From 7b614b3b59867f8524630adcde94eacaeb0cfcd8 Mon Sep 17 00:00:00 2001
From: "Roger A. Light" <roger@atchoo.org>
Date: Fri, 15 Oct 2021 15:51:32 +0100
Subject: [PATCH] Move to end of file on append, when on Windows.

---
 lib/misc_mosq.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/lib/misc_mosq.c b/lib/misc_mosq.c
index 1a9c7993..5004125a 100644
--- a/lib/misc_mosq.c
+++ b/lib/misc_mosq.c
@@ -116,6 +116,9 @@ FILE *mosquitto__fopen(const char *path, const char *mode, bool restrict_read)
 				_close(fd);
 				return NULL;
 			}
+			if(mode[0] == 'a'){
+				fseek(fptr, 0, SEEK_END);
+			}
 			return fptr;
 
 		}else {