mirror of
https://github.com/golang/net.git
synced 2026-03-31 10:27:08 +09:00
d23d9bc549
Done with: go get go@1.18 go mod tidy go fix ./... Using go1.21.3. With a manual change to keep golang.org/x/net/context testing itself, not context in the standard library. For golang/go#60268. Change-Id: I00682bf7cf1e3ba4370e2a3e7f63dc245b294a36 Reviewed-on: https://go-review.googlesource.com/c/net/+/534241 LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com> Reviewed-by: Dmitri Shuralyov <dmitshur@google.com> Reviewed-by: Damien Neil <dneil@google.com> Auto-Submit: Dmitri Shuralyov <dmitshur@golang.org>
46 lines
940 B
Go
46 lines
940 B
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 darwin || dragonfly || freebsd || netbsd || openbsd
|
|
|
|
package route
|
|
|
|
import (
|
|
"syscall"
|
|
"unsafe"
|
|
)
|
|
|
|
var (
|
|
nativeEndian binaryByteOrder
|
|
kernelAlign int
|
|
rtmVersion byte
|
|
wireFormats map[int]*wireFormat
|
|
)
|
|
|
|
func init() {
|
|
i := uint32(1)
|
|
b := (*[4]byte)(unsafe.Pointer(&i))
|
|
if b[0] == 1 {
|
|
nativeEndian = littleEndian
|
|
} else {
|
|
nativeEndian = bigEndian
|
|
}
|
|
// might get overridden in probeRoutingStack
|
|
rtmVersion = syscall.RTM_VERSION
|
|
kernelAlign, wireFormats = probeRoutingStack()
|
|
}
|
|
|
|
func roundup(l int) int {
|
|
if l == 0 {
|
|
return kernelAlign
|
|
}
|
|
return (l + kernelAlign - 1) &^ (kernelAlign - 1)
|
|
}
|
|
|
|
type wireFormat struct {
|
|
extOff int // offset of header extension
|
|
bodyOff int // offset of message body
|
|
parse func(RIBType, []byte) (Message, error)
|
|
}
|