etlegacy-libs/curl/CHANGES

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                                  Changelog

Version 7.68.0 (8 Jan 2020)

Daniel Stenberg (8 Jan 2020)
- RELEASE-NOTES: 7.68.0

- THANKS: updated with names from the 7.68.0 release

- RELEASE-PROCEDURE: add four future release dates
  
  and remove four past release dates
  
  [skip ci]

Marcel Raad (6 Jan 2020)
- TrackMemory tests: always remove CR before LF
  
  It was removed for output containing ' =' via `s/ =.*//`. With classic
  MinGW, this made lines with `free()` end with CRLF, but lines with e.g.
  `malloc()` end with only LF. The tests expect LF only.
  
  Closes https://github.com/curl/curl/pull/4788

Daniel Stenberg (6 Jan 2020)
- multi.h: move INITIAL_MAX_CONCURRENT_STREAMS from public header
  
  ... to the private multihhandle.h. It is not for public use and it
  wasn't prefixed correctly anyway!
  
  Closes #4790

- file: fix copyright year range
  
  Follow-up to 1b71bc532bd

- curl -w: handle a blank input file correctly
  
  Previously it would end up with an uninitialized memory buffer that
  would lead to a crash or junk getting output.
  
  Added test 1271 to verify.
  
  Reported-by: Brian Carpenter
  Closes #4786

- file: on Windows, refuse paths that start with \\
  
  ... as that might cause an unexpected SMB connection to a given host
  name.
  
  Reported-by: Fernando Muñoz
  CVE-2019-15601
  Bug: https://curl.haxx.se/docs/CVE-2019-15601.html

Jay Satiro (6 Jan 2020)
- CURLOPT_READFUNCTION.3: fix fopen params in example

- CURLOPT_READFUNCTION.3: fix variable name in example
  
  Reported-by: Paul Joyce
  
  Fixes https://github.com/curl/curl/issues/4787

Daniel Stenberg (5 Jan 2020)
- curl:getparameter return error for --http3 if libcurl doesn't support
  
  Closes #4785

- docs: mention CURL_MAX_INPUT_LENGTH restrictions
  
  ... for curl_easy_setopt() and curl_url_set().
  
  [skip ci]
  
  Closes #4783

- curl: properly free mimepost data
  
  ... as it could otherwise leak memory when a transfer failed.
  
  Added test 1293 to verify.
  
  Reported-by: Brian Carpenter
  Fixes #4781
  Closes #4782

- curl: cleanup multi handle on failure
  
  ... to fix memory leak in error path.
  
  Fixes #4772
  Closes #4780
  Reported-by: Brian Carpenter

Marcel Raad (3 Jan 2020)
- lib: fix compiler warnings with `CURL_DISABLE_VERBOSE_STRINGS`
  
  Closes https://github.com/curl/curl/pull/4775

Daniel Stenberg (3 Jan 2020)
- COPYING: it's 2020!
  
  [skip ci]

Jay Satiro (3 Jan 2020)
- [Marc Aldorasi brought this change]

  tests: Fix bounce requests with truncated writes
  
  Prior to this change the swsbounce check in service_connection could
  fail because prevtestno and prevpartno were not set, which would cause
  the wrong response data to be sent to some tests and cause them to fail.
  
  Ref: https://github.com/curl/curl/pull/4717#issuecomment-570240785

Marcel Raad (31 Dec 2019)
- tool: make a few char pointers point to const char instead
  
  These are read-only.
  
  Closes https://github.com/curl/curl/pull/4771

Jay Satiro (31 Dec 2019)
- tests: Change NTLM tests to require SSL
  
  Prior to this change tests that required NTLM feature did not require
  SSL feature.
  
  There are pending changes to cmake builds that will allow enabling NTLM
  in non-SSL builds in Windows. In that case the NTLM auth strings created
  are different from what is expected by the NTLM tests and they fail:
  
  "The issue with NTLM is that previous non-SSL builds would not enable
  NTLM and so the NTLM tests would be skipped."
  
  Assisted-by: marc-groundctl@users.noreply.github.com
  
  Ref: https://github.com/curl/curl/pull/4717#issuecomment-566218729
  
  Closes https://github.com/curl/curl/pull/4768

- [Michael Forney brought this change]

  bearssl: Improve I/O handling
  
  Factor out common I/O loop as bearssl_run_until, which reads/writes TLS
  records until the desired engine state is reached. This is now used for
  the handshake, read, write, and close.
  
  Match OpenSSL SSL_write behavior, and don't return the number of bytes
  written until the corresponding records have been completely flushed
  across the socket. This involves keeping track of the length of data
  buffered into the TLS engine, and assumes that when CURLE_AGAIN is
  returned, the write function will be called again with the same data
  and length arguments. This is the same requirement of SSL_write.
  
  Handle TLS close notify as EOF when reading by returning 0.
  
  Closes https://github.com/curl/curl/pull/4748

- travis: Fix error detection
  
  - Stop using inline shell scripts for before_script and script sections.
  
  Prior to this change Travis could ignore errors from commands in inline
  scripts. I don't understand how or why it happens. This is a workaround.
  
  Assisted-by: Simon Warta
  
  Ref: https://github.com/travis-ci/travis-ci/issues/1066
  
  Fixes https://github.com/curl/curl/issues/3730
  Closes https://github.com/curl/curl/pull/3755

- tool_operate: fix mem leak when failed config parse
  
  Found by fuzzing the config file.
  
  Reported-by: Geeknik Labs
  
  Fixes https://github.com/curl/curl/issues/4767

- [Xiang Xiao brought this change]

  lib: remove erroneous +x file permission on some c files
  
  Modified by commit eb9a604 accidentally.
  
  Closes https://github.com/curl/curl/pull/4756

- [Xiang Xiao brought this change]

  lib: fix warnings found when porting to NuttX
  
  - Undefine DEBUGASSERT in curl_setup_once.h in case it was already
    defined as a system macro.
  
  - Don't compile write32_le in curl_endian unless
    CURL_SIZEOF_CURL_OFF_T > 4, since it's only used by Curl_write64_le.
  
  - Include <arpa/inet.h> in socketpair.c.
  
  Closes https://github.com/curl/curl/pull/4756

- os400: Add missing CURLE error constants
  
  Bug: https://github.com/curl/curl/pull/4754#issuecomment-569126922
  Reported-by: Emil Engler

- CURLOPT_HEADERFUNCTION.3: Document that size is always 1
  
  For compatibility with `fwrite`, the `CURLOPT_HEADERFUNCTION` callback
  is passed two `size_t` parameters which, when multiplied, designate the
  number of bytes of data passed in. In practice, CURL always sets the
  first parameter (`size`) to 1.
  
  This practice is also enshrined in documentation and cannot be changed
  in future. The documentation states that the default callback is
  `fwrite`, which means `fwrite` must be a suitable function for this
  purpose. However, the documentation also states that the callback must
  return the number of *bytes* it successfully handled, whereas ISO C
  `fwrite` returns the number of items (each of size `size`) which it
  wrote. The only way these numbers can be equal is if `size` is 1.
  
  Since `size` is 1 and can never be changed in future anyway, document
  that fact explicitly and let users rely on it.
  
  Reported-by: Frank Gevaerts
  Commit-message-by: Christopher Head
  
  Ref: https://github.com/curl/curl/pull/2787
  
  Fixes https://github.com/curl/curl/issues/4758

- examples/postinmemory.c: Call curl_global_cleanup always
  
  Prior to this change curl_global_cleanup was not called if
  curl_easy_init failed.
  
  Reported-by: kouzhudong@users.noreply.github.com
  
  Fixes https://github.com/curl/curl/issues/4751

Daniel Stenberg (21 Dec 2019)
- url2file.c: fix copyright year
  
  Follow-up to 525787269599b5

- [Rickard Hallerbäck brought this change]

  examples/url2file.c: corrected a comment
  
  The comment was confusing and suggested that setting CURLOPT_NOPROGRESS
  to 0L would both enable and disable debug output at the same time, like
  a Schrödinger's cat of CURLOPTs.
  
  Closes #4745

- HISTORY: OSS-Fuzz started fuzzing libcurl in 2017

- RELEASE-NOTES: synced

Jay Satiro (20 Dec 2019)
- ngtcp2: Support the latest update key callback type
  
  - Remove our cb_update_key in favor of ngtcp2's new
    ngtcp2_crypto_update_key_cb which does the same thing.
  
  Several days ago the ngtcp2_update_key callback function prototype was
  changed in ngtcp2/ngtcp2@42ce09c. Though it would be possible to
  fix up our cb_update_key for that change they also added
  ngtcp2_crypto_update_key_cb which does the same thing so we'll use that
  instead.
  
  Ref: https://github.com/ngtcp2/ngtcp2/commit/42ce09c
  
  Closes https://github.com/curl/curl/pull/4735

Daniel Stenberg (19 Dec 2019)
- sws: search for "Testno:" header uncondtionally if no testno
  
  Even if the initial request line wasn't found. With the fix to 1455, the
  test number is now detected correctly.
  
  (Problem found when running tests in random order.)
  
  Closes #4744

- tests: set LC_ALL in more tests
  
  Follow-up to 23208e330ac0c21
  
  Closes #4743

- test165: set LC_ALL=en_US.UTF-8 too
  
  On my current Debian Unstable with libidn2 2.2.0, I get an error if
  LC_ALL is set to blank. Then curl errors out with:
  
  curl: (3) Failed to convert www.åäö.se to ACE; could not convert string to UTF-8
  
  Closes #4738

- curl.h: add two defines for the "pre ISO C" case
  
  Without this fix, this caused a compilation failure on AIX with IBM xlc
  13.1.3 compiler.
  
  Reported-by: Ram Krushna Mishra
  Fixes #4739
  Closes #4740

- create_conn: prefer multiplexing to using new connections
  
  ... as it would previously prefer new connections rather than
  multiplexing in most conditions! The (now removed) code was a leftover
  from the Pipelining code that was translated wrongly into a
  multiplex-only world.
  
  Reported-by: Kunal Ekawde
  Bug: https://curl.haxx.se/mail/lib-2019-12/0060.html
  Closes #4732

- test1456: remove the use of a fixed local port
  
  Fixup the test to instead not compare the port number. It sometimes
  caused problems like this:
  
  "curl: (45) bind failed with errno 98: Address already in use"
  
  Closes #4733

Jay Satiro (18 Dec 2019)
- CURLOPT_QUOTE.3: fix typos
  
  Prior to this change the EXAMPLE in the QUOTE/PREQUOTE/POSTQUOTE man
  pages would not compile because a variable name was incorrect.
  
  Reported-by: Bylon2@users.noreply.github.com
  
  Fixes https://github.com/curl/curl/issues/4736

- [Gisle Vanem brought this change]

  strerror: Fix compiler warning "empty expression"
  
  - Remove the final semi-colon in the SEC2TXT() macro definition.
  
  Before:  #define SEC2TXT(sec) case sec: txt = #sec; break;
  
  After:   #define SEC2TXT(sec) case sec: txt = #sec; break
  
  Prior to this change SEC2TXT(foo); would generate break;; which caused
  the empty expression warning.
  
  Ref: https://github.com/curl/curl/commit/5b22e1a#r36458547

Daniel Stenberg (18 Dec 2019)
- curl/parseconfig: use curl_free() to free memory allocated by libcurl
  
  Reported-by: bxac on github
  Fixes #4730
  Closes #4731

- curl/parseconfig: fix mem-leak
  
  When looping, first trying '.curlrc' and then '_curlrc', the function
  would not free the first string.
  
  Closes #4731

- CURLOPT_URL.3: "curl supports SMB version 1 (only)"
  
  [skip ci]

- test1270: a basic -w redirect_url test
  
  Closes #4728

- HISTORY: the SMB(S) support landed in 2014

- define: remove HAVE_ENGINE_LOAD_BUILTIN_ENGINES, not used anymore
  
  It is covered by USE_OPENSSL_ENGINE now.
  
  Reported-by: Gisle Vanem
  Bug: https://github.com/curl/curl/commit/87b9337c8f76c21c57b204e88b68c6ecf3bd1ac0#commitcomment-36447951
  
  Closes #4725

- lib: remove ASSIGNWITHINCONDITION exceptions, use our code style
  
  ... even for macros
  
  Reviewed-by: Daniel Gustafsson
  Reviewed-by: Jay Satiro
  Reported-by: Jay Satiro
  Fixes #4683
  Closes #4722

- tests: make sure checksrc runs on header files too

- Revert "checksrc: fix regexp for ASSIGNWITHINCONDITION"
  
  This reverts commit ba82673dac3e8d00a76aa5e3779a0cb80e7442af.
  
  Bug: #4683

- KNOWN_BUGS: TLS session cache doesn't work with TFO
  
  [skip ci]
  Closes #4301

- KNOWN_BUGS: Connection information when using TCP Fast Open
  
  Also point to #4296 for more details
  Closes #4296

- KNOWN_BUGS: LDAP on Windows doesn't work
  
  Closes #4261

- docs: TLS SRP doesn't work with TLS 1.3
  
  Reported-by: sayrer on github
  Closes #4262
  [skip ci]

Dan Fandrich (16 Dec 2019)
- cirrus: Switch to the FreeBSD 12.1 point release & enable more tests.
  
  A few tests are now passing on FreeBSD, so no longer skip them.
  [skip ci]

Daniel Stenberg (16 Dec 2019)
- azure: the macos cmake doesn't need to install cmake
  
   Error: cmake 3.15.5 is already installed
   To upgrade to 3.16.1, run `brew upgrade cmake`.
  
  Closes #4723

Jay Satiro (15 Dec 2019)
- winbuild: Document CURL_STATICLIB requirement for static libcurl
  
  A static libcurl (ie winbuild mode=static) requires that the user define
  CURL_STATICLIB when using it in their application. This is already
  covered in the FAQ and INSTALL.md, but is a pretty important point so
  now it's noted in the BUILD.WINDOWS.txt as well.
  
  Assisted-by: Michael Vittiglio
  
  Closes https://github.com/curl/curl/pull/4721

Daniel Stenberg (15 Dec 2019)
- [Santino Keupp brought this change]

  libssh2: add support for ECDSA and ed25519 knownhost keys
  
  ... if a new enough libssh2 version is present.
  
  Source: https://curl.haxx.se/mail/archive-2019-12/0023.html
  Co-Authored-by: Daniel Stenberg
  Closes #4714

- lib1591: free memory properly on OOM, in the trailers callback
  
  Detected by torture tests.
  
  Closes #4720

- runtests: --repeat=[num] to repeat tests
  
  Closes #4715

- RELEASE-NOTES: synced

- azure: add a torture test on mac
  
  Uses --shallow=25 to keep it small enough to get through in time.
  
  Closes #4712

- multi: free sockhash on OOM
  
  This would otherwise leak memory in the error path.
  
  Detected by torture test 1540.
  
  Closes #4713

Marcel Raad (13 Dec 2019)
- tests: use DoH feature for DoH tests
  
  Previously, http/2 was used instead.
  
  Assisted-by: Jay Satiro
  Closes https://github.com/curl/curl/pull/4692

- hostip: suppress compiler warning
  
  With `--disable-doh --disable-threaded-resolver`, the `dns` parameter
  is not used.
  
  Closes https://github.com/curl/curl/pull/4692

- tests: fix build with `CURL_DISABLE_DOH`
  
  Closes https://github.com/curl/curl/pull/4692

Daniel Stenberg (13 Dec 2019)
- azure: add a torture test
  
  Skipping all FTP tests for speed reasons.
  
  Closes #4697

- azure: make the default build use --enable-debug --enable-werror

- ntlm_wb: fix double-free in OOM
  
  Detected by torture testing test 1310
  
  Closes #4710

Dan Fandrich (13 Dec 2019)
- cirrus: Drop the FreeBSD 10.4 build
  
  Upstream support for 10.4 ended a year ago, and it looks like the image
  is now gone, too.
  [skip ci]

Daniel Stenberg (13 Dec 2019)
- unit1620: fix bad free in OOM
  
  Closes #4709

- unit1609: fix mem-leak in OOM
  
  Closes #4709

- unit1607: fix mem-leak in OOM
  
  Closes #4709

- lib1559: fix mem-leak in OOM
  
  Closes #4709

- lib1557: fix mem-leak in OOM
  
  Closes #4709

- altsvc: make the save function ignore NULL filenames
  
  It might happen in OOM situations. Detected bv torture tests.
  
  Closes #4707

- curl: fix memory leak in OOM in etags logic
  
  Detected by torture tests
  
  Closes #4706

- doh: make it behave when built without proxy support
  
  Reported-by: Marcel Raad
  Bug: https://github.com/curl/curl/pull/4692#issuecomment-564115734
  
  Closes #4704

- curl: improved cleanup in upload error path
  
  Memory leak found by torture test 58
  
  Closes #4705

- mailmap: fix Andrew Ishchuk

- travis: make torture use --shallow=40
  
  As a first step to enable it to run over a more diverse set of tests in
  a reasonable time.

- runtests: introduce --shallow to reduce huge torture tests
  
  When set, shallow mode limits runtests -t to make no more than NUM fails
  per test case. If more are found, it will randomly discard entries until
  the number is right. The random seed can also be set.
  
  This is particularly useful when running MANY tests as then most torture
  failures will already fail the same functions over and over and make the
  total operation painfully tedious.
  
  Closes #4699

- conncache: CONNECT_ONLY connections assumed always in-use
  
  This makes them never to be considered "the oldest" to be discarded when
  reaching the connection cache limit. The reasoning here is that
  CONNECT_ONLY is primarily used in combination with using the
  connection's socket post connect and since that is used outside of
  curl's knowledge we must assume that it is in use until explicitly
  closed.
  
  Reported-by: Pavel Pavlov
  Reported-by: Pavel Löbl
  Fixes #4426
  Fixes #4369
  Closes #4696

- [Gisle Vanem brought this change]

  vtls: make BearSSL possible to set with CURL_SSL_BACKEND
  
  Ref: https://github.com/curl/curl/commit/9b879160df01e7ddbb4770904391d3b74114302b#commitcomment-36355622
  
  Closes #4698

- RELEASE-NOTES: synced

- travis: remove "coverage", make it "torture"
  
  The coveralls service and test coverage numbers are just too unreliable.
  Removed badge from README.md as well.
  
  Fixes #4694
  Closes #4695

- azure: add libssh2 and cmake macos builds
  
  Removed the macos libssh2 build from travis
  
  Closes #4686

- curl: use errorf() better
  
  Change series of error outputs to use errorf().
  
  Only errors that are due to mistakes in command line option usage should
  use helpf(), other types of errors in the tool should rather use
  errorf().
  
  Closes #4691

Jay Satiro (9 Dec 2019)
- [Marc Hoersken brought this change]

  tests: make it possible to set executable extensions
  
  This enables the use of Windows Subsystem for Linux (WSL) to run the
  testsuite against Windows binaries while using Linux servers.
  
  This commit introduces the following environment variables:
  - CURL_TEST_EXE_EXT: set the executable extension for all components
  - CURL_TEST_EXE_EXT_TOOL: set it for the curl tool only
  - CURL_TEST_EXE_EXT_SSH: set it for the SSH tools only
  
  Later testcurl.pl could be adjusted to make use of those variables.
  - CURL_TEST_EXE_EXT_SRV: set it for the test servers only
  
  (This is one of several commits to support use of WSL for the tests.)
  
  Closes https://github.com/curl/curl/pull/3899

- [Marc Hoersken brought this change]

  tests: fix permissions of ssh keys in WSL
  
  Keys created on Windows Subsystem for Linux (WSL) require it for some
  reason.
  
  (This is one of several commits to support use of WSL for the tests.)
  
  Ref: https://github.com/curl/curl/pull/3899

- [Marc Hoersken brought this change]

  tests: use \r\n for log messages in WSL
  
  Bash in Windows Subsystem for Linux (WSL) requires it for some reason.
  
  (This is one of several commits to support use of WSL for the tests.)
  
  Ref: https://github.com/curl/curl/pull/3899

- [Andrew Ishchuk brought this change]

  winbuild: Define CARES_STATICLIB when WITH_CARES=static
  
  When libcurl is built with MODE=static, c-ares is forced into static
  linkage too. That doesn't happen when MODE=dll so linker would break
  over undefined symbols.
  
  closes https://github.com/curl/curl/pull/4688

Daniel Stenberg (9 Dec 2019)
- conn: always set bits.close with connclose()
  
  Closes #4690

- cirrus: enable clang sanitizers on freebsd 13

- conncache: fix multi-thread use of shared connection cache
  
  It could accidentally let the connection get used by more than one
  thread, leading to double-free and more.
  
  Reported-by: Christopher Reid
  Fixes #4544
  Closes #4557

- azure: add a vanilla macos build
  
  Closes #4685

- curl: make the etag load logic work without fseek
  
  The fseek()s were unnecessary and caused Coverity warning CID 1456554
  
  Closes #4681

- mailmap: Mohammad Hasbini

- [Mohammad Hasbini brought this change]

  docs: fix some typos
  
  Closes #4680

- RELEASE-NOTES: synced

Jay Satiro (5 Dec 2019)
- lib: fix some loose ends for recently added CURLSSLOPT_NO_PARTIALCHAIN
  
  Add support for CURLSSLOPT_NO_PARTIALCHAIN in CURLOPT_PROXY_SSL_OPTIONS
  and OS400 package spec.
  
  Also I added the option to the NameValue list in the tool even though it
  isn't exposed as a command-line option (...yet?). (NameValue stringizes
  the option name for the curl cmd -> libcurl source generator)
  
  Follow-up to 564d88a which added CURLSSLOPT_NO_PARTIALCHAIN.
  
  Ref: https://github.com/curl/curl/pull/4655

- setopt: Fix ALPN / NPN user option when built without HTTP2
  
  - Stop treating lack of HTTP2 as an unknown option error result for
    CURLOPT_SSL_ENABLE_ALPN and CURLOPT_SSL_ENABLE_NPN.
  
  Prior to this change it was impossible to disable ALPN / NPN if libcurl
  was built without HTTP2. Setting either option would result in
  CURLE_UNKNOWN_OPTION and the respective internal option would not be
  set. That was incorrect since ALPN and NPN are used independent of
  HTTP2.
  
  Reported-by: Shailesh Kapse
  
  Fixes https://github.com/curl/curl/issues/4668
  Closes https://github.com/curl/curl/pull/4672

Daniel Stenberg (5 Dec 2019)
- etag: allow both --etag-compare and --etag-save in same cmdline
  
  Fixes #4669
  Closes #4678

Marcel Raad (5 Dec 2019)
- curl_setup: fix `CURLRES_IPV6` condition
  
  Move the definition of `CURLRES_IPV6` to before undefining
  `HAVE_GETADDRINFO`. Regression from commit 67a08dca27a which caused
  some tests to fail and others to be skipped with c-ares.
  
  Fixes https://github.com/curl/curl/issues/4673
  Closes https://github.com/curl/curl/pull/4677

Daniel Stenberg (5 Dec 2019)
- test342: make it return a 304 as the tag matches

Peter Wu (4 Dec 2019)
- CMake: add support for building with the NSS vtls backend
  
  Options are cross-checked with configure.ac and acinclude.m4.
  Tested on Arch Linux, untested on other platforms like Windows or macOS.
  
  Closes #4663
  Reviewed-by: Kamil Dudka

Daniel Stenberg (4 Dec 2019)
- azure: add more builds
  
  ... removed two from travis (that now runs on azure instead)
  
  Closes #4671

- CURLOPT_VERBOSE.3: see also ERRORBUFFER

- hostip4.c: bump copyright year range

Marcel Raad (3 Dec 2019)
- configure: enable IPv6 support without `getaddrinfo`
  
  This makes it possible to recognize and connect to literal IPv6
  addresses when `getaddrinfo` is not available, which is already the
  case for the CMake build. This affects e.g. classic MinGW because it
  still targets Windows 2000 by default, where `getaddrinfo` is not
  available, but general IPv6 support is.
  
  Instead of checking for `getaddrinfo`, check for `sockaddr_in6` as the
  CMake build does.
  
  Closes https://github.com/curl/curl/pull/4662

- curl_setup: disable IPv6 resolver without `getaddrinfo`
  
  Also, use `CURLRES_IPV6` only for actual DNS resolution, not for IPv6
  address support. This makes it possible to connect to IPv6 literals by
  setting `ENABLE_IPV6` even without `getaddrinfo` support. It also fixes
  the CMake build when using the synchronous resolver without
  `getaddrinfo` support.
  
  Closes https://github.com/curl/curl/pull/4662

Daniel Stenberg (3 Dec 2019)
- github action/azure pipeline: run 'make test-nonflaky' for tests
  
  To match travis and give more info on failures.

- openssl: CURLSSLOPT_NO_PARTIALCHAIN can disable partial cert chains
  
  Closes #4655

- openssl: set X509_V_FLAG_PARTIAL_CHAIN
  
  Have intermediate certificates in the trust store be treated as
  trust-anchors, in the same way as self-signed root CA certificates
  are. This allows users to verify servers using the intermediate cert
  only, instead of needing the whole chain.
  
  Other TLS backends already accept partial chains.
  
  Reported-by: Jeffrey Walton
  Bug: https://curl.haxx.se/mail/lib-2019-11/0094.html

- curl: show better error message when no homedir is found
  
  Reported-by: Vlastimil Ovčáčík
  Fixes #4644
  Closes #4665

- OPENSOCKETFUNCTION.3: correct the purpose description
  
  Reported-by: Jeff Mears
  Bug: https://curl.haxx.se/mail/lib-2019-12/0007.html
  
  Closes #4667

- [Peter Wu brought this change]

  travis: do not use OVERRIDE_CC or OVERRIDE_CXX if empty
  
  Fixes the macOS builds where OVERRIDE_CC and OVERRIDE_CXX are not set.
  
  Reported-by: Jay Satiro
  Fixes #4659
  Closes #4661
  Closes #4664

- azure-pipelines: fix the test script

- Azure Pipelines: initial CI setup
  
  [skip ci]

- docs: add "added: 7.68.0" to the --etag-* docs

- copyright: fix the year ranges for two files
  
  Follow-up to 9c1806ae

Jay Satiro (1 Dec 2019)
- build: Disable Visual Studio warning "conditional expression is constant"
  
  - Disable warning C4127 "conditional expression is constant" globally
    in curl_setup.h for when building with Microsoft's compiler.
  
  This mainly affects building with the Visual Studio project files found
  in the projects dir.
  
  Prior to this change the cmake and winbuild build systems already
  disabled 4127 globally for when building with Microsoft's compiler.
  Also, 4127 was already disabled for all build systems in the limited
  circumstance of the WHILE_FALSE macro which disabled the warning
  specifically for while(0). This commit removes the WHILE_FALSE macro and
  all other cruft in favor of disabling globally in curl_setup.
  
  Background:
  
  We have various macros that cause 0 or 1 to be evaluated, which would
  cause warning C4127 in Visual Studio. For example this causes it:
  
      #define Curl_resolver_asynch() 1
  
  Full behavior is not clearly defined and inconsistent across versions.
  However it is documented that since VS 2015 Update 3 Microsoft has
  addressed this somewhat but not entirely, not warning on while(true) for
  example.
  
  Prior to this change some C4127 warnings occurred when I built with
  Visual Studio using the generated projects in the projects dir.
  
  Closes https://github.com/curl/curl/pull/4658

- openssl: retrieve reported LibreSSL version at runtime
  
  - Retrieve LibreSSL runtime version when supported (>= 2.7.1).
  
  For earlier versions we continue to use the compile-time version.
  
  Ref: https://man.openbsd.org/OPENSSL_VERSION_NUMBER.3
  
  Closes https://github.com/curl/curl/pull/2425

- strerror: Add Curl_winapi_strerror for Win API specific errors
  
  - In all code call Curl_winapi_strerror instead of Curl_strerror when
    the error code is known to be from Windows GetLastError.
  
  Curl_strerror prefers CRT error codes (errno) over Windows API error
  codes (GetLastError) when the two overlap. When we know the error code
  is from GetLastError it is more accurate to prefer the Windows API error
  messages.
  
  Reported-by: Richard Alcock
  
  Fixes https://github.com/curl/curl/issues/4550
  Closes https://github.com/curl/curl/pull/4581

Daniel Stenberg (2 Dec 2019)
- global_init: undo the "intialized" bump in case of failure
  
  ... so that failures in the global init function don't count as a
  working init and it can then be called again.
  
  Reported-by: Paul Groke
  Fixes #4636
  Closes #4653

- parsedate: offer a getdate_capped() alternative
  
  ... and use internally. This function will return TIME_T_MAX instead of
  failure if the parsed data is found to be larger than what can be
  represented. TIME_T_MAX being the largest value curl can represent.
  
  Reviewed-by: Daniel Gustafsson
  Reported-by: JanB on github
  Fixes #4152
  Closes #4651

- docs: add more references to curl_multi_poll
  
  Fixes #4643
  Closes #4652

- sha256: bump the copyright year range
  
  Follow-up from 66e21520f

Daniel Gustafsson (28 Nov 2019)
- curl_setup_once: consistently use WHILE_FALSE in macros
  
  The WHILE_FALSE construction is used to avoid compiler warnings in
  macro constructions. This fixes a few instances where it was not
  used in order to keep the code consistent.
  
  Closes #4649
  Reviewed-by: Daniel Stenberg <daniel@haxx.se>

Daniel Stenberg (28 Nov 2019)
- [Steve Holme brought this change]

  http_ntlm: Remove duplicate NSS initialisation
  
  Given that this is performed by the NTLM code there is no need to
  perform the initialisation in the HTTP layer. This also keeps the
  initialisation the same as the SASL based protocols and also fixes a
  possible compilation issue if both NSS and SSPI were to be used as
  multiple SSL backends.
  
  Reviewed-by: Kamil Dudka
  Closes #3935

Daniel Gustafsson (28 Nov 2019)
- checksrc: fix regexp for ASSIGNWITHINCONDITION
  
  The regexp looking for assignments within conditions was too greedy
  and matched a too long string in the case of multiple conditionals
  on the same line. This is basically only a problem in single line
  macros, and the code which exemplified this was essentially:
  
    do { if((x) != NULL) { x = NULL; } } while(0)
  
  ..where the final parenthesis of while(0) matched the regexp, and
  the legal assignment in the block triggered the warning. Fix by
  making the regexp less greedy by matching for the tell-tale signs
  of the if statement ending.
  
  Also remove the one occurrence where the warning was disabled due
  to a construction like the above, where the warning didn't apply
  when fixed.
  
  Closes #4647
  Reviewed-by: Daniel Stenberg <daniel@haxx.se>

Daniel Stenberg (28 Nov 2019)
- RELEASE-NOTES: synced

- [Maros Priputen brought this change]

  curl: two new command line options for etags
  
  --etag-compare and --etag-save
  
  Suggested-by: Paul Hoffman
  Fixes #4277
  Closes #4543

Daniel Gustafsson (28 Nov 2019)
- docs: fix typos

Daniel Stenberg (28 Nov 2019)
- mailmap: Niall O'Reilly's name

- [Niall O'Reilly brought this change]

  doh: use dedicated probe slots
  
  ... to easier allow additional DNS transactions.
  
  Closes #4629

- travis: build ngtcp2 with --enable-lib-only
  
  ... makes it skip the examples and other stuff we don't neeed.
  
  Closes #4646

- [David Benjamin brought this change]

  ngtcp2: fix thread-safety bug in error-handling
  
  ERR_error_string(NULL) should never be called. It places the error in a
  global buffer, which is not thread-safe. Use ERR_error_string_n with a
  local buffer instead.
  
  Closes #4645

- travis: export the CC/CXX variables when set
  
  Suggested-by: Peter Wu
  Fixes #4637
  Closes #4640

Marcel Raad (26 Nov 2019)
- dist: add error-codes.pl
  
  Follow-up to commit 74f441c6d31.
  This should fix test 1175 when run via the daily source tarballs.
  
  Closes https://github.com/curl/curl/pull/4638

Daniel Stenberg (26 Nov 2019)
- [John Schroeder brought this change]

  curl: fix --upload-file . hangs if delay in STDIN
  
  Attempt to unpause a busy read in the CURLOPT_XFERINFOFUNCTION.
  
  When uploading from stdin in non-blocking mode, a delay in reading
  the stream (EAGAIN) causes curl to pause sending data
  (CURL_READFUNC_PAUSE).  Prior to this change, a busy read was
  detected and unpaused only in the CURLOPT_WRITEFUNCTION handler.
  This change performs the same busy read handling in a
  CURLOPT_XFERINFOFUNCTION handler.
  
  Fixes #2051
  Closes #4599
  Reported-by: bdry on github

- [John Schroeder brought this change]

  XFERINFOFUNCTION: support CURL_PROGRESSFUNC_CONTINUE
  
  (also for PROGRESSFUNCTION)
  
  By returning this value from the callback, the internal progress
  function call is still called afterward.
  
  Closes #4599

- [Michael Forney brought this change]

  TLS: add BearSSL vtls implementation
  
  Closes #4597

- curl_multi_wakeup.3: add example and AVAILABILITY
  
  Reviewed-by: Gergely Nagy
  Closes #4635

- [Gergely Nagy brought this change]

  multi: add curl_multi_wakeup()
  
  This commit adds curl_multi_wakeup() which was previously in the TODO
  list under the curl_multi_unblock name.
  
  On some platforms and with some configurations this feature might not be
  available or can fail, in these cases a new error code
  (CURLM_WAKEUP_FAILURE) is returned from curl_multi_wakeup().
  
  Fixes #4418
  Closes #4608

Jay Satiro (24 Nov 2019)
- [Xiaoyin Liu brought this change]

  schannel: fix --tls-max for when min is --tlsv1 or default
  
  Prior to this change schannel ignored --tls-max (CURL_SSLVERSION_MAX_
  macros) when --tlsv1 (CURL_SSLVERSION_TLSv1) or default TLS
  (CURL_SSLVERSION_DEFAULT), using a max of TLS 1.2 always.
  
  Closes https://github.com/curl/curl/pull/4633

- checksrc.bat: Add a check for vquic and vssh directories
  
  Ref: https://github.com/curl/curl/pull/4607

- projects: Fix Visual Studio projects SSH builds
  
  - Generate VQUIC and VSSH filenames in Visual Studio project files.
  
  Prior to this change generated Visual Studio project configurations that
  enabled SSH did not build properly. Broken since SSH files were moved to
  lib/vssh 3 months ago in 5b2d703.
  
  Fixes https://github.com/curl/curl/issues/4492
  Fixes https://github.com/curl/curl/issues/4630
  Closes https://github.com/curl/curl/pull/4607

Daniel Stenberg (23 Nov 2019)
- RELEASE-NOTES: synced

Jay Satiro (22 Nov 2019)
- openssl: Revert to less sensitivity for SYSCALL errors
  
  - Disable the extra sensitivity except in debug builds (--enable-debug).
  
  - Improve SYSCALL error message logic in ossl_send and ossl_recv so that
    "No error" / "Success" socket error text isn't shown on SYSCALL error.
  
  Prior to this change 0ab38f5 (precedes 7.67.0) increased the sensitivity
  of OpenSSL's SSL_ERROR_SYSCALL error so that abrupt server closures were
  also considered errors. For example, a server that does not send a known
  protocol termination point (eg HTTP content length or chunked encoding)
  _and_ does not send a TLS termination point (close_notify alert) would
  cause an error if it closed the connection.
  
  To be clear that behavior made it into release build 7.67.0
  unintentionally. Several users have reported it as an issue.
  
  Ultimately the idea is a good one, since it can help prevent against a
  truncation attack. Other SSL backends may already behave similarly (such
  as Windows native OS SSL Schannel). However much more of our user base
  is using OpenSSL and there is a mass of legacy users in that space, so I
  think that behavior should be partially reverted and then rolled out
  slowly.
  
  This commit changes the behavior so that the increased sensitivity is
  disabled in all curl builds except curl debug builds (DEBUGBUILD). If
  after a period of time there are no major issues then it can be enabled
  in dev and release builds with the newest OpenSSL (1.1.1+), since users
  using the newest OpenSSL are the least likely to have legacy problems.
  
  Bug: https://github.com/curl/curl/issues/4409#issuecomment-555955794
  Reported-by: Bjoern Franke
  
  Fixes https://github.com/curl/curl/issues/4624
  Closes https://github.com/curl/curl/pull/4623

- [Daniel Stenberg brought this change]

  openssl: improve error message for SYSCALL during connect
  
  Reported-by: Paulo Roberto Tomasi
  Bug: https://curl.haxx.se/mail/archive-2019-11/0005.html
  
  Closes https://github.com/curl/curl/pull/4593

Daniel Stenberg (22 Nov 2019)
- test1175: verify symbols-in-versions and libcurl-errors.3 in sync
  
  Closes #4628

- include: make CURLE_HTTP3 use a new error code
  
  To avoid potential issues with error code reuse.
  
  Reported-by: Christoph M. Becker
  Assisted-by: Dan Fandrich
  Fixes #4601
  Closes #4627

- bump: next release will be 7.68.0

- curl: add --parallel-immediate
  
  Starting with this change when doing parallel transfers, without this
  option set, curl will prefer to create new transfers multiplexed on an
  existing connection rather than creating a brand new one.
  
  --parallel-immediate can be set to tell curl to prefer to use new
  connections rather than to wait and try to multiplex.
  
  libcurl-wise, this means that curl will set CURLOPT_PIPEWAIT by default
  on parallel transfers.
  
  Suggested-by: Tom van der Woerdt
  Closes #4500

Daniel Gustafsson (20 Nov 2019)
- [Victor Magierski brought this change]

  docs: fix typos
  
  Change 'experiemental' to 'experimental'.
  
  Closes #4618
  Reviewed-by: Daniel Gustafsson <daniel@yesql.se>

Jay Satiro (18 Nov 2019)
- projects: Fix Visual Studio wolfSSL configurations
  
  - s/USE_CYASSL/USE_WOLFSSL/
  
  - Remove old compatibility macros.
  
  Follow-up to 1c6c59a from several months ago when CyaSSL named symbols
  were renamed to wolfSSL. The wolfSSL library was formerly named CyaSSL
  and we kept using their old name for compatibility reasons, until
  earlier this year.

Daniel Stenberg (18 Nov 2019)
- RELEASE-NOTES: synced

- [Javier Blazquez brought this change]

  ngtcp2: use overflow buffer for extra HTTP/3 data
  
  Fixes #4525
  Closes #4603

- altsvc: bump to h3-24
  
  ... as both ngtcp2 and quiche now support that in their master branches
  
  Closes #4604

- ngtcp2: free used resources on disconnect
  
  Fixes #4614
  Closes #4615

- ngtcp2: handle key updates as ngtcp2 master branch tells us
  
  Reviewed-by: Tatsuhiro Tsujikawa
  
  Fixes #4612
  Closes #4613

Jay Satiro (17 Nov 2019)
- [Gergely Nagy brought this change]

  multi: Fix curl_multi_poll wait when extra_fds && !extra_nfds
  
  Prior to this change:
  
  The check if an extra wait is necessary was based not on the
  number of extra fds but on the pointer.
  
  If a non-null pointer was given in extra_fds, but extra_nfds
  was zero, then the wait was skipped even though poll was not
  called.
  
  Closes https://github.com/curl/curl/pull/4610

- lib: Move lib/ssh.h -> lib/vssh/ssh.h
  
  Follow-up to 5b2d703 which moved ssh source files to vssh.
  
  Closes https://github.com/curl/curl/pull/4609

Daniel Stenberg (16 Nov 2019)
- [Andreas Falkenhahn brought this change]

  INSTALL.md: provide Android build instructions
  
  Closes #4606

- [Niall O'Reilly brought this change]

  doh: improced both encoding and decoding
  
  Improved estimation of expected_len and updated related comments;
  increased strictness of QNAME-encoding, adding error detection for empty
  labels and names longer than the overall limit; avoided treating DNAME
  as unexpected;
  
  updated unit test 1655 with more thorough set of proofs and tests
  
  Closes #4598

- ngtcp2: increase QUIC window size when data is consumed
  
  Assisted-by: Javier Blazquez
  Ref #4525 (partial fix)
  Closes #4600

- [Melissa Mears brought this change]

  config-win32: cpu-machine-OS for Windows on ARM
  
  Define the OS macro properly for Windows on ARM builds.  Also, we might
  as well add the GCC-style IA-64 macro.
  
  Closes #4590

- examples: add multi-poll.c
  
  Show how curl_multi_poll() makes it even easier to use the multi
  interface.
  
  Closes #4596

- multi_poll: avoid busy-loop when called without easy handles attached
  
  Fixes #4594
  Closes #4595
  Reported-by: 3dyd on github

- curl: fix -T globbing
  
  Regression from e59371a4936f8 (7.67.0)
  
  Added test 490, 491 and 492 to verify the functionality.
  
  Reported-by: Kamil Dudka
  Reported-by: Anderson Sasaki
  
  Fixes #4588
  Closes #4591

- HISTORY: added cmake, HTTP/3 and parallel downloads with curl

- quiche: reject headers in the wrong order
  
  Pseudo header MUST come before regular headers or cause an error.
  
  Reported-by: Cynthia Coan
  Fixes #4571
  Closes #4584

- openssl: prevent recursive function calls from ctx callbacks
  
  Follow the pattern of many other callbacks.
  
  Ref: #4546
  Closes #4585

- CURL-DISABLE: initial docs for the CURL_DISABLE_* defines
  
  The disable-scan script used in test 1165 is extended to also verify
  that the docs cover all used defines and all defines offered by
  configure.
  
  Reported-by: SLDiggie on github
  Fixes #4545
  Closes #4587

- remove_handle: clear expire timers after multi_done()
  
  Since 59041f0, a new timer might be set in multi_done() so the clearing
  of the timers need to happen afterwards!
  
  Reported-by: Max Kellermann
  Fixes #4575
  Closes #4583

Marcel Raad (10 Nov 2019)
- test1558: use double slash after file:
  
  Classic MinGW / MSYS 1 doesn't support `MSYS2_ARG_CONV_EXCL`, so this
  test unnecessarily failed when using `file:/` instead of `file:///`.
  
  Closes https://github.com/curl/curl/pull/4554

Daniel Stenberg (10 Nov 2019)
- pause: avoid updating socket if done was already called
  
  ... avoids unnecesary recursive risk when the transfer is already done.
  
  Reported-by: Richard Bowker
  Fixes #4563
  Closes #4574

Jay Satiro (9 Nov 2019)
- strerror: Fix an error looking up some Windows error strings
  
  - Use FORMAT_MESSAGE_IGNORE_INSERTS to ignore format specifiers in
    Windows error strings.
  
  Since we are not in control of the error code we don't know what
  information may be needed by the error string's format specifiers.
  
  Prior to this change Windows API error strings which contain specifiers
  (think specifiers like similar to printf specifiers) would not be shown.
  The FormatMessage Windows API call which turns a Windows error code into
  a string could fail and set error ERROR_INVALID_PARAMETER if that error
  string contained a format specifier. FormatMessage expects a va_list for
  the specifiers, unless inserts are ignored in which case no substitution
  is attempted.
  
  Ref: https://devblogs.microsoft.com/oldnewthing/20071128-00/?p=24353

- [r-a-sattarov brought this change]

  system.h: fix for MCST lcc compiler
  
  Fixed build by MCST lcc compiler on MCST Elbrus 2000 architecture and do
  some code cleanup.
  
  e2k (Elbrus 2000) - this is VLIW/EPIC architecture, like Intel Itanium
  architecture.
  
  Ref: https://en.wikipedia.org/wiki/Elbrus_2000
  
  Closes https://github.com/curl/curl/pull/4576

Daniel Stenberg (8 Nov 2019)
- TODO: curl_multi_unblock
  
  Closes #4418

- TODO: Run web-platform-tests url tests
  
  Closes #4477

- TODO: 1.4 alt-svc sharing
  
  Closes #4476

- test1560: require IPv6 for IPv6 aware URL parsing
  
  The URL parser function can't reject a bad IPv6 address properly when
  curl was built without IPv6 support.
  
  Reported-by: Marcel Raad
  Fixes #4556
  Closes #4572

- checksrc: repair the copyrightyear check
  
  - Consider a modified file to be committed this year.
  
  - Make the travis CHECKSRC also do COPYRIGHTYEAR scan in examples and
    includes
  
  - Ignore 0 parents when getting latest commit date of file.
  
  since in the CI we're dealing with a truncated repo of last 50 commits,
  the file's most recent commit may not be available. when this happens
  git log and rev-list show the initial commit (ie first commit not to be
  truncated) but that's incorrect so ignore it.
  
  Ref: https://github.com/curl/curl/pull/4547
  
  Closes https://github.com/curl/curl/pull/4549
  
  Co-authored-by: Jay Satiro

- copyrights: fix copyright year range
  
  .. because checksrc's copyright year check stopped working.
  
  Ref: https://github.com/curl/curl/pull/4547
  
  Closes https://github.com/curl/curl/pull/4549

- RELEASE-NOTES: synced

- curlver: bump to 7.67.1

- mailmap: fixup Massimiliano Fantuzzi

- scripts/contributors: make committers get included too
  
  in addition to authors

Jay Satiro (8 Nov 2019)
- [Massimiliano Fantuzzi brought this change]

  configure: fix typo in help text
  
  Closes https://github.com/curl/curl/pull/4570

Daniel Stenberg (7 Nov 2019)
- [Christian Schmitz brought this change]

  ntlm: USE_WIN32_CRYPTO check removed to get USE_NTLM2SESSION set
  
  Closes #3704

Jay Satiro (6 Nov 2019)
- [Wyatt O'Day brought this change]

  build: fix for CURL_DISABLE_DOH
  
  Fixes https://github.com/curl/curl/issues/4565
  Closes https://github.com/curl/curl/pull/4566

- [Leonardo Taccari brought this change]

  configure: avoid unportable `==' test(1) operator
  
  Closes https://github.com/curl/curl/pull/4567

Version 7.67.0 (5 Nov 2019)

Daniel Stenberg (5 Nov 2019)
- RELEASE-NOTES: synced
  
  The 7.67.0 release

- THANKS: add new names from 7.67.0

- configure: only say ipv6 enabled when the variable is set
  
  Previously it could say "IPv6: enabled" at the end of the configure run
  but the define wasn't set because of a missing getaddrinfo().
  
  Reported-by: Marcel Raad
  Fixes #4555
  Closes #4560

Marcel Raad (2 Nov 2019)
- certs/Server-localhost-lastSAN-sv: regenerate with sha256
  
  All other certificates were regenerated in commit ba782baac30, but
  this one was missed.
  Fixes test3001 on modern systems.
  
  Closes https://github.com/curl/curl/pull/4551

Daniel Stenberg (2 Nov 2019)
- [Vilhelm Prytz brought this change]

  copyrights: update all copyright notices to 2019 on files changed this year
  
  Closes #4547

- [Bastien Bouclet brought this change]

  mbedtls: add error message for cert validity starting in the future
  
  Closes #4552

Jay Satiro (1 Nov 2019)
- schannel_verify: Fix concurrent openings of CA file
  
  - Open the CA file using FILE_SHARE_READ mode so that others can read
    from it as well.
  
  Prior to this change our schannel code opened the CA file without
  sharing which meant concurrent openings (eg an attempt from another
  thread or process) would fail during the time it was open without
  sharing, which in curl's case would cause error:
  "schannel: failed to open CA file".
  
  Bug: https://curl.haxx.se/mail/lib-2019-10/0104.html
  Reported-by: Richard Alcock

Daniel Stenberg (31 Oct 2019)
- gtls: make gnutls_bye() not wait for response on shutdown
  
  ... as it can make it wait there for a long time for no good purpose.
  
  Patched-by: Jay Satiro
  Reported-by: Bylon2 on github
  Adviced-by: Nikos Mavrogiannopoulos
  
  Fixes #4487
  Closes #4541

- [Michał Janiszewski brought this change]

  appveyor: publish artifacts on appveyor
  
  This allows obtaining upstream builds of curl directly from appveyor for
  all the available configurations
  
  Closes #4509

- url: make Curl_close() NULLify the pointer too
  
  This is the common pattern used in the code and by a unified approach we
  avoid mistakes.
  
  Closes #4534

- [Trivikram Kamat brought this change]

  INSTALL: add missing space for configure commands
  
  Closes #4539

- url: Curl_free_request_state() should also free doh handles
  
  ... or risk DoH memory leaks.
  
  Reported-by: Paul Dreik
  Fixes #4463
  Closes #4527

- examples: remove the "this exact code has not been verified"
  
  ... as really confuses the reader to not know what to believe!

- [Trivikram Kamat brought this change]

  HTTP3: fix typo somehere1 > somewhere1
  
  Closes #4535

Jay Satiro (28 Oct 2019)
- [Javier Blazquez brought this change]

  HTTP3: fix invalid use of sendto for connected UDP socket
  
  On macOS/BSD, trying to call sendto on a connected UDP socket fails
  with a EISCONN error. Because the singleipconnect has already called
  connect on the socket when we're trying to use it for QUIC transfers
  we need to use plain send instead.
  
  Fixes #4529
  Closes https://github.com/curl/curl/pull/4533

Daniel Stenberg (28 Oct 2019)
- RELEASE-NOTES: synced

- [Javier Blazquez brought this change]

  HTTP3: fix Windows build
  
  The ngtcp2 QUIC backend was using the MSG_DONTWAIT flag for send/recv
  in order to perform nonblocking operations. On Windows this flag does
  not exist. Instead, the socket must be set to nonblocking mode via
  ioctlsocket.
  
  This change sets the nonblocking flag on UDP sockets used for QUIC on
  all platforms so the use of MSG_DONTWAIT is not needed.
  
  Fixes #4531
  Closes #4532

Marcel Raad (27 Oct 2019)
- appveyor: add --disable-proxy autotools build
  
  This would have caught issue #3926.
  
  Also make formatting more consistent.
  
  Closes https://github.com/curl/curl/pull/4526

Daniel Stenberg (25 Oct 2019)
- appveyor: make winbuilds with DEBUG=no/yes and VS 2015/2017
  
  ... and invoke "curl -V" once done
  
  Co-Authored-By: Jay Satiro
  
  Closes #4523

- [Francois Rivard brought this change]

  schannel: reverse the order of certinfo insertions
  
  Fixes #4518
  Closes #4519

Marcel Raad (24 Oct 2019)
- test1591: fix spelling of http feature
  
  The test never got run because the feature name is `http` in lowercase.
  
  Closes https://github.com/curl/curl/pull/4520

Daniel Stenberg (23 Oct 2019)
- [Michał Janiszewski brought this change]

  appveyor: Use two parallel compilation on appveyor with CMake
  
  Appveyor provides 2 CPUs for each builder[1], make sure to use parallel
  compilation, when running with CMake. CMake learned this new option in
  version 3.12[2] and the version provided by appveyor is fresh enough.
  
  Curl doesn't really take that long to build and it is using the slowest
  builder available, msbuild, so expect only a moderate improvement in
  build times.
  
  [1] https://www.appveyor.com/docs/build-environment/
  [2] https://cmake.org/cmake/help/v3.12/release/3.12.html
  
  Closes #4508

- conn-reuse: requests wanting NTLM can reuse non-NTLM connections
  
  Added test case 338 to verify.
  
  Reported-by: Daniel Silverstone
  Fixes #4499
  Closes #4514

Marcel Raad (23 Oct 2019)
- tests: add missing proxy features

Daniel Stenberg (22 Oct 2019)
- RELEASE-NOTES: synced

Marcel Raad (21 Oct 2019)
- tests: use %FILE_PWD for file:// URLs
  
  This way, we always have exactly one slash after the host name, making
  the tests pass when curl is compiled with the MSYS GCC.
  
  Closes https://github.com/curl/curl/pull/4512

- tests: add `connect to non-listen` keywords
  
  These tests try to connect to ports nothing is listening on.
  
  Closes https://github.com/curl/curl/pull/4511

- runtests: get textaware info from curl instead of perl
  
  The MSYS system on Windows can run the test suite for curl built with
  any toolset. When built with the MSYS GCC, curl uses Unix line endings,
  while it uses Windows line endings when built with the MinGW GCC, and
  `^O` reports 'msys' in both cases. Use the curl executable itself to
  determine the line endings instead, which reports 'x86_64-pc-msys' when
  built with the MSYS GCC.
  
  Closes https://github.com/curl/curl/pull/4506

Daniel Stenberg (20 Oct 2019)
- [Michał Janiszewski brought this change]

  appveyor: Add MSVC ARM64 build
  
  Closes #4507

- http2_recv: a closed stream trumps pause state
  
  ... and thus should return 0, not EAGAIN.
  
  Reported-by: Tom van der Woerdt
  Fixes #4496
  Closes #4505

- http2: expire a timeout at end of stream
  
  To make sure that transfer is being dealt with. Streams without
  Content-Length need a final read to notice the end-of-stream state.
  
  Reported-by: Tom van der Woerdt
  Fixes #4496

Dan Fandrich (18 Oct 2019)
- travis: Add an ARM64 build
  
  Test 323 is failing for some reason, so disable it there for now.

Marcel Raad (18 Oct 2019)
- examples/sslbackend: fix -Wchar-subscripts warning
  
  With the `isdigit` implementation that comes with MSYS2, the argument
  is used as an array subscript, resulting in a -Wchar-subscripts
  warning. `isdigit`'s behavior is undefined if the argument is negative
  and not EOF [0]. As done in lib/curl_ctype.h, cast the `char` variable
  to `unsigned char` to avoid that.
  
  [0] https://en.cppreference.com/w/c/string/byte/isdigit
  
  Closes https://github.com/curl/curl/pull/4503

Daniel Stenberg (18 Oct 2019)
- configure: remove all cyassl references
  
  In particular, this removes the case where configure would find an old
  cyall installation rather than a wolfssl one if present. The library is
  named wolfssl in modern days so there's no real need to keep support for
  the former.
  
  Reported-by: Jacob Barthelmeh
  Closes #4502

Marcel Raad (17 Oct 2019)
- test1162: disable MSYS2's POSIX path conversion
  
  This avoids MSYS2 converting the backslasb in the URL to a slash,
  causing the test to fail.

Daniel Stenberg (17 Oct 2019)
- RELEASE-NOTES: synced

Jay Satiro (16 Oct 2019)
- CURLOPT_TIMEOUT.3: Clarify transfer timeout time includes queue time
  
  Prior to this change some users did not understand that the "request"
  starts when the handle is added to the multi handle, or probably they
  did not understand that some of those transfers may be queued and that
  time is included in timeout.
  
  Reported-by: Jeroen Ooms
  
  Fixes https://github.com/curl/curl/issues/4486
  Closes https://github.com/curl/curl/pull/4489

- [Stian Soiland-Reyes brought this change]

  tool_operate: Fix retry sleep time shown to user when Retry-After
  
  - If server header Retry-After is being used for retry sleep time then
    show that value to the user instead of the normal retry sleep time.
  
  This is a follow-up to 640b973 (7.66.0) which changed curl tool so that
  the value from Retry-After header overrides other retry timing options.
  
  Closes https://github.com/curl/curl/pull/4498

Daniel Stenberg (16 Oct 2019)
- url: normalize CURLINFO_EFFECTIVE_URL
  
  The URL extracted with CURLINFO_EFFECTIVE_URL was returned as given as
  input in most cases, which made it not get a scheme prefixed like before
  if the URL was given without one, and it didn't remove dotdot sequences
  etc.
  
  Added test case 1907 to verify that this now works as intended and as
  before 7.62.0.
  
  Regression introduced in 7.62.0
  
  Reported-by: Christophe Dervieux
  Fixes #4491
  Closes #4493

Marcel Raad (16 Oct 2019)
- tests: line ending fixes for Windows
  
  Mark some files as text.
  
  Closes https://github.com/curl/curl/pull/4490

- tests: use proxy feature
  
  This makes the tests succeed when using --disable-proxy.
  
  Closes https://github.com/curl/curl/pull/4488

- smbserver: fix Python 3 compatibility
  
  Python 2's `ConfigParser` module is spelled `configparser` in Python 3.
  
  Closes https://github.com/curl/curl/pull/4484

- security: silence conversion warning
  
  With MinGW-w64, `curl_socket_t` is is a 32 or 64 bit unsigned integer,
  while `read` expects a 32 bit signed integer.
  Use `sread` instead of `read` to use the correct parameter type.
  
  Closes https://github.com/curl/curl/pull/4483

- connect: silence sign-compare warning
  
  With MinGW-w64 using WinSock, `curl_socklen_t` is signed, while the
  result of `sizeof` is unsigned.
  
  Closes https://github.com/curl/curl/pull/4483

Daniel Stenberg (13 Oct 2019)
- TODO: Handle growing SFTP files
  
  Closes #4344

- KNOWN_BUGS: remove "CURLFORM_CONTENTLEN in an array"
  
  The curl_formadd() function is deprecated and shouldn't be used so the
  real fix for applications is to switch to the curl_mime_* API.

- KNOWN_BUGS: "LDAP on Windows does authentication wrong"
  
  Closes #3116

- appveyor: add a winbuild that uses VS2017
  
  Closes #4482

- [Harry Sintonen brought this change]

  socketpair: fix include and define for older TCP header systems
  
  fixed build for systems that need netinet/in.h for IPPROTO_TCP and are
  missing INADDR_LOOPBACK
  
  Closes #4480

- socketpair: fix double-close in error case
  
  Follow-up to bc2dbef0afc08

- gskit: use the generic Curl_socketpair

- asyn-thread: make use of Curl_socketpair() where available

- socketpair: an implemention for Windows and more
  
  Curl_socketpair() is designed to be used and work everywhere if there's
  no native version or the native version isn't good enough.
  
  Closes #4466

- RELEASE-NOTES: synced

- connect: return CURLE_OPERATION_TIMEDOUT for errno == ETIMEDOUT
  
  Previosly all connect() failures would return CURLE_COULDNT_CONNECT, no
  matter what errno said.
  
  This makes for example --retry work on these transfer failures.
  
  Reported-by: Nathaniel J. Smith
  Fixes #4461
  Clsoes #4462

- cirrus: switch off blackhole status on the freebsd CI machines

- tests: use port 2 instead of 60000 for a safer non-listening port
  
  ... when the tests want "connection refused".

- KNOWN_BUGS: IDN tests failing on Windows
  
  Closes #3747

Dan Fandrich (9 Oct 2019)
- cirrus: Increase the git clone depth.
  
  If more commits are submitted to master between the time of triggering
  the first Cirrus build and the time the final build gets started, the
  desired commit is no longer at HEAD and the build will error out.
  [skip ci]

Daniel Stenberg (9 Oct 2019)
- docs: make sure the --no-progress-meter docs file is in dist too

- docs: document it as --no-progress-meter instead of the reverse
  
  Follow-up to 93373a960c3bb4
  
  Reported-by: infinnovation-dev on github
  Fixes #4474
  Closes #4475

Dan Fandrich (9 Oct 2019)
- cirrus: Switch the FreeBSD 11.x build to 11.3 and add a 13.0 build.
  
  Also, select the images using image_family to get the latest snapshots
  automatically.
  [skip ci]

Daniel Stenberg (8 Oct 2019)
- curl: --no-progress-meter
  
  New option that allows a user to ONLY switch off curl's progress meter
  and leave everything else in "talkative" mode.
  
  Reported-by: Piotr Komborski
  Fixes #4422
  Closes #4470

- TODO: Consult %APPDATA% also for .netrc
  
  Closes #4016

- CURLOPT_TIMEOUT.3: remove the mention of "minutes"
  
  ... just say that limiting operations risk aborting otherwise fine
  working transfers. If that means seconds, minutes or hours, we leave to
  the user.
  
  Reported-by: Martin Gartner
  Closes #4469

- [Andrei Valeriu BICA brought this change]

  docs: added multi-event.c example
  
  Similar to multi-uv.c but using libevent 2. This is a simpler libevent
  integration example then hiperfifo.c.
  
  Closes #4471

Jay Satiro (5 Oct 2019)
- [Nicolas brought this change]

  ldap: fix OOM error on missing query string
  
  - Allow missing queries, don't return NO_MEMORY error in such a case.
  
  It is acceptable for there to be no specified query string, for example:
  
  curl ldap://ldap.forumsys.com
  
  A regression bug in 1b443a7 caused this issue.
  
  This is a partial fix for #4261.
  
  Bug: https://github.com/curl/curl/issues/4261#issuecomment-525543077
  Reported-by: Jojojov@users.noreply.github.com
  Analyzed-by: Samuel Surtees
  
  Closes https://github.com/curl/curl/pull/4467

- [Paul B. Omta brought this change]

  build: Remove unused HAVE_LIBSSL and HAVE_LIBCRYPTO defines
  
  Closes https://github.com/curl/curl/pull/4460

Daniel Stenberg (5 Oct 2019)
- RELEASE-NOTES: synced

- [Stian Soiland-Reyes brought this change]

  curl: ensure HTTP 429 triggers --retry
  
  This completes #3794.
  
  Also make sure the new tests from #4195 are enabled
  
  Closes #4465

Marcel Raad (4 Oct 2019)
- [apique brought this change]

  winbuild: add ENABLE_UNICODE option
  
  Fixes https://github.com/curl/curl/issues/4308
  Closes https://github.com/curl/curl/pull/4309

Daniel Stenberg (4 Oct 2019)
- ngtcp2: adapt to API change
  
  Closes #4457

- cookies: change argument type for Curl_flush_cookies
  
  The second argument is really a 'bool' so use that and pass in TRUE/FALSE
  to make it clear.
  
  Closes #4455

- http2: move state-init from creation to pre-transfer
  
  To make sure that the HTTP/2 state is initialized correctly for
  duplicated handles. It would otherwise easily generate "spurious"
  PRIORITY frames to get sent over HTTP/2 connections when duplicated easy
  handles were used.
  
  Reported-by: Daniel Silverstone
  Fixes #4303
  Closes #4442

- urlapi: fix use-after-free bug
  
  Follow-up from 2c20109a9b5d04
  
  Added test 663 to verify.
  
  Reported by OSS-Fuzz
  Bug: https://crbug.com/oss-fuzz/17954
  
  Closes #4453

- [Paul Dreik brought this change]

  cookie: avoid harmless use after free
  
  This fix removes a use after free which can be triggered by
  the internal cookie fuzzer, but otherwise is probably
  impossible to trigger from an ordinary application.
  
  The following program reproduces it:
  
          curl_global_init(CURL_GLOBAL_DEFAULT);
          CURL*  handle=curl_easy_init();
          CookieInfo* info=Curl_cookie_init(handle,NULL,NULL,false);
          curl_easy_setopt(handle, CURLOPT_COOKIEJAR, "/dev/null");
          Curl_flush_cookies(handle, true);
          Curl_cookie_cleanup(info);
          curl_easy_cleanup(handle);
          curl_global_cleanup();
  
  This was found through fuzzing.
  
  Closes #4454

- [Denis Chaplygin brought this change]

  docs: add note on failed handles not being counted by curl_multi_perform
  
  Closes #4446

- CURLMOPT_MAX_CONCURRENT_STREAMS.3: fix SEE ALSO typo

- [Niall O'Reilly brought this change]

  ESNI: initial build/setup
  
  Closes #4011

- RELEASE-NOTES: synced

- redirect: when following redirects to an absolute URL, URL encode it
  
  ... to make it handle for example (RFC violating) embeded spaces.
  
  Reported-by: momala454 on github
  Fixes #4445
  Closes #4447

- urlapi: fix URL encoding when setting a full URL

- tool_operate: rename functions to make more sense

- curl: create easy handles on-demand and not ahead of time
  
  This should again enable crazy-large download ranges of the style
  [1-10000000] that otherwise easily ran out of memory starting in 7.66.0
  when this new handle allocating scheme was introduced.
  
  Reported-by: Peter Sumatra
  Fixes #4393
  Closes #4438

- [Kunal Ekawde brought this change]

  CURLMOPT_MAX_CONCURRENT_STREAMS: new setopt
  
  Closes #4410

- chunked-encoding: stop hiding the CURLE_BAD_CONTENT_ENCODING error
  
  Unknown content-encoding would get returned as CURLE_WRITE_ERROR if the
  response is chunked-encoded.
  
  Reported-by: Ilya Kosarev
  Fixes #4310
  Closes #4449

Marcel Raad (1 Oct 2019)
- checksrc: fix uninitialized variable warning
  
  The loop doesn't need to be executed without a file argument.
  
  Closes https://github.com/curl/curl/pull/4444

- urlapi: fix unused variable warning
  
  `dest` is only used with `ENABLE_IPV6`.
  
  Closes https://github.com/curl/curl/pull/4444

- lib: silence conversion warnings
  
  Closes https://github.com/curl/curl/pull/4444

- AppVeyor: add 32-bit MinGW-w64 build
  
  With WinSSL and testing enabled so that it would have detected most of
  the warnings fixed in [0] and [1].
  
  [0] https://github.com/curl/curl/pull/4398
  [1] https://github.com/curl/curl/pull/4415
  
  Closes https://github.com/curl/curl/pull/4433

- AppVeyor: remove MSYS2_ARG_CONV_EXCL for winbuild
  
  It's only used for MSYS2 with MinGW.
  
  Closes

Daniel Stenberg (30 Sep 2019)
- [Emil Engler brought this change]

  git: add tests/server/disabled to .gitignore
  
  Closes #4441

- altsvc: accept quoted ma and persist values
  
  As mandated by the spec. Test 1654 is extended to verify.
  
  Closes #4443

- mailmap: a Lucas fix

Alessandro Ghedini (29 Sep 2019)
- [Lucas Pardue brought this change]

  quiche: update HTTP/3 config creation to new API

Daniel Stenberg (29 Sep 2019)
- BINDINGS: PureBasic, Net::Curl for perl and Nim

- BINDINGS: Kapito is an Erlang library, basically a binding

- BINDINGS: added clj-curl
  
  Reported-by: Lucas Severo

- [Jay Satiro brought this change]

  docs: disambiguate CURLUPART_HOST is for host name (ie no port)
  
  Closes #4424

- cookies: using a share with cookies shouldn't enable the cookie engine
  
  The 'share object' only sets the storage area for cookies. The "cookie
  engine" still needs to be enabled or activated using the normal cookie
  options.
  
  This caused the curl command line tool to accidentally use cookies
  without having been told to, since curl switched to using shared cookies
  in 7.66.0.
  
  Test 1166 verifies
  
  Updated test 506
  
  Fixes #4429
  Closes #4434

- setopt: handle ALTSVC set to NULL

- RELEASE-NOTES: synced

- [grdowns brought this change]

  INSTALL: add vcpkg installation instructions
  
  Closes #4435

- [Zenju brought this change]

  FTP: add test for FTPFILE_NOCWD: Avoid redundant CWDs
  
  Add libtest 661
  
  Closes #4417

- [Zenju brought this change]

  FTP: url-decode path before evaluation
  
  Closes #4428

Marcel Raad (27 Sep 2019)
- tests: fix narrowing conversion warnings
  
  `timediff_t` is 64 bits wide also on 32-bit systems since
  commit b1616dad8f0.
  
  Closes https://github.com/curl/curl/pull/4415

Jay Satiro (27 Sep 2019)
- [julian brought this change]

  vtls: Fix comment typo about macosx-version-min compiler flag
  
  Closes https://github.com/curl/curl/pull/4425

Daniel Stenberg (26 Sep 2019)
- [Yechiel Kalmenson brought this change]

  README: minor grammar fix
  
  Closes #4431

- [Spezifant brought this change]

  HTTP3: fix prefix parameter for ngtcp2 build
  
  Closes #4430

- quiche: don't close connection at end of stream!

- quiche: set 'drain' when returning without having drained the queues

- Revert "FTP: url-decode path before evaluation"
  
  This reverts commit 2f036a72d543e96128bd75cb0fedd88815fd42e2.

- HTTP3: merged and simplified the two 'running' sections

- HTTP3: show an --alt-svc using example too

- [Zenju brought this change]

  FTP: url-decode path before evaluation
  
  Closes #4423

- openssl: use strerror on SSL_ERROR_SYSCALL
  
  Instead of showing the somewhat nonsensical errno number, use strerror()
  to provide a more relatable error message.
  
  Closes #4411

- HTTP3: update quic.aiortc.org + add link to server list
  
  Reported-by: Jeremy Lainé

Jay Satiro (26 Sep 2019)
- url: don't set appconnect time for non-ssl/non-ssh connections
  
  Prior to this change non-ssl/non-ssh connections that were reused set
  TIMER_APPCONNECT [1]. Arguably that was incorrect since no SSL/SSH
  handshake took place.
  
  [1]: TIMER_APPCONNECT is publicly known as CURLINFO_APPCONNECT_TIME in
  libcurl and %{time_appconnect} in the curl tool. It is documented as
  "the time until the SSL/SSH handshake is completed".
  
  Reported-by: Marcel Hernandez
  
  Ref: https://github.com/curl/curl/issues/3760
  
  Closes https://github.com/curl/curl/pull/3773

Daniel Stenberg (25 Sep 2019)
- ngtcp2: remove fprintf() calls
  
  - convert some of them to H3BUF() calls to infof()
  - remove some of them completely
  - made DEBUG_HTTP3 defined only if CURLDEBUG is set for now
  
  Closes #4421

- [Jay Satiro brought this change]

  url: fix the NULL hostname compiler warning case
  
  Closes #4403

- [Jay Satiro brought this change]

  travis: move the go install to linux-only
  
  ... to repair the build again
  Closes #4403

- altsvc: correct the #ifdef for the ngtcp2 backend

- altsvc: save h3 as h3-23
  
  Follow-up to d176a2c7e5

- urlapi: question mark within fragment is still fragment
  
  The parser would check for a query part before fragment, which caused it
  to do wrong when the fragment contains a question mark.
  
  Extended test 1560 to verify.
  
  Reported-by: Alex Konev
  Fixes #4412
  Closes #4413

- [Alex Samorukov brought this change]

  HTTP3.md: move -p for mkdir, remove -j for make
  
  - mkdir on OSX/Darwin requires `-p` argument before dir
  
  - portabbly figuring out number of cores is an exercise for somewhere
    else
  
  Closes #4407

Patrick Monnerat (24 Sep 2019)
- os400: getpeername() and getsockname() return ebcdic AF_UNIX sockaddr,
  
  As libcurl now uses these 2 system functions, wrappers are needed on os400
  to convert returned AF_UNIX sockaddrs to ascii.
  
  This is a follow-up to commit 7fb54ef.
  See also #4037.
  Closes #4214

Jay Satiro (24 Sep 2019)
- [Lucas Pardue brought this change]

  strcase: fix raw lowercasing the letter X
  
  Casing mistake in Curl_raw_tolower 'X' wasn't lowercased as 'x' prior to
  this change.
  
  Follow-up to 0023fce which added the function several days ago.
  
  Ref: https://github.com/curl/curl/pull/4401#discussion_r327396546
  
  Closes https://github.com/curl/curl/pull/4408

Daniel Stenberg (23 Sep 2019)
- http2: Expression 'stream->stream_id != - 1' is always true
  
  PVS-Studio warning
  Fixes #4402

- http2: A value is being subtracted from the unsigned variable
  
  PVS-Studio warning
  Fixes #4402

- libssh: part of conditional expression is always true: !result
  
  PVS-Studio warning
  Fixed #4402

- libssh: part of conditional expression is always true
  
  PVS-Studio warning
  Fixes #4402

- libssh: The expression is excessive or contains a misprint
  
  PVS-Studio warning
  Fixes #4402

- quiche: The expression must be surrounded by parentheses
  
  PVS-Studio warning
  Fixes #4402

- vauth: The parameter 'status' must be surrounded by parentheses
  
  PVS-Studio warning
  Fixes #4402

- [Paul Dreik brought this change]

  doh: allow only http and https in debug mode
  
  Otherwise curl may be told to use for instance pop3 to
  communicate with the doh server, which most likely
  is not what you want.
  
  Found through fuzzing.
  
  Closes #4406

- [Paul Dreik brought this change]

  doh: return early if there is no time left
  
  Closes #4406

- [Barry Pollard brought this change]

  http: lowercase headernames for HTTP/2 and HTTP/3
  
  Closes #4401
  Fixes #4400

Marcel Raad (23 Sep 2019)
- vtls: fix narrowing conversion warnings
  
  Curl_timeleft returns `timediff_t`, which is 64 bits wide also on
  32-bit systems since commit b1616dad8f0.
  
  Closes https://github.com/curl/curl/pull/4398

Daniel Stenberg (23 Sep 2019)
- [Joel Depooter brought this change]

  winbuild: Add manifest to curl.exe for proper OS version detection
  
  This is a small fix to commit ebd213270a017a6830928ee2e1f4a9cabc799898
  in pull request #1221. That commit added the CURL_EMBED_MANIFEST flag to
  CURL_RC_FLAGS. However, later in the file CURL_RC_FLAGS is
  overwritten. The fix is to append values to CURL_RC_FLAGS instead of
  overwriting
  
  Closes #4399

- RELEASE-NOTES: synced

Marcel Raad (22 Sep 2019)
- openssl: fix compiler warning with LibreSSL
  
  It was already fixed for BoringSSL in commit a0f8fccb1e0.
  LibreSSL has had the second argument to SSL_CTX_set_min_proto_version
  as uint16_t ever since the function was added in [0].
  
  [0] https://github.com/libressl-portable/openbsd/commit/56f107201baefb5533486d665a58d8f57fd3aeda
  
  Closes https://github.com/curl/curl/pull/4397

Daniel Stenberg (22 Sep 2019)
- curl: exit the create_transfers loop on errors
  
  When looping around the ranges and given URLs to create transfers, all
  errors should exit the loop and return. Previously it would keep
  looping.
  
  Reported-by: SumatraPeter on github
  Bug: #4393
  Closes #4396

Jay Satiro (21 Sep 2019)
- socks: Fix destination host shown on SOCKS5 error
  
  Prior to this change when a server returned a socks5 connect error then
  curl would parse the destination address:port from that data and show it
  to the user as the destination:
  
  curld -v --socks5 10.0.3.1:1080 http://google.com:99
  * SOCKS5 communication to google.com:99
  * SOCKS5 connect to IPv4 172.217.12.206 (locally resolved)
  * Can't complete SOCKS5 connection to 253.127.0.0:26673. (1)
  curl: (7) Can't complete SOCKS5 connection to 253.127.0.0:26673. (1)
  
  That's incorrect because the address:port included in the connect error
  is actually a bind address:port (typically unused) and not the
  destination address:port. This fix changes curl to show the destination
  information that curl sent to the server instead:
  
  curld -v --socks5 10.0.3.1:1080 http://google.com:99
  * SOCKS5 communication to google.com:99
  * SOCKS5 connect to IPv4 172.217.7.14:99 (locally resolved)
  * Can't complete SOCKS5 connection to 172.217.7.14:99. (1)
  curl: (7) Can't complete SOCKS5 connection to 172.217.7.14:99. (1)
  
  curld -v --socks5-hostname 10.0.3.1:1080 http://google.com:99
  * SOCKS5 communication to google.com:99
  * SOCKS5 connect to google.com:99 (remotely resolved)
  * Can't complete SOCKS5 connection to google.com:99. (1)
  curl: (7) Can't complete SOCKS5 connection to google.com:99. (1)
  
  Ref: https://tools.ietf.org/html/rfc1928#section-6
  
  Closes https://github.com/curl/curl/pull/4394

Daniel Stenberg (21 Sep 2019)
- travis: enable ngtcp2 h3-23 builds

- altsvc: both backends run h3-23 now
  
  Closes #4395

- http: fix warning on conversion from int to bit
  
  Follow-up from 03ebe66d70

- urldata: use 'bool' for the bit type on MSVC compilers
  
  Closes #4387
  Fixes #4379

- appveyor: upgrade VS2017 to VS2019
  
  Closes #4383

- [Zenju brought this change]

  FTP: FTPFILE_NOCWD: avoid redundant CWDs
  
  Closes #4382

- cookie: pass in the correct cookie amount to qsort()
  
  As the loop discards cookies without domain set. This bug would lead to
  qsort() trying to sort uninitialized pointers. We have however not found
  it a security problem.
  
  Reported-by: Paul Dreik
  Closes #4386

- [Paul Dreik brought this change]

  urlapi: avoid index underflow for short ipv6 hostnames
  
  If the input hostname is "[", hlen will underflow to max of size_t when
  it is subtracted with 2.
  
  hostname[hlen] will then cause a warning by ubsanitizer:
  
  runtime error: addition of unsigned offset to 0x<snip> overflowed to
  0x<snip>
  
  I think that in practice, the generated code will work, and the output
  of hostname[hlen] will be the first character "[".
  
  This can be demonstrated by the following program (tested in both clang
  and gcc, with -O3)
  
  int main() {
    char* hostname=strdup("[");
    size_t hlen = strlen(hostname);
  
    hlen-=2;
    hostname++;
    printf("character is %d\n",+hostname[hlen]);
    free(hostname-1);
  }
  
  I found this through fuzzing, and even if it seems harmless, the proper
  thing is to return early with an error.
  
  Closes #4389

- [Tatsuhiro Tsujikawa brought this change]

  ngtcp2: compile with latest ngtcp2 + nghttp3 draft-23
  
  Closes #4392

- THANKS-filter: deal with my typos 'Jat' => 'Jay'

- travis: use go master
  
  ... as the boringssl builds needs a very recent version
  
  Co-authored-by: Jat Satiro
  Closes #4361

- tool_operate: removed unused variable 'done'
  
  Fixes warning detected by PVS-Studio
  Fixes #4374

- tool_operate: Expression 'config->resume_from' is always true
  
  Fixes warning detected by PVS-Studio
  Fixes #4374

- tool_getparam: remove duplicate switch case
  
  Fixes warning detected by PVS-Studio
  Fixes #4374

- libssh2: part of conditional expression is always true: !result
  
  Fixes warning detected by PVS-Studio
  Fixes #4374

- urlapi: Expression 'storep' is always true
  
  Fixes warning detected by PVS-Studio
  Fixes #4374

- urlapi: 'scheme' is always true
  
  Fixes warning detected by PVS-Studio
  Fixes #4374

- urlapi: part of conditional expression is always true: (relurl[0] == '/')
  
  Fixes warning detected by PVS-Studio
  Fixes #4374

- setopt: store CURLOPT_RTSP_SERVER_CSEQ correctly
  
  Fixes bug detected by PVS-Studio
  Fixes #4374

- mime: make Curl_mime_duppart() assert if called without valid dst
  
  Fixes warning detected by PVS-Studio
  Fixes #4374

- http_proxy: part of conditional expression is always true: !error
  
  Fixes warning detected by PVS-Studio
  Fixes #4374

- imap: merged two case-branches performing the same action
  
  Fixes warning detected by PVS-Studio
  Fixes #4374

- multi: value '2L' is assigned to a boolean
  
  Fixes warning detected by PVS-Studio
  Fixes #4374

- easy: part of conditional expression is always true: !result
  
  Fixes warning detected by PVS-Studio
  Fixes #4374

- netrc: part of conditional expression is always true: !done
  
  Fixes warning detected by PVS-Studio
  Fixes #4374

- version: Expression 'left > 1' is always true
  
  Fixes warning detected by PVS-Studio
  Fixes #4374

- url: remove dead code
  
  Fixes warning detected by PVS-Studio
  Fixes #4374

- url: part of expression is always true: (bundle->multiuse == 0)
  
  Fixes warning detected by PVS-Studio
  Fixes #4374

- ftp: the conditional expression is always true
  
  ... both !result and (ftp->transfer != FTPTRANSFER_BODY)!
  
  Fixes warning detected by PVS-Studio
  Fixes #4374

- ftp: Expression 'ftpc->wait_data_conn' is always false
  
  Fixes warning detected by PVS-Studio
  Fixes #4374

- ftp: Expression 'ftpc->wait_data_conn' is always true
  
  Fixes warning detected by PVS-Studio
  Fixes #4374

- ftp: part of conditional expression is always true: !result
  
  Fixes warning detected by PVS-Studio
  Fixes #4374

- http: fix Expression 'http->postdata' is always false
  
  Fixes warning detected by PVS-Studio
  Fixes #4374
  Reported-by: Valerii Zapodovnikov

- [Niall O'Reilly brought this change]

  doh: avoid truncating DNS QTYPE to lower octet
  
  Closes #4381

- [Jens Finkhaeuser brought this change]

  urlapi: CURLU_NO_AUTHORITY allows empty authority/host part
  
  CURLU_NO_AUTHORITY is intended for use with unknown schemes (i.e. not
  "file:///") to override cURL's default demand that an authority exists.
  
  Closes #4349

- version: next release will be 7.67.0

- RELEASE-NOTES: synced

- url: only reuse TLS connections with matching pinning
  
  If the requests have different CURLOPT_PINNEDPUBLICKEY strings set, the
  connection should not be reused.
  
  Bug: https://curl.haxx.se/mail/lib-2019-09/0061.html
  Reported-by: Sebastian Haglund
  
  Closes #4347

- README: add OSS-Fuzz badge [skip ci]
  
  Closes #4380

Michael Kaufmann (18 Sep 2019)
- http: merge two "case" statements

Daniel Stenberg (18 Sep 2019)
- [Zenju brought this change]

  FTP: remove trailing slash from path for LIST/MLSD
  
  Closes #4348

- mime: when disabled, avoid C99 macro
  
  Closes #4368

- url: cleanup dangling DOH request headers too
  
  Follow-up to 9bc44ff64d9081
  
  Credit to OSS-Fuzz
  Bug: https://crbug.com/oss-fuzz/17269
  
  Closes #4372

- [Christoph M. Becker brought this change]

  http2: relax verification of :authority in push promise requests
  
  If the :authority pseudo header field doesn't contain an explicit port,
  we assume it is valid for the default port, instead of rejecting the
  request for all ports.
  
  Ref: https://curl.haxx.se/mail/lib-2019-09/0041.html
  
  Closes #4365

- doh: clean up dangling DOH handles and memory on easy close
  
  If you set the same URL for target as for DoH (and it isn't a DoH
  server), like "https://example.com" in both, the easy handles used for
  the DoH requests could be left "dangling" and end up not getting freed.
  
  Reported-by: Paul Dreik
  Closes #4366

- unit1655: make it C90 compliant
  
  Unclear why this was not detected in the CI.
  
  Follow-up to b7666027296a

- smb: check for full size message before reading message details
  
  To avoid reading of uninitialized data.
  
  Assisted-by: Max Dymond
  Bug: https://crbug.com/oss-fuzz/16907
  Closes #4363

- quiche: persist connection details
  
  ... like we do for other protocols at connect time. This makes "curl -I"
  and other things work.
  
  Reported-by: George Liu
  Fixes #4358
  Closes #4360

- openssl: fix warning with boringssl and SSL_CTX_set_min_proto_version
  
  Follow-up to ffe34b7b59
  Closes #4359

- [Paul Dreik brought this change]

  doh: fix undefined behaviour and open up for gcc and clang optimization
  
  The undefined behaviour is annoying when running fuzzing with
  sanitizers. The codegen is the same, but the meaning is now not up for
  dispute. See https://cppinsights.io/s/516a2ff4
  
  By incrementing the pointer first, both gcc and clang recognize this as
  a bswap and optimizes it to a single instruction.  See
  https://godbolt.org/z/994Zpx
  
  Closes #4350

- [Paul Dreik brought this change]

  doh: fix (harmless) buffer overrun
  
  Added unit test case 1655 to verify.
  Close #4352
  
  the code correctly finds the flaws in the old code,
  if one temporarily restores doh.c to the old version.

Alessandro Ghedini (15 Sep 2019)
- docs: remove trailing ':' from section names in CURLOPT_TRAILER* man

- docs: fix typo in CURLOPT_HTTP_VERSION man

GitHub (14 Sep 2019)
- [Daniel Stenberg brought this change]

  CI: inintial github action job
  
  First shot at a CI build on github actions

Daniel Stenberg (13 Sep 2019)
- appveyor: add a winbuild
  
  Assisted-by: Marcel Raad
  Assisted-by: Jay Satiro
  
  Closes #4324

- FTP: allow "rubbish" prepended to the SIZE response
  
  This is a protocol violation but apparently there are legacy proprietary
  servers doing this.
  
  Added test 336 and 337 to verify.
  
  Reported-by: Philippe Marguinaud
  Closes #4339

- [Zenju brought this change]

  FTP: skip CWD to entry dir when target is absolute
  
  Closes #4332

Kamil Dudka (13 Sep 2019)
- curl: fix memory leaked by parse_metalink()
  
  This commit fixes a regression introduced by curl-7_65_3-5-gb88940850.
  Detected by tests 2005, 2008, 2009, 2010, 2011, and 2012 with valgrind
  and libmetalink enabled.
  
  Closes #4326

Daniel Stenberg (13 Sep 2019)
- parsedate: still provide the name arrays when disabled
  
  If FILE or FTP are enabled, since they also use them!
  
  Reported-by: Roland Hieber
  Fixes #4325
  Closes #4343

- [Gilles Vollant brought this change]

  curl:file2string: load large files much faster
  
  ... by using a more efficient realloc scheme.
  
  Bug: https://curl.haxx.se/mail/lib-2019-09/0045.html
  Closes #4336

- openssl: close_notify on the FTP data connection doesn't mean closure
  
  For FTPS transfers, curl gets close_notify on the data connection
  without that being a signal to close the control connection!
  
  Regression since 3f5da4e59a556fc (7.65.0)
  
  Reported-by: Zenju on github
  Reviewed-by: Jay Satiro
  Fixes #4329
  Closes #4340

- [Jimmy Gaussen brought this change]

  docs/HTTP3: fix `--with-ssl` ngtcp2 configure flag
  
  Closes #4338

- RELEASE-NOTES: synced

- curlver: bump to 7.66.1

- [Zenju brought this change]

  setopt: make it easier to add new enum values
  
  ... by using the *_LAST define names better.
  
  Closes #4321

- asyn-thread: s/AF_LOCAL/AF_UNIX for Solaris
  
  Reported-by: Dagobert Michelsen
  Fixes #4328
  Closes #4333

- [Bernhard Walle brought this change]

  winbuild/MakefileBuild.vc: Add vssh
  
  Without that modification, the Windows build using the makefiles doesn't
  work.
  
  Signed-off-by: Bernhard Walle <bernhard.walle@posteo.eu>
  
  Fixes #4322
  Closes #4323

Bernhard Walle (11 Sep 2019)
- winbuild/MakefileBuild.vc: Fix line endings
  
  The file had mixed line endings.
  
  Signed-off-by: Bernhard Walle <bernhard.walle@posteo.eu>

Jay Satiro (11 Sep 2019)
- ldap: Stop using wide char version of ldapp_err2string
  
  Despite ldapp_err2string being documented by MS as returning a
  PCHAR (char *), when UNICODE it is mapped to ldap_err2stringW and
  returns PWCHAR (wchar_t *).
  
  We have lots of code that expects ldap_err2string to return char *,
  most of it failf used like this:
  
  failf(data, "LDAP local: Some error: %s", ldap_err2string(rc));
  
  Closes https://github.com/curl/curl/pull/4272

Version 7.66.0 (10 Sep 2019)

Daniel Stenberg (10 Sep 2019)
- RELEASE-NOTES: curl 7.66.0

- THANKS: from the 7.66.0 release

- curl: make sure the parallel transfers do them all
  
  The logic could erroneously break the loop too early before all
  transfers had been transferred.
  
  Reported-by: Tom van der Woerdt
  Fixes #4316
  Closes #4317

- urlapi: one colon is enough for the strspn() input (typo)

- urlapi: verify the IPv6 numerical address
  
  It needs to parse correctly. Otherwise it could be tricked into letting
  through a-f using host names that libcurl would then resolve. Like
  '[ab.be]'.
  
  Reported-by: Thomas Vegas
  Closes #4315

- [Clément Notin brought this change]

  openssl: use SSL_CTX_set_<min|max>_proto_version() when available
  
  OpenSSL 1.1.0 adds SSL_CTX_set_<min|max>_proto_version() that we now use
  when available.  Existing code is preserved for older versions of
  OpenSSL.
  
  Closes #4304

- [Clément Notin brought this change]

  openssl: indent, re-organize and add comments

- [migueljcrum brought this change]

  sspi: fix memory leaks
  
  Closes #4299

- travis: disable ngtcp2 builds (again)

- Curl_fillreadbuffer: avoid double-free trailer buf on error
  
  Reviewed-by: Jay Satiro
  Reported-by: Thomas Vegas
  
  Closes #4307

- tool_setopt: handle a libcurl build without netrc support
  
  Reported-by: codesniffer13 on github
  Fixes #4302
  Closes #4305

- security:read_data fix bad realloc()
  
  ... that could end up a double-free
  
  CVE-2019-5481
  Bug: https://curl.haxx.se/docs/CVE-2019-5481.html

- [Thomas Vegas brought this change]

  tftp: Alloc maximum blksize, and use default unless OACK is received
  
  Fixes potential buffer overflow from 'recvfrom()', should the server
  return an OACK without blksize.
  
  Bug: https://curl.haxx.se/docs/CVE-2019-5482.html
  CVE-2019-5482

- [Thomas Vegas brought this change]

  tftp: return error when packet is too small for options

- KNOWN_BUGS/TODO: cleanup and remove outdated issues

- RELEASE-NOTES: synced

- netrc: free 'home' on error
  
  Follow-up to f9c7ba9096ec2
  
  Coverity CID 1453474
  
  Closes #4291

- urldata: avoid 'generic', use dedicated pointers
  
  For the 'proto' union within the connectdata struct.
  
  Closes #4290

- cleanup: move functions out of url.c and make them static
  
  Closes #4289

- smtp: check for and bail out on too short EHLO response
  
  Otherwise, a three byte response would make the smtp_state_ehlo_resp()
  function misbehave.
  
  Credit to OSS-Fuzz
  Bug: https://crbug.com/oss-fuzz/16918
  
  Assisted-by: Max Dymond
  
  Closes #4287

- smb: init *msg to NULL in smb_send_and_recv()
  
  ... it might otherwise return OK from this function leaving that pointer
  uninitialized.
  
  Bug: https://crbug.com/oss-fuzz/16907
  
  Closes #4286

- ROADMAP: updated after recent user poll
  
  In rough prio order

- THANKS: remove duplicate

- Curl_addr2string: take an addrlen argument too
  
  This allows the function to figure out if a unix domain socket has a
  file name or not associated with it! When a socket is created with
  socketpair(), as done in the fuzzer testing, the path struct member is
  uninitialized and must not be accessed.
  
  Bug: https://crbug.com/oss-fuzz/16699
  
  Closes #4283

- [Rolf Eike Beer brought this change]

  CMake: remove needless newlines at end of gss variables

- [Rolf Eike Beer brought this change]

  CI: remove duplicate configure flag for LGTM.com

- [Rolf Eike Beer brought this change]

  CMake: use platform dependent name for dlopen() library
  
  Closes #4279

- quiche: expire when poll returned data
  
  ... to make sure we continue draining the queue until empty
  
  Closes #4281

- quiche: decrease available buffer size, don't assign it!
  
  Found-by: Jeremy Lainé

- RELEASE-NOTES: synced

- [Kyohei Kadota brought this change]

  curl: fix include conditions

- [Kyohei Kadota brought this change]

  plan9: fix installation instructions
  
  Closes #4276

- ngtcp2: on h3 stream close, call expire
  
  ... to trigger a new read to detect the stream close!
  
  Closes #4275

- [Tatsuhiro Tsujikawa brought this change]

  ngtcp2: build latest ngtcp2 and ngtcp2_crypto_openssl
  
  Closes #4278

- ngtcp2: set flow control window to stream buffer size
  
  Closes #4274

- [Christopher Head brought this change]

  CURLOPT_HEADERFUNCTION.3: clarify
  
  Closes #4273

- CURLINFO docs: mention that in redirects times are added
  
  Suggested-by: Brandon Dong
  Fixes #4250
  Closes #4269

- travis: enable ngtcp2 builds again
  
  Switched to the openssl-quic-draft-22 openssl branch.
  
  Closes #4271

- HTTP3: switched openssl branch to use

- [Tatsuhiro Tsujikawa brought this change]

  ngtcp2: Build with latest ngtcp2 and ngtcp2_crypto_openssl
  
  Closes #4270

- http2: when marked for closure and wanted to close == OK
  
  It could otherwise return an error even when closed correctly if GOAWAY
  had been received previously.
  
  Reported-by: Tom van der Woerdt
  Fixes #4267
  Closes #4268

- RELEASE-NOTES: synced

- build-openssl: fix build with Visual Studio 2019
  
  Reviewed-by: Marcel Raad
  Contributed-by: osabc on github
  Fixes #4188
  Closes #4266

Kamil Dudka (26 Aug 2019)
- vauth: return CURLE_AUTH_ERROR on gss_init_sec_context() failure
  
  This is a follow-up to https://github.com/curl/curl/pull/3864 .
  
  Closes #4224

Daniel Stenberg (26 Aug 2019)
- KNOWN_BUGS: USE_UNIX_SOCKETS on Windows
  
  Closes #4040

- quiche: send the HTTP body correctly on callback uploads
  
  Closes #4265

- travis: disable ngtcp2 builds (temporarily)
  
  Just too many API changes right now
  
  Closes #4264

- ngtcp2: add support for SSLKEYLOGFILE
  
  Closes #4260

- ngtcp2: improve h3 response receiving
  
  Closes #4259

- ngtcp2: use nghttp3_version()

- ngtcp2: sync with upstream API changes
  
  Assisted-by: Tatsuhiro Tsujikawa

- [Kyle Abramowitz brought this change]

  scp: fix directory name length used in memcpy
  
  Fix read off end of array due to bad pointer math in getworkingpath for
  SCP home directory case.
  
  Closes #4258

- http: the 'closed' struct field is used by both ngh2 and ngh3
  
  and remove 'header_recvbuf', not used for anything
  
  Reported-by: Jeremy Lainé
  
  Closes #4257

- ngtcp2: accept upload via callback
  
  Closes #4256

- defines: avoid underscore-prefixed defines
  
  Double-underscored or underscore plus uppercase letter at least.
  
  ... as they're claimed to be reserved.
  
  Reported-by: patnyb on github
  
  Fixes #4254
  Closes #4255

- travis: add a build using ngtcp2 + nghttp3 (and a patched OpenSSL)
  
  Runs no tests
  
  Closes #4253

- travis: bump to using nghttp2 version 1.39.2
  
  Closes #4252

- [Gisle Vanem brought this change]

  docs/examples/curlx: fix errors
  
  Initialise 'mimetype' and require the -p12 arg.
  
  Closes #4248

- cleanup: remove DOT_CHAR completely
  
  Follow-up to f9c7ba9096ec
  
  The use of DOT_CHAR for ".ssh" was probably a mistake and is removed
  now.
  
  Pointed-out-by: Gisle Vanem
  Bug: https://github.com/curl/curl/pull/4230#issuecomment-522960638
  
  Closes #4247

- spnego_sspi: add typecast to fix build warning
  
  Reported in build "Win32 target on Debian Stretch (64-bit) -
  i686-w64-mingw32 - gcc-20170516"
  
  Closes #4245

- openssl: build warning free with boringssl
  
  Closes #4244

- curl: make --libcurl use CURL_HTTP_VERSION_3
  
  Closes #4243

- ngtcp2: make postfields-set posts work
  
  Closes #4242

- http: remove chunked-encoding and expect header use for HTTP/3

- [Alessandro Ghedini brought this change]

  configure: use pkg-config to detect quiche
  
  This removes the need to hard-code the quiche target path in
  configure.ac.
  
  This depends on https://github.com/cloudflare/quiche/pull/128
  
  Closes #4237

- CURLOPT_SSL_VERIFYHOST: treat the value 1 as 2
  
  For a long time (since 7.28.1) we've returned error when setting the
  value to 1 to make applications notice that we stopped supported the old
  behavior for 1. Starting now, we treat 1 and 2 exactly the same.
  
  Closes #4241

- curl: use .curlrc (with a dot) on Windows as well
  
  Fall-back to _curlrc if the dot-version is missing.
  
  Co-Authored-By: Steve Holme
  
  Closes #4230

- netrc: make the code try ".netrc" on Windows as well
  
  ... but fall back and try "_netrc" too if the dot version didn't work.
  
  Co-Authored-By: Steve Holme

- ngtcp2: use ngtcp2_version() to get the run-time version
  
  ... which of course doesn't have to be the same used at build-time.
  
  Function just recently merged in ngtcp2.

- ngtcp2: move the h3 initing to immediately after the rx key
  
  To fix a segfault and to better deal with 0-RTT
  
  Assisted-by: Tatsuhiro Tsujikawa

- [Alessandro Ghedini brought this change]

  quiche: register debug callback once and earlier
  
  The quiche debug callback is global and can only be initialized once, so
  make sure we don't do it multiple times (e.g. if multiple requests are
  executed).
  
  In addition this initializes the callback before the connection is
  created, so we get logs for the handshake as well.
  
  Closes #4236

- ssh: add a generic Curl_ssh_version function for SSH backends
  
  Closes #4235

- base64: check for SSH, not specific SSH backends

- vssh: move ssh init/cleanup functions into backend code

- vssh: create directory for SSH backend code

- TODO/ROADMAP: remove "refuse downgrade redirects" and HTTP/3
  
  HTTP3 is now already in full progress
  
  Downgrade redirects can be achived almost exactly like that by setting
  CURLOPT_REDIR_PROTOCOLS.

- RELEASE-NOTES: synced

- travis: add a quiche build
  
  Closes #4207

- http: fix use of credentials from URL when using HTTP proxy
  
  When a username and password are provided in the URL, they were wrongly
  removed from the stored URL so that subsequent uses of the same URL
  wouldn't find the crendentials. This made doing HTTP auth with multiple
  connections (like Digest) mishave.
  
  Regression from 46e164069d1a5230 (7.62.0)
  
  Test case 335 added to verify.
  
  Reported-by: Mike Crowe
  
  Fixes #4228
  Closes #4229

- [Mike Crowe brought this change]

  tests: Replace outdated test case numbering documentation
  
  Tests are no longer grouped by numeric range[1]. Let's stop saying that
  and provide some alternative advice for numbering tests.
  
  [1] https://curl.haxx.se/mail/lib-2019-08/0043.html
  
  Closes #4227

- travis: reduce number of torture tests in 'coverage'
  
  ... to make it complete in time. This cut seems not almost not affect
  the coverage percentage and yet completes within 35 minutes on travis
  where the previous runs recently always timed out after 50.
  
  Closes #4223

- [Igor Makarov brought this change]

  configure: use -lquiche to link to quiche
  
  Closes #4226

- ngtcp2: provide the callbacks as a static struct
  
  ... instead of having them in quicsocket

- [Tatsuhiro Tsujikawa brought this change]

  ngtcp2: add missing nghttp3_conn_add_write_offset call
  
  Closes #4225

- [Tatsuhiro Tsujikawa brought this change]

  ngtcp2: deal with stream close

- [Tatsuhiro Tsujikawa brought this change]

  ngtcp2: Consume QUIC STREAM data properly

- [Tatsuhiro Tsujikawa brought this change]

  ngtcp2: don't reinitialize SSL on Retry

- multi: getsock improvements for QUIC connecting

- connect: connections are persistent by default for HTTP/3

- quiche: happy eyeballs
  
  Closes #4220

- ngtcp2: do QUIC connections happy-eyeballs friendly

- curl_version: bump string buffer size to 250
  
  With HTTP/3 libs and plenty TLS libs, I manged to hit the limit (which
  causes a truncated output).

- CURLOPT_ALTSVC.3: use a "" file name to not load from a file

Jay Satiro (14 Aug 2019)
- vauth: Use CURLE_AUTH_ERROR for auth function errors
  
  - Add new error code CURLE_AUTH_ERROR.
  
  Prior to this change auth function errors were signaled by
  CURLE_OUT_OF_MEMORY and CURLE_RECV_ERROR, and neither one was
  technically correct.
  
  Ref: https://github.com/curl/curl/pull/3848
  
  Co-authored-by: Dominik Hölzl
  
  Closes https://github.com/curl/curl/pull/3864

Daniel Stenberg (13 Aug 2019)
- curl_version_info: make the quic_version a const
  
  Follow-up from 1a2df1518ad8653f
  
  Closes #4222

- examples: add http3.c, altsvc.c and http3-present.c
  
  Closes #4221

Peter Wu (13 Aug 2019)
- nss: use TLSv1.3 as default if supported
  
  SSL_VersionRangeGetDefault returns (TLSv1.0, TLSv1.2) as supported
  range in NSS 3.45. It looks like the intention is to raise the minimum
  version rather than lowering the maximum, so adjust accordingly. Note
  that the caller (nss_setup_connect) initializes the version range to
  (TLSv1.0, TLSv1.3), so there is no need to check for >= TLSv1.0 again.
  
  Closes #4187
  Reviewed-by: Daniel Stenberg
  Reviewed-by: Kamil Dudka

Daniel Stenberg (13 Aug 2019)
- quic.h: remove unused proto

- curl_version_info.3: mentioned ALTSVC and HTTP3
  
  ... and sorted the list alphabetically

- lib/quic.c: unused - removed

- CURLOPT_ALTSVC_CTRL.3: remove CURLALTSVC_ALTUSED
  
  Follow-up to 98c3f148 that removed it from the header file

- [Junho Choi brought this change]

  docs/HTTP3: simplify quiche build instruction
  
  Use --recursive to get boringssl in one line
  
  Closes #4219

- altsvc: make it use h3-22 with ngtcp2 as well

- ngtcp2: initial h3 request work
  
  Closes #4217

- curl_version_info: offer quic (and h3) library info
  
  Closes #4216

- HTTP3: use ngtcp2's draft-22 branch

- RELEASE-NOTES: synced

- CURLOPT_READFUNCTION.3: provide inline example
  
  ... instead of mentioning one in another place

- [Tatsuhiro Tsujikawa brought this change]

  ngtcp2: send HTTP/3 request with nghttp3
  
  This commit makes sending HTTP/3 request with nghttp3 work.  It
  minimally receives HTTP response and calls nghttp3 callbacks, but no
  processing is made at the moment.
  
  Closes #4215

- nghttp3: initial h3 template code added

- nghttp3: required when ngtcp2 is used for QUIC
  
  - checked for by configure
  - updated docs/HTTP3.md
  - shown in the version string
  
  Closes #4210

- [Eric Wong brought this change]

  asyn-thread: issue CURL_POLL_REMOVE before closing socket
  
  This avoids EBADF errors from EPOLL_CTL_DEL operations in the
  ephiperfifo.c example.  EBADF is dangerous in multi-threaded
  applications where I rely on epoll_ctl to operate on the same
  epoll description from different threads.
  
  Follow-up to eb9a604f8d7db8
  
  Bug: https://curl.haxx.se/mail/lib-2019-08/0026.html
  Closes #4211

- [Carlo Marcelo Arenas Belón brought this change]

  configure: avoid undefined check_for_ca_bundle
  
  instead of using a "greater than 0" test, check for variable being
  set, as it is always set to 1, and could be left unset if non of
  OPENSSL MBEDTLS GNUTLS WOLFSSL is being configured for.
  
  Closes #4213

- [Tatsuhiro Tsujikawa brought this change]

  ngtcp2: Send ALPN h3-22
  
  Closes #4212

- [Tatsuhiro Tsujikawa brought this change]

  ngtcp2: use ngtcp2_settings_default and specify initial_ts

- curl_global_init_mem.3: mention it was added in 7.12.0

- [Tatsuhiro Tsujikawa brought this change]

  ngtcp2: make the QUIC handshake work
  
  Closes #4209

- [Alex Mayorga brought this change]

  HTTP3.md: Update quiche build instructions
  
  Added cloning for quiche and BoringSSL and modified the build
  instructions so they work on a clean folder.
  
  Closes #4208

- CURLOPT_H3: removed
  
  There's no use for this anymore and it was never in a release.
  
  Closes #4206

- http3: make connection reuse work
  
  Closes #4204

- quiche: add SSLKEYLOGFILE support

- cleanup: s/curl_debug/curl_dbg_debug in comments and docs
  
  Leftovers from the function rename back in 76b63489495
  
  Reported-by: Gisle Vanem
  Bug: https://github.com/curl/curl/commit/f3e0f071b14fcb46a453f69bdf4e062bcaacf362#com
  mitcomment-34601751
  
  Closes #4203

- RELEASE-NOTES: synced

- alt-svc: add protocol version selection masking
  
  So that users can mask in/out specific HTTP versions when Alt-Svc is
  used.
  
   - Removed "h2c" and updated test case accordingly
   - Changed how the altsvc struct is laid out
   - Added ifdefs to make the unittest run even in a quiche-tree
  
  Closes #4201

- http3: fix the HTTP/3 in the request, make alt-svc set right versions
  
  Closes #4200

- alt-svc: send Alt-Used: in redirected requests
  
  RFC 7838 section 5:
  
     When using an alternative service, clients SHOULD include an Alt-Used
     header field in all requests.
  
  Removed CURLALTSVC_ALTUSED again (feature is still EXPERIMENTAL thus
  this is deemed ok).
  
  You can disable sending this header just like you disable any other HTTP
  header in libcurl.
  
  Closes #4199

- CURLOPT_HTTP_VERSION: seting this to 3 forces HTTP/3 use directly
  
  Even though it cannot fall-back to a lower HTTP version automatically. The
  safer way to upgrade remains via CURLOPT_ALTSVC.
  
  CURLOPT_H3 no longer has any bits that do anything and might be removed
  before we remove the experimental label.
  
  Updated the curl tool accordingly to use "--http3".
  
  Closes #4197

- docs/ALTSVC: remove what works and the experimental explanation
  
  Also, put the TODO items at the bottom.
  
  Closes #4198

- docs/EXPERIMENTAL: explain what it means and what's experimental now

- curl: make use of CURLINFO_RETRY_AFTER when retrying
  
  If a Retry-After: header was used in the response, that value overrides
  other retry timing options.
  
  Fixes #3794
  Closes #4195

- curl: use CURLINFO_PROTOCOL to check for HTTP(s)
  
  ... instead of CURLINFO_EFFECTIVE_URL to avoid string operations.

- CURLINFO_RETRY_AFTER: parse the Retry-After header value
  
  This is only the libcurl part that provides the information. There's no
  user of the parsed value. This change includes three new tests for the
  parser.
  
  Ref: #3794

- docs/ALTSVC.md: first basic file format description

- curl: have -w's 'http_version' show '3' for HTTP/3
  
  Closes #4196

- curl.h: add CURL_HTTP_VERSION_3 to the version enum
  
  It can't be set for CURLOPT_HTTP_VERSION, but it can be extracted with
  CURLINFO_HTTP_VERSION.

- quiche: make use of the connection timeout API properly

- quiche: make POSTFIELDS posts work

- quiche: improved error handling and memory cleanups

- quiche: flush egress in h3_stream_recv() too

- RELEASE-NOTES: synced

Jay Satiro (6 Aug 2019)
- [Patrick Monnerat brought this change]

  os400: take care of CURLOPT_SASL_AUTHZID in curl_easy_setopt_ccsid().
  
  Ref: https://github.com/curl/curl/issues/3653
  Ref: https://github.com/curl/curl/pull/3790
  
  NOTE: This commit was cherry-picked and is part of a series of commits
  that added the authzid feature for upcoming 7.66.0. The series was
  temporarily reverted in db8ec1f so that it would not ship in a 7.65.x
  patch release.
  
  Closes https://github.com/curl/curl/pull/4186

- tests: Fix the line endings for the SASL alt-auth tests
  
  - Change data and protocol sections to CRLF line endings.
  
  Prior to this change the tests would fail or hang, which is because
  certain sections such as protocol require CRLF line endings.
  
  Follow-up to grandparent commit which added the tests.
  
  Ref: https://github.com/curl/curl/issues/3653
  Ref: https://github.com/curl/curl/pull/3790
  
  NOTE: This commit was cherry-picked and is part of a series of commits
  that added the authzid feature for upcoming 7.66.0. The series was
  temporarily reverted in db8ec1f so that it would not ship in a 7.65.x
  patch release.
  
  Closes https://github.com/curl/curl/pull/4186

- [Steve Holme brought this change]

  examples: Added SASL PLAIN authorisation identity (authzid) examples
  
  Ref: https://github.com/curl/curl/issues/3653
  Ref: https://github.com/curl/curl/pull/3790
  
  NOTE: This commit was cherry-picked and is part of a series of commits
  that added the authzid feature for upcoming 7.66.0. The series was
  temporarily reverted in db8ec1f so that it would not ship in a 7.65.x
  patch release.
  
  Closes https://github.com/curl/curl/pull/4186

- [Steve Holme brought this change]

  curl: --sasl-authzid added to support CURLOPT_SASL_AUTHZID from the tool
  
  Ref: https://github.com/curl/curl/issues/3653
  Ref: https://github.com/curl/curl/pull/3790
  
  NOTE: This commit was cherry-picked and is part of a series of commits
  that added the authzid feature for upcoming 7.66.0. The series was
  temporarily reverted in db8ec1f so that it would not ship in a 7.65.x
  patch release.
  
  Closes https://github.com/curl/curl/pull/4186

- [Steve Holme brought this change]

  sasl: Implement SASL authorisation identity via CURLOPT_SASL_AUTHZID
  
  Added the ability for the calling program to specify the authorisation
  identity (authzid), the identity to act as, in addition to the
  authentication identity (authcid) and password when using SASL PLAIN
  authentication.
  
  Fixes #3653
  Closes #3790
  
  NOTE: This commit was cherry-picked and is part of a series of commits
  that added the authzid feature for upcoming 7.66.0. The series was
  temporarily reverted in db8ec1f so that it would not ship in a 7.65.x
  patch release.
  
  Closes https://github.com/curl/curl/pull/4186

Daniel Stenberg (6 Aug 2019)
- docs/HTTP3: refreshed as it is now in master and HTTP/3 can be tested

- [Yiming Jing brought this change]

  mesalink: implement client authentication
  
  Closes #4184

- curl_multi_poll: a sister to curl_multi_wait() that waits more
  
  Repeatedly we see problems where using curl_multi_wait() is difficult or
  just awkward because if it has no file descriptor to wait for
  internally, it returns immediately and leaves it to the caller to wait
  for a small amount of time in order to avoid occasional busy-looping.
  
  This is often missed or misunderstood, leading to underperforming
  applications.
  
  This change introduces curl_multi_poll() as a replacement drop-in
  function that accepts the exact same set of arguments. This function
  works identically to curl_multi_wait() - EXCEPT - for the case when
  there's nothing to wait for internally, as then this function will by
  itself wait for a "suitable" short time before it returns. This
  effectiely avoids all risks of busy-looping and should also make it less
  likely that apps "over-wait".
  
  This also changes the curl tool to use this funtion internally when
  doing parallel transfers and changes curl_easy_perform() to use it
  internally.
  
  Closes #4163

- quiche:h3_stream_recv return 0 at end of stream
  
  ... and remove some verbose messages we don't need. Made transfers from
  facebook.com work better.

- altsvc: make quiche use h3-22 now

- quiche: show the actual version number

- quiche: first working HTTP/3 request
  
   - enable debug log
   - fix use of quiche API
   - use download buffer
   - separate header/body
  
  Closes #4193

- http09: disable HTTP/0.9 by default in both tool and library
  
  As the plan has been laid out in DEPRECATED. Update docs accordingly and
  verify in test 1174. Now requires the option to be set to allow HTTP/0.9
  responses.
  
  Closes #4191

- quiche: initial h3 request send/receive

- lib/Makefile.am: make checksrc run in vquic too

- altsvc: fix removal of expired cache entry
  
  Closes #4192

- RELEASE-NOTES: synced

Steve Holme (4 Aug 2019)
- md4: Use our own MD4 implementation when no crypto libraries are available
  
  Closes #3780

- md4: No need to include Curl_md4.h for each TLS library

- md4: No need for the NTLM code to call Curl_md4it() for each TLS library
  
  As the NTLM code no longer calls any of TLS libraries' specific MD4
  functions, there is no need to call this function for each #ifdef.

- md4: Move the mbed TLS MD4 implementation out of the NTLM code

- md4: Move the WinCrypt implementation out of the NTLM code

- md4: Move the SecureTransport implementation out of the NTLM code

- md4: Use the Curl_md4it() function for OpenSSL based NTLM

- md4: Move the GNU TLS gcrypt MD4 implementation out of the NTLM code

- md4: Move the GNU TLS Nettle MD4 implementation out of the NTLM code

Jay Satiro (4 Aug 2019)
- OS400: Add CURLOPT_H3 symbols
  
  Follow-up to 3af0e76 which added experimental H3 support.
  
  Closes https://github.com/curl/curl/pull/4185

Daniel Stenberg (3 Aug 2019)
- url: make use of new HTTP version if alt-svc has one

- url: set conn->transport to default TCP at init time

- altsvc: with quiche, use the quiche h3 alpn string
  
  Closes #4183

- alt-svc: more liberal ALPN name parsing
  
  Allow pretty much anything to be part of the ALPN identifier. In
  particular minus, which is used for "h3-20" (in-progress HTTP/3
  versions) etc.
  
  Updated test 356.
  Closes #4182

- quiche: use the proper HTTP/3 ALPN

- quiche: add failf() calls for two error cases
  
  To aid debugging
  
  Closes #4181

- mailmap: added Kyohei Kadota

Kamil Dudka (1 Aug 2019)
- http_negotiate: improve handling of gss_init_sec_context() failures
  
  If HTTPAUTH_GSSNEGOTIATE was used for a POST request and
  gss_init_sec_context() failed, the POST request was sent
  with empty body.  This commit also restores the original
  behavior of `curl --fail --negotiate`, which was changed
  by commit 6c6035532383e300c712e4c1cd9fdd749ed5cf59.
  
  Add regression tests 2077 and 2078 to cover this.
  
  Fixes #3992
  Closes #4171

Daniel Stenberg (1 Aug 2019)
- mailmap: added 4 more names
  
  Evgeny Grin, Peter Pih, Anton Malov and Marquis de Muesli

- mailmap: add Giorgos Oikonomou

- src/makefile: fix uncompressed hugehelp.c generation
  
  Regression from 5cf5d57ab9 (7.64.1)
  
  Fixed-by: Lance Ware
  Fixes #4176
  Closes #4177

- appveyor: pass on -k to make

- timediff: make it 64 bit (if possible) even with 32 bit time_t
  
  ... to make it hold microseconds too.
  
  Fixes #4165
  Closes #4168

- ROADMAP: parallel transfers are merged now

- getenv: support up to 4K environment variable contents on windows
  
  Reported-by: Michal Čaplygin
  Fixes #4174
  Closes #4175

- [Kyohei Kadota brought this change]

  plan9: add support for running on Plan 9
  
  Closes #3701

- [Kyohei Kadota brought this change]

  ntlm: explicit type casting

- [Justin brought this change]

  curl.h: fix outdated comment
  
  Closes #4167

- curl: remove outdated comment
  
  Turned bad with commit b8894085000
  
  Reported-by: niallor on github
  Fixes #4172
  Closes #4173

- cleanup: remove the 'numsocks' argument used in many places
  
  It was used (intended) to pass in the size of the 'socks' array that is
  also passed to these functions, but was rarely actually checked/used and
  the array is defined to a fixed size of MAX_SOCKSPEREASYHANDLE entries
  that should be used instead.
  
  Closes #4169

- readwrite_data: repair setting the TIMER_STARTTRANSFER stamp
  
  Regression, broken in commit 65eb65fde64bd5f (curl 7.64.1)
  
  Reported-by: Jonathan Cardoso Machado
  Assisted-by: Jay Satiro
  
  Fixes #4136
  Closes #4162

- mailmap: Amit Katyal

- asyn-thread: removed unused variable
  
  Follow-up to eb9a604f. Mistake caused by me when I edited the commit
  before push...

- RELEASE-NOTES: synced

- [Amit Katyal brought this change]

  asyn-thread: create a socketpair to wait on
  
  Closes #4157

- curl: cap the maximum allowed values for retry time arguments
  
  ... to avoid integer overflows later when multiplying with 1000 to
  convert seconds to milliseconds.
  
  Added test 1269 to verify.
  
  Reported-by: Jason Lee
  Closes #4166

- progress: reset download/uploaded counter
  
  ... to make CURLOPT_MAX_RECV_SPEED_LARGE and
  CURLOPT_MAX_SEND_SPEED_LARGE work correctly on subsequent transfers that
  reuse the same handle.
  
  Fixed-by: Ironbars13 on github
  Fixes #4084
  Closes #4161

- http2_recv: trigger another read when the last data is returned
  
  ... so that end-of-stream is detected properly.
  
  Reported-by: Tom van der Woerdt
  Fixes #4043
  Closes #4160

- curl: avoid uncessary libcurl timeouts (in parallel mode)
  
  When curl_multi_wait() returns OK without file descriptors to wait for,
  it might already have done a long timeout.
  
  Closes #4159

- [Balazs Kovacsics brought this change]

  HTTP: use chunked Transfer-Encoding for HTTP_POST if size unknown
  
  If using the read callback for HTTP_POST, and POSTFIELDSIZE is not set,
  automatically add a Transfer-Encoding: chunked header, same as it is
  already done for HTTP_PUT, HTTP_POST_FORM and HTTP_POST_MIME.  Update
  test 1514 according to the new behaviour.
  
  Closes #4138

Jay Satiro (29 Jul 2019)
- [Daniel Stenberg brought this change]

  winbuild: add vquic to list of build directories
  
  This fixes the winbuild build method which broke several days ago
  when experimental quic support was added in 3af0e76.
  
  Reported-by: Michael Lee
  
  Fixes https://github.com/curl/curl/issues/4158

- easy: resize receive buffer on easy handle reset
  
  - In curl_easy_reset attempt to resize the receive buffer to its default
    size. If realloc fails then continue using the previous size.
  
  Prior to this change curl_easy_reset did not properly handle resetting
  the receive buffer (data->state.buffer). It reset the variable holding
  its size (data->set.buffer_size) to the default size (READBUFFER_SIZE)
  but then did not actually resize the buffer. If a user resized the
  buffer by using CURLOPT_BUFFERSIZE to set the size smaller than the
  default, later called curl_easy_reset and attempted to reuse the handle
  then a heap overflow would very likely occur during that handle's next
  transfer.
  
  Reported-by: Felix Hädicke
  
  Fixes https://github.com/curl/curl/issues/4143
  Closes https://github.com/curl/curl/pull/4145

- [Brad Spencer brought this change]

  examples: Avoid reserved names in hiperfifo examples
  
  - Trade in __attribute__((unused)) for the classic (void)x to silence
    unused symbols.
  
  Because the classic way is not gcc specific. Also because the prior
  method mapped to symbol _Unused, which starts with _ and a capital
  letter which is reserved.
  
  Assisted-by: The Infinnovation team
  
  Bug: https://github.com/curl/curl/issues/4120#issuecomment-512542108
  
  Closes https://github.com/curl/curl/pull/4153

Daniel Stenberg (25 Jul 2019)
- RELEASE-NOTES: synced

- [Felix Hädicke brought this change]

  ssh-libssh: do not specify O_APPEND when not in append mode
  
  Specifying O_APPEND in conjunction with O_TRUNC and O_CREAT does not
  make much sense. And this combination of flags is not accepted by all
  SFTP servers (at least not Apache SSHD).
  
  Fixes #4147
  Closes #4148

- [Gergely Nagy brought this change]

  multi: call detach_connection before Curl_disconnect
  
  Curl_disconnect bails out if conn->easyq is not empty, detach_connection
  needs to be called first to remove the current easy from the queue.
  
  Fixes #4144
  Closes #4151

Jay Satiro (23 Jul 2019)
- tool_operate: fix implicit call to easysrc_cleanup
  
  easysrc_cleanup is only defined when CURL_DISABLE_LIBCURL_OPTION is not
  defined, and prior to this change would be called regardless.
  
  Bug: https://github.com/curl/curl/pull/3804#issuecomment-513922637
  Reported-by: Marcel Raad
  
  Closes https://github.com/curl/curl/pull/4142

Daniel Stenberg (22 Jul 2019)
- curl:create_transfers check return code from curl_easy_setopt
  
  From commit b8894085
  
  Pointed out by Coverity CID 1451703
  
  Closes #4134

- HTTP3: initial (experimental) support
  
  USe configure --with-ngtcp2 or --with-quiche
  
  Using either option will enable a HTTP3 build.
  Co-authored-by: Alessandro Ghedini <alessandro@ghedini.me>
  
  Closes #3500

- curl: remove dead code
  
  The loop never loops (since b889408500), pointed out by Coverity (CID
  1451702)
  
  Closes #4133

- docs/PARALLEL-TRANSFERS: correct the version number

- docs/PARALLEL-TRANSFERS: added

- curl: support parallel transfers
  
  This is done by making sure each individual transfer is first added to a
  linked list as then they can be performed serially, or at will, in
  parallel.
  
  Closes #3804

- docs/MANUAL.md: converted to markdown from plain text
  
  ... will make it render as a nicer web page.
  
  Closes #4131

- curl_version_info: provide nghttp2 details
  
  Introducing CURLVERSION_SIXTH with nghttp2 info.
  
  Closes #4121

- bump: start working on 7.66.0

- source: remove names from source comments
  
  Several reasons:
  
  - we can't add everyone who's helping out so its unfair to just a few
  selected ones.
  - we already list all helpers in THANKS and in RELEASE-NOTES for each
  release
  - we don't want to give the impression that some parts of the code is
  "owned" or "controlled" by specific persons
  
  Assisted-by: Daniel Gustafsson
  Closes #4129

Version 7.65.3 (19 Jul 2019)

Daniel Stenberg (19 Jul 2019)
- RELEASE-NOTES: 7.65.3

- THANKS: 7.65.3 status

- progress: make the progress meter appear again
  
  Fix regression caused by 21080e1
  
  Reported-by: Chih-Hsuan Yen
  Fixes #4122
  Closes #4124

- version: bump to 7.65.3

- RELEASE-NOTES: Contributors or now 1990

Version 7.65.2 (17 Jul 2019)

Daniel Stenberg (17 Jul 2019)
- RELEASE-NOTES: 7.65.2

- THANKS: add contributors from 7.65.2

Jay Satiro (17 Jul 2019)
- [aasivov brought this change]

  cmake: Fix finding Brotli on case-sensitive file systems
  
  - Find package "Brotli" instead of "BROTLI" since the former is the
    casing used for CMake/FindBrotli.cmake, and otherwise find_package
    may fail on a case-sensitive file system.
  
  Fixes https://github.com/curl/curl/issues/4117

- CURLOPT_RANGE.3: Caution against using it for HTTP PUT
  
  AFAICT CURLOPT_RANGE does not support ranged HTTP PUT uploads so I've
  cautioned against using it for that purpose and included a workaround.
  
  Bug: https://curl.haxx.se/mail/lib-2019-04/0075.html
  Reported-by: Christopher Head
  
  Closes https://github.com/curl/curl/issues/3814

- [Stefano Simonelli brought this change]

  CURLOPT_SEEKDATA.3: fix variable name
  
  Closes https://github.com/curl/curl/pull/4118

- [Giorgos Oikonomou brought this change]

  CIPHERS.md: Explain Schannel error SEC_E_ALGORITHM_MISMATCH
  
  If the SSL backend is Schannel and the user specifies an Schannel CALG_
  that is not supported by the protocol or the server then curl returns
  CURLE_SSL_CONNECT_ERROR (35) SEC_E_ALGORITHM_MISMATCH.
  
  Fixes https://github.com/curl/curl/issues/3389
  Closes https://github.com/curl/curl/pull/4106

- [Daniel Gustafsson brought this change]

  nss: inspect returnvalue of token check
  
  PK11_IsPresent() checks for the token for the given slot is available,
  and sets needlogin flags for the PK11_Authenticate() call.  Should it
  return false, we should however treat it as an error and bail out.
  
  Closes https://github.com/curl/curl/pull/4110

- docs: Explain behavior change in --tlsv1. options since 7.54
  
  Since 7.54 --tlsv1. options use the specified version or later, however
  older versions of curl documented it as using just the specified version
  which may or may not have happened depending on the TLS library.
  Document this discrepancy to allay confusion for users familiar with the
  old documentation that expect just the specified version.
  
  Fixes https://github.com/curl/curl/issues/4097
  Closes https://github.com/curl/curl/pull/4119

- libcurl: Restrict redirect schemes (follow-up)
  
  - Allow FTPS on redirect.
  
  - Update default allowed redirect protocols in documentation.
  
  Follow-up to 6080ea0.
  
  Ref: https://github.com/curl/curl/pull/4094
  
  Closes https://github.com/curl/curl/pull/4115

Daniel Stenberg (16 Jul 2019)
- test1173: make it also check all libcurl option man pages
  
  ... and adjust those that cause errors
  
  Closes #4116

- curl: only accept COLUMNS less than 10000
  
  ... as larger values would rather indicate something silly (and could
  potentially cause buffer problems).
  
  Reported-by: pendrek at hackerone
  Closes #4114

- dist: add manpage-syntax.pl
  
  follow-up to 7fb66c403

- test1173: detect some basic man page format mistakes
  
  Triggered by PR #4111
  
  Closes #4113

Jay Satiro (15 Jul 2019)
- [Bjarni Ingi Gislason brought this change]

  docs: Fix missing lines caused by undefined macros
  
  - Escape apostrophes at line start.
  
  Some lines begin with a "'" (apostrophe, single quote), which is then
  interpreted as a control character in *roff.
  
  Such lines are interpreted as being a call to a macro, and if
  undefined, the lines are removed from the output.
  
  Bug: https://bugs.debian.org/926352
  Signed-off-by: Bjarni Ingi Gislason <bjarniig@rhi.hi.is>
  
  Submitted-by: Alessandro Ghedini
  
  Closes https://github.com/curl/curl/pull/4111

Daniel Stenberg (14 Jul 2019)
- libcurl-security.3: update to new CURLOPT_REDIR_PROTOCOLS defaults
  
  follow-up to 6080ea098

- [Linos Giannopoulos brought this change]

  libcurl: Add testcase for gopher redirects
  
  The testcase ensures that redirects to CURLPROTO_GOPHER won't be
  allowed, by default, in the future. Also, curl is being used
  for convenience while keeping the testcases DRY.
  
  The expected error code is CURLE_UNSUPPORTED_PROTOCOL when the client is
  redirected to CURLPROTO_GOPHER
  
  Signed-off-by: Linos Giannopoulos <lgian@skroutz.gr>

- [Linos Giannopoulos brought this change]

  libcurl: Restrict redirect schemes
  
  All protocols except for CURLPROTO_FILE/CURLPROTO_SMB and their TLS
  counterpart were allowed for redirect. This vastly broadens the
  exploitation surface in case of a vulnerability such as SSRF [1], where
  libcurl-based clients are forced to make requests to arbitrary hosts.
  
  For instance, CURLPROTO_GOPHER can be used to smuggle any TCP-based
  protocol by URL-encoding a payload in the URI. Gopher will open a TCP
  connection and send the payload.
  
  Only HTTP/HTTPS and FTP are allowed. All other protocols have to be
  explicitly enabled for redirects through CURLOPT_REDIR_PROTOCOLS.
  
  [1]: https://www.acunetix.com/blog/articles/server-side-request-forgery-vulnerability/
  
  Signed-off-by: Linos Giannopoulos <lgian@skroutz.gr>
  
  Closes #4094

- [Zenju brought this change]

  openssl: define HAVE_SSL_GET_SHUTDOWN based on version number
  
  Closes #4100

- [Peter Simonyi brought this change]

  http: allow overriding timecond with custom header
  
  With CURLOPT_TIMECONDITION set, a header is automatically added (e.g.
  If-Modified-Since).  Allow this to be replaced or suppressed with
  CURLOPT_HTTPHEADER.
  
  Fixes #4103
  Closes #4109

Jay Satiro (11 Jul 2019)
- [Juergen Hoetzel brought this change]

  smb: Use the correct error code for access denied on file open
  
  - Return CURLE_REMOTE_ACCESS_DENIED for SMB access denied on file open.
  
  Prior to this change CURLE_REMOTE_FILE_NOT_FOUND was returned instead.
  
  Closes https://github.com/curl/curl/pull/4095

- [Daniel Gustafsson brought this change]

  DEPRECATE: fixup versions and spelling
  
  Correctly set the July 17 version to 7.65.2, and update spelling to
  be consistent. Also fix a typo.
  
  Closes https://github.com/curl/curl/pull/4107

- [Gisle Vanem brought this change]

  system_win32: fix clang warning
  
  - Declare variable in header as extern.
  
  Bug: https://github.com/curl/curl/commit/48b9ea4#commitcomment-34084597

Daniel Gustafsson (10 Jul 2019)
- headers: Remove no longer exported functions
  
  There were a leftover few prototypes of Curl_ functions that we used to
  export but no longer do, this removes those prototypes and cleans up any
  comments still referring to them.
  
  Curl_write32_le(), Curl_strcpy_url(), Curl_strlen_url(), Curl_up_free()
  Curl_concat_url(), Curl_detach_connnection(), Curl_http_setup_conn()
  were made static in 05b100aee247bb9bec8e9a1b0166496aa4248d1c.
  Curl_http_perhapsrewind() made static in 574aecee208f79d391f10d57520b3.
  
  For the remainder, I didn't trawl the Git logs hard enough to capture
  their exact time of deletion, but they were all gone: Curl_splayprint(),
  Curl_http2_send_request(), Curl_global_host_cache_dtor(),
  Curl_scan_cache_used(), Curl_hostcache_destroy(), Curl_second_connect(),
  Curl_http_auth_stage() and Curl_close_connections().
  
  Closes #4096
  Reviewed-by: Daniel Stenberg <daniel@haxx.se>

- CMake: fix typos and spelling

- [Kyle Edwards brought this change]

  CMake: Convert errant elseif() to else()
  
  CMake interprets an elseif() with no arguments as elseif(FALSE),
  resulting in the elseif() block not being executed. That is not what
  was intended here. Change the empty elseif() to an else() as it was
  intended.
  
  Closes #4101
  Reported-by: Artalus <artalus-mail@yandex.ru>
  Reviewed-by: Daniel Gustafsson <daniel@yesql.se>

- buildconf: fix header filename
  
  The header file inclusion had a typo, it should be .h and not .hd.
  Fix by renaming.
  
  Fixes #4102
  Reported-by: AceCrow on Github

- [Jan Chren brought this change]

  configure: fix --disable-code-coverage
  
  This fixes the case when --disable-code-coverage supplied to ./configure
  would result in coverage="yes" being set.
  
  Closes #4099
  Reviewed-by: Daniel Gustafsson <daniel@yesql.se>

- cleanup: fix typo in comment

- RELEASE-NOTES: synced

Jay Satiro (6 Jul 2019)
- [Daniel Gustafsson brought this change]

  nss: support using libnss on macOS
  
  The file suffix for dynamically loadable objects on macOS is .dylib,
  which need to be added for the module definitions in order to get the
  NSS TLS backend to work properly on macOS.
  
  Closes https://github.com/curl/curl/pull/4046

- [Daniel Gustafsson brought this change]

  nss: don't set unused parameter
  
  The value of the maxPTDs parameter to PR_Init() has since at least
  NSPR 2.1, which was released sometime in 1998, been marked ignored
  as is accordingly not used in the initialization code.  Setting it
  to a value when calling PR_Init() is thus benign, but indicates an
  intent which may be misleading. Reset the value to zero to improve
  clarity.
  
  Closes https://github.com/curl/curl/pull/4054

- [Daniel Gustafsson brought this change]

  nss: only cache valid CRL entries
  
  Change the logic around such that we only keep CRLs that NSS actually
  ended up caching around for later deletion.  If CERT_CacheCRL() fails
  then there is little point in delaying the freeing of the CRL as it
  is not used.
  
  Closes https://github.com/curl/curl/pull/4053

- [Gergely Nagy brought this change]

  lib: Use UTF-8 encoding in comments
  
  Some editors and IDEs assume that source files use UTF-8 file encodings.
  It also fixes the build with MSVC when /utf-8 command line option is
  used (this option is mandatory for some other open-source projects, this
  is useful when using the same options is desired for building all
  libraries of a project).
  
  Closes https://github.com/curl/curl/pull/4087

- [Caleb Raitto brought this change]

  CURLOPT_HEADEROPT.3: Fix example
  
  Fix an issue where example builds a curl_slist, but fails to actually
  use it, or free it.
  
  Closes https://github.com/curl/curl/pull/4090

- [Shankar Jadhavar brought this change]

  winbuild: Change Makefile to honor ENABLE_OPENSSL_AUTO_LOAD_CONFIG
  
  - Made changes so that ENABLE_OPENSSL_AUTO_LOAD_CONFIG will be honored.
  
  - Also removed some ^M chars from file.
  
  Prior to this change while building on Windows platform even if we pass
  the ENABLE_OPENSSL_AUTO_LOAD_CONFIG option with value as "no" it does
  not set the CURL_DISABLE_OPENSSL_AUTO_LOAD_CONFIG flag.
  
  Closes https://github.com/curl/curl/pull/4086

Daniel Stenberg (4 Jul 2019)
- doh-url.d: added in 7.62.0

Jay Satiro (30 Jun 2019)
- docs: Fix links to OpenSSL docs
  
  OpenSSL changed their manual locations and does not redirect to the new
  locations.
  
  Bug: https://curl.haxx.se/mail/lib-2019-06/0056.html
  Reported-by: Daniel Stenberg

Daniel Stenberg (26 Jun 2019)
- [Gaël PORTAY brought this change]

  curl_multi_wait.3: escape backslash in example
  
  The backslash in the character Line Feed must be escaped.
  
  The current man-page outputs the code as following:
  
          fprintf(stderr, "curl_multi failed, code %d.0, mc);
  
  The commit fixes it as follow:
  
          fprintf(stderr, "curl_multi failed, code %d\n", mc);
  
  Closes #4079

- openssl: disable engine if OPENSSL_NO_UI_CONSOLE is defined
  
  ... since that needs UI_OpenSSL() which isn't provided when OpenSSL is
  built with OPENSSL_NO_UI_CONSOLE which happens when OpenSSL is built for
  UWP (with "VC-WIN32-UWP").
  
  Reported-by: Vasily Lobaskin
  Fixes #4073
  Closes #4077

- test1521: adapt to SLISTPOINT
  
  The header now has the slist-using options marked as SLISTPOINT so this
  makes sure test 1521 understands that.
  
  Follow-up to ae99b4de1c443ae989
  
  Closes #4074

- win32: make DLL loading a no-op for UWP
  
  Reported-by: Michael Brehm
  Fixes #4060
  Closes #4072

- [1ocalhost brought this change]

  configure: fix typo '--disable-http-uath'
  
  Closes #4076

- [Niklas Hambüchen brought this change]

  docs: fix string suggesting HTTP/2 is not the default
  
  Commit 25fd1057c9c86e3 made HTTP2 the default, and further down in the
  man page that new default is mentioned, but the section at the top
  contradicted it until now.
  
  Also remove claim that setting the HTTP version is not sensible.
  
  Closes #4075

- RELEASE-NOTES: synced

- [Stephan Szabo brought this change]

  tests: update fixed IP for hostip/clientip split
  
  These tests give differences for me on linux when using a hostip
  pointing to the external ip address for the local machine.
  
  Closes #4070

Daniel Gustafsson (24 Jun 2019)
- http: clarify header buffer size calculation
  
  The header buffer size calculation can from static analysis seem to
  overlow as it performs an addition between two size_t variables and
  stores the result in a size_t variable. Overflow is however guarded
  against elsewhere since the input to the addition is regulated by
  the maximum read buffer size. Clarify this with a comment since the
  question was asked.
  
  Reviewed-by: Daniel Stenberg <daniel@haxx.se>

Daniel Stenberg (24 Jun 2019)
- KNOWN_BUGS: Don't clear digest for single realm
  
  Closes #3267

- KNOWN_BUGS: Schannel disable CURLOPT_SSL_VERIFYPEER and verify hostname
  
  Closes #3284

- http2: call done_sending on end of upload
  
  To make sure a HTTP/2 stream registers the end of stream.
  
  Bug #4043 made me find this problem but this fix doesn't correct the
  reported issue.
  
  Closes #4068

- [James Brown brought this change]

  c-ares: honor port numbers in CURLOPT_DNS_SERVERS
  
  By using ares_set_servers_ports_csv on new enough c-ares.
  
  Fixes #4066
  Closes #4067

Daniel Gustafsson (24 Jun 2019)
- CURLMOPT_SOCKETFUNCTION.3: fix typo

Daniel Stenberg (24 Jun 2019)
- [Koen Dergent brought this change]

  curl: skip CURLOPT_PROXY_CAPATH for disabled-proxy builds
  
  Closes #4061

- test153: fix content-length to avoid occasional hang
  
  Closes #4065

- RELEASE-NOTES: synced

- multi: enable multiplexing by default (again)
  
  It was originally made default in d7c4213bd0c (7.62.0) but mistakenly
  reverted in commit 2f44e94efb3d (7.65.0). Now enabled again.
  
  Closes #4051

- typecheck: add 3 missing strings and a callback data pointer
  
  Closes #4050

- tests: add disable-scan.pl to dist
  
  follow-up from 29177f422a5
  
  Closes #4059

- http2: don't call stream-close on already closed streams
  
  Closes #4055

Marcel Raad (20 Jun 2019)
- travis: enable alt-svc for coverage build
  
  Closes

- travis: enable libssh2 for coverage build
  
  It was enabled by default before commit c92d2e14cfb.
  
  Disable torture tests 600 and 601 because of
  https://github.com/curl/curl/issues/1678.
  
  Closes

- travis: disable threaded resolver for coverage build
  
  This enables more tests.
  
  Closes

- travis: enable brotli for all xenial jobs
  
  There's no need for a separate job, and no need to build it from source
  with Xenial.
  
  Closes

- travis: enable warnings-as-errors for coverage build
  
  Closes

GitHub (20 Jun 2019)
- [Gisle Vanem brought this change]

  system_win32: fix typo

Daniel Stenberg (20 Jun 2019)
- typecheck: CURLOPT_CONNECT_TO takes an slist too
  
  Additionally, add an alias in curl.h for slist-using options so that
  we can grep/parse those out at will.
  
  Closes #4042

- [Stephan Szabo brought this change]

  tests: support non-localhost HOSTIP for dict/smb servers
  
  smbserver.py/dictserver.py were explicitly using localhost/127.0.0.1 for
  binding the server which when we were running the tests with a separate
  HOSTIP and CLIENTIP had failures verifying the server from the device we
  were testing.
  
  This changes them to take the address from runtests.py and default to
  localhost/127.0.0.1 if none is given.
  
  Closes #4048

- test1523: basic test of CURLOPT_LOW_SPEED_LIMIT

- configure: --disable-progress-meter
  
  Builds libcurl without support for the built-in progress meter.
  
  Closes #4023

- curl: improved skip-setopt-options when built with disabled features
  
  Reduces #ifdefs in src/tool_operate.c
  
  Follow-up from 4e86f2fc4e6
  Closes #3936

Steve Holme (18 Jun 2019)
- netrc: Return the correct error code when out of memory
  
  Introduced in 763c5178.
  
  Closes #4036

Daniel Stenberg (18 Jun 2019)
- config-os400: add getpeername and getsockname defines
  
  Reported-by: jonrumsey on github
  Fixes #4037
  Closes #4039

- runtests: keep logfiles around by default
  
  Make '-k' a no-op. The singletest function now clears the log directory
  BEFORE each individual test and not after, which makes it possible to
  always keep the logfiles around after a test has been run. No need to
  specify -k anymore. Keeping the option parsing around to work with users
  of old habits.
  
  Some tests also didn't work properly when -k was used (since the old
  logs would be kep when a new test starts) which this change also fixes.
  
  Closes #4035

- [Gergely Nagy brought this change]

  openssl: fix pubkey/signature algorithm detection in certinfo
  
  Certinfo gives the same result for all OpenSSL versions.
  Also made printing RSA pubkeys consistent with older versions.
  
  Reported-by: Michael Wallner
  Fixes #3706
  Closes #4030

- conn_maxage: move the check to prune_dead_connections()
  
  ... and avoid the locking issue.
  
  Reported-by: Kunal Ekawde
  Fixes #4029
  Closes #4032

- tests: have runtests figure out disabled features
  
  ... so that runtests can skip individual test cases that test features
  that are explicitly disabled in this build. This new logic is intended
  for disabled features that aren't otherwise easily visible through the
  curl_version_info() or other API calls.
  
  tests/server/disabled is a newly built executable that will output a
  list of disabled features. Outputs nothing for a default build.
  
  Closes #3950

- test188/189: fix Content-Length
  
  This cures the flaky test results
  
  Closes #4034

- [Thomas Gamper brought this change]

  winbuild: use WITH_PREFIX if given
  
  Closes #4031

Daniel Gustafsson (17 Jun 2019)
- openssl: remove outdated comment
  
  OpenSSL used to call exit(1) on syntax errors in OPENSSL_config(),
  which is why we switched to CONF_modules_load_file() and introduced
  a comment stating why. This behavior was however changed in OpenSSL
  commit abdd677125f3a9e3082f8c5692203590fdb9b860, so remove the now
  outdated and incorrect comment. The mentioned commit also declares
  OPENSSL_config() deprecated so keep the current coding.
  
  Closes #4033
  Reviewed-by: Daniel Stenberg <daniel@haxx.se>

Daniel Stenberg (16 Jun 2019)
- RELEASE-NOTES: synced

Patrick Monnerat (16 Jun 2019)
- os400: make vsetopt() non-static as Curl_vsetopt() for os400 support.
  
  Use it in curl_easy_setopt_ccsid().
  
  Reported-by: jonrumsey on github
  Fixes #3833
  Closes #4028

Daniel Stenberg (15 Jun 2019)
- runtests: report single test time + total duration
  
  ... after each successful test.
  
  Closes #4027

- multi: fix the transfer hash function
  
  Follow-up from 8b987cc7eb
  
  Reported-by: Tom van der Woerdt
  Fixes #4018
  Closes #4024

- unit1654: cleanup on memory failure
  
  ... to make it handle torture tests properly.
  
  Reported-by: Marcel Raad
  Fixes #4021
  Closes #4022

Marcel Raad (13 Jun 2019)
- krb5: fix compiler warning
  
  Even though the variable was used in a DEBUGASSERT, GCC 8 warned in
  debug mode:
  krb5.c:324:17: error: unused variable 'maj' [-Werror=unused-variable]
  
  Just suppress the warning and declare the variable unconditionally
  instead of only for DEBUGBUILD (which also missed the check for
  HAVE_ASSERT_H).
  
  Closes https://github.com/curl/curl/pull/4020

Daniel Stenberg (13 Jun 2019)
- quote.d: asterisk prefix works for SFTP as well
  
  Reported-by: Ben Voris
  Fixes #4017
  Closes #4019

- multi: fix the transfer hashes in the socket hash entries
  
  - The transfer hashes weren't using the correct keys so removing entries
    failed.
  
  - Simplified the iteration logic over transfers sharing the same socket and
    they now simply are set to expire and thus get handled in the "regular"
    timer loop instead.
  
  Reported-by: Tom van der Woerdt
  Fixes #4012
  Closes #4014

Jay Satiro (12 Jun 2019)
- [Cliff Crosland brought this change]

  url: Fix CURLOPT_MAXAGE_CONN time comparison
  
  Old connections are meant to expire from the connection cache after
  CURLOPT_MAXAGE_CONN seconds. However, they actually expire after 1000x
  that value. This occurs because a time value measured in milliseconds is
  accidentally divided by 1M instead of by 1,000.
  
  Closes https://github.com/curl/curl/pull/4013

Daniel Stenberg (11 Jun 2019)
- test1165: verify that CURL_DISABLE_ symbols are in sync
  
  between configure.ac and source code. They should be possible to switch
  on/off in configure AND be used in source code.

- configure: remove CURL_DISABLE_TLS_SRP
  
  It isn't used by code so stop providing the define.
  
  Closes #4010

- Revert "cmake: add SMB to list of disabled protocols if HTTP_ONLY is specified"
  
  This reverts commit 36738caeb78603ce24e3ea089a167b8c216fb938.
  
  Apparently several of the appveyor windows builds broke.

- [sergey-raevskiy brought this change]

  cmake: add SMB to list of disabled protocols if HTTP_ONLY is specified
  
  Reviewed-by: Jakub Zakrzewski
  Closes #3770

- RELEASE-NOTES: synced

- http2: remove CURL_DISABLE_TYPECHECK define
  
  ... in http2-less builds as it served no use.

- configure: more --disable switches to toggle off individual features
  
  ... actual support in the code for disabling these has already landed.
  
  Closes #4009

- wolfssl: fix key pinning build error
  
  follow-up from deb9462ff2de8

- CURLMOPT_SOCKETFUNCTION.3: clarified
  
  Moved away the callback explanation from curl_multi_socket_action.3 and
  expanded it somewhat.
  
  Closes #4006

- wolfssl: fixup for SNI use
  
  follow-up from deb9462ff2de8
  
  Closes #4007

- CURLOPT_CAINFO.3: polished wording
  
  Clarify the functionality when built to use Schannel and Secure
  Transport and stop calling it the "recommended" or "preferred" way and
  instead rather call it the default.
  
  Removed the reference to the ssl comparison table as it isn't necessary.
  
  Reported-by: Richard Alcock
  Bug: https://curl.haxx.se/mail/lib-2019-06/0019.html
  Closes #4005

GitHub (10 Jun 2019)
- [Daniel Stenberg brought this change]

  SECURITY.md: created
  
  Brief security policy description for use/display on github.

Daniel Gustafsson (10 Jun 2019)
- tool_cb_prg: Fix integer overflow in progress bar
  
  Commit 61faa0b420c236480bc9ef6fd52b4ecc1e0f8d17 fixed the progress bar
  width calculation to avoid integer overflow, but failed to account for
  the fact that initial_size is initialized to -1 when the file size is
  retrieved from the remote on an upload, causing another signed integer
  overflow.  Fix by separately checking for this case before the width
  calculation.
  
  Closes #3984
  Reported-by: Brian Carpenter (Geeknik Labs)
  Reviewed-by: Daniel Stenberg <daniel@haxx.se>

Daniel Stenberg (10 Jun 2019)
- wolfssl: refer to it as wolfSSL only
  
  Remove support for, references to and use of "cyaSSL" from the source
  and docs. wolfSSL is the current name and there's no point in keeping
  references to ancient history.
  
  Assisted-by: Daniel Gustafsson
  
  Closes #3903

- RELEASE-NOTES: synced

- bindlocal: detect and avoid IP version mismatches in bind()
  
  Reported-by: Alex Grebenschikov
  Fixes #3993
  Closes #4002

- multi: make sure 'data' can present in several sockhash entries
  
  Since more than one socket can be used by each transfer at a given time,
  each sockhash entry how has its own hash table with transfers using that
  socket.
  
  In addition, the sockhash entry can now be marked 'blocked = TRUE'"
  which then makes the delete function just set 'removed = TRUE' instead
  of removing it "for real", as a way to not rip out the carpet under the
  feet of a parent function that iterates over the transfers of that same
  sockhash entry.
  
  Reported-by: Tom van der Woerdt
  Fixes #3961
  Fixes #3986
  Fixes #3995
  Fixes #4004
  Closes #3997

- [Sorcus brought this change]

  libcurl-tutorial.3: Fix small typo (mutipart -> multipart)
  
  Fixed-by: MrSorcus on github
  Closes #4000

- unpause: trigger a timeout for event-based transfers
  
  ... so that timeouts or other state machine actions get going again
  after a changing pause state. For example, if the last delivery was
  paused there's no pending socket activity.
  
  Reported-by: sstruchtrup on github
  Fixes #3994
  Closes #4001

Marcel Raad (9 Jun 2019)
- travis: use xenial LLVM package for scan-build
  
  I missed that in commit 99a49d6.

- travis: update scan-build job to xenial
  
  Closes https://github.com/curl/curl/pull/3999

Daniel Stenberg (8 Jun 2019)
- bump: start working on 7.65.2

Marcel Raad (5 Jun 2019)
- examples/htmltitle: use C++ casts between pointer types
  
  Compilers and static analyzers warn about using C-style casts here.
  
  Closes https://github.com/curl/curl/pull/3975

- examples/fopen: fix comparison
  
  As want is size_t, (file->buffer_pos - want) is unsigned, so checking
  if it's less than zero makes no sense.
  Check if file->buffer_pos is less than want instead to avoid the
  unsigned integer wraparound.
  
  Closes https://github.com/curl/curl/pull/3975

- build: fix Codacy warnings
  
  Reduce variable scopes and remove redundant variable stores.
  
  Closes https://github.com/curl/curl/pull/3975

- sws: remove unused variables
  
  Unused since commit 2f44e94.
  
  Closes https://github.com/curl/curl/pull/3975

Version 7.65.1 (4 Jun 2019)

Daniel Stenberg (4 Jun 2019)
- RELEASE-NOTES: 7.65.1

- THANKS: new contributors from 7.65.1

Steve Holme (4 Jun 2019)
- [Frank Gevaerts brought this change]

  ssl: Update outdated "openssl-only" comments for supported backends
  
  These are for features that used to be openssl-only but were expanded
  over time to support other SSL backends.
  
  Closes #3985

Daniel Stenberg (4 Jun 2019)
- curl_share_setopt.3: improve wording [ci ship]
  
  Reported-by: Carlos ORyan

Steve Holme (4 Jun 2019)
- tool_parsecfg: Use correct return type for GetModuleFileName()
  
  GetModuleFileName() returns a DWORD which is a typedef of an unsigned
  long and not an int.
  
  Closes #3980

Daniel Stenberg (3 Jun 2019)
- TODO: "at least N milliseconds between requests" [ci skip]
  
  Suggested-by: dkwolfe4 on github
  Closes #3920

Steve Holme (2 Jun 2019)
- tests/server/.gitignore: Add socksd to the ignore list
  
  Missed in 04fd6755.
  
  Closes #3978

- tool_parsecfg: Fix control flow issue (DEADCODE)
  
  Follow-up to 8144ba38.
  
  Detected by Coverity CID 1445663
  Closes #3976

Daniel Stenberg (2 Jun 2019)
- [Sergey Ogryzkov brought this change]

  NTLM: reset proxy "multipass" state when CONNECT request is done
  
  Closes #3972

- test334: verify HTTP 204 response with chunked coding header
  
  Verifies that a bodyless response don't parse this content-related
  header.

- [Michael Kaufmann brought this change]

  http: don't parse body-related headers bodyless responses
  
  Responses with status codes 1xx, 204 or 304 don't have a response body. For
  these, don't parse these headers:
  
  - Content-Encoding
  - Content-Length
  - Content-Range
  - Last-Modified
  - Transfer-Encoding
  
  This change ensures that HTTP/2 upgrades work even if a
  "Content-Length: 0" or a "Transfer-Encoding: chunked" header is present.
  
  Co-authored-by: Daniel Stenberg
  Closes #3702
  Fixes #3968
  Closes #3977

- tls13-docs: mention it is only for OpenSSL >= 1.1.1
  
  Reported-by: Jay Satiro
  Co-authored-by: Jay Satiro
  Fixes #3938
  Closes #3946

- dump-header.d: spell out that no headers == empty file [ci skip]
  
  Reported-by: wesinator at github
  Fixes #3964
  Closes #3974

- singlesocket: use separate variable for inner loop
  
  An inner loop within the singlesocket() function wrongly re-used the
  variable for the outer loop which then could cause an infinite
  loop. Change to using a separate variable!
  
  Reported-by: Eric Wu
  Fixes #3970
  Closes #3973

- RELEASE-NOTES: synced

- [Josie Huddleston brought this change]

  http2: Stop drain from being permanently set on
  
  Various functions called within Curl_http2_done() can have the
  side-effect of setting the Easy connection into drain mode (by calling
  drain_this()).  However, the last time we unset this for a transfer (by
  calling drained_transfer()) is at the beginning of Curl_http2_done().
  If the Curl_easy is reused for another transfer, it is then stuck in
  drain mode permanently, which in practice makes it unable to write any
  data in the new transfer.
  
  This fix moves the last call to drained_transfer() to later in
  Curl_http2_done(), after the functions that could potentially call for a
  drain.
  
  Fixes #3966
  Closes #3967
  Reported-by: Josie-H

Steve Holme (29 May 2019)
- conncache: Remove the DEBUGASSERT on length check
  
  We trust the calling code as this is an internal function.
  
  Closes #3962

Jay Satiro (29 May 2019)
- [Gisle Vanem brought this change]

  system_win32: fix function prototype
  
  - Change if_nametoindex parameter type from char * to const char *.
  
  Follow-up to 09eef8af from this morning.
  
  Bug: https://github.com/curl/curl/commit/09eef8af#r33716067

Marcel Raad (29 May 2019)
- appveyor: add Visual Studio solution build
  
  Closes https://github.com/curl/curl/pull/3941

- appveyor: add support for other build systems
  
  Introduce BUILD_SYSTEM variable, which is currently always CMake.
  
  Closes https://github.com/curl/curl/pull/3941

Steve Holme (29 May 2019)
- url: Load if_nametoindex() dynamically from iphlpapi.dll on Windows
  
  This fixes the static dependency on iphlpapi.lib and allows curl to
  build for targets prior to Windows Vista.
  
  This partially reverts 170bd047.
  
  Fixes #3960
  Closes #3958

Daniel Stenberg (29 May 2019)
- http: fix "error: equality comparison with extraneous parentheses"

- parse_proxy: make sure portptr is initialized
  
  Reported-by: Benbuck Nason
  
  fixes #3959

- url: default conn->port to the same as conn->remote_port
  
  ... so that it has a sensible value when ConnectionExists() is called which
  needs it set to differentiate host "bundles" correctly on port number!
  
  Also, make conncache:hashkey() use correct port for bundles that are proxy vs
  host connections.
  
  Probably a regression from 7.62.0
  
  Reported-by: Tom van der Woerdt
  Fixes #3956
  Closes #3957

- conncache: make "bundles" per host name when doing proxy tunnels
  
  Only HTTP proxy use where multiple host names can be used over the same
  connection should use the proxy host name for bundles.
  
  Reported-by: Tom van der Woerdt
  Fixes #3951
  Closes #3955

- multi: track users of a socket better
  
  They need to be removed from the socket hash linked list with more care.
  
  When sh_delentry() is called to remove a sockethash entry, remove all
  individual transfers from the list first. To enable this, each Curl_easy struct
  now stores a pointer to the sockethash entry to know how to remove itself.
  
  Reported-by: Tom van der Woerdt and Kunal Ekawde
  
  Fixes #3952
  Fixes #3904
  Closes #3953

Steve Holme (28 May 2019)
- curl-win32.h: Enable Unix Domain Sockets based on the Windows SDK version
  
  Microsoft added support for Unix Domain Sockets in Windows 10 1803
  (RS4). Rather than expect the user to enable Unix Domain Sockets by
  uncommenting the #define that was added in 0fd6221f we use the RS4
  pre-processor variable that is present in newer versions of the
  Windows SDK.
  
  Closes #3939

Daniel Stenberg (28 May 2019)
- [Jonas Vautherin brought this change]

  cmake: support CMAKE_OSX_ARCHITECTURES when detecting SIZEOF variables
  
  Closes #3945

Marcel Raad (27 May 2019)
- HAProxy tests: add keywords
  
  Add the proxy and haproxy keywords in order to be able to exclude or
  run these specific tests.
  
  Closes https://github.com/curl/curl/pull/3949

Daniel Stenberg (27 May 2019)
- [Maksim Stsepanenka brought this change]

  tests: make test 1420 and 1406 work with rtsp-disabled libcurl
  
  Closes #3948

Kamil Dudka (27 May 2019)
- [Hubert Kario brought this change]

  nss: allow to specify TLS 1.3 ciphers if supported by NSS
  
  Closes #3916

Daniel Stenberg (26 May 2019)
- RELEASE-NOTES: synced

- [Jay Satiro brought this change]

  Revert all SASL authzid (new feature) commits
  
  - Revert all commits related to the SASL authzid feature since the next
    release will be a patch release, 7.65.1.
  
  Prior to this change CURLOPT_SASL_AUTHZID  / --sasl-authzid was destined
  for the next release, assuming it would be a feature release 7.66.0.
  However instead the next release will be a patch release, 7.65.1 and
  will not contain any new features.
  
  After the patch release after the reverted commits can be restored by
  using cherry-pick:
  
  git cherry-pick a14d72c a9499ff 8c1cc36 c2a8d52 0edf690
  
  Details for all reverted commits:
  
  Revert "os400: take care of CURLOPT_SASL_AUTHZID in curl_easy_setopt_ccsid()."
  
  This reverts commit 0edf6907ae37e2020722e6f61229d8ec64095b0a.
  
  Revert "tests: Fix the line endings for the SASL alt-auth tests"
  
  This reverts commit c2a8d52a1356a722ff9f4aeb983cd4eaf80ef221.
  
  Revert "examples: Added SASL PLAIN authorisation identity (authzid) examples"
  
  This reverts commit 8c1cc369d0c7163c6dcc91fd38edfea1f509ae75.
  
  Revert "curl: --sasl-authzid added to support CURLOPT_SASL_AUTHZID from the tool"
  
  This reverts commit a9499ff136d89987af885e2d7dff0a066a3e5817.
  
  Revert "sasl: Implement SASL authorisation identity via CURLOPT_SASL_AUTHZID"
  
  This reverts commit a14d72ca2fec5d4eb5a043936e4f7ce08015c177.

- [dbrowndan brought this change]

  FAQ: more minor updates and spelling fixes
  
  Closes #3937

- RELEASE-NOTES: synced

- sectransp: handle errSSLPeerAuthCompleted from SSLRead()
  
  Reported-by: smuellerDD on github
  Fixes #3932
  Closes #3933

GitHub (24 May 2019)
- [Gisle Vanem brought this change]

  Fix typo.

Daniel Stenberg (23 May 2019)
- tool_setopt: for builds with disabled-proxy, skip all proxy setopts()
  
  Reported-by: Marcel Raad
  Fixes #3926
  Closes #3929

Steve Holme (23 May 2019)
- winbuild: Use two space indentation
  
  Closes #3930

GitHub (23 May 2019)
- [Gisle Vanem brought this change]

  tool_parse_cfg: Avoid 2 fopen() for WIN32
  
  Using the memdebug.h mem-leak feature, I noticed 2 calls like:
    FILE tool_parsecfg.c:70 fopen("c:\Users\Gisle\AppData\Roaming\_curlrc","rt")
    FILE tool_parsecfg.c:114 fopen("c:\Users\Gisle\AppData\Roaming\_curlrc","rt")
  
  No need for 'fopen(), 'fclose()' and a 'fopen()' yet again.

Daniel Stenberg (23 May 2019)
- md4: include the mbedtls config.h to get the MD4 info

- md4: build correctly with openssl without MD4
  
  Reported-by: elsamuko at github
  Fixes #3921
  Closes #3922

Patrick Monnerat (23 May 2019)
- os400: take care of CURLOPT_SASL_AUTHZID in curl_easy_setopt_ccsid().

Daniel Stenberg (23 May 2019)
- .github/FUNDING: mention our opencollective "home" [ci skip]

Marcel Raad (23 May 2019)
- [Zenju brought this change]

  config-win32: add support for if_nametoindex and getsockname
  
  Closes https://github.com/curl/curl/pull/3923

Jay Satiro (23 May 2019)
- tests: Fix the line endings for the SASL alt-auth tests
  
  - Change data and protocol sections to CRLF line endings.
  
  Prior to this change the tests would fail or hang, which is because
  certain sections such as protocol require CRLF line endings.
  
  Follow-up to a9499ff from today which added the tests.
  
  Ref: https://github.com/curl/curl/pull/3790

Daniel Stenberg (23 May 2019)
- url: fix bad #ifdef
  
  Regression since e91e48161235272ff485.
  
  Reported-by: Tom Greenslade
  Fixes #3924
  Closes #3925

- Revert "progress: CURL_DISABLE_PROGRESS_METER"
  
  This reverts commit 3b06e68b7734cb10a555f9d7e804dd5d808236a4.
  
  Clearly this change wasn't good enough as it broke CURLOPT_LOW_SPEED_LIMIT +
  CURLOPT_LOW_SPEED_TIME
  
  Reported-by: Dave Reisner
  
  Fixes #3927
  Closes #3928

Steve Holme (22 May 2019)
- examples: Added SASL PLAIN authorisation identity (authzid) examples

- curl: --sasl-authzid added to support CURLOPT_SASL_AUTHZID from the tool

- sasl: Implement SASL authorisation identity via CURLOPT_SASL_AUTHZID
  
  Added the ability for the calling program to specify the authorisation
  identity (authzid), the identity to act as, in addition to the
  authentication identity (authcid) and password when using SASL PLAIN
  authentication.
  
  Fixed #3653
  Closes #3790

Marc Hoersken (22 May 2019)
- tests: add support to test against OpenSSH for Windows
  
  Testing against OpenSSH for Windows requires v7.7.0.0 or newer
  due to the use of AllowUsers and DenyUsers. For more info see:
  https://github.com/PowerShell/Win32-OpenSSH/wiki/sshd_config

Daniel Stenberg (22 May 2019)
- bump: start on the next release

Marcel Raad (22 May 2019)
- examples: fix "clarify calculation precedence" warnings
  
  Closes https://github.com/curl/curl/pull/3919

- hiperfifo: remove unused variable
  
  Closes https://github.com/curl/curl/pull/3919

- examples: remove dead variable stores
  
  Closes https://github.com/curl/curl/pull/3919

- examples: reduce variable scopes
  
  Closes https://github.com/curl/curl/pull/3919

- http2-download: fix format specifier
  
  Closes https://github.com/curl/curl/pull/3919

Daniel Stenberg (22 May 2019)
- PolarSSL: deprecate support step 1. Removed from configure.
  
  Also removed mentions from most docs.
  
  Discussed: https://curl.haxx.se/mail/lib-2019-05/0045.html
  
  Closes #3888

- configure/cmake: check for if_nametoindex()
  
  - adds the check to cmake
  
  - fixes the configure check to work for cross-compiled windows builds
  
  Closes #3917

- parse_proxy: use the IPv6 zone id if given
  
  If the proxy string is given as an IPv6 numerical address with a zone
  id, make sure to use that for the connect to the proxy.
  
  Reported-by: Edmond Yu
  
  Fixes #3482
  Closes #3918

Version 7.65.0 (22 May 2019)

Daniel Stenberg (22 May 2019)
- RELEASE-NOTES: 7.65.0 release

- THANKS: from the 7.65.0 release-notes

- url: convert the zone id from a IPv6 URL to correct scope id
  
  Reported-by: GitYuanQu on github
  Fixes #3902
  Closes #3914

- configure: detect getsockname and getpeername on windows too
  
  Made detection macros for these two functions in the same style as other
  functions possibly in winsock in the hope this will work better to
  detect these functions when cross-compiling for Windows.
  
  Follow-up to e91e4816123
  
  Fixes #3913
  Closes #3915

Marcel Raad (21 May 2019)
- examples: remove unused variables
  
  Fixes Codacy/CppCheck warnings.
  
  Closes

Daniel Gustafsson (21 May 2019)
- udpateconninfo: mark variable unused
  
  When compiling without getpeername() or getsockname(), the sockfd
  paramter to Curl_udpateconninfo() became unused after commit e91e481612
  added ifdef guards.
  
  Closes #3910
  Fixes https://curl.haxx.se/dev/log.cgi?id=20190520172441-32196
  Reviewed-by: Marcel Raad, Daniel Stenberg

- ftp: move ftp_ccc in under featureflag
  
  Commit e91e48161235272ff485ff32bd048c53af731f43 moved ftp_ccc in under
  the FTP featureflag in the UserDefined struct, but vtls callsites were
  still using it unprotected.
  
  Closes #3912
  Fixes: https://curl.haxx.se/dev/log.cgi?id=20190520044705-29865
  Reviewed-by: Daniel Stenberg, Marcel Raad

Daniel Stenberg (20 May 2019)
- curl: report error for "--no-" on non-boolean options
  
  Reported-by: Olen Andoni
  Fixes #3906
  Closes #3907

- [Guy Poizat brought this change]

  mbedtls: enable use of EC keys
  
  Closes #3892

- lib1560: add tests for parsing URL with too long scheme
  
  Ref: #3905

- [Omar Ramadan brought this change]

  urlapi: increase supported scheme length to 40 bytes
  
  The longest currently registered URI scheme at IANA is 36 bytes long.
  
  Closes #3905
  Closes #3900

Marcel Raad (20 May 2019)
- lib: reduce variable scopes
  
  Fixes Codacy/CppCheck warnings.
  
  Closes https://github.com/curl/curl/pull/3872

- tool_formparse: remove redundant assignment
  
  Just initialize word_begin with the correct value.
  
  Closes https://github.com/curl/curl/pull/3873

- ssh: move variable declaration to where it's used
  
  This way, we need only one call to free.
  
  Closes https://github.com/curl/curl/pull/3873

- ssh-libssh: remove unused variable
  
  sock was only used to be assigned to fd_read.
  
  Closes https://github.com/curl/curl/pull/3873

Daniel Stenberg (20 May 2019)
- test332: verify the blksize fix

- tftp: use the current blksize for recvfrom()
  
  bug: https://curl.haxx.se/docs/CVE-2019-5436.html
  Reported-by: l00p3r on hackerone
  CVE-2019-5436

Daniel Gustafsson (19 May 2019)
- version: make ssl_version buffer match for multi_ssl
  
  When running a multi TLS backend build the version string needs more
  buffer space. Make the internal ssl_buffer stack buffer match the one
  in Curl_multissl_version() to allow for the longer string. For single
  TLS backend builds there is no use in extended to buffer. This is a
  fallout from #3863 which fixes up the multi_ssl string generation to
  avoid a buffer overflow when the buffer is too small.
  
  Closes #3875
  Reviewed-by: Daniel Stenberg <daniel@haxx.se>

Steve Holme (18 May 2019)
- http_ntlm_wb: Handle auth for only a single request
  
  Currently when the server responds with 401 on NTLM authenticated
  connection (re-used) we consider it to have failed.  However this is
  legitimate and may happen when for example IIS is set configured to
  'authPersistSingleRequest' or when the request goes thru a proxy (with
  'via' header).
  
  Implemented by imploying an additional state once a connection is
  re-used to indicate that if we receive 401 we need to restart
  authentication.
  
  Missed in fe6049f0.

- http_ntlm_wb: Cleanup handshake after clean NTLM failure
  
  Missed in 50b87c4e.

- http_ntlm_wb: Return the correct error on receiving an empty auth message
  
  Missed in fe20826b as it wasn't implemented in http.c in b4d6db83.
  
  Closes #3894

Daniel Stenberg (18 May 2019)
- curl: make code work with protocol-disabled libcurl
  
  Closes #3844

- libcurl: #ifdef away more code for disabled features/protocols

- progress: CURL_DISABLE_PROGRESS_METER

- hostip: CURL_DISABLE_SHUFFLE_DNS

- netrc: CURL_DISABLE_NETRC

Viktor Szakats (16 May 2019)
- docs: Markdown and misc improvements [ci skip]
  
  Approved-by: Daniel Stenberg
  Closes #3896

- docs/RELEASE-PROCEDURE: link to live iCalendar [ci skip]
  
  Ref: https://github.com/curl/curl/commit/0af41b40b2c7bd379b2251cbe7cd618e21fa0ea1#commitcomment-33563135
  Approved-by: Daniel Stenberg
  Closes #3895

Daniel Stenberg (16 May 2019)
- travis: add an osx http-only build
  
  Closes #3887

- cleanup: remove FIXME and TODO comments
  
  They serve very little purpose and mostly just add noise. Most of them
  have been around for a very long time. I read them all before removing
  or rephrasing them.
  
  Ref: #3876
  Closes #3883

- curl: don't set FTP options for FTP-disabled builds
  
  ... since libcurl has started to be totally unaware of options for
  disabled protocols they now return error.
  
  Bug: https://github.com/curl/curl/commit/c9c5304dd4747cbe75d2f24be85920d572fcb5b8#commitcomment-33533937
  
  Reported-by: Marcel Raad
  Closes #3886

Steve Holme (16 May 2019)
- http_ntlm_wb: Move the type-2 message processing into a dedicated function
  
  This brings the code inline with the other HTTP authentication mechanisms.
  
  Closes #3890

Daniel Stenberg (15 May 2019)
- RELEASE-NOTES: synced

- docs/RELEASE-PROCEDURE: updated coming releases dates [ci skip]

- CURLOPT_READFUNCTION.3: see also CURLOPT_UPLOAD_BUFFERSIZE [ci skip]
  
  Reported-by: Roy Bellingan
  Bug: #3885

- parse_proxy: use the URL parser API
  
  As we treat a given proxy as a URL we should use the unified URL parser
  to extract the parts out of it.
  
  Closes #3878

Steve Holme (15 May 2019)
- http_negotiate: Move the Negotiate state out of the negotiatedata structure
  
  Given that this member variable is not used by the SASL based protocols
  there is no need to have it here.
  
  Closes #3882

- http_ntlm: Move the NTLM state out of the ntlmdata structure
  
  Given that this member variable is not used by the SASL based protocols
  there is no need to have it here.

- url: Move the negotiate state type into a dedicated enum

- url: Remove duplicate clean up of the winbind variables in conn_shutdown()
  
  Given that Curl_disconnect() calls Curl_http_auth_cleanup_ntlm() prior
  to calling conn_shutdown() and it in turn performs this, there is no
  need to perform the same action in conn_shutdown().
  
  Closes #3881

Daniel Stenberg (14 May 2019)
- urlapi: require a non-zero host name length when parsing URL
  
  Updated test 1560 to verify.
  
  Closes #3880

- configure: error out if OpenSSL wasn't detected when asked for
  
  If --with-ssl is used and configure still couldn't enable SSL this
  creates an error instead of just silently ignoring the fact.
  
  Suggested-by: Isaiah Norton
  Fixes #3824
  Closes #3830

Daniel Gustafsson (14 May 2019)
- imap: Fix typo in comment

Steve Holme (14 May 2019)
- url: Remove unnecessary initialisation from allocate_conn()
  
  No need to set variables to zero as calloc() does this for us.
  
  Closes #3879

Daniel Stenberg (14 May 2019)
- CURLOPT_CAINFO.3: with Schannel, you want Windows 8 or later [ci skip]
  
  Clues-provided-by: Jay Satiro
  Clues-provided-by: Jeroen Ooms
  Fixes #3711
  Closes #3874

Daniel Gustafsson (13 May 2019)
- vtls: fix potential ssl_buffer stack overflow
  
  In Curl_multissl_version() it was possible to overflow the passed in
  buffer if the generated version string exceeded the size of the buffer.
  Fix by inverting the logic, and also make sure to not exceed the local
  buffer during the string generation.
  
  Closes #3863
  Reported-by: nevv on HackerOne/curl
  Reviewed-by: Jay Satiro
  Reviewed-by: Daniel Stenberg

Daniel Stenberg (13 May 2019)
- RELEASE-NOTES: synced

- appveyor: also build "/ci" branches like travis

- pingpong: disable more when no pingpong enabled

- proxy: acknowledge DISABLE_PROXY more

- parsedate: CURL_DISABLE_PARSEDATE

- sasl: only enable if there's a protocol enabled using it

- mime: acknowledge CURL_DISABLE_MIME

- wildcard: disable from build when FTP isn't present

- http: CURL_DISABLE_HTTP_AUTH

- base64: build conditionally if there are users

- doh: CURL_DISABLE_DOH

Steve Holme (12 May 2019)
- auth: Rename the various authentication clean up functions
  
  For consistency and to a avoid confusion.
  
  Closes #3869

Daniel Stenberg (12 May 2019)
- [Jay Satiro brought this change]

  docs/INSTALL: fix broken link [ci skip]
  
  Reported-by: Joombalaya on github
  Fixes #3818

Marcel Raad (12 May 2019)
- easy: fix another "clarify calculation precedence" warning
  
  I missed this one in commit 6b3dde7fe62ea5a557fd1fd323fac2bcd0c2e9be.

- build: fix "clarify calculation precedence" warnings
  
  Codacy/CppCheck warns about this. Consistently use parentheses as we
  already do in some places to silence the warning.
  
  Closes https://github.com/curl/curl/pull/3866

- cmake: restore C89 compatibility of CurlTests.c
  
  I broke it in d1b5cf830bfe169745721b21245d2217d2c2453e and
  97de97daefc2ed084c91eff34af2426f2e55e134.
  
  Reported-by: Viktor Szakats
  Ref: https://github.com/curl/curl/commit/97de97daefc2ed084c91eff34af2426f2e55e134#commitcomment-33499044
  Closes https://github.com/curl/curl/pull/3868

Steve Holme (11 May 2019)
- http_ntlm: Corrected the name of the include guard
  
  Missed in f0bdd72c.
  
  Closes #3867

- http_digest: Don't expose functions when HTTP and Crypto Auth are disabled
  
  Closes #3861

- http_negotiate: Don't expose functions when HTTP is disabled

Daniel Stenberg (11 May 2019)
- SECURITY-PROCESS: fix links [ci skip]

Marcel Raad (11 May 2019)
- CMake: suppress unused variable warnings
  
  I missed these in commit d1b5cf830bfe169745721b21245d2217d2c2453e.

Daniel Stenberg (11 May 2019)
- doh: disable DOH for the cases it doesn't work
  
  Due to limitations in Curl_resolver_wait_resolv(), it doesn't work for
  DOH resolves. This fix disables DOH for those.
  
  Limitation added to KNOWN_BUGS.
  
  Fixes #3850
  Closes #3857

Jay Satiro (11 May 2019)
- checksrc.bat: Ignore snprintf warnings in docs/examples
  
  .. because we allow snprintf use in docs/examples.
  
  Closes https://github.com/curl/curl/pull/3862

Steve Holme (10 May 2019)
- vauth: Fix incorrect function description for Curl_auth_user_contains_domain()
  
  ...and misalignment of these comments. From a78c61a4.
  
  Closes #3860

Jay Satiro (10 May 2019)
- Revert "multi: support verbose conncache closure handle"
  
  This reverts commit b0972bc.
  
  - No longer show verbose output for the conncache closure handle.
  
  The offending commit was added so that the conncache closure handle
  would inherit verbose mode from the user's easy handle. (Note there is
  no way for the user to set options for the closure handle which is why
  that was necessary.) Other debug settings such as the debug function
  were not also inherited since we determined that could lead to crashes
  if the user's per-handle private data was used on an unexpected handle.
  
  The reporter here says he has a debug function to capture the verbose
  output, and does not expect or want any output to stderr; however
  because the conncache closure handle does not inherit the debug function
  the verbose output for that handle does go to stderr.
  
  There are other plausible scenarios as well such as the user redirects
  stderr on their handle, which is also not inherited since it could lead
  to crashes when used on an unexpected handle.
  
  Short of allowing the user to set options for the conncache closure
  handle I don't think there's much we can safely do except no longer
  inherit the verbose setting.
  
  Bug: https://curl.haxx.se/mail/lib-2019-05/0021.html
  Reported-by: Kristoffer Gleditsch
  
  Ref: https://github.com/curl/curl/pull/3598
  Ref: https://github.com/curl/curl/pull/3618
  
  Closes https://github.com/curl/curl/pull/3856

Steve Holme (10 May 2019)
- ntlm: Fix misaligned function comments for Curl_auth_ntlm_cleanup()
  
  From 6012fa5a.
  
  Closes #3858

Daniel Stenberg (9 May 2019)
- BUG-BOUNTY: minor formatting fixes [ci skip]

- RELEASE-NOTES: synced

- BUG-BOUNTY.md: add the Dropbox "bonus" extra payout ability [ci skip]
  
  Closes #3839

Kamil Dudka (9 May 2019)
- http_negotiate: do not treat failure of gss_init_sec_context() as fatal
  
  Fixes #3726
  Closes #3849

- spnego_gssapi: fix return code on gss_init_sec_context() failure
  
  Fixes #3726
  Closes #3849

Steve Holme (9 May 2019)
- gen_resp_file.bat: Removed unnecessary @ from all but the first command
  
  There is need to use @ on every command once echo has been turned off.
  
  Closes #3854

Jay Satiro (8 May 2019)
- http: Ignore HTTP/2 prior knowledge setting for HTTP proxies
  
  - Do not switch to HTTP/2 for an HTTP proxy that is not tunnelling to
    the destination host.
  
  We already do something similar for HTTPS proxies by not sending h2. [1]
  
  Prior to this change setting CURL_HTTP_VERSION_2_PRIOR_KNOWLEDGE would
  incorrectly use HTTP/2 to talk to the proxy, which is not something we
  support (yet?). Also it's debatable whether or not that setting should
  apply to HTTP/2 proxies.
  
  [1]: https://github.com/curl/curl/commit/17c5d05
  
  Bug: https://github.com/curl/curl/issues/3570
  Bug: https://github.com/curl/curl/issues/3832
  
  Closes https://github.com/curl/curl/pull/3853

Marcel Raad (8 May 2019)
- travis: update mesalink build to xenial
  
  Closes https://github.com/curl/curl/pull/3842

Daniel Stenberg (8 May 2019)
- [Ricky Leverence brought this change]

  OpenSSL: Report -fips in version if OpenSSL is built with FIPS
  
  Older versions of OpenSSL report FIPS availabilty via an OPENSSL_FIPS
  define. It uses this define to determine whether to publish -fips at
  the end of the version displayed. Applications that utilize the version
  reported by OpenSSL will see a mismatch if they compare it to what curl
  reports, as curl is not modifying the version in the same way. This
  change simply adds a check to see if OPENSSL_FIPS is defined, and will
  alter the reported version to match what OpenSSL itself provides. This
  only appears to be applicable in versions of OpenSSL <1.1.1
  
  Closes #3771

Kamil Dudka (7 May 2019)
- [Frank Gevaerts brought this change]

  nss: allow fifos and character devices for certificates.
  
  Currently you can do things like --cert <(cat ./cert.crt) with (at least) the
  openssl backend, but that doesn't work for nss because is_file rejects fifos.
  
  I don't actually know if this is sufficient, nss might do things internally
  (like seeking back) that make this not work, so actual testing is needed.
  
  Closes #3807

Daniel Gustafsson (6 May 2019)
- test2100: Fix typos in test description

Daniel Stenberg (6 May 2019)
- ssh: define USE_SSH if SSH is enabled (any backend)
  
  Closes #3846

Steve Holme (5 May 2019)
- winbuild: Add our standard copyright header to the winbuild batch files

- makedebug: Fix ERRORLEVEL detection after running where.exe
  
  Closes #3838

Daniel Stenberg (5 May 2019)
- urlapi: add CURLUPART_ZONEID to set and get
  
  The zoneid can be used with IPv6 numerical addresses.
  
  Updated test 1560 to verify.
  
  Closes #3834

- [Taiyu Len brought this change]

  WRITEFUNCTION: add missing set_in_callback around callback
  
  Closes #3837

- RELEASE-NOTES: synced

- CURLMOPT_TIMERFUNCTION.3: warn about the recursive risk [ci skip]
  
  Reported-by: Ricardo Gomes
  
  Bug: #3537
  Closes #3836

- CURLOPT_CHUNK_BGN_FUNCTION.3: document the struct and time value
  
  The time field in the curl_fileinfo struct will always be zero. No code
  was ever implemented to actually convert the date string to a time_t.
  
  Fixes #3829
  Closes #3835

- OS400/ccsidcurl.c: code style fixes

- OS400/ccsidcurl: replace use of Curl_vsetopt
  
  (and make the code style comply)
  
  Fixes #3833

- urlapi: strip off scope id from numerical IPv6 addresses
  
  ... to make the host name "usable". Store the scope id and put it back
  when extracting a URL out of it.
  
  Also makes curl_url_set() syntax check CURLUPART_HOST.
  
  Fixes #3817
  Closes #3822

- RELEASE-NOTES: synced

- multiif.h: remove unused protos
  
  ... for functions related to pipelining. Those functions were removed in
  2f44e94efb3df.
  
  Closes #3828

- [Yiming Jing brought this change]

  travis: mesalink: temporarily disable test 3001
  
  ... due to SHA-1 signatures in test certs

- [Yiming Jing brought this change]

  travis: upgrade the MesaLink TLS backend to v1.0.0
  
  Closes #3823
  Closes #3776

- ConnectionExists: improve non-multiplexing use case
  
  - better log output
  
  - make sure multiplex is enabled for it to be used

- multi: provide Curl_multiuse_state to update information
  
  As soon as a TLS backend gets ALPN conformation about the specific HTTP
  version it can now set the multiplex situation for the "bundle" and
  trigger moving potentially queued up transfers to the CONNECT state.

- process_pending_handles: mark queued transfers as previously pending
  
  With transfers being queued up, we only move one at a a time back to the
  CONNECT state but now we mark moved transfers so that when a moved
  transfer is confirmed "successful" (it connected) it will trigger the
  move of another pending transfer. Previously, it would otherwise wait
  until the transfer was done before doing this. This makes queued up
  pending transfers get processed (much) faster.

- http: mark bundle as not for multiuse on < HTTP/2 response
  
  Fixes #3813
  Closes #3815

Daniel Gustafsson (1 May 2019)
- cookie: Guard against possible NULL ptr deref
  
  In case the name pointer isn't set (due to memory pressure most likely)
  we need to skip the prefix matching and reject with a badcookie to avoid
  a possible NULL pointer dereference.
  
  Closes #3820 #3821
  Reported-by: Jonathan Moerman
  Reviewed-by: Daniel Stenberg <daniel@haxx.se>

Patrick Monnerat (30 Apr 2019)
- os400: Add CURLOPT_MAXAGE_CONN to ILE/RPG bindings

Kamil Dudka (29 Apr 2019)
- nss: provide more specific error messages on failed init
  
  Closes #3808

Daniel Stenberg (29 Apr 2019)
- [Reed Loden brought this change]

  docs: minor polish to the bug bounty / security docs
  
  Closes #3811

- CURL_MAX_INPUT_LENGTH: largest acceptable string input size
  
  This limits all accepted input strings passed to libcurl to be less than
  CURL_MAX_INPUT_LENGTH (8000000) bytes, for these API calls:
  curl_easy_setopt() and curl_url_set().
  
  The 8000000 number is arbitrary picked and is meant to detect mistakes
  or abuse, not to limit actual practical use cases. By limiting the
  acceptable string lengths we also reduce the risk of integer overflows
  all over.
  
  NOTE: This does not apply to `CURLOPT_POSTFIELDS`.
  
  Test 1559 verifies.
  
  Closes #3805

- [Tseng Jun brought this change]

  curlver.h: use parenthesis in CURL_VERSION_BITS macro
  
  Closes #3809

Marcel Raad (27 Apr 2019)
- [Simon Warta brought this change]

  cmake: rename CMAKE_USE_DARWINSSL to CMAKE_USE_SECTRANSP
  
  Closes https://github.com/curl/curl/pull/3769

Steve Holme (23 Apr 2019)
- ntlm: Missed pre-processor || (or) during rebase for cd15acd0

- ntlm: Support the NT response in the type-3 when OpenSSL doesn't include MD4
  
  Just like we do for mbed TLS, use our local implementation of MD4 when
  OpenSSL doesn't support it. This allows a type-3 message to include the
  NT response.

Daniel Gustafsson (23 Apr 2019)
- INTERNALS: fix misindentation of ToC item
  
  Kerberos was incorrectly indented as a subsection under FTP, which is
  incorrect as they are both top level sections. A fix for this was first
  attempted in commit fef38a0898322f285401c5ff2f5e7c90dbf3be63 but that
  was a few paddles short of being complete.

- [Aron Bergman brought this change]

  INTERNALS: Add structs to ToC
  
  Add the subsections under "Structs in libcurl" to the table of contents.
  
  Reviewed-by: Daniel Stenberg <daniel@haxx.se>
  Reviewed-by: Daniel Gustafsson <daniel@yesql.se>

- [Aron Bergman brought this change]

  INTERNALS: Add code highlighting
  
  Make all struct members under the Curl_handler section
  print in monospace font.
  
  Closes #3801
  Reviewed-by: Daniel Stenberg <daniel@haxx.se>
  Reviewed-by: Daniel Gustafsson <daniel@yesql.se>

Daniel Stenberg (22 Apr 2019)
- docs/BUG-BOUNTY: bug bounty time [skip ci]
  
  Introducing the curl bug bounty program on hackerone. We now recommend
  filing security issues directly in the hackerone ticket system which
  only is readable to curl security team members.
  
  Assisted-by: Daniel Gustafsson
  
  Closes #3488

Steve Holme (22 Apr 2019)
- sasl: Don't send authcid as authzid for the PLAIN mechanism as per RFC 4616
  
  RFC 4616 specifies the authzid is optional in the client authentication
  message and that the server will derive the authorisation identity
  (authzid) from the authentication identity (authcid) when not specified
  by the client.

Jay Satiro (22 Apr 2019)
- [Gisle Vanem brought this change]

  memdebug: fix variable name
  
  Follow-up to 76b6348 which renamed logfile as curl_dbg_logfile.
  
  Ref: https://github.com/curl/curl/commit/76b6348#r33259088

Steve Holme (21 Apr 2019)
- vauth/cleartext: Don't send the authzid if it is empty
  
  Follow up to 762a292f.

Daniel Stenberg (21 Apr 2019)
- test 196,197,198: add 'retry' keyword [skip ci]

- RELEASE-NOTES: synced

- CURLOPT_MAXAGE_CONN: set the maximum allowed age for conn reuse
  
  ... and disconnect too old ones instead of trying to reuse.
  
  Default max age is set to 118 seconds.
  
  Ref: #3722
  Closes #3782

Daniel Gustafsson (20 Apr 2019)
- [Po-Chuan Hsieh brought this change]

  altsvc: Fix building with cookies disables
  
  ALTSVC requires Curl_get_line which is defined in lib/cookie.c inside a #if
  check of HTTP and COOKIES. That makes Curl_get_line undefined if COOKIES is
  disabled. Fix by splitting out the function into a separate file which can
  be included where needed.
  
  Closes #3717
  Reviewed-by: Daniel Gustafsson <daniel@yesql.se>
  Reviewed-by: Marcel Raad <Marcel.Raad@teamviewer.com>

Daniel Stenberg (20 Apr 2019)
- test1002: correct the name [skip ci]

- test660: verify CONNECT_ONLY with IMAP
  
  which basically just makes sure LOGOUT is *not* issued on disconnect

- Curl_disconnect: treat all CONNECT_ONLY connections as "dead"
  
  Since the connection has been used by the "outside" we don't know the
  state of it anymore and curl should not use it anymore.
  
  Bug: https://curl.haxx.se/mail/lib-2019-04/0052.html
  
  Closes #3795

- multi: fix the statenames (follow-up fix from 2f44e94efb3df8e)
  
  The list of names must be in sync with the defined states in the header
  file!

Steve Holme (16 Apr 2019)
- openvms: Remove pre-processors for Windows as VMS cannot support them

- openvms: Remove pre-processor for SecureTransport as VMS cannot support it
  
  Fixes #3768
  Closes #3785

Jay Satiro (16 Apr 2019)
- TODO: Add issue link to an existing entry

Daniel Stenberg (16 Apr 2019)
- RELEASE-NOTES: synced

Jay Satiro (16 Apr 2019)
- tool_help: Warn if curl and libcurl versions do not match
  
  .. because functionality may be affected if the versions differ.
  
  This commit implements TODO 18.7 "warning if curl version is not in sync
  with libcurl version".
  
  Ref: https://github.com/curl/curl/blob/curl-7_64_1/docs/TODO#L1028-L1033
  
  Closes https://github.com/curl/curl/pull/3774

Steve Holme (16 Apr 2019)
- md5: Update the function signature following d84da52d

- md5: Forgot to update the code alignment in d84da52d

- md5: Return CURLcode from the internally accessible functions
  
  Following 28f826b3 to return CURLE_OK instead of numeric 0.

Daniel Gustafsson (15 Apr 2019)
- tests: Run global cleanup at end of tests
  
  Make sure to run curl_global_cleanup() when shutting down the test
  suite to release any resources allocated in the SSL setup. This is
  clearly visible when running tests with PolarSSL where the thread
  lock calloc() memory which isn't released when not running cleanup.
  Below is an excerpt from the autobuild logs:
  
    ==12368== 96 bytes in 1 blocks are possibly lost in loss record 1 of 2
    ==12368== at 0x4837B65: calloc (vg_replace_malloc.c:752)
    ==12368== by 0x11A76E: curl_dbg_calloc (memdebug.c:205)
    ==12368== by 0x145CDF: Curl_polarsslthreadlock_thread_setup
                           (polarssl_threadlock.c:54)
    ==12368== by 0x145B37: Curl_polarssl_init (polarssl.c:865)
    ==12368== by 0x14129D: Curl_ssl_init (vtls.c:171)
    ==12368== by 0x118B4C: global_init (easy.c:158)
    ==12368== by 0x118BF5: curl_global_init (easy.c:221)
    ==12368== by 0x118D0B: curl_easy_init (easy.c:299)
    ==12368== by 0x114E96: test (lib1906.c:32)
    ==12368== by 0x115495: main (first.c:174)
  
  Closes #3783
  Reviewed-by: Marcel Raad <Marcel.Raad@teamviewer.com>
  Reviewed-by: Daniel Stenberg <daniel@haxx.se>

Marcel Raad (15 Apr 2019)
- travis: use mbedtls from Xenial
  
  No need to build it from source anymore.
  
  Closes https://github.com/curl/curl/pull/3779

- travis: use libpsl from Xenial
  
  This makes building libpsl and libidn2 from source unnecessary and
  removes the need for the autopoint and libunistring-dev packages.
  
  Closes https://github.com/curl/curl/pull/3779

Daniel Stenberg (15 Apr 2019)
- runtests: start socksd like other servers
  
  ... without a $srcdir prefix. Triggered by the failures in several
  autobuilds.
  
  Closes #3781

Daniel Gustafsson (14 Apr 2019)
- socksd: Fix typos
  
  Reviewed-by: Daniel Stenberg <daniel@haxx.se>

- socksd: Properly decorate static variables
  
  Mark global variables static to avoid compiler warning in Clang when
  using -Wmissing-variable-declarations.
  
  Closes #3778
  Reviewed-by: Daniel Stenberg <daniel@haxx.se>

Steve Holme (14 Apr 2019)
- md(4|5): Fixed indentation oddities with the importation of replacement code
  
  The indentation from 211d5329 and 57d6d253 was a little strange as
  parts didn't align correctly, uses 4 spaces rather than 2. Checked
  the indentation of the original source so it aligns, albeit, using
  curl style.

- md5: Code style to return CURLE_OK rather than numeric 0

- md5: Corrected code style for some pointer arguments

Marcel Raad (13 Apr 2019)
- travis: update some builds to xenial
  
  Xenial comes with more up-to-date software versions and more available
  packages, some of which we currently build from source. Unfortunately,
  some builds would fail with Xenial because of assertion failures in
  Valgrind when using OpenSSL, so leave these at Trusty.
  
  Closes https://github.com/curl/curl/pull/3777

Daniel Stenberg (13 Apr 2019)
- test: make tests and test scripts use socksd for SOCKS
  
  Make all SOCKS tests use socksd instead of ssh.

- socksd: new SOCKS 4+5 server for tests
  
  Closes #3752

- singleipconnect: show port in the verbose "Trying ..." message
  
  To aid debugging better.

- [tmilburn brought this change]

  CURLOPT_ADDRESS_SCOPE: fix range check and more
  
  Commit 9081014 fixed most of the confusing issues between scope id and
  scope however 844896d added bad limits checking assuming that the scope
  is being set and not the scope id.
  
  I have fixed the documentation so it all refers to scope ids.
  
  In addition Curl_if2ip refered to the scope id as remote_scope_id which
  is incorrect, so I renamed it to local_scope_id.
  
  Adjusted-by: Daniel Stenberg
  
  Closes #3655
  Closes #3765
  Fixes #3713

- urlapi: stricter CURLUPART_PORT parsing
  
  Only allow well formed decimal numbers in the input.
  
  Document that the number MUST be between 1 and 65535.
  
  Add tests to test 1560 to verify the above.
  
  Ref: https://github.com/curl/curl/issues/3753
  Closes #3762

Jay Satiro (13 Apr 2019)
- [Jan Ehrhardt brought this change]

  winbuild: Support MultiSSL builds
  
  - Remove the lines in winbuild/Makefile.vc that generate an error with
    multiple SSL backends.
  
  - Add /DCURL_WITH_MULTI_SSL in winbuild/MakefileBuild.vc if multiple SSL
    backends are set.
  
  Closes https://github.com/curl/curl/pull/3772

Daniel Stenberg (12 Apr 2019)
- travis: remove mesalink builds (temporarily?)
  
  Since the mesalink build started to fail on travis, even though we build
  a fixed release version, we disable it to prevent it from blocking
  progress.
  
  Closes #3767

- openssl: mark connection for close on TLS close_notify
  
  Without this, detecting and avoid reusing a closed TLS connection
  (without a previous GOAWAY) when doing HTTP/2 is tricky.
  
  Reported-by: Tom van der Woerdt
  Fixes #3750
  Closes #3763

- RELEASE-NOTES: synced

Steve Holme (11 Apr 2019)
- vauth/cleartext: Update the PLAIN login function signature to match RFC 4616
  
  Functionally this doesn't change anything as we still use the username
  for both the authorisation identity and the authentication identity.
  
  Closes #3757

Daniel Stenberg (11 Apr 2019)
- test1906: verify CURLOPT_CURLU + CURLOPT_PORT usage
  
  Based-on-code-by: Poul T Lomholt

- url: always clone the CUROPT_CURLU handle
  
  Since a few code paths actually update that data.
  
  Fixes #3753
  Closes #3761
  
  Reported-by: Poul T Lomholt

- CURLOPT_DNS_USE_GLOBAL_CACHE: remove
  
  Remove the code too. The functionality has been disabled in code since
  7.62.0. Setting this option will from now on simply be ignored and have
  no function.
  
  Closes #3654

Marcel Raad (11 Apr 2019)
- travis: install libgnutls28-dev only for --with-gnutls build
  
  Reduces the time needed for the other jobs a little.
  
  Closes https://github.com/curl/curl/pull/3721

- travis: install libnss3-dev only for --with-nss build
  
  Reduces the time needed for the other jobs a little.
  
  Closes https://github.com/curl/curl/pull/3721

- travis: install libssh2-dev only for --with-libssh2 build
  
  Reduces the time needed for the other jobs a little.
  
  Closes https://github.com/curl/curl/pull/3721

- travis: install libssh-dev only for --with-libssh build
  
  Reduces the time needed for the other jobs a little.
  
  Closes https://github.com/curl/curl/pull/3721

- travis: install krb5-user only for --with-gssapi build
  
  Reduces the time needed for the other jobs a little.
  
  Closes https://github.com/curl/curl/pull/3721

- travis: install lcov only for the coverage job
  
  Reduces the time needed for the other jobs a little.
  
  Closes https://github.com/curl/curl/pull/3721

- travis: install clang only when needed
  
  This reduces the GCC job runtimes a little and it's needed to
  selectively update clang builds to xenial.
  
  Closes https://github.com/curl/curl/pull/3721

- AppVeyor: enable testing for WinSSL build
  
  Closes https://github.com/curl/curl/pull/3725

- build: fix Codacy/CppCheck warnings
  
  - remove unused variables
  - declare conditionally used variables conditionally
  - suppress unused variable warnings in the CMake tests
  - remove dead variable stores
  - consistently use WIN32 macro to detect Windows
  
  Closes https://github.com/curl/curl/pull/3739

- polarssl_threadlock: remove conditionally unused code
  
  Make functions no-ops if neither both USE_THREADS_POSIX and
  HAVE_PTHREAD_H nor both USE_THREADS_WIN32 and HAVE_PROCESS_H are
  defined. Previously, if only one of them was defined, there was either
  code compiled that did nothing useful or the wrong header included for
  the functions used.
  
  Also, move POLARSSL_MUTEX_T define to implementation file as it's not
  used externally.
  
  Closes https://github.com/curl/curl/pull/3739

- lib557: initialize variables
  
  These variables are only conditionally initialized.
  
  Closes https://github.com/curl/curl/pull/3739

- lib509: add missing include for strdup
  
  Closes https://github.com/curl/curl/pull/3739

- README.md: fix no-consecutive-blank-lines Codacy warning
  
  Consistently use one blank line between blocks.
  
  Closes https://github.com/curl/curl/pull/3739

- tests/server/util: fix Windows Unicode build
  
  Always use the ANSI version of FormatMessage as we don't have the
  curl_multibyte gear available here.
  
  Closes https://github.com/curl/curl/pull/3758

Daniel Stenberg (11 Apr 2019)
- curl_easy_getinfo.3: fix minor formatting mistake

Daniel Gustafsson (11 Apr 2019)
- xattr: skip unittest on unsupported platforms
  
  The stripcredentials unittest fails to compile on platforms without
  xattr support, for example the Solaris member in the buildfarm which
  fails with the following:
  
    CC unit1621-unit1621.o
    CC ../libtest/unit1621-first.o
    CCLD unit1621
    Undefined first referenced
    symbol in file
    stripcredentials unit1621-unit1621.o
    goto problem 2
    ld: fatal: symbol referencing errors. No output written to .libs/unit1621
    collect2: error: ld returned 1 exit status
    gmake[2]: *** [Makefile:996: unit1621] Error 1
  
  Fix by excluding the test on such platforms by using the reverse
  logic from where stripcredentials() is defined.
  
  Closes #3759
  Reviewed-by: Daniel Stenberg <daniel@haxx.se>

Steve Holme (11 Apr 2019)
- emailL Added reference to RFC8314 for implicit TLS

- README: Schannel, stop calling it "winssl"
  
  Stick to "Schannel" everywhere - follow up to 180501cb.

Jakub Zakrzewski (10 Apr 2019)
- cmake: clear CMAKE_REQUIRED_LIBRARIES after each use
  
  This fixes GSSAPI builds with the libraries in a non-standard location.
  The testing for recv() were failing because it failed to link
  the Kerberos libraries, which are not needed for this or subsequent
  tests.
  
  fixes #3743
  closes #3744

- cmake: avoid linking executable for some tests with cmake 3.6+
  
  With CMAKE_TRY_COMPILE_TARGET_TYPE set to STATIC_LIBRARY, the try_compile()
  (which is used by check_c_source_compiles()) will build static library
  instead of executable. This avoids linking additional libraries in and thus
  speeds up those checks a little.
  
  This commit also avoids #3743 (GSSAPI build errors) on itself with cmake
  3.6 or above. That issue was fixed separately for all versions.
  
  Ref: #3744

- cmake: minor cleanup
  
  - Remove nneeded include_regular_expression.
    It was setting what is already a default.
  
  - Remove duplicated include.
  
  - Don't check for pre-3.0.0 CMake version.
    We already require at least 3.0.0, so it's just clutter.
  
  Ref: #3744

Steve Holme (8 Apr 2019)
- build-openssl.bat: Fixed support for OpenSSL v1.1.0+

- build-openssl.bat: Perfer the use of if statements rather than goto (where possible)

- build-openssl.bat: Perform the install for each build type directly after the build

- build-openssl.bat: Split the install of static and shared build types

- build-openssl.bat: Split the building of static and shared build types

- build-openssl.bat: Move the installation into a separate function

- build-openssl.bat: Move the build step into a separate function

- build-openssl.bat: Move the OpenSSL configuration into a separate function

- build-openssl.bat: Fixed the BUILD_CONFIG variable not being initialised
  
  Should the parent environment set this variable then the build might
  not be performed as the user intended.

Daniel Stenberg (8 Apr 2019)
- socks: fix error message

- config.d: clarify that initial : and = might need quoting [skip ci]
  
  Fixes #3738
  Closes #3749

- RELEASE-NOTES: synced
  
  bumped to 7.65.0 for next release

- socks5: user name and passwords must be shorter than 256
  
  bytes... since the protocol needs to store the length in a single byte field.
  
  Reported-by: XmiliaH on github
  Fixes #3737
  Closes #3740

- [Jakub Zakrzewski brought this change]

  test: urlapi: urlencode characters above 0x7f correctly

- [Jakub Zakrzewski brought this change]

  urlapi: urlencode characters above 0x7f correctly
  
  fixes #3741
  Closes #3742

- [Even Rouault brought this change]

  multi_runsingle(): fix use-after-free
  
  Fixes #3745
  Closes #3746
  
  The following snippet
  ```
  
  int main()
  {
      CURL* hCurlHandle = curl_easy_init();
      curl_easy_setopt(hCurlHandle, CURLOPT_URL, "http://example.com");
      curl_easy_setopt(hCurlHandle, CURLOPT_PROXY, "1");
      curl_easy_perform(hCurlHandle);
      curl_easy_cleanup(hCurlHandle);
      return 0;
  }
  ```
  triggers the following Valgrind warning
  
  ```
  ==4125== Invalid read of size 8
  ==4125==    at 0x4E7D1EE: Curl_llist_remove (llist.c:97)
  ==4125==    by 0x4E7EF5C: detach_connnection (multi.c:798)
  ==4125==    by 0x4E80545: multi_runsingle (multi.c:1451)
  ==4125==    by 0x4E8197C: curl_multi_perform (multi.c:2072)
  ==4125==    by 0x4E766A0: easy_transfer (easy.c:625)
  ==4125==    by 0x4E76915: easy_perform (easy.c:719)
  ==4125==    by 0x4E7697C: curl_easy_perform (easy.c:738)
  ==4125==    by 0x4008BE: main (in /home/even/curl/test)
  ==4125==  Address 0x9b3d1d0 is 1,120 bytes inside a block of size 1,600 free'd
  ==4125==    at 0x4C2ECF0: free (vg_replace_malloc.c:530)
  ==4125==    by 0x4E62C36: conn_free (url.c:756)
  ==4125==    by 0x4E62D34: Curl_disconnect (url.c:818)
  ==4125==    by 0x4E48DF9: Curl_once_resolved (hostip.c:1097)
  ==4125==    by 0x4E8052D: multi_runsingle (multi.c:1446)
  ==4125==    by 0x4E8197C: curl_multi_perform (multi.c:2072)
  ==4125==    by 0x4E766A0: easy_transfer (easy.c:625)
  ==4125==    by 0x4E76915: easy_perform (easy.c:719)
  ==4125==    by 0x4E7697C: curl_easy_perform (easy.c:738)
  ==4125==    by 0x4008BE: main (in /home/even/curl/test)
  ==4125==  Block was alloc'd at
  ==4125==    at 0x4C2F988: calloc (vg_replace_malloc.c:711)
  ==4125==    by 0x4E6438E: allocate_conn (url.c:1654)
  ==4125==    by 0x4E685B4: create_conn (url.c:3496)
  ==4125==    by 0x4E6968F: Curl_connect (url.c:4023)
  ==4125==    by 0x4E802E7: multi_runsingle (multi.c:1368)
  ==4125==    by 0x4E8197C: curl_multi_perform (multi.c:2072)
  ==4125==    by 0x4E766A0: easy_transfer (easy.c:625)
  ==4125==    by 0x4E76915: easy_perform (easy.c:719)
  ==4125==    by 0x4E7697C: curl_easy_perform (easy.c:738)
  ==4125==    by 0x4008BE: main (in /home/even/curl/test)
  ```
  
  This has been bisected to commit 2f44e94
  
  Fixes https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=14109
  Credit to OSS Fuzz

- pipelining: removed
  
  As previously planned and documented in DEPRECATE.md, all pipelining
  code is removed.
  
  Closes #3651

- [cclauss brought this change]

  tests: make Impacket (SMB server) Python 3 compatible
  
  Closes #3731
  Fixes #3289

Marcel Raad (6 Apr 2019)
- [Simon Warta brought this change]

  cmake: set SSL_BACKENDS
  
  This groups all SSL backends into the feature "SSL" and sets the
  SSL_BACKENDS analogue to configure.ac
  
  Closes https://github.com/curl/curl/pull/3736

- [Simon Warta brought this change]

  cmake: don't run SORT on empty list
  
  In case of an empty list, SORTing leads to the cmake error "list
  sub-command SORT requires list to be present."
  
  Closes https://github.com/curl/curl/pull/3736

Daniel Gustafsson (5 Apr 2019)
- [Eli Schwartz brought this change]

  configure: fix default location for fish completions
  
  Fish defines a vendor completions directory for completions that are not
  installed as part of the fish project itself, and the vendor completions
  are preferred if they exist. This prevents trying to overwrite the
  builtin curl.fish completion (or creating file conflicts in distro
  packaging).
  
  Prefer the pkg-config defined location exported by fish, if it can be
  found, and fall back to the correct directory defined by most systems.
  
  Closes #3723
  Reviewed-by: Daniel Gustafsson

Marcel Raad (5 Apr 2019)
- ftplistparser: fix LGTM alert "Empty block without comment"
  
  Removing the block is consistent with line 954/957.
  
  Closes https://github.com/curl/curl/pull/3732

- transfer: fix LGTM alert "Comparison is always true"
  
  Just remove the redundant condition, which also makes it clear that
  k->buf is always 0-terminated if this break is not hit.
  
  Closes https://github.com/curl/curl/pull/3732

Jay Satiro (4 Apr 2019)
- [Rikard Falkeborn brought this change]

  smtp: fix compiler warning
  
  - Fix clang string-plus-int warning.
  
  Clang 8 warns about adding a string to an int does not append to the
  string. Indeed it doesn't, but that was not the intention either. Use
  array indexing as suggested to silence the warning. There should be no
  functional changes.
  
  (In other words clang warns about "foo"+2 but not &"foo"[2] so use the
  latter.)
  
  smtp.c:1221:29: warning: adding 'int' to a string does not append to the
  string [-Wstring-plus-int]
        eob = strdup(SMTP_EOB + 2);
              ~~~~~~~~~~~~~~~~^~~~
  
  Closes https://github.com/curl/curl/pull/3729