blob: 2ea36f0397c1f3df51ff431e59675fc1d84203ba [file] [log] [blame]
/* vi: set sw=4 ts=4: */
* setlogcons: Send kernel messages to the current console or to console N
* Copyright (C) 2006 by Jan Kiszka <>
* Based on setlogcons (kbd-1.12) by Andries E. Brouwer
* Licensed under GPLv2 or later, see file LICENSE in this source tree.
//config:config SETLOGCONS
//config: bool "setlogcons"
//config: default y
//config: select PLATFORM_LINUX
//config: help
//config: This program redirects the output console of kernel messages.
//kbuild:lib-$(CONFIG_SETLOGCONS) += setlogcons.o
//usage:#define setlogcons_trivial_usage
//usage: "[N]"
//usage:#define setlogcons_full_usage "\n\n"
//usage: "Redirect the kernel output to console N. Default:0 (current console)"
#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 = {
11, /* redirect kernel messages */
0 /* to specified console (current as default) */
if (argv[1])
arg.subarg = xatou_range(argv[1], 0, 63);
xioctl(xopen(VC_1, O_RDONLY), TIOCLINUX, &arg);