101 static struct in_addr prefix2mask(unsigned int prefix)  in prefix2mask()
103 	struct in_addr mask;  in prefix2mask()
119 static struct in_addr calc_network(const struct in_addr *ip,  in calc_network()
120 	struct in_addr *mask)  in calc_network()
122 	struct in_addr network;  in calc_network()
130 static int is_in_subnet_ipv4(const struct in_addr *network,  in is_in_subnet_ipv4()
131 	const struct in_addr *mask, const struct in_addr *ip)  in is_in_subnet_ipv4()
157 	struct in_addr mask = prefix2mask(prefix);  in get_ipv4_netmask()
199 static char *get_ipv4_broadcast(struct in_addr ip, unsigned int prefix)  in get_ipv4_broadcast()
201 	struct in_addr mask = prefix2mask(prefix);  in get_ipv4_broadcast()
202 	struct in_addr broadcast;  in get_ipv4_broadcast()
219 static char *get_ipv4_net16_unused(const struct in_addr *ip,  in get_ipv4_net16_unused()
222 	struct in_addr mask, network;  in get_ipv4_net16_unused()
516 	struct in_addr lip, rip;  in get_ipv4_info()
591 	struct in_addr ip;  in main()