1 /* utmpdump - dump utmp-like files.
2 Copyright (C) 1997-2024 Free Software Foundation, Inc.
3 This file is part of the GNU C Library.
5 The GNU C Library is free software; you can redistribute it and/or
6 modify it under the terms of the GNU Lesser General Public
7 License as published by the Free Software Foundation; either
8 version 2.1 of the License, or (at your option) any later version.
10 The GNU C Library is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 Lesser General Public License for more details.
15 You should have received a copy of the GNU Lesser General Public
16 License along with the GNU C Library; if not, see
17 <https://www.gnu.org/licenses/>. */
26 print_entry (struct utmp
*up
)
28 /* Mixed 32-/64-bit systems may have timeval structs of different sixe
29 but need struct utmp to be the same size. So in 64-bit up->ut_tv may
30 not be a timeval but a struct of __int32_t's. This would cause a compile
31 time warning and a formatting error when 32-bit int is passed where
32 a 64-bit long is expected. So copy up->up_tv to a temporary timeval.
33 This is 32-/64-bit agnostic and expands the timeval fields to the
34 expected size as needed. */
35 struct timeval temp_tv
;
36 temp_tv
.tv_sec
= up
->ut_tv
.tv_sec
;
37 temp_tv
.tv_usec
= up
->ut_tv
.tv_usec
;
39 printf ("[%d] [%05d] [%-4.4s] [%-8.8s] [%-12.12s] [%-16.16s] [%-15.15s]"
41 up
->ut_type
, up
->ut_pid
, up
->ut_id
, up
->ut_user
, up
->ut_line
,
42 up
->ut_host
, 4 + ctime (&temp_tv
.tv_sec
),
43 (long int) temp_tv
.tv_usec
);
47 main (int argc
, char *argv
[])
56 while ((up
= getutent ()))