Enable and fix many extra warnings supported by GCC and Clang.

[tinc] / src / cipher.c

diff --git a/src/cipher.c b/src/cipher.c
index 0bab3bd..5ac790a 100644 (file)
--- a/src/cipher.c
+++ b/src/cipher.c
@@ -1,9 +1,30 @@
+/*
+    crypto.c -- stub cipher handling functions
+    Copyright (C) 2007-2022 Guus Sliepen <guus@tinc-vpn.org>
+
+    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.,
+    51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+*/
+
+#include "system.h"
+
 #include "cipher.h"
 #include "xalloc.h"
 
 #ifndef DISABLE_LEGACY
 
-cipher_t *cipher_alloc() {
+cipher_t *cipher_alloc(void) {
        return xzalloc(sizeof(cipher_t));
 }