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1 /* Internal definitions and declarations for UTMP functions.
2 Copyright (C) 1996, 2000 Free Software Foundation, Inc.
3 This file is part of the GNU C Library.
4 Contributed by Ulrich Drepper <drepper@cygnus.com>
5 and Paul Janzen <pcj@primenet.com>, 1996.
7 The GNU C Library is free software; you can redistribute it and/or
8 modify it under the terms of the GNU Library General Public License as
9 published by the Free Software Foundation; either version 2 of the
10 License, or (at your option) any later version.
12 The GNU C Library is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 Library General Public License for more details.
17 You should have received a copy of the GNU Library General Public
18 License along with the GNU C Library; see the file COPYING.LIB. If not,
19 write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
20 Boston, MA 02111-1307, USA. */
22 #ifndef _UTMP_PRIVATE_H
23 #define _UTMP_PRIVATE_H 1
25 #include <utmp.h>
27 /* The structure describing the functions in a backend. */
28 struct utfuncs
30 int (*setutent) (void);
31 int (*getutent_r) (struct utmp *, struct utmp **);
32 int (*getutid_r) (const struct utmp *, struct utmp *, struct utmp **);
33 int (*getutline_r) (const struct utmp *, struct utmp *, struct utmp **);
34 struct utmp *(*pututline) (const struct utmp *);
35 void (*endutent) (void);
36 int (*updwtmp) (const char *, const struct utmp *);
39 /* The tables from the services. */
40 extern struct utfuncs __libc_utmp_file_functions;
41 extern struct utfuncs __libc_utmp_unknown_functions;
43 /* Currently selected backend. */
44 extern struct utfuncs *__libc_utmp_jump_table;
46 /* Current file name. */
47 extern const char *__libc_utmp_file_name;
49 #endif /* utmp-private.h */