snmprealwalk() - see /* $Id: snmp.c,v 1.11 1999/04/05 18:07:05 sas Exp $ */

The snmprealwalk() function returns an array of OID/value
pairs; however, the OID/value pairs are offset because the returned OID is the requested OID and not the returned OID.

Here is an example:

<script language="php">
$walk = snmprealwalk("127.0.0.1", "public",
"interfaces.ifTable.ifEntry.ifIndex");
reset($walk);                     
while ( list($key,$val) = each($walk) ){
  echo "$key => $val<br>";
}
echo "</PRE>";
</script>
</BODY>
</HTML>

This produces the following (incorrect) output: 

interfaces.ifTable.ifEntry.ifIndex => 1
interfaces.ifTable.ifEntry.ifIndex.1 => 2
interfaces.ifTable.ifEntry.ifIndex.2 => 3
interfaces.ifTable.ifEntry.ifIndex.3 => 4
...

The following change corrects the problem:

29,30c29
< /* $Id: snmp.c,v 1.12 1999/04/05 18:07:05 mhjack Exp $ */
< 
---
> /* $Id: snmp.c,v 1.11 1999/04/05 18:07:05 sas Exp $ */
234c233
<                                               sprint_objid(buf2, vars->name, vars->name_length);
---
>                                               sprint_objid(buf2, name, name_length);

This changes the output to be correct:

interfaces.ifTable.ifEntry.ifIndex.1 => 1
interfaces.ifTable.ifEntry.ifIndex.2 => 2
interfaces.ifTable.ifEntry.ifIndex.3 => 3
interfaces.ifTable.ifEntry.ifIndex.4 => 4
...

A full context diff file is available at:
http://kes.tscnet.com/snmp.c.diff

Thanks..