From 09412116adabb0a466fbab89615ad663ca4e71d1 Mon Sep 17 00:00:00 2001
From: Maschell <Maschell@gmx.de>
Date: Sat, 8 Oct 2022 17:06:54 +0200
Subject: [PATCH] Fix resuming file uploads

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

diff --git a/src/ftp.c b/src/ftp.c
index 5867c2e..2c5a18b 100644
--- a/src/ftp.c
+++ b/src/ftp.c
@@ -579,7 +579,11 @@ static int32_t stor_or_append(client_t *client, FILE *f) {
 }
 
 static int32_t ftp_STOR(client_t *client, char *path) {
-    FILE *f = vrt_fopen(client->cwd, path, "wb");
+    char *openMode = "wb";
+    if (client->restart_marker) {
+        openMode = "r+";
+    }
+    FILE *f = vrt_fopen(client->cwd, path, openMode);
     int fd;
     if (f) {
         fd = fileno(f);