Description:
------------
Hi!, I?m have installed PDO_ODBC with unixodbc. I?m using it with Informix IDS 10 and php 5.2.5.

It works perfectly until I try to fetch a row with a datetime field = null.
It generates a SEGFAULT in apache. If the datetime field has any value, it works perfectly. But with a null value it crash.

I also try with iODBC and the result was the same.


Thanks and Regards

Emiliano S. Romero



Reproduce code:
---------------
$r = $pdo->query("select id,date from table");

while($a = $r->fetch()) {
  var_dump($a);
  // it'll echo until a null value in date
}

Expected result:
----------------
Fetched Data

Actual result:
--------------
Core was generated by `/usr/sbin/apache2-php5 -D PHP5 -D DEFAULT_VHOST -D INFO -d /usr/lib64/apache2-p'.
Program terminated with signal 11, Segmentation fault.

#0  0x00002b6375fe029c in memcpy () from /lib/libc.so.6
(gdb) bt
#0  0x00002b6375fe029c in memcpy () from /lib/libc.so.6
#1  0x00000000ffffffff in ?? ()
#2  0x0000000000e0a908 in ?? ()
#3  0x0000000000c94d78 in ?? ()
#4  0x0000000000000090 in ?? ()
#5  0x0000000000e0aa98 in ?? ()
#6  0x00002b6378d9de40 in _estrndup () from /usr/lib64/apache2-php5/modules/libphp5.so
#7  0x00002b637b38a7e6 in fetch_value (stmt=0xe00031, dest=0xe086e0, colno=<value optimized out>,
    type_override=<value optimized out>) at
/tmp/pear/download/PDO-1.0.3/pdo_stmt.c:559
#8  0x00002b637b38b05e in do_fetch (stmt=0xc94d78, do_bind=<value optimized
out>, return_value=0xdfe9f8, how=14680984,
    ori=<value optimized out>, offset=<value optimized out>, return_all=0x0) at /tmp/pear/download/PDO-1.0.3/pdo_stmt.c:967
#9  0x00002b637b38c44b in zim_PDOStatement_fetch (ht=<value optimized out>, return_value=0xdfe9f8,
    return_value_ptr=<value optimized out>, this_ptr=<value optimized out>, return_value_used=<value optimized out>)
    at /tmp/pear/download/PDO-1.0.3/pdo_stmt.c:1227
#10 0x00002b6378dd35b2 in ?? () from
/usr/lib64/apache2-php5/modules/libphp5.so
#11 0x00002b6378dd26e2 in execute () from /usr/lib64/apache2-php5/modules/libphp5.so
#12 0x00002b6378dd2e73 in ?? () from
/usr/lib64/apache2-php5/modules/libphp5.so
#13 0x00002b6378dd26e2 in execute () from /usr/lib64/apache2-php5/modules/libphp5.so
#14 0x00002b6378dd2e73 in ?? () from
/usr/lib64/apache2-php5/modules/libphp5.so
#15 0x00002b6378dd26e2 in execute () from /usr/lib64/apache2-php5/modules/libphp5.so
#16 0x00002b6378db5956 in zend_execute_scripts () from /usr/lib64/apache2-php5/modules/libphp5.so
#17 0x00002b6378d77a6a in php_execute_script () from /usr/lib64/apache2-php5/modules/libphp5.so
#18 0x00002b6378e2b293 in ?? () from
/usr/lib64/apache2-php5/modules/libphp5.so
#19 0x0000000000431293 in ap_run_handler ()
#20 0x0000000000434136 in ap_invoke_handler ()
#21 0x000000000043d8ee in ap_process_request ()
#22 0x000000000043b056 in ?? ()
#23 0x0000000000437a24 in ap_run_process_connection ()
#24 0x0000000000441099 in ?? ()
#25 0x00000000004412e8 in ?? ()
#26 0x0000000000441ae2 in ap_mpm_run ()
#27 0x0000000000420a39 in main ()