From bd45e75d994502097185cc5970885675c9e79c86 Mon Sep 17 00:00:00 2001
From: Michael de Hoog <michael.dehoog@coinbase.com>
Date: Sat, 22 Aug 2020 18:51:43 -0700
Subject: [PATCH] Append a "host" attribute to error responses

---
 src/mongo/db/service_entry_point_common.cpp | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/mongo/db/service_entry_point_common.cpp b/src/mongo/db/service_entry_point_common.cpp
index 81ab2961805dc..9b5cfd26ffdcc 100644
--- a/src/mongo/db/service_entry_point_common.cpp
+++ b/src/mongo/db/service_entry_point_common.cpp
@@ -99,6 +99,7 @@
 #include "mongo/util/duration.h"
 #include "mongo/util/fail_point.h"
 #include "mongo/util/scopeguard.h"
+#include "mongo/util/net/socket_utils.h"
 
 #include <fmt/format.h>
 
@@ -214,6 +215,7 @@ void generateErrorResponse(OperationContext* opCtx,
     // so we need to reset it to a clean state just to be sure.
     replyBuilder->reset();
     replyBuilder->setCommandReply(exception.toStatus(), extraFields);
+    replyBuilder->getBodyBuilder().append("host", getHostNameCachedAndPort());
     replyBuilder->getBodyBuilder().appendElements(replyMetadata);
 }