/* vi: set sw=4 ts=4: */
/*
- * setlogcons: Send kernel messages to the current console or to console N
+ * setlogcons: Send kernel messages to the current console or to console N
*
* Copyright (C) 2006 by Jan Kiszka <jan.kiszka@web.de>
*
* Based on setlogcons (kbd-1.12) by Andries E. Brouwer
*
- * 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 "busybox.h"
+//usage:#define setlogcons_trivial_usage
+//usage: "N"
+//usage:#define setlogcons_full_usage "\n\n"
+//usage: "Redirect the kernel output to console N (0 for current)"
-extern int setlogcons_main(int argc, char **argv)
+#include "libbb.h"
+
+int setlogcons_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
+int setlogcons_main(int argc UNUSED_PARAM, char **argv)
{
struct {
char fn;
char subarg;
- } arg;
-
- arg.fn = 11; /* redirect kernel messages */
- arg.subarg = 0; /* to specified console (current as default) */
+ } arg = {
+ 11, /* redirect kernel messages */
+ 0 /* to specified console (current as default) */
+ };
- if (argc == 2)
- arg.subarg = atoi(argv[1]);
+ if (argv[1])
+ arg.subarg = xatou_range(argv[1], 0, 63);
- if (ioctl(xopen(VC_1, O_RDONLY), TIOCLINUX, &arg))
- bb_perror_msg_and_die("TIOCLINUX");;
+ xioctl(xopen(VC_1, O_RDONLY), TIOCLINUX, &arg);
- return 0;
+ return EXIT_SUCCESS;
}