save a bit of code with *strchrnul = '\0' trick

[oweals/busybox.git] / console-tools / reset.c

diff --git a/console-tools/reset.c b/console-tools/reset.c
index 593819baca47e508ee02e4b86233d7283b7ca144..bb096cf9f633f4642f47e3cc41919bc0c93db5e1 100644 (file)
--- a/console-tools/reset.c
+++ b/console-tools/reset.c
@@ -2,33 +2,29 @@
 /*
  * Mini reset implementation for busybox
  *
- * Copyright (C) 1999,2000 by Lineo, inc. and Erik Andersen
- * Copyright (C) 1999-2002 by Erik Andersen <andersee@debian.org>
+ * Copyright (C) 1999-2004 by Erik Andersen <andersen@codepoet.org>
  * Written by Erik Andersen and Kent Robotti <robotti@metconnect.com>
  *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- *
+ * Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
  */
 
-#include <stdio.h>
-#include <stdlib.h>
-#include "busybox.h"
+/* no options, no getopt */
+
+#include "libbb.h"
 
-extern int reset_main(int argc, char **argv)
+int reset_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
+int reset_main(int argc, char **argv)
 {
-          printf("\033[?25h\033c\033[J");
-       return EXIT_SUCCESS;
+       if (isatty(1)) {
+               /* 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.
+                */
+               printf("\033c\033(K\033[J\033[0m\033[?25h");
+       }
+       return EXIT_SUCCESS;
 }