include/utxdb.h

   1 /*-
   2  * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
   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  * $FreeBSD$
  29  */
  30
  31 #ifndef _UTXDB_H_
  32 #define _UTXDB_H_
  33
  34 #include <stdint.h>
  35
  36 #define _PATH_UTX_ACTIVE        "/var/run/utx.active"
  37 #define _PATH_UTX_LASTLOGIN     "/var/log/utx.lastlogin"
  38 #define _PATH_UTX_LOG           "/var/log/utx.log"
  39
  40 /*
  41  * Entries in struct futx are ordered by how often they are used.  In
  42  * utx.log only entries will be written until the last non-zero byte,
  43  * which means we want to put the hostname at the end. Most primitive
  44  * records only store a ut_type and ut_tv, which means we want to store
  45  * those at the front.
  46  */
  47
  48 struct utmpx;
  49
  50 struct futx {
  51         uint8_t         fu_type;
  52         uint64_t        fu_tv;
  53         char            fu_id[8];
  54         uint32_t        fu_pid;
  55         char            fu_user[32];
  56         char            fu_line[16];
  57         char            fu_host[128];
  58 } __packed;
  59
  60 void    utx_to_futx(const struct utmpx *, struct futx *);
  61 struct utmpx *futx_to_utx(const struct futx *);
  62
  63 #endif /* !_UTXDB_H_ */