/usr/share/perl5/IO/All/Socket.pm is in libio-all-perl 0.86-2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 | use strict; use warnings;
package IO::All::Socket;
use IO::All -base;
use IO::Socket;
const type => 'socket';
field _listen => undef;
option 'fork';
const domain_default => 'localhost';
chain domain => undef;
chain port => undef;
proxy_open 'recv';
proxy_open 'send';
sub socket {
my $self = shift;
bless $self, __PACKAGE__;
$self->name(shift) if @_;
return $self->_init;
}
sub socket_handle {
my $self = shift;
bless $self, __PACKAGE__;
$self->_handle(shift) if @_;
return $self->_init;
}
sub accept {
my $self = shift;
use POSIX ":sys_wait_h";
sub REAPER {
while (waitpid(-1, WNOHANG) > 0) {}
$SIG{CHLD} = \&REAPER;
}
local $SIG{CHLD};
$self->_listen(1);
$self->_assert_open;
my $server = $self->io_handle;
my $socket;
while (1) {
$socket = $server->accept;
last unless $self->_fork;
next unless defined $socket;
$SIG{CHLD} = \&REAPER;
my $pid = CORE::fork;
$self->throw("Unable to fork for IO::All::accept")
unless defined $pid;
last unless $pid;
close $socket;
undef $socket;
}
close $server if $self->_fork;
my $io = ref($self)->new->socket_handle($socket);
$io->io_handle($socket);
$io->is_open(1);
return $io;
}
sub shutdown {
my $self = shift;
my $how = @_ ? shift : 2;
my $handle = $self->io_handle;
$handle->shutdown(2)
if defined $handle;
}
sub _assert_open {
my $self = shift;
return if $self->is_open;
$self->mode(shift) unless $self->mode;
$self->open;
}
sub open {
my $self = shift;
return if $self->is_open;
$self->is_open(1);
$self->get_socket_domain_port;
my @args = $self->_listen
? (
LocalAddr => $self->domain,
LocalPort => $self->port,
Proto => 'tcp',
Listen => 1,
Reuse => 1,
)
: (
PeerAddr => $self->domain,
PeerPort => $self->port,
Proto => 'tcp',
);
my $socket = IO::Socket::INET->new(@args)
or $self->throw("Can't open socket");
$self->io_handle($socket);
$self->_set_binmode;
}
sub get_socket_domain_port {
my $self = shift;
my ($domain, $port);
($domain, $port) = split /:/, $self->name
if defined $self->name;
$self->domain($domain) unless defined $self->domain;
$self->domain($self->domain_default) unless $self->domain;
$self->port($port) unless defined $self->port;
return $self;
}
sub _overload_table {
my $self = shift;
(
$self->SUPER::_overload_table(@_),
'&{} socket' => '_overload_socket_as_code',
)
}
sub _overload_socket_as_code {
my $self = shift;
sub {
my $coderef = shift;
while ($self->is_open) {
$_ = $self->getline;
&$coderef($self);
}
}
}
sub _overload_any_from_any {
my $self = shift;
$self->SUPER::_overload_any_from_any(@_);
$self->close;
}
sub _overload_any_to_any {
my $self = shift;
$self->SUPER::_overload_any_to_any(@_);
$self->close;
}
1;
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