Creates an IO::Socket::INET6 object, which is a reference to a
newly created symbol (see the Symbol package). new
optionally takes arguments, these arguments are in key-value pairs.
In addition to the key-value pairs accepted by the IO::Socket manpage,
IO::Socket::INET6 provides.
Domain Address family AF_INET | AF_INET6 | AF_UNSPEC (default)
PeerAddr Remote host address <hostname>[:<port>]
PeerHost Synonym for PeerAddr
PeerPort Remote port or service <service>[(<no>)] | <no>
PeerFlow Remote flow information
PeerScope Remote address scope
LocalAddr Local host bind address hostname[:port]
LocalHost Synonym for LocalAddr
LocalPort Local host bind port <service>[(<no>)] | <no>
LocalFlow Local host flow information
LocalScope Local host address scope
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 Listen 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.
Although it is not illegal, the use of MultiHomed 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 PeerAddr can be a hostname, the IPv6-address on the
``2001:800:40:2a05::10'' form , or the IPv4-address on the ``213.34.234.245'' form.
The PeerPort 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 PeerPort specification can also be embedded in the PeerAddr
by preceding it with a ``:'', and closing the IPv6 address on brackets ``[]'' if
necessary: ``124.678.12.34:23'',``[2a05:345f::10]:23'',``any.server.com:23''.
If Domain is not given, AF_UNSPEC is assumed, that is, both AF_INET and AF_INET6 will
be both considered when resolving DNS names. AF_INET6 has priority.
If you guess you are in trouble not reaching the peer,(the service is not available via
AF_INET6 but AF_INET) you can either try Multihomed (try any address/family until reach)
or concrete your address family (AF_INET, AF_INET6).
If Proto is not given and you specify a symbolic PeerPort port,
then the constructor will try to derive Proto from the service
name. As a last resort Proto ``tcp'' is assumed. The Type
parameter will be deduced from Proto if not specified.
If the constructor is only passed a single argument, it is assumed to
be a PeerAddr specification.
If Blocking is set to 0, the connection will be in nonblocking mode.
If not specified it defaults to 1 (blocking mode).
Examples:
$sock = IO::Socket::INET6->new(PeerAddr => 'www.perl.org',
PeerPort => 'http(80)',
Proto => 'tcp');
Suppose either you have no IPv6 connectivity or www.perl.org has no http service on IPv6. Then,
(Trying all address/families until reach)
$sock = IO::Socket::INET6->new(PeerAddr => 'www.perl.org',
PeerPort => 'http(80)',
Multihomed => 1 ,
Proto => 'tcp');
(Concrete to IPv4 protocol)
$sock = IO::Socket::INET6->new(PeerAddr => 'www.perl.org',
PeerPort => 'http(80)',
Domain => AF_INET ,
Proto => 'tcp');
$sock = IO::Socket::INET6->new(PeerAddr => 'localhost:smtp(25)');
$sock = IO::Socket::INET6->new(Listen => 5,
LocalAddr => 'localhost',
LocalPort => 9000,
Proto => 'tcp');
$sock = IO::Socket::INET6->new('[::1]:25');
$sock = IO::Socket::INET6->new(PeerPort => 9999,
PeerAddr => Socket6::inet_ntop(AF_INET6,in6addr_broadcast),
Proto => udp,
LocalAddr => 'localhost',
Broadcast => 1 )
or die "Can't bind : $@\n";
NOTE NOTE NOTE NOTE NOTE NOTE NOTE NOTE NOTE NOTE NOTE NOTE
As of VERSION 1.18 all IO::Socket objects have autoflush turned on
by default. This was not the case with earlier releases.
NOTE NOTE NOTE NOTE NOTE NOTE NOTE NOTE NOTE NOTE NOTE NOTE