From: felix-php at 7val dot com
Operating system: Debian Linux (etch)
PHP version: 5.2.10
PHP Bug Type: HTTP related
Bug description: Curl: CURLOPT_FILE increases file handle refcount
Description:
------------
When passing an open, writable file handle to Curl as the CURLOPT_FILE
option, the refcount to that file handle is increased without being
decreased when calling curl_close.
Thus the file handle has to be closed TWICE to actually being flushed
and closed. In the reproduce code the file handle is still a valid
resource after the first call to fclose().
The bug is reproducable in PHP 5.2.10. In 5.2.9 the code works as
expected.
In 5.2.10 in ext/curl/interface.c:1440 the call
zend_list_addref(Z_LVAL_PP(zvalue));
was added. Maybe the problem origins here, if there is no corresponding
delref in curl_close()?
Reproduce code:
---------------
$fh = fopen('curl.out', 'w');
$c = curl_init('http://example.com');
curl_setopt($c, CURLOPT_FILE, $fh);
curl_exec($c);
fclose($fh);
echo "content 1: ". file_get_contents('curl.out') ."\n";
if (is_resource($fh)) {
echo "file still open -> wrong\n";
} else {
echo "file closed -> correct\n";
exit;
}
fclose($fh);
if (is_resource($fh)) {
echo "file open 2\n";
}
curl_close($c);
echo "content 2: ". file_get_contents('curl.out') ."\n";
Expected result:
----------------
content 1: <HTML>
<HEAD>
<TITLE>Example Web Page</TITLE>
</HEAD>
[..]
file closed -> correct
Actual result:
--------------
content 1:
file still open -> wrong
content 2: <HTML>
<HEAD>
<TITLE>Example Web Page</TITLE>
</HEAD>
[..]
--
Edit bug report at http://bugs.php.net/?id=48676&edit=1
--
Try a CVS snapshot (PHP 5.2):
http://bugs.php.net/fix.php?id=48676&r=trysnapshot52
Try a CVS snapshot (PHP 5.3):
http://bugs.php.net/fix.php?id=48676&r=trysnapshot53
Try a CVS snapshot (PHP 6.0):
http://bugs.php.net/fix.php?id=48676&r=trysnapshot60
Fixed in CVS:
http://bugs.php.net/fix.php?id=48676&r=fixedcvs
Fixed in CVS and need be documented:
http://bugs.php.net/fix.php?id=48676&r=needdocs
Fixed in release:
http://bugs.php.net/fix.php?id=48676&r=alreadyfixed
Need backtrace:
http://bugs.php.net/fix.php?id=48676&r=needtrace
Need Reproduce Script:
http://bugs.php.net/fix.php?id=48676&r=needscript
Try newer version:
http://bugs.php.net/fix.php?id=48676&r=oldversion
Not developer issue:
http://bugs.php.net/fix.php?id=48676&r=support
Expected behavior:
http://bugs.php.net/fix.php?id=48676&r=notwrong
Not enough info:
http://bugs.php.net/fix.php?id=48676&r=notenoughinfo
Submitted twice:
http://bugs.php.net/fix.php?id=48676&r=submittedtwice
register_globals:
http://bugs.php.net/fix.php?id=48676&r=globals
PHP 4 support discontinued: http://bugs.php.net/fix.php?id=48676&r=php4
Daylight Savings: http://bugs.php.net/fix.php?id=48676&r=dst
IIS Stability:
http://bugs.php.net/fix.php?id=48676&r=isapi
Install GNU Sed:
http://bugs.php.net/fix.php?id=48676&r=gnused
Floating point limitations:
http://bugs.php.net/fix.php?id=48676&r=float
No Zend Extensions:
http://bugs.php.net/fix.php?id=48676&r=nozend
MySQL Configuration Error:
http://bugs.php.net/fix.php?id=48676&r=mysqlcfg
