update license

Author: brentru

LICENSE

@@ -1,21 +1,7 @@
-The MIT License (MIT)
+Copyright (c) 2010 Arduino LLC. All right reserved.
 
-Copyright (c) 2020 Brent Rubell for Adafruit Industries
+This library is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 2.1 of the License, or (at your option) any later version.
 
-Permission is hereby granted, free of charge, to any person obtaining a copy
-of this software and associated documentation files (the "Software"), to deal
-in the Software without restriction, including without limitation the rights
-to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-copies of the Software, and to permit persons to whom the Software is
-furnished to do so, subject to the following conditions:
+This library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details.
 
-The above copyright notice and this permission notice shall be included in all
-copies or substantial portions of the Software.
-
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
-SOFTWARE.
+You should have received a copy of the GNU Lesser General Public License along with this library; if not, write to the Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA

README.rst

@@ -113,3 +113,13 @@ Documentation
 =============
 
 For information on building library documentation, please check out `this guide <https://learn.adafruit.com/creating-and-sharing-a-circuitpython-library/sharing-our-docs-on-readthedocs#sphinx-5-1>`_.
+
+License
+=============
+
+This library was written by `Arduino LLC<https://github.com/arduino-libraries/Ethernet/blob/master/AUTHORS>`_. We've converted it to work
+with `CircuitPython<https://circuitpython.org/>`_ and made changes so it works similarly to `CircuitPython's WIZNET5k wrapper for the WIZnet
+5500 Ethernet interface<https://circuitpython.readthedocs.io/en/latest/shared-bindings/wiznet/wiznet5k.html>`_ and CPython's `Socket low-level
+networking interface module<https://docs.python.org/3.8/library/socket.html>`_.
+
+This open source code is licensed under the LGPL license (see LICENSE for details).

adafruit_wiznet5k/adafruit_wiznet5k.py

@@ -1,8 +1,10 @@
 # The MIT License (MIT)
 #
+# Copyright (c) 2010 WIZnet
+# Copyright (c) 2010 Arduino LLC
 # Copyright (c) 2008 Bjoern Hartmann
 # Copyright 2018 Paul Stoffregen
-# Copyright (c) 2020 Brent Rubell for Adafruit Industries
+# Modified by Brent Rubell for Adafruit Industries, 2020
 #
 # Permission is hereby granted, free of charge, to any person obtaining a copy
 # of this software and associated documentation files (the "Software"), to deal
@@ -27,7 +29,7 @@
 
 Pure-Python interface for WIZNET 5k ethernet modules.
 
-* Author(s): Bjoern Hartmann, Paul Stoffregen, Brent Rubell
+* Author(s): WIZnet, Arduino LLC, Bjoern Hartmann, Paul Stoffregen, Brent Rubell
 
 Implementation Notes
 --------------------
@@ -288,9 +290,11 @@ def ifconfig(self):
         """Returns the network configuration as a tuple."""
         # set subnet and gateway addresses
         for octet in range(0, 4):
-            subnet_mask += self.read(REG_SUBR+octet, 0x04, subnet_mask[octet])
-            gw_addr += self.read(REG_GAR+octet, 0x04, gw_addr[octet])
-        params = (self.ip_address, subnet_mask, gw_addr, self._dns)
+            self._pbuff += self.read(REG_SUBR+octet, 0x04)
+        for octet in range(0, 4):
+            self._pbuff[3+octet] += self.read(REG_GAR+octet, 0x04)
+
+        params = (self.ip_address, self._pbuff[0:3], self._pbuff[3:7], self._dns)
         return params
 
     @ifconfig.setter
@@ -413,6 +417,7 @@ def write(self, addr, callback, data):
 
     # Socket-Register API
     def udp_remaining(self):
+        """Returns amount of bytes remaining in a udp socket."""
         if self._debug:
             print("* UDP Bytes Remaining: ", UDP_SOCK['bytes_remaining'])
         return UDP_SOCK['bytes_remaining']