#!/usr/bin/perl

#- Synchronize mulitple RPMS/SRPMS directories.
#- Copyright (C) 1999 MandrakeSoft (fpons@mandrakesoft.com)
#-
#- This program is free software; you can redistribute it and/or modify
#- it under the terms of the GNU General Public License as published by
#- the Free Software Foundation; either version 2, or (at your option)
#- any later version.
#-
#- This program is distributed in the hope that it will be useful,
#- but WITHOUT ANY WARRANTY; without even the implied warranty of
#- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
#- GNU General Public License for more details.
#-
#- You should have received a copy of the GNU General Public License
#- along with this program; if not, write to the Free Software
#- Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.


use strict qw(subs vars refs);

#- compare a version string.
use URPM;

#- get basename for a file.
sub basename { $_[0] =~ /([^\/]*)$/ ? $1 : $_[0]; }

#- system functions.
sub cp {
    my $pid;
    if ($pid = fork()) {
	waitpid($pid, 0);
    } else {
	exec '/bin/cp', @_;
    }
}
sub mv {
    my $pid;
    if ($pid = fork()) {
	waitpid($pid, 0);
    } else {
	exec '/bin/mv', @_;
    }
}
sub rm {
    my $pid;
    if ($pid = fork()) {
	waitpid($pid, 0);
    } else {
	exec '/bin/rm', '-f', @_;
    }
}

#- get a hash on name of srpms/rpms in a directory.
sub get_rpms {
    my ($dir, $rpms, $flag, $modifiable) = @_;

    opendir D, $dir or die "cannot open directory $dir\n";
    map { 
	if (/([^\/]*?)-([^-]*)-([^-]*)\.([^-\.]*)\.rpm$/) {
	    my $key = "$1 $4"; #- get name including architecture.
	    if ($rpms->{$key}) {
		if (URPM::ranges_overlap("== $2-$3", "> $rpms->{$key}{version}-$rpms->{$key}{release}")) {
		    if ($modifiable) {
			if ($flag->{sorted}) {
			    print "you said rpms directory is sorted, so I keep obsoleted $rpms->{$key}{file} by $_ in $rpms->{$key}{dir}\n" if $flag->{verbose};
			} else {
			    if (-d $flag->{conflict}) {
				print "moving obsoleted $rpms->{$key}{file} by $_ in $rpms->{$key}{dir}\n" if $flag->{verbose};
				mv("$rpms->{$key}{dir}/$rpms->{$key}{file}", $flag->{conflict});
			    } elsif ($flag->{clean}) {
				print "removing obsoleted $rpms->{$key}{file} by $_ in $rpms->{$key}{dir}\n" if $flag->{verbose};
				rm("$rpms->{$key}{dir}/$rpms->{$key}{file}");
			    }
			}
		    }
		    $rpms->{$key} = { key => $key,
				      name => $1,
				      version => $2,
				      release => $3,
				      arch => $4,
				      dir => $dir,
				      file => $_,
				    };
		} else {
		    if ($modifiable) {
			if (-d $flag->{conflict}) {
			    print "copying older or equal $_ by $rpms->{$key}{file} in $flag->{conflict}\n" if $flag->{verbose};
			    cp("$dir/$_", $flag->{conflict});
			    chmod 0644, "$flag->{conflict}/$_";
			} elsif ($flag->{clean}) {
			    print "removing older or equal $_ by $rpms->{$key}{file} in $dir\n" if $flag->{verbose};
			    rm("$dir/$_");
			}
		    }
		}
	    } else {
		$rpms->{$key} = { key => $key,
				  name => $1,
				  version => $2,
				  release => $3,
				  arch => $4,
				  dir => $dir,
				  file => $_,
			        };
	    }
	} else {
	    print STDERR "unable to parse filename $_\n";
	}
    } grep { /\.rpm$/ } readdir D;
    closedir D;
}

#- sync packages list according to hashes of rpms.
sub sync_medium {
    my ($rpmsdirs, $list, $rpms, $flag) = @_;
    my %pkg2dir;

    #- build a hash according to rpmsdirs and list for package name.
    my $i = 0;
    foreach (@$list) {
	local *F;
	open F, $_ or die "unable to open packages list file \"$_\"\n";
	foreach (<F>) {
	    chomp;
	    print STDERR "package \"$_\" is listed in mulitple list files!\n" if $pkg2dir{$_};
	    $pkg2dir{$_} = $rpmsdirs->[$i];
	    print "package \"$_\" listed in list files does not exists in rpms directory\n" if $flag->{verbose} && !$rpms->{$_};
	}
	close F;

	++$i;
    }

    #- check for right directory, and move if necessary.
    foreach (values %$rpms) {
	unless ($pkg2dir{$_->{key}}) {
	    print "file $_->{file} in $_->{dir} define package \"$_->{name}\" not listed in list files\n" if $flag->{verbose};
	} elsif ($_->{dir} ne $pkg2dir{$_->{key}}) {
	    print "moving file $_->{file} in $_->{dir} to $pkg2dir{$_->{key}}\n" if $flag->{verbose};
	    mv("$_->{dir}/$_->{file}", $pkg2dir{$_->{key}});
	    $_->{dir} = $pkg2dir{$_->{key}};
	}
    }
}

#- sync two hashes of rpms, update rpms and printer newer version that are not taken into account.
sub sync_rpms {
    my ($source, $target, $flag) = @_;

    #- search in source part.
    foreach (keys %$source) {
	unless ($target->{$_}) {
	    if ($flag->{verbose}) {
		print "adding $source->{$_}{file}" . (-d $flag->{add} ? " to $flag->{add}\n" : " is neccessary!\n");
	    }
	    if (-d $flag->{add}) {
		cp("$source->{$_}{dir}/$source->{$_}{file}", $flag->{add});
		chmod 0644, "$flag->{add}/$source->{$_}{file}";
	    }
	}
    }

    #- search in both part.
    foreach (keys %$source) {
	if ($target->{$_}) {
	    if (URPM::ranges_overlap("== $source->{$_}{version}-$source->{$_}{release}",
				     ">= $target->{$_}{version}-$target->{$_}{release}")) {
		if ("$source->{$_}{version}-$source->{$_}{release}" eq "$target->{$_}{version}-$target->{$_}{release}") {
		    -s "$source->{$_}{dir}/$source->{$_}{file}" == -s "$target->{$_}{dir}/$target->{$_}{file}" and next;
		}
		if ($flag->{verbose}) {
		    print "updating $target->{$_}{dir}/$target->{$_}{file} with newer version $source->{$_}{file}\n";
		}
		if ($flag->{update}) {
		    cp("$source->{$_}{dir}/$source->{$_}{file}", $target->{$_}{dir});
		    chmod 0644, "$target->{$_}{dir}/$source->{$_}{file}";
		    unless (-e "$target->{$_}{dir}/$source->{$_}{file}") {
			die "unable to copy $source->{$_}{file} from $source->{$_}{dir} into $target->{$_}{dir}\n";
		    }
		    rm("$target->{$_}{dir}/$target->{$_}{file}") unless $source->{$_}{file} eq $target->{$_}{file}; #- copy on eq
		}
	    } elsif ($source->{$_}{version} ne $target->{$_}{version} || $source->{$_}{release} ne $target->{$_}{release}) {
		if ($flag->{verbose}) {
		    print STDERR "keeping more up-to-date version $target->{$_}{dir}/$target->{$_}{file} against $source->{$_}{dir}/$source->{$_}{file}, check your repository !\n";
		}
	    } #- say nothing if source is equal to target.
	}
    }

    #- search in target part.
    foreach (keys %$target) {
	unless ($source->{$_}) {
	    if ($flag->{verbose}) {
		print "removing $target->{$_}{file}" . ($flag->{remove} ? " from $target->{$_}{dir}\n" : " is neccessary!\n");
		my $k = $_;
	    }
	    if ($flag->{remove}) {
		rm("$target->{$_}{dir}/$target->{$_}{file}");
	    }
	}
    }
}

#- main program.
sub main {
    my @from_rpms;
    my @to_rpms;
    my @list;
    my $target;
    my %flag;
    my %source;
    my %target;

    foreach (@_) {
	if (/^--(\w*)$/) {
	    if ($1 eq 'verbose' || $1 eq 'update' || $1 eq 'remove' || $1 eq 'clean' || $1 eq 'sorted') {
		$flag{$1} = 1;
	    } elsif ($1 eq 'add' || $1 eq 'conflict') {
		$flag{$1} = undef;
	    } elsif ($1 eq 'from') {
		$target = \@from_rpms;
	    } elsif ($1 eq 'to') {
		$target = \@to_rpms;
	    } elsif ($1 eq 'list') {
		$target = \@list;
	    } else {
		die "unknown option: $1\n";
	    }
	} else {
	    if (exists $flag{add} && ! $flag{add}) {
		$flag{add} = $_;
		die "cannot add to non-directory: $_\n" unless -d $flag{add};
	    } elsif (exists $flag{conflict} && ! $flag{conflict}) {
		$flag{conflict} = $_;
		die "cannot add to non-directory: $_\n" unless -d $flag{conflict};
	    } else {
		die "unknown parameter: $_\n" unless $target;
		push @$target, $_;
	    }
	}
    }

    die "usage: syncrpms [--update] [--remove] [--clean] [--sorted] [--add <dir>] [--conflict <dir>] --from <dir_sources> --to <dir_targets> [--list <files>]\n"
	unless scalar(@from_rpms) > 0 || scalar(@to_rpms) > 0;

    #- parse directory structures.
    get_rpms($_, \%source, \%flag, 0) foreach @from_rpms;
    print STDERR "reading " . scalar(keys %source) . " packages as source rpms from\n";
    print STDERR "    $_\n" foreach @from_rpms;

    get_rpms($_, \%target, \%flag, 1) foreach @to_rpms;
    print STDERR "reading " . scalar(keys %target) . " packages as target rpms from\n";
    print STDERR "    $_\n" foreach @to_rpms;

    sync_medium(\@to_rpms, \@list, \%target, \%flag) if scalar(@list) > 0 && scalar(@to_rpms) > 0;
    sync_rpms(\%source, \%target, \%flag) if scalar(@from_rpms) > 0 && scalar(@to_rpms) > 0;
}

main(@ARGV);
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</pre></td>
<td class='lines'><pre><code><span class="hl kwa">package</span> common<span class="hl opt">;</span> <span class="hl slc"># $Id$</span>

<span class="hl kwa">use</span> MDK<span class="hl opt">::</span>Common<span class="hl opt">;</span>
<span class="hl kwa">use</span> diagnostics<span class="hl opt">;</span>
<span class="hl kwa">use</span> strict<span class="hl opt">;</span>

<span class="hl kwa">use</span> <span class="hl kwc">log</span><span class="hl opt">;</span>
<span class="hl kwa">use</span> run_program<span class="hl opt">;</span>

<span class="hl kwa">use</span> Exporter<span class="hl opt">;</span>
<span class="hl kwc">our</span> <span class="hl kwb">&#64;ISA</span> <span class="hl opt">=</span> <span class="hl str">qw(Exporter)</span><span class="hl opt">;</span>
<span class="hl kwc">our</span> <span class="hl kwb">&#64;EXPORT</span> <span class="hl opt">=</span> <span class="hl str">qw(</span><span class="hl ipl">$SECTORSIZE</span> <span class="hl str">N N_ check_for_xserver files_exist formatTime formatXiB makedev mandrake_release removeXiBSuffix require_root_capability salt setVirtual set_alternative set_l10n_sort set_permissions translate unmakedev)</span><span class="hl opt">;</span>

<span class="hl slc"># perl_checker: RE-EXPORT-ALL</span>
<span class="hl kwc">push</span> <span class="hl kwb">&#64;EXPORT, &#64;MDK</span><span class="hl opt">::</span>Common<span class="hl opt">::</span>EXPORT<span class="hl opt">;</span>


<span class="hl opt">$::</span>prefix <span class="hl opt">||=</span> <span class="hl str">&quot;&quot;</span><span class="hl opt">;</span> <span class="hl slc"># no warning</span>

<span class="hl slc">#-#####################################################################################</span>
<span class="hl slc">#- Globals</span>
<span class="hl slc">#-#####################################################################################</span>
<span class="hl kwc">our</span> <span class="hl kwb">$SECTORSIZE</span>  <span class="hl opt">=</span> <span class="hl num">512</span><span class="hl opt">;</span>

<span class="hl slc">#-#####################################################################################</span>
<span class="hl slc">#- Functions</span>
<span class="hl slc">#-#####################################################################################</span>


<span class="hl kwa">sub</span> sprintf_fixutf8 <span class="hl opt">{</span>
    <span class="hl kwc">my</span> <span class="hl kwb">$need_upgrade</span><span class="hl opt">;</span>
    <span class="hl kwb">$need_upgrade</span> <span class="hl opt">|=</span> to_bool<span class="hl opt">(</span>c<span class="hl opt">::</span>is_tagged_utf8<span class="hl opt">(</span><span class="hl kwb">$_</span><span class="hl opt">)) +</span> <span class="hl num">1</span> <span class="hl kwa">foreach</span> <span class="hl kwb">&#64;_</span><span class="hl opt">;</span>
    <span class="hl kwa">if</span> <span class="hl opt">(</span><span class="hl kwb">$need_upgrade</span> <span class="hl opt">==</span> <span class="hl num">3</span><span class="hl opt">) {</span> c<span class="hl opt">::</span>upgrade_utf8<span class="hl opt">(</span><span class="hl kwb">$_</span><span class="hl opt">)</span> <span class="hl kwa">foreach</span> <span class="hl kwb">&#64;_</span> <span class="hl opt">}</span>
    <span class="hl kwc">sprintf shift</span><span class="hl opt">,</span> <span class="hl kwb">&#64;_</span><span class="hl opt">;</span>
<span class="hl opt">}</span>

<span class="hl kwa">sub</span> N <span class="hl opt">{</span>
    <span class="hl opt">$::</span>one_message_has_been_translated <span class="hl opt">||=</span> <span class="hl kwc">join</span><span class="hl opt">(</span><span class="hl str">&apos;:&apos;</span><span class="hl opt">, (</span><span class="hl kwc">caller</span><span class="hl opt">(</span><span class="hl num">0</span><span class="hl opt">))[</span><span class="hl num">1</span><span class="hl opt">,</span><span class="hl num">2</span><span class="hl opt">]);</span> <span class="hl slc">#- see mygtk2.pm</span>
    <span class="hl kwc">my</span> <span class="hl kwb">$s</span> <span class="hl opt">=</span> <span class="hl kwc">shift</span> <span class="hl kwb">&#64;_</span><span class="hl opt">;</span> <span class="hl kwc">my</span> <span class="hl kwb">$t</span> <span class="hl opt">=</span> translate<span class="hl opt">(</span><span class="hl kwb">$s</span><span class="hl opt">);</span>
    sprintf_fixutf8 <span class="hl kwb">$t, &#64;_</span><span class="hl opt">;</span>
<span class="hl opt">}</span>
<span class="hl kwa">sub</span> N_ <span class="hl opt">{</span> <span class="hl kwb">$_</span><span class="hl opt">[</span><span class="hl num">0</span><span class="hl opt">] }</span>


<span class="hl kwa">sub</span> salt <span class="hl opt">{</span>
    <span class="hl kwc">my</span> <span class="hl opt">(</span><span class="hl kwb">$nb</span><span class="hl opt">) =</span> <span class="hl kwb">&#64;_</span><span class="hl opt">;</span>
    <span class="hl kwa">require</span> devices<span class="hl opt">;</span>
    <span class="hl kwc">open</span><span class="hl opt">(</span><span class="hl kwc">my</span> <span class="hl kwb">$F,</span> devices<span class="hl opt">::</span>make<span class="hl opt">(</span><span class="hl str">&quot;random&quot;</span><span class="hl opt">))</span> <span class="hl kwc">or die</span> <span class="hl str">&quot;missing random&quot;</span><span class="hl opt">;</span>
    <span class="hl kwc">my</span> <span class="hl kwb">$s</span><span class="hl opt">;</span> <span class="hl kwc">read</span> <span class="hl kwb">$F, $s, $nb</span><span class="hl opt">;</span>
    <span class="hl kwb">$s</span> <span class="hl opt">=</span> <span class="hl kwc">pack</span><span class="hl opt">(</span><span class="hl str">&quot;b8&quot;</span> x <span class="hl kwb">$nb,</span> <span class="hl kwc">unpack</span> <span class="hl str">&quot;b6&quot;</span> x <span class="hl kwb">$nb, $s</span><span class="hl opt">);</span>
    <span class="hl kwb">$s</span> <span class="hl opt">=~</span> tr<span class="hl opt">|</span>\<span class="hl num">0</span><span class="hl opt">-</span><span class="hl esc">\x3f</span><span class="hl opt">|</span><span class="hl num">0</span><span class="hl opt">-</span><span class="hl num">9</span>a-zA-Z<span class="hl opt">./|;</span>
    <span class="hl kwb">$s</span><span class="hl opt">;</span>
<span class="hl opt">}</span>

<span class="hl kwa">sub</span> makedev <span class="hl opt">{ (</span><span class="hl kwb">$_</span><span class="hl opt">[</span><span class="hl num">0</span><span class="hl opt">] &lt;&lt;</span> <span class="hl num">8</span><span class="hl opt">) |</span> <span class="hl kwb">$_</span><span class="hl opt">[</span><span class="hl num">1</span><span class="hl opt">] }</span>
<span class="hl kwa">sub</span> unmakedev <span class="hl opt">{</span> <span class="hl kwb">$_</span><span class="hl opt">[</span><span class="hl num">0</span><span class="hl opt">] &gt;&gt;</span> <span class="hl num">8</span><span class="hl opt">,</span> <span class="hl kwb">$_</span><span class="hl opt">[</span><span class="hl num">0</span><span class="hl opt">] &amp;</span> <span class="hl num">0xff</span> <span class="hl opt">}</span>

<span class="hl kwa">sub</span> translate_real <span class="hl opt">{</span>
    <span class="hl kwc">my</span> <span class="hl opt">(</span><span class="hl kwb">$s</span><span class="hl opt">) =</span> <span class="hl kwb">&#64;_</span><span class="hl opt">;</span>
    <span class="hl kwb">$s</span> <span class="hl kwc">or</span> <span class="hl kwa">return</span> <span class="hl str">&apos;&apos;</span><span class="hl opt">;</span>
    <span class="hl kwa">foreach</span> <span class="hl opt">(&#64;::</span>textdomains<span class="hl opt">,</span> <span class="hl str">&apos;libDrakX&apos;</span><span class="hl opt">) {</span>
	<span class="hl kwc">my</span> <span class="hl kwb">$s2</span> <span class="hl opt">=</span> c<span class="hl opt">::</span>dgettext<span class="hl opt">(</span><span class="hl kwb">$_, $s</span><span class="hl opt">);</span>
	<span class="hl kwa">return</span> <span class="hl kwb">$s2</span> <span class="hl kwa">if</span> <span class="hl kwb">$s</span> <span class="hl kwc">ne</span> <span class="hl kwb">$s2</span><span class="hl opt">;</span>
    <span class="hl opt">}</span>
    <span class="hl kwb">$s</span><span class="hl opt">;</span>
<span class="hl opt">}</span>

<span class="hl kwa">sub</span> translate <span class="hl opt">{</span>
    <span class="hl kwc">my</span> <span class="hl kwb">$s</span> <span class="hl opt">=</span> translate_real<span class="hl opt">(</span><span class="hl kwb">&#64;_</span><span class="hl opt">);</span>
    <span class="hl opt">$::</span>need_utf8_i18n <span class="hl kwc">and</span> c<span class="hl opt">::</span>set_tagged_utf8<span class="hl opt">(</span><span class="hl kwb">$s</span><span class="hl opt">);</span>

    <span class="hl slc">#- translation with context, kde-like </span>
    <span class="hl kwb">$s</span> <span class="hl opt">=~</span> <span class="hl kwd">s/^_:.*\n//</span><span class="hl opt">;</span>
    <span class="hl kwb">$s</span><span class="hl opt">;</span>
<span class="hl opt">}</span>

<span class="hl slc">#- This is needed because text printed by Gtk2 will always be encoded</span>
<span class="hl slc">#- in UTF-8;</span>
<span class="hl slc">#- we first check if LC_ALL is defined, because if it is, changing</span>
<span class="hl slc">#- only LC_COLLATE will have no effect.</span>
<span class="hl kwa">sub</span> set_l10n_sort<span class="hl opt">() {</span>
    <span class="hl kwc">my</span> <span class="hl kwb">$collation_locale</span> <span class="hl opt">=</span> <span class="hl kwb">$ENV</span><span class="hl opt">{</span>LC_ALL<span class="hl opt">};</span>
    <span class="hl kwa">if</span> <span class="hl opt">(!</span><span class="hl kwb">$collation_locale</span><span class="hl opt">) {</span>
        <span class="hl kwb">$collation_locale</span> <span class="hl opt">=</span> c<span class="hl opt">::</span>setlocale<span class="hl opt">(</span>c<span class="hl opt">::</span>LC_COLLATE<span class="hl opt">());</span>
        <span class="hl kwb">$collation_locale</span> <span class="hl opt">=~</span> <span class="hl kwd">/UTF-8/</span> <span class="hl kwc">or</span> c<span class="hl opt">::</span>setlocale<span class="hl opt">(</span>c<span class="hl opt">::</span>LC_COLLATE<span class="hl opt">(),</span> <span class="hl str">&quot;</span><span class="hl ipl">$collation_locale</span><span class="hl str">.UTF-8&quot;</span><span class="hl opt">);</span>
    <span class="hl opt">}</span>
<span class="hl opt">}</span>


<span class="hl kwa">BEGIN</span> <span class="hl opt">{</span> <span class="hl kwc">undef</span> <span class="hl opt">*</span>availableRamMB <span class="hl opt">}</span>
<span class="hl kwa">sub</span> availableRamMB<span class="hl opt">()  {</span> 
    <span class="hl kwc">my</span> <span class="hl kwb">$s</span> <span class="hl opt">=</span> MDK<span class="hl opt">::</span>Common<span class="hl opt">::</span>System<span class="hl opt">::</span>availableRamMB<span class="hl opt">();</span>
    <span class="hl slc">#- HACK HACK: if i810 and memsize</span>
    <span class="hl kwa">require</span> detect_devices<span class="hl opt">;</span>
    <span class="hl kwa">return</span> <span class="hl kwb">$s</span> <span class="hl opt">-</span> <span class="hl num">1</span> <span class="hl kwa">if</span> <span class="hl kwb">$s</span> <span class="hl opt">==</span> <span class="hl num">128</span> <span class="hl opt">&amp;&amp;</span> detect_devices<span class="hl opt">::</span>matching_driver__regexp<span class="hl opt">(</span><span class="hl str">&apos;^Card:Intel 810$&apos;</span><span class="hl opt">);</span>
    <span class="hl kwb">$s</span><span class="hl opt">;</span>
<span class="hl opt">}</span>

<span class="hl kwa">sub</span> setVirtual <span class="hl opt">{</span>
    <span class="hl kwc">my</span> <span class="hl opt">(</span><span class="hl kwb">$vt_number</span><span class="hl opt">) =</span> <span class="hl kwb">&#64;_</span><span class="hl opt">;</span>
    <span class="hl kwc">my</span> <span class="hl kwb">$vt</span> <span class="hl opt">=</span> <span class="hl str">&apos;&apos;</span><span class="hl opt">;</span>
    <span class="hl kwc">sysopen</span><span class="hl opt">(</span><span class="hl kwc">my</span> <span class="hl kwb">$C,</span> <span class="hl str">&quot;/dev/console&quot;</span><span class="hl opt">,</span> <span class="hl num">2</span><span class="hl opt">)</span> <span class="hl kwc">or die</span> <span class="hl str">&quot;failed to open /dev/console:</span> <span class="hl ipl">$!</span><span class="hl str">&quot;</span><span class="hl opt">;</span>
    <span class="hl kwc">ioctl</span><span class="hl opt">(</span><span class="hl kwb">$C,</span> c<span class="hl opt">::</span>VT_GETSTATE<span class="hl opt">(),</span> <span class="hl kwb">$vt</span><span class="hl opt">) &amp;&amp;</span>
      <span class="hl kwc">ioctl</span><span class="hl opt">(</span><span class="hl kwb">$C,</span> c<span class="hl opt">::</span>VT_ACTIVATE<span class="hl opt">(),</span> <span class="hl kwb">$vt_number</span><span class="hl opt">) &amp;&amp;</span>
	<span class="hl kwc">ioctl</span><span class="hl opt">(</span><span class="hl kwb">$C,</span> c<span class="hl opt">::</span>VT_WAITACTIVE<span class="hl opt">(),</span> <span class="hl kwb">$vt_number</span><span class="hl opt">)</span> <span class="hl kwc">or die</span> <span class="hl str">&quot;setVirtual failed&quot;</span><span class="hl opt">;</span>
    <span class="hl kwc">unpack</span> <span class="hl str">&quot;S&quot;</span><span class="hl opt">,</span> <span class="hl kwb">$vt</span><span class="hl opt">;</span>
<span class="hl opt">}</span>

<span class="hl kwa">sub</span> nonblock <span class="hl opt">{</span>
    <span class="hl kwc">my</span> <span class="hl opt">(</span><span class="hl kwb">$F</span><span class="hl opt">) =</span> <span class="hl kwb">&#64;_</span><span class="hl opt">;</span>
    <span class="hl kwc">fcntl</span><span class="hl opt">(</span><span class="hl kwb">$F,</span> c<span class="hl opt">::</span>F_SETFL<span class="hl opt">(),</span> <span class="hl kwc">fcntl</span><span class="hl opt">(</span><span class="hl kwb">$F,</span> c<span class="hl opt">::</span>F_GETFL<span class="hl opt">(),</span> <span class="hl num">0</span><span class="hl opt">) |</span> c<span class="hl opt">::</span>O_NONBLOCK<span class="hl opt">());</span>
<span class="hl opt">}</span>

<span class="hl kwa">sub</span> removeXiBSuffix <span class="hl opt">{</span>
    <span class="hl kwc">local</span> <span class="hl kwb">$_</span> <span class="hl opt">=</span> <span class="hl kwc">shift</span><span class="hl opt">;</span>

    <span class="hl kwd">/(\d+)\s*kB?$/i</span> <span class="hl kwc">and</span> <span class="hl kwa">return</span> <span class="hl kwb">$1</span> <span class="hl opt">*</span> <span class="hl num">1024</span><span class="hl opt">;</span>
    <span class="hl kwd">/(\d+)\s*MB?$/i</span> <span class="hl kwc">and</span> <span class="hl kwa">return</span> <span class="hl kwb">$1</span> <span class="hl opt">*</span> <span class="hl num">1024</span> <span class="hl opt">*</span> <span class="hl num">1024</span><span class="hl opt">;</span>
    <span class="hl kwd">/(\d+)\s*GB?$/i</span> <span class="hl kwc">and</span> <span class="hl kwa">return</span> <span class="hl kwb">$1</span> <span class="hl opt">*</span> <span class="hl num">1024</span> <span class="hl opt">*</span> <span class="hl num">1024</span> <span class="hl opt">*</span> <span class="hl num">1024</span><span class="hl opt">;</span>
    <span class="hl kwd">/(\d+)\s*TB?$/i</span> <span class="hl kwc">and</span> <span class="hl kwa">return</span> <span class="hl kwb">$1</span> <span class="hl opt">*</span> <span class="hl num">1024</span> <span class="hl opt">*</span> <span class="hl num">1024</span> <span class="hl opt">*</span> <span class="hl num">1024</span> <span class="hl opt">*</span> <span class="hl num">1024</span><span class="hl opt">;</span>
    <span class="hl kwb">$_</span><span class="hl opt">;</span>
<span class="hl opt">}</span>
<span class="hl kwa">sub</span> formatXiB <span class="hl opt">{</span>
    <span class="hl kwc">my</span> <span class="hl opt">(</span><span class="hl kwb">$newnb, $o_newbase</span><span class="hl opt">) =</span> <span class="hl kwb">&#64;_</span><span class="hl opt">;</span>
    <span class="hl kwc">my</span> <span class="hl kwb">$newbase</span> <span class="hl opt">=</span> <span class="hl kwb">$o_newbase</span> <span class="hl opt">||</span> <span class="hl num">1</span><span class="hl opt">;</span>
    <span class="hl kwc">my</span> <span class="hl opt">(</span><span class="hl kwb">$nb, $base</span><span class="hl opt">);</span>
    <span class="hl kwc">my</span> <span class="hl kwb">$decr</span> <span class="hl opt">=</span> <span class="hl kwa">sub</span> <span class="hl opt">{</span> 
	<span class="hl opt">(</span><span class="hl kwb">$nb, $base</span><span class="hl opt">) = (</span><span class="hl kwb">$newnb, $newbase</span><span class="hl opt">);</span>
	<span class="hl kwb">$base</span> <span class="hl opt">&gt;=</span> <span class="hl num">1024</span> ? <span class="hl opt">(</span><span class="hl kwb">$newbase</span> <span class="hl opt">=</span> <span class="hl kwb">$base</span> <span class="hl kwd">/ 1024) : ($newnb = $nb /</span> <span class="hl num">1024</span><span class="hl opt">);</span>
    <span class="hl opt">};</span>
    <span class="hl kwa">foreach</span> <span class="hl opt">(</span><span class="hl str">&apos;&apos;</span><span class="hl opt">,</span> N<span class="hl opt">(</span><span class="hl str">&quot;KB&quot;</span><span class="hl opt">),</span> N<span class="hl opt">(</span><span class="hl str">&quot;MB&quot;</span><span class="hl opt">),</span> N<span class="hl opt">(</span><span class="hl str">&quot;GB&quot;</span><span class="hl opt">)) {</span>
	<span class="hl kwb">$decr</span><span class="hl opt">-&gt;();</span> 
	<span class="hl kwa">if</span> <span class="hl opt">(</span><span class="hl kwb">$newnb</span> <span class="hl opt">&lt;</span> <span class="hl num">1</span> <span class="hl opt">&amp;&amp;</span> <span class="hl kwb">$newnb</span> <span class="hl opt">*</span> <span class="hl kwb">$newbase</span> <span class="hl opt">&lt;</span> <span class="hl num">1</span><span class="hl opt">) {</span>
	    <span class="hl kwc">my</span> <span class="hl kwb">$v</span> <span class="hl opt">=</span> <span class="hl kwb">$nb</span> <span class="hl opt">*</span> <span class="hl kwb">$base</span><span class="hl opt">;</span>
	    <span class="hl kwc">my</span> <span class="hl kwb">$s</span> <span class="hl opt">=</span> <span class="hl kwb">$v</span> <span class="hl opt">&lt;</span> <span class="hl num">10</span> <span class="hl opt">&amp;&amp;</span> <span class="hl kwc">int</span><span class="hl opt">(</span><span class="hl num">10</span> <span class="hl opt">*</span> <span class="hl kwb">$v</span> <span class="hl opt">-</span> <span class="hl num">10</span> <span class="hl opt">*</span> <span class="hl kwc">int</span><span class="hl opt">(</span><span class="hl kwb">$v</span><span class="hl opt">));</span>
	    <span class="hl kwa">return</span> <span class="hl kwc">int</span><span class="hl opt">(</span><span class="hl kwb">$v</span><span class="hl opt">) . (</span><span class="hl kwb">$s</span> ? <span class="hl str">&quot;.</span><span class="hl ipl">$s</span><span class="hl str">&quot;</span> <span class="hl opt">:</span> <span class="hl str">&apos;&apos;</span><span class="hl opt">) .</span> <span class="hl kwb">$_</span><span class="hl opt">;</span>
	<span class="hl opt">}</span>
    <span class="hl opt">}</span>
    <span class="hl kwc">int</span><span class="hl opt">(</span><span class="hl kwb">$newnb</span> <span class="hl opt">*</span> <span class="hl kwb">$newbase</span><span class="hl opt">) .</span> N<span class="hl opt">(</span><span class="hl str">&quot;TB&quot;</span><span class="hl opt">);</span>
<span class="hl opt">}</span>

<span class="hl kwa">sub</span> formatTime <span class="hl opt">{</span>
    <span class="hl kwc">my</span> <span class="hl opt">(</span><span class="hl kwb">$s, $m, $h</span><span class="hl opt">) =</span> <span class="hl kwc">gmtime</span><span class="hl opt">(</span><span class="hl kwb">$_</span><span class="hl opt">[</span><span class="hl num">0</span><span class="hl opt">]);</span>
    <span class="hl kwa">if</span> <span class="hl opt">(</span><span class="hl kwb">$h</span><span class="hl opt">) {</span>
	<span class="hl kwc">sprintf</span> <span class="hl str">&quot;</span><span class="hl ipl">%02d</span><span class="hl str">:</span><span class="hl ipl">%02d</span><span class="hl str">&quot;</span><span class="hl opt">,</span> <span class="hl kwb">$h, $m</span><span class="hl opt">;</span>
    <span class="hl opt">}</span> <span class="hl kwa">elsif</span> <span class="hl opt">(</span><span class="hl kwb">$m</span> <span class="hl opt">&gt;</span> <span class="hl num">1</span><span class="hl opt">) {</span>
	N<span class="hl opt">(</span><span class="hl str">&quot;</span><span class="hl ipl">%d</span> <span class="hl str">minutes&quot;</span><span class="hl opt">,</span> <span class="hl kwb">$m</span><span class="hl opt">);</span>
    <span class="hl opt">}</span> <span class="hl kwa">elsif</span> <span class="hl opt">(</span><span class="hl kwb">$m</span> <span class="hl opt">==</span> <span class="hl num">1</span><span class="hl opt">) {</span>
	N<span class="hl opt">(</span><span class="hl str">&quot;1 minute&quot;</span><span class="hl opt">);</span>
    <span class="hl opt">}</span> <span class="hl kwa">else</span> <span class="hl opt">{</span>
	N<span class="hl opt">(</span><span class="hl str">&quot;</span><span class="hl ipl">%d</span> <span class="hl str">seconds&quot;</span><span class="hl opt">,</span> <span class="hl kwb">$s</span><span class="hl opt">);</span>
    <span class="hl opt">}</span>
<span class="hl opt">}</span>

<span class="hl kwa">sub</span> expand_symlinks_but_simple <span class="hl opt">{</span>
    <span class="hl kwc">my</span> <span class="hl opt">(</span><span class="hl kwb">$f</span><span class="hl opt">) =</span> <span class="hl kwb">&#64;_</span><span class="hl opt">;</span>
    <span class="hl kwc">my</span> <span class="hl kwb">$link</span> <span class="hl opt">=</span> <span class="hl kwc">readlink</span><span class="hl opt">(</span><span class="hl kwb">$f</span><span class="hl opt">);</span>
    <span class="hl kwc">my</span> <span class="hl kwb">$f2</span> <span class="hl opt">=</span> expand_symlinks<span class="hl opt">(</span><span class="hl kwb">$f</span><span class="hl opt">);</span>
    <span class="hl kwa">if</span> <span class="hl opt">(</span><span class="hl kwb">$link</span> <span class="hl opt">&amp;&amp;</span> <span class="hl kwb">$link</span> <span class="hl opt">!~</span> m<span class="hl opt">|/|) {</span>
	<span class="hl slc"># put back the last simple symlink</span>
	<span class="hl kwb">$f2</span> <span class="hl opt">=~</span> s<span class="hl opt">|</span>\Q<span class="hl kwb">$link\E$</span><span class="hl opt">|</span>basename<span class="hl opt">(</span><span class="hl kwb">$f</span><span class="hl opt">)|</span>e<span class="hl opt">;</span>
    <span class="hl opt">}</span>
    <span class="hl kwb">$f2</span><span class="hl opt">;</span>
<span class="hl opt">}</span>

<span class="hl kwa">sub</span> sync <span class="hl opt">{ &amp;</span>MDK<span class="hl opt">::</span>Common<span class="hl opt">::</span>System<span class="hl opt">::</span>sync <span class="hl opt">}</span>

<span class="hl kwa">BEGIN</span> <span class="hl opt">{</span> <span class="hl kwc">undef</span> <span class="hl opt">*</span>formatError <span class="hl opt">}</span>
<span class="hl kwa">sub</span> formatError <span class="hl opt">{</span>
    <span class="hl kwc">my</span> <span class="hl opt">(</span><span class="hl kwb">$err</span><span class="hl opt">) =</span> <span class="hl kwb">&#64;_</span><span class="hl opt">;</span>
    <span class="hl kwc">ref</span><span class="hl opt">(</span><span class="hl kwb">$err</span><span class="hl opt">)</span> <span class="hl kwc">eq</span> <span class="hl str">&apos;SCALAR&apos;</span> <span class="hl kwc">and</span> <span class="hl kwb">$err</span> <span class="hl opt">=</span> <span class="hl kwb">$$err</span><span class="hl opt">;</span>
    <span class="hl kwc">log</span><span class="hl opt">::</span>l<span class="hl opt">(</span><span class="hl str">&quot;error:</span> <span class="hl ipl">$err</span><span class="hl str">&quot;</span><span class="hl opt">);</span>
    <span class="hl opt">&amp;</span>MDK<span class="hl opt">::</span>Common<span class="hl opt">::</span>String<span class="hl opt">::</span>formatError<span class="hl opt">(</span><span class="hl kwb">$err</span><span class="hl opt">);</span>
<span class="hl opt">}</span>

<span class="hl slc"># Group the list by n. Returns a reference of lists of length n</span>
<span class="hl kwa">sub</span> group_n_lm <span class="hl opt">{</span>
    <span class="hl kwc">my</span> <span class="hl kwb">$n</span> <span class="hl opt">=</span> <span class="hl kwc">shift</span><span class="hl opt">;</span>
    <span class="hl kwc">my</span> <span class="hl kwb">&#64;l</span><span class="hl opt">;</span>
    <span class="hl kwc">push</span> <span class="hl kwb">&#64;l,</span> <span class="hl opt">[</span> <span class="hl kwc">splice</span><span class="hl opt">(</span><span class="hl kwb">&#64;_,</span> <span class="hl num">0</span><span class="hl opt">,</span> <span class="hl kwb">$n</span><span class="hl opt">) ]</span> <span class="hl kwa">while</span> <span class="hl kwb">&#64;_</span><span class="hl opt">;</span>
    <span class="hl kwb">&#64;l</span><span class="hl opt">;</span>
<span class="hl opt">}</span>

<span class="hl kwa">sub</span> join_lines <span class="hl opt">{</span>
    <span class="hl kwc">my</span> <span class="hl kwb">&#64;l</span><span class="hl opt">;</span>
    <span class="hl kwc">my</span> <span class="hl kwb">$s</span><span class="hl opt">;</span>
    <span class="hl kwa">foreach</span> <span class="hl opt">(</span><span class="hl kwb">&#64;_</span><span class="hl opt">) {</span>
	<span class="hl kwa">if</span> <span class="hl opt">(</span><span class="hl kwd">/^\s/</span><span class="hl opt">) {</span>
	    <span class="hl kwb">$s</span> <span class="hl opt">.=</span> <span class="hl kwb">$_</span><span class="hl opt">;</span>
	<span class="hl opt">}</span> <span class="hl kwa">else</span> <span class="hl opt">{</span>
	    <span class="hl kwc">push</span> <span class="hl kwb">&#64;l, $s</span> <span class="hl kwa">if</span> <span class="hl kwb">$s</span><span class="hl opt">;</span>
	    <span class="hl kwb">$s</span> <span class="hl opt">=</span> <span class="hl kwb">$_</span><span class="hl opt">;</span>
	<span class="hl opt">}</span>
    <span class="hl opt">}</span>
    <span class="hl kwb">&#64;l,</span> if_<span class="hl opt">(</span><span class="hl kwb">$s, $s</span><span class="hl opt">);</span>
<span class="hl opt">}</span>


<span class="hl kwa">sub</span> set_alternative <span class="hl opt">{</span>
    <span class="hl kwc">my</span> <span class="hl opt">(</span><span class="hl kwb">$command, $executable</span><span class="hl opt">) =</span> <span class="hl kwb">&#64;_</span><span class="hl opt">;</span>

    <span class="hl slc">#- check the existance of $executable as an alternative for $command</span>
    <span class="hl slc">#- (is this needed???)</span>
    run_program<span class="hl opt">::</span>rooted_get_stdout<span class="hl opt">($::</span>prefix<span class="hl opt">,</span> <span class="hl str">&apos;update-alternatives&apos;</span><span class="hl opt">,</span> <span class="hl str">&apos;--display&apos;</span><span class="hl opt">,</span> <span class="hl kwb">$command</span><span class="hl opt">) =~</span> <span class="hl kwd">/^\Q$executable /m</span> <span class="hl kwc">or</span> <span class="hl kwa">return</span><span class="hl opt">;</span>

    <span class="hl slc">#- this does not handle relative symlink, but neither does update-alternatives ;p</span>
    symlinkf <span class="hl kwb">$executable,</span> <span class="hl str">&quot;$::prefix/etc/alternatives/</span><span class="hl ipl">$command</span><span class="hl str">&quot;</span><span class="hl opt">;</span>
<span class="hl opt">}</span>

<span class="hl kwa">sub</span> files_exist <span class="hl opt">{</span> and_<span class="hl opt">(</span><span class="hl kwc">map</span> <span class="hl opt">{ -</span>f <span class="hl str">&quot;$::prefix</span><span class="hl ipl">$_</span><span class="hl str">&quot;</span> <span class="hl opt">}</span> <span class="hl kwb">&#64;_</span><span class="hl opt">) }</span>

<span class="hl kwa">sub</span> secured_file <span class="hl opt">{</span>
    <span class="hl kwc">my</span> <span class="hl opt">(</span><span class="hl kwb">$f</span><span class="hl opt">) =</span> <span class="hl kwb">&#64;_</span><span class="hl opt">;</span>
    c<span class="hl opt">::</span>is_secure_file<span class="hl opt">(</span><span class="hl kwb">$f</span><span class="hl opt">)</span> <span class="hl kwc">or die</span> <span class="hl str">&quot;can not ensure a safe</span> <span class="hl ipl">$f</span><span class="hl str">&quot;</span><span class="hl opt">;</span>
    <span class="hl kwb">$f</span><span class="hl opt">;</span>
<span class="hl opt">}</span>

<span class="hl kwa">sub</span> set_permissions <span class="hl opt">{</span>
    <span class="hl kwc">my</span> <span class="hl opt">(</span><span class="hl kwb">$file, $perms, $o_owner, $o_group</span><span class="hl opt">) =</span> <span class="hl kwb">&#64;_</span><span class="hl opt">;</span>
    <span class="hl slc"># We only need to set the permissions during installation to be able to</span>
    <span class="hl slc"># print test pages. After installation the devfsd daemon does the business</span>
    <span class="hl slc"># automatically.</span>
    <span class="hl kwa">return</span> <span class="hl num">1</span> <span class="hl kwa">unless</span> <span class="hl opt">$::</span>isInstall<span class="hl opt">;</span>
    <span class="hl kwa">if</span> <span class="hl opt">(</span><span class="hl kwb">$o_owner</span> <span class="hl opt">&amp;&amp;</span> <span class="hl kwb">$o_group</span><span class="hl opt">) {</span>
        run_program<span class="hl opt">::</span>rooted<span class="hl opt">($::</span>prefix<span class="hl opt">,</span> <span class="hl str">&quot;/bin/chown&quot;</span><span class="hl opt">,</span> <span class="hl str">&quot;</span><span class="hl ipl">$o_owner</span><span class="hl str">.</span><span class="hl ipl">$o_group</span><span class="hl str">&quot;</span><span class="hl opt">,</span> <span class="hl kwb">$file</span><span class="hl opt">)</span>
	    <span class="hl kwc">or die</span> <span class="hl str">&quot;Could not start chown!&quot;</span><span class="hl opt">;</span>
    <span class="hl opt">}</span> <span class="hl kwa">elsif</span> <span class="hl opt">(</span><span class="hl kwb">$o_owner</span><span class="hl opt">) {</span>
        run_program<span class="hl opt">::</span>rooted<span class="hl opt">($::</span>prefix<span class="hl opt">,</span> <span class="hl str">&quot;/bin/chown&quot;</span><span class="hl opt">,</span> <span class="hl kwb">$o_owner, $file</span><span class="hl opt">)</span>
	    <span class="hl kwc">or die</span> <span class="hl str">&quot;Could not start chown!&quot;</span><span class="hl opt">;</span>
    <span class="hl opt">}</span> <span class="hl kwa">elsif</span> <span class="hl opt">(</span><span class="hl kwb">$o_group</span><span class="hl opt">) {</span>
        run_program<span class="hl opt">::</span>rooted<span class="hl opt">($::</span>prefix<span class="hl opt">,</span> <span class="hl str">&quot;/bin/chgrp&quot;</span><span class="hl opt">,</span> <span class="hl kwb">$o_group, $file</span><span class="hl opt">)</span>
	    <span class="hl kwc">or die</span> <span class="hl str">&quot;Could not start chgrp!&quot;</span><span class="hl opt">;</span>
    <span class="hl opt">}</span>
    run_program<span class="hl opt">::</span>rooted<span class="hl opt">($::</span>prefix<span class="hl opt">,</span> <span class="hl str">&quot;/bin/chmod&quot;</span><span class="hl opt">,</span> <span class="hl kwb">$perms, $file</span><span class="hl opt">)</span>
	<span class="hl kwc">or die</span> <span class="hl str">&quot;Could not start chmod!&quot;</span><span class="hl opt">;</span>
<span class="hl opt">}</span>

<span class="hl kwa">sub</span> release_file <span class="hl opt">{</span>
    <span class="hl kwc">my</span> <span class="hl opt">(</span><span class="hl kwb">$o_dir</span><span class="hl opt">) =</span> <span class="hl kwb">&#64;_</span><span class="hl opt">;</span>
    find <span class="hl opt">{ -</span>r <span class="hl str">&quot;</span><span class="hl ipl">$o_dir$_</span><span class="hl str">&quot;</span> <span class="hl opt">}</span> 
      <span class="hl kwc">map</span> <span class="hl opt">{ (</span><span class="hl str">&quot;/root/drakx/</span><span class="hl ipl">$_</span><span class="hl str">.upgrading&quot;</span><span class="hl opt">,</span> <span class="hl str">&quot;/etc/</span><span class="hl ipl">$_</span><span class="hl str">&quot;</span><span class="hl opt">) }</span>
	<span class="hl str">&apos;mandrakelinux-release&apos;</span><span class="hl opt">,</span> <span class="hl str">&apos;mandrake-release&apos;</span><span class="hl opt">,</span> <span class="hl str">&apos;conectiva-release&apos;</span><span class="hl opt">,</span> <span class="hl str">&apos;release&apos;</span><span class="hl opt">,</span> <span class="hl str">&apos;redhat-release&apos;</span><span class="hl opt">;</span>
<span class="hl opt">}</span>

<span class="hl kwa">sub</span> mandrake_release <span class="hl opt">{</span>
    <span class="hl kwc">my</span> <span class="hl opt">(</span><span class="hl kwb">$o_dir</span><span class="hl opt">) =</span> <span class="hl kwb">&#64;_</span><span class="hl opt">;</span>
    <span class="hl kwc">my</span> <span class="hl kwb">$f</span> <span class="hl opt">=</span> release_file<span class="hl opt">(</span><span class="hl kwb">$o_dir</span><span class="hl opt">);</span>
    <span class="hl kwb">$f</span> <span class="hl opt">&amp;&amp;</span> chomp_<span class="hl opt">(</span>cat_<span class="hl opt">(</span><span class="hl str">&quot;</span><span class="hl ipl">$o_dir$f</span><span class="hl str">&quot;</span><span class="hl opt">));</span>
<span class="hl opt">}</span>

<span class="hl kwa">sub</span> require_root_capability<span class="hl opt">() {</span>
    <span class="hl kwa">return if</span> <span class="hl opt">$::</span>testing <span class="hl opt">|| !$&gt;;</span> <span class="hl slc"># we&apos;re already root</span>
    <span class="hl kwa">if</span> <span class="hl opt">(</span>check_for_xserver<span class="hl opt">()) {</span>
	<span class="hl kwa">if</span> <span class="hl opt">(</span>fuzzy_pidofs<span class="hl opt">(</span><span class="hl kwd">qr/\bkwin\b/</span><span class="hl opt">) &gt;</span> <span class="hl num">0</span><span class="hl opt">) {</span>
	    <span class="hl kwc">exec</span><span class="hl opt">(</span><span class="hl str">&quot;kdesu&quot;</span><span class="hl opt">,</span> <span class="hl str">&quot;--ignorebutton&quot;</span><span class="hl opt">,</span> <span class="hl str">&quot;-c&quot;</span><span class="hl opt">,</span> <span class="hl str">&quot;</span><span class="hl ipl">$0</span> <span class="hl str"></span><span class="hl ipl">&#64;ARGV</span><span class="hl str">&quot;</span><span class="hl opt">)</span> <span class="hl kwc">or die</span> N<span class="hl opt">(</span><span class="hl str">&quot;kdesu missing&quot;</span><span class="hl opt">);</span>
	<span class="hl opt">}</span>
    <span class="hl opt">}</span>
    <span class="hl kwc">exec</span> <span class="hl opt">{</span> <span class="hl str">&apos;consolehelper&apos;</span> <span class="hl opt">}</span> <span class="hl kwb">$0, &#64;ARGV</span> <span class="hl kwc">or die</span> N<span class="hl opt">(</span><span class="hl str">&quot;consolehelper missing&quot;</span><span class="hl opt">);</span>

    <span class="hl slc"># still not root ?</span>
    <span class="hl kwc">die</span> <span class="hl str">&quot;you must be root to run this program&quot;</span> <span class="hl kwa">if</span> <span class="hl opt">$&gt;;</span>
<span class="hl opt">}</span>

<span class="hl kwa">sub</span> check_for_xserver<span class="hl opt">() {</span>
    <span class="hl kwa">if</span> <span class="hl opt">(!</span><span class="hl kwc">defined</span> <span class="hl opt">$::</span>xtest<span class="hl opt">) {</span>
	<span class="hl opt">$::</span>xtest <span class="hl opt">=</span> <span class="hl num">0</span><span class="hl opt">;</span>         
	<span class="hl kwc">eval</span> <span class="hl opt">{</span> 
	    <span class="hl kwa">require</span> xf86misc<span class="hl opt">::</span>main<span class="hl opt">;</span> 
	    <span class="hl opt">$::</span>xtest <span class="hl opt">=</span> xf86misc<span class="hl opt">::</span>main<span class="hl opt">::</span>Xtest<span class="hl opt">(</span><span class="hl kwb">$ENV</span><span class="hl opt">{</span>DISPLAY<span class="hl opt">});</span>
	<span class="hl opt">}</span> <span class="hl kwa">if</span> <span class="hl kwb">$ENV</span><span class="hl opt">{</span>DISPLAY<span class="hl opt">};</span>
    <span class="hl opt">}</span>
    <span class="hl kwa">return</span> <span class="hl opt">$::</span>xtest<span class="hl opt">;</span>
<span class="hl opt">}</span>

<span class="hl slc">#- special unpack</span>
<span class="hl slc">#- - returning an array refs for each element like &quot;s10&quot;</span>
<span class="hl slc">#- - handling things like s10* at the end of the format</span>
<span class="hl kwa">sub</span> unpack_with_refs <span class="hl opt">{</span>
    <span class="hl kwc">my</span> <span class="hl opt">(</span><span class="hl kwb">$format, $s</span><span class="hl opt">) =</span> <span class="hl kwb">&#64;_</span><span class="hl opt">;</span>
    <span class="hl kwc">my</span> <span class="hl kwb">$initial_format</span> <span class="hl opt">=</span> <span class="hl kwb">$format</span><span class="hl opt">;</span>
    <span class="hl kwc">my</span> <span class="hl kwb">&#64;r</span><span class="hl opt">;</span>
    <span class="hl kwa">while</span> <span class="hl opt">(</span><span class="hl kwb">$format</span> <span class="hl opt">=~</span> <span class="hl kwd">s/\s*(\w(\d*))(\*?)\s*//</span><span class="hl opt">) {</span>
	<span class="hl kwc">my</span> <span class="hl opt">(</span><span class="hl kwb">$sub_format, $nb, $many</span><span class="hl opt">) = (</span><span class="hl kwb">$1, $2, $3</span><span class="hl opt">);</span>
	<span class="hl kwb">$many</span> <span class="hl opt">&amp;&amp;</span> <span class="hl kwb">$format</span> <span class="hl kwc">and</span> internal_error<span class="hl opt">(</span><span class="hl str">&quot;bad * in the middle of format in</span> <span class="hl ipl">$initial_format</span><span class="hl str">&quot;</span><span class="hl opt">);</span>

	<span class="hl kwc">my</span> <span class="hl kwb">$done</span> <span class="hl opt">=</span> <span class="hl kwb">$many</span> <span class="hl opt">&amp;&amp; !</span><span class="hl kwc">length</span><span class="hl opt">(</span><span class="hl kwb">$s</span><span class="hl opt">);</span>
	<span class="hl kwa">while</span> <span class="hl opt">(!</span><span class="hl kwb">$done</span><span class="hl opt">) {</span>
	    <span class="hl kwc">my</span> <span class="hl kwb">&#64;l</span> <span class="hl opt">=</span> <span class="hl kwc">unpack</span><span class="hl opt">(</span><span class="hl str">&quot;</span><span class="hl ipl">$sub_format</span> <span class="hl str">a*&quot;</span><span class="hl opt">,</span> <span class="hl kwb">$s</span><span class="hl opt">);</span>
	    <span class="hl kwb">$s</span> <span class="hl opt">=</span> <span class="hl kwc">pop</span> <span class="hl kwb">&#64;l</span><span class="hl opt">;</span>
	    <span class="hl kwc">push</span> <span class="hl kwb">&#64;r, $nb</span> ? \<span class="hl kwb">&#64;l</span> <span class="hl opt">:</span> <span class="hl kwb">&#64;l</span><span class="hl opt">;</span>
	    <span class="hl kwb">$done</span> <span class="hl opt">= !</span><span class="hl kwb">$many</span> <span class="hl opt">|| !</span><span class="hl kwc">length</span><span class="hl opt">(</span><span class="hl kwb">$s</span><span class="hl opt">);</span>
	<span class="hl opt">}</span>
    <span class="hl opt">}</span>
    <span class="hl kwb">&#64;r</span><span class="hl opt">;</span>
<span class="hl opt">}</span>

<span class="hl kwa">sub</span> md5file <span class="hl opt">{</span>
    <span class="hl kwa">require</span> Digest<span class="hl opt">::</span>MD5<span class="hl opt">;</span>
    <span class="hl kwc">my</span> <span class="hl kwb">&#64;md5</span> <span class="hl opt">=</span> <span class="hl kwc">map</span> <span class="hl opt">{</span>
        <span class="hl kwc">my</span> <span class="hl kwb">$sum</span><span class="hl opt">;</span>
	<span class="hl kwa">if</span> <span class="hl opt">(</span><span class="hl kwc">open</span><span class="hl opt">(</span><span class="hl kwc">my</span> <span class="hl kwb">$FILE, $_</span><span class="hl opt">)) {</span>
            <span class="hl kwc">binmode</span><span class="hl opt">(</span><span class="hl kwb">$FILE</span><span class="hl opt">);</span>
            <span class="hl kwb">$sum</span> <span class="hl opt">=</span> Digest<span class="hl opt">::</span>MD5-<span class="hl opt">&gt;</span><span class="hl kwd">new</span><span class="hl opt">-&gt;</span><span class="hl kwd">addfile</span><span class="hl opt">(</span><span class="hl kwb">$FILE</span><span class="hl opt">)-&gt;</span><span class="hl kwd">hexdigest</span><span class="hl opt">;</span>
            <span class="hl kwc">close</span><span class="hl opt">(</span><span class="hl kwb">$FILE</span><span class="hl opt">);</span>
        <span class="hl opt">}</span>
        <span class="hl kwb">$sum</span><span class="hl opt">;</span>
    <span class="hl opt">}</span> <span class="hl kwb">&#64;_</span><span class="hl opt">;</span>
    <span class="hl kwa">return</span> <span class="hl kwc">wantarray</span><span class="hl opt">()</span> ? <span class="hl kwb">&#64;md5</span> <span class="hl opt">:</span> <span class="hl kwb">$md5</span><span class="hl opt">[</span><span class="hl num">0</span><span class="hl opt">];</span>
<span class="hl opt">}</span>

<span class="hl num">1</span><span class="hl opt">;</span>
</code></pre></td></tr></table>
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