snmp_add_null_var  754 ext/snmp/snmp.c 			snmp_add_null_var(pdu, objid_query->vars[0].name, objid_query->vars[0].name_length);
snmp_add_null_var  779 ext/snmp/snmp.c 					snmp_add_null_var(pdu, objid_query->vars[objid_query->offset].name, objid_query->vars[objid_query->offset].name_length);