- an empty middle term in ?: violates ISO C

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

diff --git a/console-tools/reset.c b/console-tools/reset.c
index 0039afa693b21e974e68b30be4c5bdf5b429f6bb..5a7e88d7bfb340c1ffa1fc76dce79378433f5005 100644 (file)
--- a/console-tools/reset.c
+++ b/console-tools/reset.c
@@ -2,8 +2,7 @@
 /*
  * 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
@@ -22,13 +21,25 @@
  *
  */
 
+/* no options, no getopt */
+
 #include <stdio.h>
 #include <stdlib.h>
+#include <unistd.h>
 #include "busybox.h"
 
 extern int reset_main(int argc, char **argv)
 {
-          printf("\033[?25h\033c");
-       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;
 }