Add generic sys_ipc wrapper
[safe/jmp/linux-2.6] / arch / x86 / kernel / sys_i386_32.c
index 7955e90..8b5c348 100644 (file)
 #include <asm/syscalls.h>
 
 /*
- * sys_ipc() is the de-multiplexer for the SysV IPC calls..
- *
- * This is really horribly ugly.
- */
-asmlinkage int sys_ipc(uint call, int first, int second,
-                       int third, void __user *ptr, long fifth)
-{
-       int version, ret;
-
-       version = call >> 16; /* hack for backward compatibility */
-       call &= 0xffff;
-
-       switch (call) {
-       case SEMOP:
-               return sys_semtimedop(first, (struct sembuf __user *)ptr, second, NULL);
-       case SEMTIMEDOP:
-               return sys_semtimedop(first, (struct sembuf __user *)ptr, second,
-                                       (const struct timespec __user *)fifth);
-
-       case SEMGET:
-               return sys_semget(first, second, third);
-       case SEMCTL: {
-               union semun fourth;
-               if (!ptr)
-                       return -EINVAL;
-               if (get_user(fourth.__pad, (void __user * __user *) ptr))
-                       return -EFAULT;
-               return sys_semctl(first, second, third, fourth);
-       }
-
-       case MSGSND:
-               return sys_msgsnd(first, (struct msgbuf __user *) ptr,
-                                  second, third);
-       case MSGRCV:
-               switch (version) {
-               case 0: {
-                       struct ipc_kludge tmp;
-                       if (!ptr)
-                               return -EINVAL;
-
-                       if (copy_from_user(&tmp,
-                                          (struct ipc_kludge __user *) ptr,
-                                          sizeof(tmp)))
-                               return -EFAULT;
-                       return sys_msgrcv(first, tmp.msgp, second,
-                                          tmp.msgtyp, third);
-               }
-               default:
-                       return sys_msgrcv(first,
-                                          (struct msgbuf __user *) ptr,
-                                          second, fifth, third);
-               }
-       case MSGGET:
-               return sys_msgget((key_t) first, second);
-       case MSGCTL:
-               return sys_msgctl(first, second, (struct msqid_ds __user *) ptr);
-
-       case SHMAT:
-               switch (version) {
-               default: {
-                       ulong raddr;
-                       ret = do_shmat(first, (char __user *) ptr, second, &raddr);
-                       if (ret)
-                               return ret;
-                       return put_user(raddr, (ulong __user *) third);
-               }
-               case 1: /* iBCS2 emulator entry point */
-                       if (!segment_eq(get_fs(), get_ds()))
-                               return -EINVAL;
-                       /* The "(ulong *) third" is valid _only_ because of the kernel segment thing */
-                       return do_shmat(first, (char __user *) ptr, second, (ulong *) third);
-               }
-       case SHMDT:
-               return sys_shmdt((char __user *)ptr);
-       case SHMGET:
-               return sys_shmget(first, second, third);
-       case SHMCTL:
-               return sys_shmctl(first, second,
-                                  (struct shmid_ds __user *) ptr);
-       default:
-               return -ENOSYS;
-       }
-}
-
-/*
  * Old cruft
  */
 asmlinkage int sys_uname(struct old_utsname __user *name)