ID: 42096
Updated by: jani@php.net
Reported By: michael202 at gmx dot de
-Status: Open
+Status: Feedback
Bug Type: Streams related
Operating System: Windows only
PHP Version: 5.2CVS-2007-07-24
New Comment:
As is_dir() uses stat to check whether passed path is directory or not
I doubt this can really be any PHP bug, just another limitiation of
Windows. Try doing the same using something else than PHP and I bet the
result is the same.
And this is totally bogus: echo(is_dir($p) . "\n");
Proto for the function http://php.net/is_dir is:
bool is_dir ( string $filename )
"Returns TRUE if the filename exists and is a directory, FALSE
otherwise."
Previous Comments:
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[2007-08-08 09:09:04] michael202 at gmx dot de
running a script that makes a few thousand accesses to a samba server
(that is used by approx. 30 other hosts) causes this server to "crash"
and dismount the samba share.
------------------------------------------------------------------------
[2007-07-25 14:43:22] michael202 at gmx dot de
tested with php5.2-win32-latest.zip
from today morning 2007-07-25 08h08
error is still in there
------------------------------------------------------------------------
[2007-07-25 08:48:13] michael202 at gmx dot de
Description:
------------
calling is_dir() with an UNC path truncates each part of the path. The
last character is missing.
This results in unnecessary errors (on the host side) and slowdowns (on
client side).
Reproduce code:
---------------
windows only (php 5.2.3, Windows XP with cmd.exe) and linux host.
<?php
$p = '\\hostA\volumeB\dirC';
echo(is_dir($p) . "\n");
and then trace network IO for service/port SMB.
Beware of posssible side effects though caching of SMB connections
Expected result:
----------------
no error messages in /var/log/messages on 'hostA'
Actual result:
--------------
I traced these SMB Commands sent over the network:
Connect AndX Request \\hostA\IPC$
Connect AndX Request \\hostA\volume -> STATUS_BAD_NETWORK_NAME
FindFirst2, Pattern: \dir
these are in /var/log/messages in 'hostA'
... smbd/service.c:make_connection(252)
... couldn't find service volume
I think this is another problem with tsrm_virtual_cwd.c where around
line 500 state_cwd_length is set to 2 if a slash is found at the
beginning. Perhaps the existence of UNC paths is not checked for.
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Edit this bug report at http://bugs.php.net/?id=42096&edit=1