| /* Tests of utime. |
| Copyright (C) 2017-2020 Free Software Foundation, Inc. |
| |
| This program is free software: you can redistribute it and/or modify |
| it under the terms of the GNU General Public License as published by |
| the Free Software Foundation; either version 3 of the License, or |
| (at your option) any later version. |
| |
| This program is distributed in the hope that it will be useful, |
| but WITHOUT ANY WARRANTY; without even the implied warranty of |
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| GNU General Public License for more details. |
| |
| You should have received a copy of the GNU General Public License |
| along with this program. If not, see <https://www.gnu.org/licenses/>. */ |
| |
| #include <config.h> |
| |
| #include <utime.h> |
| |
| #include <stdbool.h> |
| #include <stdio.h> |
| #include <stdlib.h> |
| |
| #include "ignore-value.h" |
| #include "macros.h" |
| |
| #define BASE "test-utime.t" |
| |
| #include "test-utimens-common.h" |
| |
| /* If PRINT, warn before skipping tests with status 77. */ |
| static int |
| test_utime (bool print) |
| { |
| struct stat st1; |
| struct stat st2; |
| |
| ASSERT (close (creat (BASE "file", 0600)) == 0); |
| ASSERT (stat (BASE "file", &st1) == 0); |
| nap (); |
| ASSERT (utime (BASE "file", NULL) == 0); |
| ASSERT (stat (BASE "file", &st2) == 0); |
| ASSERT (0 <= utimecmp (BASE "file", &st2, &st1, UTIMECMP_TRUNCATE_SOURCE)); |
| if (check_ctime) |
| ASSERT (ctime_compare (&st1, &st2) < 0); |
| { |
| /* On some NFS systems, the 'now' timestamp of creat or a NULL |
| utimbuf is determined by the server, but the 'now' timestamp |
| determined by time() is determined by the client; since the two |
| machines are not necessarily on the same clock, this is another |
| case where time can appear to go backwards. The rest of this |
| test cares about client time, so manually use time() to set |
| both times. */ |
| struct utimbuf ts; |
| ts.actime = ts.modtime = time (NULL); |
| ASSERT (utime (BASE "file", &ts) == 0); |
| ASSERT (stat (BASE "file", &st1) == 0); |
| nap (); |
| } |
| |
| /* Invalid arguments. */ |
| errno = 0; |
| ASSERT (utime ("no_such", NULL) == -1); |
| ASSERT (errno == ENOENT); |
| errno = 0; |
| ASSERT (utime ("no_such/", NULL) == -1); |
| ASSERT (errno == ENOENT || errno == ENOTDIR); |
| errno = 0; |
| ASSERT (utime ("", NULL) == -1); |
| ASSERT (errno == ENOENT); |
| { |
| struct utimbuf ts; |
| ts.actime = ts.modtime = Y2K; |
| errno = 0; |
| ASSERT (utime (BASE "file/", &ts) == -1); |
| ASSERT (errno == ENOTDIR || errno == EINVAL); |
| } |
| ASSERT (stat (BASE "file", &st2) == 0); |
| ASSERT (st1.st_atime == st2.st_atime); |
| ASSERT (get_stat_atime_ns (&st1) == get_stat_atime_ns (&st2)); |
| ASSERT (utimecmp (BASE "file", &st1, &st2, 0) == 0); |
| |
| /* Set both times. */ |
| { |
| struct utimbuf ts; |
| ts.actime = ts.modtime = Y2K; |
| ASSERT (utime (BASE "file", &ts) == 0); |
| ASSERT (stat (BASE "file", &st2) == 0); |
| ASSERT (st2.st_atime == Y2K); |
| ASSERT (0 <= get_stat_atime_ns (&st2)); |
| ASSERT (get_stat_atime_ns (&st2) < BILLION / 2); |
| ASSERT (st2.st_mtime == Y2K); |
| ASSERT (0 <= get_stat_mtime_ns (&st2)); |
| ASSERT (get_stat_mtime_ns (&st2) < BILLION); |
| if (check_ctime) |
| ASSERT (ctime_compare (&st1, &st2) < 0); |
| } |
| |
| /* Make sure this dereferences symlinks. */ |
| if (symlink (BASE "file", BASE "link")) |
| { |
| ASSERT (unlink (BASE "file") == 0); |
| if (print) |
| fputs ("skipping test: symlinks not supported on this file system\n", |
| stderr); |
| return 77; |
| } |
| ASSERT (lstat (BASE "link", &st1) == 0); |
| ASSERT (st1.st_mtime != Y2K); |
| errno = 0; |
| ASSERT (utime (BASE "link/", NULL) == -1); |
| ASSERT (errno == ENOTDIR); |
| { |
| struct utimbuf ts; |
| ts.actime = ts.modtime = Y2K; |
| ASSERT (utime (BASE "link", &ts) == 0); |
| ASSERT (lstat (BASE "link", &st2) == 0); |
| /* Can't compare atimes, since lstat() changes symlink atime on cygwin. */ |
| ASSERT (st1.st_mtime == st2.st_mtime); |
| ASSERT (stat (BASE "link", &st2) == 0); |
| ASSERT (st2.st_mtime == Y2K); |
| ASSERT (get_stat_mtime_ns (&st2) == 0); |
| } |
| |
| /* Cleanup. */ |
| ASSERT (unlink (BASE "link") == 0); |
| ASSERT (unlink (BASE "file") == 0); |
| return 0; |
| } |
| |
| int |
| main (void) |
| { |
| int result1; /* Skip because of no symlink support. */ |
| |
| /* Clean up any trash from prior testsuite runs. */ |
| ignore_value (system ("rm -rf " BASE "*")); |
| |
| result1 = test_utime (true); |
| return result1; |
| } |