From 7cb05123f28c11b05fc7de36324e9749141bf102 Mon Sep 17 00:00:00 2001
From: Maxim Kulkin <maxim.kulkin@gmail.com>
Date: Mon, 4 Jan 2021 18:28:45 -0500
Subject: [PATCH] Optimize calling client_send_plainv when there is only one
 buffer

---
 src/server.c | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/src/server.c b/src/server.c
index 5f9c079..03deaab 100644
--- a/src/server.c
+++ b/src/server.c
@@ -1095,7 +1095,15 @@ void client_sendv(client_context_t *context, uint8_t n, const byte **data, size_
     if (context->encrypted) {
         client_send_encryptedv(context, n, data, data_sizes);
     } else {
-        client_send_plainv(context, n, data, data_sizes);
+        if (n == 1) {
+            int r = write(context->socket, data[0], data_sizes[0]);
+            if (r < 0) {
+                CLIENT_ERROR(context, "Failed to send response (errno %d)", errno);
+                return;
+            }
+        } else {
+            client_send_plainv(context, n, data, data_sizes);
+        }
     }
 }