George Comninos provided a fix that calls the progress meter when waiting

for FTP command responses take >1 second.

lib/ftp.c

@@ -238,7 +238,7 @@ CURLcode Curl_GetFTPResponse(ssize_t *nreadp, /* return number of bytes read */
 
     if(!ftp->cache) {
       readfd = rkeepfd;		   /* set every lap */
-      interval.tv_sec = timeout;
+      interval.tv_sec = 1; /* use 1 second timeout intervals */
       interval.tv_usec = 0;
 
       switch (select (sockfd+1, &readfd, NULL, NULL, &interval)) {
@@ -247,9 +247,10 @@ CURLcode Curl_GetFTPResponse(ssize_t *nreadp, /* return number of bytes read */
         failf(data, "Transfer aborted due to select() error: %d", errno);
         break;
       case 0: /* timeout */
-        result = CURLE_OPERATION_TIMEDOUT;
-        failf(data, "Transfer aborted due to timeout");
-        break;
+        if(Curl_pgrsUpdate(conn))
+          return CURLE_ABORTED_BY_CALLBACK;
+        continue; /* just continue in our loop for the timeout duration */
+
       default:
         break;
       }
@@ -2117,6 +2118,11 @@ CURLcode Curl_ftp(struct connectdata *conn)
   ftp = conn->proto.ftp;
   conn->size = -1; /* make sure this is unknown at this point */
 
+  Curl_pgrsSetUploadCounter(data, 0);
+  Curl_pgrsSetDownloadCounter(data, 0);
+  Curl_pgrsSetUploadSize(data, 0);
+  Curl_pgrsSetDownloadSize(data, 0);
+
   /*  fixed : initialize ftp->dirs[xxx] to NULL !
       is done in Curl_ftp_connect() */
 

lib/progress.c

@@ -172,18 +172,20 @@ void Curl_pgrsSetUploadCounter(struct SessionHandle *data, double size)
 
 void Curl_pgrsSetDownloadSize(struct SessionHandle *data, double size)
 {
-  if(size > 0) {
-    data->progress.size_dl = size;
+  data->progress.size_dl = size;
+  if(size > 0)
     data->progress.flags |= PGRS_DL_SIZE_KNOWN;
-  }
+  else
+    data->progress.flags &= ~PGRS_DL_SIZE_KNOWN;
 }
 
 void Curl_pgrsSetUploadSize(struct SessionHandle *data, double size)
 {
-  if(size > 0) {
-    data->progress.size_ul = size;
+  data->progress.size_ul = size;
+  if(size > 0)
     data->progress.flags |= PGRS_UL_SIZE_KNOWN;
-  }
+  else
+    data->progress.flags &= ~PGRS_UL_SIZE_KNOWN;
 }
 
 /* EXAMPLE OUTPUT to follow: