diff -r 4eebab50993e -r 6d139c21e22c rc433/xutil.c
--- a/rc433/xutil.c	Sun Jul 15 14:08:19 2018 +0200
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,72 +0,0 @@
-/*****************************************************************************
- * Copyright (C) 2008-2014
- *   
- * Michiel Broek <mbroek at mbse dot eu>
- *
- * This file is part of the mbsePi-apps
- *
- * This 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, or (at your option) any
- * later version.
- *
- * mbsePi-apps 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 EC-65K; see the file COPYING.  If not, write to the Free
- * Software Foundation, 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
- *****************************************************************************/
-
-#include "rc433.h"
-
-
-char *xmalloc(size_t size)
-{
-    char *tmp;
-
-    tmp = malloc(size);
-    if (!tmp) 
-	abort();
-			            
-    return tmp;
-}
-
-
-
-char *xstrcpy(char *src)
-{
-    char    *tmp;
-
-    if (src == NULL) 
-	return(NULL);
-    tmp = xmalloc(strlen(src)+1);
-    strcpy(tmp, src);
-    return tmp;
-}
-
-
-
-char *xstrcat(char *src, char *add)
-{
-    char    *tmp;
-    size_t  size = 0;
-
-    if ((add == NULL) || (strlen(add) == 0))
-	return src;
-    if (src)
-	size = strlen(src);
-    size += strlen(add);
-    tmp = xmalloc(size + 1);
-    *tmp = '\0';
-    if (src) {
-	strcpy(tmp, src);
-	free(src);
-    }
-    strcat(tmp, add);
-    return tmp;
-}
-
-