Requested by Johnny Luong on the libcurl list.

The text "additional stuff not fine" text was added for debug purposes a
while ago, but it isn't really helping anyone and for some reason some
Linux distributions provide their libcurls built with debug info still
present and thus (far too many) users get to read this info.

6 new bugfixes and 3 more contributors...

The logic previously checked for a started NTLM negotiation only for
host and not also with proxy, leading to problems doing POSTs over a
proxy NTLM that are larger than 2000 bytes. Now it includes proxy in the
check.

Bug: http://curl.haxx.se/bug/view.cgi?id=3582321
Reported by: John Suprock

The bug report claimed it didn't work. This problem was probably fixed
in 473003fb.

Bug: http://curl.haxx.se/bug/view.cgi?id=3581898

The existing logic only cut off the fragment from the separate 'path'
buffer which is used when sending HTTP to hosts. The buffer that held
the full URL used for proxies were not dealt with. It is now.

Test case 5 was updated to use a fragment on a URL over a proxy.

Bug: http://curl.haxx.se/bug/view.cgi?id=3579813

Bug: http://curl.haxx.se/bug/view.cgi?id=3579286

With the reversion of ce8311c7 and the new clear logic, this flaw
is present and we allow it.

As a handle can be re-used after having done HTTP auth in a previous
request, it must make sure to clear out the HTTP types that aren't
wanted in this new request.

This test case verifies that bug 3582718 is fixed.

Bug: http://curl.haxx.se/bug/view.cgi?id=3582718
Reported by: Nick Zitzmann (originally)

This reverts commit ce8311c7.

The commit made test 2024 work but caused a regression with repeated
Digest authentication. We need to fix this differently.

After a research team wrote a document[1] that found several live source
codes out there in the wild that misused the CURLOPT_SSL_VERIFYHOST
option thinking it was a boolean, this change now bans 1 as a value and
will make libcurl return error for it.

1 was never a sensible value to use in production but was introduced
back in the days to help debugging. It was always documented clearly
this way.

1 was never supported by all SSL backends in libcurl, so this cleanup
makes the treatment of it unified.

The report's list of mistakes for this option were all PHP code and
while there's a binding layer between libcurl and PHP, the PHP team has
decided that they have an as thin layer as possible on top of libcurl so
they will not alter or specifically filter a 'TRUE' value for this
particular option. I sympathize with that position.

[1] = http://daniel.haxx.se/blog/2012/10/25/libcurl-claimed-to-be-dangerous/

Since automake 1.12.4, the warnings are issued on running automake:

  warning: 'INCLUDES' is the old name for 'AM_CPPFLAGS' (or '*_CPPFLAGS')

Avoid INCLUDES and roll these flags into AM_CPPFLAGS.

Compile tested on:
  Ubuntu 10.04 (automake 1:1.11.1-1)
  Ubuntu 12.04 (automake 1:1.11.3-1ubuntu2)
  Arch Linux (automake 1.12.4)

Oops, my previous commit broke builds with krb support.

As pointed out in Bug report #3579064, curl_multi_perform() would
wrongly use a blocking mechanism internally for some commands which
could lead to for example a very long block if the LIST response never
showed.

The solution was to make sure to properly continue to use the multi
interface non-blocking state machine.

The new test 1501 verifies the fix.

Bug: http://curl.haxx.se/bug/view.cgi?id=3579064
Reported by: Guido Berhoerster

This patch restores the original behavior instead of always
falling back to x86 if no MACHINE-type was specified.

The URL we used before is the one that goes directly to 'add' a bug
report, but since you can only do that after first having logged in to
sourceforge, the link often doesn't work for visitors.

Bug: http://curl.haxx.se/bug/view.cgi?id=3582408
Reported by: Oscar Norlander

Bug: http://curl.haxx.se/bug/view.cgi?id=3582407
Reported by: Oscar Norlander

Since libssh2 supports now agent stuff it also depends on user32.lib.
Posted to the list by Jan Ehrhardt.

When given a string as 'srp' it didn't work, but required 'SRP'.
Starting now, the check disregards casing.

Bug: http://curl.haxx.se/bug/view.cgi?id=3578418
Reported by: Jeff Connelly

Back in those days the public ares.h header didn't include the
ares_version.h header so it needs to be included here.

Bug: http://curl.haxx.se/bug/view.cgi?id=3577710

Previously the Metalink code used Apple's CommonCrypto library only if
curl was built using the --with-darwinssl option. Now we use CommonCrypto
on all Apple operating systems including Tiger or later, or iOS 5 or
later, so you don't need to build --with-darwinssl anymore. Also rolled
out this change to libcurl's md5 code.

It does so in a streaming manner using the "Streaming HTML parser".

The iOS build was broken by a reference to a function that only existed
under OS X; fixed. Also fixed a hard-to-reproduce problem where, if the
server disconnected before libcurl got the chance to hang up first and
SecureTransport was in use, then we'd raise an error instead of failing
gracefully.