about summary refs log tree commit diff
path: root/login/programs/utmpdump.c
blob: d1b5da235c7a93ec5633ef307a6a8103b42ae524 (plain) (blame)
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;
}