class MntSrv (rfc1094.MOUNTPROG_1, HostAccessControl):
    """See RFC1094."""
    deliberately_unimplemented = ['MOUNTPROC_EXPORT', 'MOUNTPROC_UMNTALL',
                     'MOUNTPROC_UMNT', 'MOUNTPROC_DUMP']
    def __init__ (self, fs):
        self.fs = fs
        rfc1094.MOUNTPROG_1.__init__ (self)
    def MOUNTPROC_NULL (self):
        return None
    
    def MOUNTPROC_MNT (self, dirpath):
        ret = rfc1094.fhstatus ()
        fh = self.fs.mount (dirpath)
        if fh == None:
            ret.status = rfc1094.NFSERR_NOENT
        else:
            ret.status = rfc1094.NFS_OK
            ret._data = fh
       return ret