From 079b05ce06b6800b43400478277ba884675bfe9d Mon Sep 17 00:00:00 2001
From: Peter Cai <peter@typeblog.net>
Date: Tue, 6 Apr 2021 08:29:16 +0800
Subject: [PATCH] server: explain why Content-Length is needed

---
 src/server.rs | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/server.rs b/src/server.rs
index 47687ea..54b05d7 100644
--- a/src/server.rs
+++ b/src/server.rs
@@ -104,6 +104,7 @@ impl Server {
         err_response!(resp_headers
             .append("Content-Type", resp_content_type)
             .map_err(|_| "Could not create headers".to_string()));
+        // Content-Length is needed in case the DNS message itself contained end-of-string or end-of-line
         err_response!(resp_headers
             .append("Content-Length", &resp_body.len().to_string())
             .map_err(|_| "Could not create headers".to_string()));