1 /*        $NetBSD: utmpx.h,v 1.18 2021/08/15 00:36:11 gutteridge Exp $           */
2 
3 /*-
4  * Copyright (c) 2002 The NetBSD Foundation, Inc.
5  * All rights reserved.
6  *
7  * This code is derived from software contributed to The NetBSD Foundation
8  * by Christos Zoulas.
9  *
10  * Redistribution and use in source and binary forms, with or without
11  * modification, are permitted provided that the following conditions
12  * are met:
13  * 1. Redistributions of source code must retain the above copyright
14  *    notice, this list of conditions and the following disclaimer.
15  * 2. Redistributions in binary form must reproduce the above copyright
16  *    notice, this list of conditions and the following disclaimer in the
17  *    documentation and/or other materials provided with the distribution.
18  *
19  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
20  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
21  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
23  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
24  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
25  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
26  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
27  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
28  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
29  * POSSIBILITY OF SUCH DAMAGE.
30  */
31 #ifndef   _UTMPX_H_
32 #define   _UTMPX_H_
33 
34 #include <sys/cdefs.h>
35 #include <sys/featuretest.h>
36 #include <sys/socket.h>
37 #include <sys/time.h>
38 
39 #define   _PATH_UTMPX                   "/var/run/utmpx"
40 #define   _PATH_WTMPX                   "/var/log/wtmpx"
41 #define   _PATH_LASTLOGX                "/var/log/lastlogx"
42 #define   _PATH_UTMP_UPDATE   "/usr/libexec/utmp_update"
43 
44 #define _UTX_USERSIZE         32
45 #define _UTX_LINESIZE         32
46 #define   _UTX_IDSIZE         4
47 #define _UTX_HOSTSIZE         256
48 
49 #if defined(_NETBSD_SOURCE)
50 #define UTX_USERSIZE          _UTX_USERSIZE
51 #define UTX_LINESIZE          _UTX_LINESIZE
52 #define   UTX_IDSIZE          _UTX_IDSIZE
53 #define UTX_HOSTSIZE          _UTX_HOSTSIZE
54 #endif
55 
56 #define EMPTY                 0
57 #define RUN_LVL               1
58 #define BOOT_TIME   2
59 #define OLD_TIME    3
60 #define NEW_TIME    4
61 #define INIT_PROCESS          5
62 #define LOGIN_PROCESS         6
63 #define USER_PROCESS          7
64 #define DEAD_PROCESS          8
65 
66 #if defined(_NETBSD_SOURCE)
67 #define ACCOUNTING  9
68 #define SIGNATURE   10
69 #define DOWN_TIME   11
70 
71 /*
72  * Strings placed in the ut_line field to indicate special type entries
73  */
74 #define   RUNLVL_MSG          "run-level %c"
75 #define   BOOT_MSG  "system boot"
76 #define   OTIME_MSG "old time"
77 #define   NTIME_MSG "new time"
78 #define   DOWN_MSG  "system down"
79 #endif
80 
81 /*
82  * The following structure describes the fields of the utmpx entries
83  * stored in _PATH_UTMPX or _PATH_WTMPX. This is not the format the
84  * entries are stored in the files, and application should only access
85  * entries using routines described in getutxent(3).
86  */
87 
88 #define ut_user ut_name
89 #define ut_xtime ut_tv.tv_sec
90 
91 /*
92  * This should be:
93  * 40 - (sizeof(struct timeval) - sizeof(struct { long s; long u; })))
94  * but g++ does not like it, to retain size compatibility with v1.00,
95  * so we do it manually.
96  */
97 #ifdef _LP64
98 #define _UTX_PADSIZE 36
99 #else
100 #define _UTX_PADSIZE 40
101 #endif
102 
103 struct utmpx {
104           char ut_name[_UTX_USERSIZE];  /* login name */
105           char ut_id[_UTX_IDSIZE];      /* inittab id */
106           char ut_line[_UTX_LINESIZE];  /* tty name */
107           char ut_host[_UTX_HOSTSIZE];  /* host name */
108           uint16_t ut_session;                    /* session id used for windowing */
109           uint16_t ut_type;             /* type of this entry */
110           pid_t ut_pid;                           /* process id creating the entry */
111           struct {
112                     uint16_t e_termination;       /* process termination signal */
113                     uint16_t e_exit;    /* process exit status */
114           } ut_exit;
115           struct sockaddr_storage ut_ss;          /* address where entry was made from */
116           struct timeval ut_tv;                   /* time entry was created */
117           uint8_t ut_pad[_UTX_PADSIZE]; /* reserved for future use */
118 };
119 
120 #if defined(_NETBSD_SOURCE)
121 struct lastlogx {
122           struct timeval ll_tv;                   /* time entry was created */
123           char ll_line[_UTX_LINESIZE];  /* tty name */
124           char ll_host[_UTX_HOSTSIZE];  /* host name */
125           struct sockaddr_storage ll_ss;          /* address where entry was made from */
126 };
127 #endif    /* _NETBSD_SOURCE */
128 
129 __BEGIN_DECLS
130 
131 void setutxent(void);
132 void endutxent(void);
133 
134 #ifndef __LIBC12_SOURCE__
135 struct utmpx *getutxent(void) __RENAME(__getutxent50);
136 struct utmpx *getutxid(const struct utmpx *) __RENAME(__getutxid50);
137 struct utmpx *getutxline(const struct utmpx *) __RENAME(__getutxline50);
138 struct utmpx *pututxline(const struct utmpx *) __RENAME(__pututxline50);
139 #endif
140 
141 #if defined(_NETBSD_SOURCE)
142 #ifndef __LIBC12_SOURCE__
143 int updwtmpx(const char *, const struct utmpx *) __RENAME(__updwtmpx50);
144 struct lastlogx *getlastlogx(const char *, uid_t, struct lastlogx *)
145     __RENAME(__getlastlogx50);
146 int updlastlogx(const char *, uid_t, struct lastlogx *)
147     __RENAME(__updlastlogx50);
148 struct utmp;
149 void getutmp(const struct utmpx *, struct utmp *) __RENAME(__getutmp50);
150 void getutmpx(const struct utmp *, struct utmpx *) __RENAME(__getutmpx50);
151 #endif
152 
153 int utmpxname(const char *);
154 
155 #endif /* _NETBSD_SOURCE */
156 
157 __END_DECLS
158 
159 #endif /* !_UTMPX_H_ */
160