io::socket::inet(3)

NAME

IO::Socket::INET - Object interface for AF_INET domain
sockets

SYNOPSIS

use IO::Socket::INET;

DESCRIPTION

"IO::Socket::INET" provides an object interface to creat
ing and using sockets in the AF_INET domain. It is built
upon the IO::Socket interface and inherits all the methods
defined by IO::Socket.

CONSTRUCTOR

new ( [ARGS] ): Creates an "IO::Socket::INET" object, which is a ref
erence 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
IO::Socket, "IO::Socket::INET" provides.

PeerAddr Remote host address <host

name>[:<port>]
PeerHost Synonym for PeerAddr
PeerPort Remote port or service <ser

vice>[(<no>)] | <no>
LocalAddr Local host bind address host

name[:port]
LocalHost Synonym for LocalAddr
LocalPort Local host bind port <ser

vice>[(<no>)] | <no>
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 (dep

recated, prefer ReuseAddr)
ReusePort Set SO_REUSEPORT before binding
Broadcast Set SO_BROADCAST before binding
Timeout Timeout value for various operations
MultiHomed Try all adresses for multi-homed hosts
Blocking Determine if connection will be block

ing mode; If "Listen" is defined then a listen socket is cre
ated, 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 or the IP-address on
the "xx.xx.xx.xx" form. The "PeerPort" can be a num
ber 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 ":".; 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::INET->new(PeerAddr =>

'www.perl.org',
PeerPort =>

'http(80)',
Proto => 'tcp');
$sock = IO::Socket::INET->new(PeerAddr => 'local
host:smtp(25)');
$sock = IO::Socket::INET->new(Listen => 5,: LocalAddr => 'local; host',
LocalPort => 9000,
Proto => 'tcp');
$sock = IO::Socket::INET->new('127.0.0.1:25');
$sock = IO::Socket::INET->new(PeerPort => 9999,: PeerAddr => in; et_ntoa(INADDR_BROADCAST),
Proto => udp,
LocalAddr => 'local; host',
Broadcast => 1 )
or die "Can't bind : $@0;
NOTE NOTE NOTE NOTE NOTE NOTE NOTE NOTE NOTE NOTE
NOTE NOTE
As of VERSION 1.18 all IO::Socket objects have aut oflush turned on by default. This was not the case with earlier releases.: NOTE NOTE NOTE NOTE NOTE NOTE NOTE NOTE NOTE NOTE; NOTE NOTE
METHODS
sockaddr (): Return the address part of the sockaddr structure for
the socket
sockport (): Return the port number that the socket is using on the
local host
sockhost (): Return the address part of the sockaddr structure for
the socket in a text form xx.xx.xx.xx
peeraddr (): Return the address part of the sockaddr structure for
the socket on the peer host
peerport (): Return the port number for the socket on the peer
host.
peerhost (): Return the address part of the sockaddr structure for
the socket on the peer host in a text form xx.xx.xx.xx

AUTHOR

Graham Barr. Currently maintained by the Perl Porters.
Please report all bugs to <perl5-porters@perl.org>.

docs.sk

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