__res_state
void __h_errno_set(struct __res_state *, int);
typedef struct __res_state *res_state;
extern struct __res_state *__res_get_state(void);
extern void __res_put_state(struct __res_state *);
extern struct __res_state *__res_state(void);
#define _res (*__res_state())
struct __res_state; /*%< forward */
extern struct __res_state _nres;
struct __res_state _res
extern struct __res_state _nres;
struct __res_state _nres
__weak_alias(__res_state, __res_get_state_nothread)
struct __res_state st_res;
res_state __res_state(void);