-extern void add_listener(int port, const char *vaddr_ip, int family, int ssl, int defer_accept, int wsock);
+extern void add_tcp_listener(int port, const char *vaddr_ip, int family, int ssl, int defer_accept, int wsock);
+extern void add_sctp_listener(int port, const char *vaddr_ip1, const char *vaddr_ip2, int ssl, int wsock);