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# $OpenBSD: Client.pm,v 1.3 2013/06/05 04:34:27 bluhm Exp $
# Copyright (c) 2010-2013 Alexander Bluhm <bluhm@openbsd.org>
#
# Permission to use, copy, modify, and distribute this software for any
# purpose with or without fee is hereby granted, provided that the above
# copyright notice and this permission notice appear in all copies.
#
# THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
# OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
use strict;
use warnings;
package Client;
use parent 'Proc';
use Carp;
use Socket qw(IPPROTO_TCP TCP_NODELAY);
use Socket6;
use IO::Socket;
use IO::Socket::INET6;
use constant SO_BINDANY => 0x1000;
sub new {
my $class = shift;
my %args = @_;
$args{logfile} ||= "client.log";
$args{up} ||= "Connected";
$args{down} ||= $args{alarm} ? "Alarm" :
"Shutdown|Broken pipe|Connection reset by peer";
my $self = Proc::new($class, %args);
$self->{domain}
or croak "$class domain not given";
$self->{protocol}
or croak "$class protocol not given";
$self->{connectaddr}
or croak "$class connect addr not given";
$self->{connectport} || $self->{protocol} !~ /^(tcp|udp)$/
or croak "$class connect port not given";
my $cs;
if ($self->{bindany}) {
do { local $> = 0; $cs = IO::Socket::INET6->new(
Type => $self->{socktype},
Proto => $self->{protocol},
Domain => $self->{domain},
Blocking => ($self->{nonblocking} ? 0 : 1),
) } or die ref($self), " socket connect failed: $!";
do { local $> = 0; $cs->setsockopt(SOL_SOCKET, SO_BINDANY, 1) }
or die ref($self), " setsockopt SO_BINDANY failed: $!";
my @rres = getaddrinfo($self->{bindaddr}, $self->{bindport}||0,
$self->{domain}, SOCK_STREAM, 0, AI_PASSIVE);
$cs->bind($rres[3])
or die ref($self), " bind failed: $!";
} elsif ($self->{bindaddr} || $self->{bindport}) {
do { local $> = 0; $cs = IO::Socket::INET6->new(
Type => $self->{socktype},
Proto => $self->{protocol},
Domain => $self->{domain},
Blocking => ($self->{nonblocking} ? 0 : 1),
LocalAddr => $self->{bindaddr},
LocalPort => $self->{bindport},
) } or die ref($self), " socket connect failed: $!";
}
if ($cs) {
$self->{bindaddr} = $cs->sockhost();
$self->{bindport} = $cs->sockport();
$self->{cs} = $cs;
}
return $self;
}
sub child {
my $self = shift;
my $cs = $self->{cs} || do { local $> = 0; IO::Socket::INET6->new(
Type => $self->{socktype},
Proto => $self->{protocol},
Domain => $self->{domain},
Blocking => ($self->{nonblocking} ? 0 : 1),
) } or die ref($self), " socket connect failed: $!";
if ($self->{oobinline}) {
setsockopt($cs, SOL_SOCKET, SO_OOBINLINE, pack('i', 1))
or die ref($self), " set oobinline connect failed: $!";
}
if ($self->{sndbuf}) {
setsockopt($cs, SOL_SOCKET, SO_SNDBUF,
pack('i', $self->{sndbuf}))
or die ref($self), " set sndbuf connect failed: $!";
}
if ($self->{rcvbuf}) {
setsockopt($cs, SOL_SOCKET, SO_RCVBUF,
pack('i', $self->{rcvbuf}))
or die ref($self), " set rcvbuf connect failed: $!";
}
if ($self->{protocol} eq "tcp") {
setsockopt($cs, IPPROTO_TCP, TCP_NODELAY, pack('i', 1))
or die ref($self), " set nodelay connect failed: $!";
}
my @rres = getaddrinfo($self->{connectaddr}, $self->{connectport},
$self->{domain}, SOCK_STREAM);
$cs->connect($rres[3])
or die ref($self), " connect failed: $!";
print STDERR "connect sock: ",$cs->sockhost()," ",$cs->sockport(),"\n";
print STDERR "connect peer: ",$cs->peerhost()," ",$cs->peerport(),"\n";
$self->{bindaddr} = $cs->sockhost();
$self->{bindport} = $cs->sockport();
open(STDOUT, '>&', $cs)
or die ref($self), " dup STDOUT failed: $!";
open(STDIN, '<&', $cs)
or die ref($self), " dup STDIN failed: $!";
}
1;
|
