1#define _BSD_SOURCE
 2#include <sys/time.h>
 3#include <time.h>
 4#include <errno.h>
 5#include "syscall.h"
 6
 7int settimeofday(const struct timeval *tv, const struct timezone *tz)
 8{
 9	if (!tv) return 0;
10	if (tv->tv_usec >= 1000000ULL) return __syscall_ret(-EINVAL);
11	return clock_settime(CLOCK_REALTIME, &((struct timespec){
12		.tv_sec = tv->tv_sec, .tv_nsec = tv->tv_usec * 1000}));
13}