SmbNamedPipe t = new SmbNamedPipe(getFifoPipeUrl(), SmbPipeResource.PIPE_TYPE_RDONLY, withTestNTLMCredentials(getContext())) ) {
            try ( SmbPipeHandle sp = s.openPipe();
                  SmbPipeHandle tp = t.openPipe() ) {
                try ( OutputStream os = sp.getOutput() ) {
                    writeRandom(1024, 1024, os);
                }
                try ( InputStream is = tp.getInput() ) {

	}
	ofile, ok := file.(*openFile)
	if !ok {
		return nil, &fs.PathError{Op: "read", Path: name, Err: errors.New("is a directory")}
	}
	return []byte(ofile.f.data), nil
}

// An openFile is a regular file open for reading.
type openFile struct {
	f      *file // the file itself
	offset int64 // current read offset
}

var (
	_ io.Seeker   = (*openFile)(nil)
	_ io.ReaderAt = (*openFile)(nil)

	Trace("Open", path)
	return openFile(path, os.O_RDONLY, 0)
}

func openFile(path string, flag int, perm os.FileMode) (*os.File, error) {
	cpath := canonicalize(path)
	if node, ok := overlay[cpath]; ok {
		// Opening a file in the overlay.
		if node.isDir() {
			return nil, &fs.PathError{Op: "OpenFile", Path: path, Err: errors.New("fsys.OpenFile doesn't support opening directories yet")}
		}

		assertFunc  func(path string) error
	}{
		{
			description: "fsGroup=nil",
			fsGroup:     nil,
			setupFunc: func(path string) error {
				filename := filepath.Join(path, "file.txt")
				file, err := os.OpenFile(filename, os.O_RDWR|os.O_CREATE, 0755)
				if err != nil {
					return err
				}
				file.Close()
				return nil
			},
			assertFunc: func(path string) error {

	}
	defer inf.Close()

	fi, err := inf.Stat()
	if err != nil {
		fatal("accessing input meta-data file %s: %v", inpath, err)
	}

	outf, err := os.OpenFile(outpath, os.O_WRONLY|os.O_CREATE|os.O_TRUNC, fi.Mode())
	if err != nil {
		fatal("opening output meta-data file %s: %v", outpath, err)
	}

	_, err = io.Copy(outf, inf)
	outf.Close()
	if err != nil {

type newFileKind int

const (
	// kindNewFile means that the descriptor was passed to us via NewFile.
	kindNewFile newFileKind = iota
	// kindOpenFile means that the descriptor was opened using
	// Open, Create, or OpenFile.
	kindOpenFile
	// kindPipe means that the descriptor was opened using Pipe.
	kindPipe
	// kindSock means that the descriptor is a network file descriptor

// be used for I/O; the associated file descriptor has mode O_RDWR.
// If there is an error, it will be of type *PathError.
func Create(name string) (*File, error) {
	return OpenFile(name, O_RDWR|O_CREATE|O_TRUNC, 0666)
}

// OpenFile is the generalized open call; most users will use Open
// or Create instead. It opens the named file with specified flag
// (O_RDONLY etc.). If the file does not exist, and the O_CREATE flag

	}
	// We don't actually modify the original files; we create temporaries and
	// move them over the originals
	fProjects, err := os.OpenFile(projectsFile, os.O_RDONLY|os.O_CREATE, 0644)
	if err != nil {
		err = fmt.Errorf("unable to open %s: %v", projectsFile, err)
		return nil, nil, err
	}
	fProjid, err := os.OpenFile(projidFile, os.O_RDONLY|os.O_CREATE, 0644)
	if err == nil {
		// Check once more, to ensure nothing got changed out from under us

	} else if fd.IsDir() {
		// local/debug exists and is a directory. Set stderr to a log file path
		// in local/debug.
		childLogPath := filepath.Join(telemetry.Default.DebugDir(), "sidecar.log")
		childLog, err := os.OpenFile(childLogPath, os.O_WRONLY|os.O_CREATE|os.O_APPEND, 0600)
		if err != nil {
			log.Fatalf("opening sidecar log file for child: %v", err)
		}
		defer childLog.Close()
		cmd.Stderr = childLog
	}

					// and check if that disk
					// appears in outDatedDisks.
					tamperedIndex = index
					filePath := pathJoin(erasureDisks[index].String(), bucket, object, fi.DataDir, "part.1")
					f, err := os.OpenFile(filePath, os.O_WRONLY|os.O_SYNC, 0)
					if err != nil {
						t.Fatalf("Failed to open %s: %s\n", filePath, err)
					}
					f.WriteString("oops") // Will cause bitrot error
					f.Close()
					break
				}