1 | /* Common posix_fallocate tests definitions. |
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 | #include <fcntl.h> |
20 | #include <limits.h> |
21 | #include <stdint.h> |
22 | #include <sys/stat.h> |
23 | #include <sys/types.h> |
24 | #include <unistd.h> |
25 | |
26 | #include <support/support.h> |
27 | #include <support/check.h> |
28 | #include <support/temp_file.h> |
29 | |
30 | static char *temp_filename; |
31 | static int temp_fd; |
32 | |
33 | static void |
34 | do_prepare (int argc, char **argv) |
35 | { |
36 | temp_fd = create_temp_file (base: "tst-posix_fallocate." , filename: &temp_filename); |
37 | if (temp_fd == -1) |
38 | FAIL_EXIT1 ("cannot create temporary file: %m\n" ); |
39 | } |
40 | #define PREPARE do_prepare |
41 | |
42 | static int |
43 | do_test_with_offset (off_t offset) |
44 | { |
45 | struct stat st; |
46 | |
47 | if (posix_fallocate (fd: temp_fd, offset: offset, len: 768) != 0) |
48 | FAIL_EXIT1 ("1st posix_fallocate call failed" ); |
49 | |
50 | if (fstat (fd: temp_fd, buf: &st) != 0) |
51 | FAIL_EXIT1 ("2nd fstat failed" ); |
52 | |
53 | if (st.st_size != (offset + 768)) |
54 | FAIL_EXIT1 ("file size after first posix_fallocate call is %lu, " |
55 | "expected %lu" , |
56 | (unsigned long int) st.st_size, 512lu + 768lu); |
57 | |
58 | if (posix_fallocate (fd: temp_fd, offset: 0, len: 1024) != 0) |
59 | FAIL_EXIT1 ("2nd posix_fallocate call failed" ); |
60 | |
61 | if (fstat (fd: temp_fd, buf: &st) != 0) |
62 | FAIL_EXIT1 ("3rd fstat failed" ); |
63 | |
64 | if (st.st_size != (offset) + 768) |
65 | FAIL_EXIT1 ("file size changed in second posix_fallocate" ); |
66 | |
67 | offset += 2048; |
68 | if (posix_fallocate (fd: temp_fd, offset: offset, len: 64) != 0) |
69 | FAIL_EXIT1 ("3rd posix_fallocate call failed" ); |
70 | |
71 | if (fstat (fd: temp_fd, buf: &st) != 0) |
72 | FAIL_EXIT1 ("4th fstat failed" ); |
73 | |
74 | if (st.st_size != (offset + 64)) |
75 | FAIL_EXIT1 ("file size after first posix_fallocate call is %llu, " |
76 | "expected %u" , |
77 | (unsigned long long int) st.st_size, 2048u + 64u); |
78 | |
79 | return 0; |
80 | } |
81 | |
82 | /* This function is defined by the individual tests. */ |
83 | static int do_test (void); |
84 | |
85 | #include <support/test-driver.c> |
86 | |