interface_announce.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  //go:build dragonfly || freebsd || netbsd
     6  // +build dragonfly freebsd netbsd
     7  
     8  package route
     9  
    10  func (w *wireFormat) parseInterfaceAnnounceMessage(_ RIBType, b []byte) (Message, error) {
    11  	if len(b) < w.bodyOff {
    12  		return nil, errMessageTooShort
    13  	}
    14  	l := int(nativeEndian.Uint16(b[:2]))
    15  	if len(b) < l {
    16  		return nil, errInvalidMessage
    17  	}
    18  	m := &InterfaceAnnounceMessage{
    19  		Version: int(b[2]),
    20  		Type:    int(b[3]),
    21  		Index:   int(nativeEndian.Uint16(b[4:6])),
    22  		What:    int(nativeEndian.Uint16(b[22:24])),
    23  		raw:     b[:l],
    24  	}
    25  	for i := 0; i < 16; i++ {
    26  		if b[6+i] != 0 {
    27  			continue
    28  		}
    29  		m.Name = string(b[6 : 6+i])
    30  		break
    31  	}
    32  	return m, nil
    33  }
    34
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