| /* Checking macros for mq functions. |
| Copyright (C) 2007-2014 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/>. */ |
| |
| #ifndef _FCNTL_H |
| # error "Never include <bits/mqueue2.h> directly; use <mqueue.h> instead." |
| #endif |
| |
| /* Check that calls to mq_open with O_CREAT set have an appropriate third and fourth |
| parameter. */ |
| extern mqd_t mq_open (const char *__name, int __oflag, ...) |
| __THROW __nonnull ((1)); |
| extern mqd_t __mq_open_2 (const char *__name, int __oflag) |
| __THROW __nonnull ((1)); |
| extern mqd_t __REDIRECT_NTH (__mq_open_alias, (const char *__name, |
| int __oflag, ...), mq_open) |
| __nonnull ((1)); |
| __errordecl (__mq_open_wrong_number_of_args, |
| "mq_open can be called either with 2 or 4 arguments"); |
| __errordecl (__mq_open_missing_mode_and_attr, |
| "mq_open with O_CREAT in second argument needs 4 arguments"); |
| |
| __fortify_function mqd_t |
| __NTH (mq_open (const char *__name, int __oflag, ...)) |
| { |
| if (__va_arg_pack_len () != 0 && __va_arg_pack_len () != 2) |
| __mq_open_wrong_number_of_args (); |
| |
| if (__builtin_constant_p (__oflag)) |
| { |
| if ((__oflag & O_CREAT) != 0 && __va_arg_pack_len () == 0) |
| { |
| __mq_open_missing_mode_and_attr (); |
| return __mq_open_2 (__name, __oflag); |
| } |
| return __mq_open_alias (__name, __oflag, __va_arg_pack ()); |
| } |
| |
| if (__va_arg_pack_len () == 0) |
| return __mq_open_2 (__name, __oflag); |
| |
| return __mq_open_alias (__name, __oflag, __va_arg_pack ()); |
| } |