Allo all, I am attempting to check if certain specified ports are listening via TCP... This is how i check.. I notice that if the IP is not up, then the socket call will keep trying for "EVER" .. even with the eval ALARM set... What else can I do to timeout the socket connection event?
sub opensock {
my $addr = $_[0];
my $port = $_[1];
my $sock;
my $status = 0;
$SIG{ALRM} = sub {die "$port timed out\n"};
eval {
alarm(2);
$sock = new IO::Socket::INET (
PeerAddr => $addr,
PeerPort => $port,
Proto => 'tcp', undef );
alarm (0);
};
if ($sock) {
$status=1;
close($sock);
}
undef $sock;
return $status;
}
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