Avoid allocating packet buffers unnecessarily.

[meshlink] / src / utils.h

diff --git a/src/utils.h b/src/utils.h
index 1ea1026a52303bfa82681eb1dc025eb45a323a7c..6c01e6ae84262b68347dc370449d6cdabda57fab 100644 (file)
--- a/src/utils.h
+++ b/src/utils.h
@@ -1,6 +1,9 @@
+#ifndef MESHLINK_UTILS_H
+#define MESHLINK_UTILS_H
+
 /*
     utils.h -- header file for utils.c
-    Copyright (C) 2014 Guus Sliepen <guus@meshlink.io>
+    Copyright (C) 2014, 2017 Guus Sliepen <guus@meshlink.io>
 
     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
@@ -17,9 +20,6 @@
     51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 */
 
-#ifndef __MESHLINK_UTILS_H__
-#define __MESHLINK_UTILS_H__
-
 extern int hex2bin(const char *src, void *dst, int length);
 extern int bin2hex(const void *src, char *dst, int length);
 
@@ -45,6 +45,6 @@ extern const char *winerror(int);
 #define sockinuse(x) ((x) == EADDRINUSE)
 #endif
 
-extern unsigned int bitfield_to_int(const void *bitfield, size_t size);
+extern unsigned int bitfield_to_int(const void *bitfield, size_t size) __attribute__((__warn_unused_result__));
 
-#endif /* __MESHLINK_UTILS_H__ */
+#endif