dm.conf.5

早期freebsd实现

.\" Copyright (c) 1988, 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.
.\"
.\"     @(#)dm.conf.5	8.1 (Berkeley) 5/31/93
.\"
.Dd May 31, 1993
.Dt DM.CONF 5
.Os BSD 4.2
.Sh NAME
.Nm dm.conf
.Nd \&dm configuration file
.Sh DESCRIPTION
The
.Xr dm.conf
file
is the configuration file for the
.Xr \&dm 8
program.
It consists of lines beginning with one of three keywords, ``badtty'',
``game'', and ``time''.  All other lines are ignored.
.Pp
Any tty listed after the keyword ``badtty'' may not have games played on
it.
Entries consist of two white-space separated fields: the string
``badtty'' and the ttyname as returned by
.Xr ttyname 3 .
For example,
to keep the uucp dialout, ``tty19'', from being used for games, the
entry would be:
.Bd -literal -offset indent
badtty	/dev/tty19
.Ed
.Pp
Any day/hour combination listed after the keyword ``time'' will disallow
games during those hours.  Entries consist of four white-space separated
fields: the string ``time'', the unabbreviated day of the week and the
beginning and ending time of a period of the day when games may not be
played.  The time fields are in a 0 based, 24-hour clock.  For example,
the following entry allows games playing before 8AM and after 5PM on
Mondays.
.Bd -literal -offset indent
time		Monday	8	17
.Ed
.Pp
Any game listed after the keyword ``game'' will set parameters for a specific
game.  Entries consist of five white-space separated fields: the keyword
``game'', the name of a game, the highest system load average at which the
game may be played, the maximum users allowed if the game is to be played,
and the priority at which the game is to be run.  Any of these fields may
start with a non-numeric character, resulting in no game limitation or
priority based on that field.  The game "default" controls the settings for
any game not otherwise listed, and must be the last ``game'' entry in the
file.  Priorities may not be negative.  For example, the following entries
limits the game ``hack'' to running only when the system has 10 or less
users and a load average of 5 or less; all other games may be run any time
the system has 15 or less users.
.Bd -literal -offset indent
game		hack		5	10	*
game		default	*	15	*
.Ed
.Sh FILES
.Bl -tag -width /etc/dm.conf -compact
.It Pa /etc/dm.conf
The
.Xr \&dm 8
configuration file.
.El
.Sh SEE ALSO
.Xr setpriority 2 ,
.Xr ttyname 3 ,
.Xr dm 8