From d497b77a18c9dee791e9dae8631ba25e3d707f01 Mon Sep 17 00:00:00 2001
From: Sergey Matveev <stargrave@stargrave.org>
Date: Thu, 10 Dec 2020 17:56:05 +0300
Subject: [PATCH] Precaution not to open the same file

---
 main.go | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/main.go b/main.go
index b5bd5f5..23a3acc 100644
--- a/main.go
+++ b/main.go
@@ -134,7 +134,7 @@ func upload(w http.ResponseWriter, r *http.Request) {
 	tai64n.FromTime(t, ts)
 	tai := ts.Encode()[1:]
 	fnOrig := p.FileName()
-	fd, err := os.OpenFile(tai+".part", os.O_WRONLY|os.O_CREATE, 0666)
+	fd, err := os.OpenFile(tai+".part", os.O_WRONLY|os.O_CREATE|os.O_EXCL, 0666)
 	if err != nil {
 		log.Println(r.RemoteAddr, tai, fnOrig, err)
 		return
-- 
2.44.0