*
* Copyright (C) 1999-2004 by Erik Andersen <andersen@codepoet.org>
*
- * Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
+ * Licensed under GPLv2 or later, see file LICENSE in this source tree.
*/
-#include "libbb.h"
+//usage:#define chvt_trivial_usage
+//usage: "N"
+//usage:#define chvt_full_usage "\n\n"
+//usage: "Change the foreground virtual terminal to /dev/ttyN"
-/* From <linux/vt.h> */
-enum {
- VT_ACTIVATE = 0x5606, /* make vt active */
- VT_WAITACTIVE = 0x5607 /* wait for vt active */
-};
+#include "libbb.h"
int chvt_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
-int chvt_main(int argc, char **argv)
+int chvt_main(int argc UNUSED_PARAM, char **argv)
{
- int fd, num;
-
- if (argc != 2) {
- bb_show_usage();
- }
-
- fd = get_console_fd();
- num = xatou_range(argv[1], 1, 63);
- /* double cast suppresses "cast to ptr from int of different size" */
- xioctl(fd, VT_ACTIVATE, (void *)(ptrdiff_t)num);
- xioctl(fd, VT_WAITACTIVE, (void *)(ptrdiff_t)num);
+ int num = xatou_range(single_argv(argv), 1, 63);
+ console_make_active(get_console_fd_or_die(), num);
return EXIT_SUCCESS;
}