/* 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 tarball for details.
*/
-/* getopt not needed */
-
#include <stdio.h>
#include <stdlib.h>
#include <fcntl.h>
#include "busybox.h"
/* From <linux/vt.h> */
-static const int VT_ACTIVATE = 0x5606; /* make vt active */
-static const int VT_WAITACTIVE = 0x5607; /* wait for vt active */
+enum {
+ VT_ACTIVATE = 0x5606, /* make vt active */
+ VT_WAITACTIVE = 0x5607 /* wait for vt active */
+};
int chvt_main(int argc, char **argv)
{
int fd, num;
- if ((argc != 2) || (**(argv + 1) == '-'))
- show_usage();
- fd = get_console_fd("/dev/console");
- num = atoi(argv[1]);
- if (ioctl(fd, VT_ACTIVATE, num))
- perror_msg_and_die("VT_ACTIVATE");
- if (ioctl(fd, VT_WAITACTIVE, num))
- perror_msg_and_die("VT_WAITACTIVE");
+ if (argc != 2) {
+ bb_show_usage();
+ }
+
+ fd = get_console_fd();
+ num = bb_xgetlarg(argv[1], 10, 0, INT_MAX);
+ if ((-1 == ioctl(fd, VT_ACTIVATE, num))
+ || (-1 == ioctl(fd, VT_WAITACTIVE, num))) {
+ bb_perror_msg_and_die("ioctl");
+ }
return EXIT_SUCCESS;
}
-
-
-/*
-Local Variables:
-c-file-style: "linux"
-c-basic-offset: 4
-tab-width: 4
-End:
-*/