vendor/golang.org/x/net/route/interface_multicast.go

   1 // Copyright 2016 The Go Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style
   3 // license that can be found in the LICENSE file.
   4
   5 // +build darwin dragonfly freebsd
   6
   7 package route
   8
   9 func (w *wireFormat) parseInterfaceMulticastAddrMessage(_ RIBType, b []byte) (Message, error) {
  10         if len(b) < w.bodyOff {
  11                 return nil, errMessageTooShort
  12         }
  13         l := int(nativeEndian.Uint16(b[:2]))
  14         if len(b) < l {
  15                 return nil, errInvalidMessage
  16         }
  17         m := &InterfaceMulticastAddrMessage{
  18                 Version: int(b[2]),
  19                 Type:    int(b[3]),
  20                 Flags:   int(nativeEndian.Uint32(b[8:12])),
  21                 Index:   int(nativeEndian.Uint16(b[12:14])),
  22                 raw:     b[:l],
  23         }
  24         var err error
  25         m.Addrs, err = parseAddrs(uint(nativeEndian.Uint32(b[4:8])), parseKernelInetAddr, b[w.bodyOff:])
  26         if err != nil {
  27                 return nil, err
  28         }
  29         return m, nil
  30 }