1 | /* Tests for pread64 and pwrite64. |
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-preadvwritev-common.c" |
21 | |
22 | static int |
23 | do_test (void) |
24 | { |
25 | int ret; |
26 | |
27 | ret = do_test_with_offset (offset: 0); |
28 | |
29 | if (!temp_fd_supports_holes) |
30 | { |
31 | puts (s: "warning: partial test due to lack of support for holes" ); |
32 | return ret; |
33 | } |
34 | |
35 | /* Create a sparse file larger than 4GB to check if offset is handled |
36 | correctly in p{write,read}v64. */ |
37 | off_t base_offset = UINT32_MAX + 2048LL; |
38 | ret += do_test_with_offset (offset: base_offset); |
39 | |
40 | struct stat st; |
41 | if (fstat (fd: temp_fd, buf: &st) == -1) |
42 | { |
43 | printf (format: "error: fstat on temporary file failed: %m" ); |
44 | return 1; |
45 | } |
46 | |
47 | /* The total size should base_offset plus 2 * 96. */ |
48 | off_t expected_value = base_offset + (2 * (96LL)); |
49 | if (st.st_size != expected_value) |
50 | { |
51 | printf (format: "error: file size different than expected (%jd != %jd)\n" , |
52 | (intmax_t) expected_value, (intmax_t) st.st_size); |
53 | return 1; |
54 | } |
55 | |
56 | return ret; |
57 | } |
58 | |