From: robin_fernandes at uk dot ibm dot com
Operating system: Windows
PHP version: 5.3CVS-2007-12-07 (snap)
PHP Bug Type: Directory function related
Bug description: readdir(), rewinddir() and closedir() don't always fail when
passed 0 arguments
Description:
------------
According to the docs, readdir(), rewinddir() and closedir() should take
at least one argument: the directory handle.
However, these methods are also aliases for the Directory class methods
Directory::read(), Directory::rewind() and Directory::close(). Instances of
the Directory class hold the directory handle in $this->handle.
Therefore, if no argument is passed, the implementation of these methods
is such that $this->handle is used as the directory handle. However, no
check is made to ensure $this is an instance of Directory.
Consequently, calling readdir() etc.. with no arguments from a context
where $this->handle just happens to exists will result in unexpected
behaviour instead of an error message.
Reproduce code:
---------------
<?php
Class C {
public $handle;
function test() {
// Expecting failure.
var_dump(readdir());
var_dump(rewinddir());
var_dump(closedir());
}
}
$c = new C;
$c->handle = opendir(getcwd());
$c->test();
?>
Expected result:
----------------
Warning: readdir(): no Directory resource supplied in %s on line 6
bool(false)
Warning: rewinddir(): no Directory resource supplied in %s on line 7
bool(false)
Warning: closedir(): no Directory resource supplied in %s on line 8
bool(false)
Actual result:
--------------
string(1) "."
NULL
NULL
--
Edit bug report at http://bugs.php.net/?id=43529&edit=1
--
Try a CVS snapshot (PHP 4.4):
http://bugs.php.net/fix.php?id=43529&r=trysnapshot44
Try a CVS snapshot (PHP 5.2):
http://bugs.php.net/fix.php?id=43529&r=trysnapshot52
Try a CVS snapshot (PHP 5.3):
http://bugs.php.net/fix.php?id=43529&r=trysnapshot53
Try a CVS snapshot (PHP 6.0):
http://bugs.php.net/fix.php?id=43529&r=trysnapshot60
Fixed in CVS: http://bugs.php.net/fix.php?id=43529&r=fixedcvs
Fixed in release:
http://bugs.php.net/fix.php?id=43529&r=alreadyfixed
Need backtrace: http://bugs.php.net/fix.php?id=43529&r=needtrace
Need Reproduce Script: http://bugs.php.net/fix.php?id=43529&r=needscript
Try newer version: http://bugs.php.net/fix.php?id=43529&r=oldversion
Not developer issue: http://bugs.php.net/fix.php?id=43529&r=support
Expected behavior: http://bugs.php.net/fix.php?id=43529&r=notwrong
Not enough info:
http://bugs.php.net/fix.php?id=43529&r=notenoughinfo
Submitted twice:
http://bugs.php.net/fix.php?id=43529&r=submittedtwice
register_globals: http://bugs.php.net/fix.php?id=43529&r=globals
PHP 3 support discontinued: http://bugs.php.net/fix.php?id=43529&r=php3
Daylight Savings: http://bugs.php.net/fix.php?id=43529&r=dst
IIS Stability: http://bugs.php.net/fix.php?id=43529&r=isapi
Install GNU Sed: http://bugs.php.net/fix.php?id=43529&r=gnused
Floating point limitations: http://bugs.php.net/fix.php?id=43529&r=float
No Zend Extensions: http://bugs.php.net/fix.php?id=43529&r=nozend
MySQL Configuration Error: http://bugs.php.net/fix.php?id=43529&r=mysqlcfg
