io::socket::inet(3pm)

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 creating 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 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 IO::Socket,
"IO::Socket::INET" provides.

PeerAddr Remote host address <hostname>[:<port>]
PeerHost Synonym for PeerAddr
PeerPort Remote port or service <service>[(<no>)] | <no> LocalAddr Local host bind address hostname[:port]
LocalHost Synonym for LocalAddr
LocalPort Local host bind port <service>[(<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 (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 or the IP-address on the
"xx.xx.xx.xx" 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 ":".; 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 => '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";
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
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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