// adds /name to the beginning of dir.
	dir = ""
	for parent := ".."; ; parent = "../" + parent {
		if len(parent) >= 1024 { // Sanity check
			return "", syscall.ENAMETOOLONG
		}
		fd, err := openFileNolog(parent, O_RDONLY, 0)
		if err != nil {
			return "", err
		}

		for {
			names, err := fd.Readdirnames(100)
			if err != nil {
				fd.Close()
				return "", err
			}
			for _, name := range names {

			return osErrToFileErr(err)
		}
		// There may be permission error when dirPath
		// is at the root of the disk mount that may
		// not have the permissions to avoid 'noatime'
		fd, err = openFileWithFD(dirPath, os.O_RDONLY, 0o666)
		if err != nil {
			if osErrToFileErr(err) == errFileNotFound {
				return nil
			}
			return osErrToFileErr(err)
		}

	}
	defer syscall.Close(fd)

	// file at mu.Path is write-only, the call to OpenFile will fail with a
	// permission error. That's actually what we want: if we add an RLock method
	// in the future, it should call OpenFile with O_RDONLY and will require the
	// files must be readable, so we should not let the caller make any
	// assumptions about Mutex working with write-only files.
	f, err := OpenFile(mu.Path, os.O_RDWR|os.O_CREATE, 0666)
	if err != nil {

	}, nil
}

// RLockedOpenFile - returns a wrapped read locked file, if the file
// doesn't exist at path returns an error.
func RLockedOpenFile(path string) (*RLockedFile, error) {
	lkFile, err := LockedOpenFile(path, os.O_RDONLY, 0o666)
	if err != nil {
		return nil, err
	}

	return newRLockedFile(lkFile)
}

// LockedFile represents a locked file
type LockedFile struct {
	*os.File

}

// Implemented in assembly to import from runtime.
func exit(code int)

func Exit(code int) { exit(code) }

func readnum(path string) (uint, error) {
	var b [12]byte

	fd, e := Open(path, O_RDONLY)
	if e != nil {
		return 0, e
	}
	defer Close(fd)

	n, e := Pread(fd, b[:], 0)

	if e != nil {
		return 0, e
	}

	m := 0
	for ; m < n && b[m] == ' '; m++ {
	}

)

// Flags to OpenFile wrapping those of the underlying system. Not all
// flags may be implemented on a given system.
const (
	// Exactly one of O_RDONLY, O_WRONLY, or O_RDWR must be specified.
	O_RDONLY int = syscall.O_RDONLY // open the file read-only.
	O_WRONLY int = syscall.O_WRONLY // open the file write-only.
	O_RDWR   int = syscall.O_RDWR   // open the file read-write.

	buf[len(buf)-1] = 0
	return cstring(buf[:])
}

func readnum(path string) (uint, error) {
	var b [12]byte

	fd, e := Open(path, O_RDONLY)
	if e != nil {
		return 0, e
	}
	defer Close(fd)

	n, e := Pread(fd, b[:], 0)

	if e != nil {
		return 0, e
	}

	m := 0
	for ; m < n && b[m] == ' '; m++ {
	}

			"	godoc -http=:6060\n")
	flag.PrintDefaults()
	os.Exit(2)
}

func TestReader(t *testing.T) {
testLoop:
	for i, test := range untarTests {
		f, err := os.Open(test.file, os.O_RDONLY, 0444)
		if err != nil {
			t.Errorf("test %d: Unexpected error: %v", i, err)
			continue
		}
		tr := NewReader(f)
		for j, header := range test.headers {
			hdr, err := tr.Next()

                log.warn("Server side copy failed", e);
                throw SmbException.wrap(e);
            }
        }

        try ( SmbFileHandleImpl sfd = src.openUnshared(0, SmbConstants.O_RDONLY, SmbConstants.FILE_SHARE_READ, SmbConstants.ATTR_NORMAL, 0);
              SmbFileInputStream fis = new SmbFileInputStream(src, sh, sfd) ) {
            int attrs = src.getAttributes();

     */
    @SuppressWarnings ( "resource" )
    public SmbFileInputStream ( String url, CIFSContext tc ) throws SmbException, MalformedURLException {
        this(new SmbFile(url, tc), 0, SmbConstants.O_RDONLY, SmbConstants.DEFAULT_SHARING, true);
    }


    /**
     * Creates an {@link java.io.InputStream} for reading bytes from a file on
     * an SMB server represented by the {@link jcifs.smb.SmbFile} parameter. See