ÿØÿà JFIF    ÿÛ „  ( %"1!%)+...383,7(-.+  -+++--++++---+-+-----+---------------+---+-++7-----ÿÀ  ß â" ÿÄ     ÿÄ H    !1AQaq"‘¡2B±ÁÑð#R“Ò Tbr‚²á3csƒ’ÂñDS¢³$CÿÄ   ÿÄ %  !1AQa"23‘ÿÚ   ? ôÿ ¨pŸªáÿ —åYõõ\?àÒü©ŠÄï¨pŸªáÿ —åYõõ\?àÓü©ŠÄá 0Ÿªáÿ Ÿå[úƒ ú®ði~TÁbqÐ8OÕpÿ ƒOò¤Oè`–RÂáœá™êi€ßÉ< FtŸI“öÌ8úDf´°å}“¾œ6  öFá°y¥jñÇh†ˆ¢ã/ÃÐ:ªcÈ "Y¡ðÑl>ÿ ”ÏËte:qž\oäŠe÷󲍷˜HT4&ÿ ÓÐü6ö®¿øþßèô Ÿ•7Ñi’•j|“ñì>b…þS?*Óôÿ ÓÐü*h¥£ír¶ü UãS炟[AÐaè[ûª•õ&õj?†Éö+EzP—WeÒírJFt ‘BŒ†Ï‡%#tE Øz ¥OÛ«!1›üä±Í™%ºÍãö]°î(–:@<‹ŒÊö×òÆt¦ãº+‡¦%ÌÁ²h´OƒJŒtMÜ>ÀÜÊw3Y´•牋4ǍýʏTì>œú=Íwhyë,¾Ôò×õ¿ßÊa»«þˆѪQ|%6ž™A õ%:øj<>É—ÿ Å_ˆCbõ¥š±ý¯Ýƒï…¶|RëócÍf溪“t.СøTÿ *Ä¿-{†çàczůŽ_–^XþŒ±miB[X±d 1,é”zEù»& î9gœf™9Ð'.;—™i}!ôšåîqêÛ٤ёý£½ÆA–àôe"A$˝Úsäÿ ÷Û #°xŸëí(l »ý3—¥5m! rt`†0~'j2(]S¦¦kv,ÚÇ l¦øJA£Šƒ J3E8ÙiŽ:cÉžúeZ°€¯\®kÖ(79«Ž:¯X”¾³Š&¡* ….‰Ž(ÜíŸ2¥ª‡×Hi²TF¤ò[¨íÈRëÉ䢍mgÑ.Ÿ<öäS0í„ǹÁU´f#Vß;Õ–…P@3ío<ä-±»Ž.L|kªÀê›fÂ6@»eu‚|ÓaÞÆŸ…¨ááå>åŠ?cKü6ùTÍÆ”†sĤÚ;H2RÚ†õ\Ö·Ÿn'¾ ñ#ºI¤Å´%çÁ­‚â7›‹qT3Iï¨ÖÚ5I7Ë!ÅOóŸ¶øÝñØôת¦$Tcö‘[«Ö³šÒ';Aþ ¸èíg A2Z"i¸vdÄ÷.iõ®§)¿]¤À†–‡É&ä{V¶iŽ”.Ó×Õÿ û?h¬Mt–íª[ÿ Ñÿ ÌV(í}=ibÔ¡›¥¢±b Lô¥‡piη_Z<‡z§èŒ)iÖwiÇ 2hÙ3·=’d÷8éŽ1¦¸c¤µ€7›7Ø ð\á)} ¹fËí›pAÃL%âc2 í§æQz¿;T8sæ°qø)QFMð‰XŒÂ±N¢aF¨…8¯!U  Z©RÊ ÖPVÄÀÍin™Ì-GˆªÅËŠ›•zË}º±ŽÍFò¹}Uw×#ä5B¤{î}Ð<ÙD é©¤&‡ïDbàÁôMÁ." ¤‡ú*õ'VŽ|¼´Úgllº¼klz[Æüï÷Aób‡Eÿ dÑ»Xx9ÃÜ£ÁT/`¼¸vI±Ýµ·Ë‚“G³þ*Ÿû´r|*}<¨îºœ @¦mÄ’M¹”.œ«Y–|6ÏU¤jç¥ÕÞqO ˜kDÆÁ¨5ÿ š;ÐЦ¦€GÙk \ –Þ=â¼=SͧµªS°ÚÍpÜãQűÀõ¬?ÃÁ1Ñ•õZà?hóœ€ L¦l{Y*K˜Ù›zc˜–ˆâ ø+¾ ­-Ök¥%ùEÜA'}ˆ><ÊIè“bpÍ/qÞâvoX€w,\úªò6Z[XdÒæ­@Ö—€$òJí#é>'°Ú ôª˜<)4ryÙ£|óAÅn5žêŸyÒäMÝ2{"}‰–¤l÷ûWX\l¾Á¸góÉOÔ /óñB¤f¸çñ[.P˜ZsÊË*ßT܈§QN¢’¡¨§V¼(Üù*eÕ“”5T¨‹Âê¥FŒã½Dü[8'Ò¥a…Ú¶k7a *•›¼'Ò·\8¨ª\@\õ¢¦íq+DÙrmÎ…_ªæ»ŠÓœ¡¯’Ré9MÅ×D™lælffc+ŒÑ,ý™ÿ ¯þǤ=Å’Á7µ÷ÚÛ/“Ü€ñýã¼àí¾ÕÑ+ƒ,uµMâÀÄbm:ÒÎPæ{˜Gz[ƒ¯«® KHà`ߨŠéí¯P8Aq.C‰ à€kòpj´kN¶qô€…Õ,ÜNŠª-­{Zö’æû44‰sŽè‰îVíRœÕm" 6?³D9¡ÇTíÅꋇ`4«¸ÝÁô ï’ýorqКÇZ«x4Žâéþuïf¹µö[P ,Q£éaX±`PÉÍZ ¸äYúg üAx ’6Lê‚xÝÓ*äQ  Ï’¨hÍ =²,6ï#rÃ<¯–£»ƒ‹,–ê•€ aÛsñ'%Æ"®ÛüìBᝠHÚ3ß°©$“XnœÖ’î2ËTeûìxîß ¦å¿çÉ ðK§þ{‘t‚Ϋ¬jéîZ[ ”š7L¥4VÚCE×]m¤Øy”ä4-dz£œ§¸x.*ãÊÊ b÷•h:©‡¦s`BTÁRû¾g⻩‹jø sF¢àJøFl‘È•Xᓁà~*j¯ +(ÚÕ6-£¯÷GŠØy‚<Ç’.F‹Hœw(+)ÜÜâÈzÄäT§FߘãÏ;DmVœ3Àu@mÚüXÝü•3B¨òÌÁÛ<·ÃÜ z,Ì@õÅ·d2]ü8s÷IôÞ¯^Ç9¢u„~ëAŸï4«M? 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All rights reserved. # This program is free software; you can redistribute it and/or # modify it under the same terms as Perl itself. package IO::Socket::INET; use strict; use IO::Socket; use Socket; use Carp; use Exporter; use Errno; our @ISA = qw(IO::Socket); our $VERSION = "1.40"; my $EINVAL = exists(&Errno::EINVAL) ? Errno::EINVAL() : 1; IO::Socket::INET->register_domain( AF_INET ); my %socket_type = ( tcp => SOCK_STREAM, udp => SOCK_DGRAM, icmp => SOCK_RAW ); my %proto_number; $proto_number{tcp} = Socket::IPPROTO_TCP() if defined &Socket::IPPROTO_TCP; $proto_number{udp} = Socket::IPPROTO_UDP() if defined &Socket::IPPROTO_UDP; $proto_number{icmp} = Socket::IPPROTO_ICMP() if defined &Socket::IPPROTO_ICMP; my %proto_name = reverse %proto_number; sub new { my $class = shift; unshift(@_, "PeerAddr") if @_ == 1; return $class->SUPER::new(@_); } sub _cache_proto { my @proto = @_; for (map lc($_), $proto[0], split(' ', $proto[1])) { $proto_number{$_} = $proto[2]; } $proto_name{$proto[2]} = $proto[0]; } sub _get_proto_number { my $name = lc(shift); return undef unless defined $name; return $proto_number{$name} if exists $proto_number{$name}; my @proto = eval { getprotobyname($name) }; return undef unless @proto; _cache_proto(@proto); return $proto[2]; } sub _get_proto_name { my $num = shift; return undef unless defined $num; return $proto_name{$num} if exists $proto_name{$num}; my @proto = eval { getprotobynumber($num) }; return undef unless @proto; _cache_proto(@proto); return $proto[0]; } sub _sock_info { my($addr,$port,$proto) = @_; my $origport = $port; my @serv = (); $port = $1 if(defined $addr && $addr =~ s,:([\w\(\)/]+)$,,); if(defined $proto && $proto =~ /\D/) { my $num = _get_proto_number($proto); unless (defined $num) { $@ = "Bad protocol '$proto'"; return; } $proto = $num; } if(defined $port) { my $defport = ($port =~ s,\((\d+)\)$,,) ? $1 : undef; my $pnum = ($port =~ m,^(\d+)$,)[0]; @serv = getservbyname($port, _get_proto_name($proto) || "") if ($port =~ m,\D,); $port = $serv[2] || $defport || $pnum; unless (defined $port) { $@ = "Bad service '$origport'"; return; } $proto = _get_proto_number($serv[3]) if @serv && !$proto; } return ($addr || undef, $port || undef, $proto || undef ); } sub _error { my $sock = shift; my $err = shift; { local($!); my $title = ref($sock).": "; $@ = join("", $_[0] =~ /^$title/ ? "" : $title, @_); $sock->close() if(defined fileno($sock)); } $! = $err; return undef; } sub _get_addr { my($sock,$addr_str, $multi) = @_; my @addr; if ($multi && $addr_str !~ /^\d+(?:\.\d+){3}$/) { (undef, undef, undef, undef, @addr) = gethostbyname($addr_str); } else { my $h = inet_aton($addr_str); push(@addr, $h) if defined $h; } @addr; } sub configure { my($sock,$arg) = @_; my($lport,$rport,$laddr,$raddr,$proto,$type); $arg->{LocalAddr} = $arg->{LocalHost} if exists $arg->{LocalHost} && !exists $arg->{LocalAddr}; ($laddr,$lport,$proto) = _sock_info($arg->{LocalAddr}, $arg->{LocalPort}, $arg->{Proto}) or return _error($sock, $!, $@); $laddr = defined $laddr ? inet_aton($laddr) : INADDR_ANY; return _error($sock, $EINVAL, "Bad hostname '",$arg->{LocalAddr},"'") unless(defined $laddr); $arg->{PeerAddr} = $arg->{PeerHost} if exists $arg->{PeerHost} && !exists $arg->{PeerAddr}; unless(exists $arg->{Listen}) { ($raddr,$rport,$proto) = _sock_info($arg->{PeerAddr}, $arg->{PeerPort}, $proto) or return _error($sock, $!, $@); } $proto ||= _get_proto_number('tcp'); $type = $arg->{Type} || $socket_type{lc _get_proto_name($proto)}; my @raddr = (); if(defined $raddr) { @raddr = $sock->_get_addr($raddr, $arg->{MultiHomed}); return _error($sock, $EINVAL, "Bad hostname '",$arg->{PeerAddr},"'") unless @raddr; } while(1) { $sock->socket(AF_INET, $type, $proto) or return _error($sock, $!, "$!"); if (defined $arg->{Blocking}) { defined $sock->blocking($arg->{Blocking}) or return _error($sock, $!, "$!"); } if ($arg->{Reuse} || $arg->{ReuseAddr}) { $sock->sockopt(SO_REUSEADDR,1) or return _error($sock, $!, "$!"); } if ($arg->{ReusePort}) { $sock->sockopt(SO_REUSEPORT,1) or return _error($sock, $!, "$!"); } if ($arg->{Broadcast}) { $sock->sockopt(SO_BROADCAST,1) or return _error($sock, $!, "$!"); } if($lport || ($laddr ne INADDR_ANY) || exists $arg->{Listen}) { $sock->bind($lport || 0, $laddr) or return _error($sock, $!, "$!"); } if(exists $arg->{Listen}) { $sock->listen($arg->{Listen} || 5) or return _error($sock, $!, "$!"); last; } # don't try to connect unless we're given a PeerAddr last unless exists($arg->{PeerAddr}); $raddr = shift @raddr; return _error($sock, $EINVAL, 'Cannot determine remote port') unless($rport || $type == SOCK_DGRAM || $type == SOCK_RAW); last unless($type == SOCK_STREAM || defined $raddr); return _error($sock, $EINVAL, "Bad hostname '",$arg->{PeerAddr},"'") unless defined $raddr; # my $timeout = ${*$sock}{'io_socket_timeout'}; # my $before = time() if $timeout; undef $@; if ($sock->connect(pack_sockaddr_in($rport, $raddr))) { # ${*$sock}{'io_socket_timeout'} = $timeout; return $sock; } return _error($sock, $!, $@ || "Timeout") unless @raddr; # if ($timeout) { # my $new_timeout = $timeout - (time() - $before); # return _error($sock, # (exists(&Errno::ETIMEDOUT) ? Errno::ETIMEDOUT() : $EINVAL), # "Timeout") if $new_timeout <= 0; # ${*$sock}{'io_socket_timeout'} = $new_timeout; # } } $sock; } sub connect { @_ == 2 || @_ == 3 or croak 'usage: $sock->connect(NAME) or $sock->connect(PORT, ADDR)'; my $sock = shift; return $sock->SUPER::connect(@_ == 1 ? shift : pack_sockaddr_in(@_)); } sub bind { @_ == 2 || @_ == 3 or croak 'usage: $sock->bind(NAME) or $sock->bind(PORT, ADDR)'; my $sock = shift; return $sock->SUPER::bind(@_ == 1 ? shift : pack_sockaddr_in(@_)) } sub sockaddr { @_ == 1 or croak 'usage: $sock->sockaddr()'; my($sock) = @_; my $name = $sock->sockname; $name ? (sockaddr_in($name))[1] : undef; } sub sockport { @_ == 1 or croak 'usage: $sock->sockport()'; my($sock) = @_; my $name = $sock->sockname; $name ? (sockaddr_in($name))[0] : undef; } sub sockhost { @_ == 1 or croak 'usage: $sock->sockhost()'; my($sock) = @_; my $addr = $sock->sockaddr; $addr ? inet_ntoa($addr) : undef; } sub peeraddr { @_ == 1 or croak 'usage: $sock->peeraddr()'; my($sock) = @_; my $name = $sock->peername; $name ? (sockaddr_in($name))[1] : undef; } sub peerport { @_ == 1 or croak 'usage: $sock->peerport()'; my($sock) = @_; my $name = $sock->peername; $name ? (sockaddr_in($name))[0] : undef; } sub peerhost { @_ == 1 or croak 'usage: $sock->peerhost()'; my($sock) = @_; my $addr = $sock->peeraddr; $addr ? inet_ntoa($addr) : undef; } 1; __END__ =head1 NAME IO::Socket::INET - Object interface for AF_INET domain sockets =head1 SYNOPSIS use IO::Socket::INET; =head1 DESCRIPTION C provides an object interface to creating and using sockets in the AF_INET domain. It is built upon the L interface and inherits all the methods defined by L. =head1 CONSTRUCTOR =over 4 =item new ( [ARGS] ) Creates an C object, which is a reference to a newly created symbol (see the C package). C optionally takes arguments, these arguments are in key-value pairs. In addition to the key-value pairs accepted by L, C provides. PeerAddr Remote host address [:] PeerHost Synonym for PeerAddr PeerPort Remote port or service [()] | LocalAddr Local host bind address hostname[:port] LocalHost Synonym for LocalAddr LocalPort Local host bind port [()] | Proto Protocol name (or number) "tcp" | "udp" | ... Type Socket type SOCK_STREAM | SOCK_DGRAM | ... Listen Queue size for listen ReuseAddr Set SO_REUSEADDR before binding Reuse Set SO_REUSEADDR before binding (deprecated, prefer ReuseAddr) ReusePort Set SO_REUSEPORT before binding Broadcast Set SO_BROADCAST before binding Timeout Timeout value for various operations MultiHomed Try all addresses for multi-homed hosts Blocking Determine if connection will be blocking mode If C is defined then a listen socket is created, else if the socket type, which is derived from the protocol, is SOCK_STREAM then connect() is called. If the C argument is given, but false, the queue size will be set to 5. Although it is not illegal, the use of C on a socket which is in non-blocking mode is of little use. This is because the first connect will never fail with a timeout as the connect call will not block. The C can be a hostname or the IP-address on the "xx.xx.xx.xx" form. The C can be a number or a symbolic service name. The service name might be followed by a number in parenthesis which is used if the service is not known by the system. The C specification can also be embedded in the C by preceding it with a ":". If C is not given and you specify a symbolic C port, then the constructor will try to derive C from the service name. As a last resort C "tcp" is assumed. The C parameter will be deduced from C if not specified. If the constructor is only passed a single argument, it is assumed to be a C specification. If C is set to 0, the connection will be in nonblocking mode. If not specified it defaults to 1 (blocking mode). Examples: $sock = IO::Socket::INET->new(PeerAddr => 'www.perl.org', PeerPort => 'http(80)', Proto => 'tcp'); $sock = IO::Socket::INET->new(PeerAddr => 'localhost:smtp(25)'); $sock = IO::Socket::INET->new(Listen => 5, LocalAddr => 'localhost', LocalPort => 9000, Proto => 'tcp'); $sock = IO::Socket::INET->new('127.0.0.1:25'); $sock = IO::Socket::INET->new( PeerPort => 9999, PeerAddr => inet_ntoa(INADDR_BROADCAST), Proto => udp, LocalAddr => 'localhost', Broadcast => 1 ) or die "Can't bind : $@\n"; B As of VERSION 1.18 all IO::Socket objects have autoflush turned on by default. This was not the case with earlier releases. B =back =head2 METHODS =over 4 =item sockaddr () Return the address part of the sockaddr structure for the socket =item sockport () Return the port number that the socket is using on the local host =item sockhost () Return the address part of the sockaddr structure for the socket in a text form xx.xx.xx.xx =item peeraddr () Return the address part of the sockaddr structure for the socket on the peer host =item peerport () Return the port number for the socket on the peer host. =item peerhost () Return the address part of the sockaddr structure for the socket on the peer host in a text form xx.xx.xx.xx =back =head1 SEE ALSO L, L =head1 AUTHOR Graham Barr. Currently maintained by the Perl Porters. Please report all bugs to . =head1 COPYRIGHT Copyright (c) 1996-8 Graham Barr . All rights reserved. This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself. =cut