--- /dev/null
+/* Set file access and modification times.
+
+ Copyright (C) 2009 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 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 <http://www.gnu.org/licenses/>. */
+
+/* Written by Eric Blake. */
+
+/* derived from a function in utimens.c */
+
+#include <config.h>
+
+#include "utimens.h"
+
+#include <errno.h>
+#include <fcntl.h>
+#include <sys/stat.h>
+
+/* Set the access and modification time stamps of FD (a.k.a. FILE) to be
+ TIMESPEC[0] and TIMESPEC[1], respectively; relative to directory DIR.
+ FD must be either negative -- in which case it is ignored --
+ or a file descriptor that is open on FILE.
+ If FD is nonnegative, then FILE can be NULL, which means
+ use just futimes (or equivalent) instead of utimes (or equivalent),
+ and fail if on an old system without futimes (or equivalent).
+ If TIMESPEC is null, set the time stamps to the current time.
+ Return 0 on success, -1 (setting errno) on failure. */
+
+int
+fdutimensat (int dir, char const *file, int fd, struct timespec const ts[2])
+{
+ int result = 1;
+ if (0 <= fd)
+ result = futimens (fd, ts);
+ if (file && (fd < 0 || (result == -1 && errno == ENOSYS)))
+ result = utimensat (dir, file, ts, 0);
+ if (result == 1)
+ {
+ errno = EBADF;
+ result = -1;
+ }
+ return result;
+}
--- /dev/null
+/* Tests of fdutimensat.
+ Copyright (C) 2009 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 <http://www.gnu.org/licenses/>. */
+
+/* Written by Eric Blake <ebb9@byu.net>, 2009. */
+
+#include <config.h>
+
+#include "utimens.h"
+
+#include <fcntl.h>
+#include <stdbool.h>
+#include <stdio.h>
+#include <stdlib.h>
+
+#define ASSERT(expr) \
+ do \
+ { \
+ if (!(expr)) \
+ { \
+ fprintf (stderr, "%s:%d: assertion failed\n", __FILE__, __LINE__); \
+ fflush (stderr); \
+ abort (); \
+ } \
+ } \
+ while (0)
+
+#define BASE "test-fdutimensat.t"
+
+#include "test-futimens.h"
+#include "test-lutimens.h"
+#include "test-utimens.h"
+
+static int dfd = AT_FDCWD;
+
+/* Wrap fdutimensat to behave like futimens. */
+static int
+do_futimens (int fd, struct timespec const times[2])
+{
+ return fdutimensat (dfd, NULL, fd, times);
+}
+
+/* Test the use of file descriptors alongside a name. */
+static int
+do_fdutimens (char const *name, struct timespec const times[2])
+{
+ int result;
+ int fd = openat (dfd, name, O_WRONLY);
+ if (fd < 0)
+ fd = openat (dfd, name, O_RDONLY);
+ errno = 0;
+ result = fdutimensat (dfd, name, fd, times);
+ if (0 <= fd)
+ {
+ int saved_errno = errno;
+ close (fd);
+ errno = saved_errno;
+ }
+ return result;
+}
+
+/* Wrap lutimensat to behave like lutimens. */
+static int
+do_lutimens (const char *name, struct timespec const times[2])
+{
+ return lutimensat (dfd, name, times);
+}
+
+/* Wrap fdutimensat to behave like utimens. */
+static int
+do_utimens (const char *name, struct timespec const times[2])
+{
+ return fdutimensat (dfd, name, -1, times);
+}
+
+int
+main ()
+{
+ int result1; /* Skip because of no symlink support. */
+ int result2; /* Skip because of no futimens support. */
+ int result3; /* Skip because of no lutimens support. */
+ int fd;
+
+ /* Clean up any trash from prior testsuite runs. */
+ ASSERT (system ("rm -rf " BASE "*") == 0);
+
+ /* Basic tests. */
+ result1 = test_utimens (do_utimens, true);
+ ASSERT (test_utimens (do_fdutimens, false) == result1);
+ result2 = test_futimens (do_futimens, result1 == 0);
+ result3 = test_lutimens (do_lutimens, (result1 + result2) == 0);
+ /* We expect 0/0, 0/77, or 77/77, but not 77/0. */
+ ASSERT (result1 <= result3);
+ dfd = open (".", O_RDONLY);
+ ASSERT (0 <= dfd);
+ ASSERT (test_utimens (do_utimens, false) == result1);
+ ASSERT (test_utimens (do_fdutimens, false) == result1);
+ ASSERT (test_futimens (do_futimens, false) == result2);
+ ASSERT (test_lutimens (do_lutimens, false) == result3);
+
+ /* Directory relative tests. */
+ ASSERT (mkdir (BASE "dir", 0700) == 0);
+ ASSERT (chdir (BASE "dir") == 0);
+ fd = creat ("file", 0600);
+ ASSERT (0 <= fd);
+ errno = 0;
+ ASSERT (fdutimensat (fd, ".", AT_FDCWD, NULL) == -1);
+ ASSERT (errno == ENOTDIR);
+ {
+ struct timespec ts[2] = { { Y2K, 0 }, { Y2K, 0 } };
+ struct stat st;
+ ASSERT (fdutimensat (dfd, BASE "dir/file", fd, ts) == 0);
+ ASSERT (stat ("file", &st) == 0);
+ ASSERT (st.st_atime == Y2K);
+ ASSERT (get_stat_atime_ns (&st) == 0);
+ ASSERT (st.st_mtime == Y2K);
+ ASSERT (get_stat_mtime_ns (&st) == 0);
+ }
+ ASSERT (close (fd) == 0);
+ ASSERT (close (dfd) == 0);
+ errno = 0;
+ ASSERT (fdutimensat (dfd, ".", -1, NULL) == -1);
+ ASSERT (errno == EBADF);
+
+ /* Cleanup. */
+ ASSERT (chdir ("..") == 0);
+ ASSERT (unlink (BASE "dir/file") == 0);
+ ASSERT (rmdir (BASE "dir") == 0);
+ return result1 | result2 | result3;
+}
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