blob: 65940bdec5db4ecfbe268b110c422c6d1c085c8c
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 |
24 | int stty_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE; |
25 | #endif |
26 | |
27 | int reset_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE; |
28 | int 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 | } |
55 |