243 lines
7.2 KiB
C
243 lines
7.2 KiB
C
/* Test of file timestamp modification functions.
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Copyright (C) 2009-2025 Free Software Foundation, Inc.
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <https://www.gnu.org/licenses/>. */
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#include "test-utimens-common.h"
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/* This file is designed to test both lutimens(a,b) and
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utimensat(AT_FDCWD,a,b,AT_SYMLINK_NOFOLLOW). FUNC is the function
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to test. Assumes that BASE and ASSERT are already defined. If
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PRINT, warn before skipping tests with status 77. */
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static int
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test_lutimens (int (*func) (char const *, struct timespec const *), bool print)
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{
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int result;
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int saved_errno;
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struct stat st1;
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struct stat st2;
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/* Non-symlinks should be handled just like utimens. */
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errno = 0;
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ASSERT (func ("no_such", NULL) == -1);
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ASSERT (errno == ENOENT);
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errno = 0;
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ASSERT (func ("no_such/", NULL) == -1);
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ASSERT (errno == ENOENT || errno == ENOTDIR);
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errno = 0;
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ASSERT (func ("", NULL) == -1);
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ASSERT (errno == ENOENT);
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int fd = open (BASE "file", O_RDWR | O_CREAT | O_TRUNC, 0600);
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ASSERT (0 <= fd);
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bool check_atime = checkable_atime (fd, &st1);
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ASSERT (close (fd) == 0);
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ASSERT (st1.st_atime != Y2K);
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ASSERT (st1.st_mtime != Y2K);
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{
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struct timespec ts[2];
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ts[0].tv_sec = Y2K;
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ts[0].tv_nsec = 0;
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ts[1] = ts[0];
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errno = 0;
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ASSERT (func (BASE "file/", ts) == -1);
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ASSERT (errno == ENOTDIR);
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ASSERT (stat (BASE "file", &st2) == 0);
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if (check_atime)
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ASSERT (st1.st_atime == st2.st_atime);
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ASSERT (st1.st_mtime == st2.st_mtime);
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}
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{
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struct timespec ts[2];
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ts[0].tv_sec = Y2K;
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ts[0].tv_nsec = 0;
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ts[1] = ts[0];
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nap ();
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ASSERT (func (BASE "file", ts) == 0);
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}
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ASSERT (stat (BASE "file", &st2) == 0);
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if (check_atime)
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ASSERT (st2.st_atime == Y2K);
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ASSERT (st2.st_mtime == Y2K);
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if (check_ctime)
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ASSERT (ctime_compare (&st1, &st2) < 0);
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/* Play with symlink timestamps. */
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if (symlink (BASE "file", BASE "link"))
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{
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ASSERT (unlink (BASE "file") == 0);
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if (print)
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fputs ("skipping test: symlinks not supported on this file system\n",
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stderr);
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return 77;
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}
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errno = 0;
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result = func (BASE "link", NULL);
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saved_errno = errno;
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/* Make sure we did not reference through link by accident. */
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ASSERT (stat (BASE "file", &st1) == 0);
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if (check_atime)
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ASSERT (st1.st_atime == Y2K);
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ASSERT (st1.st_mtime == Y2K);
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ASSERT (lstat (BASE "link", &st1) == 0);
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if (check_atime)
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ASSERT (st1.st_atime != Y2K);
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ASSERT (st1.st_mtime != Y2K);
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ASSERT (unlink (BASE "file") == 0);
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if (result == -1 && saved_errno == ENOSYS)
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{
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ASSERT (unlink (BASE "link") == 0);
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if (print)
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fputs ("skipping test: "
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"setting symlink time not supported on this file system\n",
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stderr);
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return 77;
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}
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ASSERT (!result);
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ASSERT (lstat (BASE "link", &st1) == 0);
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nap ();
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ASSERT (lstat (BASE "link", &st2) == 0);
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/* On cygwin, lstat() changes atime of symlinks, so that lutimens
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can effectively modify only mtime. */
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bool check_atime_on_symlinks
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= (check_atime
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&& st1.st_atime == st2.st_atime
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&& get_stat_atime_ns (&st1) == get_stat_atime_ns (&st2));
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ASSERT (st1.st_ctime == st2.st_ctime);
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ASSERT (get_stat_ctime_ns (&st1) == get_stat_ctime_ns (&st2));
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/* Invalid arguments. */
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{
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struct timespec ts[2];
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ts[0].tv_sec = Y2K;
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ts[0].tv_nsec = UTIME_BOGUS_POS;
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ts[1].tv_sec = Y2K;
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ts[1].tv_nsec = 0;
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errno = 0;
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ASSERT (func (BASE "link", ts) == -1);
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ASSERT (errno == EINVAL);
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}
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{
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struct timespec ts[2];
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ts[0].tv_sec = Y2K;
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ts[0].tv_nsec = 0;
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ts[1].tv_sec = Y2K;
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ts[1].tv_nsec = UTIME_BOGUS_NEG;
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errno = 0;
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ASSERT (func (BASE "link", ts) == -1);
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ASSERT (errno == EINVAL);
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}
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ASSERT (lstat (BASE "link", &st2) == 0);
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if (check_atime_on_symlinks)
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{
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ASSERT (st1.st_atime == st2.st_atime);
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ASSERT (get_stat_atime_ns (&st1) == get_stat_atime_ns (&st2));
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}
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ASSERT (utimecmp (BASE "link", &st1, &st2, 0) == 0);
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/* Set both times. */
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{
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struct timespec ts[2];
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ts[0].tv_sec = Y2K;
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ts[0].tv_nsec = BILLION / 2 - 1;
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ts[1].tv_sec = Y2K;
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ts[1].tv_nsec = BILLION - 1;
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nap ();
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ASSERT (func (BASE "link", ts) == 0);
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ASSERT (lstat (BASE "link", &st2) == 0);
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if (check_atime_on_symlinks)
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{
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ASSERT (st2.st_atime == Y2K);
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ASSERT (0 <= get_stat_atime_ns (&st2));
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ASSERT (get_stat_atime_ns (&st2) < BILLION / 2);
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}
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ASSERT (st2.st_mtime == Y2K);
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ASSERT (0 <= get_stat_mtime_ns (&st2));
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ASSERT (get_stat_mtime_ns (&st2) < BILLION);
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if (check_ctime)
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ASSERT (ctime_compare (&st1, &st2) < 0);
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}
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/* Play with UTIME_OMIT, UTIME_NOW. */
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{
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struct stat st3;
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struct timespec ts[2];
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ts[0].tv_sec = BILLION;
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ts[0].tv_nsec = UTIME_OMIT;
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ts[1].tv_sec = 0;
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ts[1].tv_nsec = UTIME_NOW;
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nap ();
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ASSERT (func (BASE "link", ts) == 0);
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ASSERT (lstat (BASE "link", &st3) == 0);
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if (check_atime_on_symlinks)
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{
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ASSERT (st3.st_atime == Y2K);
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ASSERT (0 <= get_stat_atime_ns (&st3));
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ASSERT (get_stat_atime_ns (&st3) < BILLION / 2);
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}
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ASSERT (utimecmp (BASE "link", &st1, &st3, 0) <= 0);
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if (check_ctime)
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ASSERT (ctime_compare (&st2, &st3) < 0);
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nap ();
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ts[0].tv_nsec = 0;
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ts[1].tv_nsec = UTIME_OMIT;
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ASSERT (func (BASE "link", ts) == 0);
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ASSERT (lstat (BASE "link", &st2) == 0);
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if (check_atime_on_symlinks)
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{
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ASSERT (st2.st_atime == BILLION);
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ASSERT (get_stat_atime_ns (&st2) == 0);
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}
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ASSERT (st3.st_mtime == st2.st_mtime);
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ASSERT (get_stat_mtime_ns (&st3) == get_stat_mtime_ns (&st2));
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if (check_ctime > 0)
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ASSERT (ctime_compare (&st3, &st2) < 0);
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}
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/* Symlink to directory. */
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ASSERT (unlink (BASE "link") == 0);
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ASSERT (symlink (BASE "dir", BASE "link") == 0);
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ASSERT (mkdir (BASE "dir", 0700) == 0);
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{
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struct timespec ts[2];
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ts[0].tv_sec = Y2K;
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ts[0].tv_nsec = 0;
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ts[1] = ts[0];
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ASSERT (func (BASE "link/", ts) == 0);
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}
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/* On cygwin 1.5, stat() changes atime of directories, so only check
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mtime. */
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ASSERT (stat (BASE "dir", &st1) == 0);
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ASSERT (st1.st_mtime == Y2K);
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ASSERT (lstat (BASE "link", &st1) == 0);
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if (check_atime)
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ASSERT (st1.st_atime != Y2K);
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ASSERT (st1.st_mtime != Y2K);
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ASSERT (func (BASE "link", NULL) == 0);
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ASSERT (stat (BASE "dir", &st1) == 0);
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ASSERT (st1.st_mtime == Y2K);
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ASSERT (lstat (BASE "link", &st1) == 0);
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if (check_atime)
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ASSERT (st1.st_atime != Y2K);
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ASSERT (st1.st_mtime != Y2K);
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/* Cleanup. */
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ASSERT (rmdir (BASE "dir") == 0);
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ASSERT (unlink (BASE "link") == 0);
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return 0;
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}
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