Bug #12339 Updated: Seg Fault in PHP under 2k /w ODBC and Globals (apparently)...
| From: | nlange at usb dot com | Date: | Tue, 24 Jul 2001 14:47:12 +0000 |
| Subject: | Bug #12339 Updated: Seg Fault in PHP under 2k /w ODBC and Globals (apparently)... | ||
| References: | 1 | Groups: | php.dev |
| Request: | Send a blank email to php-dev+get-60864@lists.php.net to get a copy of this message | ||
ID: 12339
User updated by: nlange@usb.com
Reported By: nlange@usb.com
Status: Feedback
Bug Type: ODBC related
Operating System: Win2k
PHP Version: 4.0.6
New Comment:
Sigh...
I'm not so sure it's with globals anymore, I just knowit's with ODBC
I had this problem once before and ended up re-writing and inlining all my code to get it go away.
(side note, php cvs build for win2k from php4win project (approaching 4.0.7 release) exhibited the
same problem)
this particular file is also the only one to crash out of all the php files.. what makes it unique
is the rather long subroutine
but I've gotten a stack trace and some more information
it dies with the following
<b>Fatal error</b>: Call to undefined function: () in <b>C:\dev\isis\web\view_
user_info.php</b> on line <b>39</b><br>
and it's 0Xc00000005, typically a buffer issue...
01222f10()
ODBC32! 1f7d792e()
ODBC32! 1f7d7866()
PHP4TS! 100026a9()
PHP! 00401a43()
PHP! 0040207b()
KERNEL32! 77e97d08()
echo's removed, but assignments left in to give a general idea what's going on...
Offending Trimmed Code
----------------------
function report($query, $tarray,$sarray, $empty_msg,$total,$is_last = 0,
$zhead="")
{
$dmy = sizeof($tarray); //dummy var
$elem_colspan = ((($total-($total%$dmy))/$dmy) == 1)?"":"COLSPAN
=\"".(($total-($total%$dmy))/$dmy)."\"";
//header on table 1
if (strlen($zhead)>0)
{
$CLASS =
"CLASS=\"".$sarray['Header']['Class']."\"";
$STYLE =
"STYLE=\"".$sarray['Header']['Style']."\"";
}
foreach ($tarray as $header => $tname)
{
$CLASS = ($sarray[$header]['THClass'] !=
'')?"CLASS=\"".$sarray[$header]['THClass']."\"":"CLASS=\"sort\"";
$STYLE = ($sarray[$header]['THStyle'] !=
'')?"STYLE=\"".$sarray[$header]['THStyle']."\"":"";
}
echo "</TR>\n";
$DBHX = odbc_connect("QUAL7000","QUAL_RPT","QUALRPT") or
die (odbc_errormsg());
/**********************
Dies Here
*************************/
$sh = odbc_prepare($DBHX,$query) or die (odbc_errormsg().$query);
odbc_execute($sh) or die (odbc_errormsg());
$rownum = 0;
while(odbc_fetch_into($sh,$rownum,$rez))
{
$trim_row($rez);
reset($rez);
foreach ($tarray as $header => $s)
{
$CLASS = ($sarray[$header]['TDClass'] !=
'')?"CLASS=\"".$sarray[$header]['TDClass']."\"":"CLASS=\"main\"";
$STYLE = ($sarray[$header]['TDStyle'] !=
'')?"STYLE=\"".$sarray[$header]['TDStyle']."
$x\"":"STYLE=\"$x\"";
next($rez);
}
}
if (odbc_num_rows($sh) == 0)
{
$c = 0;
foreach ($tarray as $header => $s)
{
$CLASS = ($sarray[$header]['TDClass'] !=
'')?"CLASS=\"".$sarray[$header]['TDClass']."\"":"CLASS=\"main\"";
$STYLE = ($sarray[$header]['TDStyle'] !=
'')?"STYLE=\"".$sarray[$header]['TDStyle']."
$x\"":"STYLE=\"$x\"";
if ((++$c) < sizeof($tarray))
{
}
else
{
}
}
echo '</TR>';
}
odbc_free_result($sh);
odbc_close($DBHX);
}
report($queryuso,$uasuso_trans,$uasuso_style,"User does not have access to any
objects",sizeof($uasusa_trans)*2,1,"Object Access");
Previous Comments:
------------------------------------------------------------------------
[2001-07-24 10:31:14] andy@php.net
could you send in a short, yet more complete script than what
you have given us now.
------------------------------------------------------------------------
[2001-07-24 10:20:04] nlange@usb.com
All right, this is a rough one to report as I only have vagure ideas as to what's going on ...
but it really sucks either way.
the function call...
report($queryusa,$uasusa_trans,$uasusa_style,"User does not have access to any
systems",sizeof($uasusa_trans)*2,0,"System Access");
the function
function report($query, $tarray,$sarray, $empty_msg,$total,$is_last = 0, $zhead="")
The crash
the overwrite (I'm convinced it's an overwrite because EIP is 0x00d72f10 and memory is the
same value, and a rudimentary jump (albeit confusedly)into msdev vdebug showed something similar)
happens at the call to odbc prepare...
$sh = odbc_prepare($DBH,$query) or die (odbc_errormsg().$query);
the odbc_connect looks like
$DBH =
odbc_connect($GLOBALS['DSN'],$GLOBALS['DSN_USER'],$GLOBALS['DSN_PW'])
or die (odbc_errormsg());
as it stands now I am under a deadline so I can't dig too deep (I have to find a workaround)
,but I'll follow up with any supplemental material I can..
oh, ODBC Driver is Tandem NONStop..
------------------------------------------------------------------------
Edit this bug report at http://bugs.php.net/?id=12339&edit=1