-#include "include/ipaddr.h"
-#include <sys/socket.h>
#include <arpa/inet.h>
+#include <ifaddrs.h>
#include <stdlib.h>
#include <string.h>
+#if defined(__FreeBSD__)
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <netinet/in.h>
+#endif
+#include "include/ipaddr.h"
static void netmask_ipv4(const struct in_addr *addr,
unsigned int prefix_len,