75 lines
1.8 KiB
C
75 lines
1.8 KiB
C
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/* vi: set sw=4 ts=4: */
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/*
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* setconsole.c - redirect system console output
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*
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* Copyright (C) 2004,2005 Enrik Berkhan <Enrik.Berkhan@inka.de>
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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 <sys/ioctl.h>
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#include <sys/stat.h>
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#include <sys/types.h>
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#include <fcntl.h>
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#include <stdio.h>
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#include <getopt.h>
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#include "busybox.h"
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static const struct option setconsole_long_options[] = {
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{ "reset", 0, NULL, 'r' },
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{ 0, 0, 0, 0 }
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};
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#define OPT_SETCONS_RESET 1
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int setconsole_main(int argc, char **argv)
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{
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int con;
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unsigned long flags;
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const char *device = "/dev/tty";
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bb_applet_long_options = setconsole_long_options;
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flags = bb_getopt_ulflags(argc, argv, "r");
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if (argc - optind > 1)
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bb_show_usage();
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if (argc - optind == 1) {
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if (flags & OPT_SETCONS_RESET)
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bb_show_usage();
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device = argv[optind];
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} else {
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if (flags & OPT_SETCONS_RESET)
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device = "/dev/console";
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}
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if (-1 == (con = open(device, O_RDONLY))) {
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bb_perror_msg_and_die("open %s", device);
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}
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if (-1 == ioctl(con, TIOCCONS)) {
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bb_perror_msg_and_die("ioctl TIOCCONS");
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}
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return EXIT_SUCCESS;
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}
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/*
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Local Variables:
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c-file-style: "linux"
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c-basic-offset: 4
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tab-width: 4
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End:
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*/
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