These tests use an HTTP proxy so require that curl be built with HTTP
support.

The CURLOPT_USERAGENT and CURLOPT_MAXREDIRS options are only set if HTTP
support is available, so ignore them in tests where HTTP is not
guaranteed.

Broken a week ago in 6448f98c.

Closes https://github.com/curl/curl/pull/1337

- Show the HTTPS-proxy options on CURLE_SSL_CACERT if libcurl was built
  with HTTPS-proxy support.

Prior to this change those options were shown only if an HTTPS-proxy was
specified by --proxy, but that did not take into account environment
variables such as http_proxy, https_proxy, etc. Follow-up to e1187c42.

Bug: https://github.com/curl/curl/issues/1331
Reported-by: Nehal J Wani

... as we no longer use libidn

... by removing the else branch after a return, break or continue.

Closes #1310

- Auto-detect OpenSSL 1.1 libs

Closes https://github.com/curl/curl/pull/1322

... previously, docs/ was only a dist subdir, now also a build subdir.

Reported-by: Dan Fandrich
Bug: https://curl.haxx.se/mail/lib-2017-03/0017.html

Depend on the known behaviour of URLs for nonexistent files rather than
the undefined behaviour of URLs for directories (which fails on Windows).
The test isn't about file: URLs at all, so the URL used doesn't really
matter.

Otherwise, the contents will end up in the output and fail the
verification.

If a % ended the statement, the string's trailing NUL would be skipped
and memory past the end of the buffer would be accessed and potentially
displayed as part of the --write-out output. Added tests 1440 and 1441
to check for this kind of condition.

Reported-by: Brian Carpenter

- Add new option CURLOPT_SUPPRESS_CONNECT_HEADERS to allow suppressing
  proxy CONNECT response headers from the user callback functions
  CURLOPT_HEADERFUNCTION and CURLOPT_WRITEFUNCTION.

- Add new tool option --suppress-connect-headers to expose
  CURLOPT_SUPPRESS_CONNECT_HEADERS and allow suppressing proxy CONNECT
  response headers from --dump-header and --include.

Assisted-by: Jay Satiro
Assisted-by:  <CarloCannas@users.noreply.github.com>
Closes https://github.com/curl/curl/pull/783

A client MUST ignore any Content-Length or Transfer-Encoding header
fields received in a successful response to CONNECT.
"Successful" described as: 2xx (Successful). RFC 7231 4.3.6

Prior to this change such a case would cause an error.

In some ways this bug appears to be a regression since c50b878c. Prior to
that libcurl may have appeared to function correctly in such cases by
acting on those headers instead of causing an error. But that behavior
was also incorrect.

Bug: https://github.com/curl/curl/issues/1317


Reported-by:  <mkzero@users.noreply.github.com>

Broken a few days ago in 6448f98c.

Bug: https://curl.haxx.se/mail/lib-2017-03/0015.html

Do not call curl_easy_reset() between the requests, because the
auth state must be preserved for these tests.

Follow-up to 0afbcfd8

This prevents a "Descriptor is not a socket" error for WinSSL.

Reported-by:  <Antony74@users.noreply.github.com>
Reviewed-by: Jay Satiro

Fixes https://github.com/curl/curl/issues/1239

Follow-up to 5278462c
See https://github.com/curl/curl/issues/1095

This flag is meant for the current request based on authentication
state, once the request is done we can clear the flag.

Also change auth.multi to auth.multipass for better readability.

Fixes https://github.com/curl/curl/issues/1095
Closes https://github.com/curl/curl/pull/1326



Signed-off-by: Isaac Boukris <iboukris@gmail.com>
Reported-by: Michael Kaufmann

and try to add the top comment within an HTML comment in the hope
that it might get hidden if the text is kept

CID 1402159 and 1402158

Test 1903 is doing HTTP pipelining, and that is a timing and ordering
sensitive operation and this fails far too often on the Travis CI
leading to people more or less ignoring test failures there. Not good.

The end of pipelning is probably coming sooner rather than later
anyway...

The man page taken from the release package is found in a different
location than if it's built from source. It must be referenced as $< in
the rule to get its correct location in the VPATH.

This eliminates the need for an external gzip program, which wasn't
working with Busybox's gzip, anyway. It now compresses using perl's
IO::Compress::Gzip

...due to the newly added CURL_SSLVERSION_MAX_* functionality

Verified with OpenSSL 1.1.0e and OpenSSL master (1.1.1)

This commit introduces the CURL_SSLVERSION_MAX_* constants as well as
the --tls-max option of the curl tool.

Closes https://github.com/curl/curl/pull/1166