source: branches/3.0/mindi-busybox/console-tools/reset.c @ 3085

Last change on this file since 3085 was 2725, checked in by bruno, 9 years ago
  • Update mindi-busybox to 1.18.3 to avoid problems with the tar command which is now failing on recent versions with busybox 1.7.3
File size: 1.3 KB
Line 
1/* vi: set sw=4 ts=4: */
2/*
3 * Mini reset implementation for busybox
4 *
5 * Copyright (C) 1999-2004 by Erik Andersen <andersen@codepoet.org>
6 * Written by Erik Andersen and Kent Robotti <robotti@metconnect.com>
7 *
8 * Licensed under GPLv2 or later, see file LICENSE in this source tree.
9 */
10
11/* BTW, which "standard" package has this utility? It doesn't seem
12 * to be ncurses, coreutils, console-tools... then what? */
13
14#include "libbb.h"
15
16#define ESC "\033"
17
18#if ENABLE_STTY
19int stty_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
20#endif
21
22int reset_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
23int reset_main(int argc UNUSED_PARAM, char **argv UNUSED_PARAM)
24{
25    static const char *const args[] = {
26        "stty", "sane", NULL
27    };
28
29    /* no options, no getopt */
30
31    if (/*isatty(STDIN_FILENO) &&*/ isatty(STDOUT_FILENO)) {
32        /* See 'man 4 console_codes' for details:
33         * "ESC c"        -- Reset
34         * "ESC ( K"      -- Select user mapping
35         * "ESC [ 0 m"    -- Reset all display attributes
36         * "ESC [ J"      -- Erase to the end of screen
37         * "ESC [ ? 25 h" -- Make cursor visible
38         */
39        printf(ESC"c" ESC"(K" ESC"[0m" ESC"[J" ESC"[?25h");
40        /* http://bugs.busybox.net/view.php?id=1414:
41         * people want it to reset echo etc: */
42#if ENABLE_STTY
43        return stty_main(2, (char**)args);
44#else
45        execvp("stty", (char**)args);
46#endif
47    }
48    return EXIT_SUCCESS;
49}
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