diff options
Diffstat (limited to 'busybox/console-tools/chvt.c')
-rw-r--r-- | busybox/console-tools/chvt.c | 61 |
1 files changed, 61 insertions, 0 deletions
diff --git a/busybox/console-tools/chvt.c b/busybox/console-tools/chvt.c new file mode 100644 index 000000000..3398892f5 --- /dev/null +++ b/busybox/console-tools/chvt.c | |||
@@ -0,0 +1,61 @@ | |||
1 | /* vi: set sw=4 ts=4: */ | ||
2 | /* | ||
3 | * Mini chvt implementation for busybox | ||
4 | * | ||
5 | * Copyright (C) 1999-2004 by Erik Andersen <andersen@codepoet.org> | ||
6 | * | ||
7 | * This program is free software; you can redistribute it and/or modify | ||
8 | * it under the terms of the GNU General Public License as published by | ||
9 | * the Free Software Foundation; either version 2 of the License, or | ||
10 | * (at your option) any later version. | ||
11 | * | ||
12 | * This program is distributed in the hope that it will be useful, | ||
13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
15 | * GNU General Public License for more details. | ||
16 | * | ||
17 | * You should have received a copy of the GNU General Public License | ||
18 | * along with this program; if not, write to the Free Software | ||
19 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | ||
20 | */ | ||
21 | |||
22 | /* no options, no getopt */ | ||
23 | |||
24 | #include <stdio.h> | ||
25 | #include <stdlib.h> | ||
26 | #include <fcntl.h> | ||
27 | #include <sys/types.h> | ||
28 | #include <sys/ioctl.h> | ||
29 | #include "busybox.h" | ||
30 | |||
31 | /* From <linux/vt.h> */ | ||
32 | static const int VT_ACTIVATE = 0x5606; /* make vt active */ | ||
33 | static const int VT_WAITACTIVE = 0x5607; /* wait for vt active */ | ||
34 | |||
35 | int chvt_main(int argc, char **argv) | ||
36 | { | ||
37 | int fd, num; | ||
38 | |||
39 | if (argc != 2) { | ||
40 | bb_show_usage(); | ||
41 | } | ||
42 | |||
43 | fd = get_console_fd(); | ||
44 | num = bb_xgetlarg(argv[1], 10, 0, INT_MAX); | ||
45 | if (ioctl(fd, VT_ACTIVATE, num)) { | ||
46 | bb_perror_msg_and_die("VT_ACTIVATE"); | ||
47 | } | ||
48 | if (ioctl(fd, VT_WAITACTIVE, num)) { | ||
49 | bb_perror_msg_and_die("VT_WAITACTIVE"); | ||
50 | } | ||
51 | return EXIT_SUCCESS; | ||
52 | } | ||
53 | |||
54 | |||
55 | /* | ||
56 | Local Variables: | ||
57 | c-file-style: "linux" | ||
58 | c-basic-offset: 4 | ||
59 | tab-width: 4 | ||
60 | End: | ||
61 | */ | ||