Hi,
I'm kinda new at PHP and trying out 4.2.2.on Windows 98 using
Apache 1.3.23 as webserver. however my Problem arises also with calling
PHP -f in the box:

Basically I do (leaving out error checking here):

<?php
// set up listener and wait for clients
$listener = socket_create(AF_INET, SOCK_STREAM, 0);
socket_setopt($listener, SOL_SOCKET, SO_REUSEADDR, 1);
socket_bind($listener, "0.0.0.0", 1234);
if (socket_listen($listener, 5);
$client = array();

// monitoring loop
while (true)
{
    $read[0] = $listener;
    // keep track of clients
    for ($i = 0; $i < MAX_CLIENTS; i++)
    {
        if ($client[$i] != null)
             $read[$i + 1] = $client[$i];
    }
    
    // watch for any socket activity
    $nready = socket_select($read, $null, $null, null);
    
    if (in_array($listener, $read))
    {
        // here we have a new client
        for ($i = 0; $i < MAX_CLIENTS; $i++)
        {
            if ($client[$i] == null)
            {    
                $client[$i] = socket_accept($listener);
                break;
            }
        }
        if (--$nready <= 0)
            continue;
    }

    // get data from socket(s) marked as active
    for ($i = 0; $i < MAX_CLIENTS; $i++)
    {
        if (in_array($client[$i], $read))
        {
            socket_getpeername($client[$i], $host, $port);
            $n = socket_read($client[$i], 16300);
            if (strlen($n) > 0)
                echo "rcv from $host:$port:$n\r\n";
            // else close and cleanup socket
        }
    }
}

Everything works fine as long as I have well-behaved clients.
But if I for example try this against a telnet client and 
just close it without properly disconnecting my PHP -f ...
dies with a page fault when getting to "socket_read".

I tried to have a look at "socket_last_error" before reading 
but that does not help since it says: 0. "socket_select" lets 
loose upon the killing of the client, putting the socket into 
the "read" array. So I have to look at it...

Any hints on how I get around this?
Thanks in advance

Sven Schnitzke



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