1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
|
/* Copyright (C) 1996 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 Library General Public License as
published by the Free Software Foundation; either version 2 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
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with the GNU C Library; see the file COPYING.LIB. If not,
write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */
#include <assert.h>
#include <db.h>
#include <fcntl.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <utmp.h>
#include <sys/stat.h>
#include "utmp-private.h"
/* This is the default name. */
static const char default_file_name[] = _PATH_UTMP_DB;
/* Current file name. */
static const char *file_name = (const char *) default_file_name;
/* Descriptor for database. */
#if 0
/* XXX One day this will become menaingful again. */
static DB *db_fd;
static char last_date[16];
#endif
/* Our local functions. */
static int setutent_db (int reset);
static void endutent_db (void);
static int utmpname_db (const char *name);
/* The jump table for the local functions. */
struct utfuncs __libc_utmp_db_functions =
{
setutent_db,
NULL,
NULL,
NULL,
NULL,
endutent_db,
utmpname_db
};
static int
setutent_db (int reset)
{
return 0;
}
static void
endutent_db (void)
{
}
static int
utmpname_db (const char *name)
{
if (strcmp (name, file_name) != 0)
{
if (strcmp (name, default_file_name) == 0)
{
if (file_name != default_file_name)
free ((char *) file_name);
file_name = default_file_name;
}
else
{
char *new_name = __strdup (name);
if (new_name == NULL)
/* Out of memory. */
return -1;
if (file_name != default_file_name)
free ((char *) file_name);
file_name = new_name;
}
}
return 0;
}
|
