1/* Basic posix_fadvise64 tests.
2 Copyright (C) 2016-2022 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 _FILE_OFFSET_BITS 64
20#include "tst-posix_fadvise-common.c"
21
22static int
23do_test (void)
24{
25 int ret = do_test_common ();
26 if (ret == 1)
27 return 1;
28
29 /* Test passing a negative length. The compat fadvise64 might use
30 off64_t for size argument passing, so using -1 for len without
31 _FILE_OFFSET_BITS might not trigger the length issue. */
32 if (posix_fadvise (fd: temp_fd, offset: 0, len: -1, POSIX_FADV_NORMAL) != EINVAL)
33 FAIL_EXIT1 ("posix_fadvise with negative length did not return EINVAL");
34
35 /* Check with some offset values larger than 32-bits. */
36 off_t offset = UINT32_MAX + 2048LL;
37 if (posix_fadvise (fd: temp_fd, offset: 0, len: offset, POSIX_FADV_NORMAL) != 0)
38 FAIL_EXIT1 ("posix_fadvise failed (offset = 0, len = %zd) failed",
39 (ssize_t)offset);
40
41 if (posix_fadvise (fd: temp_fd, offset: offset, len: 0, POSIX_FADV_NORMAL) != 0)
42 FAIL_EXIT1 ("posix_fadvise failed (offset = %zd, len = 0) failed",
43 (ssize_t)offset);
44
45 return 0;
46}
47

source code of glibc/posix/tst-posix_fadvise64.c