-uerr_t ftp_response PARAMS ((struct rbuf *, char **));
-uerr_t ftp_login PARAMS ((struct rbuf *, const char *, const char *));
-uerr_t ftp_port PARAMS ((struct rbuf *));
-uerr_t ftp_pasv PARAMS ((struct rbuf *, ip_address *, unsigned short *));
-#ifdef INET6
-uerr_t ftp_epsv PARAMS ((struct rbuf *, ip_address *, unsigned short *,
- char *));
+uerr_t ftp_response PARAMS ((int, char **));
+uerr_t ftp_login PARAMS ((int, const char *, const char *));
+uerr_t ftp_port PARAMS ((int, int *));
+uerr_t ftp_pasv PARAMS ((int, ip_address *, int *));
+#ifdef ENABLE_IPV6
+uerr_t ftp_lprt PARAMS ((int, int *));
+uerr_t ftp_lpsv PARAMS ((int, ip_address *, int *));
+uerr_t ftp_eprt PARAMS ((int, int *));
+uerr_t ftp_epsv PARAMS ((int, ip_address *, int *));
+#endif
+uerr_t ftp_type PARAMS ((int, int));
+uerr_t ftp_cwd PARAMS ((int, const char *));
+uerr_t ftp_retr PARAMS ((int, const char *));
+uerr_t ftp_rest PARAMS ((int, long));
+uerr_t ftp_list PARAMS ((int, const char *));
+uerr_t ftp_syst PARAMS ((int, enum stype *));
+uerr_t ftp_pwd PARAMS ((int, char **));
+uerr_t ftp_size PARAMS ((int, const char *, long int *));
+
+#ifdef USE_OPIE
+const char *skey_response PARAMS ((int, const char *, const char *));