return n, r.err
		}
		if r.err != nil {
			return 0, r.err
		}
		outn := copy(r.outbuf, r.outbuf[r.lastBoundary:])
		r.outbuf = r.outbuf[0:outn]
		r.bufStart = 0

		n, err := r.r.Read(r.inbuf)
		r.rb.src = inputBytes(r.inbuf[0:n])
		r.rb.nsrc, r.err = n, err
		if n > 0 {
			r.outbuf = doAppend(&r.rb, r.outbuf, 0)
		}
		if err == io.EOF {
			r.lastBoundary = len(r.outbuf)
		} else {

import "syscall"

// WSAIoctl wraps the WSAIoctl network call.
func (fd *FD) WSAIoctl(iocc uint32, inbuf *byte, cbif uint32, outbuf *byte, cbob uint32, cbbr *uint32, overlapped *syscall.Overlapped, completionRoutine uintptr) error {
	if err := fd.incref(); err != nil {
		return err
	}
	defer fd.decref()
	return syscall.WSAIoctl(fd.Sysfd, iocc, inbuf, cbif, outbuf, cbob, cbbr, overlapped, completionRoutine)

			return n, r.err
		}
		if r.err != nil {
			return 0, r.err
		}
		outn := copy(r.outbuf, r.outbuf[r.lastBoundary:])
		r.outbuf = r.outbuf[0:outn]
		r.bufStart = 0

		n, err := r.r.Read(r.inbuf)
		r.rb.src = inputBytes(r.inbuf[0:n])
		r.rb.nsrc, r.err = n, err
		if n > 0 {
			r.outbuf = doAppend(&r.rb, r.outbuf, 0)
		}
		if err == io.EOF {
			r.lastBoundary = len(r.outbuf)
		} else {

	if ov.HEvent == 0 {
		t.Fatalf("could not create the event!")
	}
	defer syscall.CloseHandle(ov.HEvent)

	if err = fd.WSAIoctl(
		SIO_TCP_INFO,
		(*byte)(unsafe.Pointer(&inbuf)),
		uint32(unsafe.Sizeof(inbuf)),
		(*byte)(unsafe.Pointer(&outbuf)),
		uint32(unsafe.Sizeof(outbuf)),
		&cbbr,
		&ov,
		0,
	); err != nil && !errors.Is(err, syscall.ERROR_IO_PENDING) {