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
|
/* utmpdump - dump utmp-like files.
Copyright (C) 1997, 2002 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Mark Kettenis <kettenis@phys.uva.nl>, 1997.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library 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
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, write to the Free
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
02111-1307 USA. */
#include <stdio.h>
#include <stdlib.h>
#include <time.h>
#include <unistd.h>
#include <utmp.h>
static void
print_entry (struct utmp *up)
{
(printf) (
/* The format string. */
#if _HAVE_UT_TYPE
"[%d] "
#endif
#if _HAVE_UT_PID
"[%05d] "
#endif
#if _HAVE_UT_ID
"[%-4.4s] "
#endif
"[%-8.8s] [%-12.12s]"
#if _HAVE_UT_HOST
" [%-16.16s]"
#endif
" [%-15.15s]"
#if _HAVE_UT_TV
" [%ld]"
#endif
"\n"
/* The arguments. */
#if _HAVE_UT_TYPE
, up->ut_type
#endif
#if _HAVE_UT_PID
, up->ut_pid
#endif
#if _HAVE_UT_ID
, up->ut_id
#endif
, up->ut_user, up->ut_line
#if _HAVE_UT_HOST
, up->ut_host
#endif
#if _HAVE_UT_TV
, 4 + ctime (&up->ut_tv.tv_sec)
, up->ut_tv.tv_usec
#else
, 4 + ctime (&up->ut_time)
#endif
);
}
int
main (int argc, char *argv[])
{
struct utmp *up;
if (argc > 1)
utmpname (argv[1]);
setutent ();
while ((up = getutent ()))
print_entry (up);
endutent ();
return EXIT_SUCCESS;
}
|
