Before this change, an 8-bit value was guaranteed to be lesser than the
size of this array (256). Instead of removing the check, I make it
meaningful by reducing the size of the array.
* net_http: refactor net_http_new
The goal is to move calls to getaddrinfo() and connect() into
net_http_update(). This will make it possible for them to be replaced
with non-blocking alternatives later.
The net_http calling pattern right now allows callers to create the
http_connection_t, call net_http_new() which creates the http_t from
the http_connection_t, free the http_connection_t, and then start
calling net_http_update(). In order to preserve that, the http_t needs
to copy the values out of the http_connection_t on create. This also
preserves the http_connection_t values instead of freeing them, so the
connection would be able to be used later.
* net_http: implement dns cache
* net_http: separate out address resolution, connect, and request send
* net_http: perform getaddrinfo on separate thread
* net_http: implement basic connection pool
* net_http: refactor receive calls to read faster, do fewer reallocs
* net_http: build fix for platforms without SSL
* net_http: build fix for non-griffin builds
* net_http: build fix for non-threaded platforms
== DETAILS
Previous work to clean up the HTTP networking code surfaced a bug
in `socket_connect_with_timeout()` that caused connections to
immediately fail. Specifically, achievements stopped working because
the http task code path was rewritten to use
`socket_connect_with_timeout` instead of `socket_connect`.
The bug appears to come down to an unsupported socket option. The final
check is to try to read `SO_ERROR` from the socket, and on WIIU the
`getsockopt()` call returns -1 and sets `lastsocketerr()` (WIIU's
equivalent to errno) to 16.
The fix is to change the logic to only abort the connection if that
`getsockopt()` call succeeds *and* the error is set.