Add __attribute__((warn_unused_result)) to crypto functions.

[meshlink] / src / prf.h

diff --git a/src/prf.h b/src/prf.h
index f7ecc644f92a2c2834f5edd0d473ccd7373e2262..ef4b99bbf8639a525ff2d221abcd7bf27710c33d 100644 (file)
--- a/src/prf.h
+++ b/src/prf.h
@@ -20,6 +20,6 @@
 #ifndef __TINC_PRF_H__
 #define __TINC_PRF_H__
 
-extern bool prf(const char *secret, size_t secretlen, char *seed, size_t seedlen, char *out, size_t outlen);
+extern bool prf(const char *secret, size_t secretlen, char *seed, size_t seedlen, char *out, size_t outlen) __attribute__ ((__warn_unused_result__));
 
 #endif