+ Temporary fix in this-host-address: close the socket obtained from

port->socket.

+ read-crlf-line doesn't accept a timeout and it would be nonsense in
  copy-ascii-port->port anyway.

scheme/ftpd/ftpd.scm

@@ -974,13 +974,17 @@
 				    formatted-port))))))))
 
 (define (this-host-address)
-  (call-with-values
-   (lambda () 
-     (socket-address->internet-address 
-      (socket-local-address (port->socket (the-session-control-input-port) 
-					  protocol-family/internet))))
-   (lambda (host-address control-port)
-     host-address)))
+  (let ((socket (port->socket (the-session-control-input-port)
+			      protocol-family/internet)))
+    (call-with-values
+     (lambda () 
+       (socket-address->internet-address 
+	(socket-local-address socket)))
+     (lambda (host-address control-port)
+       (log (syslog-level debug) "Closing ~A ~A"
+	    (socket:inport socket) (socket:outport socket))
+       (close-socket socket)
+       host-address))))
 
 (define (handle-nlst arg)
   (log-command (syslog-level info) "NLST" arg)
@@ -1367,9 +1371,7 @@
 (define (copy-ascii-port->port input-port output-port)
   (let loop ()
     (let* ((line (read-crlf-line input-port
-				 #f
-				 90000    ; timeout
-				 500))    ; max interval
+				 #f))
 	   (length (string-length line)))
       (if (not (eof-object? line))
 	  (begin