Changed bb_regcomp to xregcomp and #if 0'ed out destroy_cmd_strs in sed.c
[oweals/busybox.git] / chvt.c
1 /* vi: set sw=4 ts=4: */
2 /*
3  * chvt.c - aeb - 940227 - Change virtual terminal
4  *
5  * busyboxed by Erik Andersen
6  */
7 #include "internal.h"
8 #include <stdio.h>
9 #include <stdlib.h>
10 #include <fcntl.h>
11 #include <sys/types.h>
12 #include <sys/ioctl.h>
13
14 /* From <linux/vt.h> */
15 #define VT_ACTIVATE     0x5606  /* make vt active */
16 #define VT_WAITACTIVE   0x5607  /* wait for vt active */
17
18
19 int chvt_main(int argc, char **argv)
20 {
21         int fd, num;
22
23         if ((argc != 2) || (**(argv + 1) == '-')) {
24                 usage ("chvt N\n"
25 #ifndef BB_FEATURE_TRIVIAL_HELP
26                                 "\nChanges the foreground virtual terminal to /dev/ttyN\n"
27 #endif
28                                 );
29         }
30         fd = get_console_fd("/dev/console");
31         num = atoi(argv[1]);
32         if (ioctl(fd, VT_ACTIVATE, num)) {
33                 perror("VT_ACTIVATE");
34                 exit(FALSE);
35         }
36         if (ioctl(fd, VT_WAITACTIVE, num)) {
37                 perror("VT_WAITACTIVE");
38                 exit(FALSE);
39         }
40         return(TRUE);
41 }
42
43
44 /*
45 Local Variables:
46 c-file-style: "linux"
47 c-basic-offset: 4
48 tab-width: 4
49 End:
50 */