go interface_announce 源码
golang interface_announce 代码
文件路径：/src/vendor/golang.org/x/net/route/interface_announce.go
// 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.
//go:build dragonfly || freebsd || netbsd
// +build dragonfly freebsd netbsd
package route
func (w *wireFormat) parseInterfaceAnnounceMessage(_ 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 := &InterfaceAnnounceMessage{
Version: int(b[2]),
Type: int(b[3]),
Index: int(nativeEndian.Uint16(b[4:6])),
What: int(nativeEndian.Uint16(b[22:24])),
raw: b[:l],
}
for i := 0; i < 16; i++ {
if b[6+i] != 0 {
continue
}
m.Name = string(b[6 : 6+i])
break
}
return m, nil
}
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