blob: 54355bee61f94cffe14a75f71130eb65b879d8a9
1 | /* vi: set sw=4 ts=4: */ |
2 | /* |
3 | * Mini fgconsole implementation for busybox |
4 | * |
5 | * Copyright (C) 2010 by Grigory Batalov <bga@altlinux.org> |
6 | * |
7 | * Licensed under GPLv2 or later, see file LICENSE in this source tree. |
8 | */ |
9 | |
10 | //usage:#define fgconsole_trivial_usage |
11 | //usage: "" |
12 | //usage:#define fgconsole_full_usage "\n\n" |
13 | //usage: "Get active console" |
14 | |
15 | #include "libbb.h" |
16 | |
17 | /* From <linux/vt.h> */ |
18 | struct vt_stat { |
19 | unsigned short v_active; /* active vt */ |
20 | unsigned short v_signal; /* signal to send */ |
21 | unsigned short v_state; /* vt bitmask */ |
22 | }; |
23 | enum { VT_GETSTATE = 0x5603 }; /* get global vt state info */ |
24 | |
25 | int fgconsole_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE; |
26 | int fgconsole_main(int argc UNUSED_PARAM, char **argv UNUSED_PARAM) |
27 | { |
28 | struct vt_stat vtstat; |
29 | |
30 | vtstat.v_active = 0; |
31 | xioctl(get_console_fd_or_die(), VT_GETSTATE, &vtstat); |
32 | printf("%d\n", vtstat.v_active); |
33 | |
34 | return EXIT_SUCCESS; |
35 | } |
36 |