/** Local function which responds with either the requested object name * or object ID, if the Device has a match. * @param data [in] The decoded who-has payload from the request. */ static void match_name_or_object( BACNET_WHO_HAS_DATA * data) { int object_type = 0; uint32_t object_instance = 0; bool found = false; BACNET_CHARACTER_STRING object_name; /* do we have such an object? If so, send an I-Have. note: we should have only 1 of such an object */ if (data->is_object_name) { /* valid name in my device? */ found = Device_Valid_Object_Name(&data->object.name, &object_type, &object_instance); if (found) { Send_I_Have(Device_Object_Instance_Number(), (BACNET_OBJECT_TYPE) object_type, object_instance, &data->object.name); } } else { /* valid object_name copy in my device? */ found = Device_Object_Name_Copy((BACNET_OBJECT_TYPE) data-> object.identifier.type, data->object.identifier.instance, &object_name); if (found) { Send_I_Have(Device_Object_Instance_Number(), (BACNET_OBJECT_TYPE) data->object.identifier.type, data->object.identifier.instance, &object_name); } } }
void handler_who_has( uint8_t * service_request, uint16_t service_len, BACNET_ADDRESS * src) { int len = 0; BACNET_WHO_HAS_DATA data; bool directed_to_me = false; int object_type = 0; uint32_t object_instance = 0; char *object_name = NULL; bool found = false; (void) src; len = whohas_decode_service_request(service_request, service_len, &data); if (len > 0) { if ((data.low_limit == -1) || (data.high_limit == -1)) directed_to_me = true; else if ((Device_Object_Instance_Number() >= (uint32_t) data.low_limit) && (Device_Object_Instance_Number() <= (uint32_t) data.high_limit)) directed_to_me = true; if (directed_to_me) { /* do we have such an object? If so, send an I-Have. note: we should have only 1 of such an object */ if (data.object_name) { /* valid name in my device? */ object_name = characterstring_value(&data.object.name); found = Device_Valid_Object_Name(object_name, &object_type, &object_instance); if (found) Send_I_Have(Device_Object_Instance_Number(), object_type, object_instance, object_name); } else { /* valid object in my device? */ object_name = Device_Valid_Object_Id(data.object.identifier.type, data.object.identifier.instance); if (object_name) Send_I_Have(Device_Object_Instance_Number(), data.object.identifier.type, data.object.identifier.instance, object_name); } } } return; }