Socket Help

P_Ferreira

Is there any difference between sockets in LUNIX and WINDOWS? I ask this because I have a code that is working in LUNIX based computer but not in a Windows one...

$sd_cmd_socket = stream_socket_client("udp://IP:PORT", $errno, $errstr, 30);
if (!$sd_cmd_socket) 
{
    echo "$errstr ($errno)<br />\n";
}
else 
{
	fwrite($sd_cmd_socket, "999999#STATUS#\n");

$rc_resp_socket = socket_create(AF_INET, SOCK_DGRAM, SOL_UDP);

socket_bind($rc_resp_socket, '127.0.0.1', 6003);

$rc_from = 'IP';
$rc_port = PORT;
socket_recvfrom($rc_resp_socket, $buf, 300, 0, $rc_from, $rc_port);

echo "Received $buf from remote address and remote port" . PHP_EOL;

socket_close ($rc_resp_socket);
fclose($sd_cmd_socket);
}

This scripts sends a command ("999999#STATUS#) to IP😛ORT and a logger in that IP😛ORT sends the responde back to port 6003.
This code is working fine in a LINUX based computer but not in windows... Both are using APACHE...

Any thoughts or suggestions would be appreciated...

Thanks,

bradgrafelman

How is it "not [working]" on Windows? What is it doing and/or outputting? Do you have display_errors (or log_errors) set to On and error_reporting set to E_ALL (or better)?

P_Ferreira

The output is:

Warning: socket_recvfrom() [function.socket-recvfrom]: unable to recvfrom [0]: The operation completed successfully. in C:...

bradgrafelman

Try doing some more error checking/handling in your code to see if there are any indications for problems before you attempt to receive data on the socket. For example, check the Return Values section on the manual page for [man]socket_create/man and [man]socket_bind/man.

sneakyimp

the parameters you are supplying to [man]socket_recvfrom[/man] look suspect to me. Try reading the documentation on the functions you are calling. And BG is right...check the results of your calls for errors before trying to proceed.

sneakyimp

Look at these two values in particular:

    $rc_from = 'IP';
    $rc_port = PORT;

is PORT defined as anything? You are supplying these values as params to socket_recvfrom and I don't think they are remotely close to what you want.

P_Ferreira

I found the problem, the code was correct it was the firewall that was blocking the data...