108 struct irs_ho {  struct
110 	void		(*close) __P((struct irs_ho *));  argument
111 	struct hostent *(*byname) __P((struct irs_ho *, const char *));  argument
112 	struct hostent *(*byname2) __P((struct irs_ho *, const char *, int));  argument
113 	struct hostent *(*byaddr) __P((struct irs_ho *,  argument
115 	struct hostent *(*next) __P((struct irs_ho *));  argument
116 	void		(*rewind) __P((struct irs_ho *));  argument
117 	void		(*minimize) __P((struct irs_ho *));  argument
118 	struct __res_state * (*res_get) __P((struct irs_ho *));  argument
119 	void		(*res_set) __P((struct irs_ho *, res_state,  argument
121 	struct addrinfo *(*addrinfo) __P((struct irs_ho *, const char *,  argument