Bug #54007 [Opn->Fbk]: odbc seg faults with null data returned from DB2
Edit report at http://bugs.php.net/bug.php?id=54007&edit=1
ID: 54007
Updated by: kalle@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:
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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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