* 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.
+ * 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 (275 bytes)"
+//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_NOEXEC(reset, reset, BB_DIR_USR_BIN, BB_SUID_DROP, reset))
+
+//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"
-/* BTW, which "standard" package has this utility? It doesn't seem
- * to be ncurses, coreutils, console-tools... then what? */
+#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, char **argv)
+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(0) && isatty(1)) {
+ 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 display
- * "ESC [ 0 m" -- Reset all display attributes
- * "ESC [ ? 25 h" -- Make cursor visible.
+ * "ESC c" -- Reset
+ * "ESC ( B" -- Select G0 Character Set (B = US)
+ * "ESC [ m" -- Reset all display attributes
+ * "ESC [ J" -- Erase to the end of screen
+ * "ESC [ ? 25 h" -- Make cursor visible
*/
- printf("\033c\033(K\033[J\033[0m\033[?25h");
+ printf(ESC"c" ESC"(B" ESC"[m" 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
- execvp("stty", args);
+ /* Make sure stdout gets drained before we execvp */
+ fflush_all();
+ execvp("stty", (char**)args);
#endif
}
return EXIT_SUCCESS;