]>
Commit | Line | Data |
---|---|---|
a74aeac6 PR |
1 | /* |
2 | * runlevel Prints out the previous and the current runlevel. | |
3 | * | |
4 | * Version: @(#)runlevel 1.20 16-Apr-1997 MvS | |
5 | * | |
6 | * This file is part of the sysvinit suite, | |
7 | * Copyright (C) 1991-1997 Miquel van Smoorenburg. | |
8 | * | |
9 | * This program is free software; you can redistribute it and/or modify | |
10 | * it under the terms of the GNU General Public License as published by | |
11 | * the Free Software Foundation; either version 2 of the License, or | |
12 | * (at your option) any later version. | |
13 | * | |
14 | * This program is distributed in the hope that it will be useful, | |
15 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
17 | * GNU General Public License for more details. | |
18 | * | |
19 | * You should have received a copy of the GNU General Public License | |
20 | * along with this program; if not, write to the Free Software | |
21 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA | |
22 | */ | |
23 | ||
24 | #include <stdio.h> | |
25 | #include <utmp.h> | |
26 | #include <time.h> | |
27 | #include <stdlib.h> | |
28 | ||
29 | int main(argc, argv) | |
30 | int argc; | |
31 | char **argv; | |
32 | { | |
33 | struct utmp *ut; | |
34 | char prev; | |
35 | ||
36 | if (argc > 1) utmpname(argv[1]); | |
37 | ||
38 | setutent(); | |
39 | while ((ut = getutent()) != NULL) { | |
40 | if (ut->ut_type == RUN_LVL) { | |
41 | prev = ut->ut_pid / 256; | |
42 | if (prev == 0) prev = 'N'; | |
43 | printf("%c %c\n", prev, ut->ut_pid % 256); | |
44 | endutent(); | |
45 | exit(0); | |
46 | } | |
47 | } | |
48 | ||
49 | printf("unknown\n"); | |
50 | endutent(); | |
51 | return(1); | |
52 | } | |
53 |