1 | /* Copyright (C) 2003-2024 Free Software Foundation, Inc. |
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 |
15 | License along with the GNU C Library; if not, see |
16 | <https://www.gnu.org/licenses/>. */ |
17 | |
18 | #include <errno.h> |
19 | #include <fcntl.h> |
20 | #include <semaphore.h> |
21 | #include <stdio.h> |
22 | #include <stdlib.h> |
23 | #include <unistd.h> |
24 | |
25 | |
26 | static void |
27 | remove_sem (int status, void *arg) |
28 | { |
29 | sem_unlink (name: arg); |
30 | } |
31 | |
32 | |
33 | static int |
34 | do_test (void) |
35 | { |
36 | sem_t *s; |
37 | int i; |
38 | |
39 | on_exit (func: remove_sem, arg: (void *) "/glibc-tst-sem9" ); |
40 | |
41 | for (i = 0; i < 3; ++i) |
42 | { |
43 | s = sem_open (name: "/glibc-tst-sem9" , O_CREAT, 0600, 1); |
44 | if (s == SEM_FAILED) |
45 | { |
46 | if (errno == ENOSYS) |
47 | { |
48 | puts (s: "sem_open not supported. Oh well." ); |
49 | return 0; |
50 | } |
51 | |
52 | /* Maybe the shm filesystem has strict permissions. */ |
53 | if (errno == EACCES) |
54 | { |
55 | puts (s: "sem_open not allowed. Oh well." ); |
56 | return 0; |
57 | } |
58 | |
59 | printf (format: "sem_open: %m\n" ); |
60 | return 1; |
61 | } |
62 | |
63 | /* Now close the handle. */ |
64 | if (sem_close (sem: s) != 0) |
65 | { |
66 | puts (s: "sem_close failed" ); |
67 | return 1; |
68 | } |
69 | |
70 | /* And remove it. */ |
71 | if (sem_unlink (name: "/glibc-tst-sem9" ) != 0) |
72 | { |
73 | puts (s: "sem_unlink failed" ); |
74 | return 1; |
75 | } |
76 | } |
77 | |
78 | return 0; |
79 | } |
80 | |
81 | #define TEST_FUNCTION do_test () |
82 | #include "../test-skeleton.c" |
83 | |