The getsemcmwlabel(2) routine gets the semaphore set CMW label.
The semgetl(2) routine creates a semaphore set at the specified sensitivity label.
int getsemcmwlabel(int semid, bclabel_t *cmwlabel);
int semgetl(key_t key,
int nsems,
int semflg,
bslabel_t *senslabel);