@@ -71,6 +71,7 @@ uint32_t ntohl(uint32_t);
uint16_t ntohs(uint16_t);
#define IPPROTO_IP 0
+#define IPPROTO_HOPOPTS 0
#define IPPROTO_ICMP 1
#define IPPROTO_IGMP 2
#define IPPROTO_IPIP 4
Rich Felker