ID:               43410
 Updated by:       [EMAIL PROTECTED]
 Reported By:      andy_wolk at mail dot ru
-Status:           Open
+Status:           Feedback
 Bug Type:         SNMP related
 Operating System: Windows 2003 Server Enterprise
 PHP Version:      5.2.5
 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:
------------------------------------------------------------------------

[2007-11-26 11:50:45] andy_wolk at mail dot ru

Description:
------------
SNMP functions cause "PHP has encountered an Access Violation" when
wrong IP or Community String.

IIS 6 + PHP5.2.2dev isapi module.
PHP_snmp.dll (ver 5.2.2.2)
All next php versions has the same problem.

After this error, IIS does not can operate with snmp module and needs
to be restarted.

Event viewer: Faulting application w3wp.exe, version 6.0.3790.3959,
faulting module unknown, version 0.0.0.0, fault address 0x010cfdf4.

No errors in php_error.log


Reproduce code:
---------------
<html>

<head>
  <title></title>
</head>

<body>

<?php
 echo "Start...";
 flush();
 $communitystring=''; // Your device must have this string no empty!
 $ip='10.200.202.97'; // Sometimes this error occured, when there is no
Device in a network with this IP.
 for ($i=1;$i<14;$i++)
  {
   $port=100+$i;
   $oid='.1.3.6.1.2.1.26.2.1.1.5.${port}.1';
   @snmpget($ip,$communitystring,$oid);
   $oid='.1.3.6.1.2.1.26.2.1.1.5.${port}.1';
   @snmpwalk($ip,$communitystring,$oid);

   $oid='.1.3.6.1.2.1.2.2.1.7.${port}';
   @snmpget($ip,$communitystring,$oid);
   $oid='.1.3.6.1.2.1.2.2.1.7.${port}';
   @snmpwalk($ip,$communitystring,$oid);

   $oid='.1.3.6.1.4.1.43.10.22.1.1.3.1.$i';
   @snmpget($ip,$communitystring,$oid);
   $oid='.1.3.6.1.4.1.43.10.22.1.1.3.1.$i';
   @snmpwalk($ip,$communitystring,$oid);

   $oid='.1.3.6.1.4.1.43.10.22.1.1.5.1.$i';
   @snmpget($ip,$communitystring,$oid);
   $oid='.1.3.6.1.4.1.43.10.22.1.1.5.1.$i';
   @snmpwalk($ip,$communitystring,$oid);

   $oid='.1.3.6.1.2.1.26.2.1.1.3.${port}.1';
   @snmpget($ip,$communitystring,$oid);
   $oid='.1.3.6.1.2.1.26.2.1.1.3.${port}.1';
   @snmpwalk($ip,$communitystring,$oid);
  }
 echo "Finish";

?>

</body>

</html>

Expected result:
----------------
Start...Finish

Actual result:
--------------
Start...PHP has encountered an Access Violation at xxxxxxxx


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


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