1 /* vi: set sw=4 ts=4: */
3 * Prints out the previous and the current runlevel.
5 * Version: @(#)runlevel 1.20 16-Apr-1997 MvS
7 * This file is part of the sysvinit suite,
8 * Copyright 1991-1997 Miquel van Smoorenburg.
10 * Licensed under GPLv2 or later, see file LICENSE in this source tree.
12 * initially busyboxified by Bernhard Reutner-Fischer
15 //usage:#define runlevel_trivial_usage
17 //usage:#define runlevel_full_usage "\n\n"
18 //usage: "Find the current and previous system runlevel\n"
20 //usage: "If no utmp FILE exists or if no runlevel record can be found,\n"
21 //usage: "print \"unknown\""
23 //usage:#define runlevel_example_usage
24 //usage: "$ runlevel /var/run/utmp\n"
29 int runlevel_main(int argc
, char **argv
) MAIN_EXTERNALLY_VISIBLE
;
30 int runlevel_main(int argc UNUSED_PARAM
, char **argv
)
35 if (argv
[1]) utmpname(argv
[1]);
38 while ((ut
= getutent()) != NULL
) {
39 if (ut
->ut_type
== RUN_LVL
) {
40 prev
= ut
->ut_pid
/ 256;
41 if (prev
== 0) prev
= 'N';
42 printf("%c %c\n", prev
, ut
->ut_pid
% 256);
43 if (ENABLE_FEATURE_CLEAN_UP
)
51 if (ENABLE_FEATURE_CLEAN_UP
)