Edit report at http://bugs.php.net/bug.php?id=54007&edit=1

 ID:                 54007
 Updated by:         ka...@php.net
 Reported by:        ken at focusschoolsoftware dot com
 Summary:            odbc seg faults with null data returned from DB2
-Status:             Open
+Status:             Feedback
 Type:               Bug
 Package:            ODBC related
 Operating System:   Linux
 PHP Version:        5.3.5
 Block user comment: N
 Private report:     N

 New Comment:

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 for *NIX and
http://bugs.php.net/bugs-generating-backtrace-win32.php for Win32

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.




Previous Comments:
------------------------------------------------------------------------
[2011-02-13 16:23:02] ken at focusschoolsoftware dot com

Description:
------------
This bug happens in many of the odbc functions that handle results from
a query, 

but I'll point out one example:



The default case in php_odbc.c:

default:

if (result->values[field_ind].vallen == SQL_NULL_DATA) {

     RETURN_NULL();

} else {

     RETURN_STRINGL(result->values[field_ind].value, result-

>values[field_ind].vallen, 1);

}

break;



result->values[field_ind].vallen seems to be corrupted when fetching
NULL data 

on a 64-bit system.  Since it does not equal 

SQL_NULL_DATA, the else clause is executed causing a seg fault because
it is 

trying to handle a NULL case.

Test script:
---------------
I have no test script to show, because the only as400/db2 server I have
access to is behind a VPN at the moemnt.



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



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