#define FLAG_TOP_DIR (1<<0)
#define FLAG_HLINK_EOL (1<<1) /* generator only */
#define FLAG_MOUNT_POINT (1<<2) /* sender only */
#define FLAG_TOP_DIR (1<<0)
#define FLAG_HLINK_EOL (1<<1) /* generator only */
#define FLAG_MOUNT_POINT (1<<2) /* sender only */