text: // Copyright 2016 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.
  
  // +build darwin dragonfly freebsd netbsd
  
  package route
  
  func (w *wireFormat) parseRouteMessage(typ RIBType, b []byte) (Message, error) {
  	if len(b) < w.bodyOff {
  		return nil, errMessageTooShort
  	}
  	l := int(nativeEndian.Uint16(b[:2]))
  	if len(b) < l {
  		return nil, errInvalidMessage
  	}
  	m := &RouteMessage{
  		Version: int(b[2]),
  		Type:    int(b[3]),
  		Flags:   int(nativeEndian.Uint32(b[8:12])),
  		Index:   int(nativeEndian.Uint16(b[4:6])),
  		extOff:  w.extOff,
  		raw:     b[:l],
  	}
  	var err error
  	m.Addrs, err = parseAddrs(uint(nativeEndian.Uint32(b[12:16])), parseKernelInetAddr, b[w.bodyOff:])
  	if err != nil {
  		return nil, err
  	}
  	return m, nil
  }
  