1 | /* Basic tests for stat, lstat, fstat, and fstatat. |
2 | Copyright (C) 2021-2022 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 <array_length.h> |
20 | #include <errno.h> |
21 | #include <fcntl.h> |
22 | #include <support/check.h> |
23 | #include <support/support.h> |
24 | #include <support/temp_file.h> |
25 | #include <support/xunistd.h> |
26 | #include <sys/stat.h> |
27 | #include <sys/sysmacros.h> |
28 | #include <stdio.h> |
29 | #include <unistd.h> |
30 | |
31 | static void |
32 | stat_check (int fd, const char *path, struct stat *st) |
33 | { |
34 | TEST_COMPARE (stat (path, st), 0); |
35 | } |
36 | |
37 | static void |
38 | lstat_check (int fd, const char *path, struct stat *st) |
39 | { |
40 | TEST_COMPARE (lstat (path, st), 0); |
41 | } |
42 | |
43 | static void |
44 | fstat_check (int fd, const char *path, struct stat *st) |
45 | { |
46 | /* Test for invalid fstat input (BZ #27559). */ |
47 | TEST_COMPARE (fstat (AT_FDCWD, st), -1); |
48 | TEST_COMPARE (errno, EBADF); |
49 | |
50 | TEST_COMPARE (fstat (fd, st), 0); |
51 | } |
52 | |
53 | static void |
54 | fstatat_check (int fd, const char *path, struct stat *st) |
55 | { |
56 | TEST_COMPARE (fstatat (fd, "" , st, 0), -1); |
57 | TEST_COMPARE (errno, ENOENT); |
58 | |
59 | TEST_COMPARE (fstatat (fd, path, st, 0), 0); |
60 | } |
61 | |
62 | typedef void (*test_t)(int, const char *path, struct stat *); |
63 | |
64 | static int |
65 | do_test (void) |
66 | { |
67 | char *path; |
68 | int fd = create_temp_file (base: "tst-fstat." , filename: &path); |
69 | TEST_VERIFY_EXIT (fd >= 0); |
70 | support_write_file_string (path, contents: "abc" ); |
71 | |
72 | /* This should help to prevent delayed allocation, which may result |
73 | in a spurious stx_blocks/st_blocks difference. */ |
74 | fsync (fd); |
75 | |
76 | bool check_ns = support_stat_nanoseconds (path); |
77 | if (!check_ns) |
78 | printf (format: "warning: timestamp with nanoseconds not supported\n" ); |
79 | |
80 | struct statx stx; |
81 | TEST_COMPARE (statx (fd, path, 0, STATX_BASIC_STATS, &stx), 0); |
82 | |
83 | test_t tests[] = { stat_check, lstat_check, fstat_check, fstatat_check }; |
84 | |
85 | for (int i = 0; i < array_length (tests); i++) |
86 | { |
87 | struct stat st; |
88 | tests[i](fd, path, &st); |
89 | |
90 | TEST_COMPARE (stx.stx_dev_major, major (st.st_dev)); |
91 | TEST_COMPARE (stx.stx_dev_minor, minor (st.st_dev)); |
92 | TEST_COMPARE (stx.stx_ino, st.st_ino); |
93 | TEST_COMPARE (stx.stx_mode, st.st_mode); |
94 | TEST_COMPARE (stx.stx_nlink, st.st_nlink); |
95 | TEST_COMPARE (stx.stx_uid, st.st_uid); |
96 | TEST_COMPARE (stx.stx_gid, st.st_gid); |
97 | TEST_COMPARE (stx.stx_rdev_major, major (st.st_rdev)); |
98 | TEST_COMPARE (stx.stx_rdev_minor, minor (st.st_rdev)); |
99 | TEST_COMPARE (stx.stx_blksize, st.st_blksize); |
100 | TEST_COMPARE (stx.stx_blocks, st.st_blocks); |
101 | |
102 | TEST_COMPARE (stx.stx_ctime.tv_sec, st.st_ctim.tv_sec); |
103 | TEST_COMPARE (stx.stx_mtime.tv_sec, st.st_mtim.tv_sec); |
104 | if (check_ns) |
105 | { |
106 | TEST_COMPARE (stx.stx_ctime.tv_nsec, st.st_ctim.tv_nsec); |
107 | TEST_COMPARE (stx.stx_mtime.tv_nsec, st.st_mtim.tv_nsec); |
108 | } |
109 | } |
110 | |
111 | return 0; |
112 | } |
113 | |
114 | #include <support/test-driver.c> |
115 | |