/* * setconsole.c -- choose a console to receive kernel messages * * Copyright (C) 1998,2000,2001 Alessandro Rubini *  *   This program is free software; you can redistribute it and/or modify *   it under the terms of the GNU General Public License as published by *   the Free Software Foundation; either version 2 of the License, or *   (at your option) any later version. * *   This program is distributed in the hope that it will be useful, *   but WITHOUT ANY WARRANTY; without even the implied warranty of *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the *   GNU General Public License for more details. * *   You should have received a copy of the GNU General Public License *   along with this program; if not, write to the Free Software *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA. */#include <stdio.h>#include <stdlib.h>#include <string.h>#include <errno.h>#include <unistd.h>#include <sys/ioctl.h>int main(int argc, char **argv){    char bytes[2] = {11,0}; /* 11 is the TIOCLINUX cmd number */    if (argc==2) bytes[1] = atoi(argv[1]); /* the chosen console */    else {        fprintf(stderr, "%s: need a single arg\n",argv[0]); exit(1);    }    if (ioctl(STDIN_FILENO, TIOCLINUX, bytes)<0) {    /* use stdin */        fprintf(stderr,"%s: ioctl(stdin, TIOCLINUX): %s\n",                argv[0], strerror(errno));        exit(1);    }    exit(0);}