[Nagiosplug-devel] error in check_snmp (function spopen)

[Thomas Guyot-Sionnest]

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On 28/05/08 03:24 PM, Uwe Knop wrote:
> Hallo,
> 
> 
> i use externel commands with  'extend' function  with net-snmp.
> 
> Here is an sample service check:
> 
> check_snmp!public!'NET-SNMP-EXTEND-MIB::nsExtendOutputFull.\"testname\"'
> 
> Access with numeric OID's  as far as i know,  not possible.

Have you tried snmptranslate -On <OID> ? It should give you the numeric OID.

Text strings in OIDs as encoded in ASCII using decimal notation, the
first OID being the length of the string. If you want an example in Perl
see my check_bigip_* plugins at
http://www.nagiosexchange.org/cgi-bin/page.cgi?g=2447.html;d=1

Relevant code excerpts:

check_bigip_pool:
  my $oidPoolName = $PoolName;
  $oidPoolName =~ s/(.)/sprintf('.%u', ord($1))/eg;
  $oidPoolName = length($PoolName) . $oidPoolName;
  # Then append $oidPoolName to the base OID

check_bigip_vs:
  $oid = $bip{$software}{'OID'};
  my $vslength = length($virtualServer);
  $virtualServer =~ s/(.)/sprintf('.%u', ord($1))/eg;
  $oid .= $vslength . $virtualServer;

Thomas
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