Differential D1426 Diff 3239 lib/libc/sys/futimens.c

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lib/libc/sys/futimens.c

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				/*-
				* 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 "namespace.h"
				#include <sys/stat.h>

				#include <errno.h>
				#include <fcntl.h>
				#include <time.h>
				#include "un-namespace.h"

				#include "libc_private.h"

				int
				futimens(int fd, const struct timespec times[2])
				{
				struct timeval now, tv[2], *tvp;
				struct stat sb;

				if (__getosreldate() >= 1100055)
				return (__sys_futimens(fd, times));

				pluknetUnsubmitted Not Done Inline Actions I do not remember such precedents that we support older kernel (also utimensat). As I understand this is done for portmgr purposes? So, just a remark. pluknet: I do not remember such precedents that we support older kernel (also utimensat). As I…
				delphijUnsubmitted Not Done Inline Actions I think this is good: especially if we modify existing base system applications to use futimens(2) -- some users would do 'make installkernel installworld' instead of rebooting and installing world, while they should. I have been doing it for ZFS ioctl's for some while by the way. delphij: I think this is good: especially if we modify existing base system applications to use futimens…
				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_atim.tv_sec;
				tv[0].tv_usec = sb.st_atim.tv_nsec / 1000;
				}
				if (times[1].tv_nsec == UTIME_OMIT) {
				tv[1].tv_sec = sb.st_mtim.tv_sec;
				tv[1].tv_usec = sb.st_mtim.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));
				}