#include <stdio.h>
#include <string.h>
#include <stdint.h>
#include <time.h>
typedef struct {
  uint8_t octet1;
  uint8_t octet2;
  uint8_t octet3;
  uint8_t octet4;
} quartet;
int64_t millis()
{
    struct timespec now;
    timespec_get(&now, TIME_UTC);
    return ((int64_t) now.tv_sec) * 1000 + ((int64_t) now.tv_nsec) / 1000000;
}