github.com/afumu/libc@v0.0.6/musl/src/linux/settimeofday.c (about)

     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  }