1struct semid_ds {
 2	struct ipc_perm sem_perm;
 3	unsigned long __sem_otime_lo;
 4	unsigned long __sem_ctime_lo;
 5#if __BYTE_ORDER == __LITTLE_ENDIAN
 6	unsigned short sem_nsems;
 7	char __sem_nsems_pad[sizeof(long)-sizeof(short)];
 8#else
 9	char __sem_nsems_pad[sizeof(long)-sizeof(short)];
10	unsigned short sem_nsems;
11#endif
12	unsigned long __sem_otime_hi;
13	unsigned long __sem_ctime_hi;
14	time_t sem_otime;
15	time_t sem_ctime;
16};