From 9d1476a760efb95486aff866045371f17cd6661d Mon Sep 17 00:00:00 2001
From: Cory McWilliams <cory@unprompted.com>
Date: Sat, 30 Dec 2023 21:41:48 +0000
Subject: [PATCH] Slight memcpy paranoia.

git-svn-id: https://www.unprompted.com/svn/projects/tildefriends/trunk@4713 ed5197a5-7fde-0310-b194-c3ffbd925b24
---
 src/http.c | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/src/http.c b/src/http.c
index a8d7bf8a..803ef27e 100644
--- a/src/http.c
+++ b/src/http.c
@@ -230,9 +230,12 @@ static void _http_add_body_bytes(tf_http_connection_t* connection, const void* d
 {
 	if (connection->is_websocket)
 	{
-		connection->body = tf_realloc(connection->body, connection->body_length + size);
-		memcpy((char*)connection->body + connection->body_length, data, size);
-		connection->body_length += size;
+		if (size)
+		{
+			connection->body = tf_realloc(connection->body, connection->body_length + size);
+			memcpy((char*)connection->body + connection->body_length, data, size);
+			connection->body_length += size;
+		}
 
 		while (connection->body_length >= 2)
 		{