// Copyright 2011 The Go Authors. All rights reserved. // Use of this source code is governed by a BSD-style // license that can be found in the LICENSE file. package syscall import "unsafe" func (any *anyMessage) toRoutingMessage(b []byte) RoutingMessage { switch any.Type { case RTM_ADD, RTM_DELETE, RTM_CHANGE, RTM_GET, RTM_LOSING, RTM_REDIRECT, RTM_MISS, RTM_LOCK, RTM_RESOLVE: p := (*RouteMessage)(unsafe.Pointer(any)) return &RouteMessage{Header: p.Header, Data: b[SizeofRtMsghdr:any.Msglen]} case RTM_IFINFO: p := (*InterfaceMessage)(unsafe.Pointer(any)) return &InterfaceMessage{Header: p.Header, Data: b[SizeofIfMsghdr:any.Msglen]} case RTM_NEWADDR, RTM_DELADDR: p := (*InterfaceAddrMessage)(unsafe.Pointer(any)) return &InterfaceAddrMessage{Header: p.Header, Data: b[SizeofIfaMsghdr:any.Msglen]} case RTM_NEWMADDR2, RTM_DELMADDR: p := (*InterfaceMulticastAddrMessage)(unsafe.Pointer(any)) return &InterfaceMulticastAddrMessage{Header: p.Header, Data: b[SizeofIfmaMsghdr2:any.Msglen]} } return nil } // InterfaceMulticastAddrMessage represents a routing message // containing network interface address entries. // // Deprecated: Use golang.org/x/net/route instead. type InterfaceMulticastAddrMessage struct { Header IfmaMsghdr2 Data []byte } func (m *InterfaceMulticastAddrMessage) sockaddr() ([]Sockaddr, error) { var sas [RTAX_MAX]Sockaddr b := m.Data[:] for i := uint(0); i < RTAX_MAX && len(b) >= minRoutingSockaddrLen; i++ { if m.Header.Addrs&(1<