From fde0630217c9c3c903adf5dfb4855b4e22a2c265 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Juhani=20Krekel=C3=A4?= <juhani@krekelä.fi>
Date: Sat, 13 Jul 2019 19:39:11 +0300
Subject: [PATCH] fflush(3) ack info too

---
 ethermess-backend.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/ethermess-backend.c b/ethermess-backend.c
index 708a103..b608f57 100644
--- a/ethermess-backend.c
+++ b/ethermess-backend.c
@@ -844,6 +844,10 @@ void handle_ack(const unsigned char source_mac[6], const unsigned char *data, si
 		err(1, "printf");
 	}
 
+	if (fflush(stdout) == EOF) {
+		err(1, "fflush");
+	}
+
 	if (own_message_send_state == WAITING_ACK && msgid == own_message_msgid) {
 		own_message_send_state = IDLE;
 	}