(http://curl.haxx.se/bug/view.cgi?id=1481217), with follow-ups by Michele Bini
and David Byron. libcurl previously wrongly used GetLastError() on windows to
get error details after socket-related function calls, when it really should
use WSAGetLastError() instead.

When changing to this, the former function Curl_ourerrno() is now instead
called Curl_sockerrno() as it is necessary to only use it to get errno from
socket-related functions as otherwise it won't work as intended on Windows.

(http://curl.haxx.se/bug/view.cgi?id=1480821) He found and identified a
problem with how libcurl dealt with GnuTLS and a case where gnutls returned
GNUTLS_E_AGAIN indicating it would block. It would then return an unexpected
return code, making Curl_ssl_send() confuse the upper layer - causing random
28 bytes trash data to get inserted in the transfered stream.

The proper fix was to make the Curl_gtls_send() function return the proper
return codes that the callers would expect. The Curl_ossl_send() function
already did this.

#ifdef around WSAEDISCON in strerror.c.

(more logical).

HAVE_PROCESS_H added for all except scc.

systems

transfers. They are done on non-windows systems and translate CRLF to LF.

the stream (wrongly) lacks a proper zlib header. This seems to be the case on
too many actual server implementations.

can and will use more than one socket

to allow/support character conversions

the control connection when using FTP, for example when you remove an easy
handle from a multi stack.

to my previous brain-damaged version)

one

about what sockets to wait for what action on

CURLOPT_TIMEOUT, the _longer_ time would wrongly be used for the SSL
connection time-out!

code rearrange to fit the future better.

attempt to silence picky compilers when assigning data pointers to a function
pointer variable

unsigned chars

(http://curl.haxx.se/mail/lib-2006-02/0154.html) by adding the NTLM hash
function in addition to the LM one and making some other adjustments in the
order the different parts of the data block are sent in the Type-2 reply.
Inspiration for this work was taken from the Firefox NTLM implementation.

I edited the existing 21(!) NTLM test cases to run fine with these news. Due
to the fact that we now properly include the host name in the Type-2 message
the test cases now only compare parts of that chunk.

occurred when asking libcurl to follow HTTP redirects and the original URL had
more than one question mark (?). Added test case 276 to verify.

avoid kiling hugehelp.c when not built from CVS.