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Try to keep the ordering # consistent so it's easier to see which ones are or aren't documented. our @EXPORT = qw( PF_802 PF_AAL PF_APPLETALK PF_CCITT PF_CHAOS PF_CTF PF_DATAKIT PF_DECnet PF_DLI PF_ECMA PF_GOSIP PF_HYLINK PF_IMPLINK PF_INET PF_INET6 PF_ISO PF_KEY PF_LAST PF_LAT PF_LINK PF_MAX PF_NBS PF_NIT PF_NS PF_OSI PF_OSINET PF_PUP PF_ROUTE PF_SNA PF_UNIX PF_UNSPEC PF_USER PF_WAN PF_X25 AF_802 AF_AAL AF_APPLETALK AF_CCITT AF_CHAOS AF_CTF AF_DATAKIT AF_DECnet AF_DLI AF_ECMA AF_GOSIP AF_HYLINK AF_IMPLINK AF_INET AF_INET6 AF_ISO AF_KEY AF_LAST AF_LAT AF_LINK AF_MAX AF_NBS AF_NIT AF_NS AF_OSI AF_OSINET AF_PUP AF_ROUTE AF_SNA AF_UNIX AF_UNSPEC AF_USER AF_WAN AF_X25 SOCK_DGRAM SOCK_RAW SOCK_RDM SOCK_SEQPACKET SOCK_STREAM SOL_SOCKET SO_ACCEPTCONN SO_ATTACH_FILTER SO_BACKLOG SO_BROADCAST SO_CHAMELEON SO_DEBUG SO_DETACH_FILTER SO_DGRAM_ERRIND SO_DOMAIN SO_DONTLINGER SO_DONTROUTE SO_ERROR SO_FAMILY SO_KEEPALIVE SO_LINGER SO_OOBINLINE SO_PASSCRED SO_PASSIFNAME SO_PEERCRED SO_PROTOCOL SO_PROTOTYPE SO_RCVBUF SO_RCVLOWAT SO_RCVTIMEO SO_REUSEADDR SO_REUSEPORT SO_SECURITY_AUTHENTICATION SO_SECURITY_ENCRYPTION_NETWORK SO_SECURITY_ENCRYPTION_TRANSPORT SO_SNDBUF SO_SNDLOWAT SO_SNDTIMEO SO_STATE SO_TYPE SO_USELOOPBACK SO_XOPEN SO_XSE IP_HDRINCL IP_OPTIONS IP_RECVOPTS IP_RECVRETOPTS IP_RETOPTS IP_TOS IP_TTL MSG_BCAST MSG_BTAG MSG_CTLFLAGS MSG_CTLIGNORE MSG_CTRUNC MSG_DONTROUTE MSG_DONTWAIT MSG_EOF MSG_EOR MSG_ERRQUEUE MSG_ETAG MSG_FASTOPEN MSG_FIN MSG_MAXIOVLEN MSG_MCAST MSG_NOSIGNAL MSG_OOB MSG_PEEK MSG_PROXY MSG_RST MSG_SYN MSG_TRUNC MSG_URG MSG_WAITALL MSG_WIRE SHUT_RD SHUT_RDWR SHUT_WR INADDR_ANY INADDR_BROADCAST INADDR_LOOPBACK INADDR_NONE SCM_CONNECT SCM_CREDENTIALS SCM_CREDS SCM_RIGHTS SCM_TIMESTAMP SOMAXCONN IOV_MAX UIO_MAXIOV sockaddr_family pack_sockaddr_in unpack_sockaddr_in sockaddr_in pack_sockaddr_in6 unpack_sockaddr_in6 sockaddr_in6 pack_sockaddr_un unpack_sockaddr_un sockaddr_un inet_aton inet_ntoa ); # List re-ordered to match documentation above. Try to keep the ordering # consistent so it's easier to see which ones are or aren't documented. our @EXPORT_OK = qw( CR LF CRLF $CR $LF $CRLF SOCK_NONBLOCK SOCK_CLOEXEC IP_ADD_MEMBERSHIP IP_ADD_SOURCE_MEMBERSHIP IP_BIND_ADDRESS_NO_PORT IP_DROP_MEMBERSHIP IP_DROP_SOURCE_MEMBERSHIP IP_FREEBIND IP_MULTICAST_ALL IP_MULTICAST_IF IP_MULTICAST_LOOP IP_MULTICAST_TTL IP_MTU IP_MTU_DISCOVER IP_NODEFRAG IP_RECVERR IP_TRANSPARENT IPPROTO_IP IPPROTO_IPV6 IPPROTO_RAW IPPROTO_ICMP IPPROTO_IGMP IPPROTO_TCP IPPROTO_UDP IPPROTO_GRE IPPROTO_ESP IPPROTO_AH IPPROTO_ICMPV6 IPPROTO_SCTP IP_PMTUDISC_DO IP_PMTUDISC_DONT IP_PMTUDISC_PROBE IP_PMTUDISC_WANT IPTOS_LOWDELAY IPTOS_THROUGHPUT IPTOS_RELIABILITY IPTOS_MINCOST TCP_CONGESTION TCP_CONNECTIONTIMEOUT TCP_CORK TCP_DEFER_ACCEPT TCP_FASTOPEN TCP_INFO TCP_INIT_CWND TCP_KEEPALIVE TCP_KEEPCNT TCP_KEEPIDLE TCP_KEEPINTVL TCP_LINGER2 TCP_MAXRT TCP_MAXSEG TCP_MD5SIG TCP_NODELAY TCP_NOOPT TCP_NOPUSH TCP_QUICKACK TCP_SACK_ENABLE TCP_STDURG TCP_SYNCNT TCP_USER_TIMEOUT TCP_WINDOW_CLAMP IN6ADDR_ANY IN6ADDR_LOOPBACK IPV6_ADDRFROM IPV6_ADD_MEMBERSHIP IPV6_DROP_MEMBERSHIP IPV6_JOIN_GROUP IPV6_LEAVE_GROUP IPV6_MTU IPV6_MTU_DISCOVER IPV6_MULTICAST_HOPS IPV6_MULTICAST_IF IPV6_MULTICAST_LOOP IPV6_RECVERR IPV6_ROUTER_ALERT IPV6_UNICAST_HOPS IPV6_V6ONLY SO_LOCK_FILTER SO_RCVBUFFORCE SO_SNDBUFFORCE pack_ip_mreq unpack_ip_mreq pack_ip_mreq_source unpack_ip_mreq_source pack_ipv6_mreq unpack_ipv6_mreq inet_pton inet_ntop getaddrinfo getnameinfo AI_ADDRCONFIG AI_ALL AI_CANONIDN AI_CANONNAME AI_IDN AI_IDN_ALLOW_UNASSIGNED AI_IDN_USE_STD3_ASCII_RULES AI_NUMERICHOST AI_NUMERICSERV AI_PASSIVE AI_V4MAPPED NI_DGRAM NI_IDN NI_IDN_ALLOW_UNASSIGNED NI_IDN_USE_STD3_ASCII_RULES NI_NAMEREQD NI_NOFQDN NI_NUMERICHOST NI_NUMERICSERV NIx_NOHOST NIx_NOSERV EAI_ADDRFAMILY EAI_AGAIN EAI_BADFLAGS EAI_BADHINTS EAI_FAIL EAI_FAMILY EAI_NODATA EAI_NONAME EAI_PROTOCOL EAI_SERVICE EAI_SOCKTYPE EAI_SYSTEM ); our %EXPORT_TAGS = ( crlf => [qw(CR LF CRLF $CR $LF $CRLF)], addrinfo => [qw(getaddrinfo getnameinfo), grep m/^(?:AI|NI|NIx|EAI)_/, @EXPORT_OK], all => [@EXPORT, @EXPORT_OK], ); BEGIN { sub CR () {"\015"} sub LF () {"\012"} sub CRLF () {"\015\012"} # These are not gni() constants; they're extensions for the perl API # The definitions in Socket.pm and Socket.xs must match sub NIx_NOHOST() {1 << 0} sub NIx_NOSERV() {1 << 1} } *CR = \CR(); *LF = \LF(); *CRLF = \CRLF(); sub sockaddr_in { if (@_ == 6 && !wantarray) { # perl5.001m compat; use this && die my($af, $port, @quad) = @_; warnings::warn "6-ARG sockaddr_in call is deprecated" if warnings::enabled(); pack_sockaddr_in($port, inet_aton(join('.', @quad))); } elsif (wantarray) { croak "usage: (port,iaddr) = sockaddr_in(sin_sv)" unless @_ == 1; unpack_sockaddr_in(@_); } else { croak "usage: sin_sv = sockaddr_in(port,iaddr))" unless @_ == 2; pack_sockaddr_in(@_); } } sub sockaddr_in6 { if (wantarray) { croak "usage: (port,in6addr,scope_id,flowinfo) = sockaddr_in6(sin6_sv)" unless @_ == 1; unpack_sockaddr_in6(@_); } else { croak "usage: sin6_sv = sockaddr_in6(port,in6addr,[scope_id,[flowinfo]])" unless @_ >= 2 and @_ <= 4; pack_sockaddr_in6(@_); } } sub sockaddr_un { if (wantarray) { croak "usage: (filename) = sockaddr_un(sun_sv)" unless @_ == 1; unpack_sockaddr_un(@_); } else { croak "usage: sun_sv = sockaddr_un(filename)" unless @_ == 1; pack_sockaddr_un(@_); } } XSLoader::load(__PACKAGE__, $VERSION); my %errstr; if( defined &getaddrinfo ) { # These are not part of the API, nothing uses them, and deleting them # reduces the size of %Socket:: by about 12K delete $Socket::{fake_getaddrinfo}; delete $Socket::{fake_getnameinfo}; } else { require Scalar::Util; *getaddrinfo = \&fake_getaddrinfo; *getnameinfo = \&fake_getnameinfo; # These numbers borrowed from GNU libc's implementation, but since # they're only used by our emulation, it doesn't matter if the real # platform's values differ my %constants = ( AI_PASSIVE => 1, AI_CANONNAME => 2, AI_NUMERICHOST => 4, AI_V4MAPPED => 8, AI_ALL => 16, AI_ADDRCONFIG => 32, # RFC 2553 doesn't define this but Linux does - lets be nice and # provide it since we can AI_NUMERICSERV => 1024, EAI_BADFLAGS => -1, EAI_NONAME => -2, EAI_NODATA => -5, EAI_FAMILY => -6, EAI_SERVICE => -8, NI_NUMERICHOST => 1, NI_NUMERICSERV => 2, NI_NOFQDN => 4, NI_NAMEREQD => 8, NI_DGRAM => 16, # Constants we don't support. Export them, but croak if anyone tries to # use them AI_IDN => 64, AI_CANONIDN => 128, AI_IDN_ALLOW_UNASSIGNED => 256, AI_IDN_USE_STD3_ASCII_RULES => 512, NI_IDN => 32, NI_IDN_ALLOW_UNASSIGNED => 64, NI_IDN_USE_STD3_ASCII_RULES => 128, # Error constants we'll never return, so it doesn't matter what value # these have, nor that we don't provide strings for them EAI_SYSTEM => -11, EAI_BADHINTS => -1000, EAI_PROTOCOL => -1001 ); foreach my $name ( keys %constants ) { my $value = $constants{$name}; no strict 'refs'; defined &$name or *$name = sub () { $value }; } %errstr = ( # These strings from RFC 2553 EAI_BADFLAGS() => "invalid value for ai_flags", EAI_NONAME() => "nodename nor servname provided, or not known", EAI_NODATA() => "no address associated with nodename", EAI_FAMILY() => "ai_family not supported", EAI_SERVICE() => "servname not supported for ai_socktype", ); } # The following functions are used if the system does not have a # getaddrinfo(3) function in libc; and are used to emulate it for the AF_INET # family # Borrowed from Regexp::Common::net my $REGEXP_IPv4_DECIMAL = qr/25[0-5]|2[0-4][0-9]|[0-1]?[0-9]{1,2}/; my $REGEXP_IPv4_DOTTEDQUAD = qr/$REGEXP_IPv4_DECIMAL\.$REGEXP_IPv4_DECIMAL\.$REGEXP_IPv4_DECIMAL\.$REGEXP_IPv4_DECIMAL/; sub fake_makeerr { my ( $errno ) = @_; my $errstr = $errno == 0 ? "" : ( $errstr{$errno} || $errno ); return Scalar::Util::dualvar( $errno, $errstr ); } sub fake_getaddrinfo { my ( $node, $service, $hints ) = @_; $node = "" unless defined $node; $service = "" unless defined $service; my ( $family, $socktype, $protocol, $flags ) = @$hints{qw( family socktype protocol flags )}; $family ||= Socket::AF_INET(); # 0 == AF_UNSPEC, which we want too $family == Socket::AF_INET() or return fake_makeerr( EAI_FAMILY() ); $socktype ||= 0; $protocol ||= 0; $flags ||= 0; my $flag_passive = $flags & AI_PASSIVE(); $flags &= ~AI_PASSIVE(); my $flag_canonname = $flags & AI_CANONNAME(); $flags &= ~AI_CANONNAME(); my $flag_numerichost = $flags & AI_NUMERICHOST(); $flags &= ~AI_NUMERICHOST(); my $flag_numericserv = $flags & AI_NUMERICSERV(); $flags &= ~AI_NUMERICSERV(); # These constants don't apply to AF_INET-only lookups, so we might as well # just ignore them. For AI_ADDRCONFIG we just presume the host has ability # to talk AF_INET. If not we'd have to return no addresses at all. :) $flags &= ~(AI_V4MAPPED()|AI_ALL()|AI_ADDRCONFIG()); $flags & (AI_IDN()|AI_CANONIDN()|AI_IDN_ALLOW_UNASSIGNED()|AI_IDN_USE_STD3_ASCII_RULES()) and croak "Socket::getaddrinfo() does not support IDN"; $flags == 0 or return fake_makeerr( EAI_BADFLAGS() ); $node eq "" and $service eq "" and return fake_makeerr( EAI_NONAME() ); my $canonname; my @addrs; if( $node ne "" ) { return fake_makeerr( EAI_NONAME() ) if( $flag_numerichost and $node !~ m/^$REGEXP_IPv4_DOTTEDQUAD$/ ); ( $canonname, undef, undef, undef, @addrs ) = gethostbyname( $node ); defined $canonname or return fake_makeerr( EAI_NONAME() ); undef $canonname unless $flag_canonname; } else { $addrs[0] = $flag_passive ? Socket::inet_aton( "0.0.0.0" ) : Socket::inet_aton( "127.0.0.1" ); } my @ports; # Actually ARRAYrefs of [ socktype, protocol, port ] my $protname = ""; if( $protocol ) { $protname = eval { getprotobynumber( $protocol ) }; } if( $service ne "" and $service !~ m/^\d+$/ ) { return fake_makeerr( EAI_NONAME() ) if( $flag_numericserv ); getservbyname( $service, $protname ) or return fake_makeerr( EAI_SERVICE() ); } foreach my $this_socktype ( Socket::SOCK_STREAM(), Socket::SOCK_DGRAM(), Socket::SOCK_RAW() ) { next if $socktype and $this_socktype != $socktype; my $this_protname = "raw"; $this_socktype == Socket::SOCK_STREAM() and $this_protname = "tcp"; $this_socktype == Socket::SOCK_DGRAM() and $this_protname = "udp"; next if $protname and $this_protname ne $protname; my $port; if( $service ne "" ) { if( $service =~ m/^\d+$/ ) { $port = "$service"; } else { ( undef, undef, $port, $this_protname ) = getservbyname( $service, $this_protname ); next unless defined $port; } } else { $port = 0; } push @ports, [ $this_socktype, eval { scalar getprotobyname( $this_protname ) } || 0, $port ]; } my @ret; foreach my $addr ( @addrs ) { foreach my $portspec ( @ports ) { my ( $socktype, $protocol, $port ) = @$portspec; push @ret, { family => $family, socktype => $socktype, protocol => $protocol, addr => Socket::pack_sockaddr_in( $port, $addr ), canonname => undef, }; } } # Only supply canonname for the first result if( defined $canonname ) { $ret[0]->{canonname} = $canonname; } return ( fake_makeerr( 0 ), @ret ); } sub fake_getnameinfo { my ( $addr, $flags, $xflags ) = @_; my ( $port, $inetaddr ); eval { ( $port, $inetaddr ) = Socket::unpack_sockaddr_in( $addr ) } or return fake_makeerr( EAI_FAMILY() ); my $family = Socket::AF_INET(); $flags ||= 0; my $flag_numerichost = $flags & NI_NUMERICHOST(); $flags &= ~NI_NUMERICHOST(); my $flag_numericserv = $flags & NI_NUMERICSERV(); $flags &= ~NI_NUMERICSERV(); my $flag_nofqdn = $flags & NI_NOFQDN(); $flags &= ~NI_NOFQDN(); my $flag_namereqd = $flags & NI_NAMEREQD(); $flags &= ~NI_NAMEREQD(); my $flag_dgram = $flags & NI_DGRAM() ; $flags &= ~NI_DGRAM(); $flags & (NI_IDN()|NI_IDN_ALLOW_UNASSIGNED()|NI_IDN_USE_STD3_ASCII_RULES()) and croak "Socket::getnameinfo() does not support IDN"; $flags == 0 or return fake_makeerr( EAI_BADFLAGS() ); $xflags ||= 0; my $node; if( $xflags & NIx_NOHOST ) { $node = undef; } elsif( $flag_numerichost ) { $node = Socket::inet_ntoa( $inetaddr ); } else { $node = gethostbyaddr( $inetaddr, $family ); if( !defined $node ) { return fake_makeerr( EAI_NONAME() ) if $flag_namereqd; $node = Socket::inet_ntoa( $inetaddr ); } elsif( $flag_nofqdn ) { my ( $shortname ) = split m/\./, $node; my ( $fqdn ) = gethostbyname $shortname; $node = $shortname if defined $fqdn and $fqdn eq $node; } } my $service; if( $xflags & NIx_NOSERV ) { $service = undef; } elsif( $flag_numericserv ) { $service = "$port"; } else { my $protname = $flag_dgram ? "udp" : ""; $service = getservbyport( $port, $protname ); if( !defined $service ) { $service = "$port"; } } return ( fake_makeerr( 0 ), $node, $service ); } 1;