#include <arpa/inet.h>
#include <stdio.h>

char* inet_ntoa(struct in_addr in) {
  static char buf[16];
  unsigned char* a = (void*)&in;
  snprintf(buf, sizeof buf, "%d.%d.%d.%d", a[0], a[1], a[2], a[3]);
  return buf;
}