1 /* Declarations for GNU's read utmp module.
3 Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000,
4 2001, 2002, 2003, 2004, 2005, 2006 Free Software Foundation, Inc.
6 This program is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 2, or (at your option)
11 This program is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with this program; if not, write to the Free Software Foundation,
18 Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */
20 /* Written by jla; revised by djm */
22 #ifndef __READUTMP_H__
23 # define __READUTMP_H__
25 # include <sys/types.h>
27 /* AIX 4.3.3 has both utmp.h and utmpx.h, but only struct utmp
28 has the ut_exit member. */
29 # if (HAVE_UTMPX_H && HAVE_UTMP_H && HAVE_STRUCT_UTMP_UT_EXIT \
30 && ! HAVE_STRUCT_UTMPX_UT_EXIT)
36 /* HPUX 10.20 needs utmp.h, for the definition of e.g., UTMP_FILE. */
40 # define UTMP_STRUCT_NAME utmpx
41 # define UT_TIME_MEMBER(UT_PTR) ((UT_PTR)->ut_tv.tv_sec)
42 # define SET_UTMP_ENT setutxent
43 # define GET_UTMP_ENT getutxent
44 # define END_UTMP_ENT endutxent
45 # ifdef HAVE_UTMPXNAME
46 # define UTMP_NAME_FUNCTION utmpxname
49 # if HAVE_STRUCT_UTMPX_UT_EXIT_E_TERMINATION
50 # define UT_EXIT_E_TERMINATION(U) ((U)->ut_exit.e_termination)
52 # if HAVE_STRUCT_UTMPX_UT_EXIT_UT_TERMINATION
53 # define UT_EXIT_E_TERMINATION(U) ((U)->ut_exit.ut_termination)
55 # define UT_EXIT_E_TERMINATION(U) 0
59 # if HAVE_STRUCT_UTMPX_UT_EXIT_E_EXIT
60 # define UT_EXIT_E_EXIT(U) ((U)->ut_exit.e_exit)
62 # if HAVE_STRUCT_UTMPX_UT_EXIT_UT_EXIT
63 # define UT_EXIT_E_EXIT(U) ((U)->ut_exit.ut_exit)
65 # define UT_EXIT_E_EXIT(U) 0
72 # if !HAVE_DECL_GETUTENT
73 struct utmp *getutent();
75 # define UTMP_STRUCT_NAME utmp
76 # define UT_TIME_MEMBER(UT_PTR) ((UT_PTR)->ut_time)
77 # define SET_UTMP_ENT setutent
78 # define GET_UTMP_ENT getutent
79 # define END_UTMP_ENT endutent
81 # define UTMP_NAME_FUNCTION utmpname
84 # if HAVE_STRUCT_UTMP_UT_EXIT_E_TERMINATION
85 # define UT_EXIT_E_TERMINATION(U) ((U)->ut_exit.e_termination)
87 # if HAVE_STRUCT_UTMP_UT_EXIT_UT_TERMINATION
88 # define UT_EXIT_E_TERMINATION(U) ((U)->ut_exit.ut_termination)
90 # define UT_EXIT_E_TERMINATION(U) 0
94 # if HAVE_STRUCT_UTMP_UT_EXIT_E_EXIT
95 # define UT_EXIT_E_EXIT(U) ((U)->ut_exit.e_exit)
97 # if HAVE_STRUCT_UTMP_UT_EXIT_UT_EXIT
98 # define UT_EXIT_E_EXIT(U) ((U)->ut_exit.ut_exit)
100 # define UT_EXIT_E_EXIT(U) 0
106 /* Accessor macro for the member named ut_user or ut_name. */
109 # if HAVE_STRUCT_UTMPX_UT_USER
110 # define UT_USER(Utmp) ((Utmp)->ut_user)
112 # if HAVE_STRUCT_UTMPX_UT_NAME
114 # define UT_USER(Utmp) ((Utmp)->ut_name)
119 # if HAVE_STRUCT_UTMP_UT_USER
120 # define UT_USER(Utmp) ((Utmp)->ut_user)
122 # if HAVE_STRUCT_UTMP_UT_NAME
124 # define UT_USER(Utmp) ((Utmp)->ut_name)
129 # define HAVE_STRUCT_XTMP_UT_EXIT \
130 (HAVE_STRUCT_UTMP_UT_EXIT \
131 || HAVE_STRUCT_UTMPX_UT_EXIT)
133 # define HAVE_STRUCT_XTMP_UT_ID \
134 (HAVE_STRUCT_UTMP_UT_ID \
135 || HAVE_STRUCT_UTMPX_UT_ID)
137 # define HAVE_STRUCT_XTMP_UT_PID \
138 (HAVE_STRUCT_UTMP_UT_PID \
139 || HAVE_STRUCT_UTMPX_UT_PID)
141 typedef struct UTMP_STRUCT_NAME STRUCT_UTMP;
143 enum { UT_USER_SIZE = sizeof UT_USER ((STRUCT_UTMP *) 0) };
145 # if !defined UTMP_FILE && defined _PATH_UTMP
146 # define UTMP_FILE _PATH_UTMP
149 # if !defined WTMP_FILE && defined _PATH_WTMP
150 # define WTMP_FILE _PATH_WTMP
153 # ifdef UTMPX_FILE /* Solaris, SysVr4 */
155 # define UTMP_FILE UTMPX_FILE
158 # ifdef WTMPX_FILE /* Solaris, SysVr4 */
160 # define WTMP_FILE WTMPX_FILE
164 # define UTMP_FILE "/etc/utmp"
168 # define WTMP_FILE "/etc/wtmp"
171 # if HAVE_STRUCT_XTMP_UT_PID
172 # define UT_PID(U) ((U)->ut_pid)
177 # if HAVE_STRUCT_UTMP_UT_TYPE || HAVE_STRUCT_UTMPX_UT_TYPE
178 # define UT_TYPE_EQ(U, V) ((U)->ut_type == (V))
179 # define UT_TYPE_NOT_DEFINED 0
181 # define UT_TYPE_EQ(U, V) 0
182 # define UT_TYPE_NOT_DEFINED 1
186 # define UT_TYPE_BOOT_TIME(U) UT_TYPE_EQ (U, BOOT_TIME)
188 # define UT_TYPE_BOOT_TIME(U) 0
192 # define UT_TYPE_USER_PROCESS(U) UT_TYPE_EQ (U, USER_PROCESS)
194 # define UT_TYPE_USER_PROCESS(U) 0
197 # define IS_USER_PROCESS(U) \
199 && (UT_TYPE_USER_PROCESS (U) \
200 || (UT_TYPE_NOT_DEFINED && UT_TIME_MEMBER (U) != 0)))
202 /* Options for read_utmp. */
205 READ_UTMP_CHECK_PIDS = 1,
206 READ_UTMP_USER_PROCESS = 2
209 char *extract_trimmed_name (const STRUCT_UTMP *ut);
210 int read_utmp (char const *file, size_t *n_entries, STRUCT_UTMP **utmp_buf,
213 #endif /* __READUTMP_H__ */