Declare all three function jump tables.
int (*getutline_r) (const struct utmp *, struct utmp *, struct utmp **);
struct utmp *(*pututline) (const struct utmp *);
void (*endutent) (void);
int (*getutline_r) (const struct utmp *, struct utmp *, struct utmp **);
struct utmp *(*pututline) (const struct utmp *);
void (*endutent) (void);
- int (*utmpname) (const char *);
-
+ int (*updwtmp) (const char *, const struct utmp *);
+/* The tables from the services. */
+extern struct utfuncs __libc_utmp_file_functions;
+extern struct utfuncs __libc_utmp_daemon_functions;
+extern struct utfuncs __libc_utmp_unknown_functions;
+
+/* Currently selected backend. */
+extern struct utfuncs *__libc_utmp_jump_table;
+
+/* Current file name. */
+extern const char *__libc_utmp_file_name;
+
#endif /* utmp-private.h */
#endif /* utmp-private.h */