From 74bcf58458e5178f3f4123112a3d179ed408061c Mon Sep 17 00:00:00 2001
From: Frank Denis <github@pureftpd.org>
Date: Sat, 31 Dec 2016 21:04:39 +0100
Subject: [PATCH] Reduce the number of TFO buckets, set it to 1 on MacOS

---
 src/ftpd.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/src/ftpd.c b/src/ftpd.c
index 92470886..5b1f0351 100644
--- a/src/ftpd.c
+++ b/src/ftpd.c
@@ -5424,7 +5424,11 @@ static void standalone_server(void)
         }
 # ifdef TCP_FASTOPEN
         {
-            int tfo = maxusers > 0U ? 3U + maxusers / 8U : DEFAULT_BACKLOG;
+#  ifdef __APPLE__
+            int tfo = 1;
+#  else
+            int tfo = 5;
+#  endif
             setsockopt(listenfd, IPPROTO_TCP, TCP_FASTOPEN,
                        (void *) &tfo, sizeof tfo);
         }