Function getutimes

freebsd/kern/vfs_syscalls.c:3045–3072

* Common implementation code for utimes(), lutimes(), and futimes(). */

 * Common implementation code for utimes(), lutimes(), and futimes().
 */
static int
getutimes(const struct timeval *usrtvp, enum uio_seg tvpseg,
    struct timespec *tsp)
{
	struct timeval tv[2];
	const struct timeval *tvp;
	int error;

	if (usrtvp == NULL) {
		vfs_timestamp(&tsp[0]);
		tsp[1] = tsp[0];
	} else {
		if (tvpseg == UIO_SYSSPACE) {
			tvp = usrtvp;
		} else {
			if ((error = copyin(usrtvp, tv, sizeof(tv))) != 0)
				return (error);
			tvp = tv;
		}

		if (tvp[0].tv_usec < 0 || tvp[0].tv_usec >= 1000000 ||
		    tvp[1].tv_usec < 0 || tvp[1].tv_usec >= 1000000)
			return (EINVAL);
		TIMEVAL_TO_TIMESPEC(&tvp[0], &tsp[0]);
		TIMEVAL_TO_TIMESPEC(&tvp[1], &tsp[1]);
	}
	return (0);
}

/*
 * Common implementation code for futimens(), utimensat().