51 lines
1.1 KiB
C
51 lines
1.1 KiB
C
/* 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"
|
|
|
|
static const struct option setconsole_long_options[] = {
|
|
{ "reset", 0, NULL, 'r' },
|
|
{ 0, 0, 0, 0 }
|
|
};
|
|
|
|
#define OPT_SETCONS_RESET 1
|
|
|
|
int setconsole_main(int argc, char **argv)
|
|
{
|
|
unsigned long flags;
|
|
const char *device = CURRENT_TTY;
|
|
|
|
bb_applet_long_options = setconsole_long_options;
|
|
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;
|
|
}
|