Currently, http-socket uses a `parse_url` method which only works correctly with IPv4 hosts (e.g. `http://192.168.1.1:3000`). When using an IPv6 host (e.g. `http://[abcd::1]:3000`), the port number is not parsed due to a pointer increment error, which leads to the algorithm assuming a default port of 80 even when the user code has specified otherwise. This fix provides full URL parsing for IPv6 hosts, and does not break IPv4 functionality.
Simon Duquennoy
Marco Casaroli
Mark Solters
Adam Dunkels