source: branches/3.2/mindi-busybox/console-tools/reset.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: 1.5 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//usage:#define reset_trivial_usage
15//usage:       ""
16//usage:#define reset_full_usage "\n\n"
17//usage:       "Reset the screen"
18
19#include "libbb.h"
20
21#define ESC "\033"
22
23#if ENABLE_STTY
24int stty_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
25#endif
26
27int reset_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
28int reset_main(int argc UNUSED_PARAM, char **argv UNUSED_PARAM)
29{
30    static const char *const args[] = {
31        "stty", "sane", NULL
32    };
33
34    /* no options, no getopt */
35
36    if (/*isatty(STDIN_FILENO) &&*/ isatty(STDOUT_FILENO)) {
37        /* See 'man 4 console_codes' for details:
38         * "ESC c"        -- Reset
39         * "ESC ( B"      -- Select G0 Character Set (B = US)
40         * "ESC [ 0 m"    -- Reset all display attributes
41         * "ESC [ J"      -- Erase to the end of screen
42         * "ESC [ ? 25 h" -- Make cursor visible
43         */
44        printf(ESC"c" ESC"(B" ESC"[0m" ESC"[J" ESC"[?25h");
45        /* http://bugs.busybox.net/view.php?id=1414:
46         * people want it to reset echo etc: */
47#if ENABLE_STTY
48        return stty_main(2, (char**)args);
49#else
50        execvp("stty", (char**)args);
51#endif
52    }
53    return EXIT_SUCCESS;
54}
Note: See TracBrowser for help on using the repository browser.