+/*-
+ * Copyright (c) 2015 Jilles Tjoelker
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD$");
+
+#include <sys/stat.h>
+
+#include <errno.h>
+#include <fcntl.h>
+#include <time.h>
+#include <sys/time.h>
+
+#ifndef UTIME_NOW
+#define UTIME_NOW -1
+#endif
+
+#ifndef UTIME_OMIT
+#define UTIME_OMIT -2
+#endif
+int futimens(int fd, const struct timespec times[2]);
+
+int
+futimens(int fd, const struct timespec times[2])
+{
+ struct timeval now, tv[2], *tvp;
+ struct stat sb;
+
+ if (times == NULL || (times[0].tv_nsec == UTIME_NOW &&
+ times[1].tv_nsec == UTIME_NOW))
+ tvp = NULL;
+ else if (times[0].tv_nsec == UTIME_OMIT &&
+ times[1].tv_nsec == UTIME_OMIT)
+ return (0);
+ else {
+ if ((times[0].tv_nsec < 0 || times[0].tv_nsec > 999999999) &&
+ times[0].tv_nsec != UTIME_NOW &&
+ times[0].tv_nsec != UTIME_OMIT) {
+ errno = EINVAL;
+ return (-1);
+ }
+ if ((times[1].tv_nsec < 0 || times[1].tv_nsec > 999999999) &&
+ times[1].tv_nsec != UTIME_NOW &&
+ times[1].tv_nsec != UTIME_OMIT) {
+ errno = EINVAL;
+ return (-1);
+ }
+ tv[0].tv_sec = times[0].tv_sec;
+ tv[0].tv_usec = times[0].tv_nsec / 1000;
+ tv[1].tv_sec = times[1].tv_sec;
+ tv[1].tv_usec = times[1].tv_nsec / 1000;
+ tvp = tv;
+ if (times[0].tv_nsec == UTIME_OMIT ||
+ times[1].tv_nsec == UTIME_OMIT) {
+ if (fstat(fd, &sb) == -1)
+ return (-1);
+ if (times[0].tv_nsec == UTIME_OMIT) {
+ tv[0].tv_sec = sb.st_atimespec.tv_sec;
+ tv[0].tv_usec = sb.st_atimespec.tv_nsec / 1000;
+ }
+ if (times[1].tv_nsec == UTIME_OMIT) {
+ tv[1].tv_sec = sb.st_mtimespec.tv_sec;
+ tv[1].tv_usec = sb.st_mtimespec.tv_nsec / 1000;
+ }
+ }
+ if (times[0].tv_nsec == UTIME_NOW ||
+ times[1].tv_nsec == UTIME_NOW) {
+ if (gettimeofday(&now, NULL) == -1)
+ return (-1);
+ if (times[0].tv_nsec == UTIME_NOW)
+ tv[0] = now;
+ if (times[1].tv_nsec == UTIME_NOW)
+ tv[1] = now;
+ }
+ }
+ return (futimes(fd, tvp));
+}
projects / apple / file_cmds.git / commitdiff
