From: sborrill at precedence dot co dot uk
Operating system: NetBSD 3.1_STABLE
PHP version: 5.2.0
PHP Bug Type: Streams related
Bug description: Can't open file from cwd if parent folder not readable
Description:
------------
With PHP versions prior to 5.2.0 (e.g. 5.1.6), you could fopen() a file in
the current working directory (i.e. same as the script) even if a parent
directory only had +x permission and not +rx for the webserver. With 5.2.0
(and today's 5.2 snapshot) you get "Warning: fopen(file) [function.fopen]:
failed to open stream: No such file or directory [...]".
If it's of any relevance, with all versions, getcwd() returns FALSE on
NetBSD if a parent folder is not readable, but this does not affect
fopen().
This is affecting any user whose home area is mode 0711 when they run php
from their public_html folder (which is mode 0755).
Reproduce code:
---------------
Ensuring ownership is not same as web server process (e.g. in public_html
in user's home area):
mkdir one
mkdir one/two
chmod 711 one
chmod 755 one/two
echo "test" > one/two/testfile
one/two/index.php contains:
<?php
echo "cwd:".getcwd()."<br>";
$fp=fopen("testfile","r");
if($fp) fpassthru($fp);
?>
Stage one:
chmod 711 one
Stage two:
chmod 755 one
Expected result:
----------------
(stage one):
cwd:
test
(stage two)
cwd: /home/testuser/public_html
test
Actual result:
--------------
(stage 1):
cwd:
Warning: fopen(file) [function.fopen]: failed to open stream: No such file
or directory [...]
(stage two)
cwd: /home/testuser/public_html
test
--
Edit bug report at http://bugs.php.net/?id=40326&edit=1
--
Try a CVS snapshot (PHP 4.4):
http://bugs.php.net/fix.php?id=40326&r=trysnapshot44
Try a CVS snapshot (PHP 5.2):
http://bugs.php.net/fix.php?id=40326&r=trysnapshot52
Try a CVS snapshot (PHP 6.0):
http://bugs.php.net/fix.php?id=40326&r=trysnapshot60
Fixed in CVS: http://bugs.php.net/fix.php?id=40326&r=fixedcvs
Fixed in release:
http://bugs.php.net/fix.php?id=40326&r=alreadyfixed
Need backtrace: http://bugs.php.net/fix.php?id=40326&r=needtrace
Need Reproduce Script: http://bugs.php.net/fix.php?id=40326&r=needscript
Try newer version: http://bugs.php.net/fix.php?id=40326&r=oldversion
Not developer issue: http://bugs.php.net/fix.php?id=40326&r=support
Expected behavior: http://bugs.php.net/fix.php?id=40326&r=notwrong
Not enough info:
http://bugs.php.net/fix.php?id=40326&r=notenoughinfo
Submitted twice:
http://bugs.php.net/fix.php?id=40326&r=submittedtwice
register_globals: http://bugs.php.net/fix.php?id=40326&r=globals
PHP 3 support discontinued: http://bugs.php.net/fix.php?id=40326&r=php3
Daylight Savings: http://bugs.php.net/fix.php?id=40326&r=dst
IIS Stability: http://bugs.php.net/fix.php?id=40326&r=isapi
Install GNU Sed: http://bugs.php.net/fix.php?id=40326&r=gnused
Floating point limitations: http://bugs.php.net/fix.php?id=40326&r=float
No Zend Extensions: http://bugs.php.net/fix.php?id=40326&r=nozend
MySQL Configuration Error: http://bugs.php.net/fix.php?id=40326&r=mysqlcfg
