-extern int afp_login __P((AFPObj *, char *, int, char *, int *));
-extern int afp_login_ext __P((AFPObj *, char *, unsigned int, char *, unsigned int *));
-extern int afp_logincont __P((AFPObj *, char *, int, char *, int *));
-extern int afp_changepw __P((AFPObj *, char *, int, char *, int *));
-extern int afp_logout __P((AFPObj *, char *, int, char *, int *));
-extern int afp_getuserinfo __P((AFPObj *, char *, int, char *, int *));
-extern int afp_getsession __P((AFPObj *, char *, unsigned int, char *, unsigned int *));
-extern int afp_disconnect __P((AFPObj *, char *, int, char *, int *));
-extern int afp_zzz __P((AFPObj *, char *, unsigned int, char *, unsigned int *));
+int afp_login (AFPObj *obj, char *ibuf, size_t ibuflen, char *rbuf, size_t *rbuflen);
+int afp_login_ext (AFPObj *obj, char *ibuf, size_t ibuflen, char *rbuf, size_t *rbuflen);
+int afp_logincont (AFPObj *obj, char *ibuf, size_t ibuflen, char *rbuf, size_t *rbuflen);
+int afp_changepw (AFPObj *obj, char *ibuf, size_t ibuflen, char *rbuf, size_t *rbuflen);
+int afp_logout (AFPObj *obj, char *ibuf, size_t ibuflen, char *rbuf, size_t *rbuflen);
+int afp_getuserinfo (AFPObj *obj, char *ibuf, size_t ibuflen, char *rbuf, size_t *rbuflen);
+int afp_getsession (AFPObj *obj, char *ibuf, size_t ibuflen, char *rbuf, size_t *rbuflen);
+int afp_disconnect (AFPObj *obj, char *ibuf, size_t ibuflen, char *rbuf, size_t *rbuflen);
+int afp_zzz (AFPObj *obj, char *ibuf, size_t ibuflen, char *rbuf, size_t *rbuflen);