#include <arpa/inet.h>
#include <netinet/ip.h>
#include <sys/types.h>
#include <arpa/inet.h>
#include <netinet/ip.h>
#include <sys/types.h>
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
struct icmphdr {
u_int8_t type;
struct icmphdr {
u_int8_t type;