Bug #62300 [Opn]: Wrong NULL checks

From: Date: Sat, 16 Jun 2012 03:13:51 +0000
Subject: Bug #62300 [Opn]: Wrong NULL checks
References: 1  Groups: php.bugs 
Request: Send a blank email to php-bugs+get-171301@lists.php.net to get a copy of this message
Edit report at https://bugs.php.net/bug.php?id=62300&edit=1

 ID:                 62300
 User updated by:    qiyuhua at 126 dot com
 Reported by:        qiyuhua at 126 dot com
 Summary:            Wrong NULL checks
 Status:             Open
 Type:               Bug
 Package:            InterBase related
 Operating System:   ubuntu 10.04
 PHP Version:        5.4.3
 Block user comment: N
 Private report:     N

 New Comment:

I have updated the patch file.
Test to reproduce the bug :
1.Create a table with not null field 
2.Add trigger filling this field before insert 
3.Try from PHP insert null value in the way of "ibase_query($dbh, "insert into hua values
(3,?)",null)", which is the key for the reproduction. And if we insert null value in the
way of "ibase_query($dbh, "insert into hua values (3,null)")", there is no
error.


Previous Comments:
------------------------------------------------------------------------
[2012-06-12 23:23:26] felipe@php.net

Please, send a unified diff next time. Thanks.

------------------------------------------------------------------------
[2012-06-12 13:00:42] qiyuhua at 126 dot com

Description:
------------
As described in https://bugs.php.net/bug.php?id=54426, Wrong NULL
checks was found. However, we find that the bug is not well repaired. And we can still reproduce the
bug.
Removing the "continue" statement in the block of Null check code in ibase_query.c should
be make everything work well:

Modified: php/php-src/trunk/ext/interbase/ibase_query.c
===================================================================
679c679
< 				continue;
---
> 				//continue;
===================================================================


Test script:
---------------
The two simple test scripts can be available at https://sourceforge.net/projects/wautorepair/files/test%20cases/
1)create a table like "createtable.php";
2)insert a NULL value like "huahua.php"

then, some errors will occur.



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



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Edit this bug report at https://bugs.php.net/bug.php?id=62300&edit=1


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