source: branches/3.2/mindi-busybox/console-tools/setconsole.c @ 3232

Last change on this file since 3232 was 3232, checked in by bruno, 5 years ago
  • Update mindi-busybox to 1.21.1
File size: 1.2 KB
Line 
1/* vi: set sw=4 ts=4: */
2/*
3 *  setconsole.c - redirect system console output
4 *
5 *  Copyright (C) 2004,2005  Enrik Berkhan <Enrik.Berkhan@inka.de>
6 *  Copyright (C) 2008 Bernhard Reutner-Fischer
7 *
8 * Licensed under GPLv2 or later, see file LICENSE in this source tree.
9 */
10
11//usage:#define setconsole_trivial_usage
12//usage:       "[-r" IF_FEATURE_SETCONSOLE_LONG_OPTIONS("|--reset") "] [DEVICE]"
13//usage:#define setconsole_full_usage "\n\n"
14//usage:       "Redirect system console output to DEVICE (default: /dev/tty)\n"
15//usage:     "\n    -r  Reset output to /dev/console"
16
17#include "libbb.h"
18
19int setconsole_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
20int setconsole_main(int argc UNUSED_PARAM, char **argv)
21{
22    const char *device = CURRENT_TTY;
23    bool reset;
24
25#if ENABLE_FEATURE_SETCONSOLE_LONG_OPTIONS
26    static const char setconsole_longopts[] ALIGN1 =
27        "reset\0" No_argument "r"
28        ;
29    applet_long_options = setconsole_longopts;
30#endif
31    /* at most one non-option argument */
32    opt_complementary = "?1";
33    reset = getopt32(argv, "r");
34
35    argv += 1 + reset;
36    if (*argv) {
37        device = *argv;
38    } else {
39        if (reset)
40            device = DEV_CONSOLE;
41    }
42
43    xioctl(xopen(device, O_WRONLY), TIOCCONS, NULL);
44    return EXIT_SUCCESS;
45}
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