n, err := fd.pfd.Writev((*[][]byte)(buf))
	runtime.KeepAlive(fd)
	return n, wrapSyscallError("wsasend", err)
}

func (fd *netFD) accept() (*netFD, error) {
	s, rawsa, rsan, errcall, err := fd.pfd.Accept(func() (syscall.Handle, error) {
		return sysSocket(fd.family, fd.sotype, 0)
	})

	if err != nil {
		if errcall != "" {
			err = wrapSyscallError(errcall, err)
		}

	pkgs := []string{
		"crypto",
		"encoding",
		"unsafe",
		"encoding/json",
		"runtime",
		"net",
	}
	var raws []*rawPackage
	for _, pkg := range pkgs {
		raw := importRaw(src, pkg)
		raws = append(raws, raw)
		t.Run(pkg, func(t *testing.T) {
			data := encodeModuleBytes([]*rawPackage{raw})
			m, err := fromBytes(src, data)
			if err != nil {
				t.Fatal(err)
			}