/*
* Mini chvt implementation for busybox
*
- * Copyright (C) 1999-2003 by Erik Andersen <andersen@codepoet.org>
+ * Copyright (C) 1999-2004 by Erik Andersen <andersen@codepoet.org>
*
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ * Licensed under GPLv2 or later, see file LICENSE in this source tree.
*/
-/* no options, no getopt */
+//usage:#define chvt_trivial_usage
+//usage: "N"
+//usage:#define chvt_full_usage "\n\n"
+//usage: "Change the foreground virtual terminal to /dev/ttyN"
-#include <stdio.h>
-#include <stdlib.h>
-#include <fcntl.h>
-#include <sys/types.h>
-#include <sys/ioctl.h>
-#include "busybox.h"
+#include "libbb.h"
-/* From <linux/vt.h> */
-static const int VT_ACTIVATE = 0x5606; /* make vt active */
-static const int VT_WAITACTIVE = 0x5607; /* wait for vt active */
-
-int chvt_main(int argc, char **argv)
+int chvt_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
+int chvt_main(int argc UNUSED_PARAM, char **argv)
{
- int fd, num;
-
- if (argc != 2) {
- bb_show_usage();
- }
-
- fd = get_console_fd();
- num = bb_xgetlarg(argv[1], 10, 0, INT_MAX);
- if (ioctl(fd, VT_ACTIVATE, num)) {
- bb_perror_msg_and_die("VT_ACTIVATE");
- }
- if (ioctl(fd, VT_WAITACTIVE, num)) {
- bb_perror_msg_and_die("VT_WAITACTIVE");
- }
+ int num = xatou_range(single_argv(argv), 1, 63);
+ console_make_active(get_console_fd_or_die(), num);
return EXIT_SUCCESS;
}
-
-
-/*
-Local Variables:
-c-file-style: "linux"
-c-basic-offset: 4
-tab-width: 4
-End:
-*/