-const char *ftp_curdir(struct ftp *ftp, int whichdir);
-int ftp_num_dirent(struct ftp *ftp, int whichdir);
-struct ftp_dirent *ftp_dirent(struct ftp *ftp, int whichdir, int idx);
+const char *ftp_curdir(struct ftp *ftp);
+int ftp_num_dirent(struct ftp *ftp);
+struct ftp_dirent *ftp_dirent(struct ftp *ftp, int idx);