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