settimeofday.c raw

   1  #define _BSD_SOURCE
   2  #include <sys/time.h>
   3  #include <time.h>
   4  #include <errno.h>
   5  #include "syscall.h"
   6  
   7  int 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  }
  14