busybox/console-tools/reset.c

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/* 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 tarball for details.
*/
#include "libbb.h"
/* BTW, which "standard" package has this utility? It doesn't seem
* to be ncurses, coreutils, console-tools... then what? */
#if ENABLE_STTY
int stty_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
#endif
int reset_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
2008-07-05 14:48:54 +05:30
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 ( K" -- Select user mapping
* "ESC [ J" -- Erase to the end of screen
* "ESC [ 0 m" -- Reset all display attributes
* "ESC [ ? 25 h" -- Make cursor visible
*/
printf("\033c\033(K\033[J\033[0m\033[?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
execvp("stty", (char**)args);
#endif
}
return EXIT_SUCCESS;
}