❦ 31 juillet 2020 17:51 +02, He Da-Luo:
> I'm developing an agent using the library Net-SNMP agent. Most of it works
> fine but the requests from "snmptable" (bulk requests).
> When the Net-SNMP agent gets a "get next request"(snmpwalk) that reaches
> the end of a column or my table, my handler returns "null". Net-SNMP agent
> responds with a next oid which belongs to another part of the tree and
> snmpwalk stops its requests.
> But when the Net-SNMP agent gets a "bulk request"(snmptable), it does not
> stop at the end of my table. It keeps going down the tree, calling my other
> handlers for other tables.
> So my question is : How is it supposed to end ? I read about 'End of MIB
> exception' but I don't really know how to raise that and I don't really
> reach the end of the MIB just the end of that table.
A GETBULK call is not expected to end at the boundary of a table. There
is no way for the agent to know if the caller is snmptable or snmpwalk.
The manager is expected to throw away the part it doesn't use.
--
Identify bad input; recover if possible.
- The Elements of Programming Style (Kernighan & Plauger)
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