libpwdgrp: tweak comments, replace one xmalloc with xzalloc

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

diff --git a/console-tools/clear.c b/console-tools/clear.c
index b1641bd1cb466e87a6dc52e81fa49fc6d03a8b97..ac22b787e84e829a183d83ba3f677f5534cf8d3f 100644 (file)
--- a/console-tools/clear.c
+++ b/console-tools/clear.c
@@ -2,35 +2,21 @@
 /*
  * Mini clear implementation for busybox
  *
+ * Copyright (C) 1999-2004 by Erik Andersen <andersen@codepoet.org>
  *
- * Copyright (C) 1999,2000 by Lineo, inc.
- * Written by Erik Andersen <andersen@lineo.com>, <andersee@debian.org>
- *
- * 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 source tree.
  */
 
-#include "internal.h"
-#include <stdio.h>
+//usage:#define clear_trivial_usage
+//usage:       ""
+//usage:#define clear_full_usage "\n\n"
+//usage:       "Clear screen"
 
+#include "libbb.h"
 
-extern int clear_main(int argc, char **argv)
+int clear_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
+int clear_main(int argc UNUSED_PARAM, char **argv UNUSED_PARAM)
 {
-       if (argc > 1 && strcmp(argv[1], "--help") == 0)
-               usage(clear_usage);
-
-       printf("\033[H\033[J");
-       return(TRUE);
+       /* home; clear to the end of screen */
+       return full_write1_str("\033[H""\033[J") != 6;
 }