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#
# (c) Jan Gehring <jan.gehring@gmail.com>
#
# vim: set ts=2 sw=2 tw=0:
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=head1 NAME
Rex::Commands::SimpleCheck - Simple tcp/alive checks
=head1 DESCRIPTION
With this module you can do simple tcp/alive checks.
Version <= 1.0: All these functions will not be reported.
All these functions are not idempotent.
=head1 SYNOPSIS
 if(is_port_open($remote_host, $port)) {
   print "Port $port is open\n";
 }
=head1 EXPORTED FUNCTIONS
=cut
package Rex::Commands::SimpleCheck;
use strict;
use warnings;
our $VERSION = '1.3.1_1'; # TRIAL VERSION
use IO::Socket;
require Rex::Exporter;
use base qw(Rex::Exporter);
use vars qw(@EXPORT);
@EXPORT = qw(is_port_open);
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=head2 is_port_open($ip, $port)
Check if something is listening on port $port of $ip.
=cut
sub is_port_open {
  my ( $ip, $port, $type ) = @_;
  $type ||= "tcp";
  my $socket = IO::Socket::INET->new(
    PeerAddr => $ip,
    PeerPort => $port,
    Proto    => $type,
    Timeout  => 2,
    Type     => SOCK_STREAM
  );
  if ($socket) {
    close $socket;
    return 1;
  }
  return 0;
}
1;