int resolvehostport(struct hostportres *hp, int socktype, uint8_t passive);
int resolvehostports(struct list *hostports, int socktype);
struct addrinfo *resolvepassiveaddrinfo(char *hostport, char *default_port, int socktype);
int resolvehostport(struct hostportres *hp, int socktype, uint8_t passive);
int resolvehostports(struct list *hostports, int socktype);
struct addrinfo *resolvepassiveaddrinfo(char *hostport, char *default_port, int socktype);