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path: root/libgo/go/syscall/route_netbsd.go
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// 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.

// Routing sockets and messages for NetBSD

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_IFANNOUNCE:
		p := (*InterfaceAnnounceMessage)(unsafe.Pointer(any))
		return &InterfaceAnnounceMessage{Header: p.Header}
	case RTM_NEWADDR, RTM_DELADDR:
		p := (*InterfaceAddrMessage)(unsafe.Pointer(any))
		return &InterfaceAddrMessage{Header: p.Header, Data: b[SizeofIfaMsghdr:any.Msglen]}
	}
	return nil
}

// InterfaceAnnounceMessage represents a routing message containing
// network interface arrival and departure information.
type InterfaceAnnounceMessage struct {
	Header IfAnnounceMsghdr
}

func (m *InterfaceAnnounceMessage) sockaddr() (sas []Sockaddr) { return nil }