projects / thirdparty / glibc.git / blame
| Commit | Line | Data |
|---|---|---|
| 3a50811c | 1 | /* Checking macros for mq functions. |
| 2b778ceb | 2 | Copyright (C) 2007-2021 Free Software Foundation, Inc. |
| 3a50811c UD |
3 | This file is part of the GNU C Library. |
| 4 | ||
| 5 | The GNU C Library is free software; you can redistribute it and/or | |
| 6 | modify it under the terms of the GNU Lesser General Public | |
| 7 | License as published by the Free Software Foundation; either | |
| 8 | version 2.1 of the License, or (at your option) any later version. | |
| 9 | ||
| 10 | The GNU C Library is distributed in the hope that it will be useful, | |
| 11 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| 13 | Lesser General Public License for more details. | |
| 14 | ||
| 15 | You should have received a copy of the GNU Lesser General Public | |
| 59ba27a6 | 16 | License along with the GNU C Library; if not, see |
| 5a82c748 | 17 | <https://www.gnu.org/licenses/>. */ |
| 3a50811c UD |
18 | |
| 19 | #ifndef _FCNTL_H | |
| 20 | # error "Never include <bits/mqueue2.h> directly; use <mqueue.h> instead." | |
| 21 | #endif | |
| 22 | ||
| 23 | /* Check that calls to mq_open with O_CREAT set have an appropriate third and fourth | |
| 24 | parameter. */ | |
| a784e502 | 25 | extern mqd_t mq_open (const char *__name, int __oflag, ...) |
| 3a50811c | 26 | __THROW __nonnull ((1)); |
| a784e502 | 27 | extern mqd_t __mq_open_2 (const char *__name, int __oflag) |
| f16846a5 | 28 | __THROW __nonnull ((1)); |
| a784e502 | 29 | extern mqd_t __REDIRECT_NTH (__mq_open_alias, (const char *__name, |
| f16846a5 JJ |
30 | int __oflag, ...), mq_open) |
| 31 | __nonnull ((1)); | |
| 3a50811c UD |
32 | __errordecl (__mq_open_wrong_number_of_args, |
| 33 | "mq_open can be called either with 2 or 4 arguments"); | |
| 34 | __errordecl (__mq_open_missing_mode_and_attr, | |
| 35 | "mq_open with O_CREAT in second argument needs 4 arguments"); | |
| 36 | ||
| 5ac3ea17 | 37 | __fortify_function mqd_t |
| a784e502 | 38 | __NTH (mq_open (const char *__name, int __oflag, ...)) |
| 3a50811c UD |
39 | { |
| 40 | if (__va_arg_pack_len () != 0 && __va_arg_pack_len () != 2) | |
| 41 | __mq_open_wrong_number_of_args (); | |
| 42 | ||
| 43 | if (__builtin_constant_p (__oflag)) | |
| 44 | { | |
| 45 | if ((__oflag & O_CREAT) != 0 && __va_arg_pack_len () == 0) | |
| 46 | { | |
| 47 | __mq_open_missing_mode_and_attr (); | |
| 48 | return __mq_open_2 (__name, __oflag); | |
| 49 | } | |
| 50 | return __mq_open_alias (__name, __oflag, __va_arg_pack ()); | |
| 51 | } | |
| 52 | ||
| 53 | if (__va_arg_pack_len () == 0) | |
| 54 | return __mq_open_2 (__name, __oflag); | |
| 55 | ||
| 56 | return __mq_open_alias (__name, __oflag, __va_arg_pack ()); | |
| 57 | } |