#!/usr/bin/perl -w## A program to make a netbootable image from a LRP firewall floppy# Tested on a Coyote Linux floppy#@cfg = `mtype a:syslinux.cfg`;unless (defined(@cfg)) {	print "Cannot find syslinux.cfg on floppy\n";	exit 1;}($append) = grep(/^append/, @cfg);	# find the append= linechomp($append);				# remove trailing newline$append =~ s/append=//;			# remove the append= at beginning@args = split(/ /, $append);		# split into arguments at whitespace($root) = grep(/^initrd=/, @args);	# find the initrd= argument$root =~ s/^initrd=//;			# remove the initrd= at beginning($lrp) = grep(/^LRP=/, @args);		# find the LRP= argument$lrp =~ s/^LRP=//;			# remove the LRP= at beginning@lrp = split(/,/, $lrp);		# split into filenames at ,unshift(@lrp, $root);			# prepend the root LRP filename$append = '';foreach $i (@args) {			# rebuild the append string	next if ($i =~ /^initrd=/);	# minus the unneeded parameters	next if ($i =~ /^LRP=/);	next if ($i =~ /^boot=/);	$append .= "$i ";}# print "$append\n";$tempdir = "/tmp/lrp$$";mkdir($tempdir, 0777) or die "$tempdir: $!\n";chdir($tempdir) or die "$tempdir: $!\n";foreach $i (@lrp) {	$i .= '.lrp' if $i !~ /\.lrp$/;	print "Unpacking $i\n";	system("mtype a:$i | tar zxvf -");}print "Repacking to /tmp/lrp.lrp\n";system("tar zcf /tmp/lrp.lrp *");chdir('/tmp') or die "/tmp: $!\n";system("rm -fr $tempdir");print "Extracting kernel image from floppy\n";system("mtype a:linux > /tmp/lrp.ker");print "Creating netboot image in /tmp/lrp.nb\n";system("mkelf-linux --append='$append' --output=/tmp/lrp.nb /tmp/lrp.ker /tmp/lrp.lrp");exit 0;