rt/mq_open.c

   1 /* Copyright (C) 2004-2018 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    <http://www.gnu.org/licenses/>.  */
  17
  18 #include <errno.h>
  19 #include <mqueue.h>
  20 #include <stdio.h>
  21
  22 /* Establish connection between a process and a message queue NAME and
  23    return message queue descriptor or (mqd_t) -1 on error.  OFLAG determines
  24    the type of access used.  If O_CREAT is on OFLAG, the third argument is
  25    taken as a `mode_t', the mode of the created message queue, and the fourth
  26    argument is taken as `struct mq_attr *', pointer to message queue
  27    attributes.  If the fourth argument is NULL, default attributes are
  28    used.  */
  29 mqd_t
  30 __mq_open (const char *name, int oflag, ...)
  31 {
  32   __set_errno (ENOSYS);
  33   return (mqd_t) -1;
  34 }
  35 strong_alias (__mq_open, mq_open);
  36 stub_warning (mq_open)
  37
  38 mqd_t
  39 __mq_open_2 (const char *name, int oflag)
  40 {
  41   if (oflag & O_CREAT)
  42     __fortify_fail ("invalid mq_open call: O_CREAT without mode and attr");
  43
  44   return __mq_open (name, oflag);
  45 }
  46 stub_warning (__mq_open_2)