xref: /freebsd/lib/libc/gen/utxdb.h (revision aa1a8ff2d6dbc51ef058f46f3db5a8bb77967145)
1 /*-
2  * SPDX-License-Identifier: BSD-2-Clause
3  *
4  * Copyright (c) 2010 Ed Schouten <ed@FreeBSD.org>
5  * All rights reserved.
6  *
7  * Redistribution and use in source and binary forms, with or without
8  * modification, are permitted provided that the following conditions
9  * are met:
10  * 1. Redistributions of source code must retain the above copyright
11  *    notice, this list of conditions and the following disclaimer.
12  * 2. Redistributions in binary form must reproduce the above copyright
13  *    notice, this list of conditions and the following disclaimer in the
14  *    documentation and/or other materials provided with the distribution.
15  *
16  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
17  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
20  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26  * SUCH DAMAGE.
27  */
28 
29 #ifndef _UTXDB_H_
30 #define	_UTXDB_H_
31 
32 #include <stdint.h>
33 
34 #define	_PATH_UTX_ACTIVE	"/var/run/utx.active"
35 #define	_PATH_UTX_LASTLOGIN	"/var/log/utx.lastlogin"
36 #define	_PATH_UTX_LOG		"/var/log/utx.log"
37 
38 /*
39  * Entries in struct futx are ordered by how often they are used.  In
40  * utx.log only entries will be written until the last non-zero byte,
41  * which means we want to put the hostname at the end. Most primitive
42  * records only store a ut_type and ut_tv, which means we want to store
43  * those at the front.
44  */
45 
46 struct utmpx;
47 
48 struct futx {
49 	uint8_t		fu_type;
50 	uint64_t	fu_tv;
51 	char		fu_id[8];
52 	uint32_t	fu_pid;
53 	char		fu_user[32];
54 	char		fu_line[16];
55 	char		fu_host[128];
56 } __packed;
57 
58 void	utx_to_futx(const struct utmpx *, struct futx *);
59 struct utmpx *futx_to_utx(const struct futx *);
60 
61 #endif /* !_UTXDB_H_ */
62