#22263 [NEW]: socket_read() crashes on client close

[caesar_iv4 at yahoo dot com]

From:             caesar_iv4 at yahoo dot com
Operating system: win 98 SE
PHP version:      4.3.1
PHP Bug Type:     Sockets related
Bug description:  socket_read() crashes on client close

I use php 4.3.2 latest cvs 
even php 5 and it stil occurs

i am trying to write a small php-based httpdeamon and when i was testing
it with IE6, open the connection and the page starts loading, but when i
click on stop i get the usual crashed program box

here's the script:
<?
function& sock() {
        global $SRV;
        if (($sock = socket_create (AF_INET, SOCK_STREAM, 0)) < 0)
                sock_err($sock,"socket_create()");
        if (($ret = socket_bind ($sock, $SRV["IP"], $SRV["PORT"])) < 0)
                sock_err($sock,"socket_bind()");
        if (($ret = socket_listen ($sock, $SRV["MAX_CL"])) < 0)
                sock_err($sock,"socket_listen()");
        return $sock;
}
function send(&$sock,$msg,$echo=true) {
        global $CORE_DUMP;
//      socket_write($sock,$msg,strlen($msg));
        fwrite($CORE_DUMP,$msg,strlen($msg));
        if($echo)
                echo $msg;
}
function log_access($ip) {
        global $LOG_ACCESS;
        $str = date("r")."  ".$ip."\n";
        fwrite($LOG_ACCESS,$str,strlen($str));
}
function sock_err(&$sock,$fn) {
        global $LOG_ERROR;
        $str = $fn." failed, reason:
".socket_strerror(socket_last_error($sock));
        echo $str;
        fwrite($LOG_ERROR,$str,strlen($str));
}

error_reporting (E_ALL); 

set_time_limit (0);
ob_implicit_flush();
echo "07\n";
$sock = &sock();
echo "09\n";
do {
        echo "11\n";
        if (($msgsock = socket_accept(@$sock)) < 0)
                sock_err(@$msgsock,"socket_accept()");
        echo "14\n";
        socket_getpeername(@$msgsock,$ip);
        echo "15\n";
        log_access($ip);
        echo "16\n";
        $str = "";
        echo "18\n";
        $i = 0;
        echo "20\n";
        while ($msgsock) {
                echo "23\n";
                if (!$msgsock)
                        break;
                echo $msgsock;
                $buf = socket_read($msgsock, 2048, PHP_BINARY_READ);
                echo "25\n";
                if (!$buf) { 
                        sock_err(@$msgsock,"socket_read()");
                        break;
                }
                echo "26\n";
                echo "28\n";
        } 
        echo "38\n";
        socket_close (@$msgsock);
        echo "40\n";
} while (@$sock);

socket_close (@$sock); 
?>

the echoes were to pin-point the problem


-- 
Edit bug report at http://bugs.php.net/?id=22263&edit=1
-- 
Try a CVS snapshot:         http://bugs.php.net/fix.php?id=22263&r=trysnapshot
Fixed in CVS:               http://bugs.php.net/fix.php?id=22263&r=fixedcvs
Fixed in release:           http://bugs.php.net/fix.php?id=22263&r=alreadyfixed
Need backtrace:             http://bugs.php.net/fix.php?id=22263&r=needtrace
Try newer version:          http://bugs.php.net/fix.php?id=22263&r=oldversion
Not developer issue:        http://bugs.php.net/fix.php?id=22263&r=support
Expected behavior:          http://bugs.php.net/fix.php?id=22263&r=notwrong
Not enough info:            http://bugs.php.net/fix.php?id=22263&r=notenoughinfo
Submitted twice:            http://bugs.php.net/fix.php?id=22263&r=submittedtwice
register_globals:           http://bugs.php.net/fix.php?id=22263&r=globals
PHP 3 support discontinued: http://bugs.php.net/fix.php?id=22263&r=php3
Daylight Savings:           http://bugs.php.net/fix.php?id=22263&r=dst
IIS Stability:              http://bugs.php.net/fix.php?id=22263&r=isapi
Install GNU Sed:            http://bugs.php.net/fix.php?id=22263&r=gnused