1 /* Test of file timestamp modification functions.
2 Copyright (C) 2009 Free Software Foundation, Inc.
4 This program is free software: you can redistribute it and/or modify
5 it under the terms of the GNU General Public License as published by
6 the Free Software Foundation; either version 2 of the License, or
7 (at your option) any later version.
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 GNU General Public License for more details.
14 You should have received a copy of the GNU General Public License
15 along with this program. If not, see <http://www.gnu.org/licenses/>. */
17 #include "test-utimens-common.h"
19 /* This file is designed to test both utimens(a,b) and
20 utimensat(AT_FDCWD,a,b,0). FUNC is the function to test. Assumes
21 that BASE and ASSERT are already defined. If PRINT, warn before
22 skipping tests with status 77. */
24 test_utimens (int (*func) (char const *, struct timespec const *), bool print)
29 ASSERT (close (creat (BASE "file", 0600)) == 0);
30 /* If utimens truncates to less resolution than the file system
31 supports, then time can appear to go backwards between now and a
32 follow-up utimens with UTIME_NOW or a NULL timespec. Use
33 UTIMECMP_TRUNCATE_SOURCE to compensate, with st1 as the
35 ASSERT (stat (BASE "file", &st1) == 0);
37 ASSERT (func (BASE "file", NULL) == 0);
38 ASSERT (stat (BASE "file", &st2) == 0);
39 ASSERT (0 <= utimecmp (BASE "file", &st2, &st1, UTIMECMP_TRUNCATE_SOURCE));
41 /* On some NFS systems, the 'now' timestamp of creat or a NULL
42 timespec is determined by the server, but the 'now' timestamp
43 determined by gettime() (as is done when using UTIME_NOW) is
44 determined by the client; since the two machines are not
45 necessarily on the same clock, this is another case where time
46 can appear to go backwards. The rest of this test cares about
47 client time, so manually use gettime() to set both times. */
48 struct timespec ts[2];
51 ASSERT (func (BASE "file", ts) == 0);
52 ASSERT (stat (BASE "file", &st1) == 0);
56 /* Invalid arguments. */
58 ASSERT (func ("no_such", NULL) == -1);
59 ASSERT (errno == ENOENT);
61 ASSERT (func ("", NULL) == -1);
62 ASSERT (errno == ENOENT);
64 struct timespec ts[2] = { { Y2K, UTIME_BOGUS_POS }, { Y2K, 0 } };
66 ASSERT (func (BASE "file", ts) == -1);
67 ASSERT (errno == EINVAL);
70 struct timespec ts[2] = { { Y2K, 0 }, { Y2K, UTIME_BOGUS_NEG } };
72 ASSERT (func (BASE "file", ts) == -1);
73 ASSERT (errno == EINVAL);
75 ASSERT (stat (BASE "file", &st2) == 0);
76 ASSERT (st1.st_atime == st2.st_atime);
77 ASSERT (get_stat_atime_ns (&st1) == get_stat_atime_ns (&st2));
78 ASSERT (utimecmp (BASE "file", &st1, &st2, 0) == 0);
82 struct timespec ts[2] = { { Y2K, BILLION / 2 - 1 }, { Y2K, BILLION - 1 } };
83 ASSERT (func (BASE "file", ts) == 0);
84 ASSERT (stat (BASE "file", &st2) == 0);
85 ASSERT (st2.st_atime == Y2K);
86 ASSERT (0 <= get_stat_atime_ns (&st2));
87 ASSERT (get_stat_atime_ns (&st2) < BILLION / 2);
88 ASSERT (st2.st_mtime == Y2K);
89 ASSERT (0 <= get_stat_mtime_ns (&st2));
90 ASSERT (get_stat_mtime_ns (&st2) < BILLION);
93 /* Play with UTIME_OMIT, UTIME_NOW. */
95 struct timespec ts[2] = { { BILLION, UTIME_OMIT }, { 0, UTIME_NOW } };
96 ASSERT (func (BASE "file", ts) == 0);
97 ASSERT (stat (BASE "file", &st2) == 0);
98 ASSERT (st2.st_atime == Y2K);
99 ASSERT (0 <= get_stat_atime_ns (&st2));
100 ASSERT (get_stat_atime_ns (&st2) < BILLION / 2);
101 /* See comment above about this utimecmp call. */
102 ASSERT (0 <= utimecmp (BASE "file", &st2, &st1, UTIMECMP_TRUNCATE_SOURCE));
105 /* Make sure this dereferences symlinks. */
106 if (symlink (BASE "file", BASE "link"))
108 ASSERT (unlink (BASE "file") == 0);
110 fputs ("skipping test: symlinks not supported on this file system\n",
114 ASSERT (lstat (BASE "link", &st1) == 0);
115 ASSERT (st1.st_mtime != Y2K);
117 struct timespec ts[2] = { { Y2K, 0 }, { Y2K, 0 } };
118 ASSERT (func (BASE "link", ts) == 0);
119 ASSERT (lstat (BASE "link", &st2) == 0);
120 /* Can't compare atimes, since lstat() changes symlink atime on cygwin. */
121 ASSERT (st1.st_mtime == st2.st_mtime);
122 ASSERT (stat (BASE "link", &st2) == 0);
123 ASSERT (st2.st_mtime == Y2K);
124 ASSERT (get_stat_mtime_ns (&st2) == 0);
128 ASSERT (unlink (BASE "link") == 0);
129 ASSERT (unlink (BASE "file") == 0);