#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));
}