111 lines
3.8 KiB
Groff
111 lines
3.8 KiB
Groff
.\" $NetBSD: ttyaction.3,v 1.7 1998/02/05 18:52:32 perry Exp $
|
|
.\"
|
|
.\" Copyright (c) 1996 The NetBSD Foundation, Inc.
|
|
.\" All rights reserved.
|
|
.\"
|
|
.\" This code is derived from software contributed to The NetBSD Foundation
|
|
.\" by Gordon W. Ross.
|
|
.\"
|
|
.\" 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 NetBSD
|
|
.\" Foundation, Inc. and its contributors.
|
|
.\" 4. Neither the name of The NetBSD Foundation 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 NETBSD FOUNDATION, INC. 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 FOUNDATION 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.
|
|
.\"
|
|
.Dd August 24, 1996
|
|
.Dt TTYACTION 3
|
|
.Os
|
|
.Sh NAME
|
|
.Nm ttyaction
|
|
.Nd ttyaction utility function
|
|
.Sh LIBRARY
|
|
.Lb libutil
|
|
.Sh SYNOPSIS
|
|
.Fd #include <util.h>
|
|
.Ft int
|
|
.Fn ttyaction "char *ttyname" "char *action" "char *username"
|
|
.Sh DESCRIPTION
|
|
The
|
|
.Fn ttyaction
|
|
function is used by
|
|
.Xr login 1
|
|
and
|
|
.Xr getty 8
|
|
to execute site-specific commands
|
|
when a login session begins and ends.
|
|
.Pp
|
|
The
|
|
.Fn ttyaction
|
|
function scans the
|
|
.Pa /etc/ttyaction
|
|
file for any records that match the current
|
|
.Fa ttyname
|
|
and
|
|
.Fa action
|
|
parameters, and for each matching record, runs the shell command
|
|
shown in that record. The record format is described in
|
|
.Xr ttyaction 5 .
|
|
The parameter
|
|
.Fa username
|
|
is the name of the new owner of the
|
|
.Fa ttyname
|
|
device. Note that the
|
|
.Fa ttyname
|
|
parameter may be passed as a fully qualified pathname, and the
|
|
.Fn ttyaction
|
|
function will skip the leading "/dev/" part of the string.
|
|
(This is a convenience for login and getty.)
|
|
.Sh RETURN VALUES
|
|
.Fn ttyaction
|
|
returns the status of the last command it executed,
|
|
or zero if no matching commands were found.
|
|
.Sh FILES
|
|
.Bl -tag -width /etc/ttyaction -compact
|
|
.It Pa /dev/\(**
|
|
.It Pa /etc/ttyaction
|
|
.El
|
|
.Sh SEE ALSO
|
|
.Xr ttyaction 5
|
|
.Sh AUTHORS
|
|
The following people contributed to this design:
|
|
.Bd -literal -offset indent
|
|
Gordon W. Ross <gwr@netbsd.org>
|
|
Chris G. Demetriou <cgd@netbsd.org>
|
|
Ty Sarna <tsarna@endicor.com>
|
|
.Ed
|
|
.Sh BUGS
|
|
There should be some
|
|
.Em other
|
|
mechanism to allow selection of different access control policies
|
|
on a per-line basis. It has been suggested that the same
|
|
.Nm ttyaction
|
|
mechanism should also be used for determining access control, but
|
|
it was decided (after much discussion) that
|
|
.Nm ttyaction
|
|
should only describe actions to be performed
|
|
.Em after
|
|
the system has decided to change the ownership of some tty.
|
|
Access control policies will be handled by a separate mechanism.
|