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.\" $OpenBSD: mset.1,v 1.10 2003/06/10 09:12:12 jmc Exp $
.\" Copyright (c) 1986, 1990 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. 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: @(#)mset.1 4.6 (Berkeley) 7/27/91
.\"
.Dd July 27, 1991
.Dt MSET 1
.Os
.Sh NAME
.Nm mset
.Nd retrieve
.Tn ASCII
to
.Tn IBM
3270 keyboard map
.Sh SYNOPSIS
.Nm mset
.Op Fl picky
.Op Fl shell
.Op Ar keyboardname
.Sh DESCRIPTION
.Nm Mset
retrieves mapping information
for the
.Tn ASCII
keyboard to
.Tn IBM
3270 terminal
special functions.
Normally, these mappings are found
in
.Pa /usr/share/misc/map3270
(see
.Xr map3270 5 ) .
This information is used by the
.Xr tn3270
command (see
.Xr tn3270 1 ) .
.Pp
The default
.Nm mset
output can be used to store the mapping information in the process environment
in order to avoid scanning
.Pa map3270
each time
.Nm tn3270
is invoked.
To do this, place the following command in your
.Pa .login
file:
.Bd -literal -offset indent
set noglob; setenv MAP3270 "\(gamset\(ga"; unset noglob
.Ed
.Pp
If the
.Ar keyboardname
argument is not supplied,
.Nm mset
attempts to determine the name of the keyboard the user is using,
by checking the
.Ev KEYBD
environment variable.
If the
.Ev KEYBD
environment variable is not set, then
.Nm mset
uses the user's terminal type from the environment variable
.Ev TERM
as the keyboard name.
Normally,
.Nm mset
then uses the file
.Xr map3270 5
to find the keyboard mapping for that terminal.
However, if the environment variable
.Ev MAP3270
exists and contains the entry for the specified keyboard, then that
definition is used.
If the value of
.Ev MAP3270
begins with a slash (`/') then it is assumed to be the full pathname
of an alternate mapping file and that file is searched first.
In any case, if the mapping for the keyboard is not found in
the environment, nor in an alternate map file, nor in the standard map file,
then the same search is performed for an entry for a keyboard with the name
.Ar unknown .
If that search also fails,
then a default mapping
is used.
.Pp
The arguments to
.Nm mset
are:
.Bl -tag -width Fl
.It Fl picky
When processing the various
.Pa map3270
entries (for the user's keyboard,
and all those encountered before the one for the user's keyboard),
.Nm mset
normally will not complain about entries for unknown functions (like
.Dq PFX1 ) ;
the
.Fl picky
argument causes
.Nm mset
to issue warning messages about these unknown entries.
.It Fl shell
If the
.Pa map3270
entry is longer than the shell's 1024 environment variable
length limit, the default
.Nm mset
output cannot be used to store the mapping information in the process
environment to avoid scanning
.Pa map3270
each time
.Nm tn3270
is invoked.
The
.Fl shell
argument causes
.Nm mset
to generate shell commands to set the environment variables
.Ev MAP3270 ,
.Ev MAP3270A ,
and so on, breaking up the entry to fit within the shell environment
variable length limit.
To set these variables, place the following command in your
.Pa .login
file:
.Bd -literal -offset indent
mset -shell > tmp ; source tmp ; /bin/rm tmp
.Ed
.It Ar keyboardname
When searching for the
.Pa map3270
entry that matches the user's keyboard,
.Nm mset
will use
.Ar keyboardname
instead of determining the keyboard name from the
.Ev KEYBD
or
.Ev TERM
environment variables.
.El
.Sh FILES
.Bl -tag -width /usr/share/misc/map3270 -compact
.It Pa /usr/share/misc/map3270
keyboard mapping for known keyboards
.El
.Sh SEE ALSO
.Xr tn3270 1 ,
.Xr map3270 5
.Sh HISTORY
The
.Nm mset
command appeared in
.Bx 4.3 .
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