/* vi: set sw=4 ts=4: */
/*
- * chvt.c - aeb - 940227 - Change virtual terminal
+ * Mini chvt implementation for busybox
*
- * busyboxed by Erik Andersen
+ * Copyright (C) 1999-2004 by Erik Andersen <andersen@codepoet.org>
+ *
+ * Licensed under GPLv2 or later, see file LICENSE in this source tree.
*/
-#include "internal.h"
-#include <stdio.h>
-#include <stdlib.h>
-#include <fcntl.h>
-#include <sys/types.h>
-#include <sys/ioctl.h>
-
-/* From <linux/vt.h> */
-#define VT_ACTIVATE 0x5606 /* make vt active */
-#define VT_WAITACTIVE 0x5607 /* wait for vt active */
+//config:config CHVT
+//config: bool "chvt (2 kb)"
+//config: default y
+//config: select PLATFORM_LINUX
+//config: help
+//config: This program is used to change to another terminal.
+//config: Example: chvt 4 (change to terminal /dev/tty4)
-const char chvt_usage[] =
- "chvt N\n"
-#ifndef BB_FEATURE_TRIVIAL_HELP
- "\nChanges the foreground virtual terminal to /dev/ttyN\n"
-#endif
- ;
+//applet:IF_CHVT(APPLET_NOEXEC(chvt, chvt, BB_DIR_USR_BIN, BB_SUID_DROP, chvt))
-int chvt_main(int argc, char **argv)
-{
- int fd, num;
+//kbuild:lib-$(CONFIG_CHVT) += chvt.o
- 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);
- }
- if (ioctl(fd, VT_WAITACTIVE, num)) {
- perror("VT_WAITACTIVE");
- exit(FALSE);
- }
- return(TRUE);
-}
+//usage:#define chvt_trivial_usage
+//usage: "N"
+//usage:#define chvt_full_usage "\n\n"
+//usage: "Change the foreground virtual terminal to /dev/ttyN"
+#include "libbb.h"
-/*
-Local Variables:
-c-file-style: "linux"
-c-basic-offset: 4
-tab-width: 4
-End:
-*/
+int chvt_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
+int chvt_main(int argc UNUSED_PARAM, char **argv)
+{
+ int num = xatou_range(single_argv(argv), 1, 63);
+ console_make_active(get_console_fd_or_die(), num);
+ return EXIT_SUCCESS;
+}