}
}

func typeString(sotype int) string {
	var s string
	switch sotype & 0xff {
	case syscall.SOCK_STREAM:
		s = "stream"
	case syscall.SOCK_DGRAM:
		s = "datagram"
	case syscall.SOCK_RAW:
		s = "raw"
	case syscall.SOCK_SEQPACKET:
		s = "seqpacket"
	default:
		s = fmt.Sprintf("%d", sotype&0xff)
	}
	if flags := uint(sotype) & ^uint(0xff); flags != 0 {
		s += fmt.Sprintf("|%#x", flags)
	}

	switch fd.family {
	case syscall.AF_INET, syscall.AF_INET6:
		switch fd.sotype {
		case syscall.SOCK_STREAM:
			return sockaddrToTCP
		case syscall.SOCK_DGRAM:
			return sockaddrToUDP
		case syscall.SOCK_RAW:
			return sockaddrToIP
		}
	case syscall.AF_UNIX:
		switch fd.sotype {
		case syscall.SOCK_STREAM:
			return sockaddrToUnix
		case syscall.SOCK_DGRAM:
			return sockaddrToUnixgram

func LsfSocket(ifindex, proto int) (int, error) {
	var lsall SockaddrLinklayer
	// This is missing SOCK_CLOEXEC, but adding the flag
	// could break callers.
	s, e := Socket(AF_PACKET, SOCK_RAW, proto)
	if e != nil {
		return 0, e
	}
	p := (*[2]byte)(unsafe.Pointer(&lsall.Protocol))
	p[0] = byte(proto >> 8)
	p[1] = byte(proto)
	lsall.Ifindex = ifindex
	e = Bind(s, &lsall)
	if e != nil {

}}

// NetlinkRIB returns routing information base, as known as RIB, which
// consists of network facility information, states and parameters.
func NetlinkRIB(proto, family int) ([]byte, error) {
	s, err := Socket(AF_NETLINK, SOCK_RAW|SOCK_CLOEXEC, NETLINK_ROUTE)
	if err != nil {
		return nil, err
	}
	defer Close(s)
	sa := &SockaddrNetlink{Family: AF_NETLINK}
	if err := Bind(s, sa); err != nil {
		return nil, err
	}

	ret := &netFD{
		pfd: poll.FD{
			Sysfd:         sysfd,
			IsStream:      sotype == syscall.SOCK_STREAM,
			ZeroReadIsEOF: sotype != syscall.SOCK_DGRAM && sotype != syscall.SOCK_RAW,
		},
		family: family,
		sotype: sotype,
		net:    net,
	}
	return ret, nil
}

func (fd *netFD) init() error {
	return fd.pfd.Init(fd.net, true)
}

func (fd *netFD) name() string {

	ret := &netFD{
		pfd: poll.FD{
			Sysfd:         sysfd,
			IsStream:      sotype == syscall.SOCK_STREAM,
			ZeroReadIsEOF: sotype != syscall.SOCK_DGRAM && sotype != syscall.SOCK_RAW,
		},
		family: family,
		sotype: sotype,
		net:    net,
	}
	return ret, nil
}

func (fd *netFD) init() error {
	errcall, err := fd.pfd.Init(fd.net, true)
	if errcall != "" {

	DaylightBias int32
}

// Socket related.

const (
	AF_UNSPEC  = 0
	AF_UNIX    = 1
	AF_INET    = 2
	AF_INET6   = 23
	AF_NETBIOS = 17

	SOCK_STREAM    = 1
	SOCK_DGRAM     = 2
	SOCK_RAW       = 3
	SOCK_SEQPACKET = 5

	IPPROTO_IP   = 0
	IPPROTO_IPV6 = 0x29
	IPPROTO_TCP  = 6
	IPPROTO_UDP  = 17

	SOL_SOCKET                = 0xffff
	SO_REUSEADDR              = 4

	SHUT_WR                         = 1
	SOCK_CLOEXEC                    = 0x00001000
	SOCK_CONN_DGRAM                 = 6
	SOCK_DGRAM                      = 2
	SOCK_NONBLOCK                   = 0x800
	SOCK_RAW                        = 3
	SOCK_RDM                        = 4
	SOCK_SEQPACKET                  = 5
	SOCK_STREAM                     = 1
	SOL_SOCKET                      = 0xffff
	SOMAXCONN                       = 10

	SIOCSLOWAT                        = 0x80047302
	SIOCSPGRP                         = 0x80047308
	SOCK_DGRAM                        = 0x2
	SOCK_MAXADDRLEN                   = 0xff
	SOCK_RAW                          = 0x3
	SOCK_RDM                          = 0x4
	SOCK_SEQPACKET                    = 0x5
	SOCK_STREAM                       = 0x1
	SOL_SOCKET                        = 0xffff

	SIOCSNETOPT                   = -0x7ffe96a6
	SIOCSPGRP                     = 0xffffffff80047308
	SIOCSX25XLATE                 = -0x7fd7969d
	SOCK_CONN_DGRAM               = 0x6
	SOCK_DGRAM                    = 0x2
	SOCK_RAW                      = 0x3
	SOCK_RDM                      = 0x4
	SOCK_SEQPACKET                = 0x5
	SOCK_STREAM                   = 0x1
	SOL_SOCKET                    = 0xffff
	SOMAXCONN                     = 0x400