Annotation of loncom/lonhttpd, revision 1.17

1.1       www         1: #!/usr/bin/perl
1.17    ! droeschl    2: # $Id: lonhttpd,v 1.16 2008/05/01 14:36:03 raeburn Exp $
1.1       www         3: 
1.6       albertel    4: $VERSION = "1.3.2 (Demonic/Linux/LON-CAPA Derivative $Revison$)";
1.1       www         5: 
1.3       www         6: # HTTPi Hypertext Tiny Truncated Process Implementation
                      7: # Copyright 1999-2001 Cameron Kaiser # All rights reserved
                      8: # Please read LICENSE # Do not strip this copyright message.
                      9: #
                     10: # LON-CAPA: find httpi license and readme at CVS loncom/license
                     11: #
                     12: 
1.6       albertel   13: use lib '/home/httpd/lib/perl/';
                     14: use LONCAPA::Configuration();
                     15: %loncapavar=%{&LONCAPA::Configuration::read_conf('loncapa.conf')};
                     16: $port_to_use=$loncapavar{'lonhttpdPort'};
                     17: if (!defined($port_to_use)) {
                     18:     $port_to_use='8080';
                     19: }
                     20: 
                     21: # The main server is running on 80, so exit in this case
                     22: if ($port_to_use eq '80') { die('Apache is already on Port 80'); }
                     23: 
1.3       www        24: %system_content_types =
                     25: 	("html" => "text/html",
                     26: 	 "htm" => "text/html",
                     27: 	 "wml" => "text/vnd.wap.wml",
                     28: 	 "wbmp" => "image/vnd.wap.wbmp",
                     29: 	 "wbm" => "image/vnd.wap.wbmp",
                     30: 	 "xbm" => "image/x-xbitmap",
                     31: 	 "pdf" => "application/pdf",
                     32: 	 "fdf" => "application/vnd.fdf",
                     33: 	 "bin" => "application/octet-stream",
                     34: 	 "class" => "application/octet-stream",
                     35: 	 "jar" => "application/octet-stream",
                     36: 	 "js" => "application/x-javascript",
                     37: 	 "lnk" => "application/x-hyperlink",
                     38: 	 "wav" => "audio/x-wav",
                     39: 	 "mp3" => "audio/x-mpeg",
                     40: 	 "tif" => "image/tiff",
                     41: 	 "tiff" => "image/tiff",
                     42: 	 "mid" => "audio/x-midi",
                     43: 	 "txt" => "text/plain",
                     44: 	 "gif" => "image/gif",
                     45: 	 "sit" => "application/x-stuffit",
                     46: 	 "zip" => "application/x-zip-compressed",
                     47: 	 "lzh" => "application/octet-stream",
                     48: 	 "lha" => "application/octet-stream",
                     49: 	 "gz"  => "application/x-gzip",
                     50: 	 "mov" => "movie/quicktime",
                     51: 	 "mpeg" => "video/mpeg",
                     52: 	 "mpg" => "video/mpeg",
                     53: 	 "jpeg" => "image/jpeg",
1.11      raeburn    54: 	 "jpg" => "image/jpeg",
                     55:          "png" => "image/png");
1.3       www        56: 
                     57: $logfile = "/home/httpd/perl/logs/lonhttpd.log";
                     58: 
                     59: # Write out PID
                     60: 
                     61: $pidfile="/home/httpd/perl/logs/lonhttpd.pid";
                     62: 
                     63: if (-e $pidfile) {
                     64:    open(LFH,"$pidfile");
1.10      albertel   65:    my $pide=<LFH>;
1.3       www        66:    chomp($pide);
                     67:    close(LFH);
                     68:    if (kill 0 => $pide) { die "already running"; }
                     69: }
                     70: 
                     71: $path = "/home/httpd/html";
                     72: $sockaddr = 'S n a4 x8';
1.1       www        73: 
                     74: 
1.3       www        75: %content_types =
                     76: 	("html" => "text/html",
                     77: 	 "htm" => "text/html");
                     78: %restrictions =
                     79: 	("/"        => "#.##",  # deny everything
                     80:          "/res/adm" => ".###",  # allow /res/adm
                     81:          "/adm"     => ".###",  # allow /adm
                     82: 	 "/status"  => ".####lonadm:oeRooOvb3HtpI");
                     83: 		# See documentation for interpreting this string.
                     84: 
                     85: $headers = <<"EOF";
                     86: Server: HTTPi/$VERSION
                     87: MIME-Version: 1.0
                     88: EOF
                     89: 
1.17    ! droeschl   90: %virtual_files = ();
1.3       www        91: 
                     92: %content_types = (%system_content_types, %content_types);
                     93: undef %system_content_types;
                     94: 
                     95: while (($file, $arrayref) = each(%virtual_files)) {
                     96: 	my ($mime, $type, $block) = (@{ $arrayref });
                     97: 	next if ($type ne 'FILE');
                     98: 	if(open(S, "$block")) {
                     99: 		$j = $/; undef $/; $virtual_files{$file}->[2] = scalar(<S>);
                    100: 		$/ = $j; close(S);
                    101: 	} else {
                    102: 		warn "while getting virtual file $file: $!\n";
                    103: 		map_delete(%virtual_files, $file);
                    104: 	}
                    105: }
                    106: if ($pid = fork()) { exit; }
                    107: 
                    108: #
                    109: # Store parent PID
                    110: #
1.1       www       111: 
1.3       www       112: open (PIDSAVE,">$pidfile");
1.1       www       113: print PIDSAVE "$$\n";
                    114: close(PIDSAVE);
                    115: 
1.5       albertel  116: $0 = "lonhttpd: (dhttpi) binding port ...";
1.6       albertel  117: $bindthis = pack($sockaddr, 2, $port_to_use,
                    118: 		 pack('l', chr(0).chr(0).chr(0).chr(0)));
1.3       www       119: socket(S, 2, 1, 6);
                    120: setsockopt(S, 1, 2, 1);
1.6       albertel  121: bind(S, $bindthis) || die("$0: while binding port $port_to_use:\n\"$!\"\n");
1.3       www       122: listen(S, 128);
1.6       albertel  123: $0 = "lonhttpd: (dhttpi) connected and waiting ANY:$port_to_use";
1.3       www       124: 
                    125: $statiosuptime = time();
                    126: 
                    127: ###############################################################
                    128: # WHITE HATS ONLY BELOW THIS POINT -- SEE DOCUMENTATION FIRST #
                    129: ###############################################################
                    130: 
                    131: sub sock_to_host {
                    132: 	local($sock) = getpeername(STDIN);
                    133: 
                    134: 	return (undef, undef, undef) if (!$sock);
                    135: 	local($AFC, $port, $thataddr, $zero) = unpack($sockaddr, $sock);
                    136: 	local($ip) = join('.', unpack("C4", $thataddr));
                    137: 	return ($ip, $port, $ip);
                    138: }
                    139: 
                    140: sub htsponse {
                    141: 	($currentcode, $currentstring) = (@_);
                    142: 	return if (0+$httpver < 1);
                    143: 	local($what) = <<"EOF";
                    144: HTTP/$httpver $currentcode $currentstring
                    145: ${headers}Date: $rfcdate
                    146: EOF
                    147: 	$what =~ s/\n/\r\n/g;
                    148: 	print stdout $what;
                    149: 	&hthead("Connection: close") if (0+$httpver > 1);
                    150: }
                    151: 
                    152: sub hthead {
                    153: 	local($header, $term) = (@_);
                    154: 	return if (0+$httpver < 1);
                    155: 	print stdout "$header\r\n" , ($term) ? "\r\n" : "";
                    156: }
                    157: 
                    158: sub htcontent {
                    159: 	local($what, $ctype, $mode) = (@_);
                    160: 	($contentlength) = $mode || length($what);
                    161: 	&hthead("Content-Length: $contentlength");
                    162: 	&hthead("Content-Type: $ctype", 1);
                    163: 	return if ($method eq 'HEAD' || $mode);
                    164: 	print stdout $what;
                    165: }
                    166: 
                    167: sub log {
                    168:  	if (open(J, ">>$logfile")) {
                    169: 		local $q = $address . (($variables) ? "?$variables" : "");
                    170: 		$contentlength += 0;
                    171: 		$contentlength = 0 if ($method eq 'HEAD');
                    172: 		local ($hostname, $port, $ip) = &sock_to_host();
                    173: 		$hostname = $hostname || "-";
                    174: 		$httpuser = $httpuser || "-";
                    175: 		print J <<"EOF";
                    176: $hostname - $httpuser [$date] "$method $q HTTP/$httpver" $currentcode $contentlength "$httpref" "$httpua"
                    177: EOF
                    178: 		close(J); }
                    179: 	}
                    180: 
                    181: 
1.9       www       182: sub bye { exit; }
                    183: 
                    184: sub goodbye { unlink($pidfile); exit; }
1.3       www       185: 
                    186: sub dead {
                    187: 	&htsponse(500, "Server Error");
                    188: 	&hterror("Server Error", <<"EOF");
                    189: While handling a request for resource $address, the server crashed. Please
                    190: attempt to notify the administrators.
                    191: <p>Useful(?) debugging information:
                    192: <pre>
                    193: @_
                    194: </pre>
                    195: EOF
                    196: 	&log; unlink($pidfile); exit;
                    197: }
                    198: 
                    199: $SIG{'__DIE__'} = \&dead;
1.9       www       200: $SIG{'ALRM'} = \&bye;
                    201: $SIG{'TERM'} = $SIG{'INT'} = \&goodbye;
1.3       www       202: 
                    203: sub master {
1.5       albertel  204: 	$0 = "lonhttpd: (dhttpi) handling request";
1.3       www       205: # $sock = getpeername(STDIN);
                    206: $rfcdate = scalar gmtime;
                    207: ($dow, $mon, $dt, $tm, $yr) = ($rfcdate =~
                    208: 	m/(...) (...) (..) (..:..:..) (....)/);
                    209: $dt += 0; $yr += 0;
                    210: $rfcdate = "$dow, $dt $mon $yr $tm GMT";
                    211: $date = scalar localtime;
                    212: ($dow, $mon, $dt, $tm, $yr) = ($date =~
                    213: 	m/(...) (...) (..) (..:..:..) (....)/);
                    214: $dt += 0;
                    215: $dt = substr("0$dt", length("0$dt") - 2, 2);
                    216: $date = "$dt/$mon/$yr:$tm +0000"; 
                    217: 
                    218: select(STDOUT); $|=1; $address = 0; 
                    219: alarm 1;
                    220: while (<STDIN>) {
1.8       albertel  221: 	if(/^([A-Z]+)\s+(\S+)\s+(\S*)/) {
1.3       www       222: 		$method = $1;
                    223: 		$address = $2; 
                    224: 		$httpver = $3;
                    225: 		$httpref = '';
                    226: 		$httpua = '';
                    227: 		$httpver = ($httpver =~ m#HTTP/([0-9]\.[0-9]+)#) ?
                    228: 			($1) : (0.9);
                    229: 		$address =~ s#^http://[^/]+/#/#;
                    230: 		next unless ($httpver < 1);
                    231: 	} else {
                    232: 		s/[\r\l\n\s]+$//;
                    233: 		(/^Host: (.+)/i) && ($httphost = $1) && ($httphost =~
                    234: 			s/:\d+$//);
                    235: 		(/^Referer: (.+)/i) && ($httpref = $1);
                    236: 		(/^User-agent: (.+)/i) && ($httpua = $1);
                    237: 		(/^Content-length: (\d+)/i) && ($ENV{'CONTENT_LENGTH'} =
                    238: 			$httpcl = $1);
                    239: 		(/^Content-type: (.+)/i) && ($ENV{'CONTENT_TYPE'} =
                    240: 			$httpct = $1);
                    241: 		(/^Expect: /) && ($expect = 1);
                    242: 		(/^Authorization: Basic (.+)/i) && ($httprawu = $1);
                    243: 		(/^Range: (.+)/i) && ($ENV{'CONTENT_RANGE'} = $1);
                    244: 		next unless (/^$/);
                    245: 	}
                    246: 	if ($expect) {
                    247: 		&htsponse(417, "Expectation Failed");
                    248: 		&hterror("Expectation Failed",
                    249: 			"The server does not support this method.");
                    250: 		&log; exit;
                    251: 	}
                    252: 	if (!$address || (0+$httpver > 1 && !$httphost)) {
                    253: 		&htsponse(400, "Bad Request");
                    254: 		&hterror("Bad Request",
                    255: 			"The server cannot understand your request.");
                    256: 		&log; exit;
                    257: 	}
                    258: 	if ($method !~ /^(GET|HEAD|POST)$/) {
                    259: 		&htsponse(501, "Illegal Method");
                    260: 		&hterror("Illegal Method",
                    261: 			"Only GET, HEAD and POST are supported.");
                    262: 		&log; exit;
                    263: 	}
                    264: 	($address, $variables) = split(/\?/, $address);
                    265: 	$address =~ s/%([0-9a-fA-F]{2})/pack("H2", $1)/eg;
                    266: 	$address=~ s#^/?#/#;
                    267: 	1 while $address =~ s#/\.(/|$)#\1#;
                    268:         1 while $address =~ s#/[^/]*/\.\.(/|$)#\1#;
                    269: 	1 while $address =~ s#^/\.\.(/|$)#\1#;
1.11      raeburn   270: 	$fail = 1;
1.3       www       271: #
                    272: # Heavily customized for LON-CAPA
                    273: #
1.4       www       274: 	$address=~s/\/+/\//g;
1.11      raeburn   275:         if ($address=~/^\/(status|adm\/|res\/adm\/)/) {
                    276:             $fail = 0;
1.16      raeburn   277:         } elsif ($address =~ /^\/res\/([\w\.\-]+)\/\1\-domainconfig\/(logo|domlogo|img|login)\/[^\/]+$/) {
1.13      raeburn   278:             $fail = 0;
1.11      raeburn   279:         }
1.3       www       280: #
                    281: # because existing restriction matrix would not do precedence across rules
                    282: #
                    283: #	J: foreach(sort { length $a <=> length $b }
                    284: #			keys %restrictions) {
                    285: #		next if ($address !~ /^$_/);
                    286: #		($allowip, $denyip, $allowua, $denyua, $auser) =
                    287: #			split(/#/, $restrictions{$_});
                    288: #		if ($allowip || $denyip) {
                    289: #			($hostname, $port, $ip) = &sock_to_host();
                    290: #			($allowip && $ip !~ /$allowip/) && ($fail = 1,
                    291: #				last J);
                    292: #			($denyip && $ip =~ /$denyip/) && ($fail = 1,
                    293: #				last J);
                    294: #		}
                    295: #		($allowua && $httpua !~ /$allowua/) &&
                    296: #			($fail = 2, last J);
                    297: #		($denyua && $httpua =~ /$denyua/) &&
                    298: #			($fail = 2, last J);
                    299: #	}
                    300: 	if ($fail) {
                    301: 		&htsponse(403, "Forbidden");
                    302: 		if ($fail == 1) {
1.7       www       303: 			&hterror("Wrong URL", <<"EOF");
                    304: You might want to remove the "<tt>:$port_to_use</tt>" from the web page address (URL).
1.3       www       305: EOF
                    306: 			&log; exit;
                    307: 		} else {
                    308: 			&hterror("Forbidden (Browser Disallowed)", <<"EOF");
                    309: The browser you are using (<i>$httpua</i>) is not capable of or
                    310: is not allowed access to this resource.
                    311: EOF
                    312: 			&log; exit;
                    313: 		}
                    314: 	}
                    315: 	if ($auser) {
                    316: 		$httprawu =~ tr#A-Za-z0-9+/##cd;
                    317: 		$httprawu =~ tr#A-Za-z0-9+/# -_#;
                    318: 		$httprawu = unpack("u", pack("c", 32+0.75*length($httprawu))
                    319: 			. $httprawu);
                    320: 		($httpuser, $httppw) = split(/:/, $httprawu);
                    321: 		$fail = 1;
                    322: 		foreach $user (split(/,/, $auser)) {
                    323: 			($user, $pw) = split(/:/, $user);
                    324: 			($fail = 0, last) if ($user eq $httpuser &&
                    325: 				crypt($httppw, substr($pw, 0, 2)) eq $pw);
                    326: 		}
                    327: 		if ($fail) {
                    328: 			$httpuser = '';
                    329: 			&htsponse(401, "Authorization Required");
                    330: 			&hthead("WWW-Authenticate: Basic realm=\"$address\"");
                    331: 			&hterror("Authorization Required", <<"EOF");
                    332: You must provide a username and password to use this resource. Either you
                    333: entered this information incorrectly, or your browser does not know how to
                    334: present the credentials required.
                    335: EOF
                    336: 			&log; exit;
                    337: 		}
                    338: 	}
1.1       www       339: 
1.3       www       340: 	alarm 0;
                    341: 
                    342: 	if ($address eq '/status') {
                    343: 		&htsponse(200, "OK");
                    344: 		$contentlength = 0; # kludge
                    345: 		&log;
                    346: 		if(open(S, $logfile)) {
                    347: 			seek(S, -5000, 2);
                    348: 			undef $/;
                    349: 			$logsnap = <S>;
                    350: 			$logsnap =~ s/^[^\n]+\n//s if
                    351: 				(length($logsnap) > 4999);
                    352: 			close(S);
                    353: 		}
                    354: 		$p = (time() - $statiosuptime);
                    355: 		$rps = $p/$statiosreq;
                    356: 		$d = int($p / 86400); $p -= $d * 86400;
                    357: 		$h = int($p / 3600); $p -= $h * 3600;
                    358: 		$m = int($p / 60); $s = $p - ($m * 60);
                    359: 		("0$s" =~ /(\d{2})$/) && ($s = $1);
                    360: 		("0$m" =~ /(\d{2})$/) && ($m = $1);
                    361: 		$h +=0; $d += 0;
                    362: 		$suptime = scalar localtime $statiosuptime;
                    363: 		&htcontent(<<"EOF", "text/html");
                    364: <html>
                    365: <head>
                    366: <title>
1.5       albertel  367: LonHTTPD (HTTPi) Status
1.3       www       368: </title>
                    369: </head>
                    370: <body bgcolor = "#ffffff" text = "#000000" vlink = "#0000ff" link = "#0000ff">
1.5       albertel  371: <h1>LonHTTPD (HTTPi) Server Status (<code>$VERSION</code>)</h1>
1.6       albertel  372: <h3>lonhttpd on port $port_to_use</h3>
1.3       www       373: <b>Started at:</b> $suptime<br>
                    374: <b>Uptime:</b> $d days, $h:$m:$s<br>
                    375: <b>Last request time:</b> $statiosltr<p>
                    376: <b>Requests received:</b> $statiosreq<br>
                    377: <b>Average time between requests:</b> ${rps}s
                    378: <p>
                    379: <b>Most recent requests:</b>
                    380: <form action = "/status" method = "post">
                    381: <textarea name = "bletch" rows = "8" cols = "70">
                    382: $logsnap
                    383: </textarea>
                    384: </form>
                    385: <hr>
                    386: <address>maintained by <a href =
                    387: "http://httpi.floodgap.com/">httpi/$VERSION</a></address>
                    388: </body>
                    389: </html>
                    390: EOF
                    391: 		exit;
                    392: 	}
                    393: 	if (defined $virtual_files{$address}) {
                    394: 		$virt_buffer = 1;
                    395: 		$mtime = $statiosuptime; # thus always needed
                    396: 		goto SERVEIT;		# yes, it's bad but it's fast
                    397: 	}
                    398: 	$raddress = "$path$address"
                    399: 	;
                    400: 	&hterror301("$address/")
                    401: 		if ($address !~ m#/$# && -d $raddress);
                    402: 	$raddress = "${raddress}index.html" if (-d $raddress);
                    403: 	if(!sysopen(S, $raddress, 0)) { &hterror404; } else {
                    404: 		if (-x $raddress) {
                    405: 			$currentcode = 100;
                    406: 			&log;
                    407: 			if (!$<) {
                    408: 				($x,$x,$x,$x,$uid,$gid) = stat(S);
                    409: 				(!$uid || !$gid) &&
                    410: 					die "executable is root-owned";
                    411: 				$> = $uid || die "can't set effuid";
                    412: 				$) = $gid || die "can't set effgid";
                    413: 			}
                    414: 			($hostname, $port, $ip) = &sock_to_host() if (!$port);
                    415: 			$ENV{'REQUEST_METHOD'} = $method;
                    416: 			$ENV{'SERVER_NAME'} = "localhost";
                    417: 			$ENV{'SERVER_PROTOCOL'} = "HTTP/$httpver";
                    418: 			$ENV{'SERVER_SOFTWARE'} = "HTTPi/$VERSION";
1.6       albertel  419: 			$ENV{'SERVER_PORT'} = "$port_to_use";
                    420: 			$ENV{'SERVER_URL'} = "http://localhost:$port_to_use/";
1.3       www       421: 			$ENV{'SCRIPT_FILENAME'} = $raddress;
                    422: 			$ENV{'SCRIPT_NAME'} = $address;
                    423: 			$ENV{'REMOTE_HOST'} = $hostname;
                    424: 			$ENV{'REMOTE_ADDR'} = $ip;
                    425: 			$ENV{'REMOTE_PORT'} = $port;
                    426: 			$ENV{'QUERY_STRING'} = $variables;
                    427: 			$ENV{'HTTP_USER_AGENT'} = $httpua;
                    428: 			$ENV{'HTTP_REFERER'} = $httpref;
                    429: 			if ($pid = fork()) { exit; } else {
                    430: 				if ($method eq 'POST') { # needs stdin
                    431: 					open(W, "|$raddress") || die
                    432: 						"can't POST to $raddress";
                    433: 					read(STDIN, $buf, $httpcl);
                    434: 					print W $buf;
                    435: 					exit;
                    436: 				}
                    437: 				exec "$raddress", "$variables";
                    438: 				die "exec() returned -1";
                    439: 			}
                    440: 		}
                    441: 		($x,$x,$x,$x,$x,$x,$x,$length,$x,$mtime) = stat(S);
                    442: 		$ctype = 0;
                    443: 		foreach(keys %content_types) {
                    444: 			if ($raddress =~ /\.$_$/i) {
                    445: 				$ctype = $content_types{$_};
                    446: 			}
                    447: 		}
                    448: SERVEIT:	$ctype ||= 'text/plain';
                    449: 		&htsponse(200, "OK");
                    450: 		$mtime = scalar gmtime $mtime;
                    451: 		($dow, $mon, $dt, $tm, $yr) =
                    452: 			($mtime =~ m/(...) (...) (..) (..:..:..) (....)/);
                    453: 		$dt += 0; $yr += 0;
                    454: 		&hthead("Last-Modified: $dow, $dt $mon $yr $tm GMT");
                    455: 		if ($pid = fork()) { exit; }
                    456: 		if ($virt_buffer) {
                    457: 			&htcontent($virtual_files{$address}->[2],
                    458: 				$virtual_files{$address}->[0], 0);
                    459: 		} else {
                    460: 			&htcontent("", $ctype, $length);
                    461: 			unless ($method eq 'HEAD') {
                    462: 				while(!eof(S)) {
                    463: 					read(S, $q, 16384);
                    464: 					print stdout $q;
                    465: 				}
                    466: 			}
                    467: 		}
                    468: 		alarm 0;
                    469: 	}
                    470: 	&log;
                    471: 	exit;
                    472: }
1.1       www       473: 
1.3       www       474: exit;
                    475: }
                    476: 
                    477: 
                    478: sub hterror {
                    479: 	local($errstr, $expl) = (@_);
                    480: 	&htcontent(<<"EOF", "text/html");
                    481: <html>
                    482: <body>
                    483: <h1>$errstr</h1>
                    484: $expl
                    485: <hr>
                    486: <address><a href = "http://httpi.floodgap.com/">httpi/$VERSION</a>
                    487: by Cameron Kaiser</address>
                    488: </body>
                    489: </html>
                    490: EOF
                    491: 	}
                    492: 
                    493: sub hterror404 {
                    494: 	&htsponse(404, "File Not Found");
                    495: 	&hterror("File Not Found",
                    496: 		"The resource $address was not found on this system.");
                    497: }
                    498: 
                    499: sub hterror301 {
                    500: 	&htsponse(301, "Moved Permanently");
                    501: 	&hthead("Location: @_");
                    502: 	&hterror("Resource Moved Permanently",
                    503: 		"This resource has moved <a href = \"@_\">here</a>.");
                    504: 	$keep = 0; &log; exit;
                    505: }
1.1       www       506: 
                    507: for (;;) {
1.3       www       508: 	$addr=accept(NS,S);
                    509: 	$statiosltr = scalar localtime;
                    510: 	$statiosreq++;
                    511: 	if ($pid = fork()) {
1.5       albertel  512: 		$0 = "lonhttpd: (dhttpi) waiting for child process";
1.3       www       513: 		waitpid($pid, 0);
1.6       albertel  514: 		$0 = "lonhttpd: (dhttpi) on ANY:$port_to_use, last request " .
1.3       www       515: 			scalar localtime;
1.15      albertel  516: 		close(NS);
1.3       www       517: 	} else {
1.5       albertel  518: 		$0 = "lonhttpd: (dhttpi) child switching to socket";
1.3       www       519: 		open(STDIN, "<&NS");
                    520: 		open(STDOUT, ">&NS");
                    521: 		&master;
                    522: 		exit;
                    523: 	}
1.1       www       524: }

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