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67 lines
2.0 KiB
C
67 lines
2.0 KiB
C
/* Copyright (C) 2004-2017 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<http://www.gnu.org/licenses/>. */
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#include <errno.h>
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#include <mqueue.h>
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#include <stdarg.h>
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#include <stddef.h>
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#include <stdio.h>
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#include <sysdep.h>
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#ifdef __NR_mq_open
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/* Establish connection between a process and a message queue NAME and
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return message queue descriptor or (mqd_t) -1 on error. OFLAG determines
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the type of access used. If O_CREAT is on OFLAG, the third argument is
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taken as a `mode_t', the mode of the created message queue, and the fourth
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argument is taken as `struct mq_attr *', pointer to message queue
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attributes. If the fourth argument is NULL, default attributes are
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used. */
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mqd_t
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__mq_open (const char *name, int oflag, ...)
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{
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if (name[0] != '/')
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return INLINE_SYSCALL_ERROR_RETURN_VALUE (EINVAL);
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mode_t mode = 0;
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struct mq_attr *attr = NULL;
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if (oflag & O_CREAT)
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{
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va_list ap;
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va_start (ap, oflag);
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mode = va_arg (ap, mode_t);
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attr = va_arg (ap, struct mq_attr *);
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va_end (ap);
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}
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return INLINE_SYSCALL (mq_open, 4, name + 1, oflag, mode, attr);
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}
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strong_alias (__mq_open, mq_open);
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mqd_t
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__mq_open_2 (const char *name, int oflag)
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{
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if (oflag & O_CREAT)
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__fortify_fail ("invalid mq_open call: O_CREAT without mode and attr");
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return __mq_open (name, oflag);
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}
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#else
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# include <rt/mq_open.c>
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#endif
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