#34415 [Com]: seg fault when using scandir
ID: 34415
Comment by: aarondoom at cookiedoom dot com
Reported By: worthbob01 at yahoo dot com
Status: No Feedback
Bug Type: Reproducible crash
Operating System: RHES3
PHP Version: 5CVS-2005-09-09 (snap)
New Comment:
Your function is stuck in a recursive loop, eventually this will seg
fault.
If you wanna see it in action add the following lines to the top of the
function.
static $depth = 0;
echo $depth++;
To fix the problem remove the . \\ from the tail of
scandir_recursive($directory.$folderItem.\\);.
Here's a cleaned up function to not display errors and so forth.
function scandir_recursive($directory)
{
$folderContents = array();
$directory = realpath($directory) . DIRECTORY_SEPARATOR;
$folderItems = @scandir($directory);
if (!is_array($folderItems)) return No access;
foreach ($folderItems as $folderItem) {
if (substr($folderItem, 0, 1) != .) { // Ignore anything
hidden
if (is_dir($directory . $folderItem .
DIRECTORY_SEPARATOR))
$folderContents[$folderItem] =
scandir_recursive($directory . $folderItem);
else
$folderContents[] = $folderItem;
}
}
return $folderContents;
}
^_^
Previous Comments:
[2005-09-18 01:00:02] 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.
[2005-09-10 23:21:24] [EMAIL PROTECTED]
Thank you for this bug report. To properly diagnose the problem, we
need a backtrace to see what is happening behind the scenes. To
find out how to generate a backtrace, please read
http://bugs.php.net/bugs-generating-backtrace.php
Once you have generated a backtrace, please submit it to this bug
report and change the status back to Open. Thank you for helping
us make PHP better.
[2005-09-10 17:04:50] worthbob01 at yahoo dot com
[EMAIL PROTECTED] design]# date; php --version; php sample.php ; date
Sat Sep 10 10:02:20 CDT 2005
PHP 5.1.0-dev (cli) (built: Sep 9 2005 12:59:00)
Copyright (c) 1997-2005 The PHP Group
Zend Engine v2.1.0-dev, Copyright (c) 1998-2005 Zend Technologies
Segmentation fault
Sat Sep 10 10:02:21 CDT 2005
[2005-09-07 23:43:42] [EMAIL PROTECTED]
Please try using this CVS snapshot:
http://snaps.php.net/php5-latest.tar.gz
For Windows:
http://snaps.php.net/win32/php5-win32-latest.zip
[2005-09-07 23:13:41] worthbob01 at yahoo dot com
Description:
recursive scandir causes seg fault. code example from
http://us2.php.net/scandir User Contributed Notes.
Reproduce code:
---
?php
$afiles = scandir_recursive(/tmp);
function scandir_recursive($directory)
{
$folderContents = array();
$directory = realpath($directory).DIRECTORY_SEPARATOR;
foreach (scandir($directory) as $folderItem) {
if ($folderItem != . AND $folderItem != ..) {
if (is_dir($directory.$folderItem.DIRECTORY_SEPARATOR)) {
$folderContents[$folderItem] = scandir_recursive(
$directory.$folderItem.\\);
}
else {
$folderContents[] = $folderItem;
}
}
}
return $folderContents;
}
?
Expected result:
nothing as there is not output in the sample. just expected it to run
without a seg fault.
Actual result:
--
[EMAIL PROTECTED] design]# date;php sample.php;date
Wed Sep 7 16:11:11 CDT 2005
Segmentation fault
Wed Sep 7 16:11:12 CDT 2005
[EMAIL PROTECTED] design]#
--
Edit this bug report at http://bugs.php.net/?id=34415edit=1
#33579 [Bgs]: Functions not usable when require()'d from parent later in a child.
ID: 33579
User updated by: aarondoom at cookiedoom dot com
Reported By: aarondoom at cookiedoom dot com
Status: Bogus
Bug Type: Scripting Engine problem
Operating System: Gentoo Linux 1.6.12
PHP Version: 4.4.0
New Comment:
Thank you for clarifying that.
Your answer is acceptable.
Previous Comments:
[2005-07-06 07:22:36] [EMAIL PROTECTED]
Do you understand that require_once/include_once does exactly the same
as these define checks you are using to prevent multiple exclusion?
In your particular example you are doing a conditional function
definition (since it is inside an if clause) which means the function
needs to be defined at runtime and cannot be added at compile-time.
This usually shouldn't matter, but you are trying to call the function
before you define it. In Funcs.inc you require DB.inc which calls
Bleh() and then after that require you define the Bleh() function.
This simply won't work, and it isn't a bug. If you are doing to do
conditional function definitions, you *must* define your functions
before you try to call them.
So yes, we understand perfectly what is going on. If you look at the
bug number for this bug, you might notice that this is number 33579.
That's a lot of bugs. We really can't take the time to explain each
one like this. If we say something isn't a bug, 99.9% of the time, it
isn't. The occasional one slips through, of course, but in most cases,
including this one, it is simple user error that is better explained on
one of the many support lists.
[2005-07-06 03:04:52] aarondoom at cookiedoom dot com
It is obvious you have no idea what is going on and the reason they
need to be there.
I may from one page load one include instead of another. I'm not going
to use ugly stupid code when there are hundreds of files to update
merely to work around this bug.
There is a problem here and it is within the PHP engine. I'm sorry
that you do not wish to fix it.
I sincerely hope you people are more helpful to others.
Thanks anyway for not looking into the issue.
[2005-07-06 01:51:31] [EMAIL PROTECTED]
Sorry, but your problem does not imply a bug in PHP itself. For a
list of more appropriate places to ask for help using PHP, please
visit http://www.php.net/support.php as this bug system is not the
appropriate forum for asking support questions. Due to the volume
of reports we can not explain in detail here why your report is not
a bug. The support channels will be able to provide an explanation
for you.
Thank you for your interest in PHP.
Try nuke those stupid define()'s and use require_once() instead..
[2005-07-06 01:42:27] aarondoom at cookiedoom dot com
Here's an update to the code, this reproduces the Bug.
?php // Test.php
require(Header.inc);
Bleh();
?
?php // Header.inc
require(Funcs.inc);
require(Emails.inc);
Bleh(); // Won't error
?
?php // Funcs.inc
if (!defined(_FUNCS_INC_)) {
define(_FUNCS_INC_, true);
require(DB.inc);
function Bleh() { printf(Blah\n); }
} // _FUNCS_INC_
?
?php // Emails.inc
if (!defined(_EMAILS_INC_)) {
define(_EMAILS_INC_, true);
require(DB.inc);
} // _EMAILS_INC_
?
?php // DB.inc
if (!defined(_DB_INC_)) {
define(_DB_INC_, true);
require(Funcs.inc);
Bleh();
} // _DB_INC_
?
[2005-07-06 01:30:39] aarondoom at cookiedoom dot com
http://wwwtest.amberalert911.net/debug.php
debug.php includes funcs.inc
funcs.inc includes emails.inc global.inc
emails.inc includes db.inc funcs.inc forms.inc MailServer.inc
db.inc includes funcs.inc global.inc
forms.inc includes db.inc
As you can see, it's not working as you defined. If this is not a bug
with PHP, perhaps it's a bug in Apache?
I was able to execute my example via the command line PHP, but not the
debug.php via the command line. Not sure what the difference really
is. The example is much simpler of course.
All of the listed files are quite large, no smaller than 200 lines each
so I'm not going to post them here, but look at the URI listed above.
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/33579
--
Edit this bug report at http://bugs.php.net/?id=33579edit=1
#33579 [NEW]: Functions not usable when require'd from parent later in a child.
From: aarondoom at cookiedoom dot com
Operating system: Gentoo Linux 1.6.12
PHP version: 4.3.11
PHP Bug Type: Unknown/Other Function
Bug description: Functions not usable when require'd from parent later in a
child.
Description:
When a parent document requires a source file and then requires a second
file that requires the same as above it cannot access the functions in the
already required file from the parent, but cannot use or redefine the
functions that are required.
Using code that if (!defined(_FUNCS_INC_)) { define(_FUNCS_INC_,
true); function Bleh($Bloop) { return $Bloop; } } // _FUNCS_INC_.
This is a problem because the _FUNCS_INC_ is defined as well as the
functions defined inside of the scope of the document though
function_exists will return false and calling the function will obviously
fail for that reason, I cannot redefine those functions in the
sub-document or I'll get Cannot redefine function bleh... even though I
can't use it.
Though it is easy enough to work around the issue (With the if
(!defined()) stuff require_once doesn't even make it work BTW) I'm
reorganizing several hundred files, at least 1/3 of which are includes
which need to be re-ordered.
Any help would be greatly appreciated.
Reproduce code:
---
?php // Funcs.inc
if (!defined(_FUNCS_INC_)) {
define(_FUNCS_INC_, true);
function Bleh() { printf(Blah\n); }
} // _FUNCS_INC_
?
?php // DB.inc
require(Funcs.inc);
Bleh();
?
?php // Header.inc
require(Funcs.inc);
require(DB.inc);
Bleh(); // Won't error
?
Expected result:
Blah\n
Blah\n
Actual result:
--
Fatal error: Call to undefined function: bleh() in
/var/www/localhost/includes/DB.inc on line 3
--
Edit bug report at http://bugs.php.net/?id=33579edit=1
--
Try a CVS snapshot (php4): http://bugs.php.net/fix.php?id=33579r=trysnapshot4
Try a CVS snapshot (php5.0):
http://bugs.php.net/fix.php?id=33579r=trysnapshot50
Try a CVS snapshot (php5.1):
http://bugs.php.net/fix.php?id=33579r=trysnapshot51
Fixed in CVS:http://bugs.php.net/fix.php?id=33579r=fixedcvs
Fixed in release:http://bugs.php.net/fix.php?id=33579r=alreadyfixed
Need backtrace: http://bugs.php.net/fix.php?id=33579r=needtrace
Need Reproduce Script: http://bugs.php.net/fix.php?id=33579r=needscript
Try newer version: http://bugs.php.net/fix.php?id=33579r=oldversion
Not developer issue: http://bugs.php.net/fix.php?id=33579r=support
Expected behavior: http://bugs.php.net/fix.php?id=33579r=notwrong
Not enough info:
http://bugs.php.net/fix.php?id=33579r=notenoughinfo
Submitted twice:
http://bugs.php.net/fix.php?id=33579r=submittedtwice
register_globals:http://bugs.php.net/fix.php?id=33579r=globals
PHP 3 support discontinued: http://bugs.php.net/fix.php?id=33579r=php3
Daylight Savings:http://bugs.php.net/fix.php?id=33579r=dst
IIS Stability: http://bugs.php.net/fix.php?id=33579r=isapi
Install GNU Sed: http://bugs.php.net/fix.php?id=33579r=gnused
Floating point limitations: http://bugs.php.net/fix.php?id=33579r=float
No Zend Extensions: http://bugs.php.net/fix.php?id=33579r=nozend
MySQL Configuration Error: http://bugs.php.net/fix.php?id=33579r=mysqlcfg
#33579 [Bgs-Opn]: Functions not usable when require'd from parent later in a child.
ID: 33579
User updated by: aarondoom at cookiedoom dot com
Reported By: aarondoom at cookiedoom dot com
-Status: Bogus
+Status: Open
Bug Type: Unknown/Other Function
Operating System: Gentoo Linux 1.6.12
-PHP Version: 4.3.11
+PHP Version: 4.4.0
New Comment:
http://wwwtest.amberalert911.net/debug.php
debug.php includes funcs.inc
funcs.inc includes emails.inc global.inc
emails.inc includes db.inc funcs.inc forms.inc MailServer.inc
db.inc includes funcs.inc global.inc
forms.inc includes db.inc
As you can see, it's not working as you defined. If this is not a bug
with PHP, perhaps it's a bug in Apache?
I was able to execute my example via the command line PHP, but not the
debug.php via the command line. Not sure what the difference really
is. The example is much simpler of course.
All of the listed files are quite large, no smaller than 200 lines each
so I'm not going to post them here, but look at the URI listed above.
Previous Comments:
[2005-07-06 00:42:33] [EMAIL PROTECTED]
Sorry, but your problem does not imply a bug in PHP itself. For a
list of more appropriate places to ask for help using PHP, please
visit http://www.php.net/support.php as this bug system is not the
appropriate forum for asking support questions. Due to the volume
of reports we can not explain in detail here why your report is not
a bug. The support channels will be able to provide an explanation
for you.
Thank you for your interest in PHP.
Works just fine with all versions I can test right now (4.3, 4.4, 5.0,
5.1 etc.).
[2005-07-05 23:37:44] aarondoom at cookiedoom dot com
Description:
When a parent document requires a source file and then requires a
second file that requires the same as above it cannot access the
functions in the already required file from the parent, but cannot use
or redefine the functions that are required.
Using code that if (!defined(_FUNCS_INC_)) { define(_FUNCS_INC_,
true); function Bleh($Bloop) { return $Bloop; } } // _FUNCS_INC_.
This is a problem because the _FUNCS_INC_ is defined as well as the
functions defined inside of the scope of the document though
function_exists will return false and calling the function will
obviously fail for that reason, I cannot redefine those functions in
the sub-document or I'll get Cannot redefine function bleh... even
though I can't use it.
Though it is easy enough to work around the issue (With the if
(!defined()) stuff require_once doesn't even make it work BTW) I'm
reorganizing several hundred files, at least 1/3 of which are includes
which need to be re-ordered.
Any help would be greatly appreciated.
Reproduce code:
---
?php // Funcs.inc
if (!defined(_FUNCS_INC_)) {
define(_FUNCS_INC_, true);
function Bleh() { printf(Blah\n); }
} // _FUNCS_INC_
?
?php // DB.inc
require(Funcs.inc);
Bleh();
?
?php // Header.inc
require(Funcs.inc);
require(DB.inc);
Bleh(); // Won't error
?
Expected result:
Blah\n
Blah\n
Actual result:
--
Fatal error: Call to undefined function: bleh() in
/var/www/localhost/includes/DB.inc on line 3
--
Edit this bug report at http://bugs.php.net/?id=33579edit=1
#33579 [Opn]: Functions not usable when require'd from parent later in a child.
ID: 33579
User updated by: aarondoom at cookiedoom dot com
Reported By: aarondoom at cookiedoom dot com
Status: Open
Bug Type: Unknown/Other Function
Operating System: Gentoo Linux 1.6.12
PHP Version: 4.4.0
New Comment:
Here's an update to the code, this reproduces the Bug.
?php // Test.php
require(Header.inc);
Bleh();
?
?php // Header.inc
require(Funcs.inc);
require(Emails.inc);
Bleh(); // Won't error
?
?php // Funcs.inc
if (!defined(_FUNCS_INC_)) {
define(_FUNCS_INC_, true);
require(DB.inc);
function Bleh() { printf(Blah\n); }
} // _FUNCS_INC_
?
?php // Emails.inc
if (!defined(_EMAILS_INC_)) {
define(_EMAILS_INC_, true);
require(DB.inc);
} // _EMAILS_INC_
?
?php // DB.inc
if (!defined(_DB_INC_)) {
define(_DB_INC_, true);
require(Funcs.inc);
Bleh();
} // _DB_INC_
?
Previous Comments:
[2005-07-06 01:30:39] aarondoom at cookiedoom dot com
http://wwwtest.amberalert911.net/debug.php
debug.php includes funcs.inc
funcs.inc includes emails.inc global.inc
emails.inc includes db.inc funcs.inc forms.inc MailServer.inc
db.inc includes funcs.inc global.inc
forms.inc includes db.inc
As you can see, it's not working as you defined. If this is not a bug
with PHP, perhaps it's a bug in Apache?
I was able to execute my example via the command line PHP, but not the
debug.php via the command line. Not sure what the difference really
is. The example is much simpler of course.
All of the listed files are quite large, no smaller than 200 lines each
so I'm not going to post them here, but look at the URI listed above.
[2005-07-06 00:42:33] [EMAIL PROTECTED]
Sorry, but your problem does not imply a bug in PHP itself. For a
list of more appropriate places to ask for help using PHP, please
visit http://www.php.net/support.php as this bug system is not the
appropriate forum for asking support questions. Due to the volume
of reports we can not explain in detail here why your report is not
a bug. The support channels will be able to provide an explanation
for you.
Thank you for your interest in PHP.
Works just fine with all versions I can test right now (4.3, 4.4, 5.0,
5.1 etc.).
[2005-07-05 23:37:44] aarondoom at cookiedoom dot com
Description:
When a parent document requires a source file and then requires a
second file that requires the same as above it cannot access the
functions in the already required file from the parent, but cannot use
or redefine the functions that are required.
Using code that if (!defined(_FUNCS_INC_)) { define(_FUNCS_INC_,
true); function Bleh($Bloop) { return $Bloop; } } // _FUNCS_INC_.
This is a problem because the _FUNCS_INC_ is defined as well as the
functions defined inside of the scope of the document though
function_exists will return false and calling the function will
obviously fail for that reason, I cannot redefine those functions in
the sub-document or I'll get Cannot redefine function bleh... even
though I can't use it.
Though it is easy enough to work around the issue (With the if
(!defined()) stuff require_once doesn't even make it work BTW) I'm
reorganizing several hundred files, at least 1/3 of which are includes
which need to be re-ordered.
Any help would be greatly appreciated.
Reproduce code:
---
?php // Funcs.inc
if (!defined(_FUNCS_INC_)) {
define(_FUNCS_INC_, true);
function Bleh() { printf(Blah\n); }
} // _FUNCS_INC_
?
?php // DB.inc
require(Funcs.inc);
Bleh();
?
?php // Header.inc
require(Funcs.inc);
require(DB.inc);
Bleh(); // Won't error
?
Expected result:
Blah\n
Blah\n
Actual result:
--
Fatal error: Call to undefined function: bleh() in
/var/www/localhost/includes/DB.inc on line 3
--
Edit this bug report at http://bugs.php.net/?id=33579edit=1
#33579 [Bgs-Csd]: Functions not usable when require()'d from parent later in a child.
ID: 33579
User updated by: aarondoom at cookiedoom dot com
Reported By: aarondoom at cookiedoom dot com
-Status: Bogus
+Status: Closed
Bug Type: Scripting Engine problem
Operating System: Gentoo Linux 1.6.12
PHP Version: 4.4.0
New Comment:
It is obvious you have no idea what is going on and the reason they
need to be there.
I may from one page load one include instead of another. I'm not going
to use ugly stupid code when there are hundreds of files to update
merely to work around this bug.
There is a problem here and it is within the PHP engine. I'm sorry
that you do not wish to fix it.
I sincerely hope you people are more helpful to others.
Thanks anyway for not looking into the issue.
Previous Comments:
[2005-07-06 01:51:31] [EMAIL PROTECTED]
Sorry, but your problem does not imply a bug in PHP itself. For a
list of more appropriate places to ask for help using PHP, please
visit http://www.php.net/support.php as this bug system is not the
appropriate forum for asking support questions. Due to the volume
of reports we can not explain in detail here why your report is not
a bug. The support channels will be able to provide an explanation
for you.
Thank you for your interest in PHP.
Try nuke those stupid define()'s and use require_once() instead..
[2005-07-06 01:42:27] aarondoom at cookiedoom dot com
Here's an update to the code, this reproduces the Bug.
?php // Test.php
require(Header.inc);
Bleh();
?
?php // Header.inc
require(Funcs.inc);
require(Emails.inc);
Bleh(); // Won't error
?
?php // Funcs.inc
if (!defined(_FUNCS_INC_)) {
define(_FUNCS_INC_, true);
require(DB.inc);
function Bleh() { printf(Blah\n); }
} // _FUNCS_INC_
?
?php // Emails.inc
if (!defined(_EMAILS_INC_)) {
define(_EMAILS_INC_, true);
require(DB.inc);
} // _EMAILS_INC_
?
?php // DB.inc
if (!defined(_DB_INC_)) {
define(_DB_INC_, true);
require(Funcs.inc);
Bleh();
} // _DB_INC_
?
[2005-07-06 01:30:39] aarondoom at cookiedoom dot com
http://wwwtest.amberalert911.net/debug.php
debug.php includes funcs.inc
funcs.inc includes emails.inc global.inc
emails.inc includes db.inc funcs.inc forms.inc MailServer.inc
db.inc includes funcs.inc global.inc
forms.inc includes db.inc
As you can see, it's not working as you defined. If this is not a bug
with PHP, perhaps it's a bug in Apache?
I was able to execute my example via the command line PHP, but not the
debug.php via the command line. Not sure what the difference really
is. The example is much simpler of course.
All of the listed files are quite large, no smaller than 200 lines each
so I'm not going to post them here, but look at the URI listed above.
[2005-07-06 00:42:33] [EMAIL PROTECTED]
Sorry, but your problem does not imply a bug in PHP itself. For a
list of more appropriate places to ask for help using PHP, please
visit http://www.php.net/support.php as this bug system is not the
appropriate forum for asking support questions. Due to the volume
of reports we can not explain in detail here why your report is not
a bug. The support channels will be able to provide an explanation
for you.
Thank you for your interest in PHP.
Works just fine with all versions I can test right now (4.3, 4.4, 5.0,
5.1 etc.).
[2005-07-05 23:37:44] aarondoom at cookiedoom dot com
Description:
When a parent document requires a source file and then requires a
second file that requires the same as above it cannot access the
functions in the already required file from the parent, but cannot use
or redefine the functions that are required.
Using code that if (!defined(_FUNCS_INC_)) { define(_FUNCS_INC_,
true); function Bleh($Bloop) { return $Bloop; } } // _FUNCS_INC_.
This is a problem because the _FUNCS_INC_ is defined as well as the
functions defined inside of the scope of the document though
function_exists will return false and calling the function will
obviously fail for that reason, I cannot redefine those functions in
the sub-document or I'll get Cannot redefine function bleh... even
though I can't use it.
Though it is easy enough to work around the issue (With the if
(!defined()) stuff require_once doesn't even make it work BTW) I'm
reorganizing several hundred files, at least 1/3 of which are includes
which need to be re-ordered.
Any help would be greatly appreciated.
Reproduce code:
---
?php // Funcs.inc
if (!defined(_FUNCS_INC_)) {
define(_FUNCS_INC_, true);
function Bleh() { printf(Blah\n); }
} // _FUNCS_INC_
?
?php // DB.inc
require(Funcs.inc);
Bleh();
?
?php // Header.inc
require(Funcs.inc
