- constify some read-only members and remove superfluous casts

[oweals/busybox.git] / docs / new-applet-HOWTO.txt

diff --git a/docs/new-applet-HOWTO.txt b/docs/new-applet-HOWTO.txt
index 24bc1d824111419502c802e28e02c591171091db..1c2383f351970d4ede4e4ca8229ade6024f21cf8 100644 (file)
--- a/docs/new-applet-HOWTO.txt
+++ b/docs/new-applet-HOWTO.txt
@@ -16,6 +16,8 @@ such as who you stole the code from and so forth. Also include the mini-GPL
 boilerplate. Be sure to name the main function <applet>_main instead of main.
 And be sure to put it in <applet>.c. Usage does not have to be taken care of by
 your applet.
+Make sure to #include "busybox.h" as the first include file in your applet so
+the bb_config.h and appropriate platform specific files are included properly.
 
 For a new applet mu, here is the code that would go in mu.c:
 
@@ -25,35 +27,20 @@ For a new applet mu, here is the code that would go in mu.c:
 /*
  * Mini mu implementation for busybox
  *
- *
  * Copyright (C) [YEAR] by [YOUR NAME] <YOUR EMAIL>
  *
- * 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 "busybox.h"
+#include <other.h>
 
 int mu_main(int argc, char **argv)
 {
        int fd;
        char mu;
 
-       if ((fd = open("/dev/random", O_RDONLY)) < 0)
-               bb_perror_msg_and_die("/dev/random");
+       fd = xopen("/dev/random", O_RDONLY);
 
        if ((n = safe_read(fd, &mu, 1)) < 1)
                bb_perror_msg_and_die("/dev/random");