Res res_open (const char *name);
void res_close (Res r);
char *res_get (Res r, const char *name);
Res res_open (const char *name);
void res_close (Res r);
char *res_get (Res r, const char *name);
void res_put (Res r, const char *name, const char *value);
void res_trav (Res r, const char *prefix,
void (*f)(const char *name, const char *value));
void res_put (Res r, const char *name, const char *value);
void res_trav (Res r, const char *prefix,
void (*f)(const char *name, const char *value));