char *addr, ssize_t addrlen, int32_t *netmask);
extern char *parse_url(const char *url,
char *host, ssize_t hostlen, int32_t *port);
char *addr, ssize_t addrlen, int32_t *netmask);
extern char *parse_url(const char *url,
char *host, ssize_t hostlen, int32_t *port);