return windows.SetFileInformationByHandle(fd.Sysfd, windows.FileBasicInfo, unsafe.Pointer(&du), uint32(unsafe.Sizeof(du)))
}

// Fchdir wraps syscall.Fchdir.
func (fd *FD) Fchdir() error {
	if err := fd.incref(); err != nil {
		return err
	}
	defer fd.decref()
	return syscall.Fchdir(fd.Sysfd)
}

// GetFileType wraps syscall.GetFileType.
func (fd *FD) GetFileType() (uint32, error) {

//sys	closedir(dir uintptr) (err error)
//sys	Dup(fd int) (nfd int, err error)
//sys	Dup2(from int, to int) (err error)
//sys	Exchangedata(path1 string, path2 string, options int) (err error)
//sys	Fchdir(fd int) (err error)
//sys	Fchflags(fd int, flags int) (err error)
//sys	Fchmod(fd int, mode uint32) (err error)
//sys	Fchown(fd int, uid int, gid int) (err error)
//sys	Flock(fd int, how int) (err error)

	n = copy(buf, cwd)
	return
}

func Chdir(path string) (err error) {
	if err := checkPath(path); err != nil {
		return err
	}
	defer recoverErr(&err)
	jsProcess.Call("chdir", path)
	return
}

func Fchdir(fd int) error {
	f, err := fdToFile(fd)
	if err != nil {
		return err
	}
	return Chdir(f.path)
}

func Readlink(path string, buf []byte) (n int, err error) {

//sys	Faccessat(dirfd int, path string, mode uint32, flags int) (err error)
//sys	Fadvise(fd int, offset int64, length int64, advice int) (err error) = SYS_POSIX_FADVISE
//sys	Fchdir(fd int) (err error)
//sys	Fchflags(fd int, flags int) (err error)
//sys	Fchmod(fd int, mode uint32) (err error)
//sys	Fchmodat(dirfd int, path string, mode uint32, flags int) (err error)

//sys	Close(fd int) (err error)
//sys	Dup(fd int) (nfd int, err error)
//sys	Dup2(from int, to int) (err error)
//sys	Exit(code int)
//sys	Faccessat(dirfd int, path string, mode uint32, flags int) (err error)
//sys	Fchdir(fd int) (err error)
//sys	Fchflags(fd int, flags int) (err error)
//sys	Fchmod(fd int, mode uint32) (err error)
//sys	Fchmodat(dirfd int, path string, mode uint32, flags int) (err error)

//sys	Dup2(from int, to int) (err error)
//sys	Dup3(from int, to int, flags int) (err error)
//sys	Exit(code int)
//sys	Faccessat(dirfd int, path string, mode uint32, flags int) (err error)
//sys	Fchdir(fd int) (err error)
//sys	Fchflags(fd int, flags int) (err error)
//sys	Fchmod(fd int, mode uint32) (err error)
//sys	Fchmodat(dirfd int, path string, mode uint32, flags int) (err error)

		dir = "/tmp"
	}
	return dir
}

// Chdir changes the current working directory to the file,
// which must be a directory.
// If there is an error, it will be of type *PathError.
func (f *File) Chdir() error {
	if err := f.incref("chdir"); err != nil {
		return err
	}
	defer f.decref()
	if e := syscall.Fchdir(f.fd); e != nil {
		return &PathError{Op: "chdir", Path: f.name, Err: e}
	}
	return nil
}

	if r0 == -1 && er != nil {
		err = er
	}
	return
}

// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT

func Fchdir(fd int) (err error) {
	r0, er := C.fchdir(C.int(fd))
	if r0 == -1 && er != nil {
		err = er
	}
	return
}

// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT

func Fchmod(fd int, mode uint32) (err error) {

	SYS_LINK                     = 9   // { int link(char *path, char *link); }
	SYS_UNLINK                   = 10  // { int unlink(char *path); }
	SYS_CHDIR                    = 12  // { int chdir(char *path); }
	SYS_FCHDIR                   = 13  // { int fchdir(int fd); }
	SYS_MKNOD                    = 14  // { int mknod(char *path, int mode, int dev); }
	SYS_CHMOD                    = 15  // { int chmod(char *path, int mode); }

	SYS_LINK                     = 9   // { int link(char *path, char *link); }
	SYS_UNLINK                   = 10  // { int unlink(char *path); }
	SYS_CHDIR                    = 12  // { int chdir(char *path); }
	SYS_FCHDIR                   = 13  // { int fchdir(int fd); }
	SYS_MKNOD                    = 14  // { int mknod(char *path, int mode, int dev); }
	SYS_CHMOD                    = 15  // { int chmod(char *path, int mode); }