ID:               49049
 Updated by:       j...@php.net
 Reported By:      rusxakep at gmail dot com
-Status:           Open
+Status:           Feedback
 Bug Type:         Filesystem function related
 Operating System: Linux 2.6.29
 PHP Version:      5.2.10
 New Comment:

PLEASE give proper steps to reproduce this. Preferrably something we
can 
simply cut'n'paste..


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

[2009-07-29 16:34:25] rusxakep at gmail dot com

You can use any other directory where you are able to do it. You can
use the virtual machine (like VirtalBox or VMware) and so forth.

Installation "execution bit" on/usr/bin/strace is necessary for
situation creation where the error in function file_exist() appears. It
is necessary for more exact understanding of an error.

In a real situation which is described in my first post, the role
strace is fulfilled by the program written on C with "execution bit
enable".

If still something is not clear, write, I will explain.)

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

[2009-07-28 20:49:00] j...@php.net

My /home dir isn't writable by anyone. So how could it work? And what 
does setting those permissions on strace help to debug this?

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

[2009-07-28 20:12:08] rusxakep at gmail dot com

Jani,

Is bug reproducing ONLY with using "set execution bit"!

Simple way test with strace output:

1. Temprorarly set "chmod 6755" to /usr/bin/strace binary for correct
test.
2. Create simple CONSOLE test.php file and place to /home/1/ directory
(owner should be root.root):

#!/usr/bin/php -q
<?php
if (!file_exists("/home/1/2/3")) mkdir("/home/1/2/3",0700,true);
?>

3. Run this script under any unprivileged user with next cmd: "su -
someuser -c "/usr/bin/strace /home/1/test.php"

First run test.php create directory /home/1/2 and /home/1/2/3
successfully with "someuser" owner and 0700.

Second run test.php script must be finish w/o any messages, because
directory already exists, but function file_exists() incorrectly fulfils
and produces that the directory does not exist, though it is. 

Try it!

If something else is not clear, I will explain more in detail.)

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

[2009-07-28 19:52:47] j...@php.net

Your report is quite confusing. You talk about creating /home/user/2/3

directories (note the missing 1?) but your straces show quite different

outputs. Please, come up with _simple_ way to reproduce this. Simple 
meaning ONE php (and PHP ONLY!) file.

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

[2009-07-27 09:19:12] rusxakep at gmail dot com

Added -D__USE_FILE_OFFSET64 to CFLAGS and re-compile all php stuff.

Example of compilation (correct?):

"/bin/sh
/var/tmp/portage/dev-lang/php-5.2.99/work/php5.2-200907241430/libtool
--silent --preserve-dup-deps --mode=compile i686-pc-linux-gnu-gcc 
-IZend/
-I/var/tmp/portage/dev-lang/php-5.2.99/work/php5.2-200907241430/Zend/
-DPHP_ATOM_INC
-I/var/tmp/portage/dev-lang/php-5.2.99/work/php5.2-200907241430/include
-I/var/tmp/portage/dev-lang/php-5.2.99/work/php5.2-200907241430/main
-I/var/tmp/portage/dev-lang/php-5.2.99/work/php5.2-200907241430
-I/var/tmp/portage/dev-lang/php-5.2.99/work/php5.2-200907241430/ext/date/lib
-I/usr/include/libxml2 -I/usr/include/freetype2
-I/var/tmp/portage/dev-lang/php-5.2.99/work/php5.2-200907241430/ext/mbstring/oniguruma
-I/var/tmp/portage/dev-lang/php-5.2.99/work/php5.2-200907241430/ext/mbstring/libmbfl
-I/var/tmp/portage/dev-lang/php-5.2.99/work/php5.2-200907241430/ext/mbstring/libmbfl/mbfl
-I/usr/include/mysql
-I/var/tmp/portage/dev-lang/php-5.2.99/work/php5.2-200907241430/TSRM
-I/var/tmp/portage/dev-lang/php-5.2.99/work/php5.2-200907241430/Zend   
-I/usr/include -march=pentium4 -O2 -fomit-frame-pointer -pipe
-D_GNU_SOURCE -D__USE_FILE_OFFSET64  -prefer-non-pic -c
/var/tmp/portage/dev-lang/php-5.2.99/work/php5.2-200907241430/Zend/zend_objects.c
-o Zend/zend_objects.lo
/bin/sh
/var/tmp/portage/dev-lang/php-5.2.99/work/php5.2-200907241430/libtool
--silent --preserve-dup-deps --mode=compile i686-pc-linux-gnu-gcc 
-IZend/
-I/var/tmp/portage/dev-lang/php-5.2.99/work/php5.2-200907241430/Zend/
-DPHP_ATOM_INC
-I/var/tmp/portage/dev-lang/php-5.2.99/work/php5.2-200907241430/include
-I/var/tmp/portage/dev-lang/php-5.2.99/work/php5.2-200907241430/main
-I/var/tmp/portage/dev-lang/php-5.2.99/work/php5.2-200907241430
-I/var/tmp/portage/dev-lang/php-5.2.99/work/php5.2-200907241430/ext/date/lib
-I/usr/include/libxml2 -I/usr/include/freetype2
-I/var/tmp/portage/dev-lang/php-5.2.99/work/php5.2-200907241430/ext/mbstring/oniguruma
-I/var/tmp/portage/dev-lang/php-5.2.99/work/php5.2-200907241430/ext/mbstring/libmbfl
-I/var/tmp/portage/dev-lang/php-5.2.99/work/php5.2-200907241430/ext/mbstring/libmbfl/mbfl
-I/usr/include/mysql
-I/var/tmp/portage/dev-lang/php-5.2.99/work/php5.2-200907241430/TSRM
-I/var/tmp/portage/dev-lang/php-5.2.99/work/php5.2-200907241430/Zend   
-I/usr/include -march=pentium4 -O2 -fomit-frame-pointer -pipe
-D_GNU_SOURCE -D__USE_FILE_OFFSET64  -prefer-non-pic -c
/var/tmp/portage/dev-lang/php-5.2.99/work/php5.2-200907241430/Zend/zend_object_handlers.c
-o Zend/zend_object_handlers.lo"


My problem not resolved yet :(

access("/home/1/2/3", F_OK)             = -1 EACCES (Permission
denied)
stat64("/home/1/2", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
mkdir("/home/1/2/3", 0700)              = -1 EEXIST (File exists)
write(1, "\nWarning: mkdir(): File exists in"..., 61
Warning: mkdir(): File exists in /home/1/test.php on line 3
) = 61)

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

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    http://bugs.php.net/49049

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