magicfilter 1.2-65 / usr / sbin / magicfilterconfig

#!/usr/bin/perl -w
# -*- cperl -*-

# Public Domain.
# David Frey

use strict;
no strict "vars";

my $printcap="/etc/printcap";
my $filterdir="/etc/magicfilter";
my $force=0;
my $m=0;

if ($#ARGV >= 0) {
  $force=($ARGV[0] eq "--force"); if ($force) { $m++; }
}

if ($m <= $#ARGV) { $printcap=$ARGV[$m]; }

sub input()
{
  my($message)=$_[0];
  my($defanswer)=$_[1];
  my($reply);

  printf "%-45s [%-15s]: ",$message,$defanswer;
  $reply=<STDIN>; chop($reply); if ($reply eq "") { $reply=$defanswer; }

  return $reply;
}

sub yninput()
{
  my($message)=$_[0];
  my($defanswer)=$_[1];
  my($reply);

  printf "%s? (y/n) [%s]: ",$message,$defanswer;
  $reply=<STDIN>; chop($reply); if ($reply eq "") { $reply=$defanswer; }

  return $reply;
}

sub readfilters()
{
  my($i);

  if ( ! -e $filterdir ) {
    print<<EOT;

The magicfilter package is wrongly installed; can\'t find $filterdir.

EOT

    die "'$filterdir' missing, stopped";
  }

  open(FILTERS, "ls $filterdir/*-filter|sort|") || die "Can't find $filters.";
  $i=0;
  while (<FILTERS>) {
    chop;
    s/$filterdir\/(.*)-filter/$1/g;
    $filters[$i]=$_; $i++;
  }
  close(FILTERS);

  foreach $entry (@filters) { $entry =~ s/-filter//g; }
  return sort(@filters);
}

@filters=&readfilters;

$ok="no"; $m=-1; $d=0;
while ($ok !~ /y(es)?/) {
  print<<EOT;

You will have to supply the following items for each printer to be installed
(example values in parentheses):

 - its short name and its full name            (hpjlet4, HP LaserJet 4)
 - the device where the printer is attached    (/dev/lp0)
 - and the input filter you want to use        (ljet4l)

EOT

  $p=-1;
  do {
    $p++; $m++; $full[$m+1]='done';

    if ($p == 0) { $full[$p]='HP Laserjet 4L'; }
    else         { $full[$p]='done'; }

    $short[$p]='hplj4l';
    $dev[$p]=sprintf("/dev/lp%d",$p+1); $ifilter[$p]='ljet4l';
    $lpflags[$p]=""; $remflags[$p]=""; $serflags[$p]="";

    printf "Printer #%d:\n", $p+1;
    printf "------------\n";

    $full[$p]=&input("Full name, `done' when done", $full[$p]);

    if ($full[$p] !~ /done\s*/) {
      $short[$p]=&input("Short name, name of the spool directory",$short[$p]);
      $dev[$p]  =&input("Full device path (or remote machine name)",
			$dev[$p]);

      if ($#filters == 0) {
        print "There aren't any filters."; $full[$p]='done';
      } else {
	print<<EOT;

The following filters are available in /etc/magicfilter.

You can read the comments at the top of each file to help decide which
filter would best suit your needs.

The filters concentrate on the printer language. If you know, that your
printer uses a given printer language (e.g. ESC/P2 or PCL5) and your
printer is not listed below, you can use another filter which uses same
language.

Read the file `/usr/share/doc/gs-gpl/Devices.htm' from the GhostScript package
and have your printer manual handy if you want to change a filter.

EOT
	$l=0;
	foreach $filter (@filters) {
	  $l += (length($filter)+1);
	  if ($l > 72-length($filter)) { print "\n"; $l=0; }
	  print "$filter ";
	}
        print "\n\n";

        $ifilter[$p]=&input("The input filter to be used", $ifilter[$p]);

        if ($dev[$p] !~ /\/dev\//) {
	  $remflags[$p]=":rm=$dev[$p]:rp=$short[$p]:lpr_bounce"; $dev[$p]="";
	} elsif ($dev[$p] =~ /\/dev\/ttyS/) {
	  $serflags[$p]=":bf=2400:fc=0:fs=1";
	} else {
          $lpflags[$p]="lp=$dev[$p]:";
        }

        $spooldir[$p]="/var/spool/lpd/$short[$p]";

        print "\n";
      }
    }
  } while ($full[$p] !~ /done\s*/);

  if ($p > 0) {
    if ($p == 1) { $d=0; }
    do {
      format top=

                       Printer configuration

Default printer (alias `lp') is marked with an asterisk.

Printer name  Short name Spool dir            Device     Input filter
-------------------------------------------------------------------------------
.

    format STDOUT=
@<<<<<<<<<<<< @<<<<<<<<< @<<<<<<<<<<<<<<<<<<< @<<<<<<<<< @<<<<<<<<<<<<<<<<<<@<<
$full,        $short,    $spooldir,           $dev,      $ifilter,          $a
.

      for($i=0;$i<$p;$i++) {
        $full=$full[$i]; $short=$short[$i];
        $spooldir=$spooldir[$i]; $dev=$dev[$i]; $ifilter=$ifilter[$i];
	$a= ($remflags[$i] ne "") ? "R" : "";
        $a= $a . (($i == $d) ? "*" : "");

        write;
      }
      $ans="n"; $-=0;

      print "\n";
      if ($p > 1) {
        $ans=&yninput("Do you want to change the default printer","n");
        if ($ans =~ /y(es)?/) {
          $def=&input("New default printer (type its short name)","");
          $d=0;
          while (($d < $p) && ($short[$d] !~ /$def/)) { $d++; }
          if ($d == $p) { $d = 0; }
	  $short[$d]=$def;
        }
      }
    } while ($ans =~ /y(es)?/);
    $ok=&yninput("Is this ok","y");
  } else {
    $ok="yes";
  }
}

print "\n";
if ($p > 0) {
  if ( -x "/usr/bin/paperconf" ) {
    open(PAPERSIZE, "/usr/bin/paperconf -N|");
    $papersize=<PAPERSIZE>; chop($papersize);
    close(PAPERSIZE);
  }

  $pagelength=66;
  if ($papersize =~ /A4/) { $pagelength=72; }
  print "Paper size is $papersize, page length is $pagelength lines.\n";

  system("/etc/init.d/lpd stop  || /etc/init.d/lprng stop");

  my $printcaporig="$printcap.orig";
  if ( -r "$printcaporig" ) {
    unlink($printcaporig);
  }
  if ( -r "$printcap" ) {
    rename $printcap,$printcaporig;

    print "Renamed original $printcap to $printcaporig.\n";
  }

  open(PRINTCAP,">$printcap") || die "Can't write $printcap: $!";
  print PRINTCAP <<EOH;
#
# Copyright (c) 1983 Regents of the University of California.
# All rights reserved.
#
# Redistribution and use in source and binary forms are permitted
# provided that this notice is preserved and that due credit is given
# to the University of California at Berkeley. The name of the University
# may not be used to endorse or promote products derived from this
# software without specific prior written permission. This software
# is provided ``as is'' without express or implied warranty.
#
#	@(#)etc.printcap	5.2 (Berkeley) 5/5/88
#
# This file was generated by $0.
#
EOH

  $short[$d]="lp|" . $short[$d];
  for($i=0;$i<$p;$i++) {
    print PRINTCAP <<EOE;
$short[$i]|$full[$i]:\\
\t:$lpflags[$i]sd=$spooldir[$i]$remflags[$i]$serflags[$i]:\\
\t:sh:pw\#80:pl\#${pagelength}:px\#1440:mx\#0:\\
\t:if=$filterdir/$ifilter[$i]-filter:\\
\t:af=/var/log/lp-acct:lf=/var/log/lp-errs:
EOE
  }
  close(PRINTCAP);
  chmod 0644,$printcap;

  for($i=0;$i<$p;$i++) {
    $lpgrp=(getpwnam("lp"))[2];
    if ( ! -e $spooldir[$i] ) {
      umask 002; mkdir($spooldir[$i],02775); chown(0,$lpgrp,$spooldir[$i]);
    }
  }

  print<<EOT;
$printcap generated.

You\'ll probably want to finetune your newly created $printcap file.
Read the printcap(5), lpr(1), lpq(1), lprm(1) and lpc(1) manual pages
and the PRINTING-HOWTO before doing this.

EOT
  if (grep(/Stylus/, @ifilter)) {
    print<<EOT;
The file README-StylusColor explains the fine points about the Epson
Stylii Color family of printers.

EOT
  }
  if ($#remflags != $p) {
    print<<EOT;
Some printcap entries are for local printers. I therefore suggest to check
the suggests line in order to have all the necessary programs installed for
filtering (this is printer dependant, e.g. PostScript printers typically need
enscript to convert ASCII text to PostScript).

EOT
  }

  if (grep(/Deskjet/, @ifilter)) {
    print<<EOT;
Please install the djtools package.
If your deskjet does not work with your supplied driver try the pcl3 driver
or vice versa.

EOT
  }

  system("/etc/init.d/lpd start || /etc/init.d/lprng start");
}

my $display=$ENV{"DISPLAY"} || "";

if ( $display ne "" ) {
  $dummy="";
  print "Press <ENTER> to continue."; $dummy=<STDIN>;
}

exit 0;