PHP :: Bug #30388 :: rename across filesystems loses ownership and permission info
- ️Mon Oct 11 2004
Bug #30388 | rename across filesystems loses ownership and permission info | |||
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Submitted: | 2004-10-11 04:00 UTC | Modified: | 2004-10-27 14:06 UTC | |
From: | drachma60 at ml1 dot net | Assigned: | tony2001 (profile) | |
Status: | Closed | Package: | Filesystem function related | |
PHP Version: | 4.3.8 | OS: | FreeBSD | |
Private report: | No | CVE-ID: | None |
[2004-10-11 04:00 UTC] drachma60 at ml1 dot net
Description: ------------ When renaming a file (via the "rename" function) across filesystems, owner, group and permission information will be lost if (a) we are running as root and (b) the file is not owned by root. Additionally, I suspect that permission information can be lost even if (a) we are not running as root and (b) we are running as the user who owns the file. Reproduce code: --------------- <?php // I am running as root touch ("/tmp/testfile"); passthru ("ls -l /tmp/testfile"); chown ("/tmp/testfile", "nobody"); chgrp ("/tmp/testfile", "nobody"); chmod ("/tmp/testfile", 0); passthru ("ls -l /tmp/testfile"); rename ("/tmp/testfile", "/tmp/testfile2"); passthru ("ls -l /tmp/testfile2"); rename ("/tmp/testfile2", "/home/testfile2"); passthru ("ls -l /home/testfile2"); ?> Expected result: ---------------- -rw-r--r-- 1 root wheel 0 Oct 10 18:53 /tmp/testfile ---------- 1 nobody nobody 0 Oct 10 18:53 /tmp/testfile ---------- 1 nobody nobody 0 Oct 10 18:53 /tmp/testfile2 ---------- 1 nobody nobody 0 Oct 10 18:53 /home/testfile2 Actual result: -------------- -rw-r--r-- 1 root wheel 0 Oct 10 18:53 /tmp/testfile ---------- 1 nobody nobody 0 Oct 10 18:53 /tmp/testfile ---------- 1 nobody nobody 0 Oct 10 18:53 /tmp/testfile2 -rw-r--r-- 1 root wheel 0 Oct 10 18:53 /home/testfile2
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[2004-10-23 13:56 UTC] tony2001@php.net
Well, yes, PHP in this particular case works exactly as `cp`: linux:/ # touch /tmp/testfile linux:/ # chown nobody:nobody /tmp/testfile linux:/ # ls -l /tmp/testfile -rw-r--r-- 1 nobody nobody 0 Oct 23 15:47 /tmp/testfile linux:/ # cp /tmp/testfile /usr/testfile linux:/ # ls -l /usr/testfile -rw-r--r-- 1 root root 0 Oct 23 15:47 /usr/testfile but `mv` preserves permissions and IMO rename() should behave in the same way. I'll write a patch shortly.
[2004-10-27 14:06 UTC] tony2001@php.net
This bug has been fixed in CVS. Snapshots of the sources are packaged every three hours; this change will be in the next snapshot. You can grab the snapshot at http://snaps.php.net/. Thank you for the report, and for helping us make PHP better.