package p1

type SockaddrUnix int

package p2

import "./p1"

	if s, ok := sa.(*syscall.SockaddrUnix); ok {
		return &UnixAddr{Name: s.Name, Net: "unix"}
	}
	return nil
}

func sockaddrToUnixgram(sa syscall.Sockaddr) Addr {
	if s, ok := sa.(*syscall.SockaddrUnix); ok {
		return &UnixAddr{Name: s.Name, Net: "unixgram"}
	}
	return nil
}

func sockaddrToUnixpacket(sa syscall.Sockaddr) Addr {
	if s, ok := sa.(*syscall.SockaddrUnix); ok {

)

type Sockaddr any

type SockaddrInet4 struct {
	Port int
	Addr [4]byte
}

type SockaddrInet6 struct {
	Port   int
	ZoneId uint32
	Addr   [16]byte
}

type SockaddrUnix struct {
	Name string

	go func() {
		defer func() { off <- true }()
		s, err := syscall.Socket(syscall.AF_UNIX, syscall.SOCK_DGRAM, 0)
		if err != nil {
			t.Error(err)
			return
		}
		defer syscall.Close(s)
		rsa := &syscall.SockaddrUnix{Name: addr}
		if err := syscall.Sendto(s, data[:], 0, rsa); err != nil {
			t.Error(err)
			return
		}
	}()

	<-off
	b := make([]byte, 64)
	c.SetReadDeadline(time.Now().Add(100 * time.Millisecond))

	rsa, _ := syscall.Getpeername(s)
	switch lsa.(type) {
	case *syscall.SockaddrInet4:
		family = syscall.AF_INET
	case *syscall.SockaddrInet6:
		family = syscall.AF_INET6
	case *syscall.SockaddrUnix:
		family = syscall.AF_UNIX
	default:
		poll.CloseFunc(s)
		return nil, syscall.EPROTONOSUPPORT
	}
	fd, err := newFD(s, family, sotype, "")
	if err != nil {
		poll.CloseFunc(s)
		return nil, err
	}

	p[0] = byte(sa.Port >> 8)
	p[1] = byte(sa.Port)
	sa.raw.Scope_id = sa.ZoneId
	sa.raw.Addr = sa.Addr
	return unsafe.Pointer(&sa.raw), _Socklen(sa.raw.Len), nil
}

func (sa *SockaddrUnix) sockaddr() (unsafe.Pointer, _Socklen, error) {
	name := sa.Name
	n := len(name)
	if n >= len(sa.raw.Path) || n == 0 {
		return nil, 0, EINVAL
	}
	sa.raw.Len = byte(3 + n) // 2 for Family, Len; 1 for NUL

	p[0] = byte(sa.Port >> 8)
	p[1] = byte(sa.Port)
	sa.raw.Scope_id = sa.ZoneId
	sa.raw.Addr = sa.Addr
	return unsafe.Pointer(&sa.raw), _Socklen(sa.raw.Len), nil
}

func (sa *SockaddrUnix) sockaddr() (unsafe.Pointer, _Socklen, error) {
	name := sa.Name
	n := len(name)
	if n >= len(sa.raw.Path) || n == 0 {
		return nil, 0, EINVAL
	}
	sa.raw.Len = byte(3 + n) // 2 for Family, Len; 1 for NUL

	sa.raw.Addr = sa.Addr
	return unsafe.Pointer(&sa.raw), SizeofSockaddrInet6, nil
}

func (sa *RawSockaddrUnix) setLen(n int) {
	sa.Len = uint8(3 + n) // 2 for Family, Len; 1 for NUL.
}

func (sa *SockaddrUnix) sockaddr() (unsafe.Pointer, _Socklen, error) {
	name := sa.Name
	n := len(name)
	if n > len(sa.raw.Path) {
		return nil, 0, EINVAL
	}
	sa.raw.Family = AF_UNIX
	sa.raw.setLen(n)

type SockaddrInet6 struct {
	Port   int
	ZoneId uint32
	Addr   [16]byte
	raw    RawSockaddrInet6
}

// SockaddrUnix implements the Sockaddr interface for AF_UNIX type sockets.
type SockaddrUnix struct {
	Name string
	raw  RawSockaddrUnix
}

func Bind(fd int, sa Sockaddr) (err error) {
	ptr, n, err := sa.sockaddr()
	if err != nil {
		return err
	}