+int nfs_gethostbyname(const char *, struct sockaddr_in *);
+int nfs_name_to_address(const char *, const sa_family_t,
+ struct sockaddr *, socklen_t *);
+int get_client_address(struct sockaddr_in *, struct sockaddr_in *);
+int nfs_call_umount(clnt_addr_t *, dirpath *);
+int clnt_ping(struct sockaddr_in *, const unsigned long,
+ const unsigned long, const unsigned int,
+ struct sockaddr_in *);