From: Niels Möller <nisse@lysator.liu.se>
Date: Sun, 22 Jun 2025 15:22:00 +0000 (+0200)
Subject: Use alignas for hmac inner and outer state.
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=7b058a11478c2800c14898e77a1c46a337a440a9;p=thirdparty%2Fnettle.git

Use alignas for hmac inner and outer state.
---

diff --git a/hmac.h b/hmac.h
index 8f6f3dbc..e7ecc63d 100644
--- a/hmac.h
+++ b/hmac.h
@@ -34,6 +34,8 @@
 #ifndef NETTLE_HMAC_H_INCLUDED
 #define NETTLE_HMAC_H_INCLUDED
 
+#include <stdalign.h>
+
 #include "nettle-meta.h"
 
 #include "gosthash94.h"
@@ -83,10 +85,10 @@ extern "C" {
 #define hmac_sm3_update nettle_hmac_sm3_update
 #define hmac_sm3_digest nettle_hmac_sm3_digest
 
-#define _NETTLE_HMAC_CTX(type) {	\
-    char outer[offsetof (type, index)];	\
-    char inner[offsetof (type, index)];	\
-    type state;				\
+#define _NETTLE_HMAC_CTX(type) {			\
+    alignas(type) char outer[offsetof (type, index)];	\
+    alignas(type) char inner[offsetof (type, index)];	\
+    type state;						\
   }
 
 /* hmac-md5 */