1  /* Basic definition for Sysv IPC test functions.
       2     Copyright (C) 2020-2023 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  #ifndef _TEST_SYSV_H
      20  #define _TEST_SYSV_H
      21  
      22  #include <sys/ipc.h>
      23  #include <sys/sem.h>
      24  #include <sys/msg.h>
      25  #include <sys/shm.h>
      26  #include <include/array_length.h>
      27  
      28  /* Return the first invalid SysV IPC command from common shared
      29     between message queue, shared memory, and semaphore.  */
      30  static inline int
      31  first_common_invalid_cmd (void)
      32  {
      33    const int common_cmds[] = {
      34      IPC_RMID,
      35      IPC_SET,
      36      IPC_STAT,
      37      IPC_INFO,
      38    };
      39  
      40    int invalid = 0;
      41    for (int i = 0; i < array_length (common_cmds); i++)
      42      {
      43        if (invalid == common_cmds[i])
      44  	{
      45  	  invalid++;
      46  	  i = 0;
      47          }
      48      }
      49  
      50    return invalid;
      51  }
      52  
      53  /* Return the first invalid SysV IPC command for semaphore.  */
      54  static inline int
      55  first_sem_invalid_cmd (void)
      56  {
      57    const int sem_cmds[] = {
      58      GETPID,
      59      GETVAL,
      60      GETALL,
      61      GETNCNT,
      62      GETZCNT,
      63      SETVAL,
      64      SETALL,
      65      SEM_STAT,
      66      SEM_INFO,
      67  #ifdef SEM_STAT_ANY
      68      SEM_STAT_ANY,
      69  #endif
      70    };
      71  
      72    int invalid = first_common_invalid_cmd ();
      73    for (int i = 0; i < array_length (sem_cmds); i++)
      74      {
      75        if (invalid == sem_cmds[i])
      76  	{
      77  	  invalid++;
      78  	  i = 0;
      79  	}
      80      }
      81  
      82    return invalid;
      83  }
      84  
      85  /* Return the first invalid SysV IPC command for message queue.  */
      86  static inline int
      87  first_msg_invalid_cmd (void)
      88  {
      89    const int msg_cmds[] = {
      90      MSG_STAT,
      91      MSG_INFO,
      92  #ifdef MSG_STAT_ANY
      93      MSG_STAT_ANY,
      94  #endif
      95    };
      96  
      97    int invalid = first_common_invalid_cmd ();
      98    for (int i = 0; i < array_length (msg_cmds); i++)
      99      {
     100        if (invalid == msg_cmds[i])
     101  	{
     102  	  invalid++;
     103  	  i = 0;
     104  	}
     105      }
     106  
     107    return invalid;
     108  }
     109  
     110  /* Return the first invalid SysV IPC command for shared memory.  */
     111  static inline int
     112  first_shm_invalid_cmd (void)
     113  {
     114    const int shm_cmds[] = {
     115      SHM_STAT,
     116      SHM_INFO,
     117  #ifdef SHM_STAT_ANY
     118      SHM_STAT_ANY,
     119  #endif
     120      SHM_LOCK,
     121      SHM_UNLOCK
     122    };
     123  
     124    int invalid = first_common_invalid_cmd ();
     125    for (int i = 0; i < array_length (shm_cmds); i++)
     126      {
     127        if (invalid == shm_cmds[i])
     128  	{
     129  	  invalid++;
     130  	  i = 0;
     131  	}
     132      }
     133  
     134    return invalid;
     135  }
     136  
     137  #endif /* _TEST_SYSV_H  */