source: MondoRescue/branches/2.2.5/mindi-busybox/miscutils/runlevel.c @ 1765

Last change on this file since 1765 was 1765, checked in by Bruno Cornec, 13 years ago

Update to busybox 1.7.2

File size: 892 bytes
Line 
1/* vi: set sw=4 ts=4: */
2/*
3 * runlevel Prints out the previous and the current runlevel.
4 *
5 * Version: @(#)runlevel  1.20  16-Apr-1997  MvS
6 *
7 *      This file is part of the sysvinit suite,
8 *      Copyright 1991-1997 Miquel van Smoorenburg.
9 *
10 * Licensed under the GPL v2 or later, see the file LICENSE in this tarball.
11 *
12 * initially busyboxified by Bernhard Fischer
13 */
14
15#include <utmp.h>
16#include "libbb.h"
17
18int runlevel_main(int argc, char **argv);
19int runlevel_main(int argc, char **argv)
20{
21    struct utmp *ut;
22    char prev;
23
24    if (argc > 1) utmpname(argv[1]);
25
26    setutent();
27    while ((ut = getutent()) != NULL) {
28        if (ut->ut_type == RUN_LVL) {
29            prev = ut->ut_pid / 256;
30            if (prev == 0) prev = 'N';
31            printf("%c %c\n", prev, ut->ut_pid % 256);
32            if (ENABLE_FEATURE_CLEAN_UP)
33                endutent();
34            return 0;
35        }
36    }
37
38    puts("unknown");
39
40    if (ENABLE_FEATURE_CLEAN_UP)
41        endutent();
42    return 1;
43}
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