Edit report at https://bugs.php.net/bug.php?id=60704&edit=1

 ID:                 60704
 Comment by:         s...@php.net
 Reported by:        dean at dacunha dot net
 Summary:            unlink() bug with some files path
 Status:             Assigned
 Type:               Bug
 Package:            Filesystem function related
 Operating System:   Linux 3.0.0-14-generic #23-Ubunt
 PHP Version:        5.3.10
 Assigned To:        shm
 Block user comment: N
 Private report:     N

 New Comment:

Attached patch should fix this issue. Will commit if after a review.


Previous Comments:
------------------------------------------------------------------------
[2012-02-11 08:32:04] s...@php.net

The following patch has been added/updated:

Patch Name: themostevilpatchever.patch
Revision:   1328949124
URL:        
https://bugs.php.net/patch-display.php?bug=60704&patch=themostevilpatchever.patch&revision=1328949124

------------------------------------------------------------------------
[2012-02-06 14:55:40] dean at dacunha dot net

Hi,
I've just tested with php 5.3.10, the bug is still here.
Do you still need me to test with version 5.3.9 ?

Here is the proof:

root@djavanubu:/root#
root@djavanubu:/root# cat b.php
#!/usr/local/bin/php
<?php

$Target="/mnt/M://BRASIL/Carlinhos Brown/Alfagamabetizado - Angel's Robot 
List.mp3"; $Link="/mnt/M:/NEWBASE/BRASIL/Carlinhos Brown/Alfagamabetizado - 
Angel's Robot List.1.2.mp3";

link($Target,$Link);
unlink($Target);


?>
root@djavanubu:/root#
root@djavanubu:/root# /usr/local/bin/php -v
PHP 5.3.10 (cli) (built: Jan 31 2012 22:48:16)
Copyright (c) 1997-2012 The PHP Group
Zend Engine v2.3.0, Copyright (c) 1998-2012 Zend Technologies
root@djavanubu:/root#
root@djavanubu:/root#
root@djavanubu:/root# ./b.php

Warning: unlink(BRASIL/Carlinhos Brown/Alfagamabetizado - Angel's Robot 
List.mp3): No such file or directory in /root/b.php on line 7
root@djavanubu:/root#
root@djavanubu:/root# rm "/mnt/M:/NEWBASE/BRASIL/Carlinhos 
Brown/Alfagamabetizado - Angel's Robot List.1.2.mp3"
root@djavanubu:/root#
root@djavanubu:/root# strace ./b.php
[...]
lstat("/mnt/M://BRASIL/Carlinhos Brown/Alfagamabetizado - Angel's Robot 
List.mp3", {st_mode=S_IFREG|0755, st_size=1247232, ...}) = 0
lstat("/mnt/M://BRASIL/Carlinhos Brown", {st_mode=S_IFDIR|0755, st_size=40960, 
...}) = 0
lstat("/mnt/M://BRASIL", {st_mode=S_IFDIR|0755, st_size=81920, ...}) = 0
link("/mnt/M://BRASIL/Carlinhos Brown/Alfagamabetizado - Angel's Robot 
List.mp3", "/mnt/M:/NEWBASE/BRASIL/Carlinhos Brown/Alfagamabetizado - Angel's 
Robot List.1.2.mp3") = 0
unlink("BRASIL/Carlinhos Brown/Alfagamabetizado - Angel's Robot List.mp3") = -1 
ENOENT (No such file or directory)
write(1, "\nWarning: unlink(BRASIL/Carlinho"..., 135
Warning: unlink(BRASIL/Carlinhos Brown/Alfagamabetizado - Angel's Robot 
List.mp3): No such file or directory in /root/b.php on line 7
) = 135
[...]

------------------------------------------------------------------------
[2012-01-27 05:42:04] carloschilazo at gmail dot com

Does this happen also in 5.3.9 ?

Please confirm so I can look into it

Thanks

------------------------------------------------------------------------
[2012-01-10 19:58:07] dean at dacunha dot net

Description:
------------
unlink() function truncates the file path name argument in some cases.

This bug appears also with the rename() function in the same cases.

The given source code use link() to duplicate a file, then unlink() to remove 
the 
source file. link() function works and unlink() bugs.

Test script:
---------------
#!/usr/local/bin/php
<?php

$Target="/mnt/M://BRASIL/Carlinhos Brown/Alfagamabetizado - Angel's Robot 
List.mp3";
$Link="/mnt/M:/NEWBASE/BRASIL/Carlinhos Brown/Alfagamabetizado - Angel's Robot 
List.1.2.mp3";

link($Target,$Link);
unlink($Target);


?>


Expected result:
----------------
unlink() should remove the "/mnt/M://BRASIL/Carlinhos Brown/Alfagamabetizado - 
Angel's Robot List.mp3" file


Actual result:
--------------
root@djavanubu:/# ./b.php

Warning: unlink(BRASIL/Carlinhos Brown/Alfagamabetizado - Angel's Robot 
List.mp3): No such file or directory in /b.php on line 8

###################
below trace shows the truncated file path given to unlink() syscall:
[...]
lstat("/mnt/M://BRASIL", {st_mode=S_IFDIR|0755, st_size=69632, ...}) = 0
link("/mnt/M://BRASIL/Carlinhos Brown/Alfagamabetizado - Angel's Robot 
List.mp3", "/mnt/M:/NEWBASE/BRASIL/Carlinhos Brown/Alfagamabetizado - Angel's 
Robot List.1.2.mp3") = 0
unlink("BRASIL/Carlinhos Brown/Alfagamabetizado - Angel's Robot List.mp3") = -1 
ENOENT (No such file or directory)
write(1, "\nWarning: unlink(BRASIL/Carlinho"..., 130
Warning: unlink(BRASIL/Carlinhos Brown/Alfagamabetizado - Angel's Robot 
List.mp3): No such file or directory in /b.php on line 8
) = 130
[...]


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



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