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#!@PREFIX@/bin/perl -w
#
# $NetBSD: if-psprint.pl,v 1.2 2000/10/17 11:12:37 abs Exp $
#
# Copyright (c) 2000 David Brownlee <abs@netbsd.org>. All rights
# reserved. Provided as-is without express or implied warranties.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided the above copyright and this
# notice is retained.
#
=head1 Overview
if-psprint will ssend text, postscript, or native printer language to an
arbitrary printer.
Designed as a quick fix for the random printers that get hooked up to
the NetBSD server and random Windows boxes around the office. Uses enscript
to convert text to postscript, and ghostcript to convert to native printer
language as required.
=head1 Details
=over 4
=item *
Overloads 'af' entry to contain printer type, and optional location.
in the form 'type[.model][/smb/smb_dest]'. Use type 'ps' for no gs filter.
=item *
Reads first 1k and calls 'file' to determine filetype.
=item *
Builds a spool command based on filetype:
=over 4
=item *
If text and not postscript, use enscript text->postscript
=item *
If enscripted or postscript, use gs postscript->printer_format
=item *
Otherwise assumed to be native printer language (its your rope)
=back
=item *
Open pipe to spool command, send first 1k, then rest of data
=item *
requires ghostscript, enscript, and samba if printing to smb hosts
=back
=head1 Sample printcap entries
(Remember to create spool dir [sd])
=over 4
=item *
HP deskjet named 'leaves' connected to smb host 'tea'.
(using ghostscript 'hpdj' driver model 'unspec')
leaves:\
:if=@PREFIX@/libexec/if-psprint:lf=/var/log/lpd-errs:\
:sh:mx=0:lp=/dev/null:sd=/var/spool/lpd/leaves:\
:af=hpdj.unspec/smb/tea/leaves:
=item *
Canon bubblejet connected to /dev/lpa0 (using gs 'bjc800' driver)
bubbly:\
:if=@PREFIX@/libexec/if-psprint:lf=/var/log/lpd-errs:\
:sh:mx=0:lp=/dev/lpa0:sd=/var/spool/lpd/bubbly:\
:af=bjc800:
=back
=cut
$ENV{'PATH'}="@PREFIX@/bin:/usr/bin:/bin";
use strict;
use Getopt::Std;
use IPC::Open3;
my( $user,
$dest,
$spoolhost,
$device,
$model,
%opt,
);
# Parse options (ignore most)
#
&getopt('w:l:i:n:h:', \%opt);
$user = $opt{'n'};
$user ||= $ENV{'USER'};
$spoolhost = $opt{'h'};
if (!$spoolhost)
{ chomp($spoolhost = `hostname`); }
if (@ARGV != 1 || $ARGV[0] !~ m#(\w+)(\.(\w+)|)(/smb/.*/.*|)#)
{ &usage_and_exit; }
$device = $1;
$model = $3;
$dest = $4;
if ($dest)
{ $dest =~ s#/smb/#smb:/#; }
# Determine filetype
#
my($data, $filetype);
if (!read(STDIN, $data, 1024)) # initial filetype check data
{ &fail("No data to print"); }
$filetype = &filetype($data);
# Generate spool command
#
my($spool);
$spool = '';
if ($filetype =~ /^PostScript/ || $filetype =~ /text/)
{
if ($filetype !~ /^PostScript/)
{ $spool .= '|'.filter_enscript(); }
if ($model || $device ne 'ps')
{ $spool .= '|'.filter_gs($device, $model); }
}
if ($dest)
{ $spool .= "|smbspool smb://$dest 1 $user $spoolhost 1 -"; }
if ($spool eq '')
{ $spool = '>&STDOUT'; }
# Spool output
#
if (!open(OUTPUT, $spool))
{ &fail("Unable to run '$spool': $!"); }
print OUTPUT $data; # print initial filetype check data
while (read(STDIN, $data, 16*1024))
{ print OUTPUT $data; }
close(STDIN);
close(OUTPUT);
exit;
sub fail
{
print STDERR "if-psprint: @_\n";
exit 1;
}
sub filetype
{
my($data) = @_;
my($pid, $filetype);
unless ($pid = open3('WTRFH', 'RDRFH', 'ERRFH', 'file -b -'))
{ &fail("Unable to run 'file': $!"); }
print WTRFH $data;
close(WTRFH);
close(ERRFH);
0 && close(ERRFH); # Pacify perl's -w
chop($filetype = <RDRFH>);
close(RDRFH);
wait;
$filetype;
}
sub filter_enscript
{
my($filter);
$filter = "enscript -q -B -p -";
}
sub filter_gs
{
my($device, $model) = @_;
my($filter);
$filter = "gs -q -dBATCH -sDEVICE=$device";
if (defined $model)
{ $filter .= " -sModel=$model"; }
$filter .= " -SOutputFile=- -";
}
sub usage_and_exit
{
print "Usage: if-psprint [opts] gs_device[.gs_model]/smbdestination
[opts]
-w width
-l lines
-i indent
-n user
-h host
";
exit 1;
}
|
