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924e32b1 | 1 | /* Tests for pread64 and pwrite64. |
04277e02 | 2 | Copyright (C) 2000-2019 Free Software Foundation, Inc. |
41bdb6e2 | 3 | This file is part of the GNU C Library. |
924e32b1 UD |
4 | |
5 | The GNU C Library is free software; you can redistribute it and/or | |
41bdb6e2 AJ |
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. | |
924e32b1 UD |
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 | |
41bdb6e2 | 13 | Lesser General Public License for more details. |
924e32b1 | 14 | |
41bdb6e2 | 15 | You should have received a copy of the GNU Lesser General Public |
59ba27a6 | 16 | License along with the GNU C Library; if not, see |
5a82c748 | 17 | <https://www.gnu.org/licenses/>. */ |
924e32b1 | 18 | |
3bbee82a L |
19 | #define _FILE_OFFSET_BITS 64 |
20 | #include "tst-preadwrite-common.c" | |
924e32b1 | 21 | |
3bbee82a L |
22 | static int |
23 | do_test (void) | |
24 | { | |
25 | ssize_t ret; | |
26 | ||
27 | ret = do_test_with_offset (0); | |
28 | if (ret == -1) | |
29 | return 1; | |
30 | ||
31 | /* Create a sparse file larger than 4GB to check if offset is handled | |
32 | correctly in p{write,read}64. */ | |
33 | off_t base_offset = UINT32_MAX + 2048LL; | |
34 | ret = do_test_with_offset (base_offset); | |
35 | if (ret == -1) | |
36 | return 1; | |
37 | ||
38 | struct stat st; | |
39 | if (fstat (fd, &st) == -1) | |
40 | { | |
41 | printf ("error: fstat on temporary file failed: %m"); | |
42 | return 1; | |
43 | } | |
44 | ||
45 | /* The file size should >= base_offset plus bytes read. */ | |
46 | off_t expected_value = base_offset + ret; | |
47 | if (st.st_size < expected_value) | |
48 | { | |
49 | printf ("error: file size less than expected (%jd > %jd)\n", | |
50 | (intmax_t) expected_value, (intmax_t) st.st_size); | |
51 | return 1; | |
52 | } | |
53 | ||
54 | return 0; | |
55 | } |