glibc/rt/mq_open.c

47 lines
1.6 KiB
C

/* Copyright (C) 2004-2020 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, see
<https://www.gnu.org/licenses/>. */
#include <errno.h>
#include <mqueue.h>
#include <stdio.h>
/* Establish connection between a process and a message queue NAME and
return message queue descriptor or (mqd_t) -1 on error. OFLAG determines
the type of access used. If O_CREAT is on OFLAG, the third argument is
taken as a `mode_t', the mode of the created message queue, and the fourth
argument is taken as `struct mq_attr *', pointer to message queue
attributes. If the fourth argument is NULL, default attributes are
used. */
mqd_t
__mq_open (const char *name, int oflag, ...)
{
__set_errno (ENOSYS);
return (mqd_t) -1;
}
strong_alias (__mq_open, mq_open);
stub_warning (mq_open)
mqd_t
__mq_open_2 (const char *name, int oflag)
{
if (oflag & O_CREAT)
__fortify_fail ("invalid mq_open call: O_CREAT without mode and attr");
return __mq_open (name, oflag);
}
stub_warning (__mq_open_2)