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Diffstat (limited to 'gnulib-tests/test-utimens.h')
| -rw-r--r-- | gnulib-tests/test-utimens.h | 184 |
1 files changed, 184 insertions, 0 deletions
diff --git a/gnulib-tests/test-utimens.h b/gnulib-tests/test-utimens.h new file mode 100644 index 0000000..05a9cb2 --- /dev/null +++ b/gnulib-tests/test-utimens.h @@ -0,0 +1,184 @@ +/* Test of file timestamp modification functions. + Copyright (C) 2009-2022 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 utimens(a,b) and + utimensat(AT_FDCWD,a,b,0). 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_utimens (int (*func) (char const *, struct timespec const *), bool print) +{ + struct stat st1; + struct stat st2; + + ASSERT (close (creat (BASE "file", 0600)) == 0); + /* If utimens truncates to worse resolution than the file system + supports, then time can appear to go backwards between now and a + follow-up utimens with UTIME_NOW or a NULL timespec. Use + UTIMECMP_TRUNCATE_SOURCE to compensate, with st1 as the + source. */ + ASSERT (stat (BASE "file", &st1) == 0); + nap (); + ASSERT (func (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 + timespec is determined by the server, but the 'now' timestamp + determined by gettime() (as is done when using UTIME_NOW) 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 gettime() to set both times. */ + struct timespec ts[2]; + gettime (&ts[0]); + ts[1] = ts[0]; + ASSERT (func (BASE "file", ts) == 0); + ASSERT (stat (BASE "file", &st1) == 0); + nap (); + } + + /* Invalid arguments. */ + 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); + { + 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 "file", 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 "file", ts) == -1); + ASSERT (errno == EINVAL); + } + { + 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 || 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 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; + ASSERT (func (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); + } + + /* 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 "file", ts) == 0); + ASSERT (stat (BASE "file", &st3) == 0); + ASSERT (st3.st_atime == Y2K); + ASSERT (0 <= get_stat_atime_ns (&st3)); + ASSERT (get_stat_atime_ns (&st3) < BILLION / 2); + /* See comment above about this utimecmp call. */ + ASSERT (0 <= utimecmp (BASE "file", &st3, &st1, UTIMECMP_TRUNCATE_SOURCE)); + if (check_ctime) + ASSERT (ctime_compare (&st2, &st3) < 0); + nap (); + ts[0].tv_nsec = 0; + ts[1].tv_nsec = UTIME_OMIT; + ASSERT (func (BASE "file", ts) == 0); + ASSERT (stat (BASE "file", &st2) == 0); + 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); + } + + /* 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 (func (BASE "link/", NULL) == -1); + ASSERT (errno == ENOTDIR); + { + struct timespec ts[2]; + ts[0].tv_sec = Y2K; + ts[0].tv_nsec = 0; + ts[1] = ts[0]; + ASSERT (func (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; +} |