Re: How to know subagent successfully connects to master agent or not?

Hello!

Thanks. That tip will help me to debug programs.

Also I would like to know result of subagent connection inside of code,
fail/success of init_snmp() function.

I have found a workaround, see below

if(snmp_callback_available(SNMP_CALLBACK_APPLICATION,SNMPD_CALLBACK_REGISTER_OID)
!= SNMPERR_SUCCESS)
  {
  cerr<<"NOT CONNECTED"<<endl;
  }
  else
  {
  cerr<<"CONNECTED"<<endl;
  }

As I saw in net-snmp code in case of success connection some callbacks are
registered. So, one of way to check success connection is checking
for SNMPD_CALLBACK_REGISTER_OID. I do not think is a right way because this
call back can be set in other places of code of next net-snmp library
releases or it now can be set in other ones.

Thanks in advance.
2009/1/26 Nikos Balkanas <[email protected]>

>  Try:
>
> snmpd -f -Le -Dagentx
>
> BR,
> Nikos
>
> ----- Original Message -----
> *From:* Alexander Bubnov <[email protected]>
> *To:* [email protected]
> *Sent:* Monday, January 26, 2009 4:35 PM
> *Subject:* How to know subagent successfully connects to master agent or
> not?
>
> Hello!
>
> I am playing around with NET-SNMP library... and just what to know subj.
>
> My code looks like the tutorial one (see section TUT:Writing a Subagent,
> http://www.net-snmp.org/wiki/index.php/TUT:Writing_a_Subagent):
>
> int main() {
>
> ...
>  netsnmp_ds_set_boolean(NETSNMP_DS_APPLICATION_ID, NETSNMP_DS_AGENT_ROLE,
> TRUE);
>  netsnmp_ds_set_boolean(NETSNMP_DS_LIBRARY_ID,
> NETSNMP_DS_LIB_DONT_PERSIST_STATE, TRUE);
>  netsnmp_ds_set_int(NETSNMP_DS_APPLICATION_ID,
> NETSNMP_DS_AGENT_AGENTX_PING_INTERVAL, 100);
>
>  netsnmp_ds_set_string(NETSNMP_DS_APPLICATION_ID,
> NETSNMP_DS_AGENT_X_SOCKET, "udp:192.168.89.130:705");
>
>  init_agent("event_example");
>  init_snmp("event_example");
>
> ...
>
> return EXIT_SUCCESS;
>
> }
>
> inside call of init_snmp, subagent tries to connect to master agent. Here
> connection can be fail.
>
> What right way to know about that fail?
>
> Thanks in advance!
> --
> /BR, Alexander
>
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-- 
/BR, Alexander

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