#48746 [Fbk]: Unable to browse directories within Junction Points

From: Date: Sat, 05 Sep 2009 16:34:38 +0000
Subject: #48746 [Fbk]: Unable to browse directories within Junction Points
References: 1  Groups: php.bugs 
Request: Send a blank email to php-bugs+get-142001@lists.php.net to get a copy of this message 
 ID:               48746
 Updated by:       pajoye@php.net
 Reported By:      ddkees at illinois dot edu
 Status:           Feedback
 Bug Type:         Directory function related
 Operating System: win32 only - Windows Server 2003
 PHP Version:      5.3.0
 Assigned To:      pajoye
 New Comment:

Please try using:

http://windows.php.net/downloads/qa/test/php-5.3.2-dev-Win32-VC9-x86.zip

It is a striped down build (thread safe). Only CLI is available but no
worry, it behaves the same than apache in TS mode.


Previous Comments:
------------------------------------------------------------------------

[2009-09-04 20:59:28] phpstuff at cresstone dot com

Using junctions: is_file and file_exists are giving incorrect behavior
(false on files). is_dir as well, false on directories in the junction
and the junction itself.

The same functions are working well with symlinks.

If you need testing for this, you have mail.

------------------------------------------------------------------------

[2009-09-04 20:45:25] pajoye@php.net

@[4 Sep 8:20pm UTC] phpstuff at cresstone dot com

Using is_dir and is_file or file_exists and the cases you described,
does it work? (I don't think the filetype issue is related to what we
discuss here).

------------------------------------------------------------------------

[2009-09-04 20:20:02] phpstuff at cresstone dot com

I was able replicate shoresofnowhere's behavior using windows 7...


I created a junction to a folder on another drive; running is_file() on
a file inside that junction returned false, as did is_dir(). Curious to
see what php thought it was looking at, I tested filetype(), which threw
an error.

I then tested symlinks in the same manner, and got good behavior.
Symlinks seem to be a good workaround for this issue.

Test log follows:


C:\mnt\test>mklink /J junction_otherDrive f:\downloads
Junction created for junction_otherDrive <<===>> f:\downloads

C:\mnt\test>mklink /D symlink_otherDrive f:\downloads
symbolic link created for symlink_otherDrive <<===>> f:\downloads

C:\mnt\test>dir
 Volume in drive C is coreI7_System
 Volume Serial Number is 38E2-2B62

 Directory of C:\mnt\test

2009.09.04  16.05    <DIR>          .
2009.09.04  16.05    <DIR>          ..
2009.09.04  16.05    <JUNCTION>     junction_otherDrive [f:\downloads]
2009.09.04  16.05    <SYMLINKD>     symlink_otherDrive [f:\downloads]
               0 File(s)              0 bytes
               4 Dir(s)  30,034,223,104 bytes free

C:\mnt\test>php -r var_dump(filetype('junction_otherdrive'));
PHP Warning:  filetype(): Lstat failed for junction_otherdrive in
Command line code on line 1

Warning: filetype(): Lstat failed for junction_otherdrive in Command
line code on line 1
bool(false)

C:\mnt\test>php -r
var_dump(filetype('junction_otherdrive\php-5.2.0-win32-installer.msi'));
PHP Warning:  filetype(): Lstat failed for
junction_otherdrive\php-5.2.0-win32-installer.msi in Comm
and line code on line 1

Warning: filetype(): Lstat failed for
junction_otherdrive\php-5.2.0-win32-installer.msi in Command l
ine code on line 1
bool(false)

C:\mnt\test>php -r var_dump(filetype('symlink_otherdrive'));
string(3) "dir"

C:\mnt\test>php -r
var_dump(filetype('symlink_otherdrive\php-5.2.0-win32-installer.msi'));
string(4) "file"

------------------------------------------------------------------------

[2009-09-04 18:32:33] pajoye@php.net

Ignore my last two comments, it works perfectly using what you
describe. I was testing it from another VM where this junction did not
exist.

I added a include 'dir3/two.php' to one.php, two.php being a simple
echo "two.php"
The output:

C:\test>\php53\debug_ts\php.exe -n one.php
two.php
bool(true)

C:\test>junction dir3
....

C:\test\dir3: JUNCTION
   Substitute Name: e:\test


C:\test>dir dir3
 ...
09/04/2009  07:33 PM                24 two.php
               1 File(s)             24 bytes
               2 Dir(s)     202,975,232 bytes free


------------------------------------------------------------------------

[2009-09-04 17:50:34] pajoye@php.net

Please note that it is again a XP/2k3 only issue. Debugging/fixing now.

------------------------------------------------------------------------

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/48746

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Edit this bug report at http://bugs.php.net/?id=48746&edit=1

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