while (my @ready = $s->can_read()) { 
	my $buff;
	foreach my $fh ( @ready ) {
        	my $res = sysread($fh, $buff, 1024);
		if ($res > 0) { 
		   	$results{$host} .= $buff;
		}
		elsif (defined $res) { 
			delete $results{$fh} if ( $res == 0);
		}
		else { 
#			$res is undef, so tell our user about the error
			print "Something broke! : $!\n";
		}
	}
}