Fixed bug where the DHCP client didn't correctly handle a response containing more than one DNS server address. Fixes issue 569.

Author: amcewen

Dhcp.cpp

@@ -271,11 +271,19 @@ uint8_t DhcpClass::parseDHCPResponse(unsigned long responseTimeout, uint32_t& tr
                 case routersOnSubnet :
                     opt_len = _dhcpUdpSocket.read();
                     _dhcpUdpSocket.read(_dhcpGatewayIp, 4);
+                    for (int i = 0; i < opt_len-4; i++)
+                    {
+                        _dhcpUdpSocket.read();
+                    }
                     break;
 
                 case dns :
                     opt_len = _dhcpUdpSocket.read();
                     _dhcpUdpSocket.read(_dhcpDnsServerIp, 4);
+                    for (int i = 0; i < opt_len-4; i++)
+                    {
+                        _dhcpUdpSocket.read();
+                    }
                     break;
 
                 case dhcpServerIdentifier :