Add __attribute__((warn_unused_result)) to crypto functions.

[tinc] / src / ecdh.h

diff --git a/src/ecdh.h b/src/ecdh.h
index 881ee92..fbd4729 100644 (file)
--- a/src/ecdh.h
+++ b/src/ecdh.h
@@ -28,7 +28,7 @@ typedef struct ecdh ecdh_t;
 #endif
 
 extern ecdh_t *ecdh_generate_public(void *pubkey) __attribute__ ((__malloc__));
-extern bool ecdh_compute_shared(ecdh_t *ecdh, const void *pubkey, void *shared);
+extern bool ecdh_compute_shared(ecdh_t *ecdh, const void *pubkey, void *shared) __attribute__ ((__warn_unused_result__));
 extern void ecdh_free(ecdh_t *ecdh);
 
 #endif