| /* Copyright (C) 2004-2014 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 |
| <http://www.gnu.org/licenses/>. */ |
| |
| #include <errno.h> |
| #include <mqueue.h> |
| #include <stdarg.h> |
| #include <stddef.h> |
| #include <stdio.h> |
| #include <sysdep.h> |
| |
| #ifdef __NR_mq_open |
| |
| /* 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] != '/') |
| { |
| __set_errno (EINVAL); |
| return -1; |
| } |
| |
| 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); |
| } |
| #else |
| # include <rt/mq_open.c> |
| #endif |