Support for tar -z option for uncompressing only
[oweals/busybox.git] / console-tools / chvt.c
index bf1ed609bf005bce75769d1cf8e2c364fc01863a..7909645868c05a867ca8a7055c6f48e9dc2f198d 100644 (file)
@@ -4,38 +4,34 @@
  *
  * busyboxed by Erik Andersen
  */
-#include "internal.h"
-#include <sys/types.h>
-#include <sys/ioctl.h>
-#include <linux/vt.h>
+#include "busybox.h"
 #include <stdio.h>
 #include <stdlib.h>
 #include <fcntl.h>
+#include <sys/types.h>
+#include <sys/ioctl.h>
 
-extern int getfd(void);
+/* From <linux/vt.h> */
+#define VT_ACTIVATE     0x5606  /* make vt active */
+#define VT_WAITACTIVE   0x5607  /* wait for vt active */
 
 int chvt_main(int argc, char **argv)
 {
        int fd, num;
 
-       if ((argc != 2) || (**(argv + 1) == '-')) {
-               usage ("chvt N\n"
-#ifndef BB_FEATURE_TRIVIAL_HELP
-                               "\nChanges the foreground virtual terminal to /dev/ttyN\n"
-#endif
-                               );
-       }
+       if ((argc != 2) || (**(argv + 1) == '-'))
+               usage (chvt_usage);
        fd = get_console_fd("/dev/console");
        num = atoi(argv[1]);
        if (ioctl(fd, VT_ACTIVATE, num)) {
                perror("VT_ACTIVATE");
-               exit(FALSE);
+               return EXIT_FAILURE;
        }
        if (ioctl(fd, VT_WAITACTIVE, num)) {
                perror("VT_WAITACTIVE");
-               exit(FALSE);
+               return EXIT_FAILURE;
        }
-       exit(TRUE);
+       return EXIT_SUCCESS;
 }