# IO::Socket::INET.pm
#
# Copyright (c) 1997-8 Graham Barr <gbarr@pobox.com>. All rights reserved.
# modify it under the same terms as Perl itself.
use strict;
use Socket;
use Carp;
use Exporter;
use Errno;
$VERSION = "1.27";
udp => SOCK_DGRAM,
);
sub new {
my $class = shift;
unshift(@_, "PeerAddr") if @_ == 1;
}
sub _sock_info {
my @proto = ();
my @serv = ();
$port = $1
}
else {
$@ = "Bad protocol '$proto'";
return;
}
}
if(defined $port) {
if ($port =~ m,\D,);
unless (defined $port) {
$@ = "Bad service '$origport'";
return;
}
}
return ($addr || undef,
$port || undef,
$proto || undef
);
}
sub _error {
my $sock = shift;
my $err = shift;
{
local($!);
close($sock)
if(defined fileno($sock));
}
$! = $err;
return undef;
}
sub _get_addr {
my @addr;
} else {
push(@addr, $h) if defined $h;
}
@addr;
}
sub configure {
: INADDR_ANY;
unless(defined $laddr);
$proto)
}
my @raddr = ();
if(defined $raddr) {
unless @raddr;
}
while(1) {
}
}
}
}
}
last;
}
# don't try to connect unless we're given a PeerAddr
last
unless defined $raddr;
# my $timeout = ${*$sock}{'io_socket_timeout'};
# my $before = time() if $timeout;
undef $@;
# ${*$sock}{'io_socket_timeout'} = $timeout;
return $sock;
}
unless @raddr;
# if ($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;
}
sub bind {
@_ == 2 || @_ == 3 or
croak 'usage: $sock->bind(NAME) or $sock->bind(PORT, ADDR)';
my $sock = shift;
}
sub sockaddr {
@_ == 1 or croak 'usage: $sock->sockaddr()';
my($sock) = @_;
}
sub sockport {
@_ == 1 or croak 'usage: $sock->sockport()';
my($sock) = @_;
}
sub sockhost {
@_ == 1 or croak 'usage: $sock->sockhost()';
my($sock) = @_;
}
sub peeraddr {
@_ == 1 or croak 'usage: $sock->peeraddr()';
my($sock) = @_;
}
sub peerport {
@_ == 1 or croak 'usage: $sock->peerport()';
my($sock) = @_;
}
sub peerhost {
@_ == 1 or croak 'usage: $sock->peerhost()';
my($sock) = @_;
}
1;
=head1 NAME
IO::Socket::INET - Object interface for AF_INET domain sockets
=head1 SYNOPSIS
use IO::Socket::INET;
=head1 DESCRIPTION
C<IO::Socket::INET> provides an object interface to creating and using sockets
in the AF_INET domain. It is built upon the L<IO::Socket> interface and
inherits all the methods defined by L<IO::Socket>.
=head1 CONSTRUCTOR
=over 4
=item new ( [ARGS] )
Creates an C<IO::Socket::INET> object, which is a reference to a
newly created symbol (see the C<Symbol> package). C<new>
optionally takes arguments, these arguments are in key-value pairs.
In addition to the key-value pairs accepted by L<IO::Socket>,
C<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 adresses for multi-homed hosts
Blocking Determine if connection will be blocking mode
If C<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 C<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 C<PeerAddr> can be a hostname or the IP-address on the
"xx.xx.xx.xx" form. The C<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 C<PeerPort> specification can also be embedded in the C<PeerAddr>
by preceding it with a ":".
If C<Proto> is not given and you specify a symbolic C<PeerPort> port,
then the constructor will try to derive C<Proto> from the service
name. As a last resort C<Proto> "tcp" is assumed. The C<Type>
parameter will be deduced from C<Proto> if not specified.
If the constructor is only passed a single argument, it is assumed to
be a C<PeerAddr> specification.
If C<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
=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<Socket>, L<IO::Socket>
=head1 AUTHOR
Graham Barr. Currently maintained by the Perl Porters. Please report all
bugs to <perl5-porters@perl.org>.
=head1 COPYRIGHT
Copyright (c) 1996-8 Graham Barr <gbarr@pobox.com>. All rights reserved.
modify it under the same terms as Perl itself.
=cut