From: liamr at umich dot edu
Operating system: linux
PHP version: 5.0.0
PHP Bug Type: Feature/Change Request
Bug description: is_writable / is_readable / is_executable should use access()
instead of stat()
Description:
------------
The filesystem commands is_writable / is_readable / is_executable are now
using stat() instead of access(), which doesn't return accurate results in
a number of situations:
- on many network filesystems
- if the system uses ACLS
- if you have more groups than just initgroups
The current version only works on simple (unextened) unix filesystem -
filesystems that only use the traditional unix octets for access control.
the filesystem commands that check file system access should be based on
access() instead of stat():
http://www.opengroup.org/onlinepubs/009695399/functions/access.html
Acc'd to CVS the is_writable stuff changed when php_stat was routed
through the streams API:
http://cvs.php.net/diff.php/php-src/ext/standard/filestat.c?r1=1.127&r2=1.128&ty=h
There's a bug report from a couple of years ago that suggests adding an
access() command to the posix extention:
http://bugs.php.net/bug.php?id=14924
If you want to keep the functionality gained by routing php_stat through
the streams API, how about offering access() through the posix commands?
--
Edit bug report at http://bugs.php.net/?id=29615&edit=1
--
Try a CVS snapshot (php4): http://bugs.php.net/fix.php?id=29615&r=trysnapshot4
Try a CVS snapshot (php5): http://bugs.php.net/fix.php?id=29615&r=trysnapshot5
Fixed in CVS: http://bugs.php.net/fix.php?id=29615&r=fixedcvs
Fixed in release: http://bugs.php.net/fix.php?id=29615&r=alreadyfixed
Need backtrace: http://bugs.php.net/fix.php?id=29615&r=needtrace
Need Reproduce Script: http://bugs.php.net/fix.php?id=29615&r=needscript
Try newer version: http://bugs.php.net/fix.php?id=29615&r=oldversion
Not developer issue: http://bugs.php.net/fix.php?id=29615&r=support
Expected behavior: http://bugs.php.net/fix.php?id=29615&r=notwrong
Not enough info: http://bugs.php.net/fix.php?id=29615&r=notenoughinfo
Submitted twice: http://bugs.php.net/fix.php?id=29615&r=submittedtwice
register_globals: http://bugs.php.net/fix.php?id=29615&r=globals
PHP 3 support discontinued: http://bugs.php.net/fix.php?id=29615&r=php3
Daylight Savings: http://bugs.php.net/fix.php?id=29615&r=dst
IIS Stability: http://bugs.php.net/fix.php?id=29615&r=isapi
Install GNU Sed: http://bugs.php.net/fix.php?id=29615&r=gnused
Floating point limitations: http://bugs.php.net/fix.php?id=29615&r=float
