#define L1set gettynums[20].set
#define L2 gettynums[21].value
#define L2set gettynums[21].set
#define O0 gettynums[22].value
#define O0set gettynums[22].set
#define O1 gettynums[23].value
#define O1set gettynums[23].set
#define O2 gettynums[24].value
#define O2set gettynums[24].set
/*
* Boolean values.
*/
#define HT gettyflags[0].value
#define NL gettyflags[1].value
#define EP gettyflags[2].value
#define EPset gettyflags[2].set
#define OP gettyflags[3].value
#define OPset gettyflags[3].set
#define AP gettyflags[4].value
#define APset gettyflags[4].set
#define EC gettyflags[5].value
#define CO gettyflags[6].value
#define CB gettyflags[7].value
#define CK gettyflags[8].value
#define CE gettyflags[9].value
#define PE gettyflags[10].value
#define RW gettyflags[11].value
#define XC gettyflags[12].value
#define LC gettyflags[13].value
#define UC gettyflags[14].value
#define IG gettyflags[15].value
#define PS gettyflags[16].value
#define HC gettyflags[17].value
#define UB gettyflags[18].value
#define AB gettyflags[19].value
#define DX gettyflags[20].value
#define NP gettyflags[21].value
#define MB gettyflags[22].value
int getent __P((char *, char *));
long getnum __P((char *));
int getflag __P((char *));
char *getstr __P((char *, char **));
extern struct gettyflags gettyflags[];
extern struct gettynums gettynums[];
extern struct gettystrs gettystrs[];
extern int hopcount;

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/*
* Copyright (c) 1983, 1993
* The Regents of the University of California. All rights reserved.
*
* 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.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 4. Neither the name of the University nor the names of its contributors
* 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.
*/
#ifndef lint
/*static char sccsid[] = "from: @(#)init.c 8.1 (Berkeley) 6/4/93";*/
static char rcsid[] = "$Id: init.c,v 1.6 1994/08/17 20:10:35 pk Exp $";
#endif /* not lint */
/*
* Getty table initializations.
*
* Melbourne getty.
*/
#include <termios.h>
#include "gettytab.h"
#include "pathnames.h"
extern struct termios tmode;
extern char hostname[];
struct gettystrs gettystrs[] = {
{ "nx" }, /* next table */
{ "cl" }, /* screen clear characters */
{ "im" }, /* initial message */
{ "lm", "login: " }, /* login message */
{ "er", &tmode.c_cc[VERASE] }, /* erase character */
{ "kl", &tmode.c_cc[VKILL] }, /* kill character */
{ "et", &tmode.c_cc[VEOF] }, /* eof chatacter (eot) */
{ "pc", "" }, /* pad character */
{ "tt" }, /* terminal type */
{ "ev" }, /* enviroment */
{ "lo", _PATH_LOGIN }, /* login program */
{ "hn", hostname }, /* host name */
{ "he" }, /* host name edit */
{ "in", &tmode.c_cc[VINTR] }, /* interrupt char */
{ "qu", &tmode.c_cc[VQUIT] }, /* quit char */
{ "xn", &tmode.c_cc[VSTART] }, /* XON (start) char */
{ "xf", &tmode.c_cc[VSTOP] }, /* XOFF (stop) char */
{ "bk", &tmode.c_cc[VEOL] }, /* brk char (alt \n) */
{ "su", &tmode.c_cc[VSUSP] }, /* suspend char */
{ "ds", &tmode.c_cc[VDSUSP] }, /* delayed suspend */
{ "rp", &tmode.c_cc[VREPRINT] },/* reprint char */
{ "fl", &tmode.c_cc[VDISCARD] },/* flush output */
{ "we", &tmode.c_cc[VWERASE] }, /* word erase */
{ "ln", &tmode.c_cc[VLNEXT] }, /* literal next */
{ 0 }
};
struct gettynums gettynums[] = {
{ "is" }, /* input speed */
{ "os" }, /* output speed */
{ "sp" }, /* both speeds */
{ "nd" }, /* newline delay */
{ "cd" }, /* carriage-return delay */
{ "td" }, /* tab delay */
{ "fd" }, /* form-feed delay */
{ "bd" }, /* backspace delay */
{ "to" }, /* timeout */
{ "f0" }, /* output flags */
{ "f1" }, /* input flags */
{ "f2" }, /* user mode flags */
{ "pf" }, /* delay before flush at 1st prompt */
{ "c0" }, /* output c_flags */
{ "c1" }, /* input c_flags */
{ "c2" }, /* user mode c_flags */
{ "i0" }, /* output i_flags */
{ "i1" }, /* input i_flags */
{ "i2" }, /* user mode i_flags */
{ "l0" }, /* output l_flags */
{ "l1" }, /* input l_flags */
{ "l2" }, /* user mode l_flags */
{ "o0" }, /* output o_flags */
{ "o1" }, /* input o_flags */
{ "o2" }, /* user mode o_flags */
{ 0 }
};
struct gettyflags gettyflags[] = {
{ "ht", 0 }, /* has tabs */
{ "nl", 1 }, /* has newline char */
{ "ep", 0 }, /* even parity */
{ "op", 0 }, /* odd parity */
{ "ap", 0 }, /* any parity */
{ "ec", 1 }, /* no echo */
{ "co", 0 }, /* console special */
{ "cb", 0 }, /* crt backspace */
{ "ck", 0 }, /* crt kill */
{ "ce", 0 }, /* crt erase */
{ "pe", 0 }, /* printer erase */
{ "rw", 1 }, /* don't use raw */
{ "xc", 1 }, /* don't ^X ctl chars */
{ "lc", 0 }, /* terminal las lower case */
{ "uc", 0 }, /* terminal has no lower case */
{ "ig", 0 }, /* ignore garbage */
{ "ps", 0 }, /* do port selector speed select */
{ "hc", 1 }, /* don't set hangup on close */
{ "ub", 0 }, /* unbuffered output */
{ "ab", 0 }, /* auto-baud detect with '\r' */
{ "dx", 0 }, /* set decctlq */
{ "np", 0 }, /* no parity at all (8bit chars) */
{ "mb", 0 }, /* do MDMBUF flow control */
{ 0 }
};

560
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/*-
* Copyright (c) 1980, 1993
* The Regents of the University of California. All rights reserved.
*
* 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.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 4. Neither the name of the University nor the names of its contributors
* 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.
*/
#ifndef lint
static char copyright[] =
"@(#) Copyright (c) 1980, 1993\n\
The Regents of the University of California. All rights reserved.\n";
#endif /* not lint */
#ifndef lint
/*static char sccsid[] = "from: @(#)main.c 8.1 (Berkeley) 6/20/93";*/
static char rcsid[] = "$Id: main.c,v 1.15 1995/08/13 04:08:27 cgd Exp $";
#endif /* not lint */
#include <sys/param.h>
#include <sys/stat.h>
#include <termios.h>
#include <sys/ioctl.h>
#include <sys/resource.h>
#include <sys/utsname.h>
#include <errno.h>
#include <signal.h>
#include <fcntl.h>
#include <time.h>
#include <ctype.h>
#include <fcntl.h>
#include <setjmp.h>
#include <signal.h>
#include <stdlib.h>
#include <string.h>
#include <syslog.h>
#include <time.h>
#include <unistd.h>
#include "gettytab.h"
#include "pathnames.h"
#include "extern.h"
/*
* Set the amount of running time that getty should accumulate
* before deciding that something is wrong and exit.
*/
#define GETTY_TIMEOUT 60 /* seconds */
struct termios tmode, omode;
int crmod, digit, lower, upper;
char hostname[MAXHOSTNAMELEN];
struct utsname kerninfo;
char name[16];
char dev[] = _PATH_DEV;
char ttyn[32];
char *portselector();
char *ttyname();
#define OBUFSIZ 128
#define TABBUFSIZ 512
char defent[TABBUFSIZ];
char tabent[TABBUFSIZ];
char *env[128];
char partab[] = {
0001,0201,0201,0001,0201,0001,0001,0201,
0202,0004,0003,0205,0005,0206,0201,0001,
0201,0001,0001,0201,0001,0201,0201,0001,
0001,0201,0201,0001,0201,0001,0001,0201,
0200,0000,0000,0200,0000,0200,0200,0000,
0000,0200,0200,0000,0200,0000,0000,0200,
0000,0200,0200,0000,0200,0000,0000,0200,
0200,0000,0000,0200,0000,0200,0200,0000,
0200,0000,0000,0200,0000,0200,0200,0000,
0000,0200,0200,0000,0200,0000,0000,0200,
0000,0200,0200,0000,0200,0000,0000,0200,
0200,0000,0000,0200,0000,0200,0200,0000,
0000,0200,0200,0000,0200,0000,0000,0200,
0200,0000,0000,0200,0000,0200,0200,0000,
0200,0000,0000,0200,0000,0200,0200,0000,
0000,0200,0200,0000,0200,0000,0000,0201
};
#define ERASE tmode.c_cc[VERASE]
#define KILL tmode.c_cc[VKILL]
#define EOT tmode.c_cc[VEOF]
jmp_buf timeout;
static void
dingdong()
{
alarm(0);
signal(SIGALRM, SIG_DFL);
longjmp(timeout, 1);
}
jmp_buf intrupt;
static void
interrupt()
{
signal(SIGINT, interrupt);
longjmp(intrupt, 1);
}
/*
* Action to take when getty is running too long.
*/
void
timeoverrun(signo)
int signo;
{
syslog(LOG_ERR, "getty exiting due to excessive running time\n");
exit(1);
}
static int getname __P((void));
static void oflush __P((void));
static void prompt __P((void));
static void putchr __P((int));
static void putf __P((char *));
static void putpad __P((char *));
static void puts __P((char *));
int
main(argc, argv)
int argc;
char *argv[];
{
extern char **environ;
char *tname;
long allflags;
int repcnt = 0, failopenlogged = 0;
struct rlimit limit;
signal(SIGINT, SIG_IGN);
/*
signal(SIGQUIT, SIG_DFL);
*/
openlog("getty", LOG_ODELAY|LOG_CONS|LOG_PID, LOG_AUTH);
gethostname(hostname, sizeof(hostname));
if (hostname[0] == '\0')
strcpy(hostname, "Amnesiac");
uname(&kerninfo);
/*
* Limit running time to deal with broken or dead lines.
*/
(void)signal(SIGXCPU, timeoverrun);
limit.rlim_max = RLIM_INFINITY;
limit.rlim_cur = GETTY_TIMEOUT;
(void)setrlimit(RLIMIT_CPU, &limit);
/*
* The following is a work around for vhangup interactions
* which cause great problems getting window systems started.
* If the tty line is "-", we do the old style getty presuming
* that the file descriptors are already set up for us.
* J. Gettys - MIT Project Athena.
*/
if (argc <= 2 || strcmp(argv[2], "-") == 0)
strcpy(ttyn, ttyname(0));
else {
int i;
strcpy(ttyn, dev);
strncat(ttyn, argv[2], sizeof(ttyn)-sizeof(dev));
if (strcmp(argv[0], "+") != 0) {
chown(ttyn, 0, 0);
chmod(ttyn, 0600);
revoke(ttyn);
/*
* Delay the open so DTR stays down long enough to be detected.
*/
sleep(2);
while ((i = open(ttyn, O_RDWR)) == -1) {
if ((repcnt % 10 == 0) &&
(errno != ENXIO || !failopenlogged)) {
syslog(LOG_ERR, "%s: %m", ttyn);
closelog();
failopenlogged = 1;
}
repcnt++;
sleep(60);
}
login_tty(i);
}
}
/* Start with default tty settings */
if (tcgetattr(0, &tmode) < 0) {
syslog(LOG_ERR, "%s: %m", ttyn);
exit(1);
}
omode = tmode;
gettable("default", defent);
gendefaults();
tname = "default";
if (argc > 1)
tname = argv[1];
for (;;) {
int off;
gettable(tname, tabent);
if (OPset || EPset || APset)
APset++, OPset++, EPset++;
setdefaults();
off = 0;
(void)tcflush(0, TCIOFLUSH); /* clear out the crap */
ioctl(0, FIONBIO, &off); /* turn off non-blocking mode */
ioctl(0, FIOASYNC, &off); /* ditto for async mode */
if (IS)
cfsetispeed(&tmode, IS);
else if (SP)
cfsetispeed(&tmode, SP);
if (OS)
cfsetospeed(&tmode, OS);
else if (SP)
cfsetospeed(&tmode, SP);
setflags(0);
setchars();
if (tcsetattr(0, TCSANOW, &tmode) < 0) {
syslog(LOG_ERR, "%s: %m", ttyn);
exit(1);
}
if (AB) {
extern char *autobaud();
tname = autobaud();
continue;
}
if (PS) {
tname = portselector();
continue;
}
if (CL && *CL)
putpad(CL);
edithost(HE);
if (IM && *IM)
putf(IM);
if (setjmp(timeout)) {
tmode.c_ispeed = tmode.c_ospeed = 0;
(void)tcsetattr(0, TCSANOW, &tmode);
exit(1);
}
if (TO) {
signal(SIGALRM, dingdong);
alarm(TO);
}
if (getname()) {
register int i;
oflush();
alarm(0);
signal(SIGALRM, SIG_DFL);
if (name[0] == '-') {
puts("user names may not start with '-'.");
continue;
}
if (!(upper || lower || digit))
continue;
setflags(2);
if (crmod) {
tmode.c_iflag |= ICRNL;
tmode.c_oflag |= ONLCR;
}
#if XXX
if (upper || UC)
tmode.sg_flags |= LCASE;
if (lower || LC)
tmode.sg_flags &= ~LCASE;
#endif
if (tcsetattr(0, TCSANOW, &tmode) < 0) {
syslog(LOG_ERR, "%s: %m", ttyn);
exit(1);
}
signal(SIGINT, SIG_DFL);
for (i = 0; environ[i] != (char *)0; i++)
env[i] = environ[i];
makeenv(&env[i]);
limit.rlim_max = RLIM_INFINITY;
limit.rlim_cur = RLIM_INFINITY;
(void)setrlimit(RLIMIT_CPU, &limit);
execle(LO, "login", "-p", name, (char *) 0, env);
syslog(LOG_ERR, "%s: %m", LO);
exit(1);
}
alarm(0);
signal(SIGALRM, SIG_DFL);
signal(SIGINT, SIG_IGN);
if (NX && *NX)
tname = NX;
}
}
static int
getname()
{
register int c;
register char *np;
char cs;
/*
* Interrupt may happen if we use CBREAK mode
*/
if (setjmp(intrupt)) {
signal(SIGINT, SIG_IGN);
return (0);
}
signal(SIGINT, interrupt);
setflags(1);
prompt();
if (PF > 0) {
oflush();
sleep(PF);
PF = 0;
}
if (tcsetattr(0, TCSANOW, &tmode) < 0) {
syslog(LOG_ERR, "%s: %m", ttyn);
exit(1);
}
crmod = digit = lower = upper = 0;
np = name;
for (;;) {
oflush();
if (read(STDIN_FILENO, &cs, 1) <= 0)
exit(0);
if ((c = cs&0177) == 0)
return (0);
if (c == EOT)
exit(1);
if (c == '\r' || c == '\n' || np >= &name[sizeof name]) {
putf("\r\n");
break;
}
if (islower(c))
lower = 1;
else if (isupper(c))
upper = 1;
else if (c == ERASE || c == '#' || c == '\b') {
if (np > name) {
np--;
if (cfgetospeed(&tmode) >= 1200)
puts("\b \b");
else
putchr(cs);
}
continue;
} else if (c == KILL || c == '@') {
putchr(cs);
putchr('\r');
if (cfgetospeed(&tmode) < 1200)
putchr('\n');
/* this is the way they do it down under ... */
else if (np > name)
puts(" \r");
prompt();
np = name;
continue;
} else if (isdigit(c))
digit++;
if (IG && (c <= ' ' || c > 0176))
continue;
*np++ = c;
putchr(cs);
}
signal(SIGINT, SIG_IGN);
*np = 0;
if (c == '\r')
crmod = 1;
if (upper && !lower && !LC || UC)
for (np = name; *np; np++)
if (isupper(*np))
*np = tolower(*np);
return (1);
}
static void
putpad(s)
register char *s;
{
register pad = 0;
speed_t ospeed = cfgetospeed(&tmode);
if (isdigit(*s)) {
while (isdigit(*s)) {
pad *= 10;
pad += *s++ - '0';
}
pad *= 10;
if (*s == '.' && isdigit(s[1])) {
pad += s[1] - '0';
s += 2;
}
}
puts(s);
/*
* If no delay needed, or output speed is
* not comprehensible, then don't try to delay.
*/
if (pad == 0 || ospeed <= 0)
return;
/*
* Round up by a half a character frame, and then do the delay.
* Too bad there are no user program accessible programmed delays.
* Transmitting pad characters slows many terminals down and also
* loads the system.
*/
pad = (pad * ospeed + 50000) / 100000;
while (pad--)
putchr(*PC);
}
static void
puts(s)
register char *s;
{
while (*s)
putchr(*s++);
}
char outbuf[OBUFSIZ];
int obufcnt = 0;
static void
putchr(cc)
int cc;
{
char c;
c = cc;
if (!NP) {
c |= partab[c&0177] & 0200;
if (OP)
c ^= 0200;
}
if (!UB) {
outbuf[obufcnt++] = c;
if (obufcnt >= OBUFSIZ)
oflush();
} else
write(STDOUT_FILENO, &c, 1);
}
static void
oflush()
{
if (obufcnt)
write(STDOUT_FILENO, outbuf, obufcnt);
obufcnt = 0;
}
static void
prompt()
{
putf(LM);
if (CO)
putchr('\n');
}
static void
putf(cp)
register char *cp;
{
extern char editedhost[];
time_t t;
char *slash, db[100];
while (*cp) {
if (*cp != '%') {
putchr(*cp++);
continue;
}
switch (*++cp) {
case 't':
slash = strrchr(ttyn, '/');
if (slash == (char *) 0)
puts(ttyn);
else
puts(&slash[1]);
break;
case 'h':
puts(editedhost);
break;
case 'd': {
static char fmt[] = "%l:% %p on %A, %d %B %Y";
fmt[4] = 'M'; /* I *hate* SCCS... */
(void)time(&t);
(void)strftime(db, sizeof(db), fmt, localtime(&t));
puts(db);
break;
case 's':
puts(kerninfo.sysname);
break;
case 'm':
puts(kerninfo.machine);
break;
case 'r':
puts(kerninfo.release);
break;
case 'v':
puts(kerninfo.version);
break;
}
case '%':
putchr('%');
break;
}
cp++;
}
}

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/*
* Copyright (c) 1989, 1993
* The Regents of the University of California. All rights reserved.
*
* 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.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 4. Neither the name of the University nor the names of its contributors
* 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.
*
* from: @(#)pathnames.h 8.1 (Berkeley) 6/4/93
* $Id: pathnames.h,v 1.3 1994/08/17 20:10:39 pk Exp $
*/
#include <paths.h>
#define _PATH_GETTYTAB "/etc/gettytab"
#define _PATH_LOGIN "/usr/bin/login"

726
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/*
* Copyright (c) 1983, 1993
* The Regents of the University of California. All rights reserved.
*
* 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.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 4. Neither the name of the University nor the names of its contributors
* 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.
*/
#ifndef lint
/*static char sccsid[] = "from: @(#)subr.c 8.1 (Berkeley) 6/4/93";*/
static char rcsid[] = "$Id: subr.c,v 1.18 1995/10/05 08:51:31 mycroft Exp $";
#endif /* not lint */
/*
* Melbourne getty.
*/
#define COMPAT_43
#include <stdlib.h>
#include <unistd.h>
#include <string.h>
#include <termios.h>
#include <sys/ioctl.h>
#include "gettytab.h"
#include "pathnames.h"
#include "extern.h"
extern struct termios tmode, omode;
static void compatflags __P((long));
/*
* Get a table entry.
*/
void
gettable(name, buf)
char *name, *buf;
{
register struct gettystrs *sp;
register struct gettynums *np;
register struct gettyflags *fp;
long n;
char *dba[2];
dba[0] = _PATH_GETTYTAB;
dba[1] = 0;
if (cgetent(&buf, dba, name) != 0)
return;
for (sp = gettystrs; sp->field; sp++)
cgetstr(buf, sp->field, &sp->value);
for (np = gettynums; np->field; np++) {
if (cgetnum(buf, np->field, &n) == -1)
np->set = 0;
else {
np->set = 1;
np->value = n;
}
}
for (fp = gettyflags; fp->field; fp++) {
if (cgetcap(buf, fp->field, ':') == NULL)
fp->set = 0;
else {
fp->set = 1;
fp->value = 1 ^ fp->invrt;
}
}
#ifdef DEBUG
printf("name=\"%s\", buf=\"%s\"\n", name, buf);
for (sp = gettystrs; sp->field; sp++)
printf("cgetstr: %s=%s\n", sp->field, sp->value);
for (np = gettynums; np->field; np++)
printf("cgetnum: %s=%d\n", np->field, np->value);
for (fp = gettyflags; fp->field; fp++)
printf("cgetflags: %s='%c' set='%c'\n", fp->field,
fp->value + '0', fp->set + '0');
exit(1);
#endif /* DEBUG */
}
void
gendefaults()
{
register struct gettystrs *sp;
register struct gettynums *np;
register struct gettyflags *fp;
for (sp = gettystrs; sp->field; sp++)
if (sp->value)
sp->defalt = sp->value;
for (np = gettynums; np->field; np++)
if (np->set)
np->defalt = np->value;
for (fp = gettyflags; fp->field; fp++)
if (fp->set)
fp->defalt = fp->value;
else
fp->defalt = fp->invrt;
}
void
setdefaults()
{
register struct gettystrs *sp;
register struct gettynums *np;
register struct gettyflags *fp;
for (sp = gettystrs; sp->field; sp++)
if (!sp->value)
sp->value = sp->defalt;
for (np = gettynums; np->field; np++)
if (!np->set)
np->value = np->defalt;
for (fp = gettyflags; fp->field; fp++)
if (!fp->set)
fp->value = fp->defalt;
}
static char **
charnames[] = {
&ER, &KL, &IN, &QU, &XN, &XF, &ET, &BK,
&SU, &DS, &RP, &FL, &WE, &LN, 0
};
static char *
charvars[] = {
&tmode.c_cc[VERASE], &tmode.c_cc[VKILL], &tmode.c_cc[VINTR],
&tmode.c_cc[VQUIT], &tmode.c_cc[VSTART], &tmode.c_cc[VSTOP],
&tmode.c_cc[VEOF], &tmode.c_cc[VEOL], &tmode.c_cc[VSUSP],
&tmode.c_cc[VDSUSP], &tmode.c_cc[VREPRINT], &tmode.c_cc[VDISCARD],
&tmode.c_cc[VWERASE], &tmode.c_cc[VLNEXT], 0
};
void
setchars()
{
register int i;
register char *p;
for (i = 0; charnames[i]; i++) {
p = *charnames[i];
if (p && *p)
*charvars[i] = *p;
else
*charvars[i] = _POSIX_VDISABLE;
}
}
/* Macros to clear/set/test flags. */
#define SET(t, f) (t) |= (f)
#define CLR(t, f) (t) &= ~(f)
#define ISSET(t, f) ((t) & (f))
void
setflags(n)
int n;
{
register tcflag_t iflag, oflag, cflag, lflag;
#ifdef COMPAT_43
switch (n) {
case 0:
if (F0set) {
compatflags(F0);
return;
}
break;
case 1:
if (F1set) {
compatflags(F1);
return;
}
break;
default:
if (F2set) {
compatflags(F2);
return;
}
break;
}
#endif
switch (n) {
case 0:
if (C0set && I0set && L0set && O0set) {
tmode.c_cflag = C0;
tmode.c_iflag = I0;
tmode.c_lflag = L0;
tmode.c_oflag = O0;
return;
}
break;
case 1:
if (C1set && I1set && L1set && O1set) {
tmode.c_cflag = C1;
tmode.c_iflag = I1;
tmode.c_lflag = L1;
tmode.c_oflag = O1;
return;
}
break;
default:
if (C2set && I2set && L2set && O2set) {
tmode.c_cflag = C2;
tmode.c_iflag = I2;
tmode.c_lflag = L2;
tmode.c_oflag = O2;
return;
}
break;
}
iflag = omode.c_iflag;
oflag = omode.c_oflag;
cflag = omode.c_cflag;
lflag = omode.c_lflag;
if (NP) {
CLR(cflag, CSIZE|PARENB);
SET(cflag, CS8);
CLR(iflag, ISTRIP|INPCK|IGNPAR);
} else if (AP || EP || OP) {
CLR(cflag, CSIZE);
SET(cflag, CS7|PARENB);
SET(iflag, ISTRIP);
if (OP && !EP) {
SET(iflag, INPCK|IGNPAR);
SET(cflag, PARODD);
if (AP)
CLR(iflag, INPCK);
} else if (EP && !OP) {
SET(iflag, INPCK|IGNPAR);
CLR(cflag, PARODD);
if (AP)
CLR(iflag, INPCK);
} else if (AP || EP && OP) {
CLR(iflag, INPCK|IGNPAR);
CLR(cflag, PARODD);
}
} /* else, leave as is */
#if 0
if (UC)
f |= LCASE;
#endif
if (HC)
SET(cflag, HUPCL);
else
CLR(cflag, HUPCL);
if (MB)
SET(cflag, MDMBUF);
else
CLR(cflag, MDMBUF);
if (NL) {
SET(iflag, ICRNL);
SET(oflag, ONLCR|OPOST);
} else {
CLR(iflag, ICRNL);
CLR(oflag, ONLCR);
}
if (!HT)
SET(oflag, OXTABS|OPOST);
else
CLR(oflag, OXTABS);
#ifdef XXX_DELAY
SET(f, delaybits());
#endif
if (n == 1) { /* read mode flags */
if (RW) {
iflag = 0;
CLR(oflag, OPOST);
CLR(cflag, CSIZE|PARENB);
SET(cflag, CS8);
lflag = 0;
} else {
CLR(lflag, ICANON);
}
goto out;
}
if (n == 0)
goto out;
#if 0
if (CB)
SET(f, CRTBS);
#endif
if (CE)
SET(lflag, ECHOE);
else
CLR(lflag, ECHOE);
if (CK)
SET(lflag, ECHOKE);
else
CLR(lflag, ECHOKE);
if (PE)
SET(lflag, ECHOPRT);
else
CLR(lflag, ECHOPRT);
if (EC)
SET(lflag, ECHO);
else
CLR(lflag, ECHO);
if (XC)
SET(lflag, ECHOCTL);
else
CLR(lflag, ECHOCTL);
if (DX)
SET(lflag, IXANY);
else
CLR(lflag, IXANY);
out:
tmode.c_iflag = iflag;
tmode.c_oflag = oflag;
tmode.c_cflag = cflag;
tmode.c_lflag = lflag;
}
#ifdef COMPAT_43
/*
* Old TTY => termios, snatched from <sys/kern/tty_compat.c>
*/
void
compatflags(flags)
register long flags;
{
register tcflag_t iflag, oflag, cflag, lflag;
iflag = BRKINT|ICRNL|IMAXBEL|IXON|IXANY;
oflag = OPOST|ONLCR|OXTABS;
cflag = CREAD;
lflag = ICANON|ISIG|IEXTEN;
if (ISSET(flags, TANDEM))
SET(iflag, IXOFF);
else
CLR(iflag, IXOFF);
if (ISSET(flags, ECHO))
SET(lflag, ECHO);
else
CLR(lflag, ECHO);
if (ISSET(flags, CRMOD)) {
SET(iflag, ICRNL);
SET(oflag, ONLCR);
} else {
CLR(iflag, ICRNL);
CLR(oflag, ONLCR);
}
if (ISSET(flags, XTABS))
SET(oflag, OXTABS);
else
CLR(oflag, OXTABS);
if (ISSET(flags, RAW)) {
iflag &= IXOFF;
CLR(lflag, ISIG|ICANON|IEXTEN);
CLR(cflag, PARENB);
} else {
SET(iflag, BRKINT|IXON|IMAXBEL);
SET(lflag, ISIG|IEXTEN);
if (ISSET(flags, CBREAK))
CLR(lflag, ICANON);
else
SET(lflag, ICANON);
switch (ISSET(flags, ANYP)) {
case 0:
CLR(cflag, PARENB);
break;
case ANYP:
SET(cflag, PARENB);
CLR(iflag, INPCK);
break;
case EVENP:
SET(cflag, PARENB);
SET(iflag, INPCK);
CLR(cflag, PARODD);
break;
case ODDP:
SET(cflag, PARENB);
SET(iflag, INPCK);
SET(cflag, PARODD);
break;
}
}
/* Nothing we can do with CRTBS. */
if (ISSET(flags, PRTERA))
SET(lflag, ECHOPRT);
else
CLR(lflag, ECHOPRT);
if (ISSET(flags, CRTERA))
SET(lflag, ECHOE);
else
CLR(lflag, ECHOE);
/* Nothing we can do with TILDE. */
if (ISSET(flags, MDMBUF))
SET(cflag, MDMBUF);
else
CLR(cflag, MDMBUF);
if (ISSET(flags, NOHANG))
CLR(cflag, HUPCL);
else
SET(cflag, HUPCL);
if (ISSET(flags, CRTKIL))
SET(lflag, ECHOKE);
else
CLR(lflag, ECHOKE);
if (ISSET(flags, CTLECH))
SET(lflag, ECHOCTL);
else
CLR(lflag, ECHOCTL);
if (!ISSET(flags, DECCTQ))
SET(iflag, IXANY);
else
CLR(iflag, IXANY);
CLR(lflag, TOSTOP|FLUSHO|PENDIN|NOFLSH);
SET(lflag, ISSET(flags, TOSTOP|FLUSHO|PENDIN|NOFLSH));
if (ISSET(flags, RAW|LITOUT|PASS8)) {
CLR(cflag, CSIZE);
SET(cflag, CS8);
if (!ISSET(flags, RAW|PASS8))
SET(iflag, ISTRIP);
else
CLR(iflag, ISTRIP);
if (!ISSET(flags, RAW|LITOUT))
SET(oflag, OPOST);
else
CLR(oflag, OPOST);
} else {
CLR(cflag, CSIZE);
SET(cflag, CS7);
SET(iflag, ISTRIP);
SET(oflag, OPOST);
}
tmode.c_iflag = iflag;
tmode.c_oflag = oflag;
tmode.c_cflag = cflag;
tmode.c_lflag = lflag;
}
#endif
#ifdef XXX_DELAY
struct delayval {
unsigned delay; /* delay in ms */
int bits;
};
/*
* below are random guesses, I can't be bothered checking
*/
struct delayval crdelay[] = {
{ 1, CR1 },
{ 2, CR2 },
{ 3, CR3 },
{ 83, CR1 },
{ 166, CR2 },
{ 0, CR3 },
};
struct delayval nldelay[] = {
{ 1, NL1 }, /* special, calculated */
{ 2, NL2 },
{ 3, NL3 },
{ 100, NL2 },
{ 0, NL3 },
};
struct delayval bsdelay[] = {
{ 1, BS1 },
{ 0, 0 },
};
struct delayval ffdelay[] = {
{ 1, FF1 },
{ 1750, FF1 },
{ 0, FF1 },
};
struct delayval tbdelay[] = {
{ 1, TAB1 },
{ 2, TAB2 },
{ 3, XTABS }, /* this is expand tabs */
{ 100, TAB1 },
{ 0, TAB2 },
};
int
delaybits()
{
register int f;
f = adelay(CD, crdelay);
f |= adelay(ND, nldelay);
f |= adelay(FD, ffdelay);
f |= adelay(TD, tbdelay);
f |= adelay(BD, bsdelay);
return (f);
}
int
adelay(ms, dp)
register ms;
register struct delayval *dp;
{
if (ms == 0)
return (0);
while (dp->delay && ms > dp->delay)
dp++;
return (dp->bits);
}
#endif
char editedhost[32];
void
edithost(pat)
register char *pat;
{
register char *host = HN;
register char *res = editedhost;
if (!pat)
pat = "";
while (*pat) {
switch (*pat) {
case '#':
if (*host)
host++;
break;
case '@':
if (*host)
*res++ = *host++;
break;
default:
*res++ = *pat;
break;
}
if (res == &editedhost[sizeof editedhost - 1]) {
*res = '\0';
return;
}
pat++;
}
if (*host)
strncpy(res, host, sizeof editedhost - (res - editedhost) - 1);
else
*res = '\0';
editedhost[sizeof editedhost - 1] = '\0';
}
void
makeenv(env)
char *env[];
{
static char termbuf[128] = "TERM=";
register char *p, *q;
register char **ep;
ep = env;
if (TT && *TT) {
strcat(termbuf, TT);
*ep++ = termbuf;
}
if (p = EV) {
q = p;
while (q = strchr(q, ',')) {
*q++ = '\0';
*ep++ = p;
p = q;
}
if (*p)
*ep++ = p;
}
*ep = (char *)0;
}
/*
* This speed select mechanism is written for the Develcon DATASWITCH.
* The Develcon sends a string of the form "B{speed}\n" at a predefined
* baud rate. This string indicates the user's actual speed.
* The routine below returns the terminal type mapped from derived speed.
*/
struct portselect {
char *ps_baud;
char *ps_type;
} portspeeds[] = {
{ "B110", "std.110" },
{ "B134", "std.134" },
{ "B150", "std.150" },
{ "B300", "std.300" },
{ "B600", "std.600" },
{ "B1200", "std.1200" },
{ "B2400", "std.2400" },
{ "B4800", "std.4800" },
{ "B9600", "std.9600" },
{ "B19200", "std.19200" },
{ 0 }
};
char *
portselector()
{
char c, baud[20], *type = "default";
register struct portselect *ps;
int len;
alarm(5*60);
for (len = 0; len < sizeof (baud) - 1; len++) {
if (read(STDIN_FILENO, &c, 1) <= 0)
break;
c &= 0177;
if (c == '\n' || c == '\r')
break;
if (c == 'B')
len = 0; /* in case of leading garbage */
baud[len] = c;
}
baud[len] = '\0';
for (ps = portspeeds; ps->ps_baud; ps++)
if (strcmp(ps->ps_baud, baud) == 0) {
type = ps->ps_type;
break;
}
sleep(2); /* wait for connection to complete */
return (type);
}
/*
* This auto-baud speed select mechanism is written for the Micom 600
* portselector. Selection is done by looking at how the character '\r'
* is garbled at the different speeds.
*/
#include <sys/time.h>
char *
autobaud()
{
int rfds;
struct timeval timeout;
char c, *type = "9600-baud";
(void)tcflush(0, TCIOFLUSH);
rfds = 1 << 0;
timeout.tv_sec = 5;
timeout.tv_usec = 0;
if (select(32, (fd_set *)&rfds, (fd_set *)NULL,
(fd_set *)NULL, &timeout) <= 0)
return (type);
if (read(STDIN_FILENO, &c, sizeof(char)) != sizeof(char))
return (type);
timeout.tv_sec = 0;
timeout.tv_usec = 20;
(void) select(32, (fd_set *)NULL, (fd_set *)NULL,
(fd_set *)NULL, &timeout);
(void)tcflush(0, TCIOFLUSH);
switch (c & 0377) {
case 0200: /* 300-baud */
type = "300-baud";
break;
case 0346: /* 1200-baud */
type = "1200-baud";
break;
case 015: /* 2400-baud */
case 0215:
type = "2400-baud";
break;
default: /* 4800-baud */
type = "4800-baud";
break;
case 0377: /* 9600-baud */
type = "9600-baud";
break;
}
return (type);
}

153
libexec/getty/ttys.5 Normal file
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@ -0,0 +1,153 @@
.\" Copyright (c) 1985, 1991, 1993
.\" The Regents of the University of California. All rights reserved.
.\"
.\" 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.
.\" 3. All advertising materials mentioning features or use of this software
.\" must display the following acknowledgement:
.\" This product includes software developed by the University of
.\" California, Berkeley and its contributors.
.\" 4. Neither the name of the University nor the names of its contributors
.\" 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.
.\"
.\" from: @(#)ttys.5 8.1 (Berkeley) 6/4/93
.\" $Id: ttys.5,v 1.6 1994/08/17 20:10:41 pk Exp $
.\"
.Dd June 4, 1993
.Dt TTYS 5
.Os
.Sh NAME
.Nm ttys
.Nd terminal initialization information
.Sh DESCRIPTION
The file
.Nm ttys
contains information that is used by various routines to initialize
and control the use of terminal special files.
This information is read with the
.Xr getttyent 3
library routines.
There is one line in the
.Nm ttys
file per special device file.
Fields are separated by tabs and/or spaces.
Fields comprised of more than one word should be enclosed in double
quotes (``"'').
Blank lines and comments may appear anywhere in the file; comments
are delimited by hash marks (``#'') and new lines.
Any unspecified fields will default to null.
.Pp
The first field is the
name of the terminal special file as it is found in
.Pa /dev .
.Pp
The second field of the file is the command to execute for the line,
usually
.Xr getty 8 ,
which initializes and opens the line, setting the speed, waiting for
a user name and executing the
.Xr login 1
program.
It can be, however, any desired command, for example
the start up for a window system terminal emulator or some other
daemon process, and can contain multiple words if quoted.
.Pp
The third field is the type of terminal usually connected to that
tty line, normally the one found in the
.Xr termcap 5
data base file.
The environment variable
.Dv TERM
is initialized with the value by
either
.Xr getty 8
or
.Xr login 1 .
.Pp
The remaining fields set flags in the
.Fa ty_status
entry (see
.Xr getttyent 3 )
or specify a window system process that
.Xr init 8
will maintain for the terminal line.
.Pp
As flag values, the strings ``on'' and ``off'' specify that
.Xr init
should (should not) execute the command given in the second field,
while ``secure'' (if ``on'' is also specified) allows users with a
uid of 0 to login on
this line.
The flags ``local'', ``rtscts'', ``mdmbuf'', and ``softcar''
modify the default behaviour of the terminal line, and their actions
are driver dependent.
The ``local'' flag causes the driver to
treat the line as if it locally connected.
The ``rtscts'' flag
instructs the driver to use RTS/CTS hardware flow control, if
possible.
The ``mdmbuf'' flag instructs the driver to use
DTR/DCD flow control, if possible.
The ``softcar'' flag causes the driver to ignore
hardware carrier on the line.
These flag fields should not be quoted.
.Pp
The string ``window='' may be followed by a quoted command
string which
.Xr init
will execute
.Em before
starting the command specified by the second field.
.Sh EXAMPLES
.Bd -literal
# root login on console at 1200 baud
console "/usr/libexec/getty std.1200" vt100 on secure
# dialup at 1200 baud, no root logins
ttyd0 "/usr/libexec/getty d1200" dialup on # 555-1234
# Mike's terminal: hp2621
ttyh0 "/usr/libexec/getty std.9600" hp2621-nl on # 457 Evans
# John's terminal: vt100
ttyh1 "/usr/libexec/getty std.9600" vt100 on # 459 Evans
# terminal emulate/window system
ttyv0 "/usr/new/xterm -L :0" vs100 on window="/usr/new/Xvs100 0"
# Network pseudo ttys -- don't enable getty
ttyp0 none network
ttyp1 none network off
.Ed
.Sh FILES
.Bl -tag -width /etc/ttys -compact
.It Pa /etc/ttys
.El
.Sh SEE ALSO
.Xr login 1 ,
.Xr getttyent 3 ,
.Xr ttyslot 3 ,
.Xr gettytab 5 ,
.Xr termcap 5 ,
.Xr getty 8 ,
.Xr init 8 ,
.Xr ttyflags 8
.Sh HISTORY
A
.Nm
file appeared in
.At v6 .