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/* Test of file timestamp modification functions.
Copyright (C) 2009-2023 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 "test-utimens-common.h"
/* This file is designed to test both lutimens(a,b) and
utimensat(AT_FDCWD,a,b,AT_SYMLINK_NOFOLLOW). FUNC is the function
to test. Assumes that BASE and ASSERT are already defined. If
PRINT, warn before skipping tests with status 77. */
static int
test_lutimens (int (*func) (char const *, struct timespec const *), bool print)
{
int result;
int saved_errno;
struct stat st1;
struct stat st2;
bool atime_supported = true;
/* Non-symlinks should be handled just like utimens. */
errno = 0;
ASSERT (func ("no_such", NULL) == -1);
ASSERT (errno == ENOENT);
errno = 0;
ASSERT (func ("no_such/", NULL) == -1);
ASSERT (errno == ENOENT || errno == ENOTDIR);
errno = 0;
ASSERT (func ("", NULL) == -1);
ASSERT (errno == ENOENT);
ASSERT (close (creat (BASE "file", 0600)) == 0);
ASSERT (stat (BASE "file", &st1) == 0);
ASSERT (st1.st_atime != Y2K);
ASSERT (st1.st_mtime != Y2K);
{
struct timespec ts[2];
ts[0].tv_sec = Y2K;
ts[0].tv_nsec = 0;
ts[1] = ts[0];
errno = 0;
ASSERT (func (BASE "file/", ts) == -1);
ASSERT (errno == ENOTDIR);
ASSERT (stat (BASE "file", &st2) == 0);
ASSERT (st1.st_atime == st2.st_atime);
ASSERT (st1.st_mtime == st2.st_mtime);
}
{
struct timespec ts[2];
ts[0].tv_sec = Y2K;
ts[0].tv_nsec = 0;
ts[1] = ts[0];
nap ();
ASSERT (func (BASE "file", ts) == 0);
}
ASSERT (stat (BASE "file", &st2) == 0);
ASSERT (st2.st_atime == Y2K);
ASSERT (st2.st_mtime == Y2K);
if (check_ctime)
ASSERT (ctime_compare (&st1, &st2) < 0);
/* Play with symlink timestamps. */
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;
}
errno = 0;
result = func (BASE "link", NULL);
saved_errno = errno;
/* Make sure we did not reference through link by accident. */
ASSERT (stat (BASE "file", &st1) == 0);
ASSERT (st1.st_atime == Y2K);
ASSERT (st1.st_mtime == Y2K);
ASSERT (lstat (BASE "link", &st1) == 0);
ASSERT (st1.st_atime != Y2K);
ASSERT (st1.st_mtime != Y2K);
ASSERT (unlink (BASE "file") == 0);
if (result == -1 && saved_errno == ENOSYS)
{
ASSERT (unlink (BASE "link") == 0);
if (print)
fputs ("skipping test: "
"setting symlink time not supported on this file system\n",
stderr);
return 77;
}
ASSERT (!result);
ASSERT (lstat (BASE "link", &st1) == 0);
/* On cygwin, lstat() changes atime of symlinks, so that lutimens
can only effectively modify mtime. */
nap ();
ASSERT (lstat (BASE "link", &st2) == 0);
if (st1.st_atime != st2.st_atime
|| get_stat_atime_ns (&st1) != get_stat_atime_ns (&st2))
atime_supported = false;
ASSERT (st1.st_ctime == st2.st_ctime);
ASSERT (get_stat_ctime_ns (&st1) == get_stat_ctime_ns (&st2));
/* Invalid arguments. */
{
struct timespec ts[2];
ts[0].tv_sec = Y2K;
ts[0].tv_nsec = UTIME_BOGUS_POS;
ts[1].tv_sec = Y2K;
ts[1].tv_nsec = 0;
errno = 0;
ASSERT (func (BASE "link", ts) == -1);
ASSERT (errno == EINVAL);
}
{
struct timespec ts[2];
ts[0].tv_sec = Y2K;
ts[0].tv_nsec = 0;
ts[1].tv_sec = Y2K;
ts[1].tv_nsec = UTIME_BOGUS_NEG;
errno = 0;
ASSERT (func (BASE "link", ts) == -1);
ASSERT (errno == EINVAL);
}
ASSERT (lstat (BASE "link", &st2) == 0);
if (atime_supported)
{
ASSERT (st1.st_atime == st2.st_atime);
ASSERT (get_stat_atime_ns (&st1) == get_stat_atime_ns (&st2));
}
ASSERT (utimecmp (BASE "link", &st1, &st2, 0) == 0);
/* Set both times. */
{
struct timespec ts[2];
ts[0].tv_sec = Y2K;
ts[0].tv_nsec = BILLION / 2 - 1;
ts[1].tv_sec = Y2K;
ts[1].tv_nsec = BILLION - 1;
nap ();
ASSERT (func (BASE "link", ts) == 0);
ASSERT (lstat (BASE "link", &st2) == 0);
if (atime_supported)
{
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);
}
/* Play with UTIME_OMIT, UTIME_NOW. */
{
struct stat st3;
struct timespec ts[2];
ts[0].tv_sec = BILLION;
ts[0].tv_nsec = UTIME_OMIT;
ts[1].tv_sec = 0;
ts[1].tv_nsec = UTIME_NOW;
nap ();
ASSERT (func (BASE "link", ts) == 0);
ASSERT (lstat (BASE "link", &st3) == 0);
if (atime_supported)
{
ASSERT (st3.st_atime == Y2K);
ASSERT (0 <= get_stat_atime_ns (&st3));
ASSERT (get_stat_atime_ns (&st3) < BILLION / 2);
}
ASSERT (utimecmp (BASE "link", &st1, &st3, 0) <= 0);
if (check_ctime)
ASSERT (ctime_compare (&st2, &st3) < 0);
nap ();
ts[0].tv_nsec = 0;
ts[1].tv_nsec = UTIME_OMIT;
ASSERT (func (BASE "link", ts) == 0);
ASSERT (lstat (BASE "link", &st2) == 0);
if (atime_supported)
{
ASSERT (st2.st_atime == BILLION);
ASSERT (get_stat_atime_ns (&st2) == 0);
}
ASSERT (st3.st_mtime == st2.st_mtime);
ASSERT (get_stat_mtime_ns (&st3) == get_stat_mtime_ns (&st2));
if (check_ctime > 0)
ASSERT (ctime_compare (&st3, &st2) < 0);
}
/* Symlink to directory. */
ASSERT (unlink (BASE "link") == 0);
ASSERT (symlink (BASE "dir", BASE "link") == 0);
ASSERT (mkdir (BASE "dir", 0700) == 0);
{
struct timespec ts[2];
ts[0].tv_sec = Y2K;
ts[0].tv_nsec = 0;
ts[1] = ts[0];
ASSERT (func (BASE "link/", ts) == 0);
}
/* On cygwin 1.5, stat() changes atime of directories, so only check
mtime. */
ASSERT (stat (BASE "dir", &st1) == 0);
ASSERT (st1.st_mtime == Y2K);
ASSERT (lstat (BASE "link", &st1) == 0);
ASSERT (st1.st_atime != Y2K);
ASSERT (st1.st_mtime != Y2K);
ASSERT (func (BASE "link", NULL) == 0);
ASSERT (stat (BASE "dir", &st1) == 0);
ASSERT (st1.st_mtime == Y2K);
ASSERT (lstat (BASE "link", &st1) == 0);
ASSERT (st1.st_atime != Y2K);
ASSERT (st1.st_mtime != Y2K);
/* Cleanup. */
ASSERT (rmdir (BASE "dir") == 0);
ASSERT (unlink (BASE "link") == 0);
return 0;
}
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