php.net |  support |  documentation |  report a bug |  advanced search |  search howto |  statistics |  random bug |  login
Bug #42049 tempnam() creates a file with incorrect default permissions on Windows.
Submitted: 2007-07-19 14:43 UTC Modified: 2007-07-27 01:00 UTC
From: mahesh dot vemula at in dot ibm dot com Assigned:
Status: No Feedback Package: Filesystem function related
PHP Version: 5CVS-2007-07-19 (snap) OS: Windows XP
Private report: No CVE-ID: None
Welcome back! If you're the original bug submitter, here's where you can edit the bug or add additional notes.
If you forgot your password, you can retrieve your password here.
Password:
Status:
Package:
Bug Type:
Summary:
From: mahesh dot vemula at in dot ibm dot com
New email:
PHP Version: OS:

 

 [2007-07-19 14:43 UTC] mahesh dot vemula at in dot ibm dot com
Description:
------------
The unique file created by tempnam() has the default permissions of 0666 on Windows. But according to documentation http://in.php.net/manual/en/function.tempnam.php, the default permissions are 0600. On Linux tempnam() creates a file with permissions of 0600 as expected i.e according to documentation.

If this is the expected behavior on Windows, please fix the documentation.



Reproduce code:
---------------
<?php
$file_name = tempnam(".", "temp");
printf("%o", fileperms($file_name) );
unlink($file_name);
?>


Expected result:
----------------
100600

Actual result:
--------------
100666

Patches

Pull Requests

History

AllCommentsChangesGit/SVN commitsRelated reports
 [2007-07-19 16:07 UTC] jani@php.net
I think it's how chmod on windows works. Try this:

<?php
$file_name = tempnam(".", "temp");
chmod($file_name, 0600);
clearstatcache();
printf("%o", fileperms($file_name) );
?>

I bet you still get 0666..
 [2007-07-27 01:00 UTC] php-bugs at lists dot php dot net
No feedback was provided for this bug for over a week, so it is
being suspended automatically. If you are able to provide the
information that was originally requested, please do so and change
the status of the bug back to "Open".
 
PHP Copyright © 2001-2025 The PHP Group
All rights reserved.
Last updated: Wed Jul 02 07:01:33 2025 UTC