test server kill skt with minus 1

The client spams the server with mirror protocol content
and then closes the connection.  However the server wants to
send that content back to all the mirror protocol
connections, including the one that closed.

The result is during the send back phase we usually see an
error trying to send to the close client connection. Because
we don't return -1, we don't close it on server side and the
error repeats a lot before finally closing.  This is a side-
effect of a recent patch to drain pending input before
really closing a dead connection.

This patch just changes it to return -1 on the failed send
attempt assertively closing the connection.

Signed-off-by: Andy Green <andy.green@linaro.org>
handle http union transition properly

There's no proper transition to http union state until now.

It only becomes apparant there's a problem when you try to
return -1 from the HTTP callback, during the close action
it will try to close() a nonsense, nonzero fd pointer in
the uninitialized u.http union member.

This patch takes a copy of the allocated headers struct from
the u.hdr union state, transitions to u.http clearing down u
and then calls the HTTP callback with URI args pointing to
the still-in-scope ah allocation.  After the call, the copy ah
is freed.

That makes sure we are in the correct union state while still
giving the HTTP callback access to the URI without having to
copy it around.

Reported-by: Edwin can den Oetelaar <oetelaar.automatisering@gmail.com>
Signed-off-by: Andy Green <andy.green@linaro.org>
remove header name buffer

The header name buffer and its max length handling has actually
been unused since the minilex parser was introduced.  We hold
parsing state in the lex-type parts and don't need to store or
worry about max length, since the parser will let us know as
soon as it can't be a match for the valid header names.

This strips it out reducing the per-connection allocation for
x86_64 with default configure from 224 to 160.

Signed-off-by: Andy Green <andy.green@linaro.org>
remove current_alloc_len

Signed-off-by: Andy Green <andy.green@linaro.org>
minor type optimizations

Signed-off-by: Andy Green <andy.green@linaro.org>
migrate client hs and c_port into ah

Signed-off-by: Andy Green <andy.green@linaro.org>
fix no extensions build

Signed-off-by: Andy Green <andy.green@linaro.org>
restrict http send buffer to 4096

send() is able to complete but not send everything asked...
we don't deal with that yet.  On an ARM9 board, leaf.jpg
failed because the send() only accepted 7240 of 8192... not
a failure but it implies reporting partial send to the
caller.  Work around by keeping the send buffer at 4096.

Signed-off-by: Andy Green <andy.green@linaro.org>
trim proxy ads plus hostname stg

128 should be fine for hostname and proxy ads

Signed-off-by: Andy Green <andy.green@linaro.org>
update arm build stats

Clean out the historical numbers, update info

Signed-off-by: Andy Green <andy.green@linaro.org>
remove lws_ensure_user_space from public api change return

The function has a logical problem when the size of the requested
allocation is 0, it will return NULL which is overloaded as
failure.

Actually the whole function is evil as an api, this patch moves
it out of the public API space and fixes it to return 0 for
success or 1 for fail.  Private code does not need to to return
wsi->user_space and public code should only get that from the
callback as discussed on trac recently.

Thanks to Edwin for debugging the problem.

Reported-by: Edwin van den Oetelaar <oetelaar.automatisering@gmail.com>
Signed-off-by: Andy Green <andy.green@linaro.org>
document ensure_user_space going private

Signed-off-by: Andy Green <andy.green@linaro.org>
add FindGit.cmake

Signed-off-by: Andy Green <andy.green@linaro.org>
move cms cmake addition to cmake module paths earlier

Signed-off-by: Edwin van den Oetelaar <oetelaar.automatisering@gmail.com>