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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 <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));
}
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