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b168057a | 1 | /* Copyright (C) 2004-2015 Free Software Foundation, Inc. |
1b82c6c7 UD |
2 | This file is part of the GNU C Library. |
3 | ||
4 | The GNU C Library is free software; you can redistribute it and/or | |
5 | modify it under the terms of the GNU Lesser General Public | |
6 | License as published by the Free Software Foundation; either | |
7 | version 2.1 of the License, or (at your option) any later version. | |
8 | ||
9 | The GNU C Library is distributed in the hope that it will be useful, | |
10 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
11 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
12 | Lesser General Public License for more details. | |
13 | ||
14 | You should have received a copy of the GNU Lesser General Public | |
59ba27a6 PE |
15 | License along with the GNU C Library; if not, see |
16 | <http://www.gnu.org/licenses/>. */ | |
1b82c6c7 UD |
17 | |
18 | #include <errno.h> | |
19 | #include <mqueue.h> | |
20 | #include <stdarg.h> | |
6f0b2e1f | 21 | #include <stddef.h> |
3a50811c | 22 | #include <stdio.h> |
1b82c6c7 UD |
23 | #include <sysdep.h> |
24 | ||
25 | #ifdef __NR_mq_open | |
26 | ||
27 | /* Establish connection between a process and a message queue NAME and | |
28 | return message queue descriptor or (mqd_t) -1 on error. OFLAG determines | |
29 | the type of access used. If O_CREAT is on OFLAG, the third argument is | |
30 | taken as a `mode_t', the mode of the created message queue, and the fourth | |
31 | argument is taken as `struct mq_attr *', pointer to message queue | |
32 | attributes. If the fourth argument is NULL, default attributes are | |
33 | used. */ | |
34 | mqd_t | |
3a50811c | 35 | __mq_open (const char *name, int oflag, ...) |
1b82c6c7 UD |
36 | { |
37 | if (name[0] != '/') | |
38 | { | |
39 | __set_errno (EINVAL); | |
40 | return -1; | |
41 | } | |
42 | ||
43 | mode_t mode = 0; | |
44 | struct mq_attr *attr = NULL; | |
45 | if (oflag & O_CREAT) | |
46 | { | |
47 | va_list ap; | |
48 | ||
49 | va_start (ap, oflag); | |
50 | mode = va_arg (ap, mode_t); | |
51 | attr = va_arg (ap, struct mq_attr *); | |
52 | va_end (ap); | |
53 | } | |
54 | ||
55 | return INLINE_SYSCALL (mq_open, 4, name + 1, oflag, mode, attr); | |
56 | } | |
3a50811c | 57 | strong_alias (__mq_open, mq_open); |
1b82c6c7 | 58 | |
3a50811c UD |
59 | mqd_t |
60 | __mq_open_2 (const char *name, int oflag) | |
61 | { | |
62 | if (oflag & O_CREAT) | |
63 | __fortify_fail ("invalid mq_open call: O_CREAT without mode and attr"); | |
64 | ||
65 | return __mq_open (name, oflag); | |
66 | } | |
1b82c6c7 | 67 | #else |
2826ac7e | 68 | # include <rt/mq_open.c> |
1b82c6c7 | 69 | #endif |