- Siegfried Gyuricsko found out that the curl manual said --retry would retry

on FTP errors in the transient 5xx range. Transient FTP errors are in the
  4xx range. The code itself only tried on 5xx errors that occured _at login_.
  Now the retry code retries on all FTP transfer failures that ended with a
  4xx response.

  (http://curl.haxx.se/bug/view.cgi?id=2911279)

CHANGES

@@ -7,6 +7,14 @@
                                   Changelog
 
 Daniel Stenberg (10 Dec 2009)
+- Siegfried Gyuricsko found out that the curl manual said --retry would retry
+  on FTP errors in the transient 5xx range. Transient FTP errors are in the
+  4xx range. The code itself only tried on 5xx errors that occured _at login_.
+  Now the retry code retries on all FTP transfer failures that ended with a
+  4xx response.
+
+  (http://curl.haxx.se/bug/view.cgi?id=2911279)
+
 - Constantine Sapuntzakis figured out a case which would lead to libcurl
   accessing alredy freed memory and thus crash when using HTTPS (with
   OpenSSL), multi interface and the CURLOPT_DEBUGFUNCTION and a certain order

RELEASE-NOTES

@@ -31,6 +31,7 @@ This release includes the following bugfixes:
  o TFTP BLKSIZE
  o Expect: 100-continue handling when set by the application
  o multi interface with OpenSSL read already freed memory when closing down
+ o --retry didn't do right for FTP transient errors
 
 This release includes the following known bugs:
 
@@ -42,6 +43,6 @@ advice from friends like these:
  Yang Tse, Kamil Dudka, Christian Schmitz, Constantine Sapuntzakis,
  Marco Maggi, Camille Moncelier, Claes Jakobsson, Kevin Baughman,
  Marc Kleine-Budde, Jad Chamcham, Bjorn Augustsson, David Byron,
- Markus Koetter, Chad Monroe, Martin Storsjo
+ Markus Koetter, Chad Monroe, Martin Storsjo, Siegfried Gyuricsko
 
         Thanks! (and sorry if I forgot to mention someone)

docs/curl.1

@@ -1079,7 +1079,7 @@ timestamp.
 If a transient error is returned when curl tries to perform a transfer, it
 will retry this number of times before giving up. Setting the number to 0
 makes curl do no retries (which is the default). Transient error means either:
-a timeout, an FTP 5xx response code or an HTTP 5xx response code.
+a timeout, an FTP 4xx response code or an HTTP 5xx response code.
 
 When curl is about to retry a transfer, it will first wait one second and then
 for all forthcoming retries it will double the waiting time until it reaches

src/main.c

@@ -5066,14 +5066,14 @@ operate(struct Configurable *config, int argc, argv_item_t argv[])
                 }
               }
             } /* if CURLE_OK */
-            else if(CURLE_LOGIN_DENIED == res) {
+            else if(res) {
               curl_easy_getinfo(curl, CURLINFO_RESPONSE_CODE, &response);
 
-              if(response/100 == 5)
+              if(response/100 == 4)
                 /*
                  * This is typically when the FTP server only allows a certain
-                 * amount of users and we are not one of them. It mostly
+                 * amount of users and we are not one of them.  All 4xx codes
-                 * returns 530 in this case, but all 5xx codes are transient.
+                 * are transient.
                  */
                 retry = RETRY_FTP;
             }

tests/data/test196

@@ -2,7 +2,7 @@
 # Server-side
 <reply>
 <servercmd>
-REPLY PASS 530 temporarily not available
+REPLY PASS 430 temporarily not available
 </servercmd>
 </reply>