From f4b7e9ee700a701837153f7fc7d7372c63a626d8 Mon Sep 17 00:00:00 2001
From: Alex Hultman <alexhultman@gmail.com>
Date: Mon, 8 Jul 2019 09:07:28 +0200
Subject: [PATCH] Fix undefined store in formatMessage

---
 src/WebSocketProtocol.h | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/src/WebSocketProtocol.h b/src/WebSocketProtocol.h
index 3ffafd2..d3c4159 100644
--- a/src/WebSocketProtocol.h
+++ b/src/WebSocketProtocol.h
@@ -193,11 +193,13 @@ static inline size_t formatMessage(char *dst, const char *src, size_t length, Op
     } else if (reportedLength <= UINT16_MAX) {
         headerLength = 4;
         dst[1] = 126;
-        *((uint16_t *) &dst[2]) = cond_byte_swap<uint16_t>(reportedLength);
+        uint16_t tmp = cond_byte_swap<uint16_t>(reportedLength);
+        memcpy(&dst[2], &tmp, sizeof(uint16_t));
     } else {
         headerLength = 10;
         dst[1] = 127;
-        *((uint64_t *) &dst[2]) = cond_byte_swap<uint64_t>(reportedLength);
+        uint64_t tmp = cond_byte_swap<uint64_t>(reportedLength);
+        memcpy(&dst[2], &tmp, sizeof(uint64_t));
     }
 
     int flags = 0;