summaryrefslogtreecommitdiff
path: root/lib/readutmp.h
blob: 7cef30be523c44ceb8f6d4cf2ef78d617312a312 (plain)
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
/* Declarations for GNU's read utmp module.
   Copyright (C) 1992-1999 Free Software Foundation, Inc.

   This program is free software; you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
   the Free Software Foundation; either version 2, or (at your option)
   any later version.

   This program 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 General Public License for more details.

   You should have received a copy of the GNU General Public License
   along with this program; if not, write to the Free Software Foundation,
   Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */

/* Written by jla; revised by djm */

#ifndef __READUTMP_H__
# define __READUTMP_H__

# ifndef PARAMS
#  if defined PROTOTYPES || (defined __STDC__ && __STDC__)
#   define PARAMS(Args) Args
#  else
#   define PARAMS(Args) ()
#  endif
# endif

# include <sys/types.h>

# ifdef HAVE_UTMPX_H
#  include <utmpx.h>
#  define UTMP_STRUCT_NAME utmpx
#  define UT_TIME_MEMBER(UT_PTR) ((UT_PTR)->ut_tv.tv_sec)
#  define SET_UTMP_ENT setutxent
#  define GET_UTMP_ENT getutxent
#  define END_UTMP_ENT endutxent
#  define UTMP_NAME_FUNCTION utmpxname
# else
#  include <utmp.h>
#  define UTMP_STRUCT_NAME utmp
#  define UT_TIME_MEMBER(UT_PTR) ((UT_PTR)->ut_time)
#  define SET_UTMP_ENT setutent
#  define GET_UTMP_ENT getutent
#  define END_UTMP_ENT endutent
#  define UTMP_NAME_FUNCTION utmpname
# endif

typedef struct UTMP_STRUCT_NAME STRUCT_UTMP;

# include <time.h>
# ifdef HAVE_SYS_PARAM_H
#  include <sys/param.h>
# endif

# include <errno.h>
# ifndef errno
extern int errno;
# endif

# if !defined (UTMP_FILE) && defined (_PATH_UTMP)
#  define UTMP_FILE _PATH_UTMP
# endif

# if !defined (WTMP_FILE) && defined (_PATH_WTMP)
#  define WTMP_FILE _PATH_WTMP
# endif

# ifdef UTMPX_FILE /* Solaris, SysVr4 */
#  undef UTMP_FILE
#  define UTMP_FILE UTMPX_FILE
# endif

# ifdef WTMPX_FILE /* Solaris, SysVr4 */
#  undef WTMP_FILE
#  define WTMP_FILE WTMPX_FILE
# endif

# ifndef UTMP_FILE
#  define UTMP_FILE "/etc/utmp"
# endif

# ifndef WTMP_FILE
#  define WTMP_FILE "/etc/wtmp"
# endif

# undef PARAMS
# if defined (__STDC__) && __STDC__
#  define PARAMS(Args) Args
# else
#  define PARAMS(Args) ()
# endif

extern char *extract_trimmed_name PARAMS ((const STRUCT_UTMP *ut));
extern int read_utmp PARAMS ((const char *filename,
			      int *n_entries, STRUCT_UTMP **utmp_buf));

#endif /* __READUTMP_H__ */