===================================================================
RCS file: /cvs/cvsweb/cvsweb.cgi,v
retrieving revision 1.1.1.32
retrieving revision 1.7
diff -u -p -r1.1.1.32 -r1.7
--- cvsweb/cvsweb.cgi	2002/07/07 04:31:41	1.1.1.32
+++ cvsweb/cvsweb.cgi	1997/04/30 18:25:05	1.7
@@ -1,3745 +1,627 @@
-#!/usr/bin/perl -wT
+#!/usr/bin/perl -s
 #
-# cvsweb - a CGI interface to CVS trees.
+# cvsweb - a CGI interface to the CVS tree.
 #
-# Written in their spare time by
-#             Bill Fenner      <fenner@FreeBSD.org>   (original work)
-# extended by Henner Zeller    <zeller@think.de>,
-#             Henrik Nordstrom <hno@hem.passagen.se>
-#             Ken Coar         <coar@Apache.Org>
-#             Dick Balaska     <dick@buckosoft.com>
-#             Akinori MUSHA    <knu@FreeBSD.org>
-#             Jens-Uwe Mager   <jum@helios.de>
-#             Ville Skyttä     <scop@FreeBSD.org>
+# Written by Bill Fenner <fenner@parc.xerox.com> on his own time.
+# Insert BSD copyright here.
 #
-# Based on:
-# * Bill Fenners cvsweb.cgi revision 1.28 available from:
-#   http://www.FreeBSD.org/cgi/cvsweb.cgi/www/en/cgi/cvsweb.cgi
+#HTTP_USER_AGENT: Mozilla/1.1N (X11; I; SunOS 4.1.3_U1 sun4m) via proxy gateway CERN-HTTPD/3.0 libwww/2.17
+#SERVER_NAME: www.freebsd.org
+#QUERY_STRING: baz
+#SCRIPT_FILENAME: /usr/local/www/cgi-bin/env.pl
+#SERVER_PORT: 80
+#HTTP_ACCEPT: */*, image/gif, image/x-xbitmap, image/jpeg
+#SERVER_PROTOCOL: HTTP/1.0
+#HTTP_COOKIE: s=beta26429821397802167
+#PATH_INFO: /foo/bar
+#REMOTE_ADDR: 13.1.64.94
+#DOCUMENT_ROOT: /usr/local/www/data/
+#PATH: /sbin:/bin:/usr/sbin:/usr/bin
+#PATH_TRANSLATED: /usr/local/www/data//foo/bar
+#GATEWAY_INTERFACE: CGI/1.1
+#REQUEST_METHOD: GET
+#SCRIPT_NAME: /cgi-bin/env.pl
+#SERVER_SOFTWARE: Apache/1.0.0
+#REMOTE_HOST: beta.xerox.com
+#SERVER_ADMIN: webmaster@freebsd.org
 #
-# Copyright (c) 1996-1998 Bill Fenner
-#           (c) 1998-1999 Henner Zeller
-#           (c) 1999      Henrik Nordstrom
-#           (c) 2000-2002 Akinori MUSHA
-#           (c) 2002      Ville Skyttä
-# All rights reserved.
-#
-# Redistribution and use in source and binary forms, with or without
-# modification, are permitted provided that the following conditions
-# are met:
-# 1. Redistributions of source code must retain the above copyright
-#    notice, this list of conditions and the following disclaimer.
-# 2. Redistributions in binary form must reproduce the above copyright
-#    notice, this list of conditions and the following disclaimer in the
-#    documentation and/or other materials provided with the distribution.
-#
-# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
-# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
-# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
-# ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
-# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
-# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
-# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
-# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
-# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
-# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
-# SUCH DAMAGE.
-#
-# $FreeBSD: projects/cvsweb/cvsweb.cgi,v 1.112 2002/07/06 18:15:19 scop Exp $
-# $zId: cvsweb.cgi,v 1.112 2001/07/24 13:03:16 hzeller Exp $
-# $Idaemons: /home/cvs/cvsweb/cvsweb.cgi,v 1.84 2001/10/07 20:50:10 knu Exp $
-#
-###
+require 'timelocal.pl';
+require 'ctime.pl';
 
-require 5.000;
+$hsty_base = "";
+require 'cgi-style.pl';
 
-use strict;
+$cvsroot = '/home/ncvs';
+$intro = "
+This is a WWW interface to the FreeBSD CVS tree.
+You can browse the file hierarchy by picking directories
+(which have slashes after them, e.g. <b>src/</b>).
+If you pick a file, you will see the revision history
+for that file.
+Selecting a revision number will download that revision of
+the file.  There is a link at each revision to display
+diffs between that revision and the previous one, and
+a form at the bottom of the page that allows you to
+display diffs between arbitrary revisions.
+<p>
+If you would like to use this CGI script on your own web server and
+CVS tree, see <A HREF=\"http://www.freebsd.org/~fenner/cvsweb/\">
+the CVSWeb distribution site</A>.
+<p>
+Please send any suggestions, comments, etc. to
+<A HREF=\"mailto:fenner@freebsd.org\">Bill Fenner &lt;fenner@freebsd.org&gt;</A>
+";
+$shortinstr = "
+Click on a directory to enter that directory. Click on a file to display
+its revision history and to get a
+chance to display diffs between revisions. 
+";
 
-use vars qw (
-    $cvsweb_revision
-    $mydir $uname $config $allow_version_select $verbose
-    @CVSrepositories @CVSROOT %CVSROOT %CVSROOTdescr
-    %MIRRORS %DEFAULTVALUE %ICONS %MTYPES
-    @DIFFTYPES %DIFFTYPES @LOGSORTKEYS %LOGSORTKEYS
-    %alltags @tabcolors %fileinfo %tags @branchnames %nameprinted
-    %symrev %revsym @allrevisions %date %author @revdisplayorder
-    @revisions %state %difflines %log %branchpoint @revorder
-    $prcgi @prcategories $re_prcategories $prkeyword $re_prkeyword $mancgi
-    $checkoutMagic $doCheckout $scriptname $scriptwhere
-    $where $pathinfo $Browser $nofilelinks $maycompress
-    @stickyvars @unsafevars
-    %funcline_regexp $is_mod_perl
-    $is_links $is_lynx $is_w3m $is_msie $is_mozilla3 $is_textbased
-    %input $query $barequery $sortby $bydate $byrev $byauthor
-    $bylog $byfile $defaultDiffType $logsort $cvstree $cvsroot
-    $mimetype $charset $output_filter $defaultTextPlain $defaultViewable
-    $command_path %CMD $allow_compress
-    $backicon $diricon $fileicon
-    $fullname $newname $cvstreedefault
-    $body_tag $body_tag_for_src $logo $defaulttitle $address
-    $long_intro $short_instruction $shortLogLen
-    $show_author $dirtable $tablepadding $columnHeaderColorDefault
-    $columnHeaderColorSorted $hr_breakable $showfunc $hr_ignwhite
-    $hr_ignkeysubst $diffcolorHeading $diffcolorEmpty $diffcolorRemove
-    $diffcolorChange $diffcolorAdd $diffcolorDarkChange $difffontface
-    $difffontsize $inputTextSize $mime_types
-    $allow_annotate $allow_markup
-    $allow_log_extra $allow_dir_extra $allow_source_extra
-    $use_java_script $open_extern_window
-    $extern_window_width $extern_window_height $edit_option_form
-    $show_subdir_lastmod $show_log_in_markup $preformat_in_markup $v
-    $navigationHeaderColor $tableBorderColor $markupLogColor
-    $tabstop $state $annTable $sel $curbranch @HideModules @ForbiddenFiles
-    $module $use_descriptions %descriptions @mytz $dwhere $moddate
-    $use_moddate $has_zlib $gzip_open
-    $allow_tar @tar_options @gzip_options @zip_options @cvs_options
-    $LOG_FILESEPARATOR $LOG_REVSEPARATOR
-    $tmpdir $HTML_DOCTYPE $HTML_META
-);
+$verbose = $v;
+($where = $ENV{'PATH_INFO'}) =~ s|^/||;
+$where =~ s|/$||;
+$fullname = $cvsroot . '/' . $where;
+($scriptname = $ENV{'SCRIPT_NAME'}) =~ s|^/?|/|;
+$scriptname =~ s|/$||;
+$scriptwhere = $scriptname . '/' . $where;
+$scriptwhere =~ s|/$||;
 
-sub printDiffSelect($);
-sub printDiffLinks($$);
-sub printLogSortSelect($);
-sub findLastModifiedSubdirs(@);
-sub htmlify_sub(&$);
-sub htmlify($;$);
-sub spacedHtmlText($;$);
-sub link($$);
-sub revcmp($$);
-sub fatal($$@);
-sub redirect($);
-sub safeglob($);
-sub search_path($);
-sub getMimeTypeFromSuffix($);
-sub head($;$);
-sub scan_directives(@);
-sub openOutputFilter();
-sub doAnnotate($$);
-sub doCheckout($$);
-sub cvswebMarkup($$$);
-sub viewable($);
-sub doDiff($$$$$$);
-sub getDirLogs($$@);
-sub readLog($;$);
-sub printLog($;$);
-sub doLog($);
-sub flush_diff_rows($$$$);
-sub human_readable_diff($);
-sub navigateHeader($$$$$);
-sub plural_write($$);
-sub readableTime($$);
-sub clickablePath($$);
-sub chooseCVSRoot();
-sub chooseMirror();
-sub fileSortCmp();
-sub download_url($$;$);
-sub download_link($$$;$);
-sub toggleQuery($$);
-sub urlencode($);
-sub htmlquote($);
-sub htmlunquote($);
-sub hrefquote($);
-sub http_header(;$);
-sub html_header($);
-sub html_footer();
-sub link_tags($);
-sub forbidden_file($);
-sub forbidden_module($);
-
-##### Start of Configuration Area ########
-delete $ENV{PATH};
-
-$cvsweb_revision = '2.0.4';
-
-use File::Basename ();
-
-($mydir) = (File::Basename::dirname($0) =~ /(.*)/);    # untaint
-
-# == EDIT this ==
-# Locations to search for user configuration, in order:
-for ("$mydir/cvsweb.conf", '/usr/local/etc/cvsweb/cvsweb.conf') {
-	if (defined($_) && -r $_) {
-		$config = $_;
-		last;
-	}
-}
-
-# == Configuration defaults ==
-# Defaults for configuration variables that shouldn't need
-# to be configured..
-$allow_version_select = 1;
-$allow_log_extra = 1;
-
-##### End of Configuration Area   ########
-
-######## Configuration variables #########
-# These are defined to allow checking with perl -cw
-@CVSrepositories = @CVSROOT = %CVSROOT = %MIRRORS = %DEFAULTVALUE = %ICONS =
-    %MTYPES = %tags = %alltags = @tabcolors = %fileinfo = ();
-$cvstreedefault = $body_tag = $body_tag_for_src = $logo = $defaulttitle =
-    $address = $long_intro = $short_instruction = $shortLogLen = $show_author =
-    $dirtable = $tablepadding = $columnHeaderColorDefault =
-    $columnHeaderColorSorted = $hr_breakable = $showfunc = $hr_ignwhite =
-    $hr_ignkeysubst = $diffcolorHeading = $diffcolorEmpty = $diffcolorRemove =
-    $diffcolorChange = $diffcolorAdd  = $diffcolorDarkChange = $difffontface   =
-    $difffontsize    = $inputTextSize = $mime_types          = $allow_annotate =
-    $allow_markup        = $use_java_script      = $open_extern_window =
-    $extern_window_width = $extern_window_height = $edit_option_form   =
-    $show_subdir_lastmod = $show_log_in_markup = $v = $navigationHeaderColor =
-    $tableBorderColor = $markupLogColor = $tabstop = $use_moddate = $moddate =
-    $gzip_open = $HTML_DOCTYPE = $HTML_META = undef;
-$tmpdir = defined($ENV{TMPDIR}) ? $ENV{TMPDIR} : "/var/tmp";
-
-$LOG_FILESEPARATOR = q/^={77}$/;
-$LOG_REVSEPARATOR  = q/^-{28}$/;
-
-@DIFFTYPES = qw(h H u c s);
-@DIFFTYPES{@DIFFTYPES} = (
-	{
-		'descr'   => 'colored',
-		'opts'    => ['-u'],
-		'colored' => 1,
-	},
-	{
-		'descr'   => 'long colored',
-		'opts'    => ['--unified=15'],
-		'colored' => 1,
-	},
-	{
-		'descr'   => 'unified',
-		'opts'    => ['-u'],
-		'colored' => 0,
-	},
-	{
-		'descr'   => 'context',
-		'opts'    => ['-c'],
-		'colored' => 0,
-	},
-	{
-		'descr'   => 'side by side',
-		'opts'    => ['--side-by-side', '--width=164'],
-		'colored' => 0,
-	},
-);
-
-@LOGSORTKEYS = qw(cvs date rev);
-@LOGSORTKEYS{@LOGSORTKEYS} = (
-	{
-		'descr' => 'Not sorted',
-	},
-	{
-		'descr' => 'Commit date',
-	},
-	{
-		'descr' => 'Revision',
-	},
-);
-
-$HTML_DOCTYPE =
-  '<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">';
-
-$HTML_META = <<EOM;
-<meta name="robots" content="nofollow">
-<meta name="generator" content="FreeBSD-CVSweb $cvsweb_revision">
-<meta http-equiv="Content-Script-Type" content="text/javascript">
-<meta http-equiv="Content-Style-Type" content="text/css">
-EOM
-
-##### End of configuration variables #####
-
-use Time::Local ();
-use IPC::Open2 qw(open2);
-
-# Check if the zlib C library interface is installed, and if yes
-# we can avoid using the extra gzip process.
-eval { require Compress::Zlib; };
-$has_zlib = !$@;
-
-$verbose       = $v;
-$checkoutMagic = "~checkout~";
-$pathinfo      = defined($ENV{PATH_INFO}) ? $ENV{PATH_INFO} : '';
-$where         = $pathinfo;
-$doCheckout = ($where =~ m|^/$checkoutMagic/|);
-$where =~ s|^/$checkoutMagic/|/|;
-$where =~ s|^/||;
-$scriptname = defined($ENV{SCRIPT_NAME}) ? $ENV{SCRIPT_NAME} : '';
-$scriptname =~ s|^/*|/|;
-
-# Let's workaround thttpd's stupidity..
-if ($scriptname =~ m|/$|) {
-	$pathinfo .= '/';
-	my $re = quotemeta $pathinfo;
-	$scriptname =~ s/$re$//;
-}
-
-$scriptwhere = $scriptname;
-$scriptwhere .= '/' . urlencode($where);
-$where = '/' if ($where eq '');
-
-$is_mod_perl = defined($ENV{MOD_PERL});
-
-# in lynx, it it very annoying to have two links
-# per file, so disable the link at the icon
-# in this case:
-$Browser = $ENV{HTTP_USER_AGENT} || '';
-$is_links    = ($Browser =~ m`^Links `);
-$is_lynx     = ($Browser =~ m`^Lynx/`i);
-$is_w3m      = ($Browser =~ m`^w3m/`i);
-$is_msie     = ($Browser =~ m`MSIE`);
-$is_mozilla3 = ($Browser =~ m`^Mozilla/[3-9]`);
-
-$is_textbased = ($is_links || $is_lynx || $is_w3m);
-
-$nofilelinks = $is_textbased;
-
-# newer browsers accept gzip content encoding
-# and state this in a header
-# (netscape did always but didn't state it)
-# It has been reported that these
-#  braindamaged MS-Internet Exploders claim that they
-# accept gzip .. but don't in fact and
-# display garbage then :-/
-# Turn off gzip if running under mod_perl and no zlib is available,
-# piping does not work as expected inside the server.
-$maycompress =
-    (((defined($ENV{HTTP_ACCEPT_ENCODING})
-    && $ENV{HTTP_ACCEPT_ENCODING} =~ m`gzip`) || $is_mozilla3) && !$is_msie
-    && !($is_mod_perl && !$has_zlib));
-
-# put here the variables we need in order
-# to hold our state - they will be added (with
-# their current value) to any link/query string
-# you construct
-@stickyvars = qw(cvsroot hideattic sortby logsort f only_with_tag);
-@unsafevars = qw(logsort only_with_tag r1 r2 rev sortby tr1 tr2);
-
-if (-f $config) {
-	do "$config" or fatal("500 Internal Error",
-			      'Error in loading configuration file: %s<br><br>%s<br>',
-			      $config, $@);
-} else {
-	fatal("500 Internal Error",
-	      'Configuration not found.  Set the variable <code>$config</code> in cvsweb.cgi to your <b>cvsweb.conf</b> configuration file first.'
-	     );
-}
-
-undef %input;
-$query = $ENV{QUERY_STRING};
-
-if (defined($query) && $query ne '') {
-	foreach (split (/&/, $query)) {
-		y/+/ /;
-		s/%(..)/sprintf("%c", hex($1))/ge;    # unquote %-quoted
-		if (/(\S+)=(.*)/) {
-			$input{$1} = $2 if ($2 ne "");
-		} else {
-			$input{$_}++;
-		}
-	}
-}
-
-# For backwards compability, set only_with_tag to only_on_branch if set.
-$input{only_with_tag} = $input{only_on_branch}
-    if (defined($input{only_on_branch}));
-
-# Prevent cross-site scripting
-foreach (@unsafevars) {
-	if (defined($input{$_}) && $input{$_} =~ /[^\w\-.]/) {
-		fatal("500 Internal Error",
-		      'Malformed query (%s=%s)',
-		      $_, $input{$_});
-	}
-}
-
-if (defined($input{"content-type"})) {
-	fatal("500 Internal Error", "Unsupported content-type")
-	    if ($input{"content-type"} !~ /^[-0-9A-Za-z]+\/[-0-9A-Za-z]+$/);
-}
-
-$DEFAULTVALUE{'cvsroot'} = $cvstreedefault;
-
-foreach (keys %DEFAULTVALUE) {
-
-	# replace not given parameters with the default parameters
-	if (!defined($input{$_}) || $input{$_} eq "") {
-
-		# Empty Checkboxes in forms return -- nothing. So we define a helper
-		# variable in these forms (copt) which indicates that we just set
-		# parameters with a checkbox
-		if (!defined($input{"copt"})) {
-
-			# 'copt' isn't defined --> empty input is not the result
-			# of empty input checkbox --> set default
-			$input{$_} = $DEFAULTVALUE{$_}
-			    if (defined($DEFAULTVALUE{$_}));
-		} else {
-
-			# 'copt' is defined -> the result of empty input checkbox
-			# -> set to zero (disable) if default is a boolean (0|1).
-			$input{$_} = 0
-			    if (defined($DEFAULTVALUE{$_})
-			    && ($DEFAULTVALUE{$_} eq "0"
-			    || $DEFAULTVALUE{$_} eq "1"));
-		}
-	}
-}
-
-$barequery = "";
-my @barequery;
-foreach (@stickyvars) {
-
-	# construct a query string with the sticky non default parameters set
-	if (defined($input{$_}) && $input{$_} ne ''
-	    && !(defined($DEFAULTVALUE{$_}) && $input{$_} eq $DEFAULTVALUE{$_}))
-	{
-		push @barequery,
-		    join ('=', urlencode($_), urlencode($input{$_}));
-	}
-}
-
-# is there any query ?
-if (@barequery) {
-	$barequery = join ('&', @barequery);
-	$query     = "?$barequery";
-	$barequery = "&$barequery";
-} else {
-	$query = "";
-}
-undef @barequery;
-
-if (defined($input{path})) {
-	redirect("$scriptname/$input{path}$query");
-}
-
-# get actual parameters
-$sortby   = $input{"sortby"};
-$bydate   = 0;
-$byrev    = 0;
-$byauthor = 0;
-$bylog    = 0;
-$byfile   = 0;
-if ($sortby eq "date") {
-	$bydate = 1;
-} elsif ($sortby eq "rev") {
-	$byrev = 1;
-} elsif ($sortby eq "author") {
-	$byauthor = 1;
-} elsif ($sortby eq "log") {
-	$bylog = 1;
-} else {
-	$byfile = 1;
-}
-
-$defaultDiffType = $input{'f'};
-
-$logsort = $input{'logsort'};
-
-{
-	my @tmp = @CVSrepositories;
-	my @pair;
-
-	while (@pair = splice(@tmp, 0, 2)) {
-		my ($key,   $val)     = @pair;
-		my ($descr, $cvsroot) = @$val;
-
-		next if !-d $cvsroot;
-
-		$CVSROOTdescr{$key} = $descr;
-		$CVSROOT{$key}      = $cvsroot;
-		push @CVSROOT, $key;
-	}
-}
-
-## Default CVS-Tree
-if (!defined($CVSROOT{$cvstreedefault})) {
-	fatal("500 Internal Error",
-	      '<code>$cvstreedefault</code> points to a repository (%s) not defined in <code>%%CVSROOT</code> (edit your configuration file %s)',
-	      $cvstreedefault, $config);
-}
-
-# alternate CVS-Tree, configured in cvsweb.conf
-if ($input{'cvsroot'} && $CVSROOT{$input{'cvsroot'}}) {
-	$cvstree = $input{'cvsroot'};
-} else {
-	$cvstree = $cvstreedefault;
-}
-
-$cvsroot = $CVSROOT{$cvstree};
-
-# create icons out of description
-my $k;
-foreach $k (keys %ICONS) {
-	no strict 'refs';
-	my ($itxt, $ipath, $iwidth, $iheight) = @{$ICONS{$k}};
-	if ($ipath) {
-		${"${k}icon"} =
-		    sprintf(
-			'<img src="%s" alt="%s" border="0" width="%d" height="%d">',
-			hrefquote($ipath), htmlquote($itxt), $iwidth, $iheight)
-	} else {
-		${"${k}icon"} = $itxt;
-	}
-}
-undef $k;
-
-my $config_cvstree = "$config-$cvstree";
-
-# Do some special configuration for cvstrees
-if (-f $config_cvstree) {
-	do "$config_cvstree" or
-	    fatal("500 Internal Error",
-		  'Error in loading configuration file: %s<br><br>%s<br>',
-		  $config_cvstree, $@);
-}
-undef $config_cvstree;
-
-$re_prcategories = '(?:' . join ('|', @prcategories) . ')' if @prcategories;
-$re_prkeyword = quotemeta($prkeyword) if defined($prkeyword);
-$prcgi .= '%s' if defined($prcgi) && $prcgi !~ /%s/;
-
-$fullname         = "$cvsroot/$where";
-$mimetype         = &getMimeTypeFromSuffix($fullname);
-$defaultTextPlain = ($mimetype eq "text/plain");
-$defaultViewable  = $allow_markup && viewable($mimetype);
-
-my $rewrite = 0;
-
-if ($pathinfo =~ m|//|) {
-	$pathinfo =~ y|/|/|s;
-	$rewrite = 1;
-}
-
-if (-d $fullname && $pathinfo !~ m|/$|) {
-	$pathinfo .= '/';
-	$rewrite = 1;
-}
-
-if (!-d $fullname && $pathinfo =~ m|/$|) {
-	chop $pathinfo;
-	$rewrite = 1;
-}
-
-if ($rewrite) {
-	redirect($scriptname . urlencode($pathinfo) . $query);
-}
-
-undef $rewrite;
-
 if (!-d $cvsroot) {
-	fatal("500 Internal Error",
-	      '$CVSROOT not found!<p>The server on which the CVS tree lives is probably down.  Please try again in a few minutes.');
+	&fatal("500 Internal Error",'$CVSROOT not found!');
 }
 
-#
-# See if the module is in our forbidden list.
-#
-$where =~ m:([^/]*):;
-$module = $1;
-if ($module && &forbidden_module($module)) {
-	fatal("403 Forbidden",
-	      'Access to %s forbidden.',
-	      $where);
-}
-
-#
-# Handle tarball downloads before any headers are output.
-#
-if ($input{tarball}) {
-	fatal("403 Forbidden",
-	      'Downloading tarballs is prohibited.')
-	    unless $allow_tar;
-	my ($module) = ($where =~ m,^/?(.*),);    # untaint
-	$module =~ s,/([^/]*)$,,;
-	my ($ext)     = ($1      =~ /(\.tar\.gz|\.zip)$/);
-	my ($basedir) = ($module =~ m,([^/]+)$,);
-
-	if ($basedir eq '' || $module eq '') {
-		fatal("500 Internal Error",
-		      'You cannot download the top level directory.');
-	}
-
-	my $tmpexportdir = "$tmpdir/.cvsweb.$$." . int(time);
-
-	mkdir($tmpexportdir, 0700)
-	    or fatal("500 Internal Error",
-		     'Unable to make temporary directory: %s',
-		     $!);
-
-	my @fatal;
-
-	my $tag =
-	    (exists $input{only_with_tag} && length $input{only_with_tag}) ?
-	    $input{only_with_tag} : "HEAD";
-
-	if ($tag eq 'MAIN') {
-	    $tag = 'HEAD';
-	}
-
-	if (system $CMD{cvs}, @cvs_options, '-Qd', $cvsroot, 'export', '-r',
-	    $tag, '-d', "$tmpexportdir/$basedir", $module)
-	{
-		@fatal = ("500 Internal Error",
-			  'cvs co failure: %s: %s',
-			  $!, $module);
+if ($q = $ENV{'QUERY_STRING'}) {
+    foreach (split(/&/, $q)) {
+	s/%(..)/sprintf("%c", hex($1))/ge;	# unquote %-quoted
+	if (/(\S+)=(.*)/) {
+	    $input{$1} = $2;
 	} else {
-		$| = 1;    # Essential to get the buffering right.
-
-		if ($ext eq '.tar.gz') {
-			print "Content-Type: application/x-gzip\r\n\r\n";
-
-			system
-			    "$CMD{tar} @tar_options -cf - -C $tmpexportdir $basedir | $CMD{gzip} @gzip_options -c"
-			    and @fatal =
-				("500 Internal Error",
-				 'tar zc failure: %s: %s',
-			     $!, $basedir);
-		} elsif ($ext eq '.zip' && $CMD{zip}) {
-			print "Content-Type: application/zip\r\n\r\n";
-
-			system
-			    "cd $tmpexportdir && $CMD{zip} @zip_options -r - $basedir"
-			    and @fatal =
-				("500 Internal Error",
-				 'zip failure: %s: %s',
-				 $!, $basedir);
-		} else {
-			@fatal =
-			    ("500 Internal Error",
-			     'unsupported file type');
-		}
+	    $input{$_}++;
 	}
-
-	system $CMD{rm}, '-rf', $tmpexportdir if -d $tmpexportdir;
-
-	&fatal(@fatal) if @fatal;
-
-	exit;
+    }
 }
-
-##############################
-# View a directory
-###############################
 if (-d $fullname) {
-	my $dh = do { local (*DH); };
-	opendir($dh, $fullname) or fatal("404 Not Found",
-					 '%s: %s',
-					 $where, $!);
-	my @dir = readdir($dh);
-	closedir($dh);
-	my @subLevelFiles = findLastModifiedSubdirs(@dir)
-	    if ($show_subdir_lastmod);
-	getDirLogs($cvsroot, $where, @subLevelFiles);
-
-	if ($where eq '/') {
-		html_header($defaulttitle);
-		$long_intro =~ s/!!CVSROOTdescr!!/$CVSROOTdescr{$cvstree}/g;
-		print $long_intro;
+	opendir(DIR, $fullname) || &fatal("404 Not Found","$where: $!");
+	@dir = readdir(DIR);
+	closedir(DIR);
+	if ($where eq '') {
+	    print &html_header("FreeBSD CVS Repository");
+	    print $intro;
 	} else {
-		html_header($where);
-		print $short_instruction;
+	    print &html_header("/$where");
+	    print $shortinstr;
 	}
-
-	if ($use_descriptions && open(DESC, "<$cvsroot/CVSROOT/descriptions"))
-	{
-		while (<DESC>) {
-			chomp;
-			my ($dir, $description) = /(\S+)\s+(.*)/;
-			$descriptions{$dir} = $description;
-		}
-		close(DESC);
-	}
-
-	print "<p><a name=\"dirlist\"></a></p>\n";
-
-	# give direct access to dirs
-	if ($where eq '/') {
-		chooseMirror ();
-		chooseCVSRoot ();
-	} else {
-		print "<p>Current directory: <b>", &clickablePath($where, 0),
-		    "</b></p>\n";
-
-		print "<p>Current tag: <b>", $input{only_with_tag},"</b></p>\n"
-		    if $input{only_with_tag};
-
-	}
-
-	print "<hr noshade>\n";
-
-	# Using <menu> in this manner violates the HTML2.0 spec but
+	print "<p>Current directory: <b>/$where</b>\n";
+	print "<P><HR NOSHADE>\n";
+	# Using <MENU> in this manner violates the HTML2.0 spec but
 	# provides the results that I want in most browsers.  Another
 	# case of layout spooging up HTML.
-
-	my $infocols = 0;
-	if ($dirtable) {
-		print "<table style=\"border-width: 0";
-		print "; background-color: $tableBorderColor"
-		    if (defined $tableBorderColor);
-		print "\" width=\"100%\" cellspacing=\"1\" cellpadding=\"$tablepadding\">\n";
-		$infocols++;
-		printf "<tr>\n<th style=\"text-align: left; background-color: %s\">",
-		    $byfile ? $columnHeaderColorSorted :
-		    $columnHeaderColorDefault;
-
-		if ($byfile) {
-			print 'File';
-		} else {
-			print &link(
-				'File',
-				sprintf(
-					'./%s#dirlist',
-					&toggleQuery("sortby", "file")
-				)
-			);
-		}
-		print "</th>\n";
-
-		# do not display the other column-headers, if we do not have any files
-		# with revision information:
-		if (scalar(%fileinfo)) {
-			$infocols++;
-			printf '<th style="text-align: left; background-color: %s">',
-			    $byrev ? $columnHeaderColorSorted :
-			    $columnHeaderColorDefault;
-
-			if ($byrev) {
-				print 'Rev.';
-			} else {
-				print &link(
-					'Rev.',
-					sprintf(
-						'./%s#dirlist',
-						&toggleQuery("sortby", "rev")
-					)
-				);
-			}
-			print "</th>\n";
-			$infocols++;
-			printf '<th style="text-align: left; background-color: %s">',
-			    $bydate ? $columnHeaderColorSorted :
-			    $columnHeaderColorDefault;
-
-			if ($bydate) {
-				print 'Age';
-			} else {
-				print &link(
-					'Age',
-					sprintf(
-						'./%s#dirlist',
-						&toggleQuery("sortby", "date")
-					)
-				);
-			}
-			print "</th>\n";
-
-			if ($show_author) {
-				$infocols++;
-				printf '<th style="text-align: left; background-color: %s">',
-				    $byauthor ? $columnHeaderColorSorted :
-				    $columnHeaderColorDefault;
-
-				if ($byauthor) {
-					print 'Author';
-				} else {
-					print &link(
-						'Author',
-						sprintf(
-							'./%s#dirlist',
-							&toggleQuery(
-								"sortby",
-								"author"
-							)
-						)
-					);
-				}
-				print "</th>\n";
-			}
-			$infocols++;
-			printf '<th style="text-align: left; background-color: %s">',
-			    $bylog ? $columnHeaderColorSorted :
-			    $columnHeaderColorDefault;
-
-			if ($bylog) {
-				print 'Last log entry';
-			} else {
-				print &link(
-					'Last log entry',
-					sprintf(
-						'./%s#dirlist',
-						&toggleQuery("sortby", "log")
-					)
-				);
-			}
-			print "</th>\n";
-		} elsif ($use_descriptions) {
-			printf '<th style="text-align: left; background-color: s">',
-			    $columnHeaderColorDefault;
-			print "Description</th>\n";
-			$infocols++;
-		}
-		print "</tr>\n";
-	} else {
-		print "<menu>\n";
+	print "<MENU>\n";
+	foreach (sort @dir) {
+	    if ($_ eq '.') {
+		next;
+	    }
+	    if ($_ eq '..') {
+		next if ($where eq '');
+		($updir = $scriptwhere) =~ s|[^/]+$||;
+		print "<IMG SRC=\"/icons/back.gif\"> ",
+		    &link("Previous Directory",$updir), "<BR>";
+#		print "<IMG SRC=???> ",
+#		    &link("Directory-wide diffs", $scriptwhere . '/*'), "<BR>";
+	    } elsif (-d $fullname . "/" . $_) {
+		print "<IMG SRC=\"/icons/dir.gif\"> ",
+		    &link($_ . "/", $scriptwhere . '/' . $_ . '/'), "<BR>";
+	    } elsif (s/,v$//) {
+# TODO: add date/time?  How about sorting?
+		print "<IMG SRC=\"/icons/text.gif\"> ",
+		    &link($_, $scriptwhere . '/' . $_), "<BR>";
+	    }
 	}
-	my $dirrow = 0;
-
-	my $i;
-	lookingforattic:
-	for ($i = 0 ; $i <= $#dir ; $i++) {
-		if ($dir[$i] eq "Attic") {
-			last lookingforattic;
-		}
+	print "</MENU>\n";
+	print &html_footer;
+	print "</BODY></HTML>\n";
+} elsif (-f $fullname . ',v') {
+	if ($input{'rev'} =~ /^[\d\.]+$/) {
+		&checkout($fullname, $input{'rev'});
+		exit;
 	}
-
-	if (!$input{'hideattic'} && ($i <= $#dir)
-	    && opendir($dh, $fullname . "/Attic"))
-	{
-		splice(@dir, $i, 1, grep((s|^|Attic/|, !m|/\.|), readdir($dh)));
-		closedir($dh);
+	if ($input{'r1'} && $input{'r2'}) {
+		&dodiff($fullname, $input{'r1'}, $input{'tr1'},
+			$input{'r2'}, $input{'tr2'}, $input{'f'});
+		exit;
 	}
-
-	my $hideAtticToggleLink =
-	    $input{'hideattic'} ? '' :
-	    &link('[Hide]', sprintf('./%s#dirlist', &toggleQuery("hideattic")));
-
-	# Sort without the Attic/ pathname.
-	# place directories first
-
-	my $attic;
-	my $url;
-	my $fileurl;
-	my $filesexists;
-	my $filesfound;
-
-	foreach (sort { &fileSortCmp } @dir) {
-		if ($_ eq '.') {
-			next;
-		}
-
-		# ignore CVS lock and stale NFS files
-		next if (/^#cvs\.|^,|^\.nfs/);
-
-		# Check whether to show the CVSROOT path
-		next if ($input{'hidecvsroot'} && ($_ eq 'CVSROOT'));
-
-		# Check whether the module is in the restricted list
-		next if ($_ && &forbidden_module($_));
-
-		# Ignore non-readable files
-		next if ($input{'hidenonreadable'} && !(-r "$fullname/$_"));
-
-		if (s|^Attic/||) {
-			$attic = " (in the Attic)&nbsp;" . $hideAtticToggleLink;
+	open(RCS, "rlog '$fullname'|") || &fatal("500 Internal Error",
+						"Failed to spawn rlog");
+	while (<RCS>) {
+	    print if ($verbose);
+	    if ($symnames) {
+		if (/^\s+([^:]+):\s+([\d\.]+)/) {
+		    $symrev{$1} = $2;
+		    if ($revsym{$2}) {
+			$revsym{$2} .= ", ";
+		    }
+		    $revsym{$2} .= $1;
 		} else {
-			$attic = "";
+		    $symnames = 0;
 		}
-
-		if ($_ eq '..' || -d "$fullname/$_") {
-			next if ($_ eq '..' && $where eq '/');
-			my ($rev, $date, $log, $author, $filename);
-			($rev, $date, $log, $author, $filename) =
-			    @{$fileinfo{$_}}
-			    if (defined($fileinfo{$_}));
-			printf "<tr style=\"background-color: %s\">\n<td>",
-			     $tabcolors[$dirrow % 2] if $dirtable;
-
-			if ($_ eq '..') {
-				$url = "../$query";
-				if ($nofilelinks) {
-					print $backicon;
-				} else {
-					print &link($backicon, $url);
-				}
-				print '&nbsp;', &link("Parent Directory", $url);
-			} else {
-				$url = './' . urlencode($_) . "/$query";
-				print "<a name=\"$_\"></a>";
-
-				if ($nofilelinks) {
-					print $diricon;
-				} else {
-					print &link($diricon, $url);
-				}
-				print '&nbsp;', &link("$_/", $url), $attic;
-
-				if ($_ eq "Attic") {
-					print "&nbsp; ";
-					print &link(
-						"[Don't hide]",
-						sprintf(
-							'./%s#dirlist',
-							&toggleQuery(
-								"hideattic")
-						)
-					);
-				}
-			}
-
-			# Show last change in dir
-			if ($filename) {
-				print "</td>\n<td>&nbsp;</td>\n<td>&nbsp;"
-				    if ($dirtable);
-				if ($date) {
-					print " <i>",
-					    readableTime(time() - $date, 0),
-					    "</i>";
-				}
-
-				if ($show_author) {
-					print "</td>\n<td>&nbsp;" if ($dirtable);
-					print $author;
-				}
-				print "</td>\n<td>&nbsp;" if ($dirtable);
-				$filename =~ s%^[^/]+/%%;
-				print "$filename/$rev";
-				print "<br>" if ($dirtable);
-
-				if ($log) {
-					print "&nbsp;<span style=\"font-size: smaller\">",
-					  &htmlify(
-						substr($log, 0, $shortLogLen), $allow_dir_extra);
-					if (length $log > 80) {
-						print "...";
-					}
-					print "</span>";
-				}
-			} else {
-				my ($dwhere) =
-				    ($where ne "/" ? $where : "") . $_;
-
-				if ($use_descriptions
-				    && defined $descriptions{$dwhere})
-				{
-					print "<td colspan=\"",($infocols - 1),
-					    "\">&nbsp;"
-					    if $dirtable;
-					print $descriptions{$dwhere};
-				} elsif ($dirtable && $infocols > 1) {
-
-					# close the row with the appropriate number of
-					# columns, so that the vertical seperators are visible
-					my ($cols) = $infocols;
-					while ($cols > 1) {
-						print "</td>\n<td>&nbsp;";
-						$cols--;
-					}
-				}
-			}
-
-			if ($dirtable) {
-				print "</td>\n</tr>\n";
-			} else {
-				print "<br>\n";
-			}
-			$dirrow++;
-		} elsif (s/,v$//) {
-			$fileurl = ($attic ? "Attic/" : "") . urlencode($_);
-			$url = './' . $fileurl . $query;
-			my $rev    = '';
-			my $date   = '';
-			my $log    = '';
-			my $author = '';
-			$filesexists++;
-			next if (!defined($fileinfo{$_}));
-			($rev, $date, $log, $author) = @{$fileinfo{$_}};
-			$filesfound++;
-			printf "<tr style=\"background-color: %s\">\n<td>",
-			    $tabcolors[$dirrow % 2] if $dirtable;
-			print "<a name=\"$_\"></a>";
-
-			if ($nofilelinks) {
-				print $fileicon;
-			} else {
-				print &link($fileicon, $url);
-			}
-			print '&nbsp;', &link($_, $url), $attic;
-			print "</td>\n<td>&nbsp;" if ($dirtable);
-			download_link($fileurl, $rev, $rev,
-				$defaultViewable ? "text/x-cvsweb-markup" :
-				undef);
-			print "</td>\n<td>&nbsp;" if ($dirtable);
-
-			if ($date) {
-				print " <i>", readableTime(time() - $date, 0),
-				    "</i>";
-			}
-			if ($show_author) {
-				print "</td>\n<td>&nbsp;" if ($dirtable);
-				print $author;
-			}
-			print "</td>\n<td>&nbsp;" if ($dirtable);
-
-			if ($log) {
-				print " <span style=\"font-size: smaller\">",
-				    &htmlify(substr($log, 0, $shortLogLen), $allow_dir_extra);
-				if (length $log > 80) {
-					print "...";
-				}
-				print "</span>";
-			}
-			print "</td>\n" if ($dirtable);
-			print(($dirtable) ? "</tr>" : "<br>");
-			$dirrow++;
-		}
-		print "\n";
+	    } elsif (/^symbolic names/) {
+		$symnames = 1;
+	    } elsif (/^-----/) {
+		last;
+	    }
 	}
 
-	print($dirtable ? "</table>\n" : "</menu>\n");
-
-	if ($filesexists && !$filesfound) {
-		print
-		    "<p><b>NOTE:</b> There are $filesexists files, but none matches the current tag ($input{only_with_tag}).</p>\n";
+	if ($onlyonbranch = $input{'only_on_branch'}) {
+	    ($onlyonbranch = $symrev{$onlyonbranch}) =~ s/\.0\././;
+	    ($onlybranchpoint = $onlyonbranch) =~ s/\.\d+$//;
 	}
-	if ($input{only_with_tag} && (!%tags || !$tags{$input{only_with_tag}}))
-	{
-		%tags = %alltags
-	}
 
-	if (scalar %tags || $input{only_with_tag} || $edit_option_form
-	    || defined($input{"options"}))
-	{
-		print "<hr size=\"1\" noshade>\n";
+# each log entry is of the form:
+# ----------------------------
+# revision 3.7.1.1
+# date: 1995/11/29 22:15:52;  author: fenner;  state: Exp;  lines: +5 -3
+# log info
+# ----------------------------
+	logentry:
+	while (!/^=========/) {
+	    $_ = <RCS>;
+	    print "R:", $_ if ($verbose);
+	    if (/^revision ([\d\.]+)/) {
+		$rev = $1;
+	    } elsif (/^========/ || /^----------------------------$/) {
+		next logentry;
+	    } else {
+		&fatal("500 Internal Error","Error parsing RCS output: $_");
+	    }
+	    $_ = <RCS>;
+	    print "D:", $_ if ($verbose);
+	    if (m|^date:\s+(\d+)/(\d+)/(\d+)\s+(\d+):(\d+):(\d+);\s+author:\s+(\S+);|) {
+		$yr = $1;
+		# damn 2-digit year routines
+		if ($yr > 100) {
+		    $yr -= 1900;
+		}
+		$date{$rev} = &timelocal($6,$5,$4,$3,$2 - 1,$yr);
+		$author{$rev} = $7;
+	    } else {
+		&fatal("500 Internal Error", "Error parsing RCS output: $_");
+	    }
+	    line:
+	    while (<RCS>) {
+		print "L:", $_ if ($verbose);
+		next line if (/^branches:\s/);
+		last line if (/^----------------------------$/ || /^=========/);
+		$log{$rev} .= $_;
+	    }
+	    print "E:", $_ if ($verbose);
 	}
-
-	if (scalar %tags || $input{only_with_tag}) {
-		print "<form method=\"get\" action=\"./\">\n";
-		foreach my $var (@stickyvars) {
-			print
-			    "<input type=\"hidden\" name=\"$var\" value=\"$input{$var}\">\n"
-			    if (defined($input{$var})
-			    && (!defined($DEFAULTVALUE{$var})
-			    || $input{$var} ne $DEFAULTVALUE{$var})
-			    && $input{$var} ne "" && $var ne "only_with_tag");
+	close(RCS);
+	print "Done reading RCS file\n" if ($verbose);
+#
+# Sort the revisions into commit-date order.
+	@revorder = sort {$date{$b} <=> $date{$a}} keys %date;
+	print "Done sorting revisions\n" if ($verbose);
+#
+# HEAD is an artificial tag which is simply the highest tag number on the main
+# branch (I think!).  Find it by looking through @revorder; it should at least
+# be near the beginning (In fact, it *should* be the first commit listed on
+# the main branch.)
+	revision:
+	for ($i = 0; $i <= $#revorder; $i++) {
+	    if ($revorder[$i] =~ /^\d+\.\d+$/) {
+		if ($revsym{$revorder[$i]}) {
+		    $revsym{$revorder[$i]} .= ", ";
 		}
-		print "<p><label for=\"only_with_tag\" accesskey=\"T\">";
-		print "Show only files with tag:</label>\n";
-		print "<select id=\"only_with_tag\" name=\"only_with_tag\"";
-		print " onchange=\"this.form.submit()\"" if $use_java_script;
-		print ">";
-		print "<option value=\"\">All tags / default branch</option>\n";
-
-		foreach my $tag (reverse sort { lc $a cmp lc $b } keys %tags) {
-			print "<option",
-			    defined($input{only_with_tag})
-			    && $input{only_with_tag} eq $tag ? " selected" : "",
-			    ">$tag</option>\n";
-		}
-		print "</select>\n";
-		print " <label for=\"path\" accesskey=\"P\">";
-		print "Module path or alias:</label>\n";
-		printf "<input type=\"text\" id=\"path\" name=\"path\" value=\"%s\" size=\"15\">\n",
-		    htmlquote($where);
-		print "<input type=\"submit\" value=\"Go\" accesskey=\"G\"></p>\n";
-		print "</form>\n";
+		$revsym{$revorder[$i]} .= "HEAD";
+		$symrev{"HEAD"} = $revorder[$i];
+		last revision;
+	    }
 	}
+	print "Done finding HEAD\n" if ($verbose);
+#
+# Now that we know all of the revision numbers, we can associate
+# absolute revision numbers with all of the symbolic names, and
+# pass them to the form so that the same association doesn't have
+# to be built then.
+#
+# should make this a case-insensitive sort
+	foreach (sort keys %symrev) {
+	    $rev = $symrev{$_};
+	    if ($rev =~ /^(\d+(\.\d+)+)\.0\.(\d+)$/) {
+		push(@branchnames, $_);
+		#
+		# A revision number of A.B.0.D really translates into
+		# "the highest current revision on branch A.B.D".
+		#
+		# If there is no branch A.B.D, then it translates into
+		# the head A.B .
+		#
+		# This is pure speculation.
+		#
+		$head = $1;
+		$branch = $3;
+		$regex = $head . "." . $branch;
+		$regex =~ s/\./\./g;
+		#             <
+		#           \____/
+		$rev = $head;
 
-	if ($allow_tar) {
-		my ($basefile) = ($where =~ m,(?:.*/)?([^/]+),);
-
-		if (defined($basefile) && $basefile ne '') {
-			print "<hr noshade>\n",
-			    "<div align=\"center\">Download this directory in ";
-
-			# Mangle the filename so browsers show a reasonable
-			# filename to download.
-			print &link("tarball", "./$basefile.tar.gz$query"
-				. ($query ? "&" : "?") . "tarball=1");
-			if ($CMD{zip}) {
-				print " or ",
-				    &link("zip archive", "./$basefile.zip$query"
-					. ($query ? "&" : "?") . "tarball=1");
-			}
-			print "</div>\n";
+		revision:
+		foreach $r (@revorder) {
+		    if ($r =~ /^${regex}/) {
+			$rev = $head . "." . $branch;
+			last revision;
+		    }
 		}
+		$revsym{$rev} .= ", " if ($revsym{$rev});
+		$revsym{$rev} .= $_;
+	    }
+	    $sel .= "<OPTION VALUE=\"${rev}:${_}\">$_\n";
 	}
+	print "Done associating revisions with branches\n" if ($verbose);
+        print &html_header("CVS log for $where");
+	($upwhere = $where) =~ s|[^/]+$||;
+	print "Up to ", &link($upwhere,$scriptname . "/" . $upwhere);
+	print "<BR>\n";
+	print "<A HREF=\"#diff\">Request diff between arbitrary revisions</A>\n";
+	print "<HR NOSHADE>\n";
+# The other possible U.I. I can see is to have each revision be hot
+# and have the first one you click do ?r1=foo
+# and since there's no r2 it keeps going & the next one you click
+# adds ?r2=foo and performs the query.
+# I suppose there's no reason we can't try both and see which one
+# people prefer...
 
-	if ($edit_option_form || defined($input{"options"})) {
-
-		my $formwhere = $scriptwhere;
-		$formwhere =~ s|Attic/?$|| if ($input{'hideattic'});
-
-		print "<form method=\"get\" action=\"${formwhere}\">\n";
-		print "<input type=\"hidden\" name=\"copt\" value=\"1\">\n";
-		if ($cvstree ne $cvstreedefault) {
-			print
-			    "<input type=\"hidden\" name=\"cvsroot\" value=\"$cvstree\">\n";
+	for ($i = 0; $i <= $#revorder; $i++) {
+	    $_ = $revorder[$i];
+	    ($br = $_) =~ s/\.\d+$//;
+	    next if ($onlyonbranch && $br ne $onlyonbranch &&
+					    $_ ne $onlybranchpoint);
+	    print "<a NAME=\"rev$_\"></a>";
+	    foreach $sym (split(", ", $revsym{$_})) {
+		print "<a NAME=\"$sym\"></a>";
+	    }
+	    if ($revsym{$br} && !$nameprinted{$br}) {
+		foreach $sym (split(", ", $revsym{$br})) {
+		    print "<a NAME=\"$sym\"></a>";
 		}
-		print "<center>\n<table cellpadding=\"0\" cellspacing=\"0\">";
-		print "\n<tr style=\"background-color: $columnHeaderColorDefault\">\n";
-		print "<th colspan=\"2\">Preferences</th>\n</tr>\n";
-		print "<tr>\n<td>";
-		print "<label for=\"sortby\" accesskey=\"F\">Sort files by ";
-		print "</label><select id=\"sortby\" name=\"sortby\">\n";
-		print "<option value=\"\">File</option>\n";
-		print "<option", $bydate ? " selected" : "",
-		    " value=\"date\">Age</option>\n";
-		print "<option", $byauthor ? " selected" : "",
-		    " value=\"author\">Author</option>\n"
-		    if ($show_author);
-		print "<option", $byrev ? " selected" : "",
-		    " value=\"rev\">Revision</option>\n";
-		print "<option", $bylog ? " selected" : "",
-		    " value=\"log\">Log message</option>\n";
-		print "</select>\n</td>\n";
-		print "<td><label for=\"logsort\" accesskey=\"L\">";
-		print "Sort log by: </label>";
-		printLogSortSelect(0);
-		print "</td>\n</tr>\n";
-		print "<tr>\n<td><label for=\"f\" accesskey=\"D\">";
-		print "Diff format: </label>";
-		printDiffSelect(0);
-		print "</td>\n";
-		print "<td><label for=\"hideattic\" accesskey=\"A\">";
-		print "Show Attic files: </label>";
-		print "<input id=\"hideattic\" name=\"hideattic\" type=\"checkbox\"",
-		    $input{'hideattic'} ? " checked" : "",
-		     "></td>\n</tr>\n";
-		print "<tr>\n<td align=\"center\" colspan=\"2\">";
-		print "<input type=\"submit\" value=\"Change Options\" accesskey=\"C\">";
-		print "</td>\n</tr>\n</table>\n</center>\n</form>\n";
+		$nameprinted{$br}++;
+	    }
+	    print "\n";
+#	    print "RCS revision <b>$_</b>\n";
+	    print "<A HREF=\"$scriptwhere?rev=$_\"><b>$_</b></A>";
+	    if (/^1\.1\.1\.\d+$/) {
+		print " <i>(vendor branch)</i>";
+	    }
+#	    print "<BR>\n";
+#	    print "Checked in on <i>" . &ctime($date{$_}) . "</i> by ";
+#	    print "<i>" . $author{$_} . "</i><BR>\n";
+	    print " <i>" . &ctime($date{$_}) . "</i> by ";
+	    print "<i>" . $author{$_} . "</i>\n";
+	    if ($revsym{$_}) {
+#		print "CVS Tags: <b>$revsym{$_}</b><BR>\n";
+		print "<BR>CVS Tags: <b>$revsym{$_}</b>";
+	    }
+	    if ($revsym{$br})  {
+#		print "Branch: <b>$revsym{$br}</b><BR>\n";
+		if ($revsym{$_}) {
+		    print "; ";
+		} else {
+		    print "<BR>";
+		}
+		print "Branch: <b>$revsym{$br}</b>";
+	    }
+	    # Find the previous revision on this branch.
+	    # I think this can be done algorithmically.
+	    @prevrev = split(/\./, $_);
+	    if (--$prevrev[$#prevrev] == 0) {
+		# If it was X.Y.Z.1, just make it X.Y
+		if ($#prevrev > 1) {
+		    pop(@prevrev);
+		    pop(@prevrev);
+		} else {
+		    # It was rev 1.1 (XXX does CVS use revisions
+		    # greater than 1.x?)
+		    if ($prevrev[0] != 1) {
+			print "<i>* I can't figure out the previous revision! *</i>\n";
+		    }
+		}
+	    }
+	    if ($prevrev[$#prevrev] != 0) {
+		$prev = join(".", @prevrev);
+		print "<BR><A HREF=\"${scriptwhere}.diff?r1=$prev";
+		print "&r2=$_\">Diffs to $prev</A>\n";
+		#
+		# Plus, if it's on a branch, and it's not a vendor branch,
+		# offer to diff with the immediately-preceding commit if it
+		# is not the previous revision as calculated above
+		# and if it is on the HEAD (or at least on a higher branch)
+		# (e.g. change gets committed and then brought
+		# over to -stable)
+		if (!/^1\.1\.1\.\d+$/ && ($i != $#revorder) &&
+					($prev ne $revorder[$i+1])) {
+		    @tmp1 = split(/\./, $revorder[$i+1]);
+		    @tmp2 = split(/\./, $_);
+		    if ($#tmp1 < $#tmp2) {
+			print "; <A HREF=\"${scriptwhere}.diff?r1=$revorder[$i+1]";
+			print "&r2=$_\">Diffs to $revorder[$i+1]</A>\n";
+		    }
+		}
+	    }
+#	    print "Log message:<BR>\n";
+	    print "<PRE>\n";
+	    print &htmlify($log{$_}, 1);
+	    print "</PRE><HR NOSHADE>\n";
 	}
-	html_footer();
-}
-
-###############################
-# View Files
-###############################
-elsif (-f $fullname . ',v') {
-	if (defined($input{'rev'}) || $doCheckout) {
-		&doCheckout($fullname, $input{'rev'});
-		gzipclose();
-		exit;
+	print "<A NAME=diff>\n";
+	print "This form allows you to request diff's between any two\n";
+	print "revisions of a file.  You may select a symbolic revision\n";
+	print "name using the selection box or you may type in a numeric\n";
+	print "name using the type-in text box.\n";
+	print "</A><P>\n";
+	print "<FORM METHOD=\"GET\" ACTION=\"${scriptwhere}.diff\">\n";
+	print "Diffs between \n";
+	print "<SELECT NAME=\"r1\">\n";
+	print "<OPTION VALUE=\"text\" SELECTED>Use Text Field\n";
+	print $sel;
+	print "</SELECT>\n";
+	print "<INPUT TYPE=\"TEXT\" NAME=\"tr1\" VALUE=\"$revorder[$#revorder]\">\n";
+	print " and \n";
+	print "<SELECT NAME=\"r2\">\n";
+	print "<OPTION VALUE=\"text\" SELECTED>Use Text Field\n";
+	print $sel;
+	print "</SELECT>\n";
+	print "<INPUT TYPE=\"TEXT\" NAME=\"tr2\" VALUE=\"$revorder[0]\">\n";
+	print "<BR><INPUT TYPE=RADIO NAME=\"f\" VALUE=u CHECKED>Unidiff<br>\n";
+	print "<INPUT TYPE=RADIO NAME=\"f\" VALUE=c>Context diff<br>\n";
+	print "<INPUT TYPE=RADIO NAME=\"f\" VALUE=s>Side-by-Side<br>\n";
+	print "<INPUT TYPE=SUBMIT VALUE=\"Get Diffs\">\n";
+	print "</FORM>\n";
+	print "<HR noshade>\n";
+	print "<A name=branch>\n";
+	print "You may select to see revision information from only\n";
+	print "a single branch.\n";
+	print "</A><P>\n";
+	print "<FORM METHOD=\"GET\" ACTION=\"$scriptwhere\">\n";
+	print "Branch: \n";
+	print "<SELECT NAME=\"only_on_branch\">\n";
+	foreach (sort @branchnames) {
+		print "<OPTION>${_}\n";
 	}
-
-	if (defined($input{'annotate'}) && $allow_annotate) {
-		&doAnnotate($input{'annotate'});
-		gzipclose();
-		exit;
-	}
-
-	if (defined($input{'r1'}) && defined($input{'r2'})) {
-		&doDiff(
-			$fullname,     $input{'r1'},
-			$input{'tr1'}, $input{'r2'},
-			$input{'tr2'}, $input{'f'}
-		);
-		gzipclose();
-		exit;
-	}
-	print("going to dolog($fullname)\n") if ($verbose);
-	&doLog($fullname);
-
-	##############################
-	# View Diff
-	##############################
-} elsif ($fullname =~ s/\.diff$// && -f $fullname . ",v" && $input{'r1'}
-    && $input{'r2'})
-{
-
-	# $where-diff-removal if 'cvs rdiff' is used
-	# .. but 'cvs rdiff'doesn't support some options
-	# rcsdiff does (-w and -p), so it is disabled
-	# $where =~ s/\.diff$//;
-
-	# Allow diffs using the ".diff" extension
-	# so that browsers that default to the URL
-	# for a save filename don't save diff's as
-	# e.g. foo.c
-	&doDiff(
-		$fullname,     $input{'r1'}, $input{'tr1'}, $input{'r2'},
-		$input{'tr2'}, $input{'f'}
-	);
-	gzipclose();
+	print "</SELECT>\n";
+	print "<INPUT TYPE=SUBMIT VALUE=\"View Branch\">\n";
+	print "</FORM>\n";
+        print &html_footer;
+	print "</BODY></HTML>\n";
+} elsif ($fullname =~ s/\.diff$// && -f $fullname . ",v" &&
+				$input{'r1'} && $input{'r2'}) {
+	&dodiff($fullname, $input{'r1'}, $input{'tr1'},
+		$input{'r2'}, $input{'tr2'}, $input{'f'});
 	exit;
-} elsif (($newname = $fullname) =~ s|/([^/]+)$|/Attic/$1| && -f $newname . ",v")
-{
-
-	# The file has been removed and is in the Attic.
-	# Send a redirect pointing to the file in the Attic.
-	(my $newplace = $scriptwhere) =~ s|/([^/]+)$|/Attic/$1|;
-	if ($ENV{QUERY_STRING} ne "") {
-		redirect("${newplace}?$ENV{QUERY_STRING}");
-	} else {
-		redirect($newplace);
-	}
-	exit;
-} elsif (0 && (my @files = &safeglob($fullname . ",v"))) {
-	http_header("text/plain");
+} elsif (0 && (@files = &safeglob($fullname . ",v"))) {
+	print "Content-type: text/plain\n\n";
 	print "You matched the following files:\n";
-	print join ("\n", @files);
-
+	print join("\n", @files);
 	# Find the tags from each file
 	# Display a form offering diffs between said tags
 } else {
-	my $fh = do { local (*FH); };
-	my ($xtra, $module);
-
 	# Assume it's a module name with a potential path following it.
-	$xtra = (($module = $where) =~ s|/.*||) ? $& : '';
-
+	($module = $where) =~ s|/.*||;
+	$xtra = $&;
 	# Is there an indexed version of modules?
-	if (open($fh, "< $cvsroot/CVSROOT/modules")) {
-		while (<$fh>) {
-			if (/^(\S+)\s+(\S+)/o && $module eq $1
-			    && -d "$cvsroot/$2" && $module ne $2)
-			{
-				redirect("$scriptname/$2$xtra$query");
+	if (open(MODULES, "$cvsroot/CVSROOT/modules")) {
+		while (<MODULES>) {
+			if (/^${module}\s+(\S+)/o && -d "${cvsroot}/$1" &&
+					$module ne $1) {
+				&redirect($scriptname . '/' . $1 . $xtra);
 			}
 		}
 	}
-	fatal("404 Not Found",
-	      '%s: no such file or directory',
-	      $where);
+	&fatal("404 Not Found","$where: no such file or directory");
 }
 
-gzipclose();
+sub htmlify {
+	local($string, $pr) = @_;
 
-## End MAIN
+	$string =~ s/&/&amp;/g;
+	$string =~ s/</&lt;/g;
+	$string =~ s/>/&gt;/g;
 
-sub printDiffSelect($) {
-	my ($use_java_script) = @_;
-	my $f = $input{'f'};
-
-	print '<select id="f" name="f"';
-	print ' onchange="this.form.submit()"' if $use_java_script;
-	print ">\n";
-
-	local $_;
-	for (@DIFFTYPES) {
-		printf("<option value=\"%s\"%s>%s</option>\n", $_,
-		    $f eq $_ ? ' selected' : '', "\u$DIFFTYPES{$_}{'descr'}");
+	if ($pr) {
+		$string =~ s|\bpr(\W+[a-z]+/\W*)(\d+)|<A HREF=/cgi/query-pr.cgi?pr=$2>$&</A>|ig;
 	}
 
-	print "</select>";
+	$string;
 }
 
-sub printLogSortSelect($) {
-	my ($use_java_script) = @_;
+sub link {
+	local($name, $where) = @_;
 
-	print '<select id="logsort" name="logsort"';
-	print ' onchange="this.form.submit()"' if $use_java_script;
-	print ">\n";
-
-	local $_;
-	for (@LOGSORTKEYS) {
-		printf("<option value=\"%s\"%s>%s</option>\n", $_,
-		    $logsort eq $_ ? ' selected' : '',
-		    "\u$LOGSORTKEYS{$_}{'descr'}");
-	}
-
-	print "</select>";
+	"<A HREF=\"$where\">$name</A>\n";
 }
 
-sub findLastModifiedSubdirs(@) {
-	my (@dirs) = @_;
-	my ($dirname, @files);
+sub revcmp {
+	local($rev1, $rev2) = @_;
+	local(@r1) = split(/\./, $rev1);
+	local(@r2) = split(/\./, $rev2);
+	local($a,$b);
 
-	foreach $dirname (@dirs) {
-		next if ($dirname eq ".");
-		next if ($dirname eq "..");
-		my ($dir) = "$fullname/$dirname";
-		next if (!-d $dir);
-
-		my ($lastmod)     = undef;
-		my ($lastmodtime) = undef;
-		my $dh = do { local (*DH); };
-
-		opendir($dh, $dir) or next;
-		my (@filenames) = readdir($dh);
-		closedir($dh);
-
-		foreach my $filename (@filenames) {
-			$filename = "$dirname/$filename";
-			my ($file) = "$fullname/$filename";
-			next if ($filename !~ /,v$/ || !-f $file);
-			$filename =~ s/,v$//;
-			my $modtime = -M $file;
-
-			if (!defined($lastmod) || $modtime < $lastmodtime) {
-				$lastmod     = $filename;
-				$lastmodtime = $modtime;
-			}
-		}
-		push (@files, $lastmod) if (defined($lastmod));
-	}
-	return @files;
-}
-
-sub htmlify_sub(&$) {
-	(my $proc, local $_) = @_;
-	my @a = split (m`(<a [^>]+>[^<]*</a>)`i);
-	my $linked;
-	my $result = '';
-
-	while (($_, $linked) = splice(@a, 0, 2)) {
-		&$proc();
-		$result .= $_      if defined($_);
-		$result .= $linked if defined($linked);
-	}
-
-	$result;
-}
-
-sub htmlify($;$) {
-	(local $_, my $extra) = @_;
-
-	$_ = htmlquote($_);
-
-	# get URL's as link
-	s{
-      (http|ftp|https)://\S+
-     }{
-	 &link($&, htmlunquote($&))
-     }egx;
-
-	# get e-mails as link
-	$_ = htmlify_sub {
-		s<
-	  [\w+=\-.!]+@[\w\-]+(\.[\w\-]+)+
-	    ><
-	      &link($&, "mailto:$&")
-		>egix;
+	while (($a = shift(@r1)) && ($b = shift(@r2))) {
+	    if ($a != $b) {
+		return $a <=> $b;
 	    }
-	    $_;
-
-	if ($extra) {
-
-		# get PR #'s as link: "PR#nnnn" "PR: nnnn, ..." "PR nnnn, ..." "bin/nnnn"
-		if (defined($prcgi) && defined($re_prkeyword))
-		{
-			my $prev;
-
-			do {
-				$prev = $_;
-
-				$_ = htmlify_sub {
-					s{
-		      (\b$re_prkeyword[:\#]?\s*
-		       (?:
-			\#?
-			\d+[,\s]\s*
-		       )*
-		       \#?)
-		      (\d+)\b
-		     }{
-			 $1 . &link($2, sprintf($prcgi, $2))
-		     }egix;
-				    }
-				    $_;
-			} while ($_ ne $prev);
-
-			if (defined($re_prcategories)) {
-				$_ = htmlify_sub {
-					s{
-			  (\b$re_prcategories/(\d+)\b)
-			}{
-				&link($1, sprintf($prcgi, $2))
-			}egox;
-				    }
-				    $_;
-			}
-		}
-
-		# get manpage specs as link: "foo.1" "foo(1)"
-		if (defined($mancgi)) {
-			$_ = htmlify_sub {
-				s{
-		  (\b([a-zA-Z][\w.]+)
-		   (?:
-		    \( ([0-9n]) \)\B
-		    |
-		    \.([0-9n])\b
-		   )
-		  )
-		 }{
-		     &link($1, sprintf($mancgi, defined($3) ? $3 : $4, $2))
-		 }egx;
-			    }
-			    $_;
-		}
 	}
-
-	$_;
-}
-
-sub spacedHtmlText($;$) {
-	local $_ = $_[0];
-	my $ts = $_[1] || $tabstop;
-
-	# Cut trailing spaces and tabs
-	s/[ \t]+$//;
-
-	if (defined($ts)) {
-
-		# Expand tabs
-		1 while s/\t+/' ' x (length($&) * $ts - length($`) % $ts)/e
-	}
-
-	# replace <tab> and <space> (\001 is to protect us from htmlify)
-	# gzip can make excellent use of this repeating pattern :-)
-	if ($hr_breakable) {
-
-		# make every other space 'breakable'
-		s/  / \001nbsp;/g;    # 2 * <space>
-		                      # leave single space as it is
-	} else {
-		s/ /\001nbsp;/g;
-	}
-
-	$_ = htmlify($_, $allow_source_extra);
-
-	# unescape
-	y/\001/&/;
-
-	return $_;
-}
-
-sub link($$) {
-	my ($name, $url) = @_;
-
-	$url =~ s/:/sprintf("%%%02x", ord($&))/eg
-	    if $url =~ /^[^a-z]/;    # relative
-
-	sprintf '<a href="%s">%s</a>', hrefquote($url), $name;
-}
-
-sub revcmp($$) {
-	my ($rev1, $rev2) = @_;
-
-	# make no comparison for a tag or a branch
-	return 0 if $rev1 =~ /[^\d.]/ || $rev2 =~ /[^\d.]/;
-
-	my (@r1) = split (/\./, $rev1);
-	my (@r2) = split (/\./, $rev2);
-	my ($a, $b);
-
-	while (($a = shift (@r1)) && ($b = shift (@r2))) {
-		if ($a != $b) {
-			return $a <=> $b;
-		}
-	}
 	if (@r1) { return 1; }
 	if (@r2) { return -1; }
 	return 0;
 }
 
-sub fatal($$@) {
-	my ($errcode, $format, @args) = @_;
-	if ($is_mod_perl) {
-		Apache->request->status((split (/ /, $errcode))[0]);
-	} else {
-		print "Status: $errcode\r\n";
-	}
-	html_header("Error");
-	print "<p>Error: ",
-	  sprintf($format, map(htmlquote($_), @args)),
-	  "</p>\n";
-	html_footer();
+sub fatal {
+	local($errcode, $errmsg) = @_;
+	print "Status: $errcode\n";
+	print &html_header("Error");
+#	print "Content-type: text/html\n";
+#	print "\n";
+#	print "<HTML><HEAD><TITLE>Error</TITLE></HEAD>\n";
+#	print "<BODY>Error: $errmsg</BODY></HTML>\n";
+	print "Error: $errmsg\n";
+	print &html_footer;
 	exit(1);
 }
 
-sub redirect($) {
-	my ($url) = @_;
-	if ($is_mod_perl) {
-		Apache->request->status(301);
-		Apache->request->header_out(Location => $url);
-	} else {
-		print "Status: 301 Moved\r\n";
-		print "Location: $url\r\n";
-	}
-	html_header("Moved");
-	print "<p>This document is located ", &link('here', $url), "</p>\n";
-	html_footer();
+sub redirect {
+	local($url) = @_;
+	print "Status: 301 Moved\n";
+	print "Location: $url\n";
+	print &html_header("Moved");
+#	print "Content-type: text/html\n";
+#	print "\n";
+#	print "<HTML><HEAD><TITLE>Moved</TITLE></HEAD>\n";
+#	print "<BODY>This document is located <A HREF=$url>here</A>.</BODY></HTML>\n";
+	print "This document is located <A HREF=$url>here</A>.\n";
+	print &html_footer;
 	exit(1);
 }
 
-sub safeglob($) {
-	my ($filename) = @_;
-	my ($dirname);
-	my (@results);
-	my $dh = do { local (*DH); };
+sub safeglob {
+	local($filename) = @_;
+	local($dirname);
+	local(@results);
 
 	($dirname = $filename) =~ s|/[^/]+$||;
 	$filename =~ s|.*/||;
 
-	if (opendir($dh, $dirname)) {
-		my $glob = $filename;
-		my $t;
-
-		#	transform filename from glob to regex.  Deal with:
-		#	[, {, ?, * as glob chars
-		#	make sure to escape all other regex chars
-		$glob =~ s/([\.\(\)\|\+])/\\$1/g;
+	if (opendir(DIR, $dirname)) {
+		$glob = $filename;
+	#	transform filename from glob to regex.  Deal with:
+	#	[, {, ?, * as glob chars
+	#	make sure to escape all other regex chars
+		$glob =~ s/\./\./g;
 		$glob =~ s/\*/.*/g;
 		$glob =~ s/\?/./g;
-		$glob =~ s/{([^}]+)}/($t = $1) =~ s-,-|-g; "($t)"/eg;
-		foreach (readdir($dh)) {
-
+		foreach (readdir(DIR)) {
 			if (/^${glob}$/) {
-				push (@results, "$dirname/" . $_);
+				push(@results, $dirname . "/" .$_);
 			}
 		}
-		closedir($dh);
 	}
 
 	@results;
 }
+sub checkout {
+	local($fullname, $rev) = @_;
 
-sub search_path($) {
-	my ($command) = @_;
-	my $d;
-
-	for $d (split (/:/, $command_path)) {
-		return "$d/$command" if -x "$d/$command";
-	}
-
-	'';
-}
-
-sub getMimeTypeFromSuffix($) {
-	my ($fullname) = @_;
-	my ($mimetype, $suffix);
-	my $fh = do { local (*FH); };
-
-	($suffix = $fullname) =~ s/^.*\.([^.]*)$/$1/;
-	$mimetype = $MTYPES{$suffix};
-	$mimetype = $MTYPES{'*'} if (!$mimetype);
-
-	if (!$mimetype && -f $mime_types) {
-
-		# okey, this is something special - search the
-		# mime.types database
-		open($fh, "<$mime_types");
-		while (<$fh>) {
-			if ($_ =~ /^\s*(\S+\/\S+).*\b$suffix\b/) {
-				$mimetype = $1;
-				last;
-			}
-		}
-		close($fh);
-	}
-
-	# okey, didn't find anything useful ..
-	if (!($mimetype =~ /\S\/\S/)) {
-		$mimetype = "text/plain";
-	}
-	return $mimetype;
-}
-
-###############################
-# read first lines like head(1)
-###############################
-sub head($;$) {
-	my $fh        = $_[0];
-	my $linecount = $_[1] || 10;
-
-	my @buf;
-
-	if ($linecount > 0) {
-		my $i;
-		for ($i = 0 ; !eof($fh) && $i < $linecount ; $i++) {
-			push @buf, scalar <$fh>;
-		}
+	open(RCS, "co -p$rev '$fullname' 2>&1 |") ||
+	    &fail("500 Internal Error", "Couldn't co: $!");
+# /home/ncvs/src/sys/netinet/igmp.c,v  -->  standard output
+# revision 1.1.1.2
+# /*
+	$_ = <RCS>;
+	if (/^$fullname,v\s+-->\s+standard output\s*$/o) {
+	    # As expected
 	} else {
-		@buf = <$fh>;
+	    &fatal("500 Internal Error",
+		"Unexpected output from co: $_");
 	}
-
-	@buf;
-}
-
-###############################
-# scan vim and Emacs directives
-###############################
-sub scan_directives(@) {
-	my $ts = undef;
-
-	for (@_) {
-		$ts = $1 if /\b(?:ts|tabstop|tab-width)[:=]\s*([1-9]\d*)\b/;
-	}
-
-	('tabstop' => $ts);
-}
-
-sub openOutputFilter() {
-	return if !defined($output_filter) || $output_filter eq '';
-
-	open(STDOUT, "|-") and return;
-
-	# child of child
-	open(STDERR, '>/dev/null');
-	exec($output_filter) or exit -1;
-}
-
-###############################
-# show Annotation
-###############################
-sub doAnnotate($$) {
-	my ($rev) = @_;
-	my ($pid);
-	my ($pathname, $filename);
-	my $reader = do { local (*FH); };
-	my $writer = do { local (*FH); };
-
-	# make sure the revisions are wellformed, for security
-	# reasons ..
-	if ($rev =~ /[^\w.]/) {
-		fatal("404 Not Found",
-		      'Malformed query "%s"',
-		      $ENV{QUERY_STRING});
-	}
-
-	if (&forbidden_file($fullname)) {
-		fatal("403 Forbidden",
-		      'Access forbidden.  This file is mentioned in @ForbiddenFiles');
-		return;
-	}
-
-	($pathname = $where) =~ s/(Attic\/)?[^\/]*$//;
-	($filename = $where) =~ s/^.*\///;
-
-	# this seems to be necessary
-	$| = 1;
-	$| = 0;    # Flush
-
-	# this annotate version is based on the
-	# cvs annotate-demo Perl script by Cyclic Software
-	# It was written by Cyclic Software, http://www.cyclic.com/, and is in
-	# the public domain.
-	# we could abandon the use of rlog, rcsdiff and co using
-	# the cvsserver in a similiar way one day (..after rewrite)
-	$pid = open2($reader, $writer, $CMD{cvs}, @cvs_options, "server")
-	    or fatal("500 Internal Error",
-		     'Fatal Error - unable to open cvs for annotation');
-
-	# OK, first send the request to the server.  A simplified example is:
-	#     Root /home/kingdon/zwork/cvsroot
-	#     Argument foo/xx
-	#     Directory foo
-	#     /home/kingdon/zwork/cvsroot/foo
-	#     Directory .
-	#     /home/kingdon/zwork/cvsroot
-	#     annotate
-	# although as you can see there are a few more details.
-
-	print $writer "Root $cvsroot\n";
-	print $writer
-	    "Valid-responses ok error Valid-requests Checked-in Updated Merged Removed M E\n";
-
-	# Don't worry about sending valid-requests, the server just needs to
-	# support "annotate" and if it doesn't, there isn't anything to be done.
-	print $writer "UseUnchanged\n";
-	print $writer "Argument -r\n";
-	print $writer "Argument $rev\n";
-	print $writer "Argument $where\n";
-
-	# The protocol requires us to fully fake a working directory (at
-	# least to the point of including the directories down to the one
-	# containing the file in question).
-	# So if $where is "dir/sdir/file", then @dirs will be ("dir","sdir","file")
-	my @dirs = split ('/', $where);
-	my $path = "";
-	foreach (@dirs) {
-
-		if ($path eq "") {
-
-			# In our example, $_ is "dir".
-			$path = $_;
-		} else {
-			print $writer "Directory $path\n";
-			print $writer "$cvsroot/$path\n";
-
-			# In our example, $_ is "sdir" and $path becomes "dir/sdir"
-			# And the next time, "file" and "dir/sdir/file" (which then gets
-			# ignored, because we don't need to send Directory for the file).
-			$path .= "/$_";
-		}
-	}
-
-	# And the last "Directory" before "annotate" is the top level.
-	print $writer "Directory .\n";
-	print $writer "$cvsroot\n";
-
-	print $writer "annotate\n";
-
-	# OK, we've sent our command to the server.  Thing to do is to
-	# close the writer side and get all the responses.  If "cvs server"
-	# were nicer about buffering, then we could just leave it open, I think.
-	close($writer) or die "cannot close: $!";
-
-	http_header();
-
-	navigateHeader($scriptwhere, $pathname, $filename, $rev, "annotate");
-	print
-	    "<h3 style=\"text-align: center\">Annotation of $pathname$filename, Revision $rev</h3>\n";
-
-	# Ready to get the responses from the server.
-	# For example:
-	#     E Annotations for foo/xx
-	#     E ***************
-	#     M 1.3          (kingdon  06-Sep-97): hello
-	#     ok
-	my ($lineNr) = 0;
-	my ($oldLrev, $oldLusr) = ("", "");
-	my ($revprint, $usrprint);
-
-	if ($annTable) {
-		print "<table style=\"border: none\" cellspacing=\"0\" cellpadding=\"0\">\n";
+	$_ = <RCS>;
+	if (/^revision\s+$rev\s*$/) {
+	    # As expected
 	} else {
-		print "<pre>";
+	    &fatal("500 Internal Error",
+		"Unexpected output from co: $_");
 	}
-
-	# prefetch several lines
-	my @buf = head($reader);
-
-	my %d = scan_directives(@buf);
-
-	while (@buf || !eof($reader)) {
-		$_ = @buf ? shift @buf : <$reader>;
-
-		my @words = split;
-
-		# Adding one is for the (single) space which follows $words[0].
-		my $rest = substr($_, length($words[0]) + 1);
-		if ($words[0] eq "E") {
-			next;
-		} elsif ($words[0] eq "M") {
-			$lineNr++;
-			(my $lrev = substr($_, 2,  13)) =~ y/ //d;
-			(my $lusr = substr($_, 16, 9))  =~ y/ //d;
-			my $line = substr($_, 36);
-			my $isCurrentRev = ($rev eq $lrev);
-
-			# we should parse the date here ..
-			if ($lrev eq $oldLrev) {
-				$revprint = sprintf('%-8s', '');
-			} else {
-				$revprint = sprintf('%-8s', $lrev);
-				$revprint =~
-				    s`\S+`&link($&, "$scriptwhere$query#rev$&")`e
-				    ;    # `
-				$oldLusr = '';
-			}
-
-			if ($lusr eq $oldLusr) {
-				$usrprint = '';
-			} else {
-				$usrprint = $lusr;
-			}
-			$oldLrev = $lrev;
-			$oldLusr = $lusr;
-
-			# Set bold for text-based browsers only - graphical
-			# browsers show bold fonts a bit wider than regular fonts,
-			# so it looks irregular.
-			print "<b>" if ($isCurrentRev && $is_textbased);
-
-			printf "%s%s %-8s %4d:", $revprint,
-			    $isCurrentRev ? '!' : ' ', $usrprint, $lineNr;
-			print spacedHtmlText($line, $d{'tabstop'});
-
-			print "</b>" if ($isCurrentRev && $is_textbased);
-		} elsif ($words[0] eq "ok") {
-
-			# We could complain about any text received after this, like the
-			# CVS command line client.  But for simplicity, we don't.
-		} elsif ($words[0] eq "error") {
-			fatal("500 Internal Error",
-			      'Error occured during annotate: <b>%s</b>',
-			      $_);
-		}
-	}
-
-	if ($annTable) {
-		print "</table>";
-	} else {
-		print "</pre>";
-	}
-	close($reader) or warn "cannot close: $!";
-	wait;
-}
-
-###############################
-# make Checkout
-###############################
-sub doCheckout($$) {
-	my ($fullname, $rev) = @_;
-	my ($mimetype, $revopt);
-	my $fh = do { local (*FH); };
-
-	if ($rev eq 'HEAD' || $rev eq '.') {
-		$rev = undef;
-	}
-
-	# make sure the revisions a wellformed, for security
-	# reasons ..
-	if (defined($rev) && $rev =~ /[^\w.]/) {
-		fatal("404 Not Found",
-		      'Malformed query "%s"',
-		      $ENV{QUERY_STRING});
-	}
-
-	if (&forbidden_file($fullname)) {
-		fatal("403 Forbidden",
-		      'Access forbidden.  This file is mentioned in @ForbiddenFiles');
-		return;
-	}
-
-	# get mimetype
-	if (defined($input{"content-type"})
-	    && ($input{"content-type"} =~ /\S\/\S/))
-	{
-		$mimetype = $input{"content-type"}
-	} else {
-		$mimetype = &getMimeTypeFromSuffix($fullname);
-	}
-
-	if (defined($rev)) {
-		$revopt = "-r$rev";
-		if ($use_moddate) {
-			readLog($fullname, $rev);
-			$moddate = $date{$rev};
-		}
-	} else {
-		$revopt = "-rHEAD";
-
-		if ($use_moddate) {
-			readLog($fullname);
-			$moddate = $date{$symrev{HEAD}};
-		}
-	}
-
-	### just for the record:
-	### 'cvs co' seems to have a bug regarding single checkout of
-	### directories/files having spaces in it;
-	### this is an issue that should be resolved on cvs's side
-	#
-	# Safely for a child process to read from.
-	if (!open($fh, "-|")) {    # child
-		 # chdir to $tmpdir before to avoid non-readable cgi-bin directories
-		chdir($tmpdir);
-		open(STDERR, ">&STDOUT");    # Redirect stderr to stdout
-
-		# work around a bug of cvs -p; expand symlinks
-		use Cwd 'abs_path';
-		exec($CMD{cvs}, @cvs_options,
-		     '-d', abs_path($cvsroot),
-		     'co', '-p',
-		     $revopt, $where) or exit -1;
-	}
-
-	if (eof($fh)) {
-		fatal("404 Not Found",
-		      '%s is not (any longer) pertinent',
-		      $where);
-	}
-
-	#===================================================================
-	#Checking out squid/src/ftp.c
-	#RCS:  /usr/src/CVS/squid/src/ftp.c,v
-	#VERS: 1.1.1.28.6.2
-	#***************
-
-	# Parse CVS header
-	my ($revision, $filename, $cvsheader);
-	$filename = "";
-	while (<$fh>) {
-		last if (/^\*\*\*\*/);
-		$revision = $1 if (/^VERS: (.*)$/);
-
-		if (/^Checking out (.*)$/) {
-			$filename = $1;
-			$filename =~ s/^\.\/*//;
-		}
-		$cvsheader .= $_;
-	}
-
-	if ($filename ne $where) {
-		fatal("500 Internal Error",
-		      'Unexpected output from cvs co: %s',
-		      $cvsheader);
-	}
 	$| = 1;
-
-	if ($mimetype eq "text/x-cvsweb-markup") {
-		&cvswebMarkup($fh, $fullname, $revision);
-	} else {
-		http_header($mimetype);
-		print <$fh>;
-	}
-	close($fh);
+	print "Content-type: text/plain\n\n";
+	print <RCS>;
+	close(RCS);
 }
 
-sub cvswebMarkup($$$) {
-	my ($filehandle, $fullname, $revision) = @_;
-	my ($pathname,   $filename);
+sub dodiff {
+	local($fullname, $r1, $tr1, $r2, $tr2, $f) = @_;
 
-	($pathname = $where) =~ s/(Attic\/)?[^\/]*$//;
-	($filename = $where) =~ s/^.*\///;
-	my ($fileurl) = urlencode($filename);
-
-	http_header();
-
-	navigateHeader($scriptwhere, $pathname, $filename, $revision, "view");
-	print "<hr noshade>";
-	print "<table width=\"100%\">\n<tr>\n<td style=\"background-color: $markupLogColor\">";
-	print "File: ", &clickablePath($where, 1);
-	print "&nbsp;(";
-	&download_link($fileurl, $revision, "download");
-	print ")";
-
-	if (!$defaultTextPlain) {
-		print "&nbsp;(";
-		&download_link($fileurl, $revision, "as text", "text/plain");
-		print ")";
-	}
-	print "<br>\n";
-
-	if ($show_log_in_markup) {
-		readLog($fullname);    #,$revision);
-		printLog($revision, 0);
-	} else {
-		print "Version: <b>$revision</b><br>\n";
-		print "Tag: <b>", $input{only_with_tag}, "</b><br>\n"
-		    if $input{only_with_tag};
-	}
-	print "</td>\n</tr>\n</table>";
-	my $url = download_url($fileurl, $revision, $mimetype);
-	print "<hr noshade>";
-
-	if ($mimetype =~ /^image/) {
-		printf '<img src="%s" alt=""><br>', hrefquote("$url$barequery");
-	} elsif ($mimetype =~ m%^application/pdf%) {
-		printf '<embed src="%s" width="100%"><br>',
-		    hrefquote("$url$barequery");
-	} elsif ($preformat_in_markup) {
-		print "<pre>";
-
-		# prefetch several lines
-		my @buf = head($filehandle);
-
-		my %d = scan_directives(@buf);
-
-		while (@buf || !eof($filehandle)) {
-			$_ = @buf ? shift @buf : <$filehandle>;
-
-			print spacedHtmlText($_, $d{'tabstop'});
-		}
-		print "</pre>";
-	} else {
-		print "<pre>";
-
-		while (<$filehandle>) {
-			print htmlquote($_);
-		}
-		print "</pre>";
-	}
-}
-
-sub viewable($) {
-	my ($mimetype) = @_;
-
-	$mimetype =~ m%^((text|image)/|application/pdf)%;
-}
-
-###############################
-# Show Colored Diff
-###############################
-sub doDiff($$$$$$) {
-	my ($fullname, $r1, $tr1, $r2, $tr2, $f) = @_;
-	my $fh = do { local (*FH); };
-	my ($rev1, $rev2, $sym1, $sym2, $f1, $f2);
-
-	if (&forbidden_file($fullname)) {
-		fatal("403 Forbidden",
-		      'Access forbidden.  This file is mentioned in @ForbiddenFiles');
-		return;
-	}
-
 	if ($r1 =~ /([^:]+)(:(.+))?/) {
-		$rev1 = $1;
-		$sym1 = $3;
+	    $rev1 = $1;
+	    $sym1 = $3;
 	}
-	if ($r1 eq 'text') {
-		$rev1 = $tr1;
-		$sym1 = "";
+	if ($rev1 eq 'text') {
+	    $rev1 = $tr1;
 	}
-
 	if ($r2 =~ /([^:]+)(:(.+))?/) {
-		$rev2 = $1;
-		$sym2 = $3;
+	    $rev2 = $1;
+	    $sym2 = $3;
 	}
-	if ($r2 eq 'text') {
-		$rev2 = $tr2;
-		$sym2 = "";
+	if ($rev2 eq 'text') {
+	    $rev2 = $tr2;
 	}
-
-	# make sure the revisions a wellformed, for security
-	# reasons ..
-	if ($rev1 =~ /[^\w.]/ || $rev2 =~ /[^\w.]/) {
-		fatal("404 Not Found",
-		      'Malformed query "%s"',
-		      $ENV{QUERY_STRING});
+	if (!($rev1 =~ /^[\d\.]+$/) || !($rev2 =~ /^[\d\.]+$/)) {
+	    &fatal("404 Not Found",
+		    "Malformed query \"$ENV{'QUERY_STRING'}\"");
 	}
-
-	#
-	# rev1 and rev2 are now both numeric revisions.
-	# Thus we do a DWIM here and swap them if rev1 is after rev2.
-	# XXX should we warn about the fact that we do this?
-	if (&revcmp($rev1, $rev2) > 0) {
-		my ($tmp1, $tmp2) = ($rev1, $sym1);
-		($rev1, $sym1) = ($rev2, $sym2);
-		($rev2, $sym2) = ($tmp1, $tmp2);
+#
+# rev1 and rev2 are now both numeric revisions.
+# Thus we do a DWIM here and swap them if rev1 is after rev2.
+# XXX should we warn about the fact that we do this?
+	if (&revcmp($rev1,$rev2) > 0) {
+	    ($tmp1, $tmp2) = ($rev1, $sym1);
+	    ($rev1, $sym1) = ($rev2, $sym2);
+	    ($rev2, $sym2) = ($tmp1, $tmp2);
 	}
-	my $difftype = $DIFFTYPES{$f};
-
-	if (!$difftype) {
-		fatal("400 Bad arguments",
-		      'Diff format %s not understood',
-		      $f);
-	}
-
-	my @difftype       = @{$difftype->{'opts'}};
-	my $human_readable = $difftype->{'colored'};
-
-	# apply special options
-	if ($showfunc) {
-		push @difftype, '-p' if $f ne 's';
-
-		my ($re1, $re2);
-
-		while (($re1, $re2) = each %funcline_regexp) {
-			if ($fullname =~ /$re1/) {
-				push @difftype, '-F', $re2;
-				last;
-			}
-		}
-	}
-
-	if ($human_readable) {
-		if ($hr_ignwhite) {
-			push @difftype, '-w';
-		}
-		if ($hr_ignkeysubst) {
-			push @difftype, '-kk';
-		}
-	}
-
-	if (!open($fh, "-|")) {    # child
-		open(STDERR, ">&STDOUT");    # Redirect stderr to stdout
-		openOutputFilter();
-		exec($CMD{rcsdiff}, @difftype, "-r$rev1", "-r$rev2", $fullname) or exit -1;
-	}
-	if ($human_readable) {
-		http_header();
-		&human_readable_diff($fh, $rev2);
-		html_footer();
-		gzipclose();
-		exit;
+#
+#	XXX Putting '-p' here is a personal preference
+	if ($f eq 'c') {
+	    $difftype = '-p -c';
+	    $diffname = "Context diff";
+	} elsif ($f eq 's') {
+	    $difftype = '--side-by-side --width=164';
+	    $diffname = "Side by Side";
 	} else {
-		http_header("text/plain");
+	    $difftype = '-p -u';
+	    $diffname = "Unidiff";
 	}
-
-	#
-	#===================================================================
-	#RCS file: /home/ncvs/src/sys/netinet/tcp_output.c,v
-	#retrieving revision 1.16
-	#retrieving revision 1.17
-	#diff -c -r1.16 -r1.17
-	#*** /home/ncvs/src/sys/netinet/tcp_output.c     1995/11/03 22:08:08     1.16
-	#--- /home/ncvs/src/sys/netinet/tcp_output.c     1995/12/05 17:46:35     1.17
-	#
-	# Ideas:
-	# - nuke the stderr output if it's what we expect it to be
-	# - Add "no differences found" if the diff command supplied no output.
-	#
-	#*** src/sys/netinet/tcp_output.c     1995/11/03 22:08:08     1.16
-	#--- src/sys/netinet/tcp_output.c     1995/12/05 17:46:35     1.17 RELENG_2_1_0
-	# (bogus example, but...)
-	#
-	if (grep { $_ eq '-u' } @difftype) {
-		$f1 = '---';
-		$f2 = '\+\+\+';
-	} else {
-		$f1 = '\*\*\*';
-		$f2 = '---';
-	}
-
-	while (<$fh>) {
-		if (m|^$f1 $cvsroot|o) {
-			s|$cvsroot/||o;
-			if ($sym1) {
-				chop;
-				$_ .= " $sym1\n";
-			}
-		} elsif (m|^$f2 $cvsroot|o) {
-			s|$cvsroot/||o;
-
-			if ($sym2) {
-				chop;
-				$_ .= " $sym2\n";
-			}
-		}
-		print $_;
-	}
-	close($fh);
-}
-
-###############################
-# Show Logs ..
-###############################
-sub getDirLogs($$@) {
-	my ($cvsroot, $dirname, @otherFiles) = @_;
-	my ($state, $otherFiles, $tag, $file, $date, $branchpoint, $branch,
-	    $log);
-	my ($rev, $revision, $revwanted, $filename, $head, $author);
-
-	$tag = $input{only_with_tag};
-
-	my ($DirName) = "$cvsroot/$where";
-	my (@files, @filetags);
-	my $fh = do { local (*FH); };
-
-	push (@files, &safeglob("$DirName/*,v"));
-	push (@files, &safeglob("$DirName/Attic/*,v"))
-	    if (!$input{'hideattic'});
-	foreach $file (@otherFiles) {
-		push (@files, "$DirName/$file");
-	}
-
-	# just execute rlog if there are any files
-	if ($#files < 0) {
-		return;
-	}
-
-	if (defined($tag)) {
-
-		#can't use -r<tag> as - is allowed in tagnames, but misinterpreated by rlog..
-		if (!open($fh, "-|")) {    # child
-			open(STDERR, '>/dev/null'); # rlog may complain; ignore.
-			openOutputFilter();
-			exec($CMD{rlog}, @files) or exit -1;
-		}
-	} else {
-
-		if (!open($fh, "-|")) {    # child
-			open(STDERR, '>/dev/null'); # rlog may complain; ignore.
-			openOutputFilter();
-			exec($CMD{rlog}, '-r', @files) or exit -1;
-		}
-	}
-	$state = "start";
-
-	while (<$fh>) {
-		if ($state eq "start") {
-
-			#Next file. Initialize file variables
-			$rev         = '';
-			$revwanted   = '';
-			$branch      = '';
-			$branchpoint = '';
-			$filename    = '';
-			$log         = '';
-			$revision    = '';
-			%symrev      = ();
-			@filetags    = ();
-
-			#jump to head state
-			$state = "head";
-		}
-		print "$state:$_" if ($verbose);
-		again:
-
-		if ($state eq "head") {
-
-			#$rcsfile = $1 if (/^RCS file: (.+)$/); #not used (yet)
-
-			if (/^Working file: (.+)$/) {
-				$filename = $1;
-			} elsif (/^head: (.+)$/) {
-				$head = $1;
-			} elsif (/^branch: (.+)$/) {
-				$branch = $1
-			} elsif (/^symbolic names:/) {
-				$state = "tags";
-				($branch = $head) =~ s/\.\d+$//
-				    if $branch eq '';
-				$branch =~ s/(\d+)$/0.$1/;
-				$symrev{MAIN}  = $branch;
-				$symrev{HEAD}  = $branch;
-				$alltags{MAIN} = 1;
-				$alltags{HEAD} = 1;
-				push (@filetags, "MAIN", "HEAD");
-			} elsif (/$LOG_REVSEPARATOR/o) {
-				$state = "log";
-				$rev   = '';
-				$date  = '';
-				$log   = '';
-
-				# Try to reconstruct the relative filename if RCS spits out a full path
-				$filename =~ s%^\Q$DirName\E/%%;
-			}
-			next;
-		}
-
-		if ($state eq "tags") {
-			if (/^\s+([^:]+):\s+([\d\.]+)\s*$/) {
-				push (@filetags, $1);
-				$symrev{$1}  = $2;
-				$alltags{$1} = 1;
-				next;
-			} elsif (/^\S/) {
-
-				if (defined($tag)) {
-					if (defined($symrev{$tag})
-					    || $tag eq "HEAD")
-					{
-						$revwanted =
-						    $symrev{$tag eq "HEAD" ?
-						    "MAIN" : $tag};
-						($branch = $revwanted) =~
-						    s/\b0\.//;
-						($branchpoint = $branch) =~
-						    s/\.?\d+$//;
-						$revwanted = ''
-						    if ($revwanted ne $branch);
-					} elsif ($tag ne "HEAD") {
-						print
-						    "Tag not found, skip this file"
-						    if ($verbose);
-						$state = "skip";
-						next;
-					}
-				}
-
-				foreach my $tagfound (@filetags) {
-					$tags{$tagfound} = 1;
-				}
-				$state = "head";
-				goto again;
-			}
-		}
-
-		if ($state eq "log") {
-			if (/$LOG_REVSEPARATOR/o || /$LOG_FILESEPARATOR/o) {
-
-				# End of a log entry.
-				my $revbranch = $rev;
-				$revbranch =~ s/\.\d+$//;
-				print "$filename $rev Wanted: $revwanted ",
-				    "Revbranch: $revbranch Branch: $branch ",
-				    "Branchpoint: $branchpoint\n"
-				    if ($verbose);
-
-				if ($revwanted eq '' && $branch ne ''
-				    && $branch eq $revbranch || !defined($tag))
-				{
-					print
-					    "File revision $rev found for branch $branch\n"
-					    if ($verbose);
-					$revwanted = $rev;
-				}
-
-				if ($revwanted ne '' ? $rev eq $revwanted :
-				    $branchpoint ne '' ? $rev eq $branchpoint :
-				    0 && ($rev eq $head))
-				{    # Don't think head is needed here..
-					print
-					    "File info $rev found for $filename\n"
-					    if ($verbose);
-					my @finfo =
-					    ($rev, $date, $log, $author,
-						$filename);
-					my ($name);
-					($name = $filename) =~ s%/.*%%;
-					$fileinfo{$name} = [@finfo];
-					$state = "done" if ($rev eq $revwanted);
-				}
-				$rev  = '';
-				$date = '';
-				$log  = '';
-			} elsif ($date eq ''
-			    && m|^date:\s+(\d+)/(\d+)/(\d+)\s+(\d+):(\d+):(\d+);|
-			    )
-			{
-				my $yr = $1;
-
-				# damn 2-digit year routines :-)
-				if ($yr > 100) {
-					$yr -= 1900;
-				}
-				$date =
-				    &Time::Local::timegm($6, $5, $4, $3, $2 - 1,
-					$yr);
-				($author) = /author: ([^;]+)/;
-				$state = "log";
-				$log   = '';
-				next;
-			} elsif ($rev eq '' && /^revision (\d+(?:\.\d+)+).*$/) {
-				$rev = $1; # .*$ eats up the locker(lockers?) info, if any
-				next;
-			} else {
-				$log .= $_;
-			}
-		}
-
-		if (/$LOG_FILESEPARATOR/o) {
-			$state = "start";
-			next;
-		}
-	}
-
-	if ($. == 0) {
-		fatal("500 Internal Error",
-		      'Failed to spawn GNU rlog on <em>"%s"</em>.  <p>Did you set the <b>$command_path</b> in your configuration file correctly ? (Currently "%s"',
-		      join (", ", @files), $command_path);
-	}
-	close($fh);
-}
-
-sub readLog($;$) {
-	my ($fullname, $revision) = @_;
-	my ($symnames, $head, $rev, $br, $brp, $branch, $branchrev);
-	my $fh = do { local (*FH); };
-
-	if (defined($revision)) {
-		$revision = "-r$revision";
-	} else {
-		$revision = "";
-	}
-
-	undef %symrev;
-	undef %revsym;
-	undef @allrevisions;
-	undef %date;
-	undef %author;
-	undef %state;
-	undef %difflines;
-	undef %log;
-
-	print("Going to rlog '$fullname'\n") if ($verbose);
-	if (!open($fh, "-|")) {    # child
-		if ($revision ne '') {
-			openOutputFilter();
-			exec($CMD{rlog}, $revision, $fullname) or exit -1;
-		} else {
-			openOutputFilter();
-			exec($CMD{rlog}, $fullname) or exit -1;
-		}
-	}
-
-	while (<$fh>) {
-		print if ($verbose);
-		if ($symnames) {
-			if (/^\s+([^:]+):\s+([\d\.]+)/) {
-				$symrev{$1} = $2;
-			} else {
-				$symnames = 0;
-			}
-		} elsif (/^head:\s+([\d\.]+)/) {
-			$head = $1;
-		} elsif (/^branch:\s+([\d\.]+)/) {
-			$curbranch = $1;
-		} elsif (/^symbolic names/) {
-			$symnames = 1;
-		} elsif (/^-----/) {
-			last;
-		}
-	}
-	($curbranch = $head) =~ s/\.\d+$// if (!defined($curbranch));
-
-	# each log entry is of the form:
-	# ----------------------------
-	# revision 3.7.1.1
-	# date: 1995/11/29 22:15:52;  author: fenner;  state: Exp;  lines: +5 -3
-	# log info
-	# ----------------------------
-
-	# For a locked revision, the first line after the separator 
-	# becomes smth like
-	# revision 9.19	locked by: vassilii;
-
-	logentry:
-
-	while (!/$LOG_FILESEPARATOR/o) {
-		$_ = <$fh>;
-		last logentry if (!defined($_));    # EOF
-		print "R:", $_ if ($verbose);
-		if (/^revision (\d+(?:\.\d+)+)/) {
-			$rev = $1;
-			unshift (@allrevisions, $rev);
-		} elsif (/$LOG_FILESEPARATOR/o || /$LOG_REVSEPARATOR/o) {
-			next logentry;
-		} else {
-
-			# The rlog output is syntactically ambiguous.  We must
-			# have guessed wrong about where the end of the last log
-			# message was.
-			# Since this is likely to happen when people put rlog output
-			# in their commit messages, don't even bother keeping
-			# these lines since we don't know what revision they go with
-			# any more.
-			next logentry;
-		}
-		$_ = <$fh>;
-		print "D:", $_ if ($verbose);
-		if (
-		    m|^date:\s+(\d+)/(\d+)/(\d+)\s+(\d+):(\d+):(\d+);\s+author:\s+(\S+);\s+state:\s+(\S+);\s+(lines:\s+([0-9\s+-]+))?|
-		    )
-		{
-			my $yr = $1;
-
-			# damn 2-digit year routines :-)
-			if ($yr > 100) {
-				$yr -= 1900;
-			}
-			$date{$rev} =
-			    &Time::Local::timegm($6, $5, $4, $3, $2 - 1, $yr);
-			$author{$rev}    = $7;
-			$state{$rev}     = $8;
-			$difflines{$rev} = $10;
-		} else {
-			fatal("500 Internal Error",
-			      'Error parsing RCS output: %s',
-			      $_);
-		}
-		line:
-
-		while (<$fh>) {
-			print "L:", $_ if ($verbose);
-			next line if (/^branches:\s/);
-			last line
-			    if (/$LOG_FILESEPARATOR/o || /$LOG_REVSEPARATOR/o);
-			$log{$rev} .= $_;
-		}
-		print "E:", $_ if ($verbose);
-	}
-	close($fh);
-	print "Done reading RCS file\n" if ($verbose);
-
-	@revorder = reverse sort { revcmp($a, $b) } @allrevisions;
-	print "Done sorting revisions", join (" ", @revorder), "\n"
-	    if ($verbose);
-
-	#
-	# HEAD is an artificial tag which is simply the highest tag number on the main
-	# branch, unless there is a branch tag in the RCS file in which case it's the
-	# highest revision on that branch.  Find it by looking through @revorder; it
-	# is the first commit listed on the appropriate branch.
-	# This is not neccesary the same revision as marked as head in the RCS file.
-	my $headrev = $curbranch || "1";
-	($symrev{"MAIN"} = $headrev) =~ s/(\d+)$/0.$1/;
-
-	foreach $rev (@revorder) {
-		if ($rev =~ /^(\S*)\.\d+$/ && $headrev eq $1) {
-			$symrev{"HEAD"} = $rev;
-			last;
-		}
-	}
-	($symrev{"HEAD"} = $headrev) =~ s/\.\d+$//
-	    if (!defined($symrev{"HEAD"}));
-	print "Done finding HEAD\n" if ($verbose);
-
-	#
-	# Now that we know all of the revision numbers, we can associate
-	# absolute revision numbers with all of the symbolic names, and
-	# pass them to the form so that the same association doesn't have
-	# to be built then.
-	#
-	undef @branchnames;
-	undef %branchpoint;
-	undef $sel;
-
-	foreach (reverse sort keys %symrev) {
-		$rev = $symrev{$_};
-		if ($rev =~ /^((.*)\.)?\b0\.(\d+)$/) {
-			push (@branchnames, $_);
-
-			#
-			# A revision number of A.B.0.D really translates into
-			# "the highest current revision on branch A.B.D".
-			#
-			# If there is no branch A.B.D, then it translates into
-			# the head A.B .
-			#
-			# This reasoning also applies to the main branch A.B,
-			# with the branch number 0.A, with the exception that
-			# it has no head to translate to if there is nothing on
-			# the branch, but I guess this can never happen?
-			#
-			# (the code below gracefully forgets about the branch
-			# if it should happen)
-			#
-			$head = defined($2) ? $2 : "";
-			$branch = $3;
-			$branchrev = $head . ($head ne "" ? "." : "") . $branch;
-			my $regex;
-			$regex = quotemeta $branchrev;
-			$rev   = $head;
-
-			foreach my $r (@revorder) {
-				if ($r =~ /^${regex}\b/) {
-					$rev = $branchrev;
-					last;
-				}
-			}
-			next if ($rev eq "");
-
-			if ($rev ne $head && $head ne "") {
-				$branchpoint{$head} .= ", "
-				    if ($branchpoint{$head});
-				$branchpoint{$head} .= $_;
-			}
-		}
-		$revsym{$rev} .= ", " if ($revsym{$rev});
-		$revsym{$rev} .= $_;
-		$sel .= "<option value=\"${rev}:${_}\">$_</option>\n";
-	}
-	print "Done associating revisions with branches\n" if ($verbose);
-
-	my ($onlyonbranch, $onlybranchpoint);
-	if ($onlyonbranch = $input{'only_with_tag'}) {
-		$onlyonbranch = $symrev{$onlyonbranch};
-		if ($onlyonbranch =~ s/\b0\.//) {
-			($onlybranchpoint = $onlyonbranch) =~ s/\.\d+$//;
-		} else {
-			$onlybranchpoint = $onlyonbranch;
-		}
-
-		if (!defined($onlyonbranch) || $onlybranchpoint eq "") {
-			fatal("404 Tag not found",
-			      'Tag %s not defined',
-			      $input{'only_with_tag'});
-		}
-	}
-
-	undef @revisions;
-
-	foreach (@allrevisions) {
-		($br  = $_)  =~ s/\.\d+$//;
-		($brp = $br) =~ s/\.\d+$//;
-		next
-		    if ($onlyonbranch && $br ne $onlyonbranch
-		    && $_ ne $onlybranchpoint);
-		unshift (@revisions, $_);
-	}
-
-	if ($logsort eq "date") {
-
-		# Sort the revisions in commit order an secondary sort on revision
-		# (secondary sort needed for imported sources, or the first main
-		# revision gets before the same revision on the 1.1.1 branch)
-		@revdisplayorder =
-		    sort { $date{$b} <=> $date{$a} || -revcmp($a, $b) }
-		    @revisions;
-	} elsif ($logsort eq "rev") {
-
-		# Sort the revisions in revision order, highest first
-		@revdisplayorder = reverse sort { revcmp($a, $b) } @revisions;
-	} else {
-
-		# No sorting. Present in the same order as rlog / cvs log
-		@revdisplayorder = @revisions;
-	}
-
-}
-
-sub printDiffLinks($$) {
-	my ($text, $url) = @_;
-	my @extra;
-
-	local $_;
-	for ($DIFFTYPES{$defaultDiffType}{'colored'} ? qw(u) : qw(h)) {
-		my $f = $_ eq $defaultDiffType ? '' : $_;
-
-		push @extra, &link(lc $DIFFTYPES{$_}{'descr'}, "$url&f=$f");
-	}
-
-	print &link($text, $url), ' (', join (', ', @extra), ')';
-}
-
-sub printLog($;$) {
-	my ($link, $br, $brp);
-	($_, $link) = @_;
-	($br  = $_)  =~ s/\.\d+$//;
-	($brp = $br) =~ s/\.?\d+$//;
-	my ($isDead, $prev);
-
-	$link = 1 if (!defined($link));
-	$isDead = ($state{$_} eq "dead");
-
-	print "<p>\n";
-	if ($link && !$isDead) {
-		my ($filename);
-		($filename = $where) =~ s/^.*\///;
-		my ($fileurl) = urlencode($filename);
-		print "<a name=\"rev$_\"></a>";
-
-		if (defined($revsym{$_})) {
-			foreach my $sym (split (", ", $revsym{$_})) {
-				print "<a name=\"$sym\"></a>";
-			}
-		}
-
-		if (defined($revsym{$br}) && $revsym{$br}
-		    && !defined($nameprinted{$br}))
-		{
-			foreach my $sym (split (", ", $revsym{$br})) {
-				print "<a name=\"$sym\"></a>";
-			}
-			$nameprinted{$br} = 1;
-		}
-		print "\n Revision ";
-		&download_link($fileurl, $_, $_,
-			$defaultViewable ? "text/x-cvsweb-markup" : undef);
-
-		if ($defaultViewable) {
-			print " / (";
-			&download_link($fileurl, $_, "download", $mimetype);
-			print ")";
-		}
-
-		if (not $defaultTextPlain) {
-			print " / (";
-			&download_link($fileurl, $_, "as text", "text/plain");
-			print ")";
-		}
-
-		if (!$defaultViewable) {
-			print " / (";
-			&download_link($fileurl, $_, "view",
-				"text/x-cvsweb-markup");
-			print ")";
-		}
-
-		if ($allow_annotate) {
-			print " - ";
-			print &link(
-				'annotate',
-				sprintf(
-					'%s/%s?annotate=%s%s', $scriptname,
-					urlencode($where),     $_,
-					$barequery
-				)
-			);
-		}
-
-		# Plus a select link if enabled, and this version isn't selected
-		if ($allow_version_select) {
-			if ((!defined($input{"r1"}) || $input{"r1"} ne $_)) {
-				print " - ";
-				print &link(
-					'[select for diffs]',
-					sprintf(
-						'%s?r1=%s%s', $scriptwhere,
-						$_,           $barequery
-					)
-				);
-			} else {
-				print " - <b>[selected]</b>";
-			}
-		}
-	} else {
-		print "Revision <b>$_</b>";
-	}
-
-	if (/^1\.1\.1\.\d+$/) {
-		print " <i>(vendor branch)</i>";
-	}
-	if (defined @mytz) {
-		my ($est) = $mytz[(localtime($date{$_}))[8]];
-		print ", <i>", scalar localtime($date{$_}), " $est</i> (";
-	} else {
-		print ", <i>", scalar gmtime($date{$_}), " UTC</i> (";
-	}
-	print readableTime(time() - $date{$_}, 1), " ago)";
-	print " by ";
-	print "<i>", $author{$_}, "</i>\n";
-	print "<br>Branch: <b>", $link ? link_tags($revsym{$br}) : $revsym{$br},
-	    "</b>\n"
-	    if ($revsym{$br});
-	print "<br>CVS Tags: <b>", $link ? link_tags($revsym{$_}) : $revsym{$_},
-	    "</b>"
-	    if ($revsym{$_});
-	print "<br>Branch point for: <b>",
-	    $link ? link_tags($branchpoint{$_}) : $branchpoint{$_}, "</b>\n"
-	    if ($branchpoint{$_});
-
-	# Find the previous revision
-	my @prevrev = split (/\./, $_);
-	do {
-		if (--$prevrev[$#prevrev] <= 0) {
-
-			# If it was X.Y.Z.1, just make it X.Y
-			pop (@prevrev);
-			pop (@prevrev);
-		}
-		$prev = join (".", @prevrev);
-	} until (defined($date{$prev}) || $prev eq "");
-
-	if ($prev ne "") {
-		if ($difflines{$_}) {
-			print
-			    "<br>Changes since <b>$prev: $difflines{$_} lines</b>";
-		}
-	}
-
-	if ($isDead) {
-		print "<br><b><i>FILE REMOVED</i></b>\n";
-	} elsif ($link) {
-		my %diffrev = ();
-		$diffrev{$_} = 1;
-		$diffrev{""} = 1;
-		print '<br>';
-		my $diff = 'Diff';
-
-		#
-		# Offer diff to previous revision
-		if ($prev) {
-			$diffrev{$prev} = 1;
-
-			my $url =
-			    sprintf('%s.diff?r1=%s&r2=%s%s', $scriptwhere,
-				$prev, $_, $barequery);
-
-			print $diff, " to previous ";
-			$diff = '';
-			printDiffLinks($prev, $url);
-		}
-
-		#
-		# Plus, if it's on a branch, and it's not a vendor branch,
-		# offer a diff with the branch point.
-		if ($revsym{$brp} && !/^1\.1\.1\.\d+$/
-		    && !defined($diffrev{$brp}))
-		{
-			my $url =
-			    sprintf('%s.diff?r1=%s&r2=%s%s', $scriptwhere, $brp,
-				$_, $barequery);
-
-			print $diff, " to branchpoint ";
-			$diff = '';
-			printDiffLinks($brp, $url);
-		}
-
-		#
-		# Plus, if it's on a branch, and it's not a vendor branch,
-		# offer to diff with the next revision of the higher branch.
-		# (e.g. change gets committed and then brought
-		# over to -stable)
-		if (/^\d+\.\d+\.\d+/ && !/^1\.1\.1\.\d+$/) {
-			my ($i, $nextmain);
-
-			for ($i = 0 ; $i < $#revorder && $revorder[$i] ne $_ ;
-			    $i++)
-			{
-			}
-			my @tmp2 = split (/\./, $_);
-			for ($nextmain = "" ; $i > 0 ; $i--) {
-				my $next = $revorder[$i - 1];
-				my @tmp1 = split (/\./, $next);
-
-				if (@tmp1 < @tmp2) {
-					$nextmain = $next;
-					last;
-				}
-
-				# Only the highest version on a branch should have
-				# a diff for the "next main".
-				last
-				    if (@tmp1 - 1 <= @tmp2
-				    && join (".", @tmp1[0 .. $#tmp1 - 1]) eq
-				    join (".", @tmp2[0 .. $#tmp1 - 1]));
-			}
-
-			if (!defined($diffrev{$nextmain})) {
-				$diffrev{$nextmain} = 1;
-
-				my $url =
-				    sprintf('%s.diff?r1=%s&r2=%s%s',
-					$scriptwhere, $nextmain, $_,
-					$barequery);
-
-				print $diff, " next main ";
-				$diff = '';
-				printDiffLinks($nextmain, $url);
-			}
-		}
-
-		# Plus if user has selected only r1, then present a link
-		# to make a diff to that revision
-		if (defined($input{"r1"}) && !defined($diffrev{$input{"r1"}})) {
-			$diffrev{$input{"r1"}} = 1;
-
-			my $url =
-			    sprintf('%s.diff?r1=%s&r2=%s%s', $scriptwhere,
-				$input{'r1'}, $_, $barequery);
-
-			print $diff, " to selected ";
-			$diff = '';
-			printDiffLinks($input{'r1'}, $url);
-		}
-
-	}
-	print "\n</p>\n<pre>\n";
-	print &htmlify($log{$_}, $allow_log_extra);
-	print "</pre>\n";
-}
-
-sub doLog($) {
-	my ($fullname) = @_;
-	my ($diffrev, $upwhere, $filename, $backurl);
-
-	readLog($fullname);
-
-	html_header("CVS log for $where");
-	($upwhere  = $where) =~ s|(Attic/)?[^/]+$||;
-	($filename = $where) =~ s|^.*/||;
-	$backurl = $scriptname . "/" . urlencode($upwhere) . $query;
-	print "<p>\n ";
-	print &link($backicon, "$backurl#$filename"), " <b>Up to ",
-	    &clickablePath($upwhere, 1), "</b>\n</p>\n";
-	print "<p>\n ";
-	print &link('Request diff between arbitrary revisions', '#diff');
-	print "\n</p>\n<hr noshade>\n";
-
-	print "<p>\n";
-	if ($curbranch) {
-		print "Default branch: ", ($revsym{$curbranch} || $curbranch);
-	} else {
-		print "No default branch";
-	}
-	print "<br>\n";
-
-	if ($input{only_with_tag}) {
-		print "Current tag: $input{only_with_tag}<br>\n";
-	}
-	print "</p>\n";
-
-	undef %nameprinted;
-
-	for (my $i = 0 ; $i <= $#revdisplayorder ; $i++) {
-		print "<hr size=\"1\" noshade>\n";
-		printLog($revdisplayorder[$i]);
-	}
-
-	print "<hr noshade>\n<p>\n";
-	print "<a name=\"diff\">\n";
-	print "This form allows you to request diff's between any two\n";
-	print "revisions of a file.  You may select a symbolic revision\n";
-	print "name using the selection box or you may type in a numeric\n";
-	print "name using the type-in text box.\n";
-	print "</a>\n</p>\n";
-	print
-	    "<form method=\"get\" action=\"${scriptwhere}.diff\" name=\"diff_select\">\n";
-
-	foreach (@stickyvars) {
-		printf('<input type="hidden" name="%s" value="%s">', $_,
-		    $input{$_})
-		    if (defined($input{$_})
-		    && ((!defined($DEFAULTVALUE{$_})
-		    || $input{$_} ne $DEFAULTVALUE{$_}) && $input{$_} ne ""));
-	}
-	print "<table style=\"border: none\">\n<tr>\n";
-	print "<td align=\"right\">";
-	print "<label for=\"r1\" accesskey=\"1\">Diffs between </label>\n";
-	print "<select id=\"r1\" name=\"r1\">\n";
-	print "<option value=\"text\" selected>Use Text Field</option>\n";
-	print $sel;
-	print "</select>\n";
-	$diffrev = $revdisplayorder[$#revdisplayorder];
-	$diffrev = $input{"r1"} if (defined($input{"r1"}));
-	print
-	    "<input type=\"text\" size=\"$inputTextSize\" name=\"tr1\" value=\"$diffrev\" onchange=\"this.form.r1.selectedIndex=0\"></td>\n";
-	print "<td><br></td>\n</tr>\n";
-	print "<tr>\n<td align=\"right\">";
-	print "<label for=\"r2\" accesskey=\"2\">and </label>\n";
-	print "<select id=\"r2\" name=\"r2\">\n";
-	print "<option value=\"text\" selected>Use Text Field</option>\n";
-	print $sel;
-	print "</select>\n";
-	$diffrev = $revdisplayorder[0];
-	$diffrev = $input{"r2"} if (defined($input{"r2"}));
-	print
-	    "<input type=\"text\" size=\"$inputTextSize\" name=\"tr2\" value=\"$diffrev\" onchange=\"this.form.r2.selectedIndex=0\"></td>\n";
-	print "<td><input type=\"submit\" value=\"  Get Diffs  \" accesskey=\"G\"></td>\n";
-	print "</tr>\n</table>\n";
-	print "</form>\n";
-	print "<hr noshade>\n";
-	print "<form method=\"get\" action=\"$scriptwhere\">\n";
-	print "<table style=\"border: none\">\n";
-	print "<tr>\n<td align=\"right\">";
-	print "<label for=\"f\" accesskey=\"D\">Preferred Diff type:";
-	print "</label></td>\n";
-	print "<td>";
-	printDiffSelect($use_java_script);
-	print "</td>\n<td></td>\n</tr>\n";
-
-	if (@branchnames) {
-		print "<tr>\n<td align=\"right\">";
-		print "<label for=\"only_with_tag\" accesskey=\"B\">";
-		print "View only Branch:</label></td>\n";
-		print "<td>";
-		print "<a name=\"branch\"></a>\n";
-		print "<select id=\"only_with_tag\" name=\"only_with_tag\"";
-		print " onchange=\"this.form.submit()\"" if $use_java_script;
-		print ">\n";
-		print "<option value=\"\"";
-		print " selected"
-		    if (defined($input{"only_with_tag"})
-		    && $input{"only_with_tag"} eq "");
-		print ">Show all branches</option>\n";
-
-		foreach (reverse sort @branchnames) {
-			print "<option";
-			print " selected"
-			    if (defined($input{"only_with_tag"})
-			    && $input{"only_with_tag"} eq $_);
-			print ">${_}</option>\n";
-		}
-		print "</select></td>\n<td></td>\n</tr>\n";
-	}
-
-	foreach (@stickyvars) {
-		next if ($_ eq "f");
-		next if ($_ eq "only_with_tag");
-		next if ($_ eq "logsort");
-		print "<input type=\"hidden\" name=\"$_\" value=\"$input{$_}\">\n"
-		    if (defined($input{$_})
-		    && (!defined($DEFAULTVALUE{$_})
-		    || $input{$_} ne $DEFAULTVALUE{$_}) && $input{$_} ne "");
-	}
-	print "<tr>\n<td align=\"right\">";
-	print "<a name=\"logsort\"></a>\n";
-	print "<label for=\"logsort\" accesskey=\"L\">Sort log by:";
-	print "</label></td>\n<td>";
-	printLogSortSelect($use_java_script);
-	print "</td>\n";
-	print "<td><input type=\"submit\" value=\"  Set  \" accesskey=\"S\"></td>\n";
-	print "</tr>\n</table>\n";
-	print "</form>\n";
-	html_footer();
-}
-
-sub flush_diff_rows($$$$) {
-	my $j;
-	my ($leftColRef, $rightColRef, $leftRow, $rightRow) = @_;
-
-	if (!defined($state)) {
-		return;
-	}
-
-	if ($state eq "PreChangeRemove") {    # we just got remove-lines before
-		for ($j = 0 ; $j < $leftRow ; $j++) {
-			print
-			    "<tr>\n<td class=\"diff-removed\">&nbsp;@$leftColRef[$j]</td>\n";
-			print
-			    "<td class=\"diff-empty\">&nbsp;</td>\n</tr>\n";
-		}
-	} elsif ($state eq "PreChange") {    # state eq "PreChange"
-		    # we got removes with subsequent adds
-
-		for ($j = 0 ; $j < $leftRow || $j < $rightRow ; $j++)
-		{    # dump out both cols
-			print "<tr>\n";
-			if ($j < $leftRow) {
-				print
-				    "<td class=\"diff-changed\">&nbsp;@$leftColRef[$j]</td>";
-			} else {
-				print
-				    "<td class=\"diff-changed-missing\">&nbsp;</td>";
-			}
-			print "\n";
-
-			if ($j < $rightRow) {
-				print
-				    "<td class=\"diff-changed\">&nbsp;@$rightColRef[$j]</td>";
-			} else {
-				print
-				    "<td class=\"diff-changed-missing\">&nbsp;</td>";
-			}
-			print "\n</tr>\n";
-		}
-	}
-}
-
-##
-# Function to generate Human readable diff-files
-# human_readable_diff(String revision_to_return_to);
-##
-sub human_readable_diff($) {
-	my ($difftxt, $where_nd, $filename, $pathname, $scriptwhere_nd);
-	my ($fh, $rev) = @_;
-	my ($date1, $date2, $r1d, $r2d, $r1r, $r2r, $rev1, $rev2, $sym1, $sym2);
-	my (@rightCol, @leftCol);
-
-	($where_nd       = $where)       =~ s/.diff$//;
-	($filename       = $where_nd)    =~ s/^.*\///;
-	($pathname       = $where_nd)    =~ s/(Attic\/)?[^\/]*$//;
-	($scriptwhere_nd = $scriptwhere) =~ s/.diff$//;
-
-	navigateHeader($scriptwhere_nd, $pathname, $filename, $rev, "diff");
-
-	# Read header to pick up read revision and date, if possible
-	while (<$fh>) {
-		($r1d, $r1r) = /\t(.*)\t(.*)$/ if (/^--- /);
-		($r2d, $r2r) = /\t(.*)\t(.*)$/ if (/^\+\+\+ /);
-		last if (/^\+\+\+ /);
-	}
-
-	if (defined($r1r) && $r1r =~ /^(\d+\.)+\d+$/) {
-		$rev1  = $r1r;
-		$date1 = $r1d;
-	}
-	if (defined($r2r) && $r2r =~ /^(\d+\.)+\d+$/) {
-		$rev2  = $r2r;
-		$date2 = $r2d;
-	}
-
-	print
-	    "<h3 style=\"text-align: center\">Diff for /$where_nd between version $rev1 and $rev2</h3>\n",
-	    # Using style=\"border: none\" here breaks NS 4.x badly...
-	    "<table border=\"0\" cellspacing=\"0\" cellpadding=\"0\" width=\"100%\">\n",
-	    "<tr style=\"background-color: #ffffff\">\n", "<th width=\"50%\" valign=\"top\">",
-	    "version $rev1";
-	print ", $date1"         if (defined($date1));
-	print "<br>Tag: $sym1\n" if ($sym1);
-	print "</th>\n", "<th width=\"50%\" valign=\"top\">", "version $rev2";
-	print ", $date2"         if (defined($date2));
-	print "<br>Tag: $sym2\n" if ($sym1);
-	print "</th>\n";
-
-	my $leftRow  = 0;
-	my $rightRow = 0;
-	my ($oldline, $newline, $funname, $diffcode, $rest);
-
-	# Process diff text
-
-	# prefetch several lines
-	my @buf = head($fh);
-
-	my %d = scan_directives(@buf);
-
-	while (@buf || !eof($fh)) {
-		$difftxt = @buf ? shift @buf : <$fh>;
-
-		if ($difftxt =~ /^@@/) {
-			($oldline, $newline, $funname) =
-			    $difftxt =~ /@@ \-([0-9]+).*\+([0-9]+).*@@(.*)/;
-			$funname = htmlquote($funname);
-			$funname =~ s/\s/&nbsp;/go;
-			print
-			    "<tr class=\"diff-heading\">\n<td width=\"50%\">";
-			print
-			    "<table width=\"100%\" border=\"1\" cellpadding=\"5\">\n<tr>\n<td><b>Line&nbsp;$oldline</b>";
-			print
-			    "&nbsp;<span style=\"font-size: smaller\">$funname</span></td>\n</tr>\n</table>";
-			print "</td>\n<td width=\"50%\">";
-			print
-			    "<table width=\"100%\" border=\"1\" cellpadding=\"5\">\n<tr>\n<td><b>Line&nbsp;$newline</b>";
-			print
-			    "&nbsp;<span style=\"font-size: smaller\">$funname</span></td>\n</tr>\n</table>\n";
-			print "</td>\n";
-			$state    = "dump";
-			$leftRow  = 0;
-			$rightRow = 0;
-		} else {
-			($diffcode, $rest) = $difftxt =~ /^([-+ ])(.*)/;
-			$_ = spacedHtmlText($rest, $d{'tabstop'});
-
-			#########
-			# little state machine to parse unified-diff output (Hen, zeller@think.de)
-			# in order to get some nice 'ediff'-mode output
-			# states:
-			#  "dump"             - just dump the value
-			#  "PreChangeRemove"  - we began with '-' .. so this could be the start of a 'change' area or just remove
-			#  "PreChange"        - okey, we got several '-' lines and moved to '+' lines -> this is a change block
-			##########
-
-			if ($diffcode eq '+') {
-				if ($state eq "dump")
-				{ # 'change' never begins with '+': just dump out value
-					print
-					    "<tr>\n<td class=\"diff-empty\">&nbsp;</td>\n<td class=\"diff-added\">&nbsp;$_</td>\n</tr>\n";
-				} else {    # we got minus before
-					$state = "PreChange";
-					$rightCol[$rightRow++] = $_;
-				}
-			} elsif ($diffcode eq '-') {
-				$state = "PreChangeRemove";
-				$leftCol[$leftRow++] = $_;
-			} else {    # empty diffcode
-				flush_diff_rows \@leftCol, \@rightCol, $leftRow,
-				    $rightRow;
-				print "<tr>\n<td class=\"diff-same\">&nbsp;$_</td>\n<td class=\"diff-same\">&nbsp;$_</td>\n</tr>\n";
-				$state    = "dump";
-				$leftRow  = 0;
-				$rightRow = 0;
-			}
-		}
-	}
-	close($fh);
-
-	flush_diff_rows \@leftCol, \@rightCol, $leftRow, $rightRow;
-
-	# state is empty if we didn't have any change
-	if (!$state) {
-		print "<tr>\n<td colspan=\"2\">&nbsp;</td>\n</tr>\n";
-		print "<tr class=\"diff-empty\">\n";
-		print
-		    "<td colspan=\"2\" align=\"center\"><b>- No viewable change -</b></td>\n</tr>\n";
-	}
-	print "</table>\n";
-
-	print "<hr style=\"width: 100%\" noshade>\n";
-	print "<form method=\"get\" action=\"${scriptwhere}\">\n";
-	print "<table style=\"border: none\">\n<tr>\n<td>\n";
-
-	# print legend
-	print "<table border=\"1\">\n<tr>\n<td>";
-	print "Legend:<br><table style=\"border: none\" cellspacing=\"0\" cellpadding=\"1\">\n";
-	print
-	    "<tr>\n<td align=\"center\" class=\"diff-removed\">Removed from v.$rev1</td>\n<td class=\"diff-empty\">&nbsp;</td>\n</tr>\n";
-	print
-	    "<tr class=\"diff-changed\">\n<td align=\"center\" colspan=\"2\">changed lines</td>\n</tr>\n";
-	print
-	    "<tr>\n<td class=\"diff-empty\">&nbsp;</td>\n<td align=\"center\" class=\"diff-added\">Added in v.$rev2</td>\n</tr>\n";
-	print "</table>\n</td>\n</tr>\n</table>\n</td>\n<td>";
-
-	# Print format selector
-	foreach my $var (keys %input) {
-		next if ($var eq "f");
-		next
-		    if (defined($DEFAULTVALUE{$var})
-		    && $DEFAULTVALUE{$var} eq $input{$var});
-		print "<input type=\"hidden\" name=\"", urlencode($var),
-		    "\" value=\"", urlencode($input{$var}), "\">\n";
-	}
-	printDiffSelect($use_java_script);
-	print "<input type=\"submit\" value=\"Show\">\n";
-	print "</td>\n";
-
-	print "</tr>\n</table>\n";
-	print "</form>\n";
-}
-
-sub navigateHeader($$$$$) {
-	my ($swhere, $path, $filename, $rev, $title) = @_;
-	$swhere = "" if ($swhere eq $scriptwhere);
-	$swhere = './' . urlencode($filename) if ($swhere eq "");
-
-	# TODO: this should be moved into external CSS file.
-	my $css = '';
-	if ($title eq 'diff') {
-	    $css = "
-<style type=\"text/css\">
-.diff-heading {
-  background-color: $diffcolorHeading;
-}
-.diff-same {
-  font-family: $difffontface;
-  font-size: smaller;
-}
-.diff-empty {
-  background-color: $diffcolorEmpty;
-}
-.diff-added {
-  background-color: $diffcolorAdd;
-  font-family: $difffontface;
-  font-size: smaller;
-}
-.diff-removed {
-  background-color: $diffcolorRemove;
-  font-family: $difffontface;
-  font-size: smaller;
-}
-.diff-changed {
-  background-color: $diffcolorChange;
-  font-family: $difffontface;
-  font-size: smaller;
-}
-.diff-changed-missing {
-  background-color: $diffcolorDarkChange;
-}
-</style>";
-	}
-
-	print <<EOF;
-$HTML_DOCTYPE
-<html>
-<head>
-<title>$path$filename - $title - $rev</title>$css
-$HTML_META</head>
-$body_tag_for_src
-<table width="100%" style="border: none; background-color: $navigationHeaderColor" cellspacing="0" cellpadding="1">
-<tr valign="bottom"><td>
-EOF
-
-	print &link($backicon, "$swhere$query#rev$rev");
-	print "<b>Return to ", &link($filename, "$swhere$query#rev$rev"),
-	    " CVS log";
-	print "</b> $fileicon</td>";
-
-	print "<td align=\"right\">$diricon <b>Up to ",
-	  &clickablePath($path, 1),
-	    "</b></td>";
-	print "</tr></table>";
-}
-
-sub plural_write($$) {
-	my ($num, $text) = @_;
-	if ($num != 1) {
-		$text .= "s";
-	}
-
-	if ($num > 0) {
-		return join (' ', $num, $text);
-	} else {
-		return "";
-	}
-}
-
-##
-# print readable timestamp in terms of
-# '..time ago'
-# H. Zeller <zeller@think.de>
-##
-sub readableTime($$) {
-	my ($i, $break, $retval);
-	my ($secs, $long) = @_;
-
-	# this function works correct for time >= 2 seconds
-	if ($secs < 2) {
-		return "very little time";
-	}
-
-	my %desc = (
-		1,        'second', 60,     'minute', 3600,    'hour',
-		86400,    'day',    604800, 'week',   2628000, 'month',
-		31536000, 'year'
-	);
-	my @breaks = sort { $a <=> $b } keys %desc;
-	$i = 0;
-
-	while ($i <= $#breaks && $secs >= 2 * $breaks[$i]) {
-		$i++;
-	}
-	$i--;
-	$break  = $breaks[$i];
-	$retval = plural_write(int($secs / $break), $desc{$break});
-
-	if ($long == 1 && $i > 0) {
-		my $rest = $secs % $break;
-		$i--;
-		$break = $breaks[$i];
-		my $resttime = plural_write(int($rest / $break), $desc{$break});
-		if ($resttime) {
-			$retval .= ", $resttime";
-		}
-	}
-
-	return $retval;
-}
-
-##
-# clickablePath(String pathname, boolean last_item_clickable)
+# XXX should this just be text/plain
+# or should it have an HTML header and then a <pre>
+	print "Content-type: text/plain\n\n";
+	open(RCSDIFF, "rcsdiff $difftype -r$rev1 -r$rev2 '$fullname' 2>&1 |") ||
+	    &fail("500 Internal Error", "Couldn't rcsdiff: $!");
 #
-# returns a html-ified path whereas each directory is a link for
-# faster navigation. last_item_clickable controls whether the
-# basename (last directory/file) is a link as well
-##
-sub clickablePath($$) {
-	my ($pathname, $clickLast) = @_;
-	my $retval = '';
-
-	if ($pathname eq '/') {
-
-		# this should never happen - chooseCVSRoot() is
-		# intended to do this
-		$retval = "[$cvstree]";
+#===================================================================
+#RCS file: /home/ncvs/src/sys/netinet/tcp_output.c,v
+#retrieving revision 1.16
+#retrieving revision 1.17
+#diff -c -r1.16 -r1.17
+#*** /home/ncvs/src/sys/netinet/tcp_output.c     1995/11/03 22:08:08     1.16
+#--- /home/ncvs/src/sys/netinet/tcp_output.c     1995/12/05 17:46:35     1.17
+#
+# Ideas:
+# - nuke the stderr output if it's what we expect it to be
+# - Add "no differences found" if the diff command supplied no output.
+#
+#*** src/sys/netinet/tcp_output.c     1995/11/03 22:08:08     1.16
+#--- src/sys/netinet/tcp_output.c     1995/12/05 17:46:35     1.17 RELENG_2_1_0
+# (bogus example, but...)
+#
+	if ($difftype eq '-u') {
+	    $f1 = '---';
+	    $f2 = '\+\+\+';
 	} else {
-		$retval .= ' ' . &link("[$cvstree]",
-			sprintf('%s/%s#dirlist', $scriptname, $query));
-		my $wherepath = '';
-		my ($lastslash) = $pathname =~ m|/$|;
-
-		foreach (split (/\//, $pathname)) {
-			$retval .= " / ";
-			$wherepath .= "/$_";
-			my ($last) = "$wherepath/" eq "/$pathname"
-			    || $wherepath eq "/$pathname";
-
-			if ($clickLast || !$last) {
-				$retval .= &link($_,
-					join ('', $scriptname,
-					urlencode($wherepath),
-					(!$last || $lastslash ? '/' : ''),
-					$query,
-					(!$last || $lastslash ? "#dirlist" : "")
-				));
-			} else {    # do not make a link to the current dir
-				$retval .= $_;
-			}
-		}
+	    $f1 = '\*\*\*';
+	    $f2 = '---';
 	}
-	return $retval;
-}
-
-sub chooseCVSRoot() {
-
-	print "<form method=\"get\" action=\"${scriptwhere}\">\n";
-	if (2 <= @CVSROOT) {
-		my ($k);
-		foreach $k (keys %input) {
-			print "<input type=\"hidden\" name=\"$k\" value=\"$input{$k}\">\n"
-			    if ($input{$k}) && ($k ne "cvsroot");
+	while (<RCSDIFF>) {
+	    if (m|^$f1 $cvsroot|o) {
+		s|$cvsroot/||o;
+		if ($sym1) {
+		    chop;
+		    $_ .= " " . $sym1 . "\n";
 		}
-
-		# Form-Elements look wierd in Netscape if the background
-		# isn't gray and the form elements are not placed
-		# within a table ...
-		print "<table style=\"border: none\">\n<tr>\n";
-		print "<td><label for=\"cvsroot\" accesskey=\"C\">CVS Root:</label></td>\n";
-		print "<td>\n<select id=\"cvsroot\" name=\"cvsroot\"";
-		print " onchange=\"this.form.submit()\"" if $use_java_script;
-		print ">\n";
-
-		foreach $k (@CVSROOT) {
-			print "<option value=\"$k\"";
-			print " selected" if ($k eq $cvstree);
-			print ">",($CVSROOTdescr{$k} ? $CVSROOTdescr{$k} : $k),
-			    "</option>\n";
+	    } elsif (m|^$f2 $cvsroot|o) {
+		s|$cvsroot/||o;
+		if ($sym2) {
+		    chop;
+		    $_ .= " " . $sym2 . "\n";
 		}
-		print "</select>\n</td>\n<td>";
-	} else {
-
-		# no choice -- but we need the form to select module/path,
-		# at least for Netscape
-		print "<p>\n";
-		print "CVS Root: <b>[$cvstree]</b>";
+	    }
+	    print $_;
 	}
-
-	print " <label for=\"path\" accesskey=\"P\">Module path or alias:";
-	print "</label>\n";
-	print "<input type=\"text\" id=\"path\" name=\"path\" value=\"\" size=\"15\">\n";
-	print "<input type=\"submit\" value=\"Go\" accesskey=\"G\">";
-
-	if (2 <= @CVSROOT) {
-		print "</td>\n</tr>\n</table>";
-	} else {
-		print "</p>";
-	}
-	print "\n</form>";
-}
-
-sub chooseMirror() {
-	my ($mirror, $moremirrors);
-	$moremirrors = 0;
-
-	# This code comes from the original BSD-cvsweb
-	# and may not be useful for your site; If you don't
-	# set %MIRRORS this won't show up, anyway
-	#
-	# Should perhaps exlude the current site somehow..
-	if (keys %MIRRORS) {
-		print "\nThis CVSweb is mirrored in:\n";
-
-		foreach $mirror (keys %MIRRORS) {
-			print ", " if ($moremirrors);
-			print &link(htmlquote($mirror), $MIRRORS{$mirror});
-			$moremirrors = 1;
-		}
-		print "<p>\n";
-	}
-}
-
-sub fileSortCmp() {
-	my ($comp) = 0;
-	my ($c, $d, $af, $bf);
-
-	($af = $a) =~ s/,v$//;
-	($bf = $b) =~ s/,v$//;
-	my ($rev1, $date1, $log1, $author1, $filename1) = @{$fileinfo{$af}}
-	    if (defined($fileinfo{$af}));
-	my ($rev2, $date2, $log2, $author2, $filename2) = @{$fileinfo{$bf}}
-	    if (defined($fileinfo{$bf}));
-
-	if (defined($filename1) && defined($filename2) && $af eq $filename1
-	    && $bf eq $filename2)
-	{
-
-		# Two files
-		$comp = -revcmp($rev1, $rev2) if ($byrev && $rev1 && $rev2);
-		$comp = ($date2 <=> $date1) if ($bydate && $date1 && $date2);
-		$comp = ($log1 cmp $log2) if ($bylog && $log1 && $log2);
-		$comp = ($author1 cmp $author2)
-		    if ($byauthor && $author1 && $author2);
-	}
-
-	if ($comp == 0) {
-
-		# Directories first, then sorted on name if no other sort critera
-		# available.
-		my $ad = ((-d "$fullname/$a") ? "D" : "F");
-		my $bd = ((-d "$fullname/$b") ? "D" : "F");
-		($c = $a) =~ s|.*/||;
-		($d = $b) =~ s|.*/||;
-		$comp = ("$ad$c" cmp "$bd$d");
-	}
-	return $comp;
-}
-
-# make A url for downloading
-sub download_url($$;$) {
-	my ($url, $revision, $mimetype) = @_;
-
-	$revision =~ s/\b0\.//;
-
-	if (defined($checkoutMagic)
-	    && (!defined($mimetype) || $mimetype ne "text/x-cvsweb-markup"))
-	{
-		my $path = $where;
-		$path =~ s|[^/]+$||;
-		$url = "$scriptname/$checkoutMagic/${path}$url";
-	}
-	$url .= "?rev=$revision";
-	$url .= '&content-type=' . urlencode($mimetype) if (defined($mimetype));
-
-	$url;
-}
-
-# Presents a link to download the
-# selected revision
-sub download_link($$$;$) {
-	my ($url, $revision, $textlink, $mimetype) = @_;
-	my ($fullurl) = download_url($url, $revision, $mimetype);
-
-	$fullurl =~ s/:/sprintf("%%%02x", ord($&))/eg;
-
-	printf '<a href="%s"', hrefquote("$fullurl$barequery");
-
-	if ($open_extern_window
-	    && (!defined($mimetype) || $mimetype ne "text/x-cvsweb-markup"))
-	{
-		print ' target="cvs_checkout"';
-
-		# we should have
-		#   'if (document.cvswin==null) document.cvswin=window.open(...'
-		# in order to allow the user to resize the window; otherwise
-		# the user may resize the window, but on next checkout - zap -
-		# its original (configured s. cvsweb.conf) size is back again
-		# .. annoying (if $extern_window_(width|height) is defined)
-		# but this if (..) solution is far from perfect
-		# what we need to do as well is
-		# 1) save cvswin in an invisible frame that always exists
-		#    (document.cvswin will be void on next load)
-		# 2) on close of the cvs_checkout - window set the cvswin
-		#    variable to 'null' again - so that it will be
-		#    reopenend with the configured size
-		# anyone a JavaScript programmer ?
-		# .. so here without if (..):
-		# currently, the best way is to comment out the size parameters
-		# ($extern_window...) in cvsweb.conf.
-		if ($use_java_script) {
-			my @attr = qw(resizeable scrollbars);
-
-			push @attr, qw(status toolbar)
-			    if (defined($mimetype) && $mimetype eq "text/html");
-
-			push @attr, "width=$extern_window_width"
-			    if (defined($extern_window_width));
-
-			push @attr, "height=$extern_window_height"
-			    if (defined($extern_window_height));
-
-			# We need the "return false" here to prevent browsers
-			# from following the href after the onclick handler.
-			# This would effectively load the same document in
-			# the same window *twice*.
-			printf
-			    q` onclick="window.open('%s','cvs_checkout','%s');return false"`,
-			    hrefquote($fullurl), join (',', @attr);
-		}
-	}
-	print "><b>$textlink</b></a>";
-}
-
-# Returns a Query string with the
-# specified parameter toggled
-sub toggleQuery($$) {
-	my ($toggle, $value) = @_;
-	my ($newquery, $var);
-	my (%vars);
-	%vars = %input;
-
-	if (defined($value)) {
-		$vars{$toggle} = $value;
-	} else {
-		$vars{$toggle} = $vars{$toggle} ? 0 : 1;
-	}
-
-	# Build a new query of non-default paramenters
-	$newquery = "";
-	foreach $var (@stickyvars) {
-		my ($value) = defined($vars{$var}) ? $vars{$var} : "";
-		my ($default) =
-		    defined($DEFAULTVALUE{$var}) ? $DEFAULTVALUE{$var} : "";
-
-		if ($value ne $default) {
-			$newquery .= "&" if ($newquery ne "");
-			$newquery .= urlencode($var) . "=" . urlencode($value);
-		}
-	}
-
-	if ($newquery) {
-		return '?' . $newquery;
-	}
-	return "";
-}
-
-sub urlencode($) {
-	local ($_) = @_;
-
-	s/[\000-+{-\377]/sprintf("%%%02x", ord($&))/ge;
-
-	$_;
-}
-
-sub htmlquote($) {
-	local ($_) = @_;
-
-	# Special Characters; RFC 1866
-	s/&/&amp;/g;
-	s/\"/&quot;/g;
-	s/</&lt;/g;
-	s/>/&gt;/g;
-
-	$_;
-}
-
-sub htmlunquote($) {
-	local ($_) = @_;
-
-	# Special Characters; RFC 1866
-	s/&quot;/\"/g;
-	s/&lt;/</g;
-	s/&gt;/>/g;
-	s/&amp;/&/g;
-
-	$_;
-}
-
-sub hrefquote($) {
-	local ($_) = @_;
-
-	y/ /+/;
-
-	htmlquote($_)
-}
-
-sub http_header(;$) {
-	my $content_type = shift || "text/html";
-
-	$content_type .= "; charset=$charset"
-	    if $content_type =~ m,^text/, && defined($charset) && $charset;
-
-	if (defined($moddate)) {
-		if ($is_mod_perl) {
-			Apache->request->header_out(
-				"Last-Modified" => scalar gmtime($moddate)
-				. " GMT");
-		} else {
-			print "Last-Modified: ", scalar gmtime($moddate),
-			    " GMT\r\n";
-		}
-	}
-
-	if ($is_mod_perl) {
-		Apache->request->content_type($content_type);
-	} else {
-		print "Content-Type: $content_type\r\n";
-	}
-
-	if ($allow_compress && $maycompress) {
-		if ($has_zlib
-		    || (defined($CMD{gzip}) && open(GZIP, "| $CMD{gzip} -1 -c"))
-		    )
-		{
-
-			if ($is_mod_perl) {
-				Apache->request->content_encoding("x-gzip");
-				Apache->request->header_out(
-					Vary => "Accept-Encoding");
-				Apache->request->send_http_header;
-			} else {
-				print "Content-Encoding: x-gzip\r\n";
-				print "Vary: Accept-Encoding\r\n"
-				    ;            #RFC 2068, 14.43
-				print "\r\n";    # Close headers
-			}
-			$| = 1;
-			$| = 0;    # Flush header output
-
-			if ($has_zlib) {
-				tie *GZIP, __PACKAGE__, \*STDOUT;
-			}
-			select(GZIP);
-			$gzip_open = 1;
-
-			#	    print "<!-- gzipped -->" if ($content_type =~ m|^text/html\b|);
-		} else {
-			if ($is_mod_perl) {
-				Apache->request->send_http_header;
-			} else {
-				print "\r\n";    # Close headers
-			}
-			print
-			    "<span style=\"font-size: smaller\">Unable to find gzip binary in the <b>\$command_path</b> ($command_path) to compress output</span><br>";
-		}
-	} else {
-
-		if ($is_mod_perl) {
-			Apache->request->send_http_header;
-		} else {
-			print "\r\n";    # Close headers
-		}
-	}
-}
-
-sub html_header($) {
-	my ($title) = @_;
-	http_header("text/html");
-	print <<EOH;
-$HTML_DOCTYPE
-<html>
-<head>
-<title>$title</title>
-$HTML_META</head>
-$body_tag
-$logo <h1 align="center">$title</h1>
-EOH
-}
-
-sub html_footer() {
-	print "<hr noshade>\n<address>$address</address>\n</body>\n</html>\n";
-}
-
-sub link_tags($) {
-	my ($tags) = @_;
-	my ($ret)  = "";
-	my ($fileurl, $filename);
-
-	($filename = $where) =~ s/^.*\///;
-	$fileurl = './' . urlencode($filename);
-
-	foreach my $sym (split (", ", $tags)) {
-		$ret .= ",\n" if ($ret ne "");
-		$ret .=
-		    &link($sym, $fileurl . toggleQuery('only_with_tag', $sym));
-	}
-	return "$ret\n";
-}
-
-#
-# See if a module is listed in the config file's @HideModules list.
-#
-sub forbidden_module($) {
-	my ($module) = @_;
-	local $_;
-
-	for (@HideModules) {
-		return 1 if $module =~ $_;
-	}
-	return 0;
-}
-
-sub forbidden_file($) {
-	my ($path) = @_;
-	$path =  substr($path, length($cvsroot) + 1);
-	local $_;
-	for (@ForbiddenFiles) {
-		return 1 if $path =~ $_;
-	}
-	return 0;
-}
-
-# Close the GZIP handle remove the tie.
-
-sub gzipclose {
-	if ($gzip_open) {
-		select(STDOUT);
-		close(GZIP);
-		untie *GZIP;
-		$gzip_open = 0;
-	}
-}
-
-# implement a gzipped file handle via the Compress:Zlib compression
-# library.
-
-sub MAGIC1() { 0x1f }
-sub MAGIC2() { 0x8b }
-sub OSCODE() { 3 }
-
-sub TIEHANDLE {
-	my ($class, $out) = @_;
-	my ($d) = Compress::Zlib::deflateInit(
-		-Level      => Compress::Zlib::Z_BEST_COMPRESSION(),
-		-WindowBits => -Compress::Zlib::MAX_WBITS()
-	) or return undef;
-	my ($o) = {
-		handle => $out,
-		dh     => $d,
-		crc    => 0,
-		len    => 0,
-	};
-	my ($header) =
-	    pack("c10", MAGIC1, MAGIC2, Compress::Zlib::Z_DEFLATED(), 0, 0, 0,
-	    0, 0, 0, OSCODE);
-	print {$o->{handle}} $header;
-	return bless($o, $class);
-}
-
-sub PRINT {
-	my ($o)   = shift;
-	my ($buf) = join (defined $, ? $, : "", @_);
-	my ($len) = length($buf);
-	my ($compressed, $status) = $o->{dh}->deflate($buf);
-	print {$o->{handle}} $compressed if defined($compressed);
-	$o->{crc} = Compress::Zlib::crc32($buf, $o->{crc});
-	$o->{len} += $len;
-	return $len;
-}
-
-sub PRINTF {
-	my ($o)   = shift;
-	my ($fmt) = shift;
-	my ($buf) = sprintf($fmt, @_);
-	my ($len) = length($buf);
-	my ($compressed, $status) = $o->{dh}->deflate($buf);
-	print {$o->{handle}} $compressed if defined($compressed);
-	$o->{crc} = Compress::Zlib::crc32($buf, $o->{crc});
-	$o->{len} += $len;
-	return $len;
-}
-
-sub WRITE {
-	my ($o, $buf, $len, $off) = @_;
-	my ($compressed, $status) = $o->{dh}->deflate(substr($buf, 0, $len));
-	print {$o->{handle}} $compressed if defined($compressed);
-	$o->{crc} = Compress::Zlib::crc32(substr($buf, 0, $len), $o->{crc});
-	$o->{len} += $len;
-	return $len;
-}
-
-sub CLOSE {
-	my ($o) = @_;
-	return if !defined($o->{dh});
-	my ($buf) = $o->{dh}->flush();
-	$buf .= pack("V V", $o->{crc}, $o->{len});
-	print {$o->{handle}} $buf;
-	undef $o->{dh};
-}
-
-sub DESTROY {
-	my ($o) = @_;
-	CLOSE($o);
+	close(RCSDIFF);
 }