status-go/vendor/github.com/marten-seemann/tcp/sys.go

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2021-10-19 13:43:41 +00:00
// Copyright 2016 Mikio Hara. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package tcp
import (
"encoding/binary"
"unsafe"
)
var nativeEndian binary.ByteOrder
func init() {
i := uint32(1)
b := (*[4]byte)(unsafe.Pointer(&i))
if b[0] == 1 {
nativeEndian = binary.LittleEndian
} else {
nativeEndian = binary.BigEndian
}
}
const (
ianaProtocolIP = 0x0
ianaProtocolTCP = 0x6
ianaProtocolIPv6 = 0x29
)
const (
soBuffered = iota
soAvailable
soMax
)
type option struct {
level int // option level
name int // option name, must be equal or greater than 1
}