From 12b2412c5217b105a86ccda57f261a33fcfd4d62 Mon Sep 17 00:00:00 2001
From: Kamil Dudka <kdudka@redhat.com>
Date: Tue, 9 Nov 2010 17:04:04 +0100
Subject: ftp: treat server's response 421 as CURLE_OPERATION_TIMEDOUT

Bug: https://bugzilla.redhat.com/650255
Reported by: Simon H.
---
 lib/ftp.c | 6 ++++++
 1 file changed, 6 insertions(+)

(limited to 'lib')

diff --git a/lib/ftp.c b/lib/ftp.c
index d79878e82..416e5ecfa 100644
--- a/lib/ftp.c
+++ b/lib/ftp.c
@@ -425,6 +425,12 @@ static CURLcode ftp_readresp(curl_socket_t sockfd,
   if(ftpcode)
     *ftpcode = code;
 
+  if(421 == code)
+    /* 421 means "Service not available, closing control connection." and FTP
+     * servers use it to signal that idle session timeout has been exceeded.
+     * If we ignored the response, it could end up hanging in some cases. */
+    return CURLE_OPERATION_TIMEDOUT;
+
   return result;
 }
 
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