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Annotation of cvsweb/cvsweb.cgi, Revision 3.34

3.10      knu         1: #!/usr/bin/perl5 -ws
1.1       jfieber     2: #
3.1       knu         3: # cvsweb - a CGI interface to CVS trees.
1.1       jfieber     4: #
3.12      knu         5: # Written in their spare time by
3.1       knu         6: #             Bill Fenner      <fenner@FreeBSD.org>   (original work)
                      7: # extended by Henner Zeller    <zeller@think.de>,
3.12      knu         8: #             Henrik Nordstrom <hno@hem.passagen.se>
3.1       knu         9: #             Ken Coar         <coar@Apache.Org>
                     10: #             Dick Balaska     <dick@buckosoft.com>
                     11: #             Akinori MUSHA    <knu@FreeBSD.org>
3.23      knu        12: #             Jens-Uwe Mager   <jum@helios.de>
3.1       knu        13: #
                     14: # Based on:
                     15: # * Bill Fenners cvsweb.cgi revision 1.28 available from:
3.5       knu        16: #   http://www.FreeBSD.org/cgi/cvsweb.cgi/www/en/cgi/cvsweb.cgi
1.1       jfieber    17: #
1.21      wosch      18: # Copyright (c) 1996-1998 Bill Fenner
3.1       knu        19: #           (c) 1998-1999 Henner Zeller
                     20: #          (c) 1999      Henrik Nordstrom
                     21: #          (c) 2000      Akinori MUSHA
1.21      wosch      22: # All rights reserved.
                     23: #
                     24: # Redistribution and use in source and binary forms, with or without
                     25: # modification, are permitted provided that the following conditions
                     26: # are met:
                     27: # 1. Redistributions of source code must retain the above copyright
                     28: #    notice, this list of conditions and the following disclaimer.
                     29: # 2. Redistributions in binary form must reproduce the above copyright
                     30: #    notice, this list of conditions and the following disclaimer in the
                     31: #    documentation and/or other materials provided with the distribution.
                     32: #
                     33: # THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
                     34: # ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
                     35: # IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
                     36: # ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
                     37: # FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
                     38: # DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
                     39: # OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
                     40: # HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
                     41: # LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
                     42: # OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
                     43: # SUCH DAMAGE.
                     44: #
3.25      knu        45: # $zId: cvsweb.cgi,v 1.103 2000/09/20 17:02:29 jumager Exp $
3.34    ! knu        46: # $Id: cvsweb.cgi,v 3.33 2000/10/07 07:44:12 knu Exp $
1.21      wosch      47: #
3.1       knu        48: ###
                     49:
                     50: use strict;
1.21      wosch      51:
3.1       knu        52: use vars qw (
                     53:     $config $allow_version_select $verbose
                     54:     %CVSROOT %CVSROOTdescr %MIRRORS %DEFAULTVALUE %ICONS %MTYPES
                     55:     %alltags @tabcolors %fileinfo %tags @branchnames %nameprinted
                     56:     %symrev %revsym @allrevisions %date %author @revdisplayorder
3.17      knu        57:     @revisions %state %difflines %log %branchpoint @revorder
                     58:     $prcgi @prcategories $prcategories $mancgi
3.1       knu        59:     $checkoutMagic $doCheckout $scriptname $scriptwhere
3.3       knu        60:     $where $pathinfo $Browser $nofilelinks $maycompress @stickyvars
                     61:     %funcline_regexp $is_mod_perl
3.34    ! knu        62:     $is_links $is_lynx $is_w3m $is_msie $is_mozilla3 $is_textbased
3.1       knu        63:     %input $query $barequery $sortby $bydate $byrev $byauthor
                     64:     $bylog $byfile $hr_default $logsort $cvstree $cvsroot
                     65:     $mimetype $defaultTextPlain $defaultViewable $allow_compress
                     66:     $GZIPBIN $backicon $diricon $fileicon $fullname $newname
3.26      knu        67:     $cvstreedefault $body_tag $body_tag_for_src
                     68:     $logo $defaulttitle $address
                     69:     $long_intro $short_instruction $shortLogLen
3.1       knu        70:     $show_author $dirtable $tablepadding $columnHeaderColorDefault
3.3       knu        71:     $columnHeaderColorSorted $hr_breakable $showfunc $hr_ignwhite
3.1       knu        72:     $hr_ignkeysubst $diffcolorHeading $diffcolorEmpty $diffcolorRemove
                     73:     $diffcolorChange $diffcolorAdd $diffcolorDarkChange $difffontface
                     74:     $difffontsize $inputTextSize $mime_types $allow_annotate
                     75:     $allow_markup $use_java_script $open_extern_window
                     76:     $extern_window_width $extern_window_height $edit_option_form
                     77:     $checkout_magic $show_subdir_lastmod $show_log_in_markup $v
                     78:     $navigationHeaderColor $tableBorderColor $markupLogColor
                     79:     $tabstop $state $annTable $sel $curbranch @HideModules
                     80:     $module $use_descriptions %descriptions @mytz $dwhere $moddate
3.23      knu        81:     $use_moddate $has_zlib $gzip_open
3.32      knu        82:     $LOG_FILESEPARATOR $LOG_REVSEPARATOR
3.1       knu        83: );
                     84:
3.12      knu        85: sub printDiffSelect($);
                     86: sub findLastModifiedSubdirs(@);
                     87: sub htmlify($;$);
3.20      knu        88: sub spacedHtmlText($;$);
3.12      knu        89: sub link($$);
                     90: sub revcmp($$);
                     91: sub fatal($$);
                     92: sub redirect($);
                     93: sub safeglob($);
                     94: sub getMimeTypeFromSuffix($);
3.24      knu        95: sub head($;$);
                     96: sub scan_directives(@);
3.12      knu        97: sub doAnnotate($$);
                     98: sub doCheckout($$);
                     99: sub cvswebMarkup($$$);
                    100: sub viewable($);
                    101: sub doDiff($$$$$$);
                    102: sub getDirLogs($$@);
                    103: sub readLog($;$);
                    104: sub printLog($;$);
                    105: sub doLog($);
                    106: sub flush_diff_rows($$$$);
                    107: sub human_readable_diff($);
                    108: sub navigateHeader($$$$$);
                    109: sub plural_write($$);
                    110: sub readableTime($$);
                    111: sub clickablePath($$);
                    112: sub chooseCVSRoot();
                    113: sub chooseMirror();
                    114: sub fileSortCmp();
                    115: sub download_url($$;$);
                    116: sub download_link($$$;$);
                    117: sub toggleQuery($$);
                    118: sub urlencode($);
                    119: sub http_header(;$);
                    120: sub html_header($);
                    121: sub html_footer();
                    122: sub link_tags($);
                    123: sub forbidden_module($);
                    124:
3.1       knu       125: ##### Start of Configuration Area ########
3.11      knu       126: use Cwd;
                    127:
3.12      knu       128: # == EDIT this ==
3.28      knu       129: # Locations to search for user configuration, in order:
                    130: for (
                    131:      $ENV{CVSWEB_CONFIG},
3.13      knu       132:      '/usr/local/etc/cvsweb.conf',
3.28      knu       133:      getcwd() . '/cvsweb.conf'
                    134:     ) {
                    135:     $config = $_ if defined($_) && -r $_;
3.11      knu       136: }
3.1       knu       137:
                    138: # == Configuration defaults ==
                    139: # Defaults for configuration variables that shouldn't need
                    140: # to be configured..
                    141: $allow_version_select = 1;
                    142:
                    143: ##### End of Configuration Area   ########
                    144:
                    145: ######## Configuration variables #########
                    146: # These are defined to allow checking with perl -cw
                    147: %CVSROOT = %MIRRORS = %DEFAULTVALUE = %ICONS = %MTYPES =
                    148: %tags = %alltags = @tabcolors = ();
3.28      knu       149: $cvstreedefault = $body_tag = $body_tag_for_src =
3.26      knu       150: $logo = $defaulttitle = $address =
                    151: $long_intro = $short_instruction = $shortLogLen =
3.1       knu       152: $show_author = $dirtable = $tablepadding = $columnHeaderColorDefault =
3.3       knu       153: $columnHeaderColorSorted = $hr_breakable = $showfunc = $hr_ignwhite =
3.1       knu       154: $hr_ignkeysubst = $diffcolorHeading = $diffcolorEmpty = $diffcolorRemove =
                    155: $diffcolorChange = $diffcolorAdd = $diffcolorDarkChange = $difffontface =
                    156: $difffontsize = $inputTextSize = $mime_types = $allow_annotate =
                    157: $allow_markup = $use_java_script = $open_extern_window =
                    158: $extern_window_width = $extern_window_height = $edit_option_form =
                    159: $checkout_magic = $show_subdir_lastmod = $show_log_in_markup = $v =
3.12      knu       160: $navigationHeaderColor = $tableBorderColor = $markupLogColor =
3.25      knu       161: $tabstop = $use_moddate = $moddate = $gzip_open = undef;
1.21      wosch     162:
3.32      knu       163: $LOG_FILESEPARATOR = q/^={77}$/;
                    164: $LOG_REVSEPARATOR = q/^-{28}$/;
                    165:
3.1       knu       166: ##### End of configuration variables #####
                    167:
                    168: use Time::Local;
                    169: use IPC::Open2;
1.1       jfieber   170:
3.23      knu       171: # Check if the zlib C library interface is installed, and if yes
                    172: # we can avoid using the extra gzip process.
                    173: eval {
                    174:        require Compress::Zlib;
                    175: };
                    176: $has_zlib = !$@;
                    177:
1.1       jfieber   178: $verbose = $v;
3.1       knu       179: $checkoutMagic = "~checkout~";
3.3       knu       180: $pathinfo = defined($ENV{PATH_INFO}) ? $ENV{PATH_INFO} : '';
                    181: $where = $pathinfo;
3.1       knu       182: $doCheckout = ($where =~ /^\/$checkoutMagic/);
                    183: $where =~ s|^/($checkoutMagic)?||;
                    184: $where =~ s|/+$||;
3.3       knu       185: $scriptname = defined($ENV{SCRIPT_NAME}) ? $ENV{SCRIPT_NAME} : '';
                    186: $scriptname =~ s|^/?|/|;
3.1       knu       187: $scriptname =~ s|/+$||;
3.3       knu       188: $scriptwhere = $scriptname;
3.1       knu       189: if ($where) {
3.3       knu       190:     $scriptwhere .= '/' . urlencode($where);
3.1       knu       191: }
3.3       knu       192:
                    193: $is_mod_perl = defined($ENV{MOD_PERL});
3.1       knu       194:
                    195: # in lynx, it it very annoying to have two links
                    196: # per file, so disable the link at the icon
                    197: # in this case:
3.12      knu       198: $Browser = $ENV{HTTP_USER_AGENT};
3.34    ! knu       199: $is_links = ($Browser =~ m`^Links `);
3.5       knu       200: $is_lynx = ($Browser =~ m`^Lynx/`i);
                    201: $is_w3m = ($Browser =~ m`^w3m/`i);
3.3       knu       202: $is_msie = ($Browser =~ m`MSIE`);
3.5       knu       203: $is_mozilla3 = ($Browser =~ m`^Mozilla/[3-9]`);
3.3       knu       204:
3.34    ! knu       205: $is_textbased = ($is_links || $is_lynx || $is_w3m);
3.5       knu       206:
                    207: $nofilelinks = $is_textbased;
3.1       knu       208:
                    209: # newer browsers accept gzip content encoding
                    210: # and state this in a header
                    211: # (netscape did always but didn't state it)
                    212: # It has been reported that these
                    213: #  braindamaged MS-Internet Exploders claim that they
                    214: # accept gzip .. but don't in fact and
                    215: # display garbage then :-/
3.23      knu       216: # Turn off gzip if running under mod_perl and no zlib is available,
                    217: # piping does not work as expected inside the server.
3.25      knu       218: $maycompress = (((defined($ENV{HTTP_ACCEPT_ENCODING})
                    219:                 && $ENV{HTTP_ACCEPT_ENCODING} =~ m`gzip`)
3.12      knu       220:                 || $is_mozilla3)
                    221:                && !$is_msie
3.23      knu       222:                && !($is_mod_perl && !$has_zlib));
3.1       knu       223:
                    224: # put here the variables we need in order
                    225: # to hold our state - they will be added (with
3.12      knu       226: # their current value) to any link/query string
3.1       knu       227: # you construct
3.6       knu       228: @stickyvars = qw(cvsroot hideattic sortby logsort f only_with_tag);
1.1       jfieber   229:
3.1       knu       230: if (-f $config) {
3.27      knu       231:    do $config
                    232:      || &fatal("500 Internal Error",
                    233:               sprintf('Error in loading configuration file: %s<BR><BR>%s<BR>',
                    234:                       $config, &htmlify($@)));
                    235: } else {
3.1       knu       236:    &fatal("500 Internal Error",
                    237:          'Configuration not found.  Set the variable <code>$config</code> '
                    238:           . 'in cvsweb.cgi, or the environment variable '
                    239:           . '<code>CVSWEB_CONFIG</code>, to your <b>cvsweb.conf</b> '
                    240:           . 'configuration file first.');
                    241: }
                    242:
                    243: undef %input;
3.3       knu       244: $query = $ENV{QUERY_STRING};
                    245:
3.12      knu       246: if (defined($query) && $query ne '') {
1.9       fenner    247:     foreach (split(/&/, $query)) {
1.7       fenner    248:        s/%(..)/sprintf("%c", hex($1))/ge;      # unquote %-quoted
                    249:        if (/(\S+)=(.*)/) {
3.1       knu       250:            $input{$1} = $2 if ($2 ne "");
                    251:        }
                    252:        else {
1.7       fenner    253:            $input{$_}++;
                    254:        }
                    255:     }
                    256: }
1.10      wosch     257:
3.12      knu       258: # For backwards compability, set only_with_tag to only_on_branch if set.
3.1       knu       259: $input{only_with_tag} = $input{only_on_branch}
                    260:     if (defined($input{only_on_branch}));
1.10      wosch     261:
3.1       knu       262: $DEFAULTVALUE{'cvsroot'} = $cvstreedefault;
1.10      wosch     263:
3.1       knu       264: foreach (keys %DEFAULTVALUE)
                    265: {
                    266:     # replace not given parameters with the default parameters
                    267:     if (!defined($input{$_}) || $input{$_} eq "") {
                    268:        # Empty Checkboxes in forms return -- nothing. So we define a helper
                    269:        # variable in these forms (copt) which indicates that we just set
                    270:        # parameters with a checkbox
                    271:        if (!defined($input{"copt"})) {
                    272:            # 'copt' isn't defined --> empty input is not the result
                    273:            # of empty input checkbox --> set default
                    274:            $input{$_} = $DEFAULTVALUE{$_} if (defined($DEFAULTVALUE{$_}));
                    275:        }
                    276:        else {
                    277:            # 'copt' is defined -> the result of empty input checkbox
                    278:            # -> set to zero (disable) if default is a boolean (0|1).
                    279:            $input{$_} = 0
                    280:                if (defined($DEFAULTVALUE{$_})
                    281:                    && ($DEFAULTVALUE{$_} eq "0" || $DEFAULTVALUE{$_} eq "1"));
                    282:        }
1.10      wosch     283:     }
                    284: }
3.12      knu       285:
3.1       knu       286: $barequery = "";
3.31      knu       287: my @barequery;
3.1       knu       288: foreach (@stickyvars) {
                    289:     # construct a query string with the sticky non default parameters set
3.12      knu       290:     if (defined($input{$_}) && $input{$_} ne '' &&
3.4       knu       291:        !(defined($DEFAULTVALUE{$_}) && $input{$_} eq $DEFAULTVALUE{$_})) {
3.32      knu       292:        push @barequery, join('=', urlencode($_), urlencode($input{$_}));
3.1       knu       293:     }
                    294: }
                    295: # is there any query ?
3.31      knu       296: if (@barequery) {
                    297:     $barequery = join('&amp;', @barequery);
3.1       knu       298:     $query = "?$barequery";
3.31      knu       299:     $barequery = "&amp;$barequery";
3.1       knu       300: }
                    301: else {
                    302:     $query = "";
                    303: }
3.31      knu       304: undef @barequery;
3.1       knu       305:
                    306: # get actual parameters
                    307: $sortby = $input{"sortby"};
                    308: $bydate = 0;
                    309: $byrev = 0;
                    310: $byauthor = 0;
                    311: $bylog = 0;
                    312: $byfile = 0;
                    313: if ($sortby eq "date") {
                    314:     $bydate = 1;
                    315: }
                    316: elsif ($sortby eq "rev") {
                    317:     $byrev = 1;
                    318: }
                    319: elsif ($sortby eq "author") {
                    320:     $byauthor = 1;
                    321: }
                    322: elsif ($sortby eq "log") {
                    323:     $bylog = 1;
                    324: }
                    325: else {
                    326:     $byfile = 1;
                    327: }
                    328:
                    329: $hr_default = $input{'f'} eq 'h';
                    330:
3.3       knu       331: $logsort = $input{'logsort'};
1.10      wosch     332:
1.12      fenner    333:
3.1       knu       334: ## Default CVS-Tree
                    335: if (!defined($CVSROOT{$cvstreedefault})) {
                    336:    &fatal("500 Internal Error",
                    337:          "<code>\$cvstreedefault</code> points to a repository "
                    338:          . "not defined in <code>%CVSROOT</code> "
                    339:          . "(edit your configuration file $config)");
                    340: }
                    341:
                    342: # alternate CVS-Tree, configured in cvsweb.conf
                    343: if ($input{'cvsroot'} && $CVSROOT{$input{'cvsroot'}}) {
                    344:     $cvstree = $input{'cvsroot'};
                    345: } else {
                    346:     $cvstree = $cvstreedefault;
1.10      wosch     347: }
                    348:
3.1       knu       349: $cvsroot = $CVSROOT{$cvstree};
1.10      wosch     350:
3.1       knu       351: # create icons out of description
3.32      knu       352: my $k;
3.31      knu       353: foreach $k (keys %ICONS) {
3.1       knu       354:     no strict 'refs';
                    355:     my ($itxt,$ipath,$iwidth,$iheight) = @{$ICONS{$k}};
                    356:     if ($ipath) {
3.3       knu       357:        ${"${k}icon"} = "<IMG SRC=\"$ipath\" ALT=\"$itxt\" BORDER=\"0\" WIDTH=\"$iwidth\" HEIGHT=\"$iheight\">";
1.16      wosch     358:     }
3.1       knu       359:     else {
3.3       knu       360:        ${"${k}icon"} = $itxt;
1.24      wosch     361:     }
                    362: }
3.31      knu       363: undef $k;
1.24      wosch     364:
3.27      knu       365: my $config_cvstree = "$config-$cvstree";
                    366:
3.1       knu       367: # Do some special configuration for cvstrees
3.27      knu       368: if (-f $config_cvstree) {
                    369:    do $config_cvstree
                    370:      || &fatal("500 Internal Error",
                    371:               sprintf('Error in loading configuration file: %s<BR><BR>%s<BR>',
                    372:                       $config_cvstree, &htmlify($@)));
                    373: }
3.31      knu       374: undef $config_cvstree;
3.1       knu       375:
                    376: $prcategories = '(?:' . join('|', @prcategories) . ')';
3.17      knu       377: $prcgi .= '%s' if defined($prcgi) && $prcgi !~ /%s/;
1.24      wosch     378:
3.1       knu       379: $fullname = $cvsroot . '/' . $where;
                    380: $mimetype = &getMimeTypeFromSuffix ($fullname);
                    381: $defaultTextPlain = ($mimetype eq "text/plain");
                    382: $defaultViewable = $allow_markup && viewable($mimetype);
                    383:
                    384: # search for GZIP if compression allowed
                    385: # We've to find out if the GZIP-binary exists .. otherwise
                    386: # ge get an Internal Server Error if we try to pipe the
3.12      knu       387: # output through the nonexistent gzip ..
3.1       knu       388: # any more elegant ways to prevent this are welcome!
3.23      knu       389: if ($allow_compress && $maycompress && !$has_zlib) {
3.1       knu       390:     foreach (split(/:/, $ENV{PATH})) {
                    391:        if (-x "$_/gzip") {
                    392:            $GZIPBIN = "$_/gzip";
                    393:            last;
1.16      wosch     394:        }
                    395:     }
                    396: }
                    397:
3.1       knu       398: if (-d $fullname) {
                    399:     #
                    400:     # ensure, that directories always end with (exactly) one '/'
                    401:     # to allow relative URL's. If they're not, make a redirect.
                    402:     ##
                    403:     if (!($pathinfo =~ m|/$|) || ($pathinfo =~ m |/{2,}$|)) {
                    404:        redirect ($scriptwhere . '/' . $query);
                    405:     }
                    406:     else {
                    407:        $where .= '/';
                    408:        $scriptwhere .= '/';
                    409:     }
                    410: }
                    411:
                    412: if (!-d $cvsroot) {
                    413:     &fatal("500 Internal Error",'$CVSROOT not found!<P>The server on which the CVS tree lives is probably down.  Please try again in a few minutes.');
                    414: }
                    415:
                    416: #
                    417: # See if the module is in our forbidden list.
                    418: #
                    419: $where =~ m:([^/]*):;
                    420: $module = $1;
                    421: if ($module && &forbidden_module($module)) {
                    422:     &fatal("403 Forbidden", "Access to $where forbidden.");
                    423: }
                    424: ##############################
                    425: # View a directory
                    426: ###############################
                    427: elsif (-d $fullname) {
                    428:        my $dh = do {local(*DH);};
                    429:        opendir($dh, $fullname) || &fatal("404 Not Found","$where: $!");
                    430:        my @dir = readdir($dh);
                    431:        closedir($dh);
                    432:        my @subLevelFiles = findLastModifiedSubdirs(@dir)
                    433:            if ($show_subdir_lastmod);
                    434:        getDirLogs($cvsroot,$where,@subLevelFiles);
                    435:
                    436:        if ($where eq '/') {
3.3       knu       437:            html_header($defaulttitle);
3.2       knu       438:            $long_intro =~ s/!!CVSROOTdescr!!/$CVSROOTdescr{$cvstree}/g;
3.1       knu       439:            print $long_intro;
                    440:        }
                    441:        else {
3.3       knu       442:            html_header($where);
3.1       knu       443:            print $short_instruction;
                    444:        }
                    445:
                    446:        my $descriptions;
                    447:        if (($use_descriptions) && open (DESC, "<$cvsroot/CVSROOT/descriptions")) {
                    448:            while (<DESC>) {
                    449:                chomp;
                    450:                my ($dir,$description) = /(\S+)\s+(.*)/;
                    451:                $descriptions{$dir} = $description;
                    452:            }
                    453:        }
                    454:
                    455:        print "<P><a name=\"dirlist\"></a>\n";
                    456:        # give direct access to dirs
                    457:        if ($where eq '/') {
                    458:            chooseMirror();
                    459:            chooseCVSRoot();
                    460:        }
                    461:        else {
                    462:            print "<p>Current directory: <b>", &clickablePath($where,0), "</b>\n";
                    463:
                    464:            print "<P>Current tag: <B>", $input{only_with_tag}, "</b>\n" if
                    465:                $input{only_with_tag};
1.16      wosch     466:
1.1       jfieber   467:        }
3.12      knu       468:
3.1       knu       469:
                    470:        print "<HR NOSHADE>\n";
1.1       jfieber   471:        # Using <MENU> in this manner violates the HTML2.0 spec but
                    472:        # provides the results that I want in most browsers.  Another
                    473:        # case of layout spooging up HTML.
3.12      knu       474:
3.1       knu       475:        my $infocols = 0;
                    476:        if ($dirtable) {
                    477:            if (defined($tableBorderColor)) {
                    478:                # Can't this be done by defining the border for the inner table?
                    479:                print "<table border=0 cellpadding=0 width=\"100%\"><tr><td bgcolor=\"$tableBorderColor\">";
                    480:            }
                    481:            print "<table  width=\"100%\" border=0 cellspacing=1 cellpadding=$tablepadding>\n";
                    482:            $infocols++;
3.12      knu       483:            print "<tr><th align=left bgcolor=\"" . (($byfile) ?
                    484:                                                   $columnHeaderColorSorted :
3.1       knu       485:                                                   $columnHeaderColorDefault) . "\">";
                    486:            print "<a href=\"./" . &toggleQuery("sortby","file") .
                    487:                "#dirlist\">" if (!$byfile);
                    488:            print "File";
                    489:            print "</a>" if (!$byfile);
                    490:            print "</th>";
                    491:            # do not display the other column-headers, if we do not have any files
                    492:            # with revision information:
                    493:            if (scalar(%fileinfo)) {
                    494:                $infocols++;
3.12      knu       495:                print "<th align=left bgcolor=\"" . (($byrev) ?
                    496:                                                   $columnHeaderColorSorted :
3.1       knu       497:                                                   $columnHeaderColorDefault) . "\">";
                    498:                print "<a href=\"./" . &toggleQuery ("sortby","rev") .
                    499:                    "#dirlist\">" if (!$byrev);
                    500:                print "Rev.";
                    501:                print "</a>" if (!$byrev);
                    502:                print "</th>";
                    503:                $infocols++;
3.12      knu       504:                print "<th align=left bgcolor=\"" . (($bydate) ?
                    505:                                                   $columnHeaderColorSorted :
3.1       knu       506:                                                   $columnHeaderColorDefault) . "\">";
                    507:                print "<a href=\"./" . &toggleQuery ("sortby","date") .
                    508:                    "#dirlist\">" if (!$bydate);
                    509:                print "Age";
                    510:                print "</a>" if (!$bydate);
                    511:                print "</th>";
                    512:                if ($show_author) {
                    513:                    $infocols++;
3.12      knu       514:                    print "<th align=left bgcolor=\"" . (($byauthor) ?
                    515:                                                   $columnHeaderColorSorted :
3.1       knu       516:                                                   $columnHeaderColorDefault) . "\">";
                    517:                    print "<a href=\"./" . &toggleQuery ("sortby","author") .
                    518:                            "#dirlist\">" if (!$byauthor);
                    519:                    print "Author";
                    520:                    print "</a>" if (!$byauthor);
                    521:                    print "</th>";
                    522:                }
                    523:                $infocols++;
3.12      knu       524:                print "<th align=left bgcolor=\"" . (($bylog) ?
                    525:                                               $columnHeaderColorSorted :
3.1       knu       526:                                               $columnHeaderColorDefault) . "\">";
                    527:                print "<a href=\"./", toggleQuery("sortby","log"), "#dirlist\">" if (!$bylog);
                    528:                print "Last log entry";
                    529:                print "</a>" if (!$bylog);
                    530:                print "</th>";
                    531:            }
                    532:            elsif ($use_descriptions) {
                    533:                print "<th align=left bgcolor=\"". $columnHeaderColorDefault . "\">";
                    534:                print "Description";
                    535:                $infocols++;
                    536:            }
                    537:            print "</tr>\n";
                    538:        }
                    539:        else {
                    540:            print "<menu>\n";
                    541:        }
                    542:        my $dirrow = 0;
3.12      knu       543:
3.1       knu       544:        my $i;
1.9       fenner    545:        lookingforattic:
                    546:        for ($i = 0; $i <= $#dir; $i++) {
                    547:                if ($dir[$i] eq "Attic") {
3.1       knu       548:                    last lookingforattic;
1.9       fenner    549:                }
                    550:        }
3.1       knu       551:        if (!$input{'hideattic'} && ($i <= $#dir) &&
                    552:            opendir($dh, $fullname . "/Attic")) {
                    553:            splice(@dir, $i, 1,
                    554:                        grep((s|^|Attic/|,!m|/\.|), readdir($dh)));
                    555:            closedir($dh);
1.9       fenner    556:        }
3.1       knu       557:
3.12      knu       558:        my $hideAtticToggleLink = "<a href=\"./" .
3.1       knu       559:                &toggleQuery ("hideattic") .
                    560:                "#dirlist\">[Hide]</a>" if (!$input{'hideattic'});
                    561:
1.9       fenner    562:        # Sort without the Attic/ pathname.
3.1       knu       563:        # place directories first
                    564:
                    565:        my $attic;
                    566:        my $url;
                    567:        my $fileurl;
                    568:        my $filesexists;
                    569:        my $filesfound;
                    570:
                    571:        foreach (sort { &fileSortCmp } @dir) {
1.1       jfieber   572:            if ($_ eq '.') {
                    573:                next;
                    574:            }
1.19      wosch     575:            # ignore CVS lock and stale NFS files
3.1       knu       576:            next if (/^#cvs\.|^,|^\.nfs/);
                    577:
                    578:            # Check whether to show the CVSROOT path
                    579:            next if ($input{'hidecvsroot'} && ($_ eq 'CVSROOT'));
                    580:
                    581:            # Check whether the module is in the restricted list
                    582:            next if ($_ && &forbidden_module($_));
                    583:
                    584:            # Ignore non-readable files
                    585:            next if ($input{'hidenonreadable'} && !(-r "$fullname/$_"));
1.18      wosch     586:
1.9       fenner    587:            if (s|^Attic/||) {
3.1       knu       588:                $attic  = " (in the Attic)&nbsp;" . $hideAtticToggleLink;
                    589:            }
                    590:            else {
1.9       fenner    591:                $attic = "";
                    592:            }
3.1       knu       593:
                    594:            if ($_ eq '..' || -d "$fullname/$_") {
                    595:                next if ($_ eq '..' && $where eq '/');
                    596:                my ($rev,$date,$log,$author,$filename) = @{$fileinfo{$_}}
                    597:                    if (defined($fileinfo{$_}));
                    598:                print "<tr bgcolor=\"" . @tabcolors[$dirrow%2] . "\"><td>" if ($dirtable);
                    599:                if ($_ eq '..') {
                    600:                    $url = "../" . $query;
                    601:                    if ($nofilelinks) {
                    602:                        print $backicon;
                    603:                    }
                    604:                    else {
                    605:                        print &link($backicon,$url);
                    606:                    }
                    607:                    print " ", &link("Previous Directory",$url);
                    608:                }
                    609:                else {
                    610:                    $url = urlencode($_) . '/' . $query;
                    611:                    print "<A NAME=\"$_\"></A>";
                    612:                    if ($nofilelinks) {
                    613:                        print $diricon;
                    614:                    }
                    615:                    else {
                    616:                        print &link($diricon,$url);
                    617:                    }
                    618:                    print " ", &link($_ . "/", $url), $attic;
                    619:                    if ($_ eq "Attic") {
3.12      knu       620:                        print "&nbsp; <a href=\"./" .
3.1       knu       621:                            &toggleQuery ("hideattic") .
                    622:                                "#dirlist\">[Don't hide]</a>";
                    623:                    }
3.12      knu       624:                }
3.1       knu       625:                # Show last change in dir
                    626:                if ($filename) {
                    627:                    print "</td><td>&nbsp;</td><td>&nbsp;" if ($dirtable);
                    628:                    if ($date) {
                    629:                        print " <i>" . readableTime(time() - $date,0) . "</i>";
                    630:                    }
                    631:                    if ($show_author) {
                    632:                        print "</td><td>&nbsp;" if ($dirtable);
                    633:                        print $author;
                    634:                    }
                    635:                    print "</td><td>&nbsp;" if ($dirtable);
                    636:                    $filename =~ s%^[^/]+/%%;
                    637:                    print "$filename/$rev";
                    638:                    print "<BR>" if ($dirtable);
                    639:                    if ($log) {
                    640:                        print "&nbsp;<font size=-1>"
                    641:                            . &htmlify(substr($log,0,$shortLogLen));
                    642:                        if (length $log > 80) {
                    643:                            print "...";
                    644:                        }
                    645:                        print "</font>";
                    646:                    }
                    647:                }
                    648:                else {
                    649:                    my ($dwhere) = ($where ne "/" ? $where : "") . $_;
                    650:                    if ($use_descriptions && defined $descriptions{$dwhere}) {
                    651:                        print "<TD COLSPAN=" . ($infocols-1) . ">&nbsp;" if $dirtable;
                    652:                        print $descriptions{$dwhere};
                    653:                    } elsif ($dirtable && $infocols > 1) {
                    654:                        # close the row with the appropriate number of
                    655:                        # columns, so that the vertical seperators are visible
                    656:                        my($cols) = $infocols;
                    657:                        while ($cols > 1) {
                    658:                            print "</td><td>&nbsp;";
                    659:                            $cols--;
                    660:                        }
                    661:                    }
                    662:                }
                    663:                if ($dirtable) {
                    664:                    print "</td></tr>\n";
                    665:                }
                    666:                else {
                    667:                    print "<br>\n";
                    668:                }
                    669:                $dirrow++;
1.9       fenner    670:            }
3.1       knu       671:            elsif (s/,v$//) {
                    672:                $fileurl = ($attic ? "Attic/" : "") . urlencode($_);
                    673:                $url = $fileurl . $query;
                    674:                my $rev = '';
                    675:                my $date = '';
                    676:                my $log = '';
                    677:                my $author = '';
                    678:                $filesexists++;
                    679:                next if (!defined($fileinfo{$_}));
                    680:                ($rev,$date,$log,$author) = @{$fileinfo{$_}};
                    681:                $filesfound++;
                    682:                print "<tr bgcolor=\"" . @tabcolors[$dirrow%2] . "\"><td>" if ($dirtable);
                    683:                print "<A NAME=\"$_\"></A>";
                    684:                if ($nofilelinks) {
                    685:                    print $fileicon;
                    686:                }
                    687:                else {
                    688:                    print &link($fileicon,$url);
                    689:                }
                    690:                print " ", &link($_, $url), $attic;
                    691:                print "</td><td>&nbsp;" if ($dirtable);
                    692:                download_link($fileurl,
3.12      knu       693:                        $rev, $rev,
3.1       knu       694:                        $defaultViewable ? "text/x-cvsweb-markup" : undef);
                    695:                print "</td><td>&nbsp;" if ($dirtable);
                    696:                if ($date) {
                    697:                    print " <i>" . readableTime(time() - $date,0) . "</i>";
                    698:                }
                    699:                if ($show_author) {
                    700:                    print "</td><td>&nbsp;" if ($dirtable);
                    701:                    print $author;
                    702:                }
                    703:                print "</td><td>&nbsp;" if ($dirtable);
                    704:                if ($log) {
                    705:                    print " <font size=-1>" . &htmlify(substr($log,0,$shortLogLen));
                    706:                    if (length $log > 80) {
                    707:                        print "...";
                    708:                    }
                    709:                    print "</font>";
                    710:                }
                    711:                print "</td>" if ($dirtable);
                    712:                print (($dirtable) ? "</tr>" : "<br>");
                    713:                $dirrow++;
                    714:            }
                    715:            print "\n";
                    716:        }
                    717:        if ($dirtable && defined($tableBorderColor)) {
                    718:            print "</td></tr></table>";
                    719:        }
                    720:        print "". ($dirtable == 1) ? "</table>" : "</menu>" . "\n";
3.12      knu       721:
3.1       knu       722:        if ($filesexists && !$filesfound) {
                    723:            print "<P><B>NOTE:</B> There are $filesexists files, but none matches the current tag ($input{only_with_tag})\n";
                    724:        }
                    725:        if ($input{only_with_tag} && (!%tags || !$tags{$input{only_with_tag}})) {
                    726:            %tags = %alltags
                    727:        }
3.12      knu       728:        if (scalar %tags
                    729:            || $input{only_with_tag}
3.1       knu       730:            || $edit_option_form
                    731:            || defined($input{"options"})) {
                    732:            print "<hr size=1 NOSHADE>";
                    733:        }
                    734:
                    735:        if (scalar %tags || $input{only_with_tag}) {
                    736:            print "<FORM METHOD=\"GET\" ACTION=\"./\">\n";
                    737:            foreach my $var (@stickyvars) {
                    738:                print "<INPUT TYPE=HIDDEN NAME=\"$var\" VALUE=\"$input{$var}\">\n"
                    739:                    if (defined($input{$var})
3.23      knu       740:                        && (!defined($DEFAULTVALUE{$var})
                    741:                            || $input{$var} ne $DEFAULTVALUE{$var})
3.1       knu       742:                        && $input{$var} ne ""
                    743:                        && $var ne "only_with_tag");
                    744:            }
                    745:            print "Show only files with tag:\n";
                    746:            print "<SELECT NAME=only_with_tag";
                    747:            print " onchange=\"submit()\"" if ($use_java_script);
                    748:            print ">";
                    749:            print "<OPTION VALUE=\"\">All tags / default branch\n";
                    750:            foreach my $tag (reverse sort { lc $a cmp lc $b } keys %tags) {
3.12      knu       751:                print "<OPTION",defined($input{only_with_tag}) &&
3.13      knu       752:                       $input{only_with_tag} eq $tag ? " SELECTED" : "",
3.1       knu       753:                       ">$tag\n";
                    754:            }
                    755:            print "</SELECT>\n";
                    756:            print "<INPUT TYPE=SUBMIT VALUE=\"Go\">\n";
1.9       fenner    757:            print "</FORM>\n";
                    758:        }
3.1       knu       759:        my $formwhere = $scriptwhere;
                    760:        $formwhere =~ s|Attic/?$|| if ($input{'hideattic'});
                    761:
                    762:        if ($edit_option_form || defined($input{"options"})) {
                    763:            print "<FORM METHOD=\"GET\" ACTION=\"${formwhere}\">\n";
                    764:            print "<INPUT TYPE=HIDDEN NAME=\"copt\" VALUE=\"1\">\n";
                    765:            if ($cvstree ne $cvstreedefault) {
                    766:                print "<INPUT TYPE=HIDDEN NAME=\"cvsroot\" VALUE=\"$cvstree\">\n";
                    767:            }
                    768:            print "<center><table cellpadding=0 cellspacing=0>";
                    769:            print "<tr bgcolor=\"$columnHeaderColorDefault\"><th colspan=2>Preferences</th></tr>";
                    770:            print "<tr><td>Sort files by <SELECT name=\"sortby\">";
                    771:            print "<OPTION VALUE=\"\">File";
                    772:            print "<OPTION",$bydate ? " SELECTED" : ""," VALUE=date>Age";
                    773:            print "<OPTION",$byauthor ? " SELECTED" : ""," VALUE=author>Author"
                    774:                if ($show_author);
                    775:            print "<OPTION",$byrev ? " SELECTED" : ""," VALUE=rev>Revision";
                    776:            print "<OPTION",$bylog ? " SELECTED" : ""," VALUE=log>Log message";
                    777:            print "</SELECT></td>";
                    778:            print "<td>revisions by: \n";
                    779:            print "<SELECT NAME=logsort>\n";
                    780:            print "<OPTION VALUE=cvs",$logsort eq "cvs" ? " SELECTED" : "", ">Not sorted";
                    781:            print "<OPTION VALUE=date",$logsort eq "date" ? " SELECTED" : "", ">Commit date";
                    782:            print "<OPTION VALUE=rev",$logsort eq "rev" ? " SELECTED" : "", ">Revision";
                    783:            print "</SELECT></td></tr>";
                    784:            print "<tr><td>Diff format: ";
3.12      knu       785:            printDiffSelect(0);
3.1       knu       786:            print "</td>";
                    787:            print "<td>Show Attic files: ";
3.13      knu       788:            print "<INPUT NAME=hideattic TYPE=CHECKBOX", $input{'hideattic'} ? " CHECKED" : "",
3.1       knu       789:            "></td></tr>\n";
                    790:            print "<tr><td align=center colspan=2><input type=submit value=\"Change Options\">";
                    791:            print "</td></tr></table></center></FORM>\n";
1.12      fenner    792:        }
1.2       jfieber   793:        print &html_footer;
1.1       jfieber   794:        print "</BODY></HTML>\n";
3.12      knu       795:     }
3.1       knu       796:
                    797: ###############################
                    798: # View Files
                    799: ###############################
                    800:     elsif (-f $fullname . ',v') {
                    801:        if (defined($input{'rev'}) || $doCheckout) {
                    802:            &doCheckout($fullname, $input{'rev'});
3.25      knu       803:            gzipclose();
3.1       knu       804:            exit;
                    805:        }
                    806:        if (defined($input{'annotate'}) && $allow_annotate) {
                    807:            &doAnnotate($input{'annotate'});
3.25      knu       808:            gzipclose();
3.1       knu       809:            exit;
                    810:        }
                    811:        if (defined($input{'r1'}) && defined($input{'r2'})) {
                    812:            &doDiff($fullname, $input{'r1'}, $input{'tr1'},
                    813:                    $input{'r2'}, $input{'tr2'}, $input{'f'});
3.25      knu       814:            gzipclose();
3.1       knu       815:            exit;
                    816:        }
                    817:        print("going to dolog($fullname)\n") if ($verbose);
                    818:        &doLog($fullname);
                    819: ##############################
                    820: # View Diff
                    821: ##############################
                    822:     }
                    823:     elsif ($fullname =~ s/\.diff$// && -f $fullname . ",v" &&
                    824:           $input{'r1'} && $input{'r2'}) {
                    825:
                    826:        # $where-diff-removal if 'cvs rdiff' is used
                    827:        # .. but 'cvs rdiff'doesn't support some options
                    828:        # rcsdiff does (-w and -p), so it is disabled
                    829:        # $where =~ s/\.diff$//;
                    830:
1.12      fenner    831:        # Allow diffs using the ".diff" extension
                    832:        # so that browsers that default to the URL
                    833:        # for a save filename don't save diff's as
                    834:        # e.g. foo.c
3.1       knu       835:        &doDiff($fullname, $input{'r1'}, $input{'tr1'},
1.12      fenner    836:                $input{'r2'}, $input{'tr2'}, $input{'f'});
3.25      knu       837:        gzipclose();
1.12      fenner    838:        exit;
3.1       knu       839:     }
                    840:     elsif (($newname = $fullname) =~ s|/([^/]+)$|/Attic/$1| &&
                    841:           -f $newname . ",v") {
1.12      fenner    842:        # The file has been removed and is in the Attic.
                    843:        # Send a redirect pointing to the file in the Attic.
3.1       knu       844:        (my $newplace = $scriptwhere) =~ s|/([^/]+)$|/Attic/$1|;
1.12      fenner    845:        &redirect($newplace);
                    846:        exit;
3.1       knu       847:     }
                    848:     elsif (0 && (my @files = &safeglob($fullname . ",v"))) {
                    849:        http_header("text/plain");
1.12      fenner    850:        print "You matched the following files:\n";
                    851:        print join("\n", @files);
                    852:        # Find the tags from each file
                    853:        # Display a form offering diffs between said tags
3.1       knu       854:     }
                    855:     else {
                    856:        my $fh = do {local(*FH);};
                    857:        my ($xtra, $module);
1.12      fenner    858:        # Assume it's a module name with a potential path following it.
1.13      fenner    859:        $xtra = $& if (($module = $where) =~ s|/.*||);
1.12      fenner    860:        # Is there an indexed version of modules?
3.1       knu       861:        if (open($fh, "$cvsroot/CVSROOT/modules")) {
                    862:            while (<$fh>) {
                    863:                if (/^(\S+)\s+(\S+)/o && $module eq $1
                    864:                    && -d "${cvsroot}/$2" && $module ne $2) {
                    865:                    &redirect($scriptname . '/' . $2 . $xtra);
1.12      fenner    866:                }
3.1       knu       867:            }
1.12      fenner    868:        }
                    869:        &fatal("404 Not Found","$where: no such file or directory");
3.1       knu       870:     }
3.23      knu       871:
3.25      knu       872: gzipclose();
3.1       knu       873: ## End MAIN
                    874:
3.12      knu       875: sub printDiffSelect($) {
3.1       knu       876:     my ($use_java_script) = @_;
                    877:     my ($f) = $input{'f'};
                    878:     print "<SELECT NAME=\"f\"";
                    879:     print " onchange=\"submit()\"" if ($use_java_script);
                    880:     print ">\n";
                    881:     print "<OPTION VALUE=h",$f eq "h" ? " SELECTED" : "", ">Colored Diff";
                    882:     print "<OPTION VALUE=H",$f eq "H" ? " SELECTED" : "", ">Long Colored Diff";
                    883:     print "<OPTION VALUE=u",$f eq "u" ? " SELECTED" : "", ">Unidiff";
                    884:     print "<OPTION VALUE=c",$f eq "c" ? " SELECTED" : "", ">Context Diff";
                    885:     print "<OPTION VALUE=s",$f eq "s" ? " SELECTED" : "", ">Side by Side";
                    886:     print "</SELECT>";
                    887: }
                    888:
3.12      knu       889: sub findLastModifiedSubdirs(@) {
3.1       knu       890:     my (@dirs) = @_;
                    891:     my ($dirname, @files);
                    892:
                    893:     foreach $dirname (@dirs) {
                    894:        next if ($dirname eq ".");
                    895:        next if ($dirname eq "..");
                    896:        my ($dir) = "$fullname/$dirname";
                    897:        next if (!-d $dir);
                    898:
                    899:        my ($lastmod) = undef;
                    900:        my ($lastmodtime) = undef;
                    901:        my $dh = do {local(*DH);};
                    902:
                    903:        opendir($dh,$dir) || next;
                    904:        my (@filenames) = readdir($dh);
                    905:        closedir($dh);
                    906:
                    907:        foreach my $filename (@filenames) {
                    908:            $filename = "$dirname/$filename";
                    909:            my ($file) = "$fullname/$filename";
                    910:            next if ($filename !~ /,v$/ || !-f $file);
                    911:            $filename =~ s/,v$//;
                    912:            my $modtime = -M $file;
                    913:            if (!defined($lastmod) || $modtime < $lastmodtime) {
                    914:                $lastmod = $filename;
                    915:                $lastmodtime = $modtime;
                    916:            }
                    917:        }
                    918:        push(@files, $lastmod) if (defined($lastmod));
                    919:     }
                    920:     return @files;
1.12      fenner    921: }
                    922:
3.12      knu       923: sub htmlify($;$) {
3.17      knu       924:        my($string, $extra) = @_;
1.12      fenner    925:
3.1       knu       926:        # Special Characters; RFC 1866
1.12      fenner    927:        $string =~ s/&/&amp;/g;
3.12      knu       928:        $string =~ s/\"/&quot;/g;
1.12      fenner    929:        $string =~ s/</&lt;/g;
                    930:        $string =~ s/>/&gt;/g;
                    931:
3.1       knu       932:        # get URL's as link ..
3.19      knu       933:        $string =~ s`(http|ftp|https)(://[-a-zA-Z0-9%.~:_/]+)([?&]([-a-zA-Z0-9%.~:_]+)=([-a-zA-Z0-9%.~:_])+)*`<A HREF="$1$2$3">$1$2$3</A>`g;    # `
3.1       knu       934:        # get e-mails as link
3.19      knu       935:        $string =~ s`([-a-zA-Z0-9_.]+@([-a-zA-Z0-9]+\.)+[A-Za-z]{2,4})`<A HREF="mailto:$1">$1</A>`g;    # `
3.1       knu       936:
3.17      knu       937:        if ($extra) {
                    938:            # get PR #'s as link ..
                    939:            if (defined($prcgi)) {
3.33      knu       940:                1 while $string =~ s`\b(pr[:#]?\s*(?:#?\d+[,\s]\s*)*#?)(\d+)\b`$1 . &link($2, sprintf($prcgi, $2))`ie; # `;
                    941:                $string =~ s`\b${prcategories}/(\d+)\b`&link($&, sprintf($prcgi, $1))`igeo;     # `;
3.17      knu       942:            }
                    943:
                    944:            # get manpage specs as link ..
                    945:            if (defined($mancgi)) {
3.33      knu       946:                $string =~ s`\b([a-zA-Z]\w+)(?:\(([0-9n])\)\B|\.([0-9n])\b)`&link($&, sprintf($mancgi, $2 ne '' ? $2 : $3, $1))`ge; # `x;
3.17      knu       947:            }
3.1       knu       948:        }
                    949:
                    950:        return $string;
                    951: }
                    952:
3.20      knu       953: sub spacedHtmlText($;$) {
3.12      knu       954:        local $_ = $_[0];
3.20      knu       955:        my $ts = $_[1] || $tabstop;
3.1       knu       956:
3.20      knu       957:        # Cut trailing spaces and tabs
                    958:        s/[ \t]+$//;
3.1       knu       959:
3.22      knu       960:         if (defined($ts)) {
3.20      knu       961:            # Expand tabs
                    962:            1 while s/\t+/' ' x (length($&) * $ts - length($`) % $ts)/e
                    963:        }
3.1       knu       964:
                    965:        # replace <tab> and <space> (\001 is to protect us from htmlify)
                    966:        # gzip can make excellent use of this repeating pattern :-)
                    967:        if ($hr_breakable) {
                    968:            # make every other space 'breakable'
3.12      knu       969:            s/  / \001nbsp;/g;                              # 2 * <space>
3.1       knu       970:            # leave single space as it is
3.20      knu       971:        } else {
3.12      knu       972:            s/ /\001nbsp;/g;
1.12      fenner    973:        }
                    974:
3.12      knu       975:        $_ = htmlify($_);
3.1       knu       976:
                    977:        # unescape
3.20      knu       978:        y/\001/&/;
3.1       knu       979:
3.12      knu       980:        return $_;
1.12      fenner    981: }
                    982:
3.12      knu       983: sub link($$) {
3.1       knu       984:        my($name, $where) = @_;
1.12      fenner    985:
3.33      knu       986:        return "<A HREF=\"$where\">$name</A>";
1.12      fenner    987: }
                    988:
3.12      knu       989: sub revcmp($$) {
3.1       knu       990:        my($rev1, $rev2) = @_;
3.15      knu       991:
                    992:        # make no comparison for a tag or a branch
                    993:        return 0 if $rev1 =~ /[^\d.]/ || $rev2 =~ /[^\d.]/;
                    994:
3.1       knu       995:        my(@r1) = split(/\./, $rev1);
                    996:        my(@r2) = split(/\./, $rev2);
                    997:        my($a,$b);
1.12      fenner    998:
                    999:        while (($a = shift(@r1)) && ($b = shift(@r2))) {
                   1000:            if ($a != $b) {
                   1001:                return $a <=> $b;
                   1002:            }
                   1003:        }
                   1004:        if (@r1) { return 1; }
                   1005:        if (@r2) { return -1; }
                   1006:        return 0;
                   1007: }
                   1008:
3.12      knu      1009: sub fatal($$) {
3.1       knu      1010:        my($errcode, $errmsg) = @_;
3.3       knu      1011:        if ($is_mod_perl) {
3.1       knu      1012:                Apache->request->status((split(/ /, $errcode))[0]);
                   1013:        }
                   1014:        else {
3.4       knu      1015:                print "Status: $errcode\r\n";
3.1       knu      1016:        }
                   1017:        html_header("Error");
1.12      fenner   1018:        print "Error: $errmsg\n";
                   1019:        print &html_footer;
                   1020:        exit(1);
                   1021: }
                   1022:
3.12      knu      1023: sub redirect($) {
3.1       knu      1024:        my($url) = @_;
3.3       knu      1025:        if ($is_mod_perl) {
3.1       knu      1026:                Apache->request->status(301);
                   1027:                Apache->request->header_out(Location => $url);
                   1028:        }
                   1029:        else {
3.4       knu      1030:                print "Status: 301 Moved\r\n";
                   1031:                print "Location: $url\r\n";
3.1       knu      1032:        }
                   1033:        html_header("Moved");
1.12      fenner   1034:        print "This document is located <A HREF=$url>here</A>.\n";
                   1035:        print &html_footer;
                   1036:        exit(1);
                   1037: }
                   1038:
3.12      knu      1039: sub safeglob($) {
3.1       knu      1040:        my ($filename) = @_;
                   1041:        my ($dirname);
                   1042:        my (@results);
                   1043:        my $dh = do {local(*DH);};
1.12      fenner   1044:
                   1045:        ($dirname = $filename) =~ s|/[^/]+$||;
                   1046:        $filename =~ s|.*/||;
                   1047:
3.1       knu      1048:        if (opendir($dh, $dirname)) {
                   1049:                my $glob = $filename;
                   1050:                my $t;
1.12      fenner   1051:        #       transform filename from glob to regex.  Deal with:
                   1052:        #       [, {, ?, * as glob chars
                   1053:        #       make sure to escape all other regex chars
                   1054:                $glob =~ s/([\.\(\)\|\+])/\\$1/g;
                   1055:                $glob =~ s/\*/.*/g;
                   1056:                $glob =~ s/\?/./g;
                   1057:                $glob =~ s/{([^}]+)}/($t = $1) =~ s-,-|-g; "($t)"/eg;
3.1       knu      1058:                foreach (readdir($dh)) {
1.12      fenner   1059:                        if (/^${glob}$/) {
                   1060:                                push(@results, $dirname . "/" .$_);
                   1061:                        }
                   1062:                }
                   1063:        }
                   1064:
                   1065:        @results;
                   1066: }
                   1067:
3.12      knu      1068: sub getMimeTypeFromSuffix($) {
3.1       knu      1069:     my ($fullname) = @_;
                   1070:     my ($mimetype, $suffix);
                   1071:     my $fh = do {local(*FH);};
                   1072:
                   1073:     ($suffix = $fullname) =~ s/^.*\.([^.]*)$/$1/;
                   1074:     $mimetype = $MTYPES{$suffix};
                   1075:     $mimetype = $MTYPES{'*'} if (!$mimetype);
3.12      knu      1076:
3.1       knu      1077:     if (!$mimetype && -f $mime_types) {
                   1078:        # okey, this is something special - search the
                   1079:        # mime.types database
                   1080:        open ($fh, "<$mime_types");
                   1081:        while (<$fh>) {
                   1082:            if ($_ =~ /^\s*(\S+\/\S+).*\b$suffix\b/) {
                   1083:                $mimetype = $1;
                   1084:                last;
                   1085:            }
                   1086:        }
                   1087:        close ($fh);
                   1088:     }
3.12      knu      1089:
3.1       knu      1090: # okey, didn't find anything useful ..
                   1091:     if (!($mimetype =~ /\S\/\S/)) {
                   1092:        $mimetype = "text/plain";
                   1093:     }
                   1094:     return $mimetype;
                   1095: }
                   1096:
                   1097: ###############################
3.24      knu      1098: # read first lines like head(1)
                   1099: ###############################
                   1100: sub head($;$) {
                   1101:     my $fh = $_[0];
                   1102:     my $linecount = $_[1] || 10;
                   1103:
                   1104:     my @buf;
                   1105:
                   1106:     if ($linecount > 0) {
                   1107:        my $i;
                   1108:        for ($i = 0; !eof($fh) && $i < $linecount; $i++) {
                   1109:            push @buf, scalar <$fh>;
                   1110:        }
                   1111:     } else {
                   1112:        @buf = <$fh>;
                   1113:     }
                   1114:
                   1115:     @buf;
                   1116: }
                   1117:
                   1118: ###############################
                   1119: # scan vim and Emacs directives
                   1120: ###############################
                   1121: sub scan_directives(@) {
                   1122:     my $ts = undef;
                   1123:
                   1124:     for (@_) {
                   1125:        $ts = $1 if /\b(?:ts|tabstop|tab-width)[:=]\s*([1-9]\d*)\b/;
                   1126:     }
                   1127:
                   1128:     ('tabstop' => $ts);
                   1129: }
                   1130:
                   1131: ###############################
3.1       knu      1132: # show Annotation
                   1133: ###############################
3.12      knu      1134: sub doAnnotate($$) {
3.1       knu      1135:     my ($rev) = @_;
                   1136:     my ($pid);
                   1137:     my ($pathname, $filename);
                   1138:     my $reader = do {local(*FH);};
                   1139:     my $writer = do {local(*FH);};
                   1140:
                   1141:     # make sure the revisions a wellformed, for security
                   1142:     # reasons ..
3.15      knu      1143:     if ($rev =~ /[^\w.]/) {
3.1       knu      1144:        &fatal("404 Not Found",
3.3       knu      1145:                "Malformed query \"$ENV{QUERY_STRING}\"");
3.1       knu      1146:     }
1.12      fenner   1147:
3.1       knu      1148:     ($pathname = $where) =~ s/(Attic\/)?[^\/]*$//;
                   1149:     ($filename = $where) =~ s/^.*\///;
                   1150:
                   1151:     # this seems to be necessary
                   1152:     $| = 1; $| = 0; # Flush
                   1153:
                   1154:     # this annotate version is based on the
                   1155:     # cvs annotate-demo Perl script by Cyclic Software
                   1156:     # It was written by Cyclic Software, http://www.cyclic.com/, and is in
                   1157:     # the public domain.
                   1158:     # we could abandon the use of rlog, rcsdiff and co using
                   1159:     # the cvsserver in a similiar way one day (..after rewrite)
3.29      knu      1160:     $pid = open2($reader, $writer, "cvs -Rl server") || fatal ("500 Internal Error",
3.1       knu      1161:                                                               "Fatal Error - unable to open cvs for annotation");
3.12      knu      1162:
3.1       knu      1163:     # OK, first send the request to the server.  A simplified example is:
                   1164:     #     Root /home/kingdon/zwork/cvsroot
                   1165:     #     Argument foo/xx
                   1166:     #     Directory foo
                   1167:     #     /home/kingdon/zwork/cvsroot/foo
                   1168:     #     Directory .
                   1169:     #     /home/kingdon/zwork/cvsroot
                   1170:     #     annotate
                   1171:     # although as you can see there are a few more details.
3.12      knu      1172:
3.1       knu      1173:     print $writer "Root $cvsroot\n";
                   1174:     print $writer "Valid-responses ok error Valid-requests Checked-in Updated Merged Removed M E\n";
                   1175:     # Don't worry about sending valid-requests, the server just needs to
                   1176:     # support "annotate" and if it doesn't, there isn't anything to be done.
                   1177:     print $writer "UseUnchanged\n";
                   1178:     print $writer "Argument -r\n";
                   1179:     print $writer "Argument $rev\n";
                   1180:     print $writer "Argument $where\n";
                   1181:
                   1182:     # The protocol requires us to fully fake a working directory (at
                   1183:     # least to the point of including the directories down to the one
                   1184:     # containing the file in question).
                   1185:     # So if $where is "dir/sdir/file", then @dirs will be ("dir","sdir","file")
3.3       knu      1186:     my @dirs = split('/', $where);
3.1       knu      1187:     my $path = "";
                   1188:     foreach (@dirs) {
                   1189:        if ($path eq "") {
                   1190:            # In our example, $_ is "dir".
                   1191:            $path = $_;
3.12      knu      1192:        }
3.1       knu      1193:        else {
3.3       knu      1194:            print $writer "Directory $path\n";
                   1195:            print $writer "$cvsroot/$path\n";
3.1       knu      1196:            # In our example, $_ is "sdir" and $path becomes "dir/sdir"
                   1197:            # And the next time, "file" and "dir/sdir/file" (which then gets
                   1198:            # ignored, because we don't need to send Directory for the file).
3.3       knu      1199:             $path .= "/$_";
3.1       knu      1200:        }
                   1201:     }
                   1202:     # And the last "Directory" before "annotate" is the top level.
                   1203:     print $writer "Directory .\n";
                   1204:     print $writer "$cvsroot\n";
3.12      knu      1205:
3.1       knu      1206:     print $writer "annotate\n";
                   1207:     # OK, we've sent our command to the server.  Thing to do is to
                   1208:     # close the writer side and get all the responses.  If "cvs server"
                   1209:     # were nicer about buffering, then we could just leave it open, I think.
                   1210:     close ($writer) || die "cannot close: $!";
3.12      knu      1211:
3.30      knu      1212:     http_header();
                   1213:
                   1214:     navigateHeader($scriptwhere,$pathname,$filename,$rev, "annotate");
                   1215:     print "<h3 align=center>Annotation of $pathname$filename, Revision $rev</h3>\n";
                   1216:
3.1       knu      1217:     # Ready to get the responses from the server.
                   1218:     # For example:
                   1219:     #     E Annotations for foo/xx
                   1220:     #     E ***************
3.12      knu      1221:     #     M 1.3          (kingdon  06-Sep-97): hello
3.1       knu      1222:     #     ok
                   1223:     my ($lineNr) = 0;
                   1224:     my ($oldLrev, $oldLusr) = ("", "");
                   1225:     my ($revprint, $usrprint);
                   1226:     if ($annTable) {
                   1227:        print "<table border=0 cellspacing=0 cellpadding=0>\n";
                   1228:     }
                   1229:     else {
                   1230:        print "<pre>";
                   1231:     }
3.24      knu      1232:
                   1233:     # prefetch several lines
                   1234:     my @buf = head($reader);
                   1235:
                   1236:     my %d = scan_directives(@buf);
                   1237:
                   1238:     while (@buf || !eof($reader)) {
                   1239:        $_ = @buf ? shift @buf : <$reader>;
                   1240:
3.1       knu      1241:        my @words = split;
                   1242:        # Adding one is for the (single) space which follows $words[0].
                   1243:        my $rest = substr ($_, length ($words[0]) + 1);
                   1244:        if ($words[0] eq "E") {
                   1245:            next;
                   1246:        }
                   1247:        elsif ($words[0] eq "M") {
                   1248:            $lineNr++;
3.30      knu      1249:            (my $lrev = substr($_, 2, 13)) =~ y/ //d;
                   1250:            (my $lusr = substr($_, 16,  9)) =~ y/ //d;
                   1251:            my $line = substr($_, 36);
                   1252:            my $isCurrentRev = ($rev eq $lrev);
3.1       knu      1253:            # we should parse the date here ..
                   1254:            if ($lrev eq $oldLrev) {
3.30      knu      1255:                $revprint = sprintf('%-8s', '');
3.1       knu      1256:            }
                   1257:            else {
3.30      knu      1258:                $revprint = sprintf('%-8s', $lrev);
3.34    ! knu      1259:                $revprint =~ s`\S+`<a href="${scriptwhere}${barequery}#rev$&">$&</A>`;  # `
3.30      knu      1260:                $oldLusr = '';
3.1       knu      1261:            }
                   1262:            if ($lusr eq $oldLusr) {
3.30      knu      1263:                $usrprint = '';
3.1       knu      1264:            }
                   1265:            else {
                   1266:                $usrprint = $lusr;
                   1267:            }
                   1268:            $oldLrev = $lrev;
                   1269:            $oldLusr = $lusr;
3.12      knu      1270:
3.30      knu      1271:            # Set bold for text-based browsers only - graphical
                   1272:            # browsers show bold fonts a bit wider than regular fonts,
                   1273:            # so it looks irregular.
                   1274:            print "<b>" if ($isCurrentRev && $is_textbased);
                   1275:
3.32      knu      1276:            printf "%s%s %-8s %4d:",
3.30      knu      1277:                    $revprint,
                   1278:                    $isCurrentRev ? '!' : ' ',
                   1279:                    $usrprint,
3.32      knu      1280:                    $lineNr;
3.24      knu      1281:            print spacedHtmlText($line, $d{'tabstop'});
3.30      knu      1282:
                   1283:            print "</b>" if ($isCurrentRev && $is_textbased);
3.1       knu      1284:        }
                   1285:        elsif ($words[0] eq "ok") {
                   1286:            # We could complain about any text received after this, like the
                   1287:            # CVS command line client.  But for simplicity, we don't.
                   1288:        }
                   1289:        elsif ($words[0] eq "error") {
                   1290:            fatal ("500 Internal Error", "Error occured during annotate: <b>$_</b>");
                   1291:        }
                   1292:     }
                   1293:     if ($annTable) {
                   1294:        print "</table>";
                   1295:     }
                   1296:     else {
                   1297:        print "</pre>";
                   1298:     }
                   1299:     close ($reader) || warn "cannot close: $!";
                   1300:     wait;
                   1301: }
                   1302:
                   1303: ###############################
                   1304: # make Checkout
                   1305: ###############################
3.12      knu      1306: sub doCheckout($$) {
3.1       knu      1307:     my ($fullname, $rev) = @_;
                   1308:     my ($mimetype,$revopt);
                   1309:     my $fh = do {local(*FH);};
                   1310:
3.15      knu      1311:     if ($rev eq 'HEAD' || $rev eq '.') {
                   1312:        $rev = undef;
                   1313:     }
                   1314:
3.1       knu      1315:     # make sure the revisions a wellformed, for security
                   1316:     # reasons ..
3.15      knu      1317:     if (defined($rev) && $rev =~ /[^\w.]/) {
3.1       knu      1318:        &fatal("404 Not Found",
3.3       knu      1319:                "Malformed query \"$ENV{QUERY_STRING}\"");
3.1       knu      1320:     }
                   1321:
                   1322:     # get mimetype
                   1323:     if (defined($input{"content-type"}) && ($input{"content-type"} =~ /\S\/\S/)) {
                   1324:        $mimetype = $input{"content-type"}
                   1325:     }
                   1326:     else {
                   1327:        $mimetype = &getMimeTypeFromSuffix($fullname);
                   1328:     }
                   1329:
                   1330:     if (defined($rev)) {
                   1331:        $revopt = "-r$rev";
                   1332:        if ($use_moddate) {
                   1333:            readLog($fullname,$rev);
                   1334:            $moddate=$date{$rev};
                   1335:        }
                   1336:     }
                   1337:     else {
                   1338:        $revopt = "-rHEAD";
                   1339:        if ($use_moddate) {
                   1340:            readLog($fullname);
                   1341:            $moddate=$date{$symrev{HEAD}};
                   1342:        }
                   1343:     }
3.12      knu      1344:
3.1       knu      1345:     ### just for the record:
                   1346:     ### 'cvs co' seems to have a bug regarding single checkout of
                   1347:     ### directories/files having spaces in it;
                   1348:     ### this is an issue that should be resolved on cvs's side
                   1349:     #
                   1350:     # Safely for a child process to read from.
                   1351:     if (! open($fh, "-|")) { # child
                   1352:       open(STDERR, ">&STDOUT"); # Redirect stderr to stdout
3.15      knu      1353:       exec("cvs", "-Rld", $cvsroot, "co", "-p", $revopt, $where);
3.12      knu      1354:     }
3.1       knu      1355: #===================================================================
                   1356: #Checking out squid/src/ftp.c
                   1357: #RCS:  /usr/src/CVS/squid/src/ftp.c,v
                   1358: #VERS: 1.1.1.28.6.2
                   1359: #***************
                   1360:
                   1361:     # Parse CVS header
                   1362:     my ($revision, $filename, $cvsheader);
                   1363:     while(<$fh>) {
                   1364:        last if (/^\*\*\*\*/);
                   1365:        $revision = $1 if (/^VERS: (.*)$/);
                   1366:        if (/^Checking out (.*)$/) {
                   1367:                $filename = $1;
                   1368:                $filename =~ s/^\.\/*//;
1.12      fenner   1369:        }
3.1       knu      1370:        $cvsheader .= $_;
                   1371:     }
                   1372:     if ($filename ne $where) {
                   1373:        &fatal("500 Internal Error",
                   1374:               "Unexpected output from cvs co: $cvsheader"
                   1375:               . "<p><b>Check whether the directory $cvsroot/CVSROOT exists "
                   1376:               . "and the script has write-access to the CVSROOT/history "
                   1377:               . "file if it exists."
                   1378:               . "<br>The script needs to place lock files in the "
                   1379:               . "directory the file is in as well.</b>");
                   1380:     }
                   1381:     $| = 1;
                   1382:
                   1383:     if ($mimetype eq "text/x-cvsweb-markup") {
                   1384:        &cvswebMarkup($fh,$fullname,$revision);
                   1385:     }
                   1386:     else {
                   1387:        http_header($mimetype);
                   1388:        print <$fh>;
                   1389:     }
                   1390:     close($fh);
                   1391: }
                   1392:
3.12      knu      1393: sub cvswebMarkup($$$) {
3.1       knu      1394:     my ($filehandle,$fullname,$revision) = @_;
                   1395:     my ($pathname, $filename);
                   1396:
                   1397:     ($pathname = $where) =~ s/(Attic\/)?[^\/]*$//;
                   1398:     ($filename = $where) =~ s/^.*\///;
                   1399:     my ($fileurl) = urlencode($filename);
                   1400:
                   1401:     http_header();
                   1402:
3.12      knu      1403:     navigateHeader($scriptwhere, $pathname, $filename, $revision, "view");
3.1       knu      1404:     print "<HR noshade>";
                   1405:     print "<table width=\"100%\"><tr><td bgcolor=\"$markupLogColor\">";
                   1406:     print "File: ", &clickablePath($where, 1);
                   1407:     print "&nbsp;";
                   1408:     &download_link(urlencode($fileurl), $revision, "(download)");
                   1409:     if (!$defaultTextPlain) {
                   1410:        print "&nbsp;";
3.12      knu      1411:        &download_link(urlencode($fileurl), $revision, "(as text)",
3.1       knu      1412:               "text/plain");
                   1413:     }
                   1414:     print "<BR>\n";
                   1415:     if ($show_log_in_markup) {
                   1416:        readLog($fullname); #,$revision);
                   1417:        printLog($revision,0);
                   1418:     }
                   1419:     else {
                   1420:        print "Version: <B>$revision</B><BR>\n";
                   1421:        print "Tag: <B>", $input{only_with_tag}, "</b><br>\n" if
                   1422:            $input{only_with_tag};
                   1423:     }
                   1424:     print "</td></tr></table>";
                   1425:     my $url = download_url($fileurl, $revision, $mimetype);
                   1426:     print "<HR noshade>";
                   1427:     if ($mimetype =~ /^image/) {
                   1428:        print "<IMG SRC=\"$url$barequery\"><BR>";
                   1429:     }
3.23      knu      1430:     elsif ($mimetype =~ m%^application/pdf%) {
                   1431:        print "<EMBED SRC=\"$url$barequery\" WIDTH=\"100%\"><BR>";
                   1432:     }
3.1       knu      1433:     else {
                   1434:        print "<PRE>";
3.24      knu      1435:
                   1436:        # prefetch several lines
                   1437:        my @buf = head($filehandle);
                   1438:
                   1439:        my %d = scan_directives(@buf);
                   1440:
                   1441:        while (@buf || !eof($filehandle)) {
                   1442:            $_ = @buf ? shift @buf : <$filehandle>;
                   1443:
                   1444:            print spacedHtmlText($_, $d{'tabstop'});
1.12      fenner   1445:        }
3.1       knu      1446:        print "</PRE>";
                   1447:     }
1.12      fenner   1448: }
                   1449:
3.1       knu      1450: sub viewable($) {
                   1451:     my ($mimetype) = @_;
                   1452:
3.23      knu      1453:     $mimetype =~ m%^((text|image)/|application/pdf)% ;
3.1       knu      1454: }
                   1455:
                   1456: ###############################
                   1457: # Show Colored Diff
                   1458: ###############################
3.12      knu      1459: sub doDiff($$$$$$) {
3.1       knu      1460:        my($fullname, $r1, $tr1, $r2, $tr2, $f) = @_;
                   1461:         my $fh = do {local(*FH);};
                   1462:        my ($rev1, $rev2, $sym1, $sym2, @difftype, $diffname, $f1, $f2);
1.12      fenner   1463:
                   1464:        if ($r1 =~ /([^:]+)(:(.+))?/) {
                   1465:            $rev1 = $1;
                   1466:            $sym1 = $3;
                   1467:        }
3.1       knu      1468:        if ($r1 eq 'text') {
1.12      fenner   1469:            $rev1 = $tr1;
3.1       knu      1470:            $sym1 = "";
1.12      fenner   1471:        }
                   1472:        if ($r2 =~ /([^:]+)(:(.+))?/) {
                   1473:            $rev2 = $1;
                   1474:            $sym2 = $3;
                   1475:        }
3.1       knu      1476:        if ($r2 eq 'text') {
1.12      fenner   1477:            $rev2 = $tr2;
3.1       knu      1478:            $sym2 = "";
1.12      fenner   1479:        }
3.15      knu      1480:
3.1       knu      1481:        # make sure the revisions a wellformed, for security
                   1482:        # reasons ..
3.15      knu      1483:        if ($rev1 =~ /[^\w.]/ || $rev2 =~ /[^\w.]/) {
1.12      fenner   1484:            &fatal("404 Not Found",
3.3       knu      1485:                    "Malformed query \"$ENV{QUERY_STRING}\"");
1.12      fenner   1486:        }
                   1487: #
                   1488: # rev1 and rev2 are now both numeric revisions.
                   1489: # Thus we do a DWIM here and swap them if rev1 is after rev2.
                   1490: # XXX should we warn about the fact that we do this?
                   1491:        if (&revcmp($rev1,$rev2) > 0) {
3.1       knu      1492:            my ($tmp1, $tmp2) = ($rev1, $sym1);
1.12      fenner   1493:            ($rev1, $sym1) = ($rev2, $sym2);
                   1494:            ($rev2, $sym2) = ($tmp1, $tmp2);
                   1495:        }
3.1       knu      1496:        my $human_readable = 0;
1.12      fenner   1497:        if ($f eq 'c') {
3.1       knu      1498:            @difftype = qw{-c};
1.12      fenner   1499:            $diffname = "Context diff";
3.1       knu      1500:        }
                   1501:        elsif ($f eq 's') {
                   1502:            @difftype = qw{--side-by-side --width=164};
1.12      fenner   1503:            $diffname = "Side by Side";
3.1       knu      1504:        }
                   1505:        elsif ($f eq 'H') {
                   1506:            $human_readable = 1;
                   1507:            @difftype = qw{--unified=15};
                   1508:            $diffname = "Long Human readable";
                   1509:        }
                   1510:        elsif ($f eq 'h') {
                   1511:            @difftype =qw{-u};
                   1512:            $human_readable = 1;
                   1513:            $diffname = "Human readable";
                   1514:        }
                   1515:        elsif ($f eq 'u') {
                   1516:            @difftype = qw{-u};
1.12      fenner   1517:            $diffname = "Unidiff";
                   1518:        }
3.1       knu      1519:        else {
                   1520:            fatal ("400 Bad arguments", "Diff format $f not understood");
                   1521:        }
                   1522:
                   1523:        # apply special options
3.3       knu      1524:        if ($showfunc) {
3.15      knu      1525:            push @difftype, '-p' if $f =~ /^[cHhu]$/;
3.1       knu      1526:
3.3       knu      1527:            my($re1, $re2);
3.1       knu      1528:
3.3       knu      1529:            while (($re1, $re2) = each %funcline_regexp) {
                   1530:                if ($fullname =~ /$re1/) {
                   1531:                    push @difftype, '-F', '$re2';
                   1532:                    last;
3.1       knu      1533:                }
                   1534:            }
3.3       knu      1535:        }
                   1536:        if ($human_readable) {
3.1       knu      1537:            if ($hr_ignwhite) {
                   1538:                push @difftype, '-w';
                   1539:            }
                   1540:            if ($hr_ignkeysubst) {
                   1541:                push @difftype, '-kk';
                   1542:            }
                   1543:        }
                   1544:        if (! open($fh, "-|")) { # child
3.3       knu      1545:            open(STDERR, ">&STDOUT"); # Redirect stderr to stdout
                   1546:            exec("rcsdiff",@difftype,"-r$rev1","-r$rev2",$fullname);
3.1       knu      1547:        }
                   1548:        if ($human_readable) {
                   1549:            http_header();
                   1550:            &human_readable_diff($fh, $rev2);
3.25      knu      1551:            gzipclose();
3.1       knu      1552:            exit;
                   1553:        }
                   1554:        else {
                   1555:            http_header("text/plain");
1.44      knu      1556:        }
1.12      fenner   1557: #
                   1558: #===================================================================
                   1559: #RCS file: /home/ncvs/src/sys/netinet/tcp_output.c,v
                   1560: #retrieving revision 1.16
                   1561: #retrieving revision 1.17
                   1562: #diff -c -r1.16 -r1.17
                   1563: #*** /home/ncvs/src/sys/netinet/tcp_output.c     1995/11/03 22:08:08     1.16
                   1564: #--- /home/ncvs/src/sys/netinet/tcp_output.c     1995/12/05 17:46:35     1.17
                   1565: #
                   1566: # Ideas:
                   1567: # - nuke the stderr output if it's what we expect it to be
                   1568: # - Add "no differences found" if the diff command supplied no output.
                   1569: #
                   1570: #*** src/sys/netinet/tcp_output.c     1995/11/03 22:08:08     1.16
                   1571: #--- src/sys/netinet/tcp_output.c     1995/12/05 17:46:35     1.17 RELENG_2_1_0
                   1572: # (bogus example, but...)
                   1573: #
3.1       knu      1574:        if (grep { $_ eq '-u'} @difftype) {
1.12      fenner   1575:            $f1 = '---';
                   1576:            $f2 = '\+\+\+';
3.1       knu      1577:        }
                   1578:        else {
1.12      fenner   1579:            $f1 = '\*\*\*';
                   1580:            $f2 = '---';
                   1581:        }
3.1       knu      1582:        while (<$fh>) {
1.12      fenner   1583:            if (m|^$f1 $cvsroot|o) {
                   1584:                s|$cvsroot/||o;
                   1585:                if ($sym1) {
                   1586:                    chop;
                   1587:                    $_ .= " " . $sym1 . "\n";
                   1588:                }
3.1       knu      1589:            }
                   1590:            elsif (m|^$f2 $cvsroot|o) {
1.12      fenner   1591:                s|$cvsroot/||o;
                   1592:                if ($sym2) {
                   1593:                    chop;
                   1594:                    $_ .= " " . $sym2 . "\n";
                   1595:                }
                   1596:            }
                   1597:            print $_;
                   1598:        }
3.1       knu      1599:        close($fh);
1.12      fenner   1600: }
                   1601:
3.1       knu      1602: ###############################
                   1603: # Show Logs ..
                   1604: ###############################
3.12      knu      1605: sub getDirLogs($$@) {
3.1       knu      1606:     my ($cvsroot,$dirname,@otherFiles) = @_;
                   1607:     my ($state,$otherFiles,$tag, $file, $date, $branchpoint, $branch, $log);
                   1608:     my ($rev, $revision, $revwanted, $filename, $head, $author);
                   1609:
                   1610:     $tag = $input{only_with_tag};
                   1611:
                   1612:     my ($DirName) = "$cvsroot/$where";
                   1613:     my (@files, @filetags);
                   1614:     my $fh = do {local(*FH);};
                   1615:
                   1616:     push(@files, &safeglob("$DirName/*,v"));
                   1617:     push(@files, &safeglob("$DirName/Attic/*,v")) if (!$input{'hideattic'});
                   1618:     foreach $file (@otherFiles) {
                   1619:        push(@files, "$DirName/$file");
                   1620:     }
                   1621:
                   1622:     # just execute rlog if there are any files
3.12      knu      1623:     if ($#files < 0) {
3.1       knu      1624:        return;
                   1625:     }
                   1626:
                   1627:     if ($tag) {
                   1628:        #can't use -r<tag> as - is allowed in tagnames, but misinterpreated by rlog..
                   1629:        if (! open($fh, "-|")) {
3.7       knu      1630:                open(STDERR, '>/dev/null'); # rlog may complain; ignore.
                   1631:                exec('rlog', @files);
3.1       knu      1632:        }
                   1633:     }
                   1634:     else {
                   1635:        my $kidpid = open($fh, "-|");
                   1636:        if (! $kidpid) {
3.4       knu      1637:                open(STDERR, '>/dev/null'); # rlog may complain; ignore.
3.7       knu      1638:                exec('rlog', '-r', @files);
3.1       knu      1639:        }
                   1640:     }
                   1641:     $state = "start";
                   1642:     while (<$fh>) {
                   1643:        if ($state eq "start") {
                   1644:            #Next file. Initialize file variables
                   1645:            $rev = undef;
                   1646:            $revwanted = undef;
                   1647:            $branch = undef;
                   1648:            $branchpoint = undef;
                   1649:            $filename = undef;
                   1650:            $log = undef;
                   1651:            $revision = undef;
                   1652:            $branch = undef;
                   1653:            %symrev = ();
                   1654:            @filetags = ();
                   1655:            #jump to head state
                   1656:            $state = "head";
                   1657:        }
                   1658:        print "$state:$_" if ($verbose);
                   1659: again:
                   1660:        if ($state eq "head") {
                   1661:            #$rcsfile = $1 if (/^RCS file: (.+)$/); #not used (yet)
                   1662:            $filename = $1 if (/^Working file: (.+)$/);
                   1663:            $head = $1 if (/^head: (.+)$/);
                   1664:            $branch = $1 if (/^branch: (.+)$/);
                   1665:        }
                   1666:        if ($state eq "head" && /^symbolic names/) {
                   1667:            $state = "tags";
3.12      knu      1668:            ($branch = $head) =~ s/\.\d+$// if (!defined($branch));
3.1       knu      1669:            $branch =~ s/(\.?)(\d+)$/${1}0.$2/;
                   1670:            $symrev{MAIN} = $branch;
                   1671:            $symrev{HEAD} = $branch;
                   1672:            $alltags{MAIN} = 1;
                   1673:            $alltags{HEAD} = 1;
                   1674:            push (@filetags, "MAIN", "HEAD");
                   1675:            next;
                   1676:        }
                   1677:        if ($state eq "tags" &&
                   1678:                            /^\s+(.+):\s+([\d\.]+)\s+$/) {
                   1679:            push (@filetags, $1);
                   1680:            $symrev{$1} = $2;
                   1681:            $alltags{$1} = 1;
                   1682:            next;
                   1683:        }
                   1684:        if ($state eq "tags" && /^\S/) {
                   1685:            if (defined($tag) && (defined($symrev{$tag}) || $tag eq "HEAD")) {
                   1686:                $revwanted = $tag eq "HEAD" ? $symrev{"MAIN"} : $symrev{$tag};
                   1687:                ($branch = $revwanted) =~ s/\b0\.//;
                   1688:                ($branchpoint = $branch) =~ s/\.?\d+$//;
                   1689:                $revwanted = undef if ($revwanted ne $branch);
                   1690:            }
                   1691:            elsif (defined($tag) && $tag ne "HEAD") {
                   1692:                print "Tag not found, skip this file" if ($verbose);
                   1693:                $state = "skip";
                   1694:                next;
                   1695:            }
                   1696:            foreach my $tagfound (@filetags) {
                   1697:                $tags{$tagfound} = 1;
                   1698:            }
                   1699:            $state = "head";
                   1700:            goto again;
                   1701:        }
3.32      knu      1702:        if ($state eq "head" && /$LOG_REVSEPARATOR/o) {
3.1       knu      1703:            $state = "log";
                   1704:            $rev = undef;
                   1705:            $date = undef;
                   1706:            $log = "";
                   1707:            # Try to reconstruct the relative filename if RCS spits out a full path
                   1708:            $filename =~ s%^\Q$DirName\E/%%;
                   1709:            next;
                   1710:        }
                   1711:        if ($state eq "log") {
3.32      knu      1712:            if (/$LOG_REVSEPARATOR/o || /$LOG_FILESEPARATOR/o) {
3.1       knu      1713:                # End of a log entry.
                   1714:                my $revbranch;
                   1715:                ($revbranch = $rev) =~ s/\.\d+$//;
                   1716:                print "$filename $rev Wanted: $revwanted "
                   1717:                    . "Revbranch: $revbranch Branch: $branch "
                   1718:                    . "Branchpoint: $branchpoint\n" if ($verbose);
                   1719:                if (!defined($revwanted) && defined($branch)
                   1720:                    && $branch eq $revbranch || !defined($tag)) {
                   1721:                    print "File revision $rev found for branch $branch\n"
                   1722:                        if ($verbose);
                   1723:                    $revwanted = $rev;
                   1724:                }
                   1725:                if (defined($revwanted) ? $rev eq $revwanted :
                   1726:                    defined($branchpoint) ? $rev eq $branchpoint :
                   1727:                    0 && ($rev eq $head)) { # Don't think head is needed here..
                   1728:                    print "File info $rev found for $filename\n" if ($verbose);
                   1729:                    my @finfo = ($rev,$date,$log,$author,$filename);
                   1730:                    my ($name);
                   1731:                    ($name = $filename) =~ s%/.*%%;
                   1732:                    $fileinfo{$name} = [ @finfo ];
                   1733:                    $state = "done" if ($rev eq $revwanted);
                   1734:                }
                   1735:                $rev = undef;
                   1736:                $date = undef;
                   1737:                $log = "";
                   1738:            }
                   1739:            elsif (!defined($date) && m|^date:\s+(\d+)/(\d+)/(\d+)\s+(\d+):(\d+):(\d+);|) {
                   1740:                my $yr = $1;
                   1741:                # damn 2-digit year routines :-)
                   1742:                if ($yr > 100) {
                   1743:                    $yr -= 1900;
                   1744:                }
                   1745:                $date = &Time::Local::timegm($6,$5,$4,$3,$2 - 1,$yr);
                   1746:                ($author) = /author: ([^;]+)/;
                   1747:                $state = "log";
                   1748:                $log = '';
                   1749:                next;
                   1750:            }
                   1751:            elsif (!defined($rev) && m/^revision (.*)$/) {
                   1752:                $rev = $1;
                   1753:                next;
                   1754:            }
                   1755:            else {
                   1756:                $log = $log . $_;
                   1757:            }
                   1758:        }
3.32      knu      1759:        if (/$LOG_FILESEPARATOR/o) {
3.1       knu      1760:            $state = "start";
                   1761:            next;
                   1762:        }
                   1763:     }
                   1764:     if ($. == 0) {
3.12      knu      1765:        fatal("500 Internal Error",
3.1       knu      1766:              "Failed to spawn GNU rlog on <em>'".join(", ", @files)."'</em><p>did you set the <b>\$ENV{PATH}</b> in your configuration file correctly ?");
                   1767:     }
                   1768:     close($fh);
                   1769: }
                   1770:
3.12      knu      1771: sub readLog($;$) {
3.1       knu      1772:        my($fullname,$revision) = @_;
                   1773:        my ($symnames, $head, $rev, $br, $brp, $branch, $branchrev);
                   1774:        my $fh = do {local(*FH);};
                   1775:
                   1776:        if (defined($revision)) {
                   1777:            $revision = "-r$revision";
                   1778:        }
                   1779:        else {
                   1780:            $revision = "";
                   1781:        }
                   1782:
                   1783:        undef %symrev;
                   1784:        undef %revsym;
                   1785:        undef @allrevisions;
                   1786:        undef %date;
                   1787:        undef %author;
                   1788:        undef %state;
                   1789:        undef %difflines;
                   1790:        undef %log;
1.12      fenner   1791:
                   1792:        print("Going to rlog '$fullname'\n") if ($verbose);
3.1       knu      1793:        if (! open($fh, "-|")) { # child
                   1794:                if ($revision ne '') {
                   1795:                        exec("rlog",$revision,$fullname);
                   1796:                }
                   1797:                else {
                   1798:                        exec("rlog",$fullname);
                   1799:                }
1.44      knu      1800:        }
3.1       knu      1801:        while (<$fh>) {
1.1       jfieber  1802:            print if ($verbose);
                   1803:            if ($symnames) {
                   1804:                if (/^\s+([^:]+):\s+([\d\.]+)/) {
                   1805:                    $symrev{$1} = $2;
3.1       knu      1806:                }
                   1807:                else {
1.1       jfieber  1808:                    $symnames = 0;
                   1809:                }
3.1       knu      1810:            }
                   1811:            elsif (/^head:\s+([\d\.]+)/) {
                   1812:                $head = $1;
                   1813:            }
                   1814:            elsif (/^branch:\s+([\d\.]+)/) {
                   1815:                $curbranch = $1;
                   1816:            }
                   1817:            elsif (/^symbolic names/) {
1.1       jfieber  1818:                $symnames = 1;
3.1       knu      1819:            }
                   1820:            elsif (/^-----/) {
1.1       jfieber  1821:                last;
                   1822:            }
                   1823:        }
3.1       knu      1824:        ($curbranch = $head) =~ s/\.\d+$// if (!defined($curbranch));
1.7       fenner   1825:
1.1       jfieber  1826: # each log entry is of the form:
                   1827: # ----------------------------
                   1828: # revision 3.7.1.1
                   1829: # date: 1995/11/29 22:15:52;  author: fenner;  state: Exp;  lines: +5 -3
                   1830: # log info
                   1831: # ----------------------------
                   1832:        logentry:
3.32      knu      1833:        while (!/$LOG_FILESEPARATOR/o) {
3.1       knu      1834:            $_ = <$fh>;
1.12      fenner   1835:            last logentry if (!defined($_));    # EOF
1.1       jfieber  1836:            print "R:", $_ if ($verbose);
                   1837:            if (/^revision ([\d\.]+)/) {
                   1838:                $rev = $1;
3.1       knu      1839:                unshift(@allrevisions,$rev);
                   1840:            }
3.32      knu      1841:            elsif (/$LOG_FILESEPARATOR/o || /$LOG_REVSEPARATOR/o) {
1.1       jfieber  1842:                next logentry;
3.1       knu      1843:            }
                   1844:            else {
1.12      fenner   1845:                # The rlog output is syntactically ambiguous.  We must
                   1846:                # have guessed wrong about where the end of the last log
                   1847:                # message was.
                   1848:                # Since this is likely to happen when people put rlog output
                   1849:                # in their commit messages, don't even bother keeping
                   1850:                # these lines since we don't know what revision they go with
                   1851:                # any more.
                   1852:                next logentry;
                   1853: #              &fatal("500 Internal Error","Error parsing RCS output: $_");
1.1       jfieber  1854:            }
3.1       knu      1855:            $_ = <$fh>;
1.1       jfieber  1856:            print "D:", $_ if ($verbose);
3.1       knu      1857:            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+-]+))?|) {
                   1858:                my $yr = $1;
                   1859:                 # damn 2-digit year routines :-)
                   1860:                 if ($yr > 100) {
                   1861:                     $yr -= 1900;
                   1862:                 }
                   1863:                $date{$rev} = &Time::Local::timegm($6,$5,$4,$3,$2 - 1,$yr);
1.1       jfieber  1864:                $author{$rev} = $7;
1.9       fenner   1865:                $state{$rev} = $8;
3.1       knu      1866:                $difflines{$rev} = $10;
                   1867:            }
                   1868:            else {
1.1       jfieber  1869:                &fatal("500 Internal Error", "Error parsing RCS output: $_");
                   1870:            }
                   1871:            line:
3.1       knu      1872:            while (<$fh>) {
1.1       jfieber  1873:                print "L:", $_ if ($verbose);
                   1874:                next line if (/^branches:\s/);
3.32      knu      1875:                last line if (/$LOG_FILESEPARATOR/o || /$LOG_REVSEPARATOR/o);
1.1       jfieber  1876:                $log{$rev} .= $_;
                   1877:            }
                   1878:            print "E:", $_ if ($verbose);
                   1879:        }
3.1       knu      1880:        close($fh);
1.1       jfieber  1881:        print "Done reading RCS file\n" if ($verbose);
3.1       knu      1882:
                   1883:        @revorder = reverse sort {revcmp($a,$b)} @allrevisions;
                   1884:        print "Done sorting revisions",join(" ",@revorder),"\n" if ($verbose);
                   1885:
1.1       jfieber  1886: #
                   1887: # HEAD is an artificial tag which is simply the highest tag number on the main
1.8       fenner   1888: # branch, unless there is a branch tag in the RCS file in which case it's the
                   1889: # highest revision on that branch.  Find it by looking through @revorder; it
                   1890: # is the first commit listed on the appropriate branch.
3.1       knu      1891: # This is not neccesary the same revision as marked as head in the RCS file.
                   1892:        my $headrev = $curbranch || "1";
                   1893:        ($symrev{"MAIN"} = $headrev) =~ s/(\.?)(\d+)$/${1}0.$2/;
1.1       jfieber  1894:        revision:
3.1       knu      1895:        foreach $rev (@revorder) {
                   1896:            if ($rev =~ /^(\S*)\.\d+$/ && $headrev eq $1) {
                   1897:                $symrev{"HEAD"} = $rev;
1.1       jfieber  1898:                last revision;
                   1899:            }
                   1900:        }
3.1       knu      1901:        ($symrev{"HEAD"} = $headrev) =~ s/\.\d+$//
                   1902:             if (!defined($symrev{"HEAD"}));
1.1       jfieber  1903:        print "Done finding HEAD\n" if ($verbose);
                   1904: #
                   1905: # Now that we know all of the revision numbers, we can associate
                   1906: # absolute revision numbers with all of the symbolic names, and
                   1907: # pass them to the form so that the same association doesn't have
                   1908: # to be built then.
                   1909: #
3.1       knu      1910:        undef @branchnames;
                   1911:        undef %branchpoint;
                   1912:        undef $sel;
                   1913:
                   1914:        foreach (reverse sort keys %symrev) {
1.1       jfieber  1915:            $rev = $symrev{$_};
3.1       knu      1916:            if ($rev =~ /^((.*)\.)?\b0\.(\d+)$/) {
1.7       fenner   1917:                push(@branchnames, $_);
1.1       jfieber  1918:                #
                   1919:                # A revision number of A.B.0.D really translates into
                   1920:                # "the highest current revision on branch A.B.D".
                   1921:                #
                   1922:                # If there is no branch A.B.D, then it translates into
                   1923:                # the head A.B .
                   1924:                #
3.1       knu      1925:                # This reasoning also applies to the main branch A.B,
                   1926:                # with the branch number 0.A, with the exception that
                   1927:                # it has no head to translate to if there is nothing on
                   1928:                # the branch, but I guess this can never happen?
                   1929:                # (the code below gracefully forgets about the branch
                   1930:                # if it should happen)
                   1931:                #
                   1932:                $head = defined($2) ? $2 : "";
1.1       jfieber  1933:                $branch = $3;
3.1       knu      1934:                $branchrev = $head . ($head ne "" ? "." : "") . $branch;
                   1935:                my $regex;
                   1936:                ($regex = $branchrev) =~ s/\./\\./g;
1.1       jfieber  1937:                $rev = $head;
                   1938:
                   1939:                revision:
3.1       knu      1940:                foreach my $r (@revorder) {
                   1941:                    if ($r =~ /^${regex}\b/) {
                   1942:                        $rev = $branchrev;
1.1       jfieber  1943:                        last revision;
                   1944:                    }
                   1945:                }
3.1       knu      1946:                next if ($rev eq "");
                   1947:                if ($rev ne $head && $head ne "") {
1.8       fenner   1948:                    $branchpoint{$head} .= ", " if ($branchpoint{$head});
                   1949:                    $branchpoint{$head} .= $_;
                   1950:                }
1.1       jfieber  1951:            }
3.1       knu      1952:            $revsym{$rev} .= ", " if ($revsym{$rev});
                   1953:            $revsym{$rev} .= $_;
1.1       jfieber  1954:            $sel .= "<OPTION VALUE=\"${rev}:${_}\">$_\n";
                   1955:        }
                   1956:        print "Done associating revisions with branches\n" if ($verbose);
3.1       knu      1957:
                   1958:        my ($onlyonbranch, $onlybranchpoint);
                   1959:        if ($onlyonbranch = $input{'only_with_tag'}) {
                   1960:            $onlyonbranch = $symrev{$onlyonbranch};
                   1961:            if ($onlyonbranch =~ s/\b0\.//) {
                   1962:                ($onlybranchpoint = $onlyonbranch) =~ s/\.\d+$//;
                   1963:            }
                   1964:             else {
                   1965:                $onlybranchpoint = $onlyonbranch;
                   1966:            }
                   1967:            if (!defined($onlyonbranch) || $onlybranchpoint eq "") {
                   1968:                fatal("404 Tag not found","Tag $input{'only_with_tag'} not defined");
                   1969:            }
1.8       fenner   1970:        }
1.1       jfieber  1971:
3.1       knu      1972:        undef @revisions;
                   1973:
                   1974:        foreach (@allrevisions) {
1.7       fenner   1975:            ($br = $_) =~ s/\.\d+$//;
3.1       knu      1976:            ($brp = $br) =~ s/\.\d+$//;
1.7       fenner   1977:            next if ($onlyonbranch && $br ne $onlyonbranch &&
3.1       knu      1978:                                        $_ ne $onlybranchpoint);
                   1979:            unshift(@revisions,$_);
                   1980:        }
                   1981:
                   1982:        if ($logsort eq "date") {
                   1983:            # Sort the revisions in commit order an secondary sort on revision
                   1984:            # (secondary sort needed for imported sources, or the first main
                   1985:            # revision gets before the same revision on the 1.1.1 branch)
                   1986:            @revdisplayorder = sort {$date{$b} <=> $date{$a} || -revcmp($a, $b)} @revisions;
                   1987:        }
                   1988:         elsif ($logsort eq "rev") {
                   1989:            # Sort the revisions in revision order, highest first
                   1990:            @revdisplayorder = reverse sort {revcmp($a,$b)} @revisions;
                   1991:        }
                   1992:         else {
                   1993:            # No sorting. Present in the same order as rlog / cvs log
                   1994:            @revdisplayorder = @revisions;
                   1995:        }
                   1996:
                   1997: }
                   1998:
                   1999: sub printLog($;$) {
                   2000:        my ($link, $br, $brp);
                   2001:        ($_,$link) = @_;
                   2002:        ($br = $_) =~ s/\.\d+$//;
                   2003:        ($brp = $br) =~ s/\.?\d+$//;
                   2004:        my ($isDead, $prev);
                   2005:
                   2006:        $link = 1 if (!defined($link));
                   2007:        $isDead = ($state{$_} eq "dead");
                   2008:
                   2009:        if ($link && !$isDead) {
                   2010:            my ($filename);
                   2011:            ($filename = $where) =~ s/^.*\///;
                   2012:            my ($fileurl) = urlencode($filename);
1.4       fenner   2013:            print "<a NAME=\"rev$_\"></a>";
3.1       knu      2014:            if (defined($revsym{$_})) {
                   2015:                foreach my $sym (split(", ", $revsym{$_})) {
                   2016:                    print "<a NAME=\"$sym\"></a>";
                   2017:                }
1.4       fenner   2018:            }
3.1       knu      2019:            if (defined($revsym{$br}) && $revsym{$br} && !defined($nameprinted{$br})) {
                   2020:                foreach my $sym (split(", ", $revsym{$br})) {
1.4       fenner   2021:                    print "<a NAME=\"$sym\"></a>";
                   2022:                }
3.1       knu      2023:                $nameprinted{$br} = 1;
1.4       fenner   2024:            }
3.1       knu      2025:            print "\n Revision ";
                   2026:            &download_link($fileurl, $_, $_,
                   2027:                $defaultViewable ? "text/x-cvsweb-markup" : undef);
                   2028:            if ($defaultViewable) {
                   2029:                print " / ";
                   2030:                &download_link($fileurl, $_, "(download)", $mimetype);
                   2031:            }
                   2032:            if (not $defaultTextPlain) {
                   2033:                print " / ";
3.12      knu      2034:                &download_link($fileurl, $_, "(as text)",
3.1       knu      2035:                           "text/plain");
                   2036:            }
                   2037:            if (!$defaultViewable) {
                   2038:                print " / ";
                   2039:                &download_link($fileurl, $_, "(view)", "text/x-cvsweb-markup");
                   2040:            }
                   2041:            if ($allow_annotate) {
                   2042:                print " - <a href=\"" . $scriptname . "/" . urlencode($where) . "?annotate=$_$barequery\">";
                   2043:                print "annotate</a>";
                   2044:            }
                   2045:            # Plus a select link if enabled, and this version isn't selected
                   2046:            if ($allow_version_select) {
                   2047:                if ((!defined($input{"r1"}) || $input{"r1"} ne $_)) {
                   2048:                    print " - <A HREF=\"${scriptwhere}?r1=$_$barequery" .
                   2049:                        "\">[select for diffs]</A>\n";
                   2050:                }
                   2051:                else {
                   2052:                    print " - <b>[selected]</b>";
                   2053:                }
                   2054:            }
                   2055:        }
                   2056:        else {
                   2057:            print "Revision <B>$_</B>";
                   2058:        }
                   2059:        if (/^1\.1\.1\.\d+$/) {
                   2060:            print " <i>(vendor branch)</i>";
                   2061:        }
                   2062:        if (defined @mytz) {
                   2063:            my ($est) = $mytz[(localtime($date{$_}))[8]];
                   2064:            print ", <i>" . scalar localtime($date{$_}) . " $est</i> (";
                   2065:        } else {
                   2066:            print ", <i>" . scalar gmtime($date{$_}) . " UTC</i> (";
                   2067:        }
                   2068:        print readableTime(time() - $date{$_},1) . " ago)";
                   2069:        print " by ";
                   2070:        print "<i>" . $author{$_} . "</i>\n";
                   2071:        print "<BR>Branch: <b>",$link?link_tags($revsym{$br}):$revsym{$br},"</b>\n"
                   2072:            if ($revsym{$br});
                   2073:        print "<BR>CVS Tags: <b>",$link?link_tags($revsym{$_}):$revsym{$_},"</b>"
                   2074:            if ($revsym{$_});
                   2075:        print "<BR>Branch point for: <b>",$link?link_tags($branchpoint{$_}):$branchpoint{$_},"</b>\n"
                   2076:            if ($branchpoint{$_});
                   2077:        # Find the previous revision
                   2078:        my @prevrev = split(/\./, $_);
                   2079:        do {
                   2080:            if (--$prevrev[$#prevrev] <= 0) {
1.1       jfieber  2081:                # If it was X.Y.Z.1, just make it X.Y
3.1       knu      2082:                pop(@prevrev);
                   2083:                pop(@prevrev);
                   2084:            }
                   2085:            $prev = join(".", @prevrev);
                   2086:        } until (defined($date{$prev}) || $prev eq "");
                   2087:        if ($prev ne "") {
                   2088:            if ($difflines{$_}) {
                   2089:                print "<BR>Changes since <b>$prev: $difflines{$_} lines</b>";
                   2090:            }
                   2091:        }
                   2092:        if ($isDead) {
                   2093:            print "<BR><B><I>FILE REMOVED</I></B>\n";
                   2094:        }
                   2095:        elsif ($link) {
                   2096:            my %diffrev = ();
                   2097:            $diffrev{$_} = 1;
                   2098:            $diffrev{""} = 1;
                   2099:            print "<BR>Diff";
                   2100:            #
                   2101:            # Offer diff to previous revision
                   2102:            if ($prev) {
                   2103:                $diffrev{$prev} = 1;
                   2104:                print " to previous <A HREF=\"${scriptwhere}.diff?r1=$prev";
                   2105:                print "&amp;r2=$_" . $barequery . "\">$prev</A>\n";
                   2106:                if (!$hr_default) { # offer a human readable version if not default
                   2107:                    print "(<A HREF=\"${scriptwhere}.diff?r1=$prev";
                   2108:                    print "&amp;r2=$_" . $barequery . "&amp;f=h\">colored</A>)\n";
                   2109:                }
                   2110:            }
                   2111:            #
                   2112:            # Plus, if it's on a branch, and it's not a vendor branch,
                   2113:            # offer a diff with the branch point.
                   2114:            if ($revsym{$brp} && !/^1\.1\.1\.\d+$/ && !defined($diffrev{$brp})) {
                   2115:                print " to branchpoint <A HREF=\"${scriptwhere}.diff?r1=$brp";
                   2116:                print "&amp;r2=$_" . $barequery . "\">$brp</A>\n";
                   2117:                if (!$hr_default) { # offer a human readable version if not default
                   2118:                print "(<A HREF=\"${scriptwhere}.diff?r1=$brp";
                   2119:                print "&amp;r2=$_" . $barequery . "&amp;f=h\">colored</A>)\n";
1.1       jfieber  2120:                }
                   2121:            }
3.1       knu      2122:            #
                   2123:            # Plus, if it's on a branch, and it's not a vendor branch,
                   2124:            # offer to diff with the next revision of the higher branch.
                   2125:            # (e.g. change gets committed and then brought
                   2126:            # over to -stable)
                   2127:            if (/^\d+\.\d+\.\d+/ && !/^1\.1\.1\.\d+$/) {
                   2128:                my ($i,$nextmain);
                   2129:                for ($i = 0; $i < $#revorder && $revorder[$i] ne $_; $i++){}
                   2130:                my (@tmp2) = split(/\./, $_);
                   2131:                for ($nextmain = ""; $i > 0; $i--) {
                   2132:                    my ($next) = $revorder[$i-1];
                   2133:                    my (@tmp1) = split(/\./, $next);
1.1       jfieber  2134:                    if ($#tmp1 < $#tmp2) {
3.1       knu      2135:                        $nextmain = $next;
                   2136:                        last;
                   2137:                    }
                   2138:                    # Only the highest version on a branch should have
                   2139:                    # a diff for the "next main".
                   2140:                    last if (join(".",@tmp1[0..$#tmp1-1])
                   2141:                             eq join(".",@tmp2[0..$#tmp1-1]));
                   2142:                }
                   2143:                if (!defined($diffrev{$nextmain})) {
                   2144:                    $diffrev{$nextmain} = 1;
                   2145:                    print " next main <A HREF=\"${scriptwhere}.diff?r1=$nextmain";
                   2146:                    print "&amp;r2=$_" . $barequery .
                   2147:                        "\">$nextmain</A>\n";
                   2148:                    if (!$hr_default) { # offer a human readable version if not default
                   2149:                        print "(<A HREF=\"${scriptwhere}.diff?r1=$nextmain";
                   2150:                        print "&amp;r2=$_" . $barequery .
                   2151:                            "&amp;f=h\">colored</A>)\n";
1.1       jfieber  2152:                    }
                   2153:                }
                   2154:            }
3.1       knu      2155:            # Plus if user has selected only r1, then present a link
                   2156:            # to make a diff to that revision
                   2157:            if (defined($input{"r1"}) && !defined($diffrev{$input{"r1"}})) {
                   2158:                $diffrev{$input{"r1"}} = 1;
                   2159:                print " to selected <A HREF=\"${scriptwhere}.diff?"
                   2160:                        . "r1=$input{'r1'}&amp;r2=$_" . $barequery
                   2161:                        . "\">$input{'r1'}</A>\n";
                   2162:                if (!$hr_default) { # offer a human readable version if not default
                   2163:                    print "(<A HREF=\"${scriptwhere}.diff?r1=$input{'r1'}";
                   2164:                    print "&amp;r2=$_" . $barequery .
                   2165:                        "&amp;f=h\">colored</A>)\n";
                   2166:
                   2167:                }
1.9       fenner   2168:            }
1.1       jfieber  2169:        }
3.1       knu      2170:        print "<PRE>\n";
                   2171:        print &htmlify($log{$_}, 1);
                   2172:        print "</PRE>\n";
                   2173: }
                   2174:
3.12      knu      2175: sub doLog($) {
3.1       knu      2176:        my($fullname) = @_;
                   2177:        my ($diffrev, $upwhere, $filename, $backurl);
3.12      knu      2178:
3.1       knu      2179:        readLog($fullname);
                   2180:
                   2181:         html_header("CVS log for $where");
                   2182:        ($upwhere = $where) =~ s|(Attic/)?[^/]+$||;
                   2183:         ($filename = $where) =~ s|^.*/||;
                   2184:         $backurl = $scriptname . "/" . urlencode($upwhere) . $query;
                   2185:        print &link($backicon, "$backurl#$filename"),
                   2186:               " <b>Up to ", &clickablePath($upwhere, 1), "</b><p>\n";
3.3       knu      2187:        print <<EOF;
                   2188: <A HREF="#diff">Request diff between arbitrary revisions</A>
                   2189: <HR NOSHADE>
                   2190: EOF
3.1       knu      2191:        if ($curbranch) {
3.3       knu      2192:            print "Default branch: ", ($revsym{$curbranch} || $curbranch);
3.1       knu      2193:        }
                   2194:        else {
                   2195:            print "No default branch";
                   2196:        }
                   2197:        print "<BR>\n";
                   2198:        if ($input{only_with_tag}) {
                   2199:            print "Current tag: $input{only_with_tag}<BR>\n";
                   2200:        }
                   2201:
                   2202:        undef %nameprinted;
                   2203:
                   2204:        for (my $i = 0; $i <= $#revdisplayorder; $i++) {
                   2205:            print "<HR size=1 NOSHADE>";
                   2206:            printLog($revdisplayorder[$i]);
                   2207:        }
                   2208:
                   2209:         print "<HR NOSHADE>";
1.1       jfieber  2210:        print "<A NAME=diff>\n";
                   2211:        print "This form allows you to request diff's between any two\n";
                   2212:        print "revisions of a file.  You may select a symbolic revision\n";
                   2213:        print "name using the selection box or you may type in a numeric\n";
                   2214:        print "name using the type-in text box.\n";
                   2215:        print "</A><P>\n";
3.1       knu      2216:        print "<FORM METHOD=\"GET\" ACTION=\"${scriptwhere}.diff\" NAME=\"diff_select\">\n";
                   2217:         foreach (@stickyvars) {
                   2218:            print "<INPUT TYPE=HIDDEN NAME=\"$_\" VALUE=\"$input{$_}\">\n"
                   2219:                if (defined($input{$_})
3.23      knu      2220:                    && ((!defined($DEFAULTVALUE{$_})
                   2221:                         || $input{$_} ne $DEFAULTVALUE{$_})
                   2222:                        && $input{$_} ne ""));
3.1       knu      2223:        }
3.21      knu      2224:        print "<TABLE><TR>\n";
                   2225:        print "<TD align=right>Diffs between \n";
1.1       jfieber  2226:        print "<SELECT NAME=\"r1\">\n";
                   2227:        print "<OPTION VALUE=\"text\" SELECTED>Use Text Field\n";
                   2228:        print $sel;
                   2229:        print "</SELECT>\n";
3.1       knu      2230:        $diffrev = $revdisplayorder[$#revdisplayorder];
                   2231:        $diffrev = $input{"r1"} if (defined($input{"r1"}));
3.21      knu      2232:        print "<INPUT TYPE=\"TEXT\" SIZE=\"$inputTextSize\" NAME=\"tr1\" VALUE=\"$diffrev\" onChange='document.diff_select.r1.selectedIndex=0'></TD>";
                   2233:        print "<TD><BR></TD></TR>\n";
                   2234:        print "<TR><TD align=right>and \n";
1.1       jfieber  2235:        print "<SELECT NAME=\"r2\">\n";
                   2236:        print "<OPTION VALUE=\"text\" SELECTED>Use Text Field\n";
                   2237:        print $sel;
                   2238:        print "</SELECT>\n";
3.1       knu      2239:        $diffrev = $revdisplayorder[0];
                   2240:        $diffrev = $input{"r2"} if (defined($input{"r2"}));
3.21      knu      2241:        print "<INPUT TYPE=\"TEXT\" SIZE=\"$inputTextSize\" NAME=\"tr2\" VALUE=\"$diffrev\" onChange='document.diff_select.r2.selectedIndex=0'></TD>";
                   2242:        print "<TD><INPUT TYPE=SUBMIT VALUE=\"  Get Diffs  \"></TD>\n";
1.1       jfieber  2243:        print "</FORM>\n";
3.21      knu      2244:        print "</TR></TABLE>\n";
1.7       fenner   2245:        print "<HR noshade>\n";
3.21      knu      2246:        print "<TABLE>";
                   2247:        print "<FORM METHOD=\"GET\" ACTION=\"$scriptwhere\">\n";
                   2248:         print "<TR><TD align=right>Preferred Diff type:</TD>";
                   2249:         print "<TD>";
                   2250:        printDiffSelect($use_java_script);
                   2251:        print "</TD><TD></TD></TR>\n";
3.1       knu      2252:         if (@branchnames) {
3.21      knu      2253:            print "<TR><TD align=right>View only Branch:</TD>";
                   2254:            print "<TD>";
3.1       knu      2255:            print "<A name=branch></A>\n";
                   2256:            print "<SELECT NAME=\"only_with_tag\"";
                   2257:            print " onchange=\"submit()\"" if ($use_java_script);
                   2258:            print ">\n";
                   2259:            print "<OPTION VALUE=\"\"";
                   2260:            print " SELECTED" if (defined($input{"only_with_tag"}) &&
                   2261:                $input{"only_with_tag"} eq "");
                   2262:            print ">Show all branches\n";
                   2263:            foreach (reverse sort @branchnames) {
1.9       fenner   2264:                print "<OPTION";
3.1       knu      2265:                print " SELECTED" if (defined($input{"only_with_tag"})
                   2266:                        && $input{"only_with_tag"} eq $_);
1.9       fenner   2267:                print ">${_}\n";
3.1       knu      2268:            }
3.21      knu      2269:            print "</SELECT></TD><TD></TD></TR>\n";
1.7       fenner   2270:        }
3.1       knu      2271:        foreach (@stickyvars) {
3.21      knu      2272:            next if ($_ eq "f");
3.1       knu      2273:            next if ($_ eq "only_with_tag");
                   2274:            next if ($_ eq "logsort");
                   2275:            print "<INPUT TYPE=HIDDEN NAME=\"$_\" VALUE=\"$input{$_}\">\n"
3.23      knu      2276:                if (defined($input{$_})
                   2277:                    && (!defined($DEFAULTVALUE{$_})
                   2278:                        || $input{$_} ne $DEFAULTVALUE{$_})
3.1       knu      2279:                    && $input{$_} ne "");
                   2280:        }
3.21      knu      2281:        print "<TR><TD align=right>";
                   2282:        print "<A name=logsort></A>\n";
                   2283:        print "Sort log by:</TD>";
                   2284:        print "<TD><SELECT NAME=\"logsort\"";
3.1       knu      2285:        print " onchange=\"submit()\"" if ($use_java_script);
                   2286:        print ">\n";
                   2287:        print "<OPTION VALUE=cvs",$logsort eq "cvs" ? " SELECTED" : "", ">Not sorted";
                   2288:        print "<OPTION VALUE=date",$logsort eq "date" ? " SELECTED" : "", ">Commit date";
                   2289:        print "<OPTION VALUE=rev",$logsort eq "rev" ? " SELECTED" : "", ">Revision";
3.21      knu      2290:        print "</SELECT></TD>";
                   2291:        print "<TD><INPUT TYPE=SUBMIT VALUE=\"  Set  \"></TD>";
1.7       fenner   2292:        print "</FORM>\n";
3.21      knu      2293:        print "</TR></TABLE>";
1.2       jfieber  2294:         print &html_footer;
1.1       jfieber  2295:        print "</BODY></HTML>\n";
1.10      wosch    2296: }
                   2297:
3.12      knu      2298: sub flush_diff_rows($$$$) {
3.1       knu      2299:     my $j;
                   2300:     my ($leftColRef,$rightColRef,$leftRow,$rightRow) = @_;
                   2301:     if ($state eq "PreChangeRemove") {          # we just got remove-lines before
                   2302:       for ($j = 0 ; $j < $leftRow; $j++) {
                   2303:           print  "<tr><td bgcolor=\"$diffcolorRemove\">@$leftColRef[$j]</td>";
                   2304:           print  "<td bgcolor=\"$diffcolorEmpty\">&nbsp;</td></tr>\n";
                   2305:       }
                   2306:     }
                   2307:     elsif ($state eq "PreChange") {             # state eq "PreChange"
                   2308:       # we got removes with subsequent adds
                   2309:       for ($j = 0; $j < $leftRow || $j < $rightRow ; $j++) {  # dump out both cols
                   2310:           print  "<tr>";
                   2311:           if ($j < $leftRow) {
                   2312:              print  "<td bgcolor=\"$diffcolorChange\">@$leftColRef[$j]</td>";
                   2313:          }
                   2314:           else {
                   2315:              print  "<td bgcolor=\"$diffcolorDarkChange\">&nbsp;</td>";
                   2316:          }
                   2317:           if ($j < $rightRow) {
                   2318:              print  "<td bgcolor=\"$diffcolorChange\">@$rightColRef[$j]</td>";
                   2319:          }
                   2320:           else {
                   2321:              print  "<td bgcolor=\"$diffcolorDarkChange\">&nbsp;</td>";
                   2322:          }
                   2323:           print  "</tr>\n";
                   2324:       }
                   2325:     }
                   2326: }
                   2327:
                   2328: ##
                   2329: # Function to generate Human readable diff-files
                   2330: # human_readable_diff(String revision_to_return_to);
                   2331: ##
                   2332: sub human_readable_diff($){
3.24      knu      2333:   my ($difftxt, $where_nd, $filename, $pathname, $scriptwhere_nd);
3.1       knu      2334:   my ($fh, $rev) = @_;
                   2335:   my ($date1, $date2, $r1d, $r2d, $r1r, $r2r, $rev1, $rev2, $sym1, $sym2);
                   2336:   my (@rightCol, @leftCol);
                   2337:
                   2338:   ($where_nd = $where) =~ s/.diff$//;
                   2339:   ($filename = $where_nd) =~ s/^.*\///;
                   2340:   ($pathname = $where_nd) =~ s/(Attic\/)?[^\/]*$//;
                   2341:   ($scriptwhere_nd = $scriptwhere) =~ s/.diff$//;
                   2342:
3.12      knu      2343:   navigateHeader($scriptwhere_nd, $pathname, $filename, $rev, "diff");
3.1       knu      2344:
                   2345:   # Read header to pick up read revision and date, if possible
                   2346:   while (<$fh>) {
                   2347:       ($r1d,$r1r) = /\t(.*)\t(.*)$/ if (/^--- /);
                   2348:       ($r2d,$r2r) = /\t(.*)\t(.*)$/ if (/^\+\+\+ /);
                   2349:       last if (/^\+\+\+ /);
                   2350:   }
                   2351:   if (defined($r1r) && $r1r =~ /^(\d+\.)+\d+$/) {
                   2352:     $rev1 = $r1r;
                   2353:     $date1 = $r1d;
                   2354:   }
                   2355:   if (defined($r2r) && $r2r =~ /^(\d+\.)+\d+$/) {
                   2356:     $rev2 = $r2r;
                   2357:     $date2 = $r2d;
                   2358:   }
3.12      knu      2359:
3.1       knu      2360:   print "<h3 align=center>Diff for /$where_nd between version $rev1 and $rev2</h3>\n";
                   2361:
                   2362:   print "<table border=0 cellspacing=0 cellpadding=0 width=\"100%\">\n";
                   2363:   print "<tr bgcolor=\"#ffffff\">\n";
                   2364:   print "<th width=\"50%\" valign=TOP>";
                   2365:   print "version $rev1";
                   2366:   print ", $date1" if (defined($date1));
                   2367:   print "<br>Tag: $sym1\n" if ($sym1);
                   2368:   print "</th>\n";
                   2369:   print "<th width=\"50%\" valign=TOP>";
                   2370:   print "version $rev2";
                   2371:   print ", $date2" if (defined($date2));
                   2372:   print "<br>Tag: $sym2\n" if ($sym1);
                   2373:   print "</th>\n";
                   2374:
                   2375:   my $fs = "<font face=\"$difffontface\" size=\"$difffontsize\">";
                   2376:   my $fe = "</font>";
                   2377:
                   2378:   my $leftRow = 0;
                   2379:   my $rightRow = 0;
                   2380:   my ($oldline, $newline, $funname, $diffcode, $rest);
                   2381:
                   2382:   # Process diff text
                   2383:   # The diffrows are could make excellent use of
                   2384:   # cascading style sheets because we've to set the
                   2385:   # font and color for each row. anyone ...?
                   2386:   ####
3.24      knu      2387:
                   2388:   # prefetch several lines
                   2389:   my @buf = head($fh);
                   2390:
                   2391:   my %d = scan_directives(@buf);
                   2392:
                   2393:   while (@buf || !eof($fh)) {
                   2394:       $difftxt = @buf ? shift @buf : <$fh>;
3.12      knu      2395:
3.1       knu      2396:       if ($difftxt =~ /^@@/) {
                   2397:          ($oldline,$newline,$funname) = $difftxt =~ /@@ \-([0-9]+).*\+([0-9]+).*@@(.*)/;
                   2398:           print  "<tr bgcolor=\"$diffcolorHeading\"><td width=\"50%\">";
                   2399:          print  "<table width=\"100%\" border=1 cellpadding=5><tr><td><b>Line $oldline</b>";
                   2400:          print  "&nbsp;<font size=-1>$funname</font></td></tr></table>";
                   2401:           print  "</td><td width=\"50%\">";
                   2402:          print  "<table width=\"100%\" border=1 cellpadding=5><tr><td><b>Line $newline</b>";
                   2403:          print  "&nbsp;<font size=-1>$funname</font></td></tr></table>";
                   2404:          print  "</td>\n";
                   2405:          $state = "dump";
                   2406:          $leftRow = 0;
                   2407:          $rightRow = 0;
                   2408:       }
                   2409:       else {
                   2410:          ($diffcode,$rest) = $difftxt =~ /^([-+ ])(.*)/;
3.24      knu      2411:          $_ = spacedHtmlText($rest, $d{'tabstop'});
3.1       knu      2412:
                   2413:          # Add fontface, size
                   2414:          $_ = "$fs&nbsp;$_$fe";
3.12      knu      2415:
3.1       knu      2416:          #########
                   2417:          # little state machine to parse unified-diff output (Hen, zeller@think.de)
                   2418:          # in order to get some nice 'ediff'-mode output
                   2419:          # states:
                   2420:          #  "dump"             - just dump the value
                   2421:          #  "PreChangeRemove"  - we began with '-' .. so this could be the start of a 'change' area or just remove
                   2422:          #  "PreChange"        - okey, we got several '-' lines and moved to '+' lines -> this is a change block
                   2423:          ##########
                   2424:
                   2425:          if ($diffcode eq '+') {
                   2426:              if ($state eq "dump") {  # 'change' never begins with '+': just dump out value
                   2427:                  print  "<tr><td bgcolor=\"$diffcolorEmpty\">&nbsp;</td><td bgcolor=\"$diffcolorAdd\">$_</td></tr>\n";
                   2428:              }
                   2429:              else {                   # we got minus before
                   2430:                  $state = "PreChange";
                   2431:                  $rightCol[$rightRow++] = $_;
                   2432:              }
3.12      knu      2433:          }
3.1       knu      2434:          elsif ($diffcode eq '-') {
                   2435:              $state = "PreChangeRemove";
                   2436:              $leftCol[$leftRow++] = $_;
                   2437:         }
                   2438:         else {  # empty diffcode
                   2439:             flush_diff_rows \@leftCol, \@rightCol, $leftRow, $rightRow;
                   2440:              print  "<tr><td>$_</td><td>$_</td></tr>\n";
                   2441:              $state = "dump";
                   2442:              $leftRow = 0;
                   2443:              $rightRow = 0;
                   2444:          }
                   2445:       }
                   2446:   }
                   2447:   flush_diff_rows \@leftCol, \@rightCol, $leftRow, $rightRow;
                   2448:
                   2449:   # state is empty if we didn't have any change
                   2450:   if (!$state) {
                   2451:       print "<tr><td colspan=2>&nbsp;</td></tr>";
                   2452:       print "<tr bgcolor=\"$diffcolorEmpty\" >";
                   2453:       print "<td colspan=2 align=center><b>- No viewable Change -</b></td></tr>";
                   2454:   }
                   2455:   print  "</table>";
                   2456:   close($fh);
                   2457:
                   2458:   print "<br><hr noshade width=\"100%\">\n";
                   2459:
                   2460:   print "<table border=0>";
                   2461:
                   2462:   print "<tr><td>";
                   2463:   # print legend
                   2464:   print "<table border=1><tr><td>";
                   2465:   print  "Legend:<br><table border=0 cellspacing=0 cellpadding=1>\n";
                   2466:   print  "<tr><td align=center bgcolor=\"$diffcolorRemove\">Removed from v.$rev1</td><td bgcolor=\"$diffcolorEmpty\">&nbsp;</td></tr>";
                   2467:   print  "<tr bgcolor=\"$diffcolorChange\"><td align=center colspan=2>changed lines</td></tr>";
                   2468:   print  "<tr><td bgcolor=\"$diffcolorEmpty\">&nbsp;</td><td align=center bgcolor=\"$diffcolorAdd\">Added in v.$rev2</td></tr>";
                   2469:   print  "</table></td></tr></table>\n";
                   2470:
                   2471:   print "<td>";
                   2472:   # Print format selector
                   2473:   print "<FORM METHOD=\"GET\" ACTION=\"${scriptwhere}\">\n";
                   2474:   foreach my $var (keys %input) {
                   2475:     next if ($var eq "f");
                   2476:     next if (defined($DEFAULTVALUE{$var})
                   2477:             && $DEFAULTVALUE{$var} eq $input{$var});
                   2478:     print "<INPUT TYPE=HIDDEN NAME=\"",urlencode($var),"\" VALUE=\"",
                   2479:            urlencode($input{$var}),"\">\n";
                   2480:   }
                   2481:   printDiffSelect($use_java_script);
                   2482:   print "<INPUT TYPE=SUBMIT VALUE=\"Show\">\n";
                   2483:   print "</FORM>\n";
                   2484:   print "</td>";
                   2485:
                   2486:   print "</tr></table>";
                   2487: }
                   2488:
3.12      knu      2489: sub navigateHeader($$$$$) {
3.1       knu      2490:     my ($swhere,$path,$filename,$rev,$title) = @_;
                   2491:     $swhere = "" if ($swhere eq $scriptwhere);
                   2492:     $swhere = urlencode($filename) if ($swhere eq "");
                   2493:     print "<\!DOCTYPE HTML PUBLIC \"-//W3C//DTD HTML 4.0 Transitional//EN\">";
                   2494:     print "<HTML>\n<HEAD>\n";
3.34    ! knu      2495:     print '<!-- CVSweb $zRevision: 1.103 $  $Revision: 3.33 $ -->';
3.1       knu      2496:     print "\n<TITLE>$path$filename - $title - $rev</TITLE></HEAD>\n";
3.26      knu      2497:     print  "$body_tag_for_src\n";
3.1       knu      2498:     print "<table width=\"100%\" border=0 cellspacing=0 cellpadding=1 bgcolor=\"$navigationHeaderColor\">";
                   2499:     print "<tr valign=bottom><td>";
                   2500:     print  "<a href=\"$swhere$query#rev$rev\">$backicon";
                   2501:     print "</a> <b>Return to ", &link("$filename","$swhere$query#rev$rev")," CVS log";
                   2502:     print "</b> $fileicon</td>";
3.12      knu      2503:
3.1       knu      2504:     print "<td align=right>$diricon <b>Up to ", &clickablePath($path, 1), "</b></td>";
                   2505:     print "</tr></table>";
                   2506: }
                   2507:
3.12      knu      2508: sub plural_write($$) {
3.1       knu      2509:     my ($num,$text) = @_;
                   2510:     if ($num != 1) {
                   2511:        $text = $text . "s";
                   2512:     }
                   2513:     if ($num > 0) {
                   2514:        return $num . " " . $text;
                   2515:     }
                   2516:     else {
                   2517:        return "";
                   2518:     }
                   2519: }
                   2520:
                   2521: ##
                   2522: # print readable timestamp in terms of
                   2523: # '..time ago'
                   2524: # H. Zeller <zeller@think.de>
                   2525: ##
3.12      knu      2526: sub readableTime($$) {
3.1       knu      2527:     my ($i, $break, $retval);
                   2528:     my ($secs,$long) = @_;
                   2529:
                   2530:     # this function works correct for time >= 2 seconds
                   2531:     if ($secs < 2) {
                   2532:        return "very little time";
                   2533:     }
                   2534:
                   2535:     my %desc = (1 , 'second',
                   2536:                   60, 'minute',
                   2537:                   3600, 'hour',
                   2538:                   86400, 'day',
                   2539:                   604800, 'week',
                   2540:                   2628000, 'month',
                   2541:                   31536000, 'year');
                   2542:     my @breaks = sort {$a <=> $b} keys %desc;
                   2543:     $i = 0;
3.12      knu      2544:     while ($i <= $#breaks && $secs >= 2 * $breaks[$i]) {
3.1       knu      2545:        $i++;
                   2546:     }
                   2547:     $i--;
                   2548:     $break = $breaks[$i];
3.3       knu      2549:     $retval = plural_write(int ($secs / $break), $desc{$break});
3.1       knu      2550:
                   2551:     if ($long == 1 && $i > 0) {
                   2552:        my $rest = $secs % $break;
                   2553:        $i--;
                   2554:        $break = $breaks[$i];
3.12      knu      2555:        my $resttime = plural_write(int ($rest / $break),
3.3       knu      2556:                                $desc{$break});
3.1       knu      2557:        if ($resttime) {
                   2558:            $retval = $retval . ", " . $resttime;
                   2559:        }
                   2560:     }
                   2561:
                   2562:     return $retval;
                   2563: }
                   2564:
                   2565: ##
                   2566: # clickablePath(String pathname, boolean last_item_clickable)
                   2567: #
                   2568: # returns a html-ified path whereas each directory is a link for
                   2569: # faster navigation. last_item_clickable controls whether the
                   2570: # basename (last directory/file) is a link as well
                   2571: ##
                   2572: sub clickablePath($$) {
3.12      knu      2573:     my ($pathname,$clickLast) = @_;
3.1       knu      2574:     my $retval = '';
3.12      knu      2575:
3.1       knu      2576:     if ($pathname eq '/') {
                   2577:        # this should never happen - chooseCVSRoot() is
                   2578:        # intended to do this
                   2579:        $retval = "[$cvstree]";
                   2580:     }
                   2581:     else {
                   2582:        $retval = $retval . " <a href=\"${scriptname}/${query}#dirlist\">[$cvstree]</a>";
                   2583:        my $wherepath = '';
                   2584:        my ($lastslash) = $pathname =~ m|/$|;
                   2585:        foreach (split(/\//, $pathname)) {
                   2586:            $retval = $retval . " / ";
                   2587:            $wherepath = $wherepath . '/' . $_;
                   2588:            my ($last) = "$wherepath/" eq "/$pathname"
3.3       knu      2589:                || $wherepath eq "/$pathname";
3.1       knu      2590:            if ($clickLast || !$last) {
                   2591:                $retval = $retval . "<a href=\"${scriptname}"
                   2592:                    . urlencode($wherepath)
                   2593:                    . (!$last || $lastslash ? '/' : '')
                   2594:                    . ${query}
                   2595:                    . (!$last || $lastslash ? "#dirlist" : "")
                   2596:                    . "\">$_</a>";
                   2597:            }
                   2598:            else { # do not make a link to the current dir
                   2599:                $retval = $retval .  $_;
                   2600:            }
                   2601:        }
                   2602:     }
                   2603:     return $retval;
                   2604: }
                   2605:
                   2606: sub chooseCVSRoot() {
                   2607:     my @foo;
                   2608:     foreach (sort keys %CVSROOT) {
                   2609:        if (-d $CVSROOT{$_}) {
                   2610:            push(@foo, $_);
                   2611:        }
                   2612:     }
                   2613:     if (@foo > 1) {
                   2614:        my ($k);
                   2615:        print "<form method=\"GET\" action=\"${scriptwhere}\">\n";
                   2616:        foreach $k (keys %input) {
3.12      knu      2617:            print "<input type=hidden NAME=$k VALUE=$input{$k}>\n"
3.1       knu      2618:                if ($input{$k}) && ($k ne "cvsroot");
                   2619:        }
                   2620:        # Form-Elements look wierd in Netscape if the background
                   2621:        # isn't gray and the form elements are not placed
                   2622:        # within a table ...
                   2623:        print "<table><tr>";
                   2624:        print "<td>CVS Root:</td>";
                   2625:        print "<td>\n<select name=\"cvsroot\"";
                   2626:        print " onchange=\"submit()\"" if ($use_java_script);
                   2627:        print ">\n";
                   2628:        foreach $k (@foo) {
                   2629:            print "<option value=\"$k\"";
3.3       knu      2630:            print " selected" if ($k eq $cvstree);
                   2631:            print ">" . ($CVSROOTdescr{$k} ? $CVSROOTdescr{$k} :
3.1       knu      2632:                        $k). "</option>\n";
                   2633:        }
                   2634:        print "</select>\n</td>";
                   2635:        print "<td><input type=submit value=\"Go\"></td>";
                   2636:        print "</tr></table></form>";
                   2637:     }
                   2638:     else {
                   2639:        # no choice ..
                   2640:        print "CVS Root: <b>[$cvstree]</b>";
                   2641:     }
                   2642: }
                   2643:
                   2644: sub chooseMirror() {
                   2645:     my ($mirror,$moremirrors);
                   2646:     $moremirrors = 0;
                   2647:     # This code comes from the original BSD-cvsweb
                   2648:     # and may not be useful for your site; If you don't
                   2649:     # set %MIRRORS this won't show up, anyway
                   2650:     #
3.12      knu      2651:     # Should perhaps exlude the current site somehow..
3.1       knu      2652:     if (keys %MIRRORS) {
                   2653:        print "\nThis cvsweb is mirrored in:\n";
                   2654:        foreach $mirror (keys %MIRRORS) {
                   2655:            print ", " if ($moremirrors);
                   2656:            print qq(<a href="$MIRRORS{$mirror}">$mirror</A>\n);
                   2657:            $moremirrors = 1;
                   2658:        }
                   2659:        print "<p>\n";
                   2660:     }
                   2661: }
                   2662:
3.12      knu      2663: sub fileSortCmp() {
3.1       knu      2664:     my ($comp) = 0;
                   2665:     my ($c,$d,$af,$bf);
                   2666:
                   2667:     ($af = $a) =~ s/,v$//;
                   2668:     ($bf = $b) =~ s/,v$//;
                   2669:     my ($rev1,$date1,$log1,$author1,$filename1) = @{$fileinfo{$af}}
                   2670:         if (defined($fileinfo{$af}));
                   2671:     my ($rev2,$date2,$log2,$author2,$filename2) = @{$fileinfo{$bf}}
                   2672:         if (defined($fileinfo{$bf}));
                   2673:
                   2674:     if (defined($filename1) && defined($filename2) && $af eq $filename1 && $bf eq $filename2) {
                   2675:        # Two files
                   2676:        $comp = -revcmp($rev1, $rev2) if ($byrev && $rev1 && $rev2);
                   2677:        $comp = ($date2 <=> $date1) if ($bydate && $date1 && $date2);
                   2678:        $comp = ($log1 cmp $log2) if ($bylog && $log1 && $log2);
                   2679:        $comp = ($author1 cmp $author2) if ($byauthor && $author1 && $author2);
                   2680:     }
                   2681:     if ($comp == 0) {
                   2682:        # Directories first, then sorted on name if no other sort critera
                   2683:        # available.
                   2684:        my $ad = ((-d "$fullname/$a")?"D":"F");
                   2685:        my $bd = ((-d "$fullname/$b")?"D":"F");
                   2686:        ($c=$a) =~ s|.*/||;
                   2687:        ($d=$b) =~ s|.*/||;
                   2688:        $comp = ("$ad$c" cmp "$bd$d");
                   2689:     }
                   2690:     return $comp;
                   2691: }
                   2692:
                   2693: # make A url for downloading
3.12      knu      2694: sub download_url($$;$) {
3.1       knu      2695:     my ($url,$revision,$mimetype) = @_;
                   2696:
                   2697:     $revision =~ s/\b0\.//;
                   2698:
                   2699:     if (defined($checkout_magic)
                   2700:        && (!defined($mimetype) || $mimetype ne "text/x-cvsweb-markup")) {
                   2701:        my ($path);
                   2702:        ($path = $where) =~ s|/[^/]*$|/|;
                   2703:        $url = "$scriptname/$checkoutMagic/${path}$url";
                   2704:     }
                   2705:     $url .= "?rev=$revision";
                   2706:     $url .= "&amp;content-type=$mimetype" if (defined($mimetype));
                   2707:
                   2708:     return $url;
                   2709: }
                   2710:
3.12      knu      2711: # Presents a link to download the
3.1       knu      2712: # selected revision
3.12      knu      2713: sub download_link($$$;$) {
3.1       knu      2714:     my ($url,$revision,$textlink,$mimetype) = @_;
                   2715:     my ($fullurl) = download_url($url,$revision,$mimetype);
                   2716:     my ($paren) = $textlink =~ /^\(/;
                   2717:     $textlink =~ s/^\(// if ($paren);
                   2718:     $textlink =~ s/\)$// if ($paren);
                   2719:     print "(" if ($paren);
                   2720:     print "<A HREF=\"$fullurl";
                   2721:     print $barequery;
                   2722:     print "\"";
                   2723:     if ($open_extern_window && (!defined($mimetype) || $mimetype ne "text/x-cvsweb-markup")) {
                   2724:        print " target=\"cvs_checkout\"";
                   2725:        # we should have
                   2726:        #   'if (document.cvswin==null) document.cvswin=window.open(...'
                   2727:        # in order to allow the user to resize the window; otherwise
                   2728:        # the user may resize the window, but on next checkout - zap -
                   2729:        # its original (configured s. cvsweb.conf) size is back again
                   2730:        # .. annoying (if $extern_window_(width|height) is defined)
                   2731:        # but this if (..) solution is far from perfect
                   2732:        # what we need to do as well is
                   2733:        # 1) save cvswin in an invisible frame that always exists
                   2734:        #    (document.cvswin will be void on next load)
                   2735:        # 2) on close of the cvs_checkout - window set the cvswin
                   2736:        #    variable to 'null' again - so that it will be
                   2737:        #    reopenend with the configured size
                   2738:        # anyone a JavaScript programmer ?
                   2739:        # .. so here without if (..):
                   2740:        # currently, the best way is to comment out the size parameters
                   2741:        # ($extern_window...) in cvsweb.conf.
                   2742:        if ($use_java_script) {
                   2743:            print " onClick=\"window.open('$fullurl','cvs_checkout',";
                   2744:            print "'resizeable,scrollbars";
                   2745:            print ",status,toolbar" if (defined($mimetype)
                   2746:                && $mimetype eq "text/html");
                   2747:            print ",width=$extern_window_width" if (defined($extern_window_width));
                   2748:            print ",height=$extern_window_height" if (defined($extern_window_height));
                   2749:            print"');\"";
                   2750:        }
                   2751:     }
                   2752:     print "><b>$textlink</b></A>";
                   2753:     print ")" if ($paren);
                   2754: }
                   2755:
                   2756: # Returns a Query string with the
                   2757: # specified parameter toggled
                   2758: sub toggleQuery($$) {
                   2759:     my ($toggle,$value) = @_;
                   2760:     my ($newquery,$var);
                   2761:     my (%vars);
                   2762:     %vars = %input;
                   2763:     if (defined($value)) {
                   2764:        $vars{$toggle} = $value;
                   2765:     }
                   2766:     else {
                   2767:        $vars{$toggle} = $vars{$toggle} ? 0 : 1;
                   2768:     }
                   2769:     # Build a new query of non-default paramenters
                   2770:     $newquery = "";
                   2771:     foreach $var (@stickyvars) {
                   2772:        my ($value) = defined($vars{$var}) ? $vars{$var} : "";
                   2773:        my ($default) = defined($DEFAULTVALUE{$var}) ? $DEFAULTVALUE{$var} : "";
                   2774:        if ($value ne $default) {
                   2775:            $newquery .= "&amp;" if ($newquery ne "");
                   2776:            $newquery .= urlencode($var) . "=" . urlencode($value);
                   2777:        }
                   2778:     }
                   2779:     if ($newquery) {
                   2780:        return '?' . $newquery;
                   2781:     }
                   2782:     return "";
                   2783: }
                   2784:
3.12      knu      2785: sub urlencode($) {
3.1       knu      2786:     my ($in) = @_;
                   2787:     my ($out);
                   2788:     ($out = $in) =~ s/([\000-+{-\377])/sprintf("%%%02x", ord($1))/ge;
                   2789:     return $out;
                   2790: }
                   2791:
3.12      knu      2792: sub http_header(;$) {
3.1       knu      2793:     my $content_type = shift || "text/html";
                   2794:     if (defined($moddate)) {
                   2795:        if ($is_mod_perl) {
3.23      knu      2796:            Apache->request->header_out("Last-Modified" => scalar gmtime($moddate) . " GMT");
3.1       knu      2797:        }
                   2798:        else {
3.4       knu      2799:            print "Last-Modified: " . scalar gmtime($moddate) . " GMT\r\n";
3.1       knu      2800:        }
                   2801:     }
                   2802:     if ($is_mod_perl) {
                   2803:        Apache->request->content_type($content_type);
                   2804:     }
                   2805:     else {
3.4       knu      2806:            print "Content-type: $content_type\r\n";
3.1       knu      2807:     }
                   2808:     if ($allow_compress && $maycompress) {
3.23      knu      2809:        if ($has_zlib || (defined($GZIPBIN) && open(GZIP, "|$GZIPBIN -1 -c"))) {
3.1       knu      2810:            if ($is_mod_perl) {
                   2811:                    Apache->request->content_encoding("x-gzip");
                   2812:                    Apache->request->header_out(Vary => "Accept-Encoding");
                   2813:                    Apache->request->send_http_header;
                   2814:            }
                   2815:            else {
3.4       knu      2816:                    print "Content-encoding: x-gzip\r\n";
                   2817:                    print "Vary: Accept-Encoding\r\n";  #RFC 2068, 14.43
                   2818:                    print "\r\n"; # Close headers
3.1       knu      2819:            }
                   2820:            $| = 1; $| = 0; # Flush header output
3.23      knu      2821:            if ($has_zlib) {
                   2822:                tie *GZIP, __PACKAGE__, \*STDOUT;
                   2823:            }
                   2824:            select(GZIP);
                   2825:            $gzip_open = 1;
3.1       knu      2826: #          print "<!-- gzipped -->" if ($content_type eq "text/html");
                   2827:        }
                   2828:        else {
                   2829:            if ($is_mod_perl) {
                   2830:                    Apache->request->send_http_header;
                   2831:            }
                   2832:            else {
3.4       knu      2833:                    print "\r\n"; # Close headers
3.1       knu      2834:            }
                   2835:            print "<font size=-1>Unable to find gzip binary in the \$PATH to compress output</font><br>";
                   2836:        }
                   2837:     }
                   2838:     else {
                   2839:            if ($is_mod_perl) {
                   2840:                    Apache->request->send_http_header;
                   2841:            }
                   2842:            else {
3.4       knu      2843:                    print "\r\n"; # Close headers
3.1       knu      2844:            }
                   2845:     }
                   2846: }
                   2847:
                   2848: sub html_header($) {
                   2849:     my ($title) = @_;
3.34    ! knu      2850:     my $version = '$zRevision: 1.103 $  $Revision: 3.33 $'; #'
3.1       knu      2851:     http_header();
                   2852:     print <<EOH;
                   2853: <!doctype html public "-//W3C//DTD HTML 4.0 Transitional//EN"
                   2854:  "http://www.w3.org/TR/REC-html40/loose.dtd">
                   2855: <html>
                   2856: <title>$title</title>
3.3       knu      2857: <!-- CVSweb $version -->
3.1       knu      2858: </head>
                   2859: $body_tag
                   2860: $logo <h1 align="center">$title</h1>
                   2861: EOH
                   2862: }
                   2863:
3.12      knu      2864: sub html_footer() {
3.1       knu      2865:     return "<hr noshade><address>$address</address>\n";
                   2866: }
                   2867:
3.12      knu      2868: sub link_tags($) {
3.1       knu      2869:     my ($tags) = @_;
                   2870:     my ($ret) = "";
                   2871:     my ($fileurl,$filename);
                   2872:
                   2873:     ($filename = $where) =~ s/^.*\///;
                   2874:     $fileurl = urlencode($filename);
                   2875:
                   2876:     foreach my $sym (split(", ", $tags)) {
                   2877:        $ret .= ",\n" if ($ret ne "");
                   2878:        $ret .= "<A HREF=\"$fileurl"
                   2879:                . toggleQuery('only_with_tag',$sym) . "\">$sym</A>";
                   2880:     }
                   2881:     return $ret."\n";
                   2882: }
                   2883:
                   2884: #
                   2885: # See if a module is listed in the config file's @HideModule list.
                   2886: #
3.12      knu      2887: sub forbidden_module($) {
3.1       knu      2888:     my($module) = @_;
3.12      knu      2889:
3.1       knu      2890:     for (my $i=0; $i < @HideModules; $i++) {
                   2891:        return 1 if $module eq $HideModules[$i];
                   2892:     }
                   2893:
                   2894:     return 0;
3.25      knu      2895: }
                   2896:
                   2897: # Close the GZIP handle remove the tie.
                   2898:
                   2899: sub gzipclose {
                   2900:        if ($gzip_open) {
                   2901:            select(STDOUT);
                   2902:            close(GZIP);
                   2903:            untie *GZIP;
                   2904:            $gzip_open = 0;
                   2905:        }
3.23      knu      2906: }
                   2907:
                   2908: # implement a gzipped file handle via the Compress:Zlib compression
                   2909: # library.
                   2910:
                   2911: sub MAGIC1() { 0x1f }
                   2912: sub MAGIC2() { 0x8b }
                   2913: sub OSCODE() { 3    }
                   2914:
                   2915: sub TIEHANDLE {
                   2916:        my ($class, $out) = @_;
                   2917:        my ($d) = Compress::Zlib::deflateInit(-Level => Compress::Zlib::Z_BEST_COMPRESSION(),
                   2918:                -WindowBits => -Compress::Zlib::MAX_WBITS()) or return undef;
                   2919:        my ($o) = {
                   2920:                handle => $out,
                   2921:                dh => $d,
                   2922:                crc => 0,
                   2923:                len => 0,
                   2924:        };
                   2925:        my ($header) = pack("c10", MAGIC1, MAGIC2, Compress::Zlib::Z_DEFLATED(), 0,0,0,0,0,0, OSCODE);
                   2926:        print {$o->{handle}} $header;
                   2927:        return bless($o, $class);
                   2928: }
                   2929:
                   2930: sub PRINT {
                   2931:        my ($o) = shift;
                   2932:        my ($buf) = join(defined $, ? $, : "",@_);
                   2933:        my ($len) = length($buf);
                   2934:        my ($compressed, $status) = $o->{dh}->deflate($buf);
                   2935:        print {$o->{handle}} $compressed if defined($compressed);
                   2936:        $o->{crc} = Compress::Zlib::crc32($buf, $o->{crc});
                   2937:        $o->{len} += $len;
                   2938:        return $len;
                   2939: }
                   2940:
                   2941: sub PRINTF {
                   2942:        my ($o) = shift;
                   2943:        my ($fmt) = shift;
                   2944:        my ($buf) = sprintf($fmt, @_);
                   2945:        my ($len) = length($buf);
                   2946:        my ($compressed, $status) = $o->{dh}->deflate($buf);
                   2947:        print {$o->{handle}} $compressed if defined($compressed);
                   2948:        $o->{crc} = Compress::Zlib::crc32($buf, $o->{crc});
                   2949:        $o->{len} += $len;
                   2950:        return $len;
                   2951: }
                   2952:
                   2953: sub WRITE {
                   2954:        my ($o, $buf, $len, $off) = @_;
                   2955:        my ($compressed, $status) = $o->{dh}->deflate(substr($buf, 0, $len));
                   2956:        print {$o->{handle}} $compressed if defined($compressed);
                   2957:        $o->{crc} = Compress::Zlib::crc32(substr($buf, 0, $len), $o->{crc});
                   2958:        $o->{len} += $len;
                   2959:        return $len;
                   2960: }
                   2961:
                   2962: sub CLOSE {
                   2963:        my ($o) = @_;
                   2964:        return if !defined( $o->{dh});
                   2965:        my ($buf) = $o->{dh}->flush();
                   2966:        $buf .= pack("V V", $o->{crc}, $o->{len});
                   2967:        print {$o->{handle}} $buf;
                   2968:        undef $o->{dh};
                   2969: }
                   2970:
                   2971: sub DESTROY {
                   2972:        my ($o) = @_;
                   2973:        CLOSE($o);
1.1       jfieber  2974: }

CVSweb