source: MondoRescue/branches/3.3/mindi-busybox/console-tools/setlogcons.c

/* vi: set sw=4 ts=4: */
/*
 * 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 source tree.
 */

//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);

    return EXIT_SUCCESS;
}