From 170f5b6229daabf147dd0382fce6765af15f77d8 Mon Sep 17 00:00:00 2001
From: Miran <narimiran@disroot.org>
Date: Tue, 14 Jul 2020 08:18:02 +0200
Subject: [PATCH] asyncftpclient.nim - don't assume a sufficiend line length
 (#14973)

(cherry picked from commit f4f21c89e57115a57ed97e30a9b9fe6c901ae453)
---
 lib/pure/asyncftpclient.nim | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/pure/asyncftpclient.nim b/lib/pure/asyncftpclient.nim
index 51f1825758..a195e628a8 100644
--- a/lib/pure/asyncftpclient.nim
+++ b/lib/pure/asyncftpclient.nim
@@ -134,7 +134,7 @@ proc expectReply(ftp: AsyncFtpClient): Future[TaintedString] {.async.} =
   var line = await ftp.csock.recvLine()
   result = TaintedString(line)
   var count = 0
-  while line[3] == '-':
+  while line.len > 3 and line[3] == '-':
     ## Multi-line reply.
     line = await ftp.csock.recvLine()
     string(result).add("\n" & line)