From:             kameshj at fastmail dot fm
Operating system: Irrelevant
PHP version:      Irrelevant
PHP Bug Type:     Scripting Engine problem
Bug description:  . in open_basedir always translates SG(path_translated) 
rather than CWDG(cwd)

Description:
------------
Keep the following subapp/main.php, lib/reuse.php in a directory under
DocumentRoot
Access http://your_web_server/subapp/main.php

Analysis
---------------
In php-src/main/fopen_wrappers.c, php_check_specific_open_basedir function
has a code like this at the top
        if ((strcmp(basedir, ".") == 0) && 
                SG(request_info).path_translated &&
                *SG(request_info).path_translated
Which I feel to be 
        if ((strcmp(basedir, ".") == 0) && 
                SG(request_info).path_translated &&
                *SG(request_info).path_translated
This should have been just,
        if (strcmp(basedir, ".") == 0)
local_open_basedir need to have been copied from CWDG(cwd)

The patch is against php-5.1 head is available at 
http://puggy.symonds.net/~kameshj/fopen_wrappers.c.patch

Reproduce code:
---------------
subapp/main.php
------------------
<?php
        chdir("..");
        echo __FILE__;
        echo "\n<br>\n";
        include("./lib/reuse.php");
?>
lib/reuse.php
------------------
<?php
        echo __FILE__;
        echo "\n<br>";
?>


Expected result:
----------------
Absolute_path_of_your_document_root/subapp/main.php
<br>
Absolute_path_of_your_document_root/lib/reuse.php
<br>

Actual result:
--------------
Absolute_path_of_your_document_root/subapp/main.php


-- 
Edit bug report at http://bugs.php.net/?id=31514&edit=1
-- 
Try a CVS snapshot (php4):   http://bugs.php.net/fix.php?id=31514&r=trysnapshot4
Try a CVS snapshot (php5.0): 
http://bugs.php.net/fix.php?id=31514&r=trysnapshot50
Try a CVS snapshot (php5.1): 
http://bugs.php.net/fix.php?id=31514&r=trysnapshot51
Fixed in CVS:                http://bugs.php.net/fix.php?id=31514&r=fixedcvs
Fixed in release:            http://bugs.php.net/fix.php?id=31514&r=alreadyfixed
Need backtrace:              http://bugs.php.net/fix.php?id=31514&r=needtrace
Need Reproduce Script:       http://bugs.php.net/fix.php?id=31514&r=needscript
Try newer version:           http://bugs.php.net/fix.php?id=31514&r=oldversion
Not developer issue:         http://bugs.php.net/fix.php?id=31514&r=support
Expected behavior:           http://bugs.php.net/fix.php?id=31514&r=notwrong
Not enough info:             
http://bugs.php.net/fix.php?id=31514&r=notenoughinfo
Submitted twice:             
http://bugs.php.net/fix.php?id=31514&r=submittedtwice
register_globals:            http://bugs.php.net/fix.php?id=31514&r=globals
PHP 3 support discontinued:  http://bugs.php.net/fix.php?id=31514&r=php3
Daylight Savings:            http://bugs.php.net/fix.php?id=31514&r=dst
IIS Stability:               http://bugs.php.net/fix.php?id=31514&r=isapi
Install GNU Sed:             http://bugs.php.net/fix.php?id=31514&r=gnused
Floating point limitations:  http://bugs.php.net/fix.php?id=31514&r=float
No Zend Extensions:          http://bugs.php.net/fix.php?id=31514&r=nozend
MySQL Configuration Error:   http://bugs.php.net/fix.php?id=31514&r=mysqlcfg

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