]>
Commit | Line | Data |
---|---|---|
32ff3975 | 1 | /* Test that _IO_wfile_sync does not crash (bug 20568). |
6d7e8eda | 2 | Copyright (C) 2019-2023 Free Software Foundation, Inc. |
32ff3975 AS |
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 | |
5a82c748 | 17 | <https://www.gnu.org/licenses/>. */ |
32ff3975 | 18 | |
8faa1e04 | 19 | #include <fcntl.h> |
32ff3975 AS |
20 | #include <locale.h> |
21 | #include <stdio.h> | |
8faa1e04 SH |
22 | #include <stdlib.h> |
23 | #include <string.h> | |
32ff3975 AS |
24 | #include <wchar.h> |
25 | #include <support/check.h> | |
8faa1e04 | 26 | #include <support/xstdio.h> |
32ff3975 | 27 | #include <support/xunistd.h> |
8faa1e04 SH |
28 | #include <support/temp_file.h> |
29 | ||
30 | static const char test_data[] = "This is a test of _IO_wfile_sync."; | |
32ff3975 AS |
31 | |
32 | static int | |
33 | do_test (void) | |
34 | { | |
8faa1e04 SH |
35 | static char *infile; |
36 | int infd; | |
37 | FILE *infp; | |
38 | ||
39 | infd = create_temp_file ("tst-wfile-sync-in-", &infile); | |
40 | xwrite (infd, test_data, strlen (test_data)); | |
41 | xclose (infd); | |
42 | ||
43 | infd = xopen (infile, O_RDONLY, 0); | |
44 | infp = fdopen (infd, "r"); | |
45 | ||
32ff3975 AS |
46 | TEST_VERIFY_EXIT (setlocale (LC_ALL, "de_DE.UTF-8") != NULL); |
47 | /* Fill the stdio buffer and advance the read pointer. */ | |
8faa1e04 | 48 | TEST_VERIFY_EXIT (fgetwc (infp) != WEOF); |
32ff3975 | 49 | /* This calls _IO_wfile_sync, it should not crash. */ |
8faa1e04 | 50 | TEST_VERIFY_EXIT (setvbuf (infp, NULL, _IONBF, 0) == 0); |
32ff3975 | 51 | /* Verify that the external file offset has been synchronized. */ |
8faa1e04 SH |
52 | TEST_COMPARE (xlseek (infd, 0, SEEK_CUR), 1); |
53 | ||
54 | fclose (infp); | |
55 | free (infile); | |
32ff3975 AS |
56 | |
57 | return 0; | |
58 | } | |
59 | ||
60 | #include <support/test-driver.c> |