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/* Copyright (C) 2004-2021 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 <stdarg.h>
#include <stddef.h>
#include <stdio.h>
#include <sysdep.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, ...)
{
if (name[0] != '/')
return INLINE_SYSCALL_ERROR_RETURN_VALUE (EINVAL);
mode_t mode = 0;
struct mq_attr *attr = NULL;
if (oflag & O_CREAT)
{
va_list ap;
va_start (ap, oflag);
mode = va_arg (ap, mode_t);
attr = va_arg (ap, struct mq_attr *);
va_end (ap);
}
return INLINE_SYSCALL (mq_open, 4, name + 1, oflag, mode, attr);
}
strong_alias (__mq_open, 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);
}
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