Bug #81404 [Opn]: rename() does not keep extended file attributes

Edit report at https://bugs.php.net/bug.php?id=81404&edit=1 ID: 81404 User updated by: rdueck at mcmillan-mcgee dot com Reported by: rdueck at mcmillan-mcgee dot com Summary: rename() does not keep extended file attributes Status: Open Type: Bug Package: *General Issues Operating System: Debian 10, Linux 4.19.0-17-amd64 -PHP Version: 8.0.10 +PHP Version: 7.4.23 Block user comment: N Private report: N New Comment: I tried the test script from the command-line as the www-data user, and rename() still works correctly. I've also corrected the PHP version; I have not tested PHP 8.0. Previous Comments: ------------------------------------------------------------------------ [2021-08-31 17:17:31] cmb@php.net For files, PHP's rename tries to rename(2), but if that fails for whatever reason, it actually copies the file, and removes the original. The latter would indeed ignore extended file attributes. I'm not sure though, whether this is the reason in your case. ------------------------------------------------------------------------ [2021-08-31 17:05:18] rdueck at mcmillan-mcgee dot com Description: ------------ When running from Apache2 using apache-mod-php, rename() strips extended attributes. The same code works from the command line, and the system 'mv' command works in both cases. move_uploaded_file() has the same problem as rename(). Test script: --------------- <?php // Requires xattr: // pecl install xattr // then add 'extension=xattr.so' to php.ini // ASSUME: current directory is not /tmp $a = tempnam('/tmp','my'); $b = basename($a); for ($i=0; $i<2; $i++) { file_put_contents($a,'TestData'); xattr_set($a,'owner','me'); switch($i){ case 0: rename($a,$b); $fn='rename'; break; case 1: mv $a $b; $fn='mv'; break; } $owner = xattr_get($b,'owner'); echo "$fn ".($owner=='me'?'SUCCEEDED':'FAILED')."\n"; } Expected result: ---------------- rename SUCCEEDED mv SUCCEEDED Actual result: -------------- rename FAILED mv SUCCEEDED ------------------------------------------------------------------------ -- Edit this bug report at https://bugs.php.net/bug.php?id=81404&edit=1