thanks cjensen!
I added the following just below the socket creation and above the send method:
print "\ngetpeername: " . getpeername($sock) . "\n";
output is:
getpeername:
send: Cannot determine peer address at udp.pl line 26
so, no error when calling getpeername...
checking the linux kernel road.. woulb be very strange if you cannot send something to a LAN broadcast address
tried other port values... nothing (port is random)
F.
| [reply]
[d/l]
[select] |
I should have been more clear... The error is occurring when the peer name is undefined in IO::Socket. It won't give you an error when it can't determine the peer address, it just returns undef. Then the call to send in IO::Socket croaks when peer name is undefined:
croak 'send: Cannot determine peer address'
unless($peer);
So getpeername($sock) returning undef is what I expected would happen, I just didn't explain that well enough. It should return the address of the peer at the remote end of the socket.
Try this and vary the $bcaddr in your script:
my ($port, $addr) = unpack_sockaddr_in(getpeername($sock));
my $host = gethostbyaddr($addr, AF_INET);
print "Host:\t$host\n";
print "Port:\t$port\n";
| [reply] |
