105 lines
2.3 KiB
C
105 lines
2.3 KiB
C
/* Copyright (C) 1996 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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Contributed by Ulrich Drepper <drepper@cygnus.com>
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and Paul Janzen <pcj@primenet.com>, 1996.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Library General Public License as
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published by the Free Software Foundation; either version 2 of the
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License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Library General Public License for more details.
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You should have received a copy of the GNU Library General Public
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License along with the GNU C Library; see the file COPYING.LIB. If not,
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write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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Boston, MA 02111-1307, USA. */
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#include <assert.h>
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#include <db.h>
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#include <fcntl.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <utmp.h>
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#include <sys/stat.h>
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#include "utmp-private.h"
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/* This is the default name. */
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static const char default_file_name[] = _PATH_UTMP_DB;
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/* Current file name. */
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static const char *file_name = (const char *) default_file_name;
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/* Descriptor for database. */
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#if 0
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/* XXX One day this will become meaningful again. */
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static DB *db_fd;
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static char last_date[16];
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#endif
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/* Our local functions. */
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static int setutent_db (int reset);
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static void endutent_db (void);
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static int utmpname_db (const char *name);
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/* The jump table for the local functions. */
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struct utfuncs __libc_utmp_db_functions =
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{
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setutent_db,
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NULL,
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NULL,
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NULL,
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NULL,
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endutent_db,
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utmpname_db
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};
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static int
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setutent_db (int reset)
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{
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return 0;
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}
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static void
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endutent_db (void)
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{
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}
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static int
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utmpname_db (const char *name)
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{
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if (strcmp (name, file_name) != 0)
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{
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if (strcmp (name, default_file_name) == 0)
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{
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if (file_name != default_file_name)
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free ((char *) file_name);
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file_name = default_file_name;
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}
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else
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{
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char *new_name = __strdup (name);
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if (new_name == NULL)
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/* Out of memory. */
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return -1;
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if (file_name != default_file_name)
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free ((char *) file_name);
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file_name = new_name;
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}
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}
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return 0;
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}
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