4 use Fcntl qw/O_RDONLY/;
9 $config_path = '/etc/debbugs';
10 $lib_path = '/usr/lib/debbugs';
11 require "$lib_path/errorlib";
13 use Debbugs::Versions;
14 use Debbugs::MIME qw(decode_rfc1522);
16 $MLDBM::RemoveTaint = 1;
18 my $common_archive = 0;
19 my $common_repeatmerged = 1;
20 my %common_include = ();
21 my %common_exclude = ();
22 my $common_raw_sort = 0;
23 my $common_bug_reverse = 0;
25 my %common_reverse = (
30 'show_list_header' => 1,
31 'show_list_footer' => 1,
34 sub exact_field_match {
35 my ($field, $values, $status) = @_;
36 my @values = @$values;
37 my @ret = grep {$_ eq $status->{$field} } @values;
40 sub contains_field_match {
41 my ($field, $values, $status) = @_;
42 foreach my $data (@$values) {
43 return 1 if (index($status->{$field}, $data) > -1);
48 sub detect_user_agent {
49 my $userAgent = $ENV{HTTP_USER_AGENT};
50 return { 'name' => 'unknown' } unless defined $userAgent;
51 return { 'name' => 'links' } if ( $userAgent =~ m,^ELinks,);
52 return { 'name' => 'lynx' } if ( $userAgent =~ m,^Lynx,);
53 return { 'name' => 'wget' } if ( $userAgent =~ m,^Wget,);
54 return { 'name' => 'gecko' } if ( $userAgent =~ m,^Mozilla.* Gecko/,);
55 return { 'name' => 'ie' } if ( $userAgent =~ m,^.*MSIE.*,);
56 return { 'name' => 'unknown' };
60 'subject' => \&contains_field_match,
62 my ($field, $values, $status) = @_;
63 my %values = map {$_=>1} @$values;
64 foreach my $t (split /\s+/, $status->{$field}) {
65 return 1 if (defined $values{$t});
69 'severity' => \&exact_field_match,
70 'pending' => \&exact_field_match,
71 'originator' => \%contains_field_match,
72 'forwarded' => \%contains_field_match,
73 'owner' => \%contains_field_match,
75 my @common_grouping = ( 'severity', 'pending' );
76 my %common_grouping_order = (
77 'pending' => [ qw( pending forwarded pending-fixed fixed done absent ) ],
78 'severity' => \@debbugs::gSeverityList,
80 my %common_grouping_display = (
81 'pending' => 'Status',
82 'severity' => 'Severity',
84 my %common_headers = (
86 "pending" => "outstanding",
87 "pending-fixed" => "pending upload",
88 "fixed" => "fixed in NMU",
90 "forwarded" => "forwarded to upstream software authors",
91 "absent" => "not applicable to this version",
93 'severity' => \%debbugs::gSeverityDisplay,
102 sub array_option($) {
105 @vals = ( $val ) if (ref($val) eq "" && $val );
106 @vals = ( $$val ) if (ref($val) eq "SCALAR" && $$val );
107 @vals = @{$val} if (ref($val) eq "ARRAY" );
111 sub filter_include_exclude($\%) {
112 my ($val, $filter_map) = @_;
113 my @vals = array_option($val);
115 if (/^([^:]*):(.*)$/) { if ($1 eq 'subj') { ['subject', $2]; } else { [$1, $2] } } else { ['tags', $_] }
116 } split /[\s,]+/, join ',', @vals;
117 foreach my $data (@data) {
118 &quitcgi("Invalid filter key: '$data->[0]'") if (!exists($field_match{$data->[0]}));
119 push @{$filter_map->{$data->[0]}}, $data->[1];
123 sub filter_option($$\%) {
124 my ($key, $val, $filter_map) = @_;
125 my @vals = array_option($val);
126 foreach $val (@vals) {
127 push @{$filter_map->{$key}}, $val;
132 my ($opt, $val) = @_;
133 if ($opt =~ m/^show_list_(foot|head)er$/) { $common{$opt} = $val; }
134 if ($opt eq "archive") { $common_archive = $val; }
135 if ($opt eq "repeatmerged") { $common_repeatmerged = $val; }
136 if ($opt eq "exclude") {
137 filter_include_exclude($val, %common_exclude);
139 if ($opt eq "include") {
140 filter_include_exclude($val, %common_include);
142 if ($opt eq "raw") { $common_raw_sort = $val; }
143 if ($opt eq "bug-rev") { $common_bug_reverse = $val; }
144 if ($opt eq "pend-rev") { $common_reverse{pending} = $val; }
145 if ($opt eq "sev-rev") { $common_reverse{severity} = $val; }
146 if ($opt eq "pend-exc") {
147 filter_option('pending', $val, %common_exclude);
149 if ($opt eq "pend-inc") {
150 filter_option('pending', $val, %common_include);
152 if ($opt eq "sev-exc") {
153 filter_option('severity', $val, %common_exclude);
155 if ($opt eq "sev-inc") {
156 filter_option('severity', $val, %common_include);
158 if ($opt eq "version") { $common_version = $val; }
159 if ($opt eq "dist") { $common_dist = $val; }
160 if ($opt eq "arch") { $common_arch = $val; }
164 my ($in, $key, $val, %ret);
165 if (defined $ENV{"QUERY_STRING"} && $ENV{"QUERY_STRING"} ne "") {
166 $in=$ENV{QUERY_STRING};
167 } elsif(defined $ENV{"REQUEST_METHOD"}
168 && $ENV{"REQUEST_METHOD"} eq "POST")
170 read(STDIN,$in,$ENV{CONTENT_LENGTH});
174 foreach (split(/[&;]/,$in)) {
176 ($key, $val) = split(/=/,$_,2);
177 $key=~s/%(..)/pack("c",hex($1))/ge;
178 $val=~s/%(..)/pack("c",hex($1))/ge;
179 if ( exists $ret{$key} ) {
180 if ( !exists $ret{"&$key"} ) {
181 $ret{"&$key"} = [ $ret{$key} ];
183 push @{$ret{"&$key"}},$val;
187 $debug = 1 if (defined $ret{"debug"} && $ret{"debug"} eq "aj");
193 print "Content-Type: text/html\n\n";
194 print "<HTML><HEAD><TITLE>Error</TITLE></HEAD><BODY>\n";
195 print "An error occurred. Dammit.\n";
196 print "Error was: $msg.\n";
197 print "</BODY></HTML>\n";
203 # my $Archive = $common_archive ? "archive" : "";
204 # print header . start_html("Sorry");
205 # print "Sorry bug #$msg doesn't seem to be in the $Archive database.\n";
210 # Split a package string from the status file into a list of package names.
213 return unless defined $pkgs;
214 return map lc, split /[ \t?,()]+/, $pkgs;
220 return () unless defined $addr;
221 return @{$_parsedaddrs{$addr}} if exists $_parsedaddrs{$addr};
222 @{$_parsedaddrs{$addr}} = Mail::Address->parse($addr);
223 return @{$_parsedaddrs{$addr}};
226 # Generate a comma-separated list of HTML links to each package given in
227 # $pkgs. $pkgs may be empty, in which case an empty string is returned, or
228 # it may be a comma-separated list of package names.
229 sub htmlpackagelinks {
231 return unless defined $pkgs and $pkgs ne '';
233 my @pkglist = splitpackages($pkgs);
235 my $openstrong = $strong ? '<strong>' : '';
236 my $closestrong = $strong ? '</strong>' : '';
238 return 'Package' . (@pkglist > 1 ? 's' : '') . ': ' .
241 '<a href="' . pkgurl($_) . '">' .
242 $openstrong . htmlsanit($_) . $closestrong . '</a>'
247 # Generate a comma-separated list of HTML links to each maintainer given in
248 # $maints, which should be a comma-separated list of RFC822 addresses.
250 my ($prefixfunc, $maints) = @_;
251 if (defined $maints and $maints ne '') {
252 my @maintaddrs = getparsedaddrs($maints);
253 my $prefix = (ref $prefixfunc) ? $prefixfunc->(scalar @maintaddrs)
256 join ', ', map { sprintf '<a href="%s">%s</a>',
257 mainturl($_->address),
258 htmlsanit($_->format) || '(unknown)'
261 my $prefix = (ref $prefixfunc) ? $prefixfunc->(1) : $prefixfunc;
262 return sprintf '%s<a href="%s">(unknown)</a>', $prefix, mainturl('');
268 my %status = %{getbugstatus($ref)};
269 return htmlindexentrystatus(%status) if (%status);
273 sub htmlindexentrystatus {
279 if ($status{severity} eq 'normal') {
281 } elsif (isstrongseverity($status{severity})) {
282 $showseverity = "<strong>Severity: $status{severity}</strong>;\n";
284 $showseverity = "Severity: <em>$status{severity}</em>;\n";
287 $result .= htmlpackagelinks($status{"package"}, 1);
288 $result .= $showseverity;
289 $result .= "Reported by: <a href=\"" . submitterurl($status{originator})
290 . "\">" . htmlsanit($status{originator}) . "</a>";
291 $result .= ";\nOwned by: " . htmlsanit($status{owner})
292 if length $status{owner};
293 $result .= ";\nTags: <strong>"
294 . htmlsanit(join(", ", sort(split(/\s+/, $status{tags}))))
296 if (length($status{tags}));
298 my @merged= split(/ /,$status{mergedwith});
299 my $mseparator= ";\nmerged with ";
300 for my $m (@merged) {
301 $result .= $mseparator."<A href=\"" . bugurl($m) . "\">#$m</A>";
305 if (@{$status{found_versions}}) {
306 $result .= ";\nfound in ";
307 $result .= (@{$status{found_versions}} == 1) ? 'version '
309 $result .= join ', ', map htmlsanit($_), @{$status{found_versions}};
312 if (@{$status{fixed_versions}}) {
313 $result .= ";\n<strong>fixed</strong> in ";
314 $result .= (@{$status{fixed_versions}} == 1) ? 'version '
316 $result .= join ', ', map htmlsanit($_), @{$status{fixed_versions}};
317 if (length($status{done})) {
318 $result .= ' by ' . htmlsanit($status{done});
320 } elsif (length($status{done})) {
321 $result .= ";\n<strong>Done:</strong> " . htmlsanit($status{done});
322 $days = ceil($debbugs::gRemoveAge - -M buglog($status{id}));
324 $result .= ";\n<strong>Will be archived:</strong>" . ( $days == 0 ? " today" : $days == 1 ? " in $days day" : " in $days days" );
326 $result .= ";\n<strong>Archived</strong>";
330 unless (length($status{done})) {
331 if (length($status{forwarded})) {
332 $result .= ";\n<strong>Forwarded</strong> to "
333 . maybelink($status{forwarded});
335 my $daysold = int((time - $status{date}) / 86400); # seconds to days
339 $font = "em" if ($daysold > 30);
340 $font = "strong" if ($daysold > 60);
341 $efont = "</$font>" if ($font);
342 $font = "<$font>" if ($font);
344 my $yearsold = int($daysold / 365);
345 $daysold -= $yearsold * 365;
347 $result .= ";\n $font";
349 push @age, "1 year" if ($yearsold == 1);
350 push @age, "$yearsold years" if ($yearsold > 1);
351 push @age, "1 day" if ($daysold == 1);
352 push @age, "$daysold days" if ($daysold > 1);
353 $result .= join(" and ", @age);
354 $result .= " old$efont";
365 $args .= "&archive=yes" if $common_archive;
366 $args .= "&repeatmerged=no" unless $common_repeatmerged;
367 $args .= "&version=$common_version" if defined $common_version;
368 $args .= "&dist=$common_dist" if defined $common_dist;
369 $args .= "&arch=$common_arch" if defined $common_arch;
374 my $ref = shift || "";
375 my $params = "submitter=" . emailfromrfc822($ref);
376 $params .= urlargs();
377 return urlsanit("pkgreport.cgi" . "?" . $params);
381 my $ref = shift || "";
382 my $params = "maint=" . emailfromrfc822($ref);
383 $params .= urlargs();
384 return urlsanit("pkgreport.cgi" . "?" . $params);
389 my $params = "pkg=$ref";
390 $params .= urlargs();
391 return urlsanit("pkgreport.cgi" . "?" . "$params");
396 my $params = "src=$ref";
397 $params .= urlargs();
398 return urlsanit("pkgreport.cgi" . "?" . "$params");
403 my $params = "tag=$ref";
404 $params .= urlargs();
405 return urlsanit("pkgreport.cgi" . "?" . "$params");
413 my %saniarray = ('<','lt', '>','gt', '&','amp', '"','quot');
414 $url =~ s/([<>&"])/\&$saniarray{$1};/g;
419 my %saniarray = ('<','lt', '>','gt', '&','amp', '"','quot');
420 my $in = shift || "";
421 $in =~ s/([<>&"])/\&$saniarray{$1};/g;
427 if ($in =~ /^[a-zA-Z0-9+.-]+:/) { # RFC 1738 scheme
428 return qq{<a href="$in">} . htmlsanit($in) . '</a>';
430 return htmlsanit($in);
436 my $params = "bug=$ref";
437 foreach my $val (@_) {
438 $params .= "\&msg=$1" if ($val =~ /^msg=([0-9]+)/);
439 $params .= "\&archive=yes" if (!$common_archive && $val =~ /^archive.*$/);
441 $params .= "&archive=yes" if ($common_archive);
442 $params .= "&repeatmerged=no" unless ($common_repeatmerged);
444 return urlsanit("bugreport.cgi" . "?" . "$params");
449 my $params = "bug=$ref";
451 foreach my $val (@_) {
452 $params .= "\&$1=$2" if ($val =~ /^(msg|att)=([0-9]+)/);
453 $filename = $1 if ($val =~ /^filename=(.*)$/);
455 $params .= "&archive=yes" if ($common_archive);
457 $pathinfo = "/$filename" if $filename ne '';
459 return urlsanit("bugreport.cgi$pathinfo?$params");
464 return urlsanit("bugreport.cgi" . "?" . "bug=$ref&mbox=yes");
468 return @{getbugs(sub { 1 })};
471 sub bugmatches(\%\%) {
472 my ($hash, $status) = @_;
473 foreach my $key( keys( %$hash ) ) {
474 my $value = $hash->{$key};
475 my $sub = $field_match{$key};
476 return 1 if ($sub->($key, $value, $status));
481 my ($bug, %status) = @_;
483 if (%common_include) {
484 return 1 if (!bugmatches(%common_include, %status));
486 if (%common_exclude) {
487 return 1 if (bugmatches(%common_exclude, %status));
489 my @merged = sort {$a<=>$b} $bug, split(/ /, $status{mergedwith});
490 return 1 unless ($common_repeatmerged || !$seenmerged{$merged[0]});
491 $seenmerged{$merged[0]} = 1;
506 return "<HR><H2>No reports found!</H2></HR>\n";
509 if ( $common_bug_reverse ) {
510 @bugs = sort {$b<=>$a} @bugs;
512 @bugs = sort {$a<=>$b} @bugs;
515 foreach my $bug (@bugs) {
516 my %status = %{getbugstatus($bug)};
518 next if bugfilter($bug, %status);
520 my $html = sprintf "<li><a href=\"%s\">#%d: %s</a>\n<br>",
521 bugurl($bug), $bug, htmlsanit($status{subject});
522 $html .= htmlindexentrystatus(\%status) . "\n";
523 my $key = join( '_', map( {$status{$_}} @common_grouping ) );
524 $section{$key} .= $html;
526 foreach my $grouping ( @common_grouping ) {
527 $count{"${grouping}_$status{$grouping}"}++;
529 $anydone = 1 if $status{pending} eq 'done';
530 push @status, [ $bug, \%status, $html ];
534 if ($common_raw_sort) {
535 $result .= "<UL>\n" . join("", map( { $_->[ 2 ] } @status ) ) . "</UL>\n";
537 my (@order, @headers);
538 for( my $i = 0; $i < @common_grouping; $i++ ) {
539 my $grouping_name = $common_grouping[ $i ];
540 my @items = @{ $common_grouping_order{ $grouping_name } };
541 @items = reverse( @items ) if ( $common_reverse{ $grouping_name } );
545 foreach my $grouping ( @items ) {
546 push @neworder, map( { "${_}_$grouping" } @order );
547 push @newheaders, map( { "$_ - $common_headers{$grouping_name}{$grouping}" } @headers );
550 @headers = @newheaders;
553 push @headers, map( { $common_headers{$common_grouping[$i]}{$_} } @items );
557 for ( my $i = 0; $i < @order; $i++ ) {
558 my $order = $order[ $i ];
559 next unless defined $section{$order};
560 my $count = $count{"_$order"};
561 my $bugs = $count == 1 ? "bug" : "bugs";
562 $header .= "<li><a href=\"#$order\">$headers[$i]</a> ($count $bugs)</li>\n";
564 $header .= "</ul>\n";
565 for ( my $i = 0; $i < @order; $i++ ) {
566 my $order = $order[ $i ];
567 next unless defined $section{$order};
568 if ($common{show_list_header}) {
569 my $count = $count{"_$order"};
570 my $bugs = $count == 1 ? "bug" : "bugs";
571 $result .= "<HR><H2><a name=\"$order\"></a>$headers[$i] ($count $bugs)</H2>\n";
573 $result .= "<HR><H2>$headers[$i]</H2>\n";
576 $result .= $section{$order};
577 $result .= "</UL>\n";
580 foreach my $grouping ( @common_grouping ) {
581 my $local_result = '';
582 foreach my $key ( @{$common_grouping_order{ $grouping }} ) {
583 my $count = $count{"${grouping}_$key"};
585 $local_result .= "<li>$count $common_headers{$grouping}{$key}</li>\n";
587 if ( $local_result ) {
588 $footer .= "<li>$common_grouping_display{$grouping}<ul>\n$local_result</ul></li>\n";
591 $footer .= "</ul>\n";
594 $result = $header . $result if ( $common{show_list_header} );
595 $result .= $debbugs::gHTMLExpireNote if $gRemoveAge and $anydone;
596 $result .= "<hr>" . $footer if ( $common{show_list_footer} );
602 if ($common_archive) {
603 open I, "<$debbugs::gSpoolDir/index.archive"
604 or &quitcgi("$debbugs::gSpoolDir/index.archive: $!");
606 open I, "<$debbugs::gSpoolDir/index.db"
607 or &quitcgi("$debbugs::gSpoolDir/index.db: $!");
613 if (m/^(\S+)\s+(\d+)\s+(\d+)\s+(\S+)\s+\[\s*([^]]*)\s*\]\s+(\w+)\s+(.*)$/) {
614 my @x = $bugfunc->(pkg => $1, bug => $2, status => $4,
615 submitter => $5, severity => $6, tags => $7);
617 $count{$_}++ foreach @x;
630 if (!$common_archive && defined $opt &&
631 -e "$debbugs::gSpoolDir/by-$opt.idx")
634 print STDERR "optimized\n" if ($debug);
635 tie %lookup, DB_File => "$debbugs::gSpoolDir/by-$opt.idx", O_RDONLY
636 or die "$0: can't open $debbugs::gSpoolDir/by-$opt.idx ($!)\n";
637 while ($key = shift) {
638 my $bugs = $lookup{$key};
640 push @result, (unpack 'N*', $bugs);
644 print STDERR "done optimized\n" if ($debug);
646 if ( $common_archive ) {
647 open I, "<$debbugs::gSpoolDir/index.archive"
648 or &quitcgi("$debbugs::gSpoolDir/index.archive: $!");
650 open I, "<$debbugs::gSpoolDir/index.db"
651 or &quitcgi("$debbugs::gSpoolDir/index.db: $!");
654 if (m/^(\S+)\s+(\d+)\s+(\d+)\s+(\S+)\s+\[\s*([^]]*)\s*\]\s+(\w+)\s+(.*)$/) {
655 if ($bugfunc->(pkg => $1, bug => $2, status => $4,
656 submitter => $5, severity => $6, tags => $7))
664 @result = sort {$a <=> $b} @result;
668 sub emailfromrfc822 {
670 $email =~ s/\s*\(.*\)\s*//;
671 $email = $1 if ($email =~ m/<(.*)>/);
679 while ($input =~ m/\W/) {
680 $encoded.=$`.sprintf("-%02x_",unpack("C",$&));
685 $encoded =~ s/-2e_/\./g;
686 $encoded =~ s/^([^,]+)-20_-3c_(.*)-40_(.*)-3e_/$1,$2,$3,/;
687 $encoded =~ s/^(.*)-40_(.*)-20_-28_([^,]+)-29_$/,$1,$2,$3/;
688 $encoded =~ s/-20_/_/g;
689 $encoded =~ s/-([^_]+)_-/-$1/g;
695 return $_maintainer if $_maintainer;
698 open(MM,"$gMaintainerFile") or &quitcgi("open $gMaintainerFile: $!");
700 next unless m/^(\S+)\s+(\S.*\S)\s*$/;
706 if (defined $gMaintainerFileOverride) {
707 open(MM,"$gMaintainerFileOverride") or &quitcgi("open $gMaintainerFileOverride: $!");
709 next unless m/^(\S+)\s+(\S.*\S)\s*$/;
716 $_maintainer = \%maintainer;
723 return $_pkgsrc if $_pkgsrc;
724 return {} unless defined $gPackageSource;
728 open(MM,"$gPackageSource") or &quitcgi("open $gPackageSource: $!");
730 next unless m/^(\S+)\s+(\S+)\s+(\S.*\S)\s*$/;
731 ($a,$b,$c)=($1,$2,$3);
734 $pkgcomponent{$a}= $b;
738 $_pkgcomponent = \%pkgcomponent;
742 sub getpkgcomponent {
743 return $_pkgcomponent if $_pkgcomponent;
745 return $_pkgcomponent;
750 return $_pseudodesc if $_pseudodesc;
753 open(PSEUDO, "< $gPseudoDescFile") or &quitcgi("open $gPseudoDescFile: $!");
755 next unless m/^(\S+)\s+(\S.*\S)\s*$/;
756 $pseudodesc{lc $1} = $2;
759 $_pseudodesc = \%pseudodesc;
768 my $location = getbuglocation( $bugnum, 'summary' );
769 return {} if ( !$location );
770 %status = %{ readbug( $bugnum, $location ) };
771 $status{ id } = $bugnum;
773 $status{found_versions} = [];
774 $status{fixed_versions} = [];
775 if (defined $gVersionBugsDir and
776 (defined $common_version or defined $common_dist)) {
777 my $bughash = get_hashname($bugnum);
778 if (open BUGVER, "< $gVersionBugsDir/$bughash/$bugnum.versions") {
781 if (/^Found-in: (.*)/i) {
782 $status{found_versions} = [split ' ', $1];
783 } elsif (/^Fixed-in: (.*)/i) {
784 $status{fixed_versions} = [split ' ', $1];
791 $status{tags} = $status{keywords};
792 my %tags = map { $_ => 1 } split ' ', $status{tags};
794 $status{"package"} =~ s/\s*$//;
795 $status{"package"} = 'unknown' if ($status{"package"} eq '');
796 $status{"severity"} = 'normal' if ($status{"severity"} eq '');
798 $status{"pending"} = 'pending';
799 $status{"pending"} = 'forwarded' if (length($status{"forwarded"}));
800 $status{"pending"} = 'pending-fixed' if ($tags{pending});
801 $status{"pending"} = 'fixed' if ($tags{fixed});
804 if (defined $common_version) {
805 $version = $common_version;
806 } elsif (defined $common_dist) {
807 $version = getversion($status{package}, $common_dist, $common_arch);
810 if (defined $version) {
811 my $buggy = buggyversion($bugnum, $version, \%status);
812 if ($buggy eq 'absent') {
813 $status{"pending"} = 'absent';
814 } elsif ($buggy eq 'fixed') {
815 $status{"pending"} = 'done';
819 if (length($status{done}) and
820 (not defined $version or not @{$status{fixed_versions}})) {
821 $status{"pending"} = 'done';
830 my %pkgsrc = %{getpkgsrc()};
832 foreach ( keys %pkgsrc ) {
833 push @pkgs, $_ if $pkgsrc{$_} eq $src;
840 my $location = getbuglocation($bugnum, 'log');
841 return getbugcomponent($bugnum, 'log', $location) if ($location);
842 $location = getbuglocation($bugnum, 'log.gz');
843 return getbugcomponent($bugnum, 'log.gz', $location);
848 my ($bug, $ver, $status) = @_;
849 return '' unless defined $gVersionPackagesDir;
850 my $src = getpkgsrc()->{$status->{package}};
851 $src = $status->{package} unless defined $src;
854 if (exists $_versionobj{$src}) {
855 $tree = $_versionobj{$src};
857 $tree = Debbugs::Versions->new(\&DpkgVer::vercmp);
858 if (open VERFILE, "< $gVersionPackagesDir/$src") {
859 $tree->load(\*VERFILE);
862 $_versionobj{$src} = $tree;
865 return $tree->buggy($ver, $status->{found_versions},
866 $status->{fixed_versions});
871 my ($pkg, $dist, $arch) = @_;
872 return undef unless defined $gVersionIndex;
873 $dist = 'unstable' unless defined $dist;
874 $arch = 'i386' unless defined $arch;
876 unless (tied %_versions) {
877 tie %_versions, 'MLDBM', $gVersionIndex, O_RDONLY
878 or die "can't open versions index: $!";
881 return $_versions{$pkg}{$dist}{$arch};