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/* vi: set sw=4 ts=4: */
/*
* setconsole.c - redirect system console output
*
* Copyright (C) 2004,2005 Enrik Berkhan <Enrik.Berkhan@inka.de>
*
* Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
*/
#include <sys/ioctl.h>
#include <sys/stat.h>
#include <sys/types.h>
#include <fcntl.h>
#include <stdio.h>
#include <getopt.h> /* struct option */
#include "busybox.h"
#if ENABLE_FEATURE_SETCONSOLE_LONG_OPTIONS
static const struct option setconsole_long_options[] = {
{ "reset", 0, NULL, 'r' },
{ 0, 0, 0, 0 }
};
#endif
#define OPT_SETCONS_RESET 1
int setconsole_main(int argc, char **argv)
{
unsigned long flags;
const char *device = CURRENT_TTY;
#if ENABLE_FEATURE_SETCONSOLE_LONG_OPTIONS
bb_applet_long_options = setconsole_long_options;
#endif
flags = bb_getopt_ulflags(argc, argv, "r");
if (argc - optind > 1)
bb_show_usage();
if (argc - optind == 1) {
if (flags & OPT_SETCONS_RESET)
bb_show_usage();
device = argv[optind];
} else {
if (flags & OPT_SETCONS_RESET)
device = CONSOLE_DEV;
}
if (-1 == ioctl(bb_xopen(device, O_RDONLY), TIOCCONS)) {
bb_perror_msg_and_die("TIOCCONS");
}
return EXIT_SUCCESS;
}
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