ID: 46498 Updated by: j...@php.net Reported By: registrace at koren dot cz -Status: Open +Status: Feedback Bug Type: Filesystem function related Operating System: Linux PHP Version: 5.2.6 New Comment:
Please try using this CVS snapshot: http://snaps.php.net/php5.2-latest.tar.gz For Windows: http://windows.php.net/snapshots/ Previous Comments: ------------------------------------------------------------------------ [2008-11-05 21:01:31] registrace at koren dot cz Description: ------------ PHP Function is_writable() sometimes reports false results. Requirements: Linux - getuid() != geteuid() After inspection of PHP source, I realized, that is_writable() internally uses syscall access(2). In turn, access(2) man page (on Linux) says: The check is done with the calling processâs real UID and GID, rather than with the effective IDs as is done when actually attempting an operation. This is to allow set-user-ID programs to easily determine the invoking userâs authority. Reproduce code: --------------- <? $file = "testfile.txt"; echo "GetUID: " . posix_getuid() . "/" . posix_geteuid() . "<br />"; echo "file is writable " . (is_writable($file)?"TRUE":"FALSE") . "<br />"; fopen("testfile.txt", 'wt'); echo ("file created"); ?> Expected result: ---------------- Expected result: either: file is writable TRUE file created or file is writable FALSE ERROR Actual result: -------------- GetUID: 933/10099 file is writable FALSE file created ------------------------------------------------------------------------ -- Edit this bug report at http://bugs.php.net/?id=46498&edit=1
