| /* vi: set sw=4 ts=4: */ |
| /* |
| * Mini reset implementation for busybox |
| * |
| * Copyright (C) 1999-2004 by Erik Andersen <andersen@codepoet.org> |
| * Written by Erik Andersen and Kent Robotti <robotti@metconnect.com> |
| * |
| * Licensed under GPLv2 or later, see file LICENSE in this source tree. |
| */ |
| /* "Standard" version of this tool is in ncurses package */ |
| |
| //config:config RESET |
| //config: bool "reset" |
| //config: default y |
| //config: help |
| //config: This program is used to reset the terminal screen, if it |
| //config: gets messed up. |
| |
| //applet:IF_RESET(APPLET(reset, BB_DIR_USR_BIN, BB_SUID_DROP)) |
| |
| //kbuild:lib-$(CONFIG_RESET) += reset.o |
| |
| //usage:#define reset_trivial_usage |
| //usage: "" |
| //usage:#define reset_full_usage "\n\n" |
| //usage: "Reset the screen" |
| |
| #include "libbb.h" |
| |
| #define ESC "\033" |
| |
| #if ENABLE_STTY |
| int stty_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE; |
| #endif |
| |
| int reset_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE; |
| int reset_main(int argc UNUSED_PARAM, char **argv UNUSED_PARAM) |
| { |
| static const char *const args[] = { |
| "stty", "sane", NULL |
| }; |
| |
| /* no options, no getopt */ |
| |
| if (/*isatty(STDIN_FILENO) &&*/ isatty(STDOUT_FILENO)) { |
| /* See 'man 4 console_codes' for details: |
| * "ESC c" -- Reset |
| * "ESC ( B" -- Select G0 Character Set (B = US) |
| * "ESC [ 0 m" -- Reset all display attributes |
| * "ESC [ J" -- Erase to the end of screen |
| * "ESC [ ? 25 h" -- Make cursor visible |
| */ |
| printf(ESC"c" ESC"(B" ESC"[0m" ESC"[J" ESC"[?25h"); |
| /* http://bugs.busybox.net/view.php?id=1414: |
| * people want it to reset echo etc: */ |
| #if ENABLE_STTY |
| return stty_main(2, (char**)args); |
| #else |
| /* Make sure stdout gets drained before we execvp */ |
| fflush_all(); |
| execvp("stty", (char**)args); |
| #endif |
| } |
| return EXIT_SUCCESS; |
| } |