added support for path stat in ftp

lib/net/ftp.rb

@@ -1107,10 +1107,13 @@ def abort
 
     #
     # Returns the status (STAT command).
+    # pathname - when stat is invoked with pathname as a parameter it acts like
+    #            list but alot faster and over the same tcp session.
     #
-    def status
-      line = "STAT" + CRLF
-      print "put: STAT\n" if @debug_mode
+    def status(pathname=nil)
+      line = pathname ? "STAT #{pathname}" : "STAT"
+      line = line + CRLF
+      print "put: #{line.chomp}\n" if @debug_mode
       @sock.send(line, Socket::MSG_OOB)
       return getresp
     end

test/net/ftp/test_ftp.rb

@@ -1246,6 +1246,39 @@ def test_status
     end
   end
 
+  def test_status_path
+    commands = []
+    server = create_ftp_server { |sock|
+      sock.print("220 (test_ftp).\r\n")
+      commands.push(sock.gets)
+      sock.print("331 Please specify the password.\r\n")
+      commands.push(sock.gets)
+      sock.print("230 Login successful.\r\n")
+      commands.push(sock.gets)
+      sock.print("200 Switching to Binary mode.\r\n")
+      commands.push(sock.gets)
+      sock.print("213 End of status\r\n")
+    }
+    begin
+      begin
+        ftp = Net::FTP.new
+        ftp.read_timeout = 0.2
+        ftp.connect(SERVER_ADDR, server.port)
+        ftp.login
+        assert_match(/\AUSER /, commands.shift)
+        assert_match(/\APASS /, commands.shift)
+        assert_equal("TYPE I\r\n", commands.shift)
+        ftp.status "/"
+        assert_equal("STAT /\r\n", commands.shift)
+        assert_equal(nil, commands.shift)
+      ensure
+        ftp.close if ftp
+      end
+    ensure
+      server.close
+    end
+  end
+
   def test_pathnames
     require 'pathname'