From 5bdbde0b919bd73080e8f323950b0a42c42f2b01 Mon Sep 17 00:00:00 2001
From: DL6ER <dl6er@dl6er.de>
Date: Sun, 23 Feb 2025 19:37:53 +0100
Subject: [PATCH] Set socket receive buffer to 1 KB to avoid (near) endless
 queueing of NTP requests

Signed-off-by: DL6ER <dl6er@dl6er.de>
---
 src/ntp/server.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/src/ntp/server.c b/src/ntp/server.c
index cd882bdb0..f2db8188e 100644
--- a/src/ntp/server.c
+++ b/src/ntp/server.c
@@ -309,6 +309,11 @@ static void *ntp_bind_and_listen(void *param)
 	setsockopt(s, SOL_SOCKET, SO_REUSEPORT, &optval, sizeof(optval));
 #endif
 
+	// Set socket receive buffer to 1 KB to avoid (near) endless queueing of
+	// NTP requests
+	const int recvbuf = 1024;
+	setsockopt(s, SOL_SOCKET, SO_RCVBUF, &recvbuf, sizeof(recvbuf));
+
 	// Bind the socket to the NTP port
 	char ipstr[INET6_ADDRSTRLEN + 1];
 	memset(ipstr, 0, sizeof(ipstr));