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34 lines
639 B
Go
34 lines
639 B
Go
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// Copyright 2017 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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package socket
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import (
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"encoding/binary"
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"unsafe"
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)
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var (
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// NativeEndian is the machine native endian implementation of
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// ByteOrder.
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NativeEndian binary.ByteOrder
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kernelAlign int
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)
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func init() {
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i := uint32(1)
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b := (*[4]byte)(unsafe.Pointer(&i))
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if b[0] == 1 {
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NativeEndian = binary.LittleEndian
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} else {
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NativeEndian = binary.BigEndian
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}
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kernelAlign = probeProtocolStack()
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}
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func roundup(l int) int {
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return (l + kernelAlign - 1) & ^(kernelAlign - 1)
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}
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