1  /* Copyright (C) 2004-2023 Free Software Foundation, Inc.
       2     This file is part of the GNU C Library.
       3  
       4     The GNU C Library is free software; you can redistribute it and/or
       5     modify it under the terms of the GNU Lesser General Public
       6     License as published by the Free Software Foundation; either
       7     version 2.1 of the License, or (at your option) any later version.
       8  
       9     The GNU C Library is distributed in the hope that it will be useful,
      10     but WITHOUT ANY WARRANTY; without even the implied warranty of
      11     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
      12     Lesser General Public License for more details.
      13  
      14     You should have received a copy of the GNU Lesser General Public
      15     License along with the GNU C Library; if not, see
      16     <https://www.gnu.org/licenses/>.  */
      17  
      18  #include <errno.h>
      19  #include <mqueue.h>
      20  #include <sysdep.h>
      21  #include <shlib-compat.h>
      22  
      23  /* Remove message queue named NAME.  */
      24  int
      25  __mq_unlink (const char *name)
      26  {
      27    if (name[0] != '/')
      28      return INLINE_SYSCALL_ERROR_RETURN_VALUE (EINVAL);
      29  
      30    int ret = INTERNAL_SYSCALL_CALL (mq_unlink, name + 1);
      31  
      32    /* While unlink can return either EPERM or EACCES, mq_unlink should
      33       return just EACCES.  */
      34    if (__glibc_unlikely (INTERNAL_SYSCALL_ERROR_P (ret)))
      35      {
      36        ret = INTERNAL_SYSCALL_ERRNO (ret);
      37        if (ret == EPERM)
      38  	ret = EACCES;
      39        return INLINE_SYSCALL_ERROR_RETURN_VALUE (ret);
      40      }
      41  
      42    return ret;
      43  }
      44  versioned_symbol (libc, __mq_unlink, mq_unlink, GLIBC_2_34);
      45  #if OTHER_SHLIB_COMPAT (librt, GLIBC_2_3_4, GLIBC_2_34)
      46  compat_symbol (libc, __mq_unlink, mq_unlink, GLIBC_2_3_4);
      47  #endif