- int version, ret;
-
- version = call >> 16; /* hack for backward compatibility */
- call &= 0xffff;
- ret = -ENOSYS;
-
- switch (call) {
- case SEMOP:
- ret = sys_semtimedop (first, (struct sembuf __user *)ptr,
- second, NULL);
- break;
-
- case SEMTIMEDOP:
- ret = sys_semtimedop (first, (struct sembuf __user *)ptr,
- second, (const struct timespec *) fifth);
- break;
-
- case SEMGET:
- ret = sys_semget (first, second, third);
- break;
-
- case SEMCTL: {
- union semun fourth;
-
- if (ptr && !get_user(fourth.__pad, (void *__user *) ptr))
- ret = sys_semctl (first, second, third, fourth);
- break;
- }
-
- case MSGSND:
- ret = sys_msgsnd (first, (struct msgbuf __user*) ptr,
- second, third);
- break;
-
- case MSGRCV:
- switch (version) {
- case 0: {
- struct ipc_kludge tmp;
-
- if (ptr && !copy_from_user(&tmp,
- (struct ipc_kludge *) ptr,
- sizeof (tmp)))
- ret = sys_msgrcv (first, tmp.msgp, second,
- tmp.msgtyp, third);
- break;
- }
-
- default:
- ret = sys_msgrcv (first, (struct msgbuf __user *) ptr,
- second, 0, third);
- break;
- }
- break;
-
- case MSGGET:
- ret = sys_msgget ((key_t) first, second);
- break;
-
- case MSGCTL:
- ret = sys_msgctl (first, second, (struct msqid_ds __user*) ptr);
- break;
-
- case SHMAT: {
- ulong raddr;
- ret = do_shmat (first, (char __user *) ptr, second, &raddr);
-
- if (!ret)
- ret = put_user (raddr, (ulong __user *) third);
-
- break;
- }
-
- case SHMDT:
- ret = sys_shmdt ((char __user *)ptr);
- break;
-
- case SHMGET:
- ret = sys_shmget (first, second, third);
- break;
-
- case SHMCTL:
- ret = sys_shmctl (first, second, (struct shmid_ds __user*) ptr);
- break;
- }
- return ret;