PAL.C.T MINI SHELL
# irix-lib.pl
# Functions for irix-style printer management
$irix_iface_path = "/var/spool/lp/interface";
# list_printers()
# Returns an array of known printer names
sub list_printers
{
local(@rv, $_);
open(STAT, "/usr/bin/lpstat -p |");
while(<STAT>) {
if (/^printer\s+(\S+)/) { push(@rv, $1); }
}
close(STAT);
return &unique(@rv);
}
# get_printer(name, [nostatus])
# Returns a reference to an associative array of printer details
sub get_printer
{
local($stat, @rv, $body, $body, $avl, $con, $sys, %prn, $_, $out);
local $esc = quotemeta($_[0]);
$out = &backquote_command("/usr/bin/lpstat -p$esc", 1);
if ($out =~ /^printer\s+(\S+)\s*(.*)\s+(enabled|disabled)\s+since\s+(.+?)\n?(.*)?$/) {
# printer exists
$prn{'name'} = $1;
$prn{'enabled'} = $3 eq "enabled";
$body = $5;
}
else {
# no printer found
return undef;
}
# Interface
$prn{'iface'} = "$irix_iface_path/$prn{'name'}";
# Description
local $wdrv = &is_windows_driver($prn{'iface'});
local $hdrv = &is_hpnp_driver($prn{'iface'});
$prn{'desc'} = $wdrv ? &grep_interface($wdrv->{'program'}) :
$hdrv ? &grep_interface($hdrv->{'program'}) :
&grep_interface($prn{'iface'});
# printer enabled?
if (!$prn{'enabled'} && $body =~ /^\s+(.*)/) {
$prn{'enabled_why'} = $1 eq "reason unknown" ? "" : $1;
}
if (!$_[1]) {
# request availability
$avl = &backquote_command("/usr/bin/lpstat -a$esc 2>&1", 1);
if ($avl =~ /^\S+\s+not accepting.*\n\s+(.*)/) {
$prn{'accepting'} = 0;
$prn{'accepting_why'} = $1;
if ($prn{'accepting_why'} eq "reason unknown") {
$prn{'accepting_why'} = "";
}
}
else { $prn{'accepting'} = 1; }
}
# request connection
$con = &backquote_command("/usr/bin/lpstat -v$esc 2>&1", 1);
if ($con =~ /^device for \S+:\s+(\S+)\n\s+(remote to:)\s+(\S+)\s+(on)\s+(\S+)/) {
$prn{'rhost'} = $5;
$prn{'rqueue'} = $3;
}
elsif ($con =~ /^device for \S+:\s+(\S+)/) { $prn{'dev'} = $1; }
# Check if this is the default printer
if (&backquote_command("$lpstat -d 2>&1", 1) =~ /destination:\s+(\S+)/ &&
$1 eq $prn{'name'}) {
$prn{'default'} = 1;
}
return \%prn;
}
sub get_jobs
{
local @jobs;
local $esc = quotemeta($_[0]);
open(STAT, "/usr/bin/lpstat -o$esc |");
while(<STAT>) {
if (/^(\S+-\d+)\s+(\S+)\s+(\d+)\s+(\S+ \d+ \d+:\d+)\s+(.*)/) {
local(%job, $d, $f, @pf);
$job{'id'} = $1;
# local $id = $2;
$job{'user'} = $2;
$job{'size'} = $3;
$job{'when'} = $4;
$job{'printing'} = ($5 =~ /^on /);
# if ($job{'user'} =~ /(\S+)\!/ &&
# -d ($d="/var/spool/lp/tmp/$1")) {
# opendir(DIR, $d);
# foreach $f (readdir(DIR)) {
# push(@pf, "$d/$f") if ($f =~ /^$id-[1-9]/);
# }
# closedir(DIR);
# $job{'printfile'} = @pf ? \@pf : undef;
# }
push(@jobs, \%job);
}
}
close(STAT);
return @jobs;
}
# grep_interface($iface)
# try to find a description in the interface/model
sub grep_interface
{
local($iface, $desc, $out);
$iface = $_[0];
local $drv = &is_driver($iface);
if ($drv->{'mode'} == 1) {
$desc = $drv->{'desc'};
}
elsif ($drv->{'mode'} == 2) {
$out = &backquote_command("head $drv->{'prog'} | grep -e interface -e Printer -e /model/", 1);
if ($out =~ /interface for\s+(.*)/) { $desc = $1; }
elsif ($out =~ /\s+(\S.*)interface/) { $desc = $1; }
elsif ($out =~ /Printer Command Language level\s+(\S+)/) { $desc = "PCL$1"; }
elsif ($out =~ /\/model\/(\S+).*/) { $desc = $1; }
elsif ($out =~ /^#\s+(.*)/) { $desc = $1; }
else { $desc = "None"; }
}
else {
$desc = "None";
}
return $desc;
}
# printer_support(option)
sub printer_support
{
return $_[0] !~ /^(allow|alias|ctype|banner|desc|editdest|msize|direct|rnoqueue|ipp)$/;
}
# list_classes()
# Returns an associative array of print classes
sub list_classes
{
local($stat, %rv);
$stat = &backquote_command("/usr/bin/lpstat -c 2>&1", 1);
while($stat =~ /^members of class (\S+):\n((\s+\S+\n)+)([\000-\377]*)$/) {
$stat = $4;
$rv{$1} = [ grep { $_ ne "" } split(/\s+/, $2) ];
}
return \%rv;
}
# create_printer(&details)
# Create a new printer
sub create_printer
{
local(%prn, $cmd, $out, $model, $dummy, $scheduler);
%prn = %{$_[0]};
#local $wdrv = &is_windows_driver($prn{'iface'});
#local $hdrv = &is_hpnp_driver($prn{'iface'});
#$scheduler = &sched_running();
#$dummy = "webmin.tmp"; `touch $config{'model_path'}/$dummy`;
# create lpadmin command
local $esc = quotemeta($prn{'name'});
$cmd = "/usr/lib/lpadmin -p$esc";
## remote unix printer
if ($prn{'rhost'}) {
if ($prn{'iface'}) {
&error("lpadmin failed : <pre>No model allowed for remote unix printer.</pre>");
}
©_netface_driver($_[0]);
$cmd .= " -i$irix_iface_path/$esc.tmp";
$cmd .= " -v/dev/null";
}
## remote windows printer
#elsif ($wdrv) {
# $cmd .= " -m$dummy";
# $cmd .= " -v/dev/null";
# }
## remote HPNP printer
#elsif ($hdrv) {
# $cmd .= " -m$dummy";
# $cmd .= " -v/dev/null";
# }
## local printer with webmin driver
#elsif ($prn{'iface'} eq "$drivers_directory/$prn{'name'}") {
# $cmd .= " -m$dummy";
# $cmd .= " -v".quotemeta($prn{'dev'});
# }
## local printer with IRIX model
elsif ($prn{'iface'} =~ $config{'model_path'}) {
$model = substr($prn{'iface'}, length($config{'model_path'}) + 1);
$cmd .= " -m$model";
$cmd .= " -v".quotemeta($prn{'dev'});
}
else {
&error("lpadmin failed : <pre>Action not supported.</pre>");
}
# stop scheduler
#$out = &backquote_logged("/usr/lib/lpshut 2>&1");
# call lpadmin
$out = &backquote_logged("$cmd 2>&1");
if ($?) { &error("lpadmin failed : <pre>$out</pre>"); }
if ($prn{'rhost'}) {
&unlink_file("$irix_iface_path/$prn{'name'}.tmp");
}
## Link to windows webmin driver
#&lock_file("$irix_iface_path/$prn{'name'}");
#if ($wdrv) {
# `rm $irix_iface_path/$prn{'name'}`;
# `ln -s $drivers_directory/$prn{'name'}.smb $irix_iface_path/$prn{'name'}`;
# }
## Link to webmin hpnp driver
#if ($hdrv) {
# `rm $irix_iface_path/$prn{'name'}`;
# `ln -s $drivers_directory/$prn{'name'}.hpnp $irix_iface_path/$prn{'name'}`;
# }
## Link to webmin driver
#if ($prn{'iface'} eq "$drivers_directory/$prn{'name'}" && !$wdrv) {
# `rm $irix_iface_path/$prn{'name'}`;
# `ln -s $drivers_directory/$prn{'name'} $irix_iface_path/$prn{'name'}`;
# }
#&unlock_file("$irix_iface_path/$prn{'name'}");
#&lock_file("$config{'model_path'}/$dummy");
#`rm $config{'model_path'}/$dummy`;
#&unlock_file("$config{'model_path'}/$dummy");
# start scheduler
#if ($scheduler) {
# $out = &backquote_logged("/usr/lib/lpsched 2>&1");
# if ($?) { &error("lpsched failed : <pre>$out</pre>"); }
# }
#change printer parameters
&modify_printer($_[0]);
}
# copy_netface_driver(&prn)
# Copies netface driver to interfaces directory and changes
# remote host address, name and type of remote printer.
sub copy_netface_driver {
local (%prn);
%prn = %{$_[0]};
my ($cmd, $rname, $rtype, $nettype, $driver_file ) = ();
if ( $prn{'rtype'} eq "s5" ) {
$nettype = "sgi";
$cmd = "/usr/bsd/rsh -l lp $prn{'rhost'} "
. "\'grep \"^NAME\" $irix_iface_path/$prn{'rqueue'}\'";
$rname = &backquote_logged("$cmd");
if ($?) { &error("Failed to read remote printer's name : <pre>$rname</pre>"); }
$cmd = "/usr/bsd/rsh -l lp $prn{'rhost'} "
. "\'grep \"^TYPE\" $irix_iface_path/$prn{'rqueue'}\'";
$rtype = &backquote_logged("$cmd");
if ($?) { &error("Failed to read remote printer's type : <pre>$rtype</pre>"); }
} else {
$nettype = "bsd";
$rname = "BSD Printer";
$rtype = "PostScript";
}
undef local $/;
open (NETFACE,"<$config{'model_path'}/netface") or &error("Failed to open netface driver.");
$driver_file = <NETFACE>;
close (NETFACE);
$driver_file =~ s/^TYPE=unknown/$rtype/m;
$driver_file =~ s/^NAME=/$rname/m;
$driver_file =~ s/^NETTYPE=/NETTYPE=$nettype/m;
$driver_file =~ s/^HOSTNAME=/HOSTNAME=$prn{'rhost'}/m;
$driver_file =~ s/^HOSTPRINTER=/HOSTPRINTER=$prn{'rqueue'}/m;
&open_tempfile(INTERFACE,">$irix_iface_path/$prn{'name'}.tmp", 1) ||
&error("Failed to open interface for $prn{'name'}.");
&print_tempfile(INTERFACE, $driver_file);
&close_tempfile(INTERFACE);
}
# modify_printer(&details)
# Change an existing printer
sub modify_printer
{
local(%prn, $cmd, $out);
%prn = %{$_[0]};
# make the default
local $esc = quotemeta($prn{'name'});
if ($prn{'default'}) {
$out = &backquote_logged("/usr/lib/lpadmin -d$esc 2>&1");
if ($?) { &error("Failed to set default : <pre>$out</pre>"); }
}
# enable or disable
if ($prn{'enabled'}) { $cmd = "/usr/bin/enable $esc"; }
elsif ($prn{'enabled_why'}) {
local $wesc = quotemeta($prn{'enabled_why'});
$cmd = "/usr/bin/enable $esc ; /usr/bin/disable -r$wesc $esc";
}
else { $cmd = "/usr/bin/enable $esc ; /usr/bin/disable $esc"; }
$out = &backquote_logged("$cmd 2>&1");
# accepting or rejecting requests
if ($prn{'accepting'}) { $cmd = "/usr/lib/accept $esc"; }
elsif ($prn{'accepting_why'}) {
local $wesc = quotemeta($prn{'accepting_why'});
$cmd = "/usr/lib/accept $esc ; /usr/lib/reject -r$wesc $esc";
}
else { $cmd = "/usr/lib/accept $esc ; /usr/lib/reject $esc"; }
$out = &backquote_logged("$cmd 2>&1");
}
# delete_printer(name)
# Deletes some existing printer
sub delete_printer
{
local($out, $scheduler);
#$scheduler = &sched_running();
local $esc = quotemeta($_[0]);
# delete print jobs
$out = &backquote_logged("/usr/bin/cancel -a $esc 2>&1");
if ($?) { &error("cancel failed : <pre>$out</pre>"); }
# call lpadmin
$out = &backquote_logged("/usr/lib/lpadmin -x$esc 2>&1");
if ($?) { &error("lpadmin failed : <pre>$out</pre>"); }
}
# cancel_job(printer, id)
# Cancels some print job
sub cancel_job
{
local($out);
local $iesc = quotemeta($_[1]);
$out = &backquote_logged("/usr/bin/cancel $iesc 2>&1");
if ($?) { &error("cancel failed : <pre>$out</pre>"); }
sleep(1);
}
# sched_running()
# Returns 1 if running and 0 if not running
sub sched_running
{
local $out = &backquote_command("lpstat -r 2>&1", 1);
if ($out =~ /not/) { return 0; }
else { return 1; }
}
# start_sched()
# Start lpsched
sub start_sched
{
my $cmd = "/usr/lib/lpshut > /dev/null 2>&1;"
. "/sbin/killall lpautoenable;"
. "rm -f /var/spool/lp/SCHEDLOCK /var/spool/lp/FIFO;"
. "/usr/lib/lpsched 2>&1";
local $out = &backquote_logged($cmd);
if ($?) { &error("failed to start lpsched : <tt>$out</tt>"); }
}
# stop_sched(pid)
# Stop the running lpsched process
sub stop_sched
{
local $out = &backquote_logged("/usr/lib/lpshut 2>&1");
if ($?) { &error("lpshut failed : <tt>$out</tt>"); }
}
# print_command(printer, file)
# Returns the command to print some file on some printer
sub print_command
{
local $esc = quotemeta($_[0]);
local $fesc = quotemeta($_[1]);
return "lp -d$esc $fesc";
}
# check_print_system()
sub check_print_system
{
&has_command("lpstat") || return &text('irix_ecmd', "<tt>lpstat</tt>");
-d $irix_iface_path || return &text('irix_eiface',"<tt>$irix_iface_path</tt>");
return undef;
}
@device_files = ("/dev/plp",
"/dev/ttyd1", "/dev/ttyd2",
"/dev/null");
@device_names = ("Parallel",
"Serial 1", "Serial 2",
"Null Device");
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