/* Internal definitions and declarations for UTMP functions. Copyright (C) 1996, 2000, 2002, 2004 Free Software Foundation, Inc. This file is part of the GNU C Library. Contributed by Ulrich Drepper <drepper@cygnus.com> and Paul Janzen <pcj@primenet.com>, 1996. The GNU C Library is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 2.1 of the License, or (at your option) any later version. The GNU C Library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details. You should have received a copy of the GNU Lesser General Public License along with the GNU C Library; if not, see <http://www.gnu.org/licenses/>. */ #ifndef _UTMP_PRIVATE_H #define _UTMP_PRIVATE_H 1 #include <utmp.h> #include <bits/libc-lock.h> /* The structure describing the functions in a backend. */ struct utfuncs { int (*setutent) (void); int (*getutent_r) (struct utmp *, struct utmp **); int (*getutid_r) (const struct utmp *, struct utmp *, struct utmp **); int (*getutline_r) (const struct utmp *, struct utmp *, struct utmp **); struct utmp *(*pututline) (const struct utmp *); void (*endutent) (void); int (*updwtmp) (const char *, const struct utmp *); }; /* The tables from the services. */ extern const struct utfuncs __libc_utmp_file_functions attribute_hidden; extern const struct utfuncs __libc_utmp_unknown_functions attribute_hidden; /* Currently selected backend. */ extern const struct utfuncs *__libc_utmp_jump_table attribute_hidden; /* Current file name. */ extern const char *__libc_utmp_file_name attribute_hidden; /* Locks access to the global data. */ __libc_lock_define (extern, __libc_utmp_lock attribute_hidden) #endif /* utmp-private.h */