1  /* Old SysV permission definition for Linux.  Default version.
       2     Copyright (C) 1995-2023 Free Software Foundation, Inc.
       3     This file is part of the GNU C Library.
       4  
       5     The GNU C Library is free software; you can redistribute it and/or
       6     modify it under the terms of the GNU Lesser General Public
       7     License as published by the Free Software Foundation; either
       8     version 2.1 of the License, or (at your option) any later version.
       9  
      10     The GNU C Library is distributed in the hope that it will be useful,
      11     but WITHOUT ANY WARRANTY; without even the implied warranty of
      12     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
      13     Lesser General Public License for more details.
      14  
      15     You should have received a copy of the GNU Lesser General Public
      16     License along with the GNU C Library; if not, see
      17     <https://www.gnu.org/licenses/>.  */
      18  
      19  #include <sys/ipc.h>  /* For __key_t  */
      20  #include <kernel-features.h>
      21  
      22  #ifdef __ASSUME_SYSVIPC_DEFAULT_IPC_64
      23  # define __IPC_64      0x0
      24  #else
      25  # define __IPC_64      0x100
      26  #endif
      27  
      28  #ifndef __OLD_IPC_ID_TYPE
      29  # define __OLD_IPC_ID_TYPE unsigned short int
      30  #endif
      31  #ifndef __OLD_IPC_MODE_TYPE
      32  # define __OLD_IPC_MODE_TYPE unsigned short int
      33  #endif
      34  
      35  struct __old_ipc_perm
      36  {
      37    __key_t __key;			/* Key.  */
      38    __OLD_IPC_ID_TYPE uid;		/* Owner's user ID.  */
      39    __OLD_IPC_ID_TYPE gid;		/* Owner's group ID.  */
      40    __OLD_IPC_ID_TYPE cuid;		/* Creator's user ID.  */
      41    __OLD_IPC_ID_TYPE cgid;		/* Creator's group ID.  */
      42    __OLD_IPC_MODE_TYPE mode;		/* Read/write permission.  */
      43    unsigned short int __seq;		/* Sequence number.  */
      44  };
      45  
      46  #define SEMCTL_ARG_ADDRESS(__arg) &__arg.array
      47  
      48  #define MSGRCV_ARGS(__msgp, __msgtyp) \
      49    ((long int []){ (long int) __msgp, __msgtyp })
      50  
      51  /* This macro is required to handle the s390 variants, which passes the
      52     arguments in a different order than default.  */
      53  #define SEMTIMEDOP_IPC_ARGS(__nsops, __sops, __timeout) \
      54    (__nsops), 0, (__sops), (__timeout)
      55  
      56  /* Linux SysV ipc does not provide new syscalls for 64-bit time support on
      57     32-bit architectures, but rather split the timestamp into high and low;
      58     storing the high value in previously unused fields.  */
      59  #if (__WORDSIZE == 32 \
      60       && (!defined __SYSCALL_WORDSIZE || __SYSCALL_WORDSIZE == 32))
      61  # define __IPC_TIME64 1
      62  #else
      63  # define __IPC_TIME64 0
      64  #endif
      65  
      66  #if __IPC_TIME64 || defined __ASSUME_SYSVIPC_BROKEN_MODE_T
      67  # define IPC_CTL_NEED_TRANSLATION 1
      68  #else
      69  # define IPC_CTL_NEED_TRANSLATION 0
      70  #endif
      71  
      72  #include <ipc_ops.h>