Re: problems with read_objid

On 09/01/2008, Carlos Rubio <kadabrachile@gmail.com> wrote:
> pdu = snmp_pdu_create(SNMP_MSG_GET);
> read_objid(".1.3.6.1.2.1.33.1.1.1.0", anOID, &anOID_len);
> snmp_add_null_var(pdu, anOID, anOID_len);

> read_objid(".1.3.6.1.2.1.33.1.1.2.0", anOID, &anOID_len);
> snmp_add_null_var(pdu, anOID, anOID_len);


At this point, the variable 'anOID_len' contains the length of
the previous two OIDs (which happen to be the same length).
You need to reset the value of 'anOID_len' to be the full size
of the 'anOID' buffer before each call to 'read_objid'

> read_objid("1.3.6.1.2.1.33.1.3.3.1.2.1", anOID, &anOID_len);
> snmp_add_null_var(pdu, anOID, anOID_len);

This OID doesn't fit into the apparent size of the buffer that
you're providing. So the 'read_objid' call fails.
If you were checking your return codes, you'd have
spotted this :-)

Dave

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