Description:
------------
If I call:

$fh = fopen('/tmp/yahoo.html', 'xb');
$ch = curl_init('http://www.yahoo.com/');
curl_setopt($ch, CURLOPT_FILE, $fh);

then the last line will fail with the misleading fopencookie-message.

I need to use 'xb' and not 'wb', to ensure that just 1 script instance writes into that file - please see more info here:

http://stackoverflow.com/questions/4096470/php-curl-curl-setopt-fopencookie-failed


Test script:
---------------
<?php
#phpinfo();
$fh = fopen('/tmp/yahoo.html', 'xb');
if ($fh) {
        $ch = curl_init('http://www.yahoo.com/');
        curl_setopt($ch, CURLOPT_FILE, $fh); # XXX the line 6
        curl_setopt($ch, CURLOPT_HEADER, FALSE);
        curl_setopt($ch, CURLOPT_FOLLOWLOCATION, TRUE);
        curl_setopt($ch, CURLOPT_USERAGENT, $_SERVER['HTTP_USER_AGENT']);
        #curl_setopt($ch, CURLOPT_COOKIEJAR, '/dev/null');
        #curl_setopt($ch, CURLOPT_COOKIEFILE, '/dev/null');
        #curl_setopt($ch, CURLOPT_COOKIEJAR, '/tmp/cookies.txt');
        #curl_setopt($ch, CURLOPT_COOKIEFILE, '/tmp/cookies.txt');
        curl_exec($ch);

        if(!curl_errno($ch)) {
                 $info = curl_getinfo($ch);
                  echo 'Took '.$info['total_time'] .
                    's to send a request to '.$info['url'];
        }
        curl_close($ch);
        fclose($fh);
} else {
        echo 'Can not open /tmp/yahoo.html';
}
?>


Expected result:
----------------
I expect the script create the file /tmp/yahoo.html on the 1st run and put the downloaded content into it.

Actual result:
--------------
Nov  4 12:55:19 centos httpd: PHP Fatal error:  curl_setopt() [<a href='function.curl-setopt'>function.curl-setopt</a>]: fopencookie failed in /var/www/html/proxy3.php on line 6

And the file is sero-sized:

afarber@centos:html> ls -alZ /tmp/yahoo.html
-rw-r--r--  apache apache user_u:object_r:httpd_tmp_t      /tmp/yahoo.html