10 #define IP_MULTICAST_IF 2
11 #define IP_MULTICAST_TTL 3
12 #define IP_ADD_MEMBERSHIP 5
16 struct in_addr imr_multiaddr;
17 struct in_addr imr_interface;
20 in_addr_t inet_network(const char *cp);
22 const char *inet_ntop(int af, const void *restrict src,
23 char *restrict dst, socklen_t size);
24 int inet_pton(int af, const char *restrict src, void *restrict dst);
26 #endif /* ARPA_INET_H */