#46814 [Com]: Relative includes from symlinked directories fail

ID: 46814 Comment by: michele dot manzato at gmail dot com Reported By: dennis dot birkholz at nexxes dot net Status: No Feedback Bug Type: Scripting Engine problem Operating System: Gentoo/Linux PHP Version: 5.2.8 New Comment: I confirm this bug. Here is the simplest reproduce code that I was able to make up: ~$ cd /tmp /tmp$ mkdir a /tmp$ mkdir b /tmp$ echo '<?php echo getcwd(); require "../inc.php";?>' > a/test.php /tmp$ echo '<?php echo "ok\n";?>' > b/inc.php /tmp$ ln -s /tmp/a b/c /tmp$ cd b/c/ /tmp/b/c$ php -f test.php /tmp/a Warning: require(../inc.php): failed to open stream: No such file or directory in /tmp/a/test.php on line 1 As one can see, the script's CWD is /tmp/a although the script was run from /tmp/b/c. As a result the following require() instruction fails because it can't find /inc.php (which should have been /tmp/b/inc.php instead). The problem here is not the require(). It is that the CWD is converted to the real path when, instead, it should remain the symlinked path. Previous Comments: ------------------------------------------------------------------------ [2008-12-29 01:00:01] php-bugs at lists dot php dot net No feedback was provided for this bug for over a week, so it is being suspended automatically. If you are able to provide the information that was originally requested, please do so and change the status of the bug back to "Open". ------------------------------------------------------------------------ [2008-12-21 13:12:11] jani@php.net Thank you for this bug report. To properly diagnose the problem, we need a short but complete example script to be able to reproduce this bug ourselves. A proper reproducing script starts with <?php and ends with ?>, is max. 10-20 lines long and does not require any external resources such as databases, etc. If the script requires a database to demonstrate the issue, please make sure it creates all necessary tables, stored procedures etc. Please avoid embedding huge scripts into the report. ------------------------------------------------------------------------ [2008-12-18 21:28:43] dennis dot birkholz at nexxes dot net No, you did not read my initial post correctly: a file/directory starting with a / (like /test1) means it is in the root-directory. All example pathnames where absolute pathnames, not relative. Here comes my listing for you: /htdocs/: total 12 drwxr-xr-x 3 root root 4096 Dec 18 22:23 ./ drwxr-xr-x 22 root root 4096 Dec 18 22:23 ../ drwxr-xr-x 2 root root 4096 Dec 18 22:23 docs/ lrwxrwxrwx 1 root root 6 Dec 18 22:23 test2 -> /test1/ /htdocs/docs/: insgesamt 8 drwxr-xr-x 2 root root 4096 18. Dez 22:23 ./ drwxr-xr-x 3 root root 4096 18. Dez 22:23 ../ -rw-r--r-- 1 root root 0 18. Dez 22:23 docs.inc.php /test1/: total 8 drwxr-xr-x 2 root root 4096 18. Dez 22:24 ./ drwxr-xr-x 22 root root 4096 18. Dez 22:23 ../ -rw-r--r-- 1 root root 0 18. Dez 22:24 index.php Please note that test1 and test2 are not on the same directory level! ------------------------------------------------------------------------ [2008-12-18 09:05:37] php at degoulet dot net I don't realy understand your problem ?! [root@pix sdv]# ls -alR .: total 16 drwxr-xr-x 4 root root 4096 Dec 17 17:44 . drwxrwxrwx 3 via ftponly 4096 Dec 17 17:44 .. drwxr-xr-x 2 root root 4096 Dec 17 17:45 docs drwxr-xr-x 2 root root 4096 Dec 17 17:46 test1 lrwxrwxrwx 1 root root 5 Dec 17 17:44 test2 -> test1 ./docs: total 12 drwxr-xr-x 2 root root 4096 Dec 17 17:45 . drwxr-xr-x 4 root root 4096 Dec 17 17:44 .. -rw-r--r-- 1 root root 24 Dec 17 17:45 docs.inc.php ./test1: total 12 drwxr-xr-x 2 root root 4096 Dec 17 17:46 . drwxr-xr-x 4 root root 4096 Dec 17 17:44 .. -rw-r--r-- 1 root root 50 Dec 17 17:46 index.php [root@pix sdv]# cat test1/index.php <?php include("../docs/docs.inc.php"); echo "ok\n"; ?> [root@pix sdv]# cat docs/docs.inc.php <?php echo "docs\n"; ?> No problem when i try this with apache : http://www.xxxx.com/sdv/test1/index.php http://www.xxxx.com/sdv/test2/index.php ==> same output : docs ok if you try this in command line. 3 cases : - pwd= test1 : php index.php => output docs ok - pwd= test2 : php index.php => output docs ok - pwd= anywhere else : php ./test1/index.php : include(): Unable to access ../docs/docs.inc.php which is quite normal the include path is relative to the current directory where php is executed not relative to the php script which is executed ... isn't it ? ------------------------------------------------------------------------ [2008-12-17 22:35:25] dennis dot birkholz at nexxes dot net This IS a bug: in Linux (and Unix like systems) beeing in a symlinked directory should behave exactly like beeing in a directory with the same content. To use my example: If I use a shell and change to the folder /htdocs/test2 (which is a symlink to /test1), ls ../docs/docs.inc.php will show me the file "/htdocs/docs/docs.inc.php" and NOT "/docs/docs.inc.php". ------------------------------------------------------------------------ The remainder of the comments for this report are too long. To view the rest of the comments, please view the bug report online at http://bugs.php.net/46814 -- Edit this bug report at http://bugs.php.net/?id=46814&edit=1