Hosts Map Type

The following is the required prototype for a user-defined hosts map class:

  void * ho_pvtinit();
  void ho_close(void *private);
  struct hostent * ho_byname(void *private, const char *name);
  struct hostent * ho_byname2(void *private, const char *name, int af);
  struct hostent * ho_byaddr(void *private, const void *addr, size_t len, int af);
  struct hostent * ho_next(void *private);
  void ho_rewind(void *private);
  void ho_minimize(void *private);