// with mode 0o777 mkdir honors system umask.
	mkdirAll(pathutil.Dir(filePath), 0o777, s.drivePath) // don't need to fail here

	w, err := s.openFileDirect(filePath, os.O_CREATE|os.O_WRONLY|os.O_EXCL)
	if err != nil {
		return err
	}
	_, err = w.Write(alignedBuf)
	w.Close()
	if err != nil {
		if isSysErrInvalidArg(err) {
			err = errUnsupportedDisk
		}
	}
	return err
}

	O_SEARCH                      = 0x200000
	O_SIOCGIFCONF                 = -0x3ff796ec
	O_SIOCGLIFCONF                = -0x3fef9688
	O_SYNC                        = 0x10
	O_TRUNC                       = 0x200
	O_WRONLY                      = 0x1
	O_XATTR                       = 0x4000
	PARENB                        = 0x100
	PAREXT                        = 0x100000
	PARMRK                        = 0x8

	}
	pathp, err := UTF16PtrFromString(path)
	if err != nil {
		return InvalidHandle, err
	}
	var access uint32
	switch mode & (O_RDONLY | O_WRONLY | O_RDWR) {
	case O_RDONLY:
		access = GENERIC_READ
	case O_WRONLY:
		access = GENERIC_WRITE
	case O_RDWR:
		access = GENERIC_READ | GENERIC_WRITE
	}
	if mode&O_CREAT != 0 {
		access |= GENERIC_WRITE
	}
	if mode&O_APPEND != 0 {

    }


    @Override
    public SmbFileOutputStream openOutputStream ( boolean append, int sharing ) throws SmbException {
        return openOutputStream(append, append ? O_CREAT | O_WRONLY | O_APPEND : O_CREAT | O_WRONLY | O_TRUNC, 0, sharing);
    }


    @Override
    public SmbFileOutputStream openOutputStream ( boolean append, int openFlags, int access, int sharing ) throws SmbException {

}

var openErrorTests = []openErrorTest{
	{
		sfdir + "/no-such-file",
		O_RDONLY,
		syscall.ENOENT,
	},
	{
		sfdir,
		O_WRONLY,
		syscall.EISDIR,
	},
	{
		sfdir + "/" + sfname + "/no-such-file",
		O_WRONLY,
		syscall.ENOTDIR,
	},
}

func TestOpenError(t *testing.T) {
	t.Parallel()

	for _, tt := range openErrorTests {

	}
	pathp, err := UTF16PtrFromString(path)
	if err != nil {
		return InvalidHandle, err
	}
	var access uint32
	switch mode & (O_RDONLY | O_WRONLY | O_RDWR) {
	case O_RDONLY:
		access = GENERIC_READ
	case O_WRONLY:
		access = GENERIC_WRITE
	case O_RDWR:
		access = GENERIC_READ | GENERIC_WRITE
	}
	if mode&O_CREAT != 0 {
		access |= GENERIC_WRITE
	}
	if mode&O_APPEND != 0 {

			// Otherwise, copy the bytes.
			src, err := os.Open(testExe)
			if err != nil {
				log.Fatal(err)
			}
			defer src.Close()

			dst, err := os.OpenFile(testGo, os.O_WRONLY|os.O_CREATE|os.O_EXCL, 0o777)
			if err != nil {
				log.Fatal(err)
			}

			_, err = io.Copy(dst, src)
			if closeErr := dst.Close(); err == nil {
				err = closeErr
			}
			if err != nil {

		if err := test.validate(connState); err != nil {
			t.Fatalf("validate callback returned error: %s", err)
		}
	}

	if write {
		path := test.dataPath()
		out, err := os.OpenFile(path, os.O_WRONLY|os.O_CREATE|os.O_TRUNC, 0644)
		if err != nil {
			t.Fatalf("Failed to create output file: %s", err)
		}
		defer out.Close()
		recordingConn.Close()
		if len(recordingConn.flows) < 3 {

		t.Fatal(err)
	}

	// 4) Streaming bitrot check on corrupted file
	filePath := pathJoin(storage.String(), volName, fileName)
	f, err := os.OpenFile(filePath, os.O_WRONLY|os.O_SYNC, 0o644)
	if err != nil {
		t.Fatal(err)
	}
	// Replace first 256 with 'a'.
	if _, err := f.WriteString(strings.Repeat("a", 256)); err != nil {
		t.Fatal(err)
	}
	f.Close()

			return nil
		}

		// Otherwise, copy the bytes.
		src, err := os.Open(srcPath)
		if err != nil {
			return err
		}
		defer src.Close()

		dst, err := os.OpenFile(dstPath, os.O_WRONLY|os.O_CREATE|os.O_EXCL, perm)
		if err != nil {
			return err
		}

		_, err = io.Copy(dst, src)
		if closeErr := dst.Close(); err == nil {
			err = closeErr
		}
		return err
	})
}