1 | /* Regression test for bug 11319. |
2 | Copyright (C) 2018-2022 Free Software Foundation, Inc. |
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 |
16 | License along with the GNU C Library; if not, see |
17 | <https://www.gnu.org/licenses/>. */ |
18 | |
19 | #define _GNU_SOURCE 1 |
20 | |
21 | #include <fcntl.h> |
22 | #include <stdio.h> |
23 | #include <stdlib.h> |
24 | |
25 | #include <support/check.h> |
26 | #include <support/temp_file.h> |
27 | #include <support/xunistd.h> |
28 | |
29 | static int |
30 | do_test (void) |
31 | { |
32 | char *tempfile; |
33 | int fd; |
34 | |
35 | /* Create a temporary file and open it in read-only mode. */ |
36 | TEST_VERIFY_EXIT (create_temp_file ("tst-bz11319" , &tempfile)); |
37 | fd = xopen (path: tempfile, O_RDONLY, 0660); |
38 | |
39 | /* Try and write to the temporary file to intentionally fail, then |
40 | check that dprintf (or __dprintf_chk) return EOF. */ |
41 | TEST_COMPARE (dprintf (fd, "%d" , 0), EOF); |
42 | |
43 | xclose (fd); |
44 | free (ptr: tempfile); |
45 | |
46 | return 0; |
47 | } |
48 | |
49 | #include <support/test-driver.c> |
50 | |