#30388 [Asn->Csd]: rename across filesystems loses ownership and permission info

ID: 30388 Updated by: tony2001@php.net Reported By: drachma60 at ml1 dot net -Status: Assigned +Status: Closed Bug Type: Filesystem function related Operating System: FreeBSD PHP Version: 4.3.8 Assigned To: tony2001 New Comment: 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. Previous Comments: ------------------------------------------------------------------------ [2004-10-24 14:00:19] tony2001@php.net Here are the patches: http://tony2001.phpclub.net/dev/tmp/bug30388.4_3.diff - for 4.3.10-dev http://tony2001.phpclub.net/dev/tmp/bug30388.diff - for 5.1-dev Waiting for Wez's response, as he's the maintainer of streams. ------------------------------------------------------------------------ [2004-10-23 13:56:14] 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. ------------------------------------------------------------------------ [2004-10-11 04:06:55] drachma60 at ml1 dot net (corrected typos in summary line) ------------------------------------------------------------------------ [2004-10-11 04:00:20] 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 ------------------------------------------------------------------------ -- Edit this bug report at http://bugs.php.net/?id=30388&edit=1