CHANGES

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 Changelog

Version 7.55.1 (13 Aug 2017)

Daniel Stenberg (13 Aug 2017)
- RELEASE-NOTES/THANKS: curl 7.55.1 release time

- gitignore: ignore .xz now instead of .lzma

- [Sergei Nikulov brought this change]

 cmake: Threads detection update. ref: #1702
 
 Closes #1719

- ipv6_scope: support unique local addresses
 
 Fixes #1764
 Closes #1773
 Reported-by: James Slaughter

- [Alex Potapenko brought this change]

 curl/system.h: GCC doesn't define __ppc__ on PowerPC, uses __powerpc__
 
 Closes #1774

- test1448: verify redirect to IDN using URL
 
 Closes #1772

- [Salah-Eddin Shaban brought this change]

 redirect: skip URL encoding for host names
 
 This fixes redirects to IDN URLs
 
 Fixes #1441
 Closes #1762
 Reported by: David Lord

- test2032: mark as flaky (again)

- travis: test cmake build on tarball too
 
 Could've prevented #1755

- [Simon Warta brought this change]

 cmake: allow user to override CMAKE_DEBUG_POSTFIX
 
 Closes #1763

- connect-to.d: better language

- connect-to.d: clarified

- bagder/Curl_tvdiff_us: fix the math
 
 Regression since adef394ac5 (released in 7.55.0)
 
 Reported-by: Han Qiao
 Fixes #1769
 Closes #1771

- curl/system.h: add Oracle Solaris Studio
 
 Fixes #1752

- [Alessandro Ghedini brought this change]

 docs: fix typo funtion -> function
 
 Closes #1770

Alessandro Ghedini (12 Aug 2017)
- docs: fix grammar in CURL_SSLVERSION_MAX_DEFAULT description

- docs: fix typo stuct -> struct

Dan Fandrich (12 Aug 2017)
- test1447: require a curl with http support

Daniel Stenberg (11 Aug 2017)
- [Thomas Petazzoni brought this change]

 curl/system.h: support more architectures
 
 The long list of architectures in include/curl/system.h is annoying to
 maintain, and needs to be extended for each and every architecture to
 support.
 
 Instead, let's rely on the __SIZEOF_LONG__ define of the gcc compiler
 (we are in the GNUC condition anyway), which tells us if long is 4
 bytes or 8 bytes.
 
 This fixes the build of libcurl 7.55.0 on architectures such as
 OpenRISC or ARC.
 
 Closes #1766
 
 Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>

- test2033: this went flaky again
 
 Suspicion: when we enabled the threaded resolver by default.

- test1447: verifies the parse proxy fix in 6e0e152ce5c

- [Even Rouault brought this change]

 parse_proxy(): fix memory leak in case of invalid proxy server name
 
 Fixes the below leak:
 
 $ valgrind --leak-check=full ~/install-curl-git/bin/curl --proxy "http://a:b@/x" http://127.0.0.1
 curl: (5) Couldn't resolve proxy name
 ==5048==
 ==5048== HEAP SUMMARY:
 ==5048== in use at exit: 532 bytes in 12 blocks
 ==5048== total heap usage: 5,288 allocs, 5,276 frees, 445,271 bytes allocated
 ==5048==
 ==5048== 2 bytes in 1 blocks are definitely lost in loss record 1 of 12
 ==5048== at 0x4C2DB8F: malloc (in /usr/lib/valgrind/vgpreload_memcheck-amd64-linux.so)
 ==5048== by 0x4E6CB79: parse_login_details (url.c:5614)
 ==5048== by 0x4E6BA82: parse_proxy (url.c:5091)
 ==5048== by 0x4E6C46D: create_conn_helper_init_proxy (url.c:5346)
 ==5048== by 0x4E6EA18: create_conn (url.c:6498)
 ==5048== by 0x4E6F9B4: Curl_connect (url.c:6967)
 ==5048== by 0x4E86D05: multi_runsingle (multi.c:1436)
 ==5048== by 0x4E88432: curl_multi_perform (multi.c:2160)
 ==5048== by 0x4E7C515: easy_transfer (easy.c:708)
 ==5048== by 0x4E7C74A: easy_perform (easy.c:794)
 ==5048== by 0x4E7C7B1: curl_easy_perform (easy.c:813)
 ==5048== by 0x414025: operate_do (tool_operate.c:1563)
 ==5048==
 ==5048== 2 bytes in 1 blocks are definitely lost in loss record 2 of 12
 ==5048== at 0x4C2DB8F: malloc (in /usr/lib/valgrind/vgpreload_memcheck-amd64-linux.so)
 ==5048== by 0x4E6CBB6: parse_login_details (url.c:5621)
 ==5048== by 0x4E6BA82: parse_proxy (url.c:5091)
 ==5048== by 0x4E6C46D: create_conn_helper_init_proxy (url.c:5346)
 ==5048== by 0x4E6EA18: create_conn (url.c:6498)
 ==5048== by 0x4E6F9B4: Curl_connect (url.c:6967)
 ==5048== by 0x4E86D05: multi_runsingle (multi.c:1436)
 ==5048== by 0x4E88432: curl_multi_perform (multi.c:2160)
 ==5048== by 0x4E7C515: easy_transfer (easy.c:708)
 ==5048== by 0x4E7C74A: easy_perform (easy.c:794)
 ==5048== by 0x4E7C7B1: curl_easy_perform (easy.c:813)
 ==5048== by 0x414025: operate_do (tool_operate.c:1563)
 
 Fixes https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=2984
 Credit to OSS Fuzz for discovery
 
 Closes #1761

- RELEASE-NOTES: synced with 37f2195a9

- curlver: bump to 7.55.1

- openssl: fix "error: this statement may fall through"
 
 A gcc7 warning.

- [David Benjamin brought this change]

 openssl: remove CONST_ASN1_BIT_STRING.
 
 Just making the pointer as const works for the pre-1.1.0 path too.
 
 Closes #1759

- maketgz: remove old *.dist files before making the tarball
 
 To avoid "old crap" unintentionally getting shipped.
 
 Bug: https://curl.haxx.se/mail/lib-2017-08/0050.html
 Reported-by: Christian Weisgerber

Jay Satiro (10 Aug 2017)
- mkhelp.pl: allow executing this script directly
 
 - Enable execute permission (chmod +x)
 
 - Change interpreter to /usr/bin/env perl
 
 Ref: https://github.com/curl/curl/issues/1743

Daniel Stenberg (10 Aug 2017)
- configure: use the threaded resolver backend by default if possible
 
 Closes #1647

- cmake: move cmake_uninstall.cmake to CMake/
 
 Closes #1756

- metalink: fix error: ‘*’ in boolean context, suggest ‘&&’ instead

- dist: fix the cmake build by shipping cmake_uninstall.cmake.in too
 
 Fixes #1755

- travis: verify "make install"
 
 Help-by: Jay Satiro
 Closes #1753

Marcel Raad (10 Aug 2017)
- build: check out *.sln files with Windows line endings
 
 Visual Studio doesn't like LF line endings in solution files and always
 converts them to CRLF when doing changes to the solution. Notably, this
 affects the solutions in the release archive.
 
 Closes https://github.com/curl/curl/pull/1746

- gitignore: ignore top-level .vs folder
 
 This folder is generated when using the CMake build system from within
 Visual Studio.
 
 Closes https://github.com/curl/curl/pull/1746

Jay Satiro (10 Aug 2017)
- digest_sspi: Don't reuse context if the user/passwd has changed
 
 Bug: https://github.com/curl/curl/issues/1685
 Reported-by: paulharris@users.noreply.github.com
 
 Assisted-by: Isaac Boukris
 
 Closes https://github.com/curl/curl/pull/1742

Daniel Stenberg (9 Aug 2017)
- [Adam Sampson brought this change]

 dist: Add dictserver.py/negtelnetserver.py to EXTRA_DIST
 
 These weren't included in the 7.55.0 release, but are required in order
 to run the full test suite.
 
 Closes #1744

- [Adam Sampson brought this change]

 curl: do bounds check using a double comparison
 
 The fix for this in 8661a0aacc01492e0436275ff36a21734f2541bb wasn't
 complete: if the parsed number in num is larger than will fit in a long,
 the conversion is undefined behaviour (causing test1427 to fail for me
 on IA32 with GCC 7.1, although it passes on AMD64 and ARMv7). Getting
 rid of the cast means the comparison will be done using doubles.
 
 It might make more sense for the max argument to also be a double...
 
 Fixes #1750
 Closes #1749

- make install: add 8 missing man pages to the installation

- build: fix 'make install' with configure, install docs/libcurl/* too
 
 Broken since d24838d4da9faa
 
 Reported-by: Bernard Spil

Version 7.55.0 (9 Aug 2017)

Daniel Stenberg (9 Aug 2017)
- RELEASE-NOTES: curl 7.55.0

- THANKS: 20 new contributors in 7.55.0

- [Viktor Szakats brought this change]

 docs/comments: Update to secure URL versions
 
 Closes #1741

- configure: fix recv/send/select detection on Android
 
 ... since they now provide several functions as
 __attribute__((overloadable)), the argument detection logic need
 updates.
 
 Patched-by: destman at github
 
 Fixes #1738
 Closes #1739

Marcel Raad (8 Aug 2017)
- ax_code_coverage.m4: update to latest version
 
 This updates the script to aad5ad5fedb306b39f901a899b7bd305b66c418d
 from August 01, 2017. Notably, this removes the lconv version whitelist.
 
 Closes https://github.com/curl/curl/pull/1716

Daniel Stenberg (7 Aug 2017)
- test1427: verify command line parser integer overflow detection

- curl: detect and bail out early on parameter integer overflows
 
 Make the number parser aware of the maximum limit curl accepts for a
 value and return an error immediately if larger, instead of running an
 integer overflow later.
 
 Fixes #1730
 Closes #1736

- glob: do not continue parsing after a strtoul() overflow range
 
 Added test 1289 to verify.
 
 CVE-2017-1000101
 
 Bug: https://curl.haxx.se/docs/adv_20170809A.html
 Reported-by: Brian Carpenter

- tftp: reject file name lengths that don't fit
 
 ... and thereby avoid telling send() to send off more bytes than the
 size of the buffer!
 
 CVE-2017-1000100
 
 Bug: https://curl.haxx.se/docs/adv_20170809B.html
 Reported-by: Even Rouault
 
 Credit to OSS-Fuzz for the discovery

- [Even Rouault brought this change]

 file: output the correct buffer to the user
 
 Regression brought by 7c312f84ea930d8 (April 2017)
 
 CVE-2017-1000099
 
 Bug: https://curl.haxx.se/docs/adv_20170809C.html
 
 Credit to OSS-Fuzz for the discovery

- easy_events: make event data static
 
 First: this function is only used in debug-builds and not in
 release/real builds. It is used to drive tests using the event-based
 API.
 
 A pointer to the local struct is passed to CURLMOPT_TIMERDATA, but the
 CURLMOPT_TIMERFUNCTION calback can in fact be called even after this
 funtion returns, namely when curl_multi_remove_handle() is called.
 
 Reported-by: Brian Carpenter

- getparameter: avoid returning uninitialized 'usedarg'
 
 Fixes #1728

Marcel Raad (5 Aug 2017)
- [Isaac Boukris brought this change]

 gssapi: fix memory leak of output token in multi round context
 
 When multiple rounds are needed to establish a security context
 (usually ntlm), we overwrite old token with a new one without free.
 Found by proposed gss tests using stub a gss implementation (by
 valgrind error), though I have confirmed the leak with a real
 gssapi implementation as well.
 
 Closes https://github.com/curl/curl/pull/1733

- darwinssl: fix compiler warning
 
 clang complains:
 vtls/darwinssl.c:40:8: error: extra tokens at end of #endif directive
 [-Werror,-Wextra-tokens]
 
 This breaks the darwinssl build on Travis. Fix it by making this token
 a comment.
 
 Closes https://github.com/curl/curl/pull/1734

- CMake: fix CURL_WERROR for MSVC
 
 When using CURL_WERROR in MSVC builds, the debug flags were overridden
 by the release flags and /WX got added twice in debug mode.
 
 Closes https://github.com/curl/curl/pull/1715

Daniel Stenberg (4 Aug 2017)
- RELEASE-NOTES: synced with 561e9217c

- test1010: verify that #1718 is fixed
 
 ... by doing two transfers in nocwd mode and check that there's no
 superfluous CWD command.

- FTP: skip unnecessary CWD when in nocwd mode
 
 ... when reusing a connection. If it didn't do any CWD previously.
 
 Fixes #1718

Marcel Raad (4 Aug 2017)
- travis: explicitly specify dist
 
 This makes the builds more reproducible as travis is currently rolling
 out trusty as default dist [1]. Specifically, this avoids coverage
 check failures when trusty is used as seen in [2] until we figure out
 what's wrong.
 
 [1] https://blog.travis-ci.com/2017-07-11-trusty-as-default-linux-is-coming
 [2] https://github.com/curl/curl/pull/1692
 
 Closes https://github.com/curl/curl/pull/1725

Daniel Stenberg (4 Aug 2017)
- travis: BUILD_TYPE => T
 
 (to make the full line appear nicer on travis web UI)

- travis: add osx build with darwinssl
 
 Closes #1706

- darwin: silence compiler warnings
 
 With a clang pragma and three type fixes
 
 Fixes #1722

- BUILD.WINDOWS: mention buildconf.bat for builds off git

- darwinssl: fix curlssl_sha256sum() compiler warnings on first argument

- test130: verify comments in .netrc

- [Gisle Vanem brought this change]

 netrc: skip lines starting with '#'
 
 Bug: https://curl.haxx.se/mail/lib-2017-08/0008.html

Marcel Raad (3 Aug 2017)
- CMake: set MSVC warning level to 4
 
 The MSVC warning level defaults to 3 in CMake. Change it to 4, which is
 consistent with the Visual Studio and NMake builds. Disable level 4
 warning C4127 for the library and additionally C4306 for the test
 servers to get a clean CURL_WERROR build as that warning is raised in
 some macros in older Visual Studio versions.
 
 Ref: https://github.com/curl/curl/pull/1667#issuecomment-314082794
 Closes https://github.com/curl/curl/pull/1711

Daniel Stenberg (2 Aug 2017)
- CURLOPT_NETRC.3: fix typo in 7e48aa386156f9c2
 
 Reported-by: Viktor Szakats

- CURLOPT_NETRC.3: mention the file name on windows
 
 ... and CURLOPT_NETRC_FILE(3).

- travis: build osx with libressl too

- travis: build osx with openssl too

- tests/server/util: fix curltime mistake from 4dee50b9c80f9

Marcel Raad (1 Aug 2017)
- curl_threads: fix MSVC compiler warning
 
 Use LongToHandle to convert from long to HANDLE in the Win32
 implementation.
 This should fix the following warning when compiling with
 MSVC 11 (2012) in 64-bit mode:
 lib\curl_threads.c(113): warning C4306:
 'type cast' : conversion from 'long' to 'HANDLE' of greater size
 
 Closes https://github.com/curl/curl/pull/1717

Daniel Stenberg (1 Aug 2017)
- BUGS: improved phrasing about security bugs
 
 Reported-by: Max Dymond

- BUGS: clarify how to report security related bugs

- [Brad Spencer brought this change]

 multi: fix request timer management
 
 There are some bugs in how timers are managed for a single easy handle
 that causes the wrong "next timeout" value to be reported to the
 application when a new minimum needs to be recomputed and that new
 minimum should be an existing timer that isn't currently set for the
 easy handle. When the application drives a set of easy handles via the
 `curl_multi_socket_action()` API (for example), it gets told to wait the
 wrong amount of time before the next call, which causes requests to
 linger for a long time (or, it is my guess, possibly forever).
 
 Bug: https://curl.haxx.se/mail/lib-2017-07/0033.html

Jay Satiro (1 Aug 2017)
- curl_setup: Define CURL_NO_OLDIES for building libcurl
 
 .. to catch accidental use of deprecated error codes.
 
 Ref: https://github.com/curl/curl/issues/1688#issuecomment-316764237

Daniel Stenberg (1 Aug 2017)
- [Jeremy Tan brought this change]

 configure: fix the check for IdnToUnicode
 
 Fixes #1669
 Closes #1713

- http: fix response code parser to avoid integer overflow
 
 test 1429 and 1433 were updated to work with the stricter HTTP status line
 parser.
 
 Closes #1714
 Reported-by: Brian Carpenter

Jay Satiro (31 Jul 2017)
- [Dwarakanath Yadavalli brought this change]

 libcurl: Stop using error codes defined under CURL_NO_OLDIES
 
 Fixes https://github.com/curl/curl/issues/1688
 Closes https://github.com/curl/curl/pull/1712

- include.d: clarify --include is only for response headers
 
 Follow-up to 171f8de and de6de94.
 
 Bug: https://github.com/curl/curl/commit/de6de94#commitcomment-23370851
 Reported-by: Daniel Stenberg

Daniel Stenberg (30 Jul 2017)
- [jasjuang brought this change]

 cmake: support make uninstall
 
 Closes #1674

- RELEASE-NOTES: synced with 001701c47

Marcel Raad (29 Jul 2017)
- AppVeyor: now really use CURL_WERROR
 
 It was misspelled as CURL_ERROR in commit
 2d86e8d1286e0fbe3d811e2e87fa0b5e53722db4.
 
 Closes https://github.com/curl/curl/pull/1686

Jay Satiro (29 Jul 2017)
- tool_help: clarify --include is only for response headers
 
 Follow-up to 171f8de.
 
 Ref: https://github.com/curl/curl/issues/1704

- splay: fix signed/unsigned mismatch warning
 
 Follow-up to 4dee50b.
 
 Ref: https://github.com/curl/curl/pull/1693

Daniel Stenberg (28 Jul 2017)
- include.d: clarify that it concerns the response headers
 
 Reported-by: olesteban at github
 Fixes #1704

- [Johannes Schindelin brought this change]

 curl_rtmp: fix a compiler warning
 
 The headers of librtmp declare the socket as `int`, and on Windows, that
 disagrees with curl_socket_t.
 
 Bug: #1652
 
 Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>

- test1323: verify curlx_tvdiff

- timeval: struct curltime is a struct timeval replacement
 
 ... to make all libcurl internals able to use the same data types for
 the struct members. The timeval struct differs subtly on several
 platforms so it makes it cumbersome to use everywhere.
 
 Ref: #1652
 Closes #1693

- darwinssl: fix variable type mistake (regression)
 
 ... which made --tlsv1.2 not work because it would blank the max tls
 version variable.
 
 Reported-by: Nick Miyake
 Bug: #1703

- multi: mention integer overflow risk if using > 500 million sockets
 
 Reported-by: ovidiu-benea@users.noreply.github.com
 
 Closes #1675
 Closes #1683

- checksrc: escape open brace in regex
 
 ... to silence warning.

Kamil Dudka (20 Jul 2017)
- nss: fix a possible use-after-free in SelectClientCert()
 
 ... causing a SIGSEGV in showit() in case the handle used to initiate
 the connection has already been freed.
 
 This commit fixes a bug introduced in curl-7_19_5-204-g5f0cae803.
 
 Reported-by: Rob Sanders
 Bug: https://bugzilla.redhat.com/1436158

- nss: unify the coding style of nss_send() and nss_recv()
 
 No changes in behavior intended by this commit.

Marcel Raad (18 Jul 2017)
- tests/server/resolve.c: fix deprecation warning
 
 MSVC warns that gethostbyname is deprecated. Always use getaddrinfo
 instead to fix this when IPv6 is enabled, also for IPv4 resolves. This
 is also consistent with what libcurl does.
 
 Closes https://github.com/curl/curl/pull/1682

Jay Satiro (17 Jul 2017)
- darwinssl: fix pinnedpubkey build error
 
 - s/SessionHandle/Curl_easy/
 
 Bug: https://github.com/curl/curl/commit/eb16305#commitcomment-23035670
 Reported-by: Gisle Vanem

Marcel Raad (16 Jul 2017)
- rtspd: fix GCC warning after MSVC warning fix
 
 Older GCC warns:
 /tests/server/rtspd.c:1194:10: warning: missing braces around
 initializer [-Wmissing-braces]
 
 Fix this by using memset instead of an initializer.

- libtest: fix MSVC warning C4706
 
 With warning level 4, MSVC warns about assignments within conditional
 expressions. Change the while loop to a do-while loop to fix this. This
 change is also consistent with CODE_STYLE.md.

- sockfilt: suppress conversion warning with explicit cast
 
 MSVC warns when implicitly casting -1 to unsigned long.

- rtspd: fix MSVC level 4 warning
 
 warning C4701: potentially uninitialized local variable 'req' used

- winbuild: re-enable warning C4127 for curl tool
 
 Disabled in cda19a345f6970e22fe8b7a808aeb8f086a21eac. It only needs to
 be disabled for libcurl.

- winbuild: build with warning level 4
 
 This is consistent with 7bc64561a2e63ca93e4b0b31d350773ba80955c2, which
 changed the warning level from 3 to 4 for the Visual Studio project
 files. But disable the level 4 warning C4127 "conditional expression is
 constant", as that one is issued by older versions of the Windows SDK
 as well as curl itself under some circumstances.
 
 Closes https://github.com/curl/curl/pull/1667

Jay Satiro (12 Jul 2017)
- [Max Dymond brought this change]

 travis: install libidn2
 
 Install libidn2 to increase test coverage (IDN tests)
 
 Closes https://github.com/curl/curl/pull/1673

Marcel Raad (12 Jul 2017)
- travis: enable warnings also in release mode
 
 ... to get warnings also on Linux/GCC and OSX/clang.
 
 Closes https://github.com/curl/curl/pull/1666

Daniel Stenberg (12 Jul 2017)
- [Max Dymond brought this change]

 travis: install libssh2
 
 Install libssh2 to increase test coverage (SFTP, SCP)

Marcel Raad (12 Jul 2017)
- system.h: include winsock2.h before windows.h
 
 ... to avoid compiler warnings if the user doesn't want
 WIN32_LEAN_AND_MEAN.

- build: remove WIN32_LEAN_AND_MEAN from individual build systems
 
 It's defined for all build systems in curl_setup.h since commit
 beb08481d01a07a8b10938b1078a5e298b1c2912. This caused macro
 redefinition warnings in the configure builds.
 
 Closes https://github.com/curl/curl/pull/1677

Jay Satiro (11 Jul 2017)
- ISSUE_TEMPLATE: Add a comment not to file security issues on github

Marcel Raad (11 Jul 2017)
- curl_setup: always define WIN32_LEAN_AND_MEAN on Windows
 
 Make sure to always define WIN32_LEAN_AND_MEAN before including any
 Windows headers to avoid pulling in unnecessary headers. This avoids
 unnecessary macro clashes and compiler warnings.
 
 Ref: https://github.com/curl/curl/issues/1562
 Closes https://github.com/curl/curl/pull/1672

Jay Satiro (11 Jul 2017)
- strerror: Preserve Windows error code in some functions
 
 This is a follow-up to af02162 which removed (SET_)ERRNO macros. That
 commit was an earlier draft that I committed by mistake, which was then
 remedied by a5834e5 and e909de6, and now this commit. With this commit
 there is now no difference between the current code and the changes that
 were approved in the final draft.
 
 Thanks-to: Max Dymond, Marcel Raad, Daniel Stenberg, Gisle Vanem
 Ref: https://github.com/curl/curl/pull/1589

Marcel Raad (10 Jul 2017)
- [Max Dymond brought this change]

 tests: Fix up issues with errno in test files
 
 Closes https://github.com/curl/curl/pull/1671

Daniel Stenberg (10 Jul 2017)
- errno: fix non-windows builds after af0216251b94e7

- [Ryan Winograd brought this change]

 make: fix docs build on OpenBSD
 
 Ref: #1591

Marcel Raad (10 Jul 2017)
- ldap: fix MinGW compiler warning
 
 ldap_bind_s is marked as deprecated in w32api's winldap.h shipping with
 the latest original MinGW, resulting in compiler warnings since commit
 f0fe66f13c93d3d0af45d9fb1231c9164e0f9dc8. Fix this for the non-SSPI
 case by using ldap_simple_bind_s again instead of ldap_bind_s with
 LDAP_AUTH_SIMPLE.
 
 Closes https://github.com/curl/curl/pull/1664

- curl-compilers.m4: disable warning spam with Cygwin's clang
 
 When building with Cygwin or MinGW, libtool uses a wrapper executable
 instead of a wrapper script [1], which is written in C and throws
 missing-variable-declarations warnings. Don't enable these warnings on
 Cygwin and MinGW in order to avoid warnings for every executable built,
 which spams the test suite output when using Cygwin's clang.
 
 [1] https://www.gnu.org/software/libtool/manual/html_node/Wrapper-executables.html
 
 Closes https://github.com/curl/curl/pull/1665

Jay Satiro (10 Jul 2017)
- curl_setup_once: Remove ERRNO/SET_ERRNO macros
 
 Prior to this change (SET_)ERRNO mapped to GetLastError/SetLastError
 for Win32 and regular errno otherwise.
 
 I reviewed the code and found no justifiable reason for conflating errno
 on WIN32 with GetLastError/SetLastError. All Win32 CRTs support errno,
 and any Win32 multithreaded CRT supports thread-local errno.
 
 Fixes https://github.com/curl/curl/issues/895
 Closes https://github.com/curl/curl/pull/1589

- tool_getparam: fix potentially uninitialized err

Marcel Raad (9 Jul 2017)
- smb: rename variable to fix shadowing warning
 
 GCC 4.6.3 on travis complains:
 smb.c: In function ‘get_posix_time’:
 smb.c:725:13: error: declaration of ‘time’ shadows a global declaration
 [-Werror=shadow]
 
 Fix this by renaming the variable.

- tool_cb_wrt: fix variable shadowing warning
 
 GCC 4.4 complains:
 tool_cb_wrt.c:81: error: declaration of ‘isatty’ shadows a global
 declaration
 /usr/include/unistd.h:782: error: shadowed declaration is here
 
 Fix this by renaming the variable.
 
 Closes https://github.com/curl/curl/pull/1661

Daniel Stenberg (8 Jul 2017)
- RELEASE-NOTES: synced with be2c999b8

- travis: install stunnel

- valgrind.supp: supress OpenSSL false positive seen on travis

- travis: detect and use valgrind for normal builds
 
 Closes #1653

- travis: add SMB, DICT, TELNET torture to coverage test

- [Paul Harris brought this change]

 cmake: offer CMAKE_DEBUG_POSTFIX when building with MSVC
 
 Removes BUILD_RELEASE_DEBUG_DIRS since it wasn't used anywhere.
 
 Closes #1649

- CURLOPT_POSTFIELDS.3: explain the 100-continue magic better

- [Max Dymond brought this change]

 test1452: add telnet negotiation
 
 Add a basic telnet server for negotiating some telnet options before
 echoing back any data that's sent to it.
 
 Closes #1645

- travis: do more tests in the coverage run
 
 I added a selection of torture and event tests that run "fast enough"

- curl_easy_escape.3: mention the (lack of) encoding
 
 Fixes #1612
 Reported-by: Jeroen Ooms

- [Gisle Vanem brought this change]

 memdebug: don't setbuf() if the file open failed
 
 Bug: https://github.com/curl/curl/issues/828#issuecomment-313475151

- appveyor: enable CURL_WERROR on all builds

- cmake: add CURL_WERROR for enabling "warning as errors"

- [Hannes Magnusson brought this change]

 cmake: remove spurious "-l" from linker flags
 
 Fixes #1552

- test506: skip if threaded-resolver

- runtests: support "threaded-resolver" as a feature
 
 ... to let tests require it or skip if present

- asyn-thread.c: fix unused variable warnings on macOS

- http: s/TINY_INITIAL_POST_SIZE/EXPECT_100_THRESHOLD
 
 Make the name reflect its use better, and add a short comment describing
 what it's for.

- cmake: if inet_pton is used, bump _WIN32_WINNT
 
 ... and make sure inet_pton is always checked for when *not* using Windows,
 which is a regression from 4fc6ebe18.
 
 Idea-by: Sergei Nikulov

- select.h: avoid macro redefinition harder
 
 ... by checking the POLLIN define, as the header file checks don't work
 on Windows.

- inet_pton: fix include on windows to get prototype
 
 inet_pton() exists on Windows and gets used by our cmake builds. Make
 sure the correct header file is included to avoid compiler warnings.
 
 Closes #1639

- TODO: 1.10 auto-detect proxy
 
 Closes #1572

- TODO: HTTP proxy CONNECT is non-blocking now

- cmake: fix send/recv argument scanner for windows
 
 ... by simply trying the Windows argument types first.
 
 Fixes #1640

- RELEASE-NOTES: synced with 596cfb6c0

- [Gisle Vanem brought this change]

 smb: add support for CURLOPT_FILETIME
 
 Bug: https://curl.haxx.se/mail/lib-2017-07/0005.html
 
 Closes #1643

- travis: install nghttp2 on linux builds
 
 Closes #1642

- [Gisle Vanem brought this change]

 smb: fix build for djgpp/MSDOS
 
 bug: https://curl.haxx.se/mail/lib-2017-07/0005.html

- configure: try ldap/lber in reversed order first
 
 When scanning for which LDAP libraries to use, try the -lldap -llber
 combination before the reversed order since it has a greater chance of
 working when linking with libcurl statically.
 
 Fixes #1619
 Closes #1634
 Reported-by: David E. Narváez

- configure: remove checks for 5 functions never used
 
 fork, getprotobyname, inet_addr, perror, uname
 
 closes #1638

- dist: add SMB python deps into the tarball

- [Max Dymond brought this change]

 test1451: add SMB support to the testbed
 
 Add test 1451 which does some very basic SMB testing using the impacket
 SMB server.
 
 Closes #1630

- [Max Dymond brought this change]

 test: add impacket for SMB testing
 
 Import impacket 0.9.15 for use in SMB testing. This was generated by
 doing "pip2.7 install -t . impacket"
 
 Unnecessary files for current testing were deleted.

- travis.yml: use --enable-werror on debug builds
 
 ... to better detect and fault on compiler warnings/errors
 
 Closes #1637

- tool_sleep: typecast to avoid macos compiler warning
 
 tool_sleep.c:54:24: error: implicit conversion loses integer precision:
 'long' to '__darwin_suseconds_t' (aka 'int')
 [-Werror,-Wshorten-64-to-32]

- [Martin Kepplinger brought this change]

 timeval.c: Use long long constant type for timeval assignment
 
 On a 64 bit host, sparse says:
 
 timeval.c:148:15: warning: constant 0x7fffffffffffffff is so big it is long
 timeval.c:149:12: warning: constant 0x7fffffffffffffff is so big it is long
 
 so let's use long long constant types in order to prevent undesired overflow
 failures.
 
 Bug: https://curl.haxx.se/mail/lib-2017-07/0003.html
 
 Closes #1636
 
 Signed-off-by: Martin Kepplinger <martink@posteo.de>

- url: make the original string get used on subsequent transfers
 
 ... since CURLOPT_URL should follow the same rules as other options:
 they remain set until changed or cleared.
 
 Added test 1551 to verify.
 
 Fixes #1631
 Closes #1632
 Reported-by: Pavel Rochnyak

- [Johannes Schindelin brought this change]

 gtls: fix build when sizeof(long) < sizeof(void *)
 
 - Change gnutls pointer/int macros to pointer/curl_socket_t.
 Prior to this change they used long type as well.
 
 The size of the `long` data type can be shorter than that of pointer
 types. This is the case most notably on Windows.
 
 If C99 were acceptable, we could simply use `intptr_t` here. But we
 want to retain C89 compatibility.
 
 Simply use the trick of performing pointer arithmetic with the NULL
 pointer: to convert an integer `i` to a pointer, simply take the
 address of the `i`th element of a hypothetical character array
 starting at address NULL. To convert back, simply cast the pointer
 difference.
 
 Thanks to Jay Satiro for the initial modification to use curl_socket_t
 instead of int/long.
 
 Closes #1617
 
 Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>

- [Ryan Winograd brought this change]

 unit1399: fix integer overflow
 
 Bug: #1616
 Closes #1633

- [Per Malmberg brought this change]

 cmake: Added compatibility options for older Windows versions
 
 CURL_STATIC_CRT and ENABLE_INET_PTON
 
 Closes #1621

- unit1399: add logging to time comparison
 
 ... to enable tracking down why autobuilds fail on this
 
 Bug: #1616

- make: build the docs subdir only from within src
 
 ... and don't build at all in include
 
 Prompted-by-work-by: Simon Warta
 Ref: #1590
 Closes #1591

- [Max Dymond brought this change]

 test1450: fix up DICT server in torture mode
 
 As per https://github.com/curl/curl/pull/1615, the DICT server is a
 little spammy in torture mode due to the sockets being torn down
 unexpectedly. Fix this by adding some error handling to the handling
 function.
 
 Closes #1629

- [Max Dymond brought this change]

 test1450: add simple testing for DICT
 
 Add a new server which provides a DICT interface. This is intended to
 begin coverage testing for lib/dict.c
 
 Closes #1615

- [Dan Fandrich brought this change]

 test1521: fix out-of-tree builds, broken with 467da3af
 
 The test.h file is no longer in the same directory as the source file,
 so that directory needs to be added to the include path.
 
 Fixes #1627
 Closes #1628

- [Max Dymond brought this change]

 http2: handle PING frames
 
 Add a connection check function to HTTP2 based off RTSP. This causes
 PINGs to be handled the next time the connection is reused.
 
 Closes #1521

- [Max Dymond brought this change]

 handler: refactor connection checking
 
 Add a new type of callback to Curl_handler which performs checks on
 the connection. Alter RTSP so that it uses this callback to do its
 own check on connection health.

- [dmitrykos brought this change]

 openssl: improve fallback seed of PRNG with a time based hash
 
 Fixes #1620

- [Ryan Winograd brought this change]

 progress: prevent resetting t_starttransfer
 
 Prevent `Curl_pgrsTime` from modifying `t_starttransfer` when invoked
 with `TIMER_STARTTRANSFER` more than once during a single request.
 
 When a redirect occurs, this is considered a new request and
 `t_starttransfer` can be updated to reflect the `t_starttransfer` time
 of the redirect request.
 
 Closes #1616
 
 Bug: https://github.com/curl/curl/pull/1602#issuecomment-310267370

- curl_strequal.3: fix typo in SYNOPSIS
 
 Reported-by: Jesse Chisholm
 
 Fixes #1623

- RELEASE-NOTES: synced with ce2c3ebda

Kamil Dudka (28 Jun 2017)
- curl --socks5-{basic,gssapi}: control socks5 auth
 
 Closes https://github.com/curl/curl/pull/1454

- CURLOPT_SOCKS5_AUTH: allowed methods for SOCKS5 proxy auth
 
 If libcurl was built with GSS-API support, it unconditionally advertised
 GSS-API authentication while connecting to a SOCKS5 proxy. This caused
 problems in environments with improperly configured Kerberos: a stock
 libcurl failed to connect, despite libcurl built without GSS-API
 connected fine using username and password.
 
 This commit introduces the CURLOPT_SOCKS5_AUTH option to control the
 allowed methods for SOCKS5 authentication at run time.
 
 Note that a new option was preferred over reusing CURLOPT_PROXYAUTH
 for compatibility reasons because the set of authentication methods
 allowed by default was different for HTTP and SOCKS5 proxies.
 
 Bug: https://curl.haxx.se/mail/lib-2017-01/0005.html
 Closes https://github.com/curl/curl/pull/1454

- socks: deduplicate the code for auth request

- socks: use proxy_user instead of proxy_name
 
 ... to make it obvious what the data is used for

Daniel Stenberg (27 Jun 2017)
- libtest/make: generate lib1521.c
 
 ... instead of having the generated code checked in. This saves space in
 the tarball but primarily automatically adapts to newly added options.
 
 Closes #1614

Jay Satiro (26 Jun 2017)
- tool_getparam: fix memory leak on test 1147 OOM (torture tests)
 
 Bug: https://github.com/curl/curl/pull/1486#issuecomment-310926872
 Reported-by: Dan Fandrich

Dan Fandrich (25 Jun 2017)
- test1537: fixed memory leak on OOM

Marcel Raad (25 Jun 2017)
- test1521: fix compiler warnings
 
 The integer literal 3123123123 doesn't fit into a 32-bit signed
 integer, so GCC with 32-bit long warns in C90 mode:
 this decimal constant is unsigned only in ISO C90 [enabled by default]
 Fix this by using ULONG_MAX, which should fit in any curl_off_t and has
 the correct suffix to not issue any warnings.
 Also adds the missing CURLOPT_REQUEST_TARGET from commit
 9b167fd090f596eac828817d48c247eeae53407f.
 
 Closes https://github.com/curl/curl/pull/1611

Daniel Stenberg (24 Jun 2017)
- curl/system.h: add check for XTENSA for 32bit gcc
 
 Reported-by: Neil Kolban
 Fixes: 1598

- [Henrik S. Gaßmann brought this change]

 winbuild: fix boringssl build
 
 Compile with `WIN32_LEAN_AND_MEAN` which prevents `windows.h` from
 including too much clutter including `wincrypt.h` which in turn contains
 some preprocessor macros that clash with boringssl symbols.
 
 Detect boringssl by checking the existance of `is_boringssl.h` and set
 the corresponding `HAVE_BORINGSSL` for compilation which is used in
 `ldap.c` to undefine the evil macros.
 
 Closes #1610

- progress: progress.timespent needs to be us
 
 follow-up to 64ed44a815e4e to fix test 500 failures

Marcel Raad (24 Jun 2017)
- curl-compilers.m4: fix unknown-warning-option on Apple clang
 
 Since 5598b0bd63f690c151074494ce47ef872f004ab4, clang -v is used to
 detect the clang version. The version number was expected to come after
 the word "version". For Apple clang, this doesn't work as it has its
 own versioning scheme.
 The version number is now first searched after the string
 "based on LLVM". This works for Apple clang before version 7, and also
 for e.g. Ubuntu's clang up to version 3.7. If it's not found and the
 version string contains "Apple LLVM version", clang version 3.7 is
 assumed, which is the version that comes with Xcode 7. Otherwise, the
 version number is still expected after the word "version", which works
 for very old Apple clang versions.
 
 Ref: https://trac.macports.org/wiki/XcodeVersionInfo
 Fixes https://github.com/curl/curl/issues/1606
 Closes https://github.com/curl/curl/pull/1607

Daniel Stenberg (24 Jun 2017)
- progress: fix "time spent", broke in adef394ac

- CURLINFO_REDIRECT_URL.3: mention the CURLOPT_MAXREDIRS case
 
 ... supported since 7.54.1

- maketgz: switch to -6e for xz
 
 To reduce the memory requirement for decompress, and still do almost as
 good compression as with -9e.
 
 Pointed-out-by: Dan Fandrich

- libtest/Makefile: remove unused lib1541 variables

- CONTRIBUTE.md: mention the out-of-tree build test too

- maketgz: switch to xz instead of lzma
 
 The compressed output size seems to be a tad bit smaller, but generally
 xz seems more preferred these days and is used directly by for example
 gentoo instead of bz2.
 
 "Users of LZMA Utils should move to XZ Utils" =>
 https://tukaani.org/lzma/
 
 Closes #1604

- --request-target: instead of --strip-path-slash
 
 ... and CURLOPT_REQUEST_TARGET instead of CURLOPT_STRIP_PATH_SLASH.
 
 This option instead provides the full "alternative" target to use in the
 request, instead of extracting the path from the URL.
 
 Test 1298 and 1299 updated accordingly.
 
 Idea-by: Evert Pot
 Suggestion: https://daniel.haxx.se/blog/2017/06/19/options-with-curl/comment-page-1/#comment-18373
 
 Closes #1593

Marcel Raad (21 Jun 2017)
- lib1521: fix missing-variable-declarations clang warnings
 
 Declare TU-local variables static.

- travis: enable typecheck-gcc warnings
 
 - switch debug and release configurations so that we get an optimized
 build with GCC 4.3+ as required by typecheck-gcc
 - enable warnings-as-errors for release builds
 (which have warnings disabled)
 
 Closes https://github.com/curl/curl/pull/1595

- typecheck-gcc: add support for CURLINFO_OFF_T
 
 typecheck-gcc expected curl_socket_t instead of curl_off_t arguments
 for CURLINFO_OFF_T. Detected by test1521, unfortunately only when run
 locally.
 
 Closes https://github.com/curl/curl/pull/1592

Daniel Stenberg (21 Jun 2017)
- [Simon Warta brought this change]

 ci: whitelist branches to avoid testing feature branches twice

- [Gisle Vanem brought this change]

 lib: fix the djgpp build
 
 Bug: https://github.com/curl/curl/commit/73a2fcea0b4adea6ba342cd7ed1149782c214ae3#commitcomment-22655993

Marcel Raad (20 Jun 2017)
- if2ip: fix compiler warning in ISO C90 mode
 
 remote_scope_id is only used when both HAVE_SOCKADDR_IN6_SIN6_SCOPE_ID
 and ENABLE_IPV6 are defined instead of only one of them.

Daniel Stenberg (20 Jun 2017)
- travis: do the distcheck test build out-of-tree as well

- http: add --strip-path-slash and CURLOPT_STRIP_PATH_SLASH
 
 ... to enable sending "OPTIONS *" which wasn't possible previously.
 
 This option currently only works for HTTP.
 
 Added test cases 1298 + 1299 to verify
 
 Fixes #1280
 Closes #1462

- test1521: test getinfo's OFF_T types too
 
 Closes #1588

- lib1521: add curl_easy_getinfo calls to the test set
 
 Also added return value checks to make sure no unexpected return codes
 are used.

- [Simon Warta brought this change]

 automake: use $(MKHELP) variable instead if constant mkhelp.pl
 
 this improves symmetry with the rule above

- [Simon Warta brought this change]

 mkhelp.pl: fix script name in usage text

- RELEASE-NOTES: synced with 3b80d3ca4

- getinfo: return sizes as curl_off_t
 
 This change introduces new alternatives for the existing six
 curl_easy_getinfo() options that return sizes or speeds as doubles. The
 new versions are named like the old ones but with an appended '_T':
 
 CURLINFO_CONTENT_LENGTH_DOWNLOAD_T
 CURLINFO_CONTENT_LENGTH_UPLOAD_T
 CURLINFO_SIZE_DOWNLOAD_T
 CURLINFO_SIZE_UPLOAD_T
 CURLINFO_SPEED_DOWNLOAD_T
 CURLINFO_SPEED_UPLOAD_T
 
 Closes #1511

- PIPELINING_SERVER_BL: cleanup the internal list use
 
 The list was freed incorrectly since the llist refactor of
 cbae73e1dd959. Added test 1550 to verify that it works and avoid future
 regressions.
 
 Reported-by: Pascal Terjan
 
 Fixes #1584
 Closes #1585

- http2: fix OOM crash
 
 torture mode with test 1021 found it

- CURLOPT_PREQUOTE.3: spellfix man page reference

Marcel Raad (18 Jun 2017)
- http_proxy: fix build with http and proxy
 
 After deff7de0eb0e22d2d142b96b9cc84cd8db5d2a48, the build without
 CURL_DISABLE_PROXY and CURL_DISABLE_HTTP was failing because of missing
 includes.

- http_proxy: fix compiler warning
 
 With CURL_DISABLE_PROXY or CURL_DISABLE_HTTP, GCC complained about a
 missing prototype for Curl_connect_free.

Daniel Stenberg (18 Jun 2017)
- TODO: update the TOC too

- TODO: implement support for CURLOPT_PREQUOTE with SFTP
 
 ... also updated the CURLOPT_PREQUOTE.3 man page to mention the correct
 protocol support.
 
 Closes #1514

- tool_wrte_cb: remove check for config == NULL
 
 ... as it really cannot have reached this far with config being NULL,
 thus this is unnecesary and misleading.
 
 Bug: https://news.ycombinator.com/item?id=14577585 and
 https://daniel.haxx.se/blog/2017/06/17/curl-doesnt-spew-binary-anymore/comment-page-1/#comment-18356
 
 Forwarded-to-us-by: Jakub Wilk

- curl: prevent binary output spewed to terminal
 
 ... unless "--output -" is used. Binary detection is done by simply
 checking for a binary zero in early data.
 
 Added test 1425 1426 to verify.
 
 Closes #1512

Marcel Raad (16 Jun 2017)
- Makefile.m32: enable -W for MinGW32 build
 
 The configure-based build also has this in addition to -Wall.
 
 Closes https://github.com/curl/curl/pull/1578

- curl-compilers.m4: enable comma clang warning
 
 It usually warns when using commas instead of semicolons or other
 operators by accident.
 
 Closes https://github.com/curl/curl/pull/1578

- curl-compilers.m4: enable missing-variable-declarations clang warning
 
 It usually warns when forgetting to declare TU-local variables static.
 
 Closes https://github.com/curl/curl/pull/1578

- curl-compilers.m4: enable double-promotion warning
 
 Enable -Wdouble-promotion for both GCC and clang. It warns on implicit
 promotion from float to double.
 
 Closes https://github.com/curl/curl/pull/1578

- curl-compilers.m4: enable vla warning for clang
 
 Previously, that warning was only implicitly active in C90 mode.
 Enable it unconditionally as already done for GCC.
 
 Closes https://github.com/curl/curl/pull/1578

Daniel Stenberg (16 Jun 2017)
- http-proxy: fix chunked-encoded CONNECT responses
 
 Regression since 5113ad0424.
 
 ... and remove 'flaky' from test 1061 again
 
 Closes #1579

- http-proxy: deal with EAGAIN
 
 ... the previous code would reset the header length wrongly (since
 5113ad0424). This makes test 1060 reliable again.
 
 Also: make sws send even smaller chunks of data to increase the
 likeliness of this happening.

- libtest/libntlmconnect: fix compiler warnings from f94fcdb

- [Jay Satiro brought this change]

 HTTPS-Proxy: don't offer h2 for https proxy connections
 
 Bug: https://github.com/curl/curl/issues/1254
 
 Closes #1546

- tests: stabilize test 2032 and 2033
 
 Both these tests run the same underlying test code: libntlmconnect.c -
 this test code made some assumptions about socket ordering when it used
 curl_easy_fdset() and when we changed timing or got accidental changes
 in libcurl the tests would fail.
 
 The tests verify that the different transfers keep using the same
 connections, which I now instead made sure by adding the number of bytes
 each transfer gets and then verifies that they always get the same
 amount as when these tests worked.
 
 Closes #1576

- test1148: verify the -# progressbar
 
 Closes #1569

- test1061: mark as flaky
 
 Fails intermittently on travis builds since a few days. Likely due to
 5113ad0424.

Jay Satiro (16 Jun 2017)
- url: refactor the check for Windows drive letter in path
 
 - Move the logic to detect a Windows drive letter prefix
 (eg c: in c:foo) into a function-like macro.
 
 Closes https://github.com/curl/curl/pull/1571

- mk-ca-bundle.pl: Check curl's exit code after certdata download
 
 - No longer allow partial downloads of certdata.
 
 Prior to this change partial downloads were (erroneously?) allowed since
 only the server code was checked to be 200.
 
 Bug: https://github.com/curl/curl/pull/1577
 Reported-by: Matteo B.

Daniel Stenberg (16 Jun 2017)
- dist: add the fuzz dir to the tarball

- configure: disable nghttp2 too if HTTP has been disabled

- http-proxy: fix build with --disable-proxy or --disable-http
 
 Reported-by: Dan Fandrich

- fuzz/README: document how to build
 
 Fixes #1476

- [Frederik B brought this change]

 fuzz: corpora file structure, initial commit

- [Frederik B brought this change]

 fuzz: bring oss-fuzz initial code converted to C89

- http-proxy: only attempt FTP over HTTP proxy
 
 ... all other non-HTTP protocol schemes are now defaulting to "tunnel
 trough" mode if a HTTP proxy is specified. In reality there are no HTTP
 proxies out there that allow those other schemes.
 
 Assisted-by: Ray Satiro, Michael Kaufmann
 
 Closes #1505

- TODO: the generated include file is gone
 
 ... since commit 73a2fcea0b

- curl_setup.h: error out on CURL_WANTS_CA_BUNDLE_ENV use
 
 ... to make it really apparent if there's any user using this on purpose.
 
 Suggested-by: Jay Satiro
 
 Closes #1542

- lib/curl_setup.h: remove CURL_WANTS_CA_BUNDLE_ENV
 
 When this define was set, libcurl would check the environment variable
 named CURL_CA_BUNDLE at run-time and use that CA cert bundle. This
 feature was only defined by the watcom and m32 makefiles and caused
 inconsistent behaviours among libcurls built on different platforms.
 
 The curl tool does already feature its own similar logic and the library
 does not really need it, and it isn't documented libcurl behavior. So
 this change removes it.
 
 Ref: #1538

- test1147: verify -H on a file

- curl: allow --header and --proxy-header read from file
 
 So many headers can be provided as @filename.
 
 Suggested-by: Timothe Litt
 
 Closes #1486

- RELEASE-NOTES: synced with 2ad80eec5

- curl/curlver.h: start working on 7.55.0

- http-proxy: do the HTTP CONNECT process entirely non-blocking
 
 Mentioned as a problem since 2007 (8f87c15bdac63) and of course it
 existed even before that.
 
 Closes #1547

- progress: let "current speed" be UL + DL speeds combined
 
 Bug #1556
 Reported-by: Paul Harris
 Closes #1559

Marcel Raad (14 Jun 2017)
- system.h: fix MinGW build
 
 CURLSYS_PULL_WS2TCPIP_H got renamed to CURL_PULL_WS2TCPIP_H in commit
 73a2fcea0b4adea6ba342cd7ed1149782c214ae3.

Daniel Stenberg (14 Jun 2017)
- timers: store internal time stamps as time_t instead of doubles
 
 This gives us accurate precision and it allows us to avoid storing "no
 time" for systems with too low timer resolution as we then bump the time
 up to 1 microsecond. Should fix test 573 on windows.
 
 Remove the now unused curlx_tvdiff_secs() function.
 
 Maintains the external getinfo() API with using doubles.
 
 Fixes #1531

- dist: make the hugehelp.c not get regenerated unnecessarily
 
 The maketgz script now makes sure the generated hugehelp.c file in the
 tarball is newer than the generated curl.1 man page, so that it doesn't
 have to get unnecessarily rebuilt first thing in a typical build. It
 thus also removes the need for perl to build off a plain release
 tarball.
 
 Fixes #1565

- includes: remove curl/curlbuild.h and curl/curlrules.h
 
 Rely entirely on curl/system.h now.
 
 Introduced in Aug 2008 with commit 14240e9e109f. Now gone.
 
 Fixes #1456

Version 7.54.1 (14 Jun 2017)

Daniel Stenberg (14 Jun 2017)
- release: 7.54.1

Dan Fandrich (13 Jun 2017)
- mk-lib1521.pl: updated to match the test changes in 916ec30a

Daniel Stenberg (13 Jun 2017)
- [Stuart Henderson brought this change]

 libressl: OCSP and intermediate certs workaround no longer needed
 
 lib/vtls/openssl.c has a workaround for a bug with OCSP responses signed
 by intermediate certs, this was fixed in LibreSSL in
 https://github.com/libressl-portable/openbsd/commit/912c64f68f7ac4f225b7d1fdc8fbd43168912ba0
 
 Bug: https://curl.haxx.se/mail/lib-2017-06/0038.html

- url: fix buffer overwrite with file protocol (CVE-2017-9502)
 
 Bug: https://github.com/curl/curl/issues/1540
 Advisory: https://curl.haxx.se/docs/adv_20170614.html
 
 Assisted-by: Ray Satiro
 Reported-by: Marcel Raad

- urlglob: fix division by zero
 
 The multiply() function that is used to avoid integer overflows, was
 itself reason for a possible division by zero error when passed a
 specially formatted glob.
 
 Reported-by: GwanYeong Kim

- configure: update the copyright year in the output

- [ygrek brought this change]

 BINDINGS: update SP-Forth and OCaml urls

Michael Kaufmann (11 Jun 2017)
- FindWin32CACert: Use a temporary buffer on the stack
 
 Don't malloc() the temporary buffer, and use the correct type:
 SearchPath() works with TCHAR, but SearchPathA() works with char.
 Set the buffer size to MAX_PATH, because the terminating null byte
 is already included in MAX_PATH.
 
 Reviewed-by: Daniel Stenberg
 Reviewed-by: Marcel Raad
 
 Closes #1548

Dan Fandrich (11 Jun 2017)
- test1521: fixed OOM handling

Daniel Stenberg (9 Jun 2017)
- RELEASE-PROCEDURE: updated future release dates

- [Paul Harris brought this change]

 gitignore: ignore all vim swap files
 
 Closes #1561

- lib1521: fix compiler warnings on the use of bad 'long' values
 
 Reported-by: Marcel Raad
 Bug: https://github.com/curl/curl/commit/cccac4fb2b20d6ed87da7978408c3ecacc464fe4#commitcomment-22453387

- setopt: check CURLOPT_ADDRESS_SCOPE option range
 
 ... and return error instead of triggering an assert() when being way
 out of range.

Jay Satiro (8 Jun 2017)
- [TheAssassin brought this change]

 cmake: Fix inconsistency regarding mbed TLS include directory
 
 Previously, one had to set MBEDTLS_INCLUDE_DIR to make CMake find the
 headers, but the system complained that mbed TLS wasn't found due to
 MBEDTLS_INCLUDE_DIRS (note the trailing s) was not set. This commit
 attempts to fix that.
 
 Closes https://github.com/curl/curl/pull/1541

Daniel Stenberg (8 Jun 2017)
- [Ryuichi KAWAMATA brought this change]

 examples/multi-uv.c: fix deprecated symbol
 
 Closes #1557

- asyn-ares: s/Curl_expire_latest/Curl_expire

- expire: remove Curl_expire_latest()
 
 With the introduction of expire IDs and the fact that existing timers
 can be removed now and thus never expire, the concept with adding a
 "latest" timer is not working anymore as it risks to not expire at all.
 
 So, to be certain the timers actually are in line and will expire, the
 plain Curl_expire() needs to be used. The _latest() function was added
 as a sort of shortcut in the past that's quite simply not necessary
 anymore.
 
 Follow-up to 31b39c40cf90
 
 Reported-by: Paul Harris
 
 Closes #1555

- [Chris Carlmar brought this change]

 configure: fix link with librtmp when specifying path
 
 Bug: https://curl.haxx.se/mail/lib-2017-06/0017.html

- file: make speedcheck use current time for checks
 
 ... as it would previously just get the "now" timestamp before the
 transfer starts and then not update it again.
 
 Closes #1550

- metalink: remove unused printf() argument

- travis: let some builds *not* use --enable-debug
 
 typecheck-gcc and other things require optimized builds
 
 Closes #1544

- README.md: show the coverall coverage on github

- lib1521: fix compiler warnings

- test1521: make the code < 80 columns wide

- test1121: use stricter types to work with typcheck-gcc

- typecheck-gcc: allow CURLOPT_STDERR to be NULL too

- test1521: test *all* curl_easy_setopt options
 
 mk-lib1521.pl generates a test program (lib1521.c) that calls
 curl_easy_setopt() for every known option with a few typical values to
 make sure they work (ignoring the return codes).
 
 Some small changes were necessary to avoid asserts and NULL accesses
 when doing this.
 
 The perl script needs to be manually rerun when we add new options.
 
 Closes #1543

Dan Fandrich (5 Jun 2017)
- test1538: added "verbose logs" keyword
 
 These error messages are not displayed with --disable-verbose

Daniel Stenberg (5 Jun 2017)
- test1262: verify ftp download with -z for "if older than this"

Marcel Raad (5 Jun 2017)
- curl_ntlm_core: use Curl_raw_toupper instead of toupper
 
 This was the only remaining use of toupper in the entire source code.
 
 Suggested-by: Daniel Stenberg

Daniel Stenberg (4 Jun 2017)
- RELEASE-NOTES: synced with 65ba92650

Marcel Raad (4 Jun 2017)
- curl_ntlm_core: pass unsigned char to toupper
 
 Otherwise, clang on Cygwin64 warns:
 curl_ntlm_core.c:525:35: error: array subscript is of type 'char'
 [-Werror,-Wchar-subscripts]
 dest[2 * i] = (unsigned char)(toupper(src[i]));
 ^~~~~~~~~~~~~~~
 /usr/include/ctype.h:152:25: note: expanded from macro 'toupper'
 (void) __CTYPE_PTR[__x]; (toupper) (__x);})
 ^~~~

Jay Satiro (3 Jun 2017)
- [Mahmoud Samir Fayed brought this change]

 BINDINGS: add Ring binding
 
 Closes https://github.com/curl/curl/pull/1539

Daniel Stenberg (4 Jun 2017)
- CONTRIBUTE.md: mention tests done on pull requests

- travis: add coverage, distcheck and cmake builds
 
 Closes #1534

Marcel Raad (3 Jun 2017)
- libtest: fix int-in-bool-context warnings
 
 GCC 7 complained:
 ‘*’ in boolean context, suggest ‘&&’ instead [-Wint-in-bool-context]

- libtest: fix implicit-fallthrough warnings with GCC 7

- x509asn1: fix implicit-fallthrough warning with GCC 7

- curl_sasl: fix unused-variable warning
 
 This fixes the following warning with CURL_DISABLE_CRYPTO_AUTH,
 as seen in the autobuilds:
 
 curl_sasl.c:417:9: warning: unused variable 'serverdata'
 [-Wunused-variable]

Daniel Stenberg (3 Jun 2017)
- updatemanpages.pl: error out on too old git version

Marcel Raad (3 Jun 2017)
- cyassl: define build macros before including ssl.h
 
 cyassl/ssl.h needs the macros from cyassl/options.h, so define them
 before including cyassl/ssl.h the first time, which happens in
 urldata.h.
 This broke the build on Ubuntu Xenial, which comes with WolfSSL 3.4.8
 and therefore redefines the symbols from cyassl/options.h instead of
 including the header.
 
 Closes https://github.com/curl/curl/pull/1536

Daniel Stenberg (3 Jun 2017)
- tool_util: remove unused tvdiff_secs and remove tool_ prefix
 
 Closes #1532

- dedotdot: fixed output for ".." and "." only input
 
 Found when updating test 1395, which I did to increase test coverage of
 this source file...
 
 Closes #1535

Marcel Raad (2 Jun 2017)
- mbedtls: make TU-local variable static
 
 mbedtls_x509_crt_profile_fr is only used locally.
 This fixes a missing-variable-declarations warning with clang.

- MD(4|5): silence cast-align clang warning
 
 Unaligned access is on purpose here and the warning is harmless on
 affected architectures. GCC knows that, while clang warns on all
 architectures.

Daniel Stenberg (2 Jun 2017)
- test1538: fix typo

- test1538: verify the libcurl strerror API calls

- curl_endian: remove unused functions
 
 Closes #1529

- test1537: dedicated tests of the URL (un)escape API calls
 
 Closes #1530

- coverage: run event tests too
 
 ... the torture ones are commented out only because they are slooooow.

- build: provide easy code coverage measuring
 
 Closes #1528

- typecheck-gcc.h: check CURLINFO_CERTINFO
 
 ... and update the certinfo.c example accordingly.
 
 Fixes https://github.com/curl/curl/issues/846

- typecheck-gcc.h: check CURLINFO_TLS_SSL_PTR and CURLINFO_TLS_SESSION
 
 ... so that they get the required "struct curl_tlssessioninfo **"
 arguments.

- typecheck-gcc.h: separate getinfo slist checks from other pointers
 
 Fixes #1524

Marcel Raad (1 Jun 2017)
- curl-compilers.m4: escape square brackets in regex
 
 Otherwise, they are removed in the final configure file.
 Also changed sed to "$SED" like in most other calls in this file.

- curl-compilers.m4: fix compiler_num for clang
 
 "clang -dumpversion" always returns "4.2.1", the GCC version that clang
 was initially compatible to. Use "clang -v" instead, which returns the
 actual clang version.
 
 Fixes https://github.com/curl/curl/issues/1522
 Closes https://github.com/curl/curl/pull/1523

Daniel Stenberg (31 May 2017)
- examples/externalsocket.c: s/closesocket/closecb
 
 ... since closesocket is a function in WinSock.
 
 Reported-by: Marcel Raad
 Bug: https://github.com/curl/curl/commit/55fcb8485914700132fd1854c9509b66c955efbe#co
 mmitcomment-22347818

Marcel Raad (31 May 2017)
- lib583: fix compiler warning
 
 Use CURLMcode for variable 'res' and cast to int where necessary
 instead of the other way around. Other tests do the same.
 
 This fixes the following clang warning:
 lib583.c:68:15: warning: cast from function call of type 'CURLMcode' to
 non-matching type 'int' [-Wbad-function-cast]

Daniel Stenberg (31 May 2017)
- CURLOPT_SSH_KEY*.3: typos
 
 Reported-by: Gisle Vanem

- CURLOPT_STREAM_DEPENDS.3: typo

- CURLOPT_FNMATCH_FUNCTION.3: also modified example to avoid fcpp issues

- CURLOPT_FNMATCH_DATA.3: modified example to avoid fcpp issues

- opts: more than 100 more examples for man pages...

- libtest/lib574.c: use correct callback proto

- examples/sampleconv.c: indent changes, made callbacks static

- example/externalsocket.c: make it use CLOSESOCKETFUNCTION too

Marcel Raad (31 May 2017)
- curl-compilers.m4: enable -Wshift-sign-overflow for clang
 
 clang 2.9+ supports -Wshift-sign-overflow, which warns about undefined
 behavior on signed left shifts when shifting by too many places.
 
 Ref: https://github.com/curl/curl/issues/1516
 Closes https://github.com/curl/curl/pull/1517

Daniel Stenberg (31 May 2017)
- CURLOPT_PROXY.3: fix test 1140 breakage

Jay Satiro (31 May 2017)
- build-wolfssl: Sync config with wolfSSL 3.11
 
 wolfSSL configure script relevant changes from 3.10 to 3.11:
 
 - Async threading support added; disabled by default without async
 crypto, which continues to be disabled by default.
 
 wolfSSL configure script relevant changes from 3.11 to 3.11.1 (beta):
 
 - TLS 1.3 beta support added; disabled by default.
 
 For experimenting I put in a comment block the defines needed to enable
 TLS 1.3 support (ie the equivalent of --enable-tls13).

Daniel Stenberg (30 May 2017)
- opts: more examples added to man pages

- docs: clarify NO_PROXY further
 
 Fixes #1208

- CURLOPT_PROXY.3: describe the environment variables more

- transfer: init the infilesize from the postfields...
 
 ... with a strlen() if no size was set, and do this in the pretransfer
 function so that the info is set early. Otherwise, the default strlen()
 done on the POSTFIELDS data never sets state.infilesize.
 
 Reported-by: Vincas Razma
 Bug: #1294

Jay Satiro (29 May 2017)
- test557: fix ubsan runtime error due to int left shift
 
 - Test curl_msnprintf negative int width arg using INT_MIN instead of
 1 << 31 which is undefined behavior.
 
 Closes https://github.com/curl/curl/issues/1516

- mbedtls: fix variable shadow warning
 
 vtls/mbedtls.c:804:69: warning: declaration of 'entropy' shadows a global declaration [-Wshadow]
 CURLcode Curl_mbedtls_random(struct Curl_easy *data, unsigned char *entropy,
 ^~~~~~~

Daniel Stenberg (29 May 2017)
- RELEASE-NOTES: synced with 3aaac8c2f

Dan Fandrich (28 May 2017)
- tests: removed some redundant empty <stdout> sections

- runtests.pl: removed <precommand> feature
 
 This hasn't been used in over a decade. <precheck> can still be used to
 run commands before the main test.

Daniel Stenberg (27 May 2017)
- opts: more examples added in option man pages

Dan Fandrich (27 May 2017)
- runtests.pl: removed unused arguments to valgrindparse

Daniel Stenberg (25 May 2017)
- TODO: 6.4 is done, send telnet data in chunks

- [Phil Crump brought this change]

 docs/CURLOPT_SSLVERSION.3: Correct define name in example
 
 Closes #1509

- ssh: fix 'left' may be used uninitialized
 
 follow-up to f31760e63b4e
 
 Reported-by: Michael Kaufmann
 Bug: https://github.com/curl/curl/pull/1495#issuecomment-303982793

Michael Kaufmann (24 May 2017)
- time: fix type conversions and compiler warnings
 
 Fix bugs and compiler warnings on systems with 32-bit long and
 64-bit time_t.
 
 Reviewed-by: Daniel Stenberg
 
 Closes #1499

Marcel Raad (24 May 2017)
- examples: fix Wimplicit-fallthrough warnings
 
 This is contained in -Wextra with GCC 7.

Daniel Stenberg (24 May 2017)
- [Anatol Belski brought this change]

 winbuild: fix the nghttp2 build
 
 Closes #1321

GitHub (24 May 2017)
- [Sergei Nikulov brought this change]

 LDAP: documentation update per #878 changes (#1506)

Daniel Stenberg (23 May 2017)
- redirect: store the "would redirect to" URL when max redirs is reached
 
 Test 1261 added to verify.
 
 Reported-by: Lloyd Fournier
 
 Fixes #1489
 Closes #1497

GitHub (24 May 2017)
- [Sergei Nikulov brought this change]

 LDAP: fixed checksrc issue

- [Sergei Nikulov brought this change]

 LDAP: using ldap_bind_s on Windows with methods (#878)
 
 * LDAP: using ldap_bind_s on Windows with methods(BASIC/DIGEST/NTLM/AUTONEG)
 
 * ldap: updated per build options handling
 
 * ldap: fixed logic for auth selection

Daniel Stenberg (23 May 2017)
- [Akhil Kedia brought this change]

 cmake: fix build on Ubuntu 14.04
 
 Fixed a syntax error with setting cache variables (The type and
 docstring were missing), resulting in build errors. Quoted the
 CURL_CA_PATH and CURL_CA_BUNDLE otherwise the path was written without
 quotes in C code, resulting in build errors.
 
 Closes #1503
 
 Signed-off-by: Akhil <akhil.kedia@samsung.com>

- url: fix declaration of 'pipe' shadows a global declaration
 
 follow-up to 4cdb1be8246c

Kamil Dudka (22 May 2017)
- memdebug: fix compilation failure
 
 .... caused by a typo in the last commit (fixing issue #1504):
 
 memdebug.c: In function ‘curl_fclose’:
 memdebug.c:444:3: error: implicit declaration of function
 ‘DEBUGDEBUGASSERT’ [-Werror=implicit-function-declaration]

Daniel Stenberg (22 May 2017)
- assert: avoid, use DEBUGASSERT instead!
 
 ... as it does extra checks to actually work.
 
 Reported-by: jonrumsey at github
 Fixes #1504

- [Simon Warta brought this change]

 cmake: remove unused variables: GNUTLS_ENABLED, NSS_ENABLED

- [Simon Warta brought this change]

 cmake: remove CURL_CA_BUNDLE from cmake TODO

- [Simon Warta brought this change]

 cmake: auto detection of CURL_CA_BUNDLE/CURL_CA_PATH
 
 Closes #1461

- [Simon Warta brought this change]

 cmake: add CURL_CA_BUNDLE/CURL_CA_FALLBACK/CURL_CA_PATH options

- [Simon Warta brought this change]

 cmake: Add CURL_CA_FALLBACK to curl_config.h.cmake
 
 This is for symmetry with the autoconf generated curl_config.h.in

- RELEASE-NOTES: synced with 052a14e3c

Michael Kaufmann (20 May 2017)
- tests: stabilize test 1034
 
 Pass the invalid domain name on stdin. On some systems, the test
 framework cannot pass invalid UTF-8 sequences on the command line.
 
 Closes #1488

Daniel Stenberg (20 May 2017)
- ssh: ignore timeouts during disconnect
 
 ... as otherwise it risks not cleaning up the libssh2 handle properly
 which leads to memory leak!
 
 Assisted-by: Joel Depooter
 
 Closes #1495
 Closes #1479
 
 Bug: https://curl.haxx.se/mail/lib-2017-04/0024.html

- ghiper.c/hiperfifo.c: add comment about missing timer functionality
 
 It takes someone to read up on the APIs of these libraries to figure out
 how to do this correctly.
 
 Reported-by: Michael Kaufmann
 
 Closes #1253

- asiohiper.cpp / evhiperfifo.c: deal with negative timerfunction input
 
 That means delete the timer.
 
 Reported-by: Michael Kaufmann
 Ref: #1253

- cmdline-opts/write-out.d: s/-L/--location
 
 Since the man page generator wants the long option name version to
 generate the proper output.

- [Bernhard M. Wiedemann brought this change]

 mkhelp.pl: do not add current time into curl binary
 
 ... as part of hugehelpgz rodata to make build reproducible.
 
 See https://reproducible-builds.org/ for why this is good
 
 Closes #1490

- oauth2-bearer.d: mention the <token> argument

Nick Zitzmann (16 May 2017)
- darwinssl: Fix exception when processing a client-side certificate file
 if no error was raised by the API but the SecIdentityRef was null
 
 Fixes #1450

Daniel Stenberg (16 May 2017)
- curl_sasl: fix build error with CURL_DISABLE_CRYPTO_AUTH + USE_NTLM
 
 Reported-by: wyattoday at github
 Fixes #1487

- docs/cmdline-opts/config.d: edit for language

- RELEASE-NOTES: synced with eb16305e6

- [moparisthebest brought this change]

 SecureTransport/DarwinSSL: Implement public key pinning
 
 Closes #1400

- man pages: fix example syntax errors
 
 follow-up to 5ddad099b42b50

- docs/libcurl/opts: added more examples in man pages

- CURLOPT_HTTPPROXYTUNNEL: clarify, add example

- curl: show the libcurl release date in --version output
 
 ... and support and additional "security patched" date for those who
 enhance older versions that way. Pass on the define CURL_PATCHSTAMP with
 a date for that.
 
 Building with non-release headers shows the date as [unreleased].
 
 Also: this changes the date format generated in the curlver.h file to be
 "YYYY-MM-DD" (no name of the day or month, no time, no time zone) to
 make it easier on the eye and easier to parse. Example (new) date
 string: 2017-05-09
 
 Suggested-by: Brian Childs
 
 Closes #1474

Dan Fandrich (13 May 2017)
- url.c: add a compile-time check that CURL_MAX_WRITE_SIZE is large enough
 
 Some code (e.g. Curl_fillreadbuffer) assumes that this buffer is not
 exceedingly tiny and will break if it is. This same check is already
 done at run time in the CURLOPT_BUFFERSIZE option.

- lib510: don't write past the end of the buffer if it's too small

- tests: added missing keywords "chunked Transfer-Encoding"

Daniel Stenberg (13 May 2017)
- THANKS: add a few missing names
 
 ... I found them in the commit logs from the early years

Dan Fandrich (13 May 2017)
- tests: made a couple of prechecks consistent with others
 
 Also removed a TODO suggesting caching the precheck results. Tests
 showed this would save about 0.1 sec on the total test run time on a
 relatively modern system, an unnoticeable gain at the cost of longer and
 more complicated code. There would also be a danger that a cached test
 result would be inappropriately returned, such as when other test
 dependencies (like environment variables) are different or when the
 precheck causes side effects (like filesystem changes).

Daniel Stenberg (12 May 2017)
- FAQ: add 7.4 to toc
 
 ... and delete trailing whitespace
 
 Fixes #1484

- multi: remove leftover debug infof() calls from e9fd794a6

- pipeline: fix mistakenly trying to pipeline POSTs
 
 The function IsPipeliningPossible() would return TRUE if either
 pipelining OR HTTP/2 were possible on a connection, which would lead to
 it returning TRUE even for POSTs on HTTP/1 connections.
 
 It now returns a bitmask so that the caller can differentiate which kind
 the connection allows.
 
 Fixes #1481
 Closes #1483
 Reported-by: stootill at github

Jay Satiro (12 May 2017)
- [Ron Eldor brought this change]

 mbedtls: Support server renegotiation request
 
 Tested with servers: IIS 7.5; OpenSSL 1.0.2.
 
 Closes https://github.com/curl/curl/pull/1475

Marcel Raad (11 May 2017)
- cookie_interface: fix -Wcomma warning
 
 clang 5.0 complains:
 possible misuse of comma operator here [-Wcomma]

- formdata: fix -Wcomma warning
 
 clang 5.0 complains:
 possible misuse of comma operator here [-Wcomma]
 
 Change the comma to a semicolon to fix that.

Daniel Stenberg (10 May 2017)
- multi: use a fixed array of timers instead of malloc
 
 ... since the total amount is low this is faster, easier and reduces
 memory overhead.
 
 Also, Curl_expire_done() can now mark an expire timeout as done so that
 it never times out.
 
 Closes #1472

- multi: assign IDs to all timers and make each timer singleton
 
 A) reduces the timeout lists drastically
 
 B) prevents a lot of superfluous loops for timers that expires "in vain"
 when it has actually already been extended to fire later on

- [Richard Hsu brought this change]

 tests: remove superfluous test 1399
 
 @MarcelRaad noted that `test1399` causes infinite loop on MinGW.
 Looking into this, seems like it is related to how Windows handles
 CRLF. See https://github.com/curl/curl/commit/9e093f by @mback2k.
 Removing `test1399` as it's identical to `test1326` then with such a
 fix.
 
 Test 1399 was broughy by commit 862b02f8947039e
 
 Closes #1478

Dan Fandrich (9 May 2017)
- tests: make test file names more unique
 
 Include the test number in the names of files written out by tests to
 reduce the chance of accidental duplication and to make it more clear
 which test is associated with which file.

- tests: removed redundant --trace-ascii arguments
 
 This is already added by the test suite; it's not clear why all these
 tests had it, unless it's cargo-culting.

Marcel Raad (9 May 2017)
- tool: fix remaining -Wcast-qual warnings
 
 Avoid casting away low-level const.

Daniel Stenberg (9 May 2017)
- formboundary: convert assert into run-time check
 
 ... to really make sure the boundary fits in the target buffer.
 
 Fixes unused parameter 'buflen' warning.
 
 Reported-by: Michael Kaufmann
 Bug: https://github.com/curl/curl/pull/1468#issuecomment-300078754

Dan Fandrich (9 May 2017)
- tests: list the primary server first in the server section

Daniel Stenberg (8 May 2017)
- curl: generate the --help output
 
 ... using the docs/cmdline-opts/gen.pl script, so that we get all the
 command line option documentation from the same source.
 
 The generation of the list has to be done manually and pasted into the
 source code.
 
 Closes #1465

- tests: updated for modified fake random

- [Jay Satiro brought this change]

 rand: treat fake entropy the same regardless of endianness
 
 When the random seed is purposely made predictable for testing purposes
 by using the CURL_ENTROPY environment variable, process that data in an
 endian agnostic way so the the initial random seed is the same
 regardless of endianness.
 
 - Change Curl_rand to write to a char array instead of int array.
 
 - Add Curl_rand_hex to write random hex characters to a buffer.
 
 Fixes #1315
 Closes #1468
 
 Co-authored-by: Daniel Stenberg
 Reported-by: Michael Kaufmann

Dan Fandrich (8 May 2017)
- tests: give each stunnel.conf file a unique name
 
 Otherwise, subsequent uses of stunnel overwrite the configuration file
 of previous invocations so they can no longer be inspected.

Marcel Raad (8 May 2017)
- tool_msgs: remove wrong cast
 
 Commit 481e0de00a9003b9c5220b120e3fc302d9b0932d changed the variable
 type from int to size_t, so don't cast the result of strlen to int
 anymore.

- tftpd: fix signed/unsigned mismatch warnings
 
 alarm's argument is unsigned.

- libtest: fix MinGW-w64 warnings
 
 long is 32 bits while size_t is 64 bits on MinGW-w64, so
 typecheck-gcc.h complains when using size_t for a long option.
 Also, curl_socket_t is unsigned long long rather than int.

Daniel Stenberg (8 May 2017)
- curl.1: depend the build on the Makefile.inc too
 
 ... to also make it update when we remove files, like we did for
 --environment in commit a8e388dd1095.

- RELEASE-NOTES: synced with e3f84efc32d6b01a

- runtests: fix "use of undefined value" warning in -R handling

Marcel Raad (8 May 2017)
- test537: use correct variable type
 
 Avoids narrowing conversion warnings because rlim_t is usually
 unsigned long.
 
 Closes https://github.com/curl/curl/pull/1469

- sendrecv: fix MinGW-w64 warning
 
 The first argument to select is an int, while curl_socket_t is
 unsigned long long when using WinSock. It's ignored anyway [1].
 
 [1] https://msdn.microsoft.com/en-us/library/windows/desktop/ms740141.aspx

- tool_parsecfg: fix -Wcast-qual warning
 
 Don't convert string literal to char * before assigning it to
 const char *.

- asyn-thread: fix unused macro warnings
 
 Don't do anything in this file if CURLRES_THREADED is not defined.

- tftp: silence bad-function-cast warning
 
 The cases this warns about are handled elsewhere, so just use an
 intermediate variable to silence the warning.

Daniel Stenberg (7 May 2017)
- [canavan at github brought this change]

 buildconf: fix hang on IRIX
 
 Apparently, /usr/bin/m4 ignores the --version parameter and waits for
 input from stdin.
 
 Fixes #1471

- opts: fix bad example formatting \n => \\n
 
 ...to render properly nroff.

- opts: examples added to 8 more libcurl option man pages

- curl: remove tool_writeenv.[ch]
 
 ... and USE_ENVIRONMENT and --environment. It was once added for RISC OS
 support and its platform specific behavior has been annoying ever
 since. Added in commit c3c8bbd3b2688da8e, mostly unchanged since
 then. Most probably not actually used for years.
 
 Closes #1463

Dan Fandrich (6 May 2017)
- runtests.pl: simplify the datacheck read section
 
 Also, document that numbered datacheck sections are possible.

Marcel Raad (5 May 2017)
- tests: fix -Wcast-qual warnings
 
 Avoid casting string literals to non-const char *.

Daniel Stenberg (5 May 2017)
- docs/opts: 24 more man pages now have examples

- docs/opts: 23 more man pages now have examples

- tests/server: run checksrc by default in debug-builds

- curl_slist_append.3: clarify a NULL input creates a new list

Marcel Raad (5 May 2017)
- unit1305: fix compiler warning
 
 calloc and ai_addrlen expect different (usually unsigned) types.

Daniel Stenberg (5 May 2017)
- runtests: use -R for random order
 
 Suggested-by: Dan Fandrich

- runtests: add -o to run test cases in scrambled order
 
 ... instead of numerical order.
 
 Closes #1466

Dan Fandrich (4 May 2017)
- sockfilt.c: shortened too long line

Marcel Raad (4 May 2017)
- tests/server: make string literals const
 
 assign string literals to const char * instead of char * in order to
 avoid a lot of these warnings:
 cast from 'const char *' to 'char *' drops const qualifier
 [-Wcast-qual]

Dan Fandrich (4 May 2017)
- schannel: return a more specific error code for SEC_E_UNTRUSTED_ROOT

- test557: set a known good numeric locale
 
 Windows does not allow setting the locale with environment variables (as
 the test attempted to do), so the test failed when run with a user
 locale that has a comma as radixchar. Changed the test to call
 setlocale() explicitly to ensure that a known working locale is set even
 on Windows.

Daniel Stenberg (4 May 2017)
- curl: fix warning "comma at end of enumerator list"

- test559: verify use of minimum CURLOPT_BUFFERSIZE

Marcel Raad (4 May 2017)
- curl_setup_once: use SEND_QUAL_ARG2 for swrite
 
 SEND_QUAL_ARG2 had to be set, but was never used. Use it in swrite to
 avoid warnings about casting away low-level const.
 
 Closes https://github.com/curl/curl/pull/1464

Daniel Stenberg (4 May 2017)
- CURLINFO_REDIRECT_URL.3: add example

- CURLINFO_EFFECTIVE_URL.3: add example

Marcel Raad (3 May 2017)
- lib: fix compiler warnings
 
 Fix the following warnings when building the tests by using the correct
 types:
 cast from 'const char *' to 'void *' drops const qualifier
 [-Wcast-qual]
 implicit conversion changes signedness [-Wsign-conversion]

- typecheck-gcc: add support for CURLINFO_SOCKET
 
 Closes https://github.com/curl/curl/pull/1452

- typecheck-gcc: add missing string options
 
 Closes https://github.com/curl/curl/pull/1452

Daniel Stenberg (3 May 2017)
- abstract-unix-socket.d: shorten the help text to fit within 79 cols

- RELEASE-NOTES: synced with 862b02f89

- [Richard Hsu brought this change]

 Telnet: Write full buffer instead of byte-by-byte
 
 Previous TODO wanting to write in chunks. We should support writing more
 at once since some TELNET servers may respond immediately upon first
 byte written such as WHOIS servers.
 
 Closes #1389

- curl: non-boolean command line args reject --no- prefixes
 
 ... and instead properly respond with an error message to the user
 instead of silently ignoring.
 
 Fixes #1453
 Closes #1458

Marcel Raad (2 May 2017)
- testpart: remove _MPRINTF_REPLACE
 
 Support for _MPRINTF_REPLACE in mprintf.h was removed in
 55452ebdff47f98bf3cc383f1dfc3623fcaefefd, replaced with curl_printf.h.

Dan Fandrich (2 May 2017)
- gtls: fixed a lingering BUFSIZE reference

Daniel Stenberg (2 May 2017)
- ssh: fix compiler warning from e40e9d7f0de

- url: let CURLOPT_BUFFERSIZE realloc to smaller sizes too
 
 Closes #1449

- BUFSIZE: rename to READBUFFER_*, make separate MASTERBUF_SIZE

- openssl: use local stack for temp storage

- sendf: remove use of BUFSIZE from debug data conversions
 
 The buffer can have other sizes.

- buffer: use data->set.buffer_size instead of BUFSIZE
 
 ... to properly use the dynamically set buffer size!

- krb5: use private buffer for temp string, not receive buffer

- upload: UPLOAD_BUFSIZE is now for the upload buffer

- unit1606: do not print/access buffer
 
 It was a wrong assumption that it could do that!

- http-proxy: use a dedicated CONNECT response buffer
 
 To make it suitably independent of the receive buffer and its flexible
 size.

- transfer: fix minor buffer_size mistake

- failf: use private buffer, don't clobber receive buffer

- pingpong: use the set buffer size

- http2: use the correct set buffer size

- http: don't clobber the receive buffer for timecond

- buffer_size: make sure it always has the correct size
 
 Removes the need for CURL_BUFSIZE

- file: use private buffer for C-L output
 
 ... instead of clobbering the download buffer.

- CURLOPT_BUFFERSIZE: 1024 bytes is now the minimum size
 
 The buffer is needed to receive FTP, HTTP CONNECT responses etc so
 already at this size things risk breaking and smaller is certainly not
 wise.

- ftp: use private buffer for temp storage, not receive buffer

- http: use private user:password output buffer
 
 Don't clobber the receive buffer.

Marcel Raad (1 May 2017)
- anyauthput: remove unused code
 
 The definition of TRUE was introduced in
 4a728747e6f8845e500910e397dfc99aaf4a7984 and is not used anymore since
 e664cd5826d43930fcc5b5dbaedbec94af33184b.
 The usage of intptr_t was removed in
 32e38b8f42477cf5ce3c3fef2fcc9db82f7fb7be.

Jay Satiro (1 May 2017)
- tool: Fix missing prototype warnings for CURL_DOES_CONVERSIONS
 
 - Include tool_convert.h where needed.
 
 Bug: https://github.com/curl/curl/issues/1460
 Reported-by: Gisle Vanem

- curl_setup: Ensure no more than one IDN lib is enabled
 
 Prior to this change it was possible for libcurl to be built with both
 Windows' native IDN lib (normaliz) and libidn2 enabled. It appears that
 doesn't offer any benefit --and could cause a bug-- since libcurl's IDN
 handling is written to use either one but not both.
 
 Bug: https://github.com/curl/curl/issues/1441#issuecomment-297689856
 Reported-by: Gisle Vanem

Marcel Raad (1 May 2017)
- getpart: use correct variable type
 
 This fixes the following clang warning:
 getpart.c:201:17: warning: cast from function call of type 'CURLcode'
 to non-matching type 'int' [-Wbad-function-cast]

- tests: declare TU-local variables static
 
 This fixes missing-variable-declarations warnings when building with
 clang.

- tool_cb_prg: fix double-promotion warning
 
 clang complains:
 tool_cb_prg.c:86:22: error: implicit conversion increases
 floating-point precision: 'float' to 'double'
 [-Werror,-Wdouble-promotion]
 
 Fix this by using a double instead of a float constant.

Dan Fandrich (1 May 2017)
- examples: fixed too long line and too long string warnings

Marcel Raad (30 Apr 2017)
- examples: declare TU-local variables static
 
 This fixes missing-variable-declarations warnings when building with
 clang.

- http2: declare TU-local variables static
 
 This fixes the following clang warnings:
 
 http2.c:184:27: error: no previous extern declaration for non-static
 variable 'Curl_handler_http2' [-Werror,-Wmissing-variable-declarations]
 http2.c:204:27: error: no previous extern declaration for non-static
 variable 'Curl_handler_http2_ssl'
 [-Werror,-Wmissing-variable-declarations]

Dan Fandrich (30 Apr 2017)
- unit1604: fixed indentation

- unit1604: fixed compilation under Windows, broken in the previous commit

- tests: fixed OOM handling of unit tests to abort test
 
 It's dangerous to continue to run the test when a memory alloc fails.

Marcel Raad (29 Apr 2017)
- curl_rtmp: fix missing-variable-declarations warnings
 
 clang complains:
 
 curl_rtmp.c:61:27: error: no previous extern declaration for non-static variable 'Curl_handler_rtmp' [-Werror,-Wmissing-variable-declarations]
 curl_rtmp.c:81:27: error: no previous extern declaration for non-static variable 'Curl_handler_rtmpt' [-Werror,-Wmissing-variable-declarations]
 curl_rtmp.c:101:27: error: no previous extern declaration for non-static variable 'Curl_handler_rtmpe' [-Werror,-Wmissing-variable-declarations]
 curl_rtmp.c:121:27: error: no previous extern declaration for non-static variable 'Curl_handler_rtmpte' [-Werror,-Wmissing-variable-declarations]
 curl_rtmp.c:141:27: error: no previous extern declaration for non-static variable 'Curl_handler_rtmps' [-Werror,-Wmissing-variable-declarations]
 curl_rtmp.c:161:27: error: no previous extern declaration for non-static variable 'Curl_handler_rtmpts' [-Werror,-Wmissing-variable-declarations]
 
 Fix this by including the header file.

Dan Fandrich (29 Apr 2017)
- url: fixed a memory leak on OOM while setting CURLOPT_BUFFERSIZE

- tests: added --remote-time tests for remaining protocols that support it

- runtests.pl: support multiline <postcheck> commands

- tool_operate: use utimes instead of obsolescent utime when available

- test1443: test --remote-time

- http-proxy: removed unused argument in CURL_DISABLE_PROXY case
 
 Missed in commit 55c3c02e

Daniel Stenberg (27 Apr 2017)
- cookie_interface.c: changed the other domain to example.com too

- cookie_interface.c: fix cookie domain so the example works

Dan Fandrich (26 Apr 2017)
- Makefile: fix make dist
 
 Commit 80a87e8a broke 'make dist' as it can't handle installing from
 absolute target names. Rearranged the dependencies so the absolute name
 is used for building but the relative name is use for distributing.

Marcel Raad (26 Apr 2017)
- lib: remove unused code
 
 This fixes the following clang warnings:
 macro is not used [-Wunused-macros]
 will never be executed [-Wunreachable-code]
 
 Closes https://github.com/curl/curl/pull/1448

Daniel Stenberg (26 Apr 2017)
- http-proxy: remove unused argument from Curl_proxyCONNECT()

- [Martin Kepplinger brought this change]

 url: declare get_protocol_family() static
 
 get_protocol_family() is not defined static even though there is a
 static local forward declaration. Let's simply make the definition match
 it's declaration.
 
 Bug: https://curl.haxx.se/mail/lib-2017-04/0127.html

- examples: ftpuploadfrommem.c
 
 Uploads data to an FTP site, directly from memory.
 
 Closes #1451

Kamil Dudka (25 Apr 2017)
- nss: load libnssckbi.so if no other trust is specified
 
 The module contains a more comprehensive set of trust information than
 supported by nss-pem, because libnssckbi.so also includes information
 about distrusted certificates.
 
 Reviewed-by: Kai Engert
 Closes #1414

- nss: factorize out nss_{un,}load_module to separate fncs
 
 No change of behavior is intended by this commit.

- nss: do not leak PKCS #11 slot while loading a key
 
 It could prevent nss-pem from being unloaded later on.
 
 Bug: https://bugzilla.redhat.com/1444860

Marcel Raad (25 Apr 2017)
- typecheck-gcc: fix _curl_is_slist_info
 
 Info values starting with CURLINFO_SOCKET expect a curl_socket_t, not a
 curl_slist argument.
 
 This fixes the following GCC warning when building the examples with
 --enable-optimize:
 
 ../../include/curl/typecheck-gcc.h:126:42: warning: call to
 ‘_curl_easy_getinfo_err_curl_slist’ declared with attribute warning:
 curl_easy_getinfo expects a pointer to 'struct curl_slist *' for this
 info [enabled by default]
 sendrecv.c:90:11: note: in expansion of macro ‘curl_easy_getinfo’
 res = curl_easy_getinfo(curl, CURLINFO_ACTIVESOCKET, &sockfd);
 
 Closes https://github.com/curl/curl/pull/1447

Daniel Stenberg (25 Apr 2017)
- curl: set a 100K buffer size by default
 
 Test command 'time curl http://localhost/80GB -so /dev/null' on a Debian
 Linux.
 
 Before (middle performing run out 9):
 
 real 0m28.078s
 user 0m11.240s
 sys 0m12.876s
 
 After (middle performing run out 9)
 
 real 0m26.356s (93.9%)
 user 0m5.324s (47.4%)
 sys 0m8.368s (65.0%)
 
 Also, doing SFTP over a 200 millsecond latency link is now about 6 times
 faster.
 
 Closes #1446

- transfer: remove 'uploadbuf' pointer and cleanup readwrite_upload()
 
 The data->req.uploadbuf struct member served no good purpose, instead we
 use ->state.uploadbuffer directly. It makes it clearer in the code which
 buffer that's being used.
 
 Removed the 'SingleRequest *' argument from the readwrite_upload() proto
 as it can be derived from the Curl_easy struct. Also made the code in
 the readwrite_upload() function use the 'k->' shortcut to all references
 to struct fields in 'data->req', which previously was made with a mix of
 both.

Jay Satiro (25 Apr 2017)
- configure: stop prepending to LDFLAGS, CPPFLAGS
 
 - Change prepends to appends because user's LDFLAGS and CPPFLAGS should
 always come first so they're searched before ours.
 
 Bug: https://github.com/curl/curl/issues/1420
 Reported-by: Helmut K. C. Tessarek

Marcel Raad (25 Apr 2017)
- if2ip: fix -Wcast-align warning
 
 Follow-up to 119037325de02579f5c58256ca2ed2a0aa592c86, which fixed the
 warning in the HAVE_GETIFADDRS block, but not in the
 HAVE_IOCTL_SIOCGIFADDR block.

Dan Fandrich (24 Apr 2017)
- Makefile: avoid use of GNU-specific form of $<
 
 $< is only allowed in implicit rules in some non-GNU makes (e.g. BSD,
 AIX) so avoid use elsewhere by referencing the dependent curl.1 file
 directly instead. This is somewhat tricky because the file is supplied
 in the packaged tar ball (but not in git) but must still be able to be
 rebuilt when its dependencies change. The right thing must happen in
 both tar ball and git source trees, as well as in both in-tree and
 out-of-tree builds.

Kamil Dudka (24 Apr 2017)
- nss: adapt to the new Curl_llist API
 
 This commit fixes compilation failure caused by
 cbae73e1dd95946597ea74ccb580c30f78e3fa73.

Marcel Raad (24 Apr 2017)
- curl-compilers.m4: accept -Og and -Ofast GCC flags
 
 -Og, introduced in GCC 4.8, optimizes for debugging experience.
 -Ofast, introduced in GCC 4.7, builds on -O3 and enables further
 optimizations breaking strict standards compliance.
 When specified in CFLAGS, these were always overridden by -O0 or -O2.
 Fix this by adding them to flags_opt_all.
 
 Ref: https://gcc.gnu.org/onlinedocs/gcc-4.8.0/gcc/Optimize-Options.html
 Ref: https://github.com/curl/curl/pull/1404#issuecomment-296401570
 Closes https://github.com/curl/curl/pull/1440

Daniel Stenberg (24 Apr 2017)
- RELEASE-NOTES: synced with c68fed875

- configure: fix the -ldl check for openssl, add -lpthread check
 
 The check for if -ldl is needed to build with (a statically built)
 openssl was broken. This repairs the check, and adds a check for
 -lpthread as well since OpenSSL 1.1.0+ does in fact require -lpthread so
 only adding -ldl for a static openssl build is no longer enough.
 
 Reported-by: Jay Satiro
 Ref: #1426
 Closes #1427

- llist: fix a comment after cbae73e1dd9
 
 Pointed-it-by: Kevin Ji
 URL: https://github.com/curl/curl/commit/cbae73e1dd95946597ea74ccb580c30f78e3fa73#commitcomment-21872622

Jay Satiro (22 Apr 2017)
- schannel: Don't treat encrypted partial record as pending data
 
 - Track when the cached encrypted data contains only a partial record
 that can't be decrypted without more data (SEC_E_INCOMPLETE_MESSAGE).
 
 - Change Curl_schannel_data_pending to return false in such a case.
 
 Other SSL libraries have pending data functions that behave similarly.
 
 Ref: https://github.com/curl/curl/pull/1387
 
 Closes https://github.com/curl/curl/pull/1392

Daniel Stenberg (22 Apr 2017)
- [Alan Jenkins brought this change]

 multi: clarify condition in curl_multi_wait
 
 `if(nfds || extra_nfds) {` is followed by `malloc(nfds * ...)`.
 
 If `extra_fs` could be non-zero when `nfds` was zero, then we have
 `malloc(0)` which is allowed to return `NULL`. But, malloc returning
 NULL can be confusing. In this code, the next line would treat the NULL
 as an allocation failure.
 
 It turns out, if `nfds` is zero then `extra_nfds` must also be zero.
 The final value of `nfds` includes `extra_nfds`. So the test for
 `extra_nfds` is redundant. It can only confuse the reader.
 
 Closes #1439

Marcel Raad (22 Apr 2017)
- lib: fix maybe-uninitialized warnings
 
 With -Og, GCC complains:
 
 easy.c:628:7: error: ‘mcode’ may be used uninitialized in this function [-Werror=maybe-uninitialized]
 
 ../lib/strcase.h:35:29: error: ‘tok_buf’ may be used uninitialized in this function [-Werror=maybe-uninitialized]
 vauth/digest.c:208:9: note: ‘tok_buf’ was declared here
 
 ../lib/strcase.h:35:29: error: ‘tok_buf’ may be used uninitialized in this function [-Werror=maybe-uninitialized]
 vauth/digest.c:566:15: note: ‘tok_buf’ was declared here
 
 Fix this by initializing the variables.

Dan Fandrich (22 Apr 2017)
- gnutls: removed some code when --disable-verbose is configured
 
 This reduces the binary size and fixes a compile warning.

Daniel Stenberg (22 Apr 2017)
- llist: no longer uses malloc
 
 The 'list element' struct now has to be within the data that is being
 added to the list. Removes 16.6% (tiny) mallocs from a simple HTTP
 transfer. (96 => 80)
 
 Also removed return codes since the llist functions can't fail now.
 
 Test 1300 updated accordingly.
 
 Closes #1435

Marcel Raad (21 Apr 2017)
- typecheck-gcc: handle function pointers properly
 
 All the callbacks passed to curl_easy_setopt are defined as function
 pointers. The possibility to pass both functions and function pointers
 was handled for the callbacks that typecheck-gcc.h defined as
 compatible, but not for the public callback types themselves.
 
 This makes all compatible callback types defined in typecheck-gcc.h
 function pointers too and checks all functions uniformly with
 _curl_callback_compatible, which handles both functions and function
 pointers.
 
 A symptom of the problem was a warning in tool_operate.c with
 --disable-libcurl-option and without --enable-debug as that file
 passes the callback functions to curl_easy_setopt directly.
 
 Fixes https://github.com/curl/curl/issues/1403
 Closes https://github.com/curl/curl/pull/1404

Dan Fandrich (21 Apr 2017)
- mbedtls: enable NTLM (& SMB) even if MD4 support is unavailable
 
 In that case, use libcurl's internal MD4 routine. This fixes tests 1013
 and 1014 which were failing due to configure assuming NTLM and SMB were
 always available whenever mbed TLS was in use (which is now true).

Daniel Stenberg (21 Apr 2017)
- tests: remove the html and PDF versions from the tarball

- openssl: fix memory leak in servercert
 
 ... when failing to get the server certificate.

- Revert "src/Makefile.am: avoid explicit $<"
 
 This reverts commit 5b4cbcf11d5100ff793a8e9edbaa6fe1fc7495f5.
 
 Since it broke out-of-tree builds from tarballs. See discussion in #1432

- bump: start working on next release

- src/Makefile.am: avoid explicit $<
 
 ... since apparently "BSD make" doesn't support it.
 
 Reported-by: Thomas Klausner
 Fixes #1432

Version 7.54.0 (19 Apr 2017)

Daniel Stenberg (19 Apr 2017)
- THANKS: add contributors from 7.54.0 release notes

- RELEASE-NOTES: curl 7.54.0

Marcel Raad (18 Apr 2017)
- nss: fix MinGW compiler warnings
 
 This fixes 3 warnings issued by MinGW:
 1. PR_ImportTCPSocket actually has a paramter of type PROsfd instead of
 PRInt32, which is 64 bits on Windows. Fixed this by including the
 corresponding header file instead of redeclaring the function, which is
 supported even though it is in the private include folder. [1]
 2. In 64-bit mode, size_t is 64 bits while CK_ULONG is 32 bits, so an explicit
 narrowing cast is needed.
 3. Curl_timeleft returns time_t instead of long since commit
 21aa32d30dbf319f2d336e0cb68d3a3235869fbb.
 
 [1] https://developer.mozilla.org/en-US/docs/Mozilla/Projects/NSPR/Reference/PR_ImportTCPSocket
 
 Closes https://github.com/curl/curl/pull/1393

Daniel Stenberg (18 Apr 2017)
- [Jay Satiro brought this change]

 TLS: Fix switching off SSL session id when client cert is used
 
 Move the sessionid flag to ssl_primary_config so that ssl and proxy_ssl
 will each have their own sessionid flag.
 
 Regression since HTTPS-Proxy support was added in cb4e2be. Prior to that
 this issue had been fixed in 247d890, CVE-2016-5419.
 
 Bug: https://github.com/curl/curl/issues/1341
 Reported-by: lijian996@users.noreply.github.com
 
 The new incarnation of this bug is called CVE-2017-7468 and is documented
 here: https://curl.haxx.se/docs/adv_20170419.html

- [David Benjamin brought this change]

 openssl: don't try to print nonexistant peer private keys
 
 X.509 certificates carry public keys, not private keys. Fields
 corresponding to the private half of the key will always be NULL.
 
 Closes #1425

- [David Benjamin brought this change]

 openssl: fix thread-safety bugs in error-handling
 
 ERR_error_string with NULL parameter is not thread-safe. The library
 writes the string into some static buffer. Two threads doing this at
 once may clobber each other and run into problems. Switch to
 ERR_error_string_n which avoids this problem and is explicitly
 bounds-checked.
 
 Also clean up some remnants of OpenSSL 0.9.5 around here. A number of
 comments (fixed buffer size, explaining that ERR_error_string_n was
 added in a particular version) date to when ossl_strerror tried to
 support pre-ERR_error_string_n OpenSSLs.
 
 Closes #1424

- [David Benjamin brought this change]

 openssl: make SSL_ERROR_to_str more future-proof
 
 Rather than making assumptions about the values, use a switch-case.
 
 Closes #1424

- [Daniel Gustafsson brought this change]

 code: fix typos and style in comments
 
 A few random typos, and minor whitespace cleanups, found in comments
 while reading code.
 
 Closes #1423

Marcel Raad (17 Apr 2017)
- extern-scan.pl: strip trailing CR
 
 This makes test 1135 pass with CRLF checkouts.
 
 Ref: https://github.com/curl/curl/pull/1344#issuecomment-289243166
 Closes https://github.com/curl/curl/pull/1422

- configure.ac: ignore CR after version numbers
 
 Ignore everything after the version numbers in LIBCURL_VERSION and
 LIBCURL_VERSION_NUM to ged rid of the extra CR character.
 This makes tests 1022 and 1023 pass on Linux with a CRLF checkout.
 
 Ref: https://github.com/curl/curl/pull/1344#issuecomment-289243166
 Closes https://github.com/curl/curl/pull/1422

- .gitattributes: force shell scripts to LF
 
 Bash on Linux errors out on CR characters.
 This makes tests 1221 and 1222 pass on Linux with a CRLF checkout.
 
 Ref: https://github.com/curl/curl/pull/1344#issuecomment-289243166
 Closes https://github.com/curl/curl/pull/1422

- unit1303: fix compiler warning
 
 MinGW-w64 complains:
 warning: conversion to 'long int' from 'time_t {aka long long int}' may
 alter its value [-Wconversion]
 Fix this by using the correct type.

Daniel Stenberg (16 Apr 2017)
- RELEASE-NOTES: synced with 1451271e0

- [Larry Stefani brought this change]

 http2: fix handle leak in error path
 
 Add missing newhandle free call in push_promise().
 
 Closes #1416

- [Larry Stefani brought this change]

 mbedtls: fix memory leak in error path
 
 Add missing our_ssl_sessionid free call in mbed_connect_step3().
 
 Closes #1417

Marcel Raad (15 Apr 2017)
- curl-compilers.m4: turn implicit function declarations into errors
 
 This adds -Werror-implicit-function-declaration for GCC 2.95+ so that
 these errors are visible at the point where they occur instead of only
 at link time.
 Implicit function declarations are illegal in C99 and C++ anyway, and
 the same warning has been turned into an error for ICC in commit
 3072c5b8a127057aa922b7c51051bbb4a630b091.
 
 Ref: https://gcc.gnu.org/onlinedocs/gcc-2.95.2/gcc_2.html#SEC8
 Ref: https://curl.haxx.se/mail/lib-2017-04/0001.html
 Closes https://github.com/curl/curl/pull/1419

- test1541: also test for CURL_PULL_WS2TCPIP_H
 
 Ref: https://github.com/curl/curl/issues/1408
 Closes https://github.com/curl/curl/pull/1412

- tests/server/util: prefer <poll.h> over <sys/poll.h>
 
 Follow-up to aa573c3c55cda72ec5ef677d87f6f46a53385f0c
 
 Ref: https://github.com/curl/curl/pull/1406

Daniel Stenberg (11 Apr 2017)
- Curl_expire_latest: ignore already expired timers
 
 If the existing timer is still in there but has expired, the new timer
 should be added.
 
 Reported-by: Rainer Canavan
 Bug: https://curl.haxx.se/mail/lib-2017-04/0030.html
 Closes #1407

- system.h: fix mingw section
 
 Reported-by: Marcel Raad
 Fixes #1408
 Closes #1409

Marcel Raad (11 Apr 2017)
- polarssl: unbreak build with versions < 1.3.8
 
 ssl_session_init was only introduced in version 1.3.8, the penultimate
 version. The function only contains a memset, so replace it with that.
 
 Suggested-by: Jay Satiro
 Fixes https://github.com/curl/curl/issues/1401

- poll: prefer <poll.h> over <sys/poll.h>
 
 The POSIX standard location is <poll.h>. Using <sys/poll.h> results in
 warning spam when using the musl standard library.
 
 Closes https://github.com/curl/curl/pull/1406

Daniel Stenberg (10 Apr 2017)
- [Alexis La Goutte brought this change]

 openssl: fix this statement may fall through [-Wimplicit-fallthrough=]
 
 Closes #1402

Kamil Dudka (10 Apr 2017)
- nss: load CA certificates even with --insecure
 
 ... because they may include an intermediate certificate for a client
 certificate and the intermediate certificate needs to be presented to
 the server, no matter if we verify the peer or not.
 
 Reported-by: thraidh
 Closes #851

Daniel Stenberg (10 Apr 2017)
- RELEASE-NOTES: synced with f9d1e9a27f7e1

Dan Fandrich (10 Apr 2017)
- libcurl-thread.3: fixed a bad macro that caused test 1140 to fail

Daniel Stenberg (9 Apr 2017)
- libcurl-thread.3: also mention threaded-resolver
 
 Reported-by: Alex Bligh
 Bug: https://curl.haxx.se/mail/lib-2017-04/0044.html

- .github/stale.yml: enable the stale bot
 
 Issues and PRs with no activity for 180 days will get marked as stale,
 and if no further activity happens within 14 more days, the issue gets
 closed.
 
 This follows our established policy of not letting stalled bugs "get in
 the way": https://curl.haxx.se/docs/bugs.html#Closing_off_stalled_bugs
 
 Closes #1398

Jay Satiro (8 Apr 2017)
- CURLINFO_SCHEME.3: fix variable type
 
 - Change documented param type to char ** from incorrect long *.

Marcel Raad (8 Apr 2017)
- INSTALL.md: fix secure transport configure arguments
 
 --without-ssl is needed instead of --with-winssl.

- vtls: fix unreferenced variable warnings
 
 ... by moving the variables into the correct #ifdef block.

Daniel Stenberg (7 Apr 2017)
- BUGS: "Bugs in old versions"

- system.h: add section for tcc
 
 Closes #1397

Marcel Raad (7 Apr 2017)
- schannel: fix compiler warnings
 
 When UNICODE is not defined, the Curl_convert_UTF8_to_tchar macro maps
 directly to its argument. As it is declared as a pointer to const and
 InitializeSecurityContext expects a pointer to non-const, both MSVC and MinGW
 issue a warning about implicitly casting away the const. Fix this by declaring
 the variables as pointers to non-const.
 
 Closes https://github.com/curl/curl/pull/1394

- [Isaac Boukris brought this change]

 sspi: print out InitializeSecurityContext() error message
 
 Reported-by: Carsten (talksinmath)
 
 Fixes #1384
 Closes #1395

- gtls: fix compiler warning
 
 Curl_timeleft returns time_t instead of long since commit
 21aa32d30dbf319f2d336e0cb68d3a3235869fbb.

Daniel Stenberg (6 Apr 2017)
- test1606: verify speedcheck

- low_speed_limit: improved function for longer time periods
 
 Previously, periods of fast speed between periods of slow speed would
 not count and could still erroneously trigger a timeout.
 
 Reported-by: Paul Harris
 Fixes #1345
 Closes #1390

- system.h: set sizeof long to 4 on "default 32 bit" systems
 
 Triggered a test failure on test 1541 for the build known as
 "Linux 4.4 i686 tcc 0.9.26 glibc 2.20"

Marcel Raad (6 Apr 2017)
- nss: fix build after e60fe20fdf94e829ba5fce33f7a9d6c281149f7d
 
 Curl_llist_alloc is now Curl_llist_init.
 
 Closes https://github.com/curl/curl/pull/1391

Daniel Stenberg (6 Apr 2017)
- INSTALL.cmake: more problems
 
 and mention specific issues where they are discussed

- test1541: ignore the curl_off_t variable type name comparison
 
 ... the sizes and the formatting strings are what's really important and
 avoids problems with int64_t vs "long long".
 
 Bug: https://curl.haxx.se/mail/lib-2017-04/0019.html

- Revert "configure: prefer 'long long' to int64_t for curl_off_t"
 
 This reverts commit 81284374bf3c670d2050f8562edeb69f060b07cc.
 
 Due to mingw32 brekage.

Marcel Raad (5 Apr 2017)
- tool_operate: fix MinGW compiler warning
 
 MinGW complains:
 tool_operate.c:197:15: error: comparison is always true due to limited range
 of data type [-Werror=type-limits]
 
 Fix this by only doing the comparison if 'long' is large enough to hold the
 constant it is compared with.
 
 Closes https://github.com/curl/curl/pull/1378

- tool_operate: move filetime code to its own function
 
 Ref: https://github.com/curl/curl/pull/1378

Daniel Stenberg (5 Apr 2017)
- configure: prefer 'long long' to int64_t for curl_off_t
 
 Since it is a native type and it makes it less complicated to find a
 matching one in system.h
 
 Bug: https://curl.haxx.se/mail/lib-2017-04/0010.html
 Reported-by: Dan Fandrich
 
 Closes #1388

- [Dániel Bakai brought this change]

 tests: added test for Curl_splaygetbest to unit1309
 
 This checks the new behavior of Curl_splaygetbest, so that the smallest
 node not larger than the key is removed, and FIFO behavior is kept even
 when there are multiple nodes with the same key.
 
 Closes #1358

- [Dániel Bakai brought this change]

 multi: fix queueing of pending easy handles
 
 Multi handles repeatedly invert the queue of pending easy handles when
 used with CURLMOPT_MAX_TOTAL_CONNECTIONS. This is caused by a multistep
 process involving Curl_splaygetbest and violates the FIFO property of
 the multi handle.
 This patch fixes this issue by redefining the "best" node in the
 context of timeouts as the "smallest not larger than now", and
 implementing the necessary data structure modifications to do this
 effectively, namely:
 - splay nodes with the same key are now stored in a doubly-linked
 circular list instead of a non-circular one to enable O(1)
 insertion to the tail of the list
 - Curl_splayinsert inserts nodes with the same key to the tail of
 the same list
 - in case of multiple nodes with the same key, the one on the head of
 the list gets selected

Marcel Raad (4 Apr 2017)
- tool: fix Windows Unicode build
 
 ... by explicitly calling the ANSI versions of Windows API functions where
 required.

Daniel Stenberg (4 Apr 2017)
- [Martin Kepplinger brought this change]

 curl_sasl: declare mechtable static
 
 struct mechtable is only used locally here. It can be declared static.

Jay Satiro (4 Apr 2017)
- [Antti Hätälä brought this change]

 url: don't free postponed data on connection reuse
 
 - Don't free postponed data on a connection that will be reused since
 doing so can cause data loss when pipelining.
 
 Only Windows builds are affected by this.
 
 Closes https://github.com/curl/curl/issues/1380

Daniel Stenberg (4 Apr 2017)
- RELEASE-NOTES: synced with 4f2e348f9b42c69c480

- hash: move key into hash struct to reduce mallocs
 
 This removes one tiny malloc for each hash struct allocated. In a simple
 case like "curl localhost", this save three mallocs.
 
 Closes #1376

- llist: replace Curl_llist_alloc with Curl_llist_init
 
 No longer allocate the curl_llist head struct for lists separately.
 
 Removes 17 (15%) tiny allocations in a normal "curl localhost" invoke.
 
 closes #1381

Jay Satiro (4 Apr 2017)
- easy: silence compiler warning
 
 Safe to silence warning adding time delta of poll, which can trigger on
 Windows since sizeof time_t > sizeof long.
 
 warning C4244: '+=' : conversion from 'time_t' to 'long', possible loss
 of data

Daniel Stenberg (4 Apr 2017)
- [Richlv brought this change]

 docs: minor typo in write-out.d
 
 Closes #1382

- include: curl/system.h is a run-time version of curlbuild.h
 
 system.h is aimed to replace curlbuild.h at a later point in time when
 we feel confident system.h works sufficiently well.
 
 curl/system.h is currently used in parallel with curl/curlbuild.h
 
 curl/system.h determines a data sizes, data types and include file
 status based on available preprocessor defines instead of getting
 generated at build-time. This, in order to avoid relying on a build-time
 generated file that makes it complicated to do 32 and 64 bit bields from
 the same installed set of headers.
 
 Test 1541 verifies that system.h comes to the same conclusion that
 curlbuild.h offers.
 
 Closes #1373

- multi: make curl_multi_wait avoid malloc in the typical case
 
 When only a few additional file descriptors are used, avoid the malloc.
 
 Closes #1377

Marcel Raad (3 Apr 2017)
- tests/server/util: remove in6addr_any for recent MinGW
 
 In ancient MinGW versions, in6addr_any was declared as extern, but not
 defined. Because of that, 22a0c57746ae12506b1ba0f0fafffd26c1907d6a added
 definitions for in6addr_any when compiling with MinGW. The bug was fixed in
 w32api version 3.6 from 2006, so this workaround is not needed anymore for
 recent versions.
 
 This fixes the following MinGW-w64 warnings because the MinGW-w64 version of
 IN6ADDR_ANY_INIT has the two additional braces inside the macro:
 util.c:59:14: warning: braces around scalar initializer
 util.c:59:40: warning: excess elements in scalar initializer
 
 Ref: https://sourceforge.net/p/mingw/mingw-org-wsl/ci/e4803e0da25c57ae1ad0fa75ae2b7182ff7fa339/tree/w32api/ChangeLog
 Closes https://github.com/curl/curl/pull/1379

Daniel Stenberg (3 Apr 2017)
- docs: added examples for CURLINFO_FILETIME.3 and CURLOPT_FILETIME.3

Jay Satiro (31 Mar 2017)
- fail-early.d: fix typos

- docs: Explain --fail-early does not imply --fail
 
 Closes https://github.com/curl/curl/pull/1375

Daniel Stenberg (1 Apr 2017)
- telnet: (win32) fix read callback return variable
 
 telnet.c(1427,21): warning: comparison of constant 268435456 with
 expression of type 'CURLcode' is always false
 
 telnet.c(1433,21): warning: comparison of constant 268435457 with
 expression of type 'CURLcode' is always false
 
 Reviewed-by: Jay Satiro
 Reported-by: Gisle Vanem
 Bug: https://github.com/curl/curl/issues/1225#issuecomment-290340890
 
 Closes #1374

- CTestConfig.cmake: removed, unused

- libcurl.def: removed, unused

- docs/index.html: removed, was not shipped anyway

- dist: add missing files to the tarball

Peter Wu (30 Mar 2017)
- cmake: fix build with cmake 2.8.12.2
 
 For some reason, CMake 2.8.12.2 did not expand the list argument in a
 single DEPENDS argument. Remove the quotes, so it gets expanded into
 multiple arguments for add_custom_command and add_custom_target.
 
 Fixes https://github.com/curl/curl/issues/1370
 Closes #1372

Marcel Raad (30 Mar 2017)
- ssh: fix narrowing conversion warning
 
 'left' is used as time_t but declared as long.
 MinGW complains:
 error: conversion to 'long int' from 'time_t {aka long long int}' may alter
 its value [-Werror=conversion]
 Changed the declaration to time_t.

- http2: silence unused parameter warnings
 
 In release mode, MinGW complains:
 error: unused parameter 'lib_error_code' [-Werror=unused-parameter]

Daniel Stenberg (30 Mar 2017)
- [Hanno Böck brought this change]

 curl: fix callback functions to match prototype
 
 The function tool_debug_cb doesn't match curl_debug_callback in curl.h
 (unsigned vs. signed char* for 3rd param).
 
 Bug: https://curl.haxx.se/mail/lib-2017-03/0120.html

- [Alexis La Goutte brought this change]

 gcc7: fix ‘*’ in boolean context, suggest ‘&&’ instead [-Wint-in-bool-context]
 
 Closes #1371

Marcel Raad (30 Mar 2017)
- schannel: fix unused variable warning
 
 If CURL_DISABLE_VERBOSE_STRINGS is defined, hostname is not used in
 schannel_connect_step3.

- connect: fix unreferenced parameter warning
 
 When CURL_DISABLE_VERBOSE_STRINGS is defined, the reason parameter in
 Curl_conncontrol is not used as the infof macro expands to nothing.

- select: use correct SIZEOF_ constant
 
 At least under Windows, there is no SIZEOF_LONG, so it evaluates to 0 even
 though sizeof(int) == sizeof(long). This should probably have been
 CURL_SIZEOF_LONG, but the type of timeout_ms changed from long to time_t
 anyway.
 This triggered MSVC warning C4668 about implicitly replacing undefined
 macros with '0'.
 
 Closes https://github.com/curl/curl/pull/1362

Daniel Stenberg (30 Mar 2017)
- cmake: add cmake file in docs/libcurl/opts/ to dist

- cmake: add more missing files to the dist

- docs/Makefile.am: include CMakeLists.txt in the dist tarball

Marcel Raad (29 Mar 2017)
- NTLM: check for features with #ifdef instead of #if
 
 Feature defines are normally checked with #ifdef instead of #if in the rest of
 the codebase. Additionally, some compilers warn when a macro is implicitly
 evaluated to 0 because it is not defined, which was the case here.
 
 Ref: https://github.com/curl/curl/pull/1362#discussion_r108605101
 Closes https://github.com/curl/curl/pull/1367

Daniel Stenberg (29 Mar 2017)
- [Hanno Böck brought this change]

 curl: fix callback argument inconsistency
 
 As you can see the callback definition uses a char* for the first
 argument, while the function uses a void*.
 
 URL: https://curl.haxx.se/mail/lib-2017-03/0116.html

- RELEASE-NOTES: synced with 556c51a2df

- [madblobfish brought this change]

 KNOWN_BUGS: typo
 
 Closes #1364

- [Maksim Stsepanenka brought this change]

 make: use the variable MAKE for recursive calls
 
 Closes #1366

- conncache: make hashkey avoid malloc
 
 ... to make it much faster. Idea developed with primepie on IRC.
 
 Closes #1365

Kamil Dudka (28 Mar 2017)
- http: do not treat FTPS over CONNECT as HTTPS
 
 If we use FTPS over CONNECT, the TLS handshake for the FTPS control
 connection needs to be initiated in the SENDPROTOCONNECT state, not
 the WAITPROXYCONNECT state. Otherwise, if the TLS handshake completed
 without blocking, the information about the completed TLS handshake
 would be saved to a wrong flag. Consequently, the TLS handshake would
 be initiated in the SENDPROTOCONNECT state once again on the same
 connection, resulting in a failure of the TLS handshake. I was able to
 observe the failure with the NSS backend if curl ran through valgrind.
 
 Note that this commit partially reverts curl-7_21_6-52-ge34131d.

Daniel Stenberg (28 Mar 2017)
- pause: handle mixed types of data when paused
 
 When receiving chunked encoded data with trailers, and the write
 callback returns PAUSE, there might be both body and header to store to
 resend on unpause. Previously libcurl returned error for that case.
 
 Added test case 1540 to verify.
 
 Reported-by: Stephen Toub
 Fixes #1354
 Closes #1357

Jay Satiro (28 Mar 2017)
- [Isaac Boukris brought this change]

 http: Fix proxy connection reuse with basic-auth
 
 When using basic-auth, connections and proxy connections
 can be re-used with different Authorization headers since
 it does not authenticate the connection (like NTLM does).
 
 For instance, the below command should re-use the proxy
 connection, but it currently doesn't:
 curl -v -U alice:a -x http://localhost:8181 http://localhost/
 --next -U bob:b -x http://localhost:8181 http://localhost/
 
 This is a regression since refactoring of ConnectionExists()
 as part of: cb4e2be7c6d42ca0780f8e0a747cecf9ba45f151
 
 Fix the above by removing the username and password compare
 when re-using proxy connection at proxy_info_matches().
 
 However, this fix brings back another bug would make curl
 to re-print the old proxy-authorization header of previous
 proxy basic-auth connection because it wasn't cleared.
 
 For instance, in the below command the second request should
 fail if the proxy requires authentication, but would succeed
 after the above fix (and before aforementioned commit):
 curl -v -U alice:a -x http://localhost:8181 http://localhost/
 --next -x http://localhost:8181 http://localhost/
 
 Fix this by clearing conn->allocptr.proxyuserpwd after use
 unconditionally, same as we do for conn->allocptr.userpwd.
 
 Also fix test 540 to not expect digest auth header to be
 resent when connection is reused.
 
 Signed-off-by: Isaac Boukris <iboukris@gmail.com>
 
 Closes https://github.com/curl/curl/pull/1350

- openssl: exclude DSA code when OPENSSL_NO_DSA is defined
 
 - Fix compile errors that occur in openssl.c when OpenSSL lib was
 built without DSA support.
 
 Bug: https://github.com/curl/curl/issues/1361
 Reported-by: neheb@users.noreply.github.com

- examples/fopen: checksrc compliance

Marcel Raad (28 Mar 2017)
- schannel: fix variable shadowing warning
 
 No need to redeclare the variable.

- multi: fix MinGW-w64 compiler warnings
 
 error: conversion to 'long int' from 'time_t {aka long long int}' may alter
 its value [-Werror=conversion]

- .gitattributes: turn off CRLF for *.am
 
 If Makefile.am uses CRLF, buildconf in a Windows checkout fails with:
 ".ibtoolize: error: AC_CONFIG_MACRO_DIRS([m4]) conflicts with
 ACLOCAL_AMFLAGS=-I m4"

Daniel Stenberg (26 Mar 2017)
- [klemens brought this change]

 spelling fixes
 
 Closes #1356

- curl: check for end of input in writeout backslash handling
 
 Reported-by: Brian Carpenter
 
 Added test 1442 to verify

Marcel Raad (24 Mar 2017)
- tests/README: make "Run" section foolproof
 
 curl must be built before building the tests.
 
 Closes https://github.com/curl/curl/pull/1352

Daniel Stenberg (23 Mar 2017)
- openssl: fix comparison between signed and unsigned integer expressions

Marcel Raad (23 Mar 2017)
- [Edward Kimmel brought this change]

 asiohiper: make sure socket is open in event_cb
 
 Send curl_socket_t to event_cb and make sure it hasn't been closed yet.
 
 Closes https://github.com/curl/curl/pull/1318

Dan Fandrich (23 Mar 2017)
- openssl: made the error table static const

Jay Satiro (23 Mar 2017)
- openssl: fall back on SSL_ERROR_* string when no error detail
 
 - If SSL_get_error is called but no extended error detail is available
 then show that SSL_ERROR_* as a string.
 
 Prior to this change there was some inconsistency in that case: the
 SSL_ERROR_* code may or may not have been shown, or may have been shown
 as unknown even if it was known.
 
 Ref: https://github.com/curl/curl/issues/1300
 
 Closes https://github.com/curl/curl/pull/1348

Dan Fandrich (23 Mar 2017)
- mkhelp: disable compression if the perl gzip module is unavailable
 
 This is nowadays included with the base perl distribution, but wasn't
 prior to about perl 5.14

Daniel Stenberg (23 Mar 2017)
- [Anders Roxell brought this change]

 tests/README: mention nroff for --manual tests
 
 Signed-off-by: Anders Roxell <anders.roxell@gmail.com>
 
 Closes #1342

- CURLINFO_PRIMARY_IP.3: add example

- travis: run tests-nonflaky instead of tests-full

- make: introduce 'test-nonflaky' target
 
 Running this in the root build dir will invoke the test suite to only
 run tests not marked as 'flaky'.

- test2033: flaky

Jay Satiro (21 Mar 2017)
- [Ales Mlakar brought this change]

 mbedtls: add support for CURLOPT_SSL_CTX_FUNCTION
 
 Ref: https://curl.haxx.se/mail/lib-2017-02/0097.html
 
 Closes https://github.com/curl/curl/pull/1272

Peter Wu (21 Mar 2017)
- cmake: add support for building HTML and PDF docs
 
 Note that for some reason there is this warning (that also exists with
 autotools, added since curl-7_15_1-94-ga718cb05f):
 
 docs/libcurl/curl_multi_socket_all.3:1: can't open `man3/curl_multi_socket.3': No such file or directory
 
 Additionally, adjust the roffit --mandir option to support creating
 links when doing out-of-tree builds.
 
 Ref: https://github.com/curl/curl/pull/1288

- cmake: build manual pages (including curl.1)
 
 Also make Perl mandatory to allow building the docs.
 
 While CMakeLists.txt could probably read the list of manual pages from
 Makefile.am, actually putting those in CMakeLists.txt is cleaner so that
 is what is done here.
 
 Fixes #1230
 Ref: https://github.com/curl/curl/pull/1288

- docs: split file lists into Makefile.inc
 
 For easier sharing with CMake. The contents were reformatted to use
 two-space indent and expanded tabs (matching lib/Makefile.common).
 
 Ref: https://github.com/curl/curl/pull/1288

Daniel Stenberg (21 Mar 2017)
- examples: comment typos in http2 examples

- RELEASE-NOTES: typo

- RELEASE-NOTES: synced with 6e0f26c8a8c28df

- multi: fix streamclose() crash in debug mode
 
 The code would refer to the wrong data pointer. Only debug builds do
 this - for verbosity.
 
 Reported-by: zelinchen@users.noreply.github.com
 Fixes #1329

- CONTRIBUTE: mention referring to github issues in commit msgs

Dan Fandrich (20 Mar 2017)
- runtests.pl: fixed display of the Gopher IPv6 port number

- tests: fixed the documented test server port numbers

- test714/5: added HTTP as a required feature
 
 These tests use an HTTP proxy so require that curl be built with HTTP
 support.

- tests: strip more options from non-HTTP --libcurl tests
 
 The CURLOPT_USERAGENT and CURLOPT_MAXREDIRS options are only set if HTTP
 support is available, so ignore them in tests where HTTP is not
 guaranteed.

Jay Satiro (18 Mar 2017)
- [Palo Markovic brought this change]

 darwinssl: fix typo in variable name
 
 Broken a week ago in 6448f98.
 
 Closes https://github.com/curl/curl/pull/1337

- tool_operate: Fix showing HTTPS-Proxy options on CURLE_SSL_CACERT
 
 - Show the HTTPS-proxy options on CURLE_SSL_CACERT if libcurl was built
 with HTTPS-proxy support.
 
 Prior to this change those options were shown only if an HTTPS-proxy was
 specified by --proxy, but that did not take into account environment
 variables such as http_proxy, https_proxy, etc. Follow-up to e1187c4.
 
 Bug: https://github.com/curl/curl/issues/1331
 Reported-by: Nehal J Wani

- CURLINFO_LOCAL_PORT.3: fix typo

Daniel Stenberg (16 Mar 2017)
- CURLINFO_LOCAL_PORT.3: added example

- SSLCERTS.md: mention HTTPS proxies and their separate options

- BINDINGS: a Delphi binding

- KNOWN_BUGS: remove libidn related issue
 
 ... as we no longer use libidn

Dan Fandrich (14 Mar 2017)
- build: removed redundant DEPENDENCIES from makefiles

Daniel Stenberg (13 Mar 2017)
- [Sylvestre Ledru brought this change]

 Improve code readbility
 
 ... by removing the else branch after a return, break or continue.
 
 Closes #1310

Jay Satiro (13 Mar 2017)
- [Anatol Belski brought this change]

 winbuild: add basic support for OpenSSL 1.1.x
 
 - Auto-detect OpenSSL 1.1 libs
 
 Closes https://github.com/curl/curl/pull/1322

Daniel Stenberg (13 Mar 2017)
- RELEASE-NOTES: synced with c25e0761d0fc49c4

- make: regenerate docs/curl.1 by runinng make in docs
 
 ... previously, docs/ was only a dist subdir, now also a build subdir.
 
 Reported-by: Dan Fandrich
 Bug: https://curl.haxx.se/mail/lib-2017-03/0017.html

Dan Fandrich (12 Mar 2017)
- test1440/1: depend on well-defined file: behaviour
 
 Depend on the known behaviour of URLs for nonexistent files rather than
 the undefined behaviour of URLs for directories (which fails on Windows).
 The test isn't about file: URLs at all, so the URL used doesn't really
 matter.

- tests: clear the SSL_CERT_FILE variable on --libcurl tests
 
 Otherwise, the contents will end up in the output and fail the
 verification.

- test1287: added verbose logs keyword

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

Jay Satiro (12 Mar 2017)
- [Desmond O. Chang brought this change]

 url: add option CURLOPT_SUPPRESS_CONNECT_HEADERS
 
 - Add new option CURLOPT_SUPPRESS_CONNECT_HEADERS to allow suppressing
 proxy CONNECT response headers from the user callback functions
 CURLOPT_HEADERFUNCTION and CURLOPT_WRITEFUNCTION.
 
 - Add new tool option --suppress-connect-headers to expose
 CURLOPT_SUPPRESS_CONNECT_HEADERS and allow suppressing proxy CONNECT
 response headers from --dump-header and --include.
 
 Assisted-by: Jay Satiro
 Assisted-by: CarloCannas@users.noreply.github.com
 Closes https://github.com/curl/curl/pull/783

- http_proxy: Ignore TE and CL in CONNECT 2xx responses
 
 A client MUST ignore any Content-Length or Transfer-Encoding header
 fields received in a successful response to CONNECT.
 "Successful" described as: 2xx (Successful). RFC 7231 4.3.6
 
 Prior to this change such a case would cause an error.
 
 In some ways this bug appears to be a regression since c50b878. Prior to
 that libcurl may have appeared to function correctly in such cases by
 acting on those headers instead of causing an error. But that behavior
 was also incorrect.
 
 Bug: https://github.com/curl/curl/issues/1317
 Reported-by: mkzero@users.noreply.github.com

- [Thomas Glanzmann brought this change]

 mbedtls: fix typo in variable name
 
 Broken a few days ago in 6448f98.
 
 Bug: https://curl.haxx.se/mail/lib-2017-03/0015.html

Michael Kaufmann (11 Mar 2017)
- tests: fix the authretry tests
 
 Do not call curl_easy_reset() between the requests, because the
 auth state must be preserved for these tests.
 
 Follow-up to 0afbcfd

- proxy: skip SSL initialization for closed connections
 
 This prevents a "Descriptor is not a socket" error for WinSSL.
 
 Reported-by: Antony74@users.noreply.github.com
 Reviewed-by: Jay Satiro
 
 Fixes https://github.com/curl/curl/issues/1239

- curl_easy_reset: Also reset the authentication state
 
 Follow-up to 5278462
 See https://github.com/curl/curl/issues/1095

- [Isaac Boukris brought this change]

 authneg: clear auth.multi flag at http_done
 
 This flag is meant for the current request based on authentication
 state, once the request is done we can clear the flag.
 
 Also change auth.multi to auth.multipass for better readability.
 
 Fixes https://github.com/curl/curl/issues/1095
 Closes https://github.com/curl/curl/pull/1326
 
 Signed-off-by: Isaac Boukris <iboukris@gmail.com>
 Reported-by: Michael Kaufmann

Dan Fandrich (11 Mar 2017)
- url: don't compile detect_proxy if HTTP support is disabled

- cmdline-opts: fixed a few typos

Daniel Stenberg (10 Mar 2017)
- README.md: add coverity and travis badges

- ISSUE_TEMPLATE: for bugs, ask questions on the mailing list
 
 and try to add the top comment within an HTML comment in the hope
 that it might get hidden if the text is kept

- openssl: add two /* FALLTHROUGH */ to satisfy coverity
 
 CID 1402159 and 1402158

- tests: disabled 1903 now
 
 Test 1903 is doing HTTP pipelining, and that is a timing and ordering
 sensitive operation and this fails far too often on the Travis CI
 leading to people more or less ignoring test failures there. Not good.
 
 The end of pipelning is probably coming sooner rather than later
 anyway...

Dan Fandrich (9 Mar 2017)
- tls-max.d: added to the makefile

- build: fixed making man page in out-of-tree tarball builds
 
 The man page taken from the release package is found in a different
 location than if it's built from source. It must be referenced as $< in
 the rule to get its correct location in the VPATH.

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

- polarssl: fixed compile errors introduced in 6448f98c

Daniel Stenberg (8 Mar 2017)
- bump: next release will be known as 7.54.0
 
 ...due to the newly added CURL_SSLVERSION_MAX_* functionality

- openssl: unbreak the build after 6448f98c1857de
 
 Verified with OpenSSL 1.1.0e and OpenSSL master (1.1.1)

Kamil Dudka (8 Mar 2017)
- [Jozef Kralik brought this change]

 vtls: add options to specify range of enabled TLS versions
 
 This commit introduces the CURL_SSLVERSION_MAX_* constants as well as
 the --tls-max option of the curl tool.
 
 Closes https://github.com/curl/curl/pull/1166

Daniel Stenberg (8 Mar 2017)
- RELEASE-NOTES: synced with 6888a670aa01

- MANPAGE: clarify the dash situation in meta data

- insecure.d: clarify that this is for server connections
 
 Assisted-by: Ray Satiro
 Bug: https://curl.haxx.se/mail/lib-2017-03/0002.html

Dan Fandrich (8 Mar 2017)
- test1260: added http as a required feature

Daniel Stenberg (7 Mar 2017)
- [Steve Brokenshire brought this change]

 maketgz: Run updatemanpages.pl to update man pages
 
 maketgz now runs scripts/updatemanpages.pl to update the man pages .TH
 section to use the current date and curl/libcurl version.
 
 (TODO Section 3.1)
 
 Closes #1058

- [Steve Brokenshire brought this change]

 gitignore: Ignore man page dist files
 
 Ignore man page dist files generated by scripts/updatemanpages.pl

- [Steve Brokenshire brought this change]

 Makefile.am: Remove distribution man pages when running 'make clean'

- [Steve Brokenshire brought this change]

 Makefile.am: Added scripts/updatemanpages.pl to EXTRA_DIST

- [Steve Brokenshire brought this change]

 updatemanpages.pl: Update man pages to use current date and versions
 
 Added script to update man pages to use the current date and
 curl/libcurl versions.
 
 updatemanpages.pl has three arrays: list of directories to look in,
 list of extensions to process, list of files to exclude from
 processing.
 
 Check man page in git repoistory using the date from the existing man
 page before updating to avoid updating the man page if no change is
 made.
 
 If data is received from the git command then update the man page with
 the current date and version otherwise leave alone.
 
 Applied patch from badger to make the date argument optional, change the
 git command used, added date argument to processfile subroutine and
 print to STDERR if no date is found in a man page.
 
 Added code to process the changed man page into a new man page with
 .dist added to the filename to keep the original source files unchanged.
 Updated POD documentation to reflect that the date argument optional.
 
 Code style is in line with CODE_STYLE.md.
 
 Directories: docs/ docs/libcurl/ docs/libcurl/opts/ tests/
 Extensions: .1 .3
 Excluded files: mk-ca-bundle.1 template.3
 
 (TODO Section 3.1)

- [Tatsuhiro Tsujikawa brought this change]

 http2: Fix assertion error on redirect with CL=0
 
 This fixes assertion error which occurs when redirect is done with 0
 length body via HTTP/2, and the easy handle is reused, but new
 connection is established due to hostname change:
 
 curl: http2.c:1572: ssize_t http2_recv(struct connectdata *,
 int, char *, size_t, CURLcode *):
 Assertion `httpc->drain_total >= data->state.drain' failed.
 
 To fix this bug, ensure that http2_handle_stream is called.
 
 Fixes #1286
 Closes #1302

- ares: Curl_resolver_wait_resolv: clear *entry first in function

- ares: better error return on timeouts
 
 Assisted-by: Ray Satiro
 
 Bug: https://curl.haxx.se/mail/lib-2017-03/0009.html

Jay Satiro (6 Mar 2017)
- KNOWN_BUGS: Add DarwinSSL won't import PKCS#12 without a password
 
 Bug: https://github.com/curl/curl/issues/1308
 Reported-by: Justin Clift

Dan Fandrich (6 Mar 2017)
- test1260: removed errant XML tag

Daniel Stenberg (6 Mar 2017)
- URL: return error on malformed URLs with junk after port number
 
 ... because it causes confusion with users. Example URLs:
 
 "http://[127.0.0.1]:11211:80" which a lot of languages' URL parsers will
 parse and claim uses port number 80, while libcurl would use port number
 11211.
 
 "http://user@example.com:80@localhost" which by the WHATWG URL spec will
 be treated to contain user name 'user@example.com' but according to
 RFC3986 is user name 'user' for the host 'example.com' and then port 80
 is followed by "@localhost"
 
 Both these formats are now rejected, and verified so in test 1260.
 
 Reported-by: Orange Tsai

- BINDINGS: update the Lua-cURL URL

- [Sylvestre Ledru brought this change]

 BINDINGS: add Scilab binding
 
 Closes #1312

- BINDINGS: add go-curl and perl6-net-curl
 
 Reported-by: Peter Pentchev

- BINDINGS: add misssing C++ bindings
 
 Reported-by: Giuseppe Persico

- ares: return error at once if timed out before name resolve starts
 
 Pointed-out-by: Ray Satiro
 Bug: https://curl.haxx.se/mail/lib-2017-03/0004.html

Peter Wu (5 Mar 2017)
- [Michael Maltese brought this change]

 CMake: Set at most one SSL library
 
 Ref: https://github.com/curl/curl/pull/1228

- [Michael Maltese brought this change]

 CMake: Add mbedTLS support
 
 Ref: https://github.com/curl/curl/pull/1228

- [Michael Maltese brought this change]

 CMake: Add DarwinSSL support
 
 Assisted-by: Simon Warta <simon@kullo.net>
 Ref: https://github.com/curl/curl/pull/1228

- [Michael Maltese brought this change]

 CMake: Reorganize SSL support, separate WinSSL and SSPI
 
 This is closer to how configure.ac does it
 
 Ref: https://github.com/curl/curl/pull/1228

Jay Satiro (4 Mar 2017)
- CURLOPT_SSL_CTX_FUNCTION.3: Fix EXAMPLE formatting errors
 
 .. also document that CURLE_NOT_BUILT_IN is a RETURN VALUE.
 
 Ref: https://github.com/curl/curl/pull/1290

Daniel Stenberg (4 Mar 2017)
- [Andrew Krieger brought this change]

 fix potential use of uninitialized variables
 
 MSVC with LTCG detects this at warning level 4.
 
 Closes #1304

Dan Fandrich (4 Mar 2017)
- [Sylvestre Ledru brought this change]

 fix some typos in the doc (#1306)

- tests: fixed a typo in some comments

Jay Satiro (3 Mar 2017)
- url: split off proxy init and parsing from create_conn
 
 Move the proxy parse/init into helper create_conn_helper_init_proxy to
 mitigate the chances some non-proxy code will be mistakenly added to it.
 
 Ref: https://github.com/curl/curl/issues/1274#issuecomment-281556510
 Ref: https://github.com/curl/curl/pull/1293
 
 Closes https://github.com/curl/curl/pull/1298

- [Alexis La Goutte brought this change]

 build: fix gcc7 implicit fallthrough warnings
 
 Mark intended fallthroughs with /* FALLTHROUGH */ so that gcc will know
 it's expected and won't warn on [-Wimplicit-fallthrough=].
 
 Closes https://github.com/curl/curl/pull/1297

- [Greg Rowe brought this change]

 configure: fix --with-zlib when a path is specified
 
 Prior to this change if you attempted to configure curl using
 --wtih-zlib and specified a path the path would be ignored if you also
 had pkg-config installed on your system. This situation can easily
 arise when you are cross compiling. This change moves the test for
 detecting zlib settings via pkg-config only if OPT_ZLIB is not set.
 
 Closes https://github.com/curl/curl/pull/1292

- [c4rlo brought this change]

 no-keepalive.d: fix typo
 
 Closes https://github.com/curl/curl/pull/1301

- checksrc.bat: Ignore curl_config.h.in, curl_config.h

- configure: fix for --enable-pthreads
 
 Better handle options conflicts that can occur if --enable-pthreads.
 
 Bug: https://github.com/curl/curl/pull/1295
 Reported-by: Marc-Antoine Perennou

- [JDepooter brought this change]

 darwinssl: Warn that disabling host verify also disables SNI
 
 In DarwinSSL the SSLSetPeerDomainName function is used to enable both
 sending SNI and verifying the host. When host verification is disabled
 the function cannot be called, therefore SNI is disabled as well.
 
 Closes https://github.com/curl/curl/pull/1240

Marcel Raad (28 Feb 2017)
- warnless: suppress compiler warning
 
 If size_t is 32 bits, MSVC warns:
 warning C4310: cast truncates constant value
 The warning is harmless as CURL_MASK_SCOFFT gets
 truncated to the maximum value of size_t.

Dan Fandrich (27 Feb 2017)
- tests: enable HTTP/2 tests to run with non-default port numbers

Marcel Raad (27 Feb 2017)
- digest_sspi: fix compilation warning
 
 MSVC complains:
 warning C4701: potentially uninitialized local variable 'output_token_len' used

Jay Satiro (26 Feb 2017)
- cyassl: get library version string at runtime
 
 wolfSSL >= 3.6.0 supports getting its library version string at runtime.

Dan Fandrich (26 Feb 2017)
- test1139: allow for the possibility that the man page is not rebuilt
 
 This is likely to be the case when building from a tar ball release
 package which includes a prebuilt man page. In that case, test the
 packaged man page instead. This only makes a difference when building
 out-of-tree (in-tree, the location in both cases is identical).

Jay Satiro (25 Feb 2017)
- [Isaac Boukris brought this change]

 url: fix unix-socket support for proxy-disabled builds
 
 Prior to this change if curl was built with Unix Socket support
 (--enable-unix-sockets) and without Proxy support (--disable-proxy) then
 unix socket options would erroneously be ignored.
 
 Regression introduced in:
 0b8d682f81ee9acb763dd4c9ad805fe08d1227c0
 
 Bug: https://github.com/curl/curl/issues/1274
 Reported-by: mccormickt12@users.noreply.github.com
 
 Closes https://github.com/curl/curl/pull/1289

Dan Fandrich (26 Feb 2017)
- gopher: fixed detection of an error condition from Curl_urldecode

- ftp: fixed a NULL pointer dereference on OOM

Jay Satiro (25 Feb 2017)
- [Peter Wu brought this change]

 docs: de-duplicate file lists in the Makefiles
 
 Make use of macro substitution of suffix patterns to remove duplication
 of manual names. This approach is portable according to
 http://pubs.opengroup.org/onlinepubs/009695399/utilities/make.html
 
 Closes https://github.com/curl/curl/pull/1287

Dan Fandrich (25 Feb 2017)
- ftp: removed an erroneous free in an OOM path

- proxy: fixed a memory leak on OOM

- tests: use consistent environment variables for setting charset
 
 The character set in POSIX is set by the locale defined by (in
 decreasing order of precedence) the LC_ALL, LC_CTYPE and LANG
 environment variables (CHARSET was used by libidn but not libidn2).
 LC_ALL is cleared to ensure that LC_CTYPE takes effect, but LC_ALL is
 not used to set the locale to ensure that other parts of the locale
 aren't overridden. Since there doesn't seem to be a cross-platform way
 of specifying a UTF-8 locale, and not all systems may support UTF-8, a
 <precheck> is used to skip the test if UTF-8 can't be verified to be
 available. Test 1035 was also converted to UTF-8 for consistency, as
 the actual character set used there is irrelevant to the test.
 
 This patch uses a different UTF-8 locale than the last attempt, namely
 en_US.UTF-8. This one has been verified on 7 different Linux and BSD
 distributions and is more complete and usable than the locale UTF-8 (on
 at least some systems).

- test557: explicitly use the C locale so the numeric output is as expected

Jay Satiro (25 Feb 2017)
- [Simon Warta brought this change]

 cmake: Replace invalid UTF-8 byte sequence
 
 - Change the encoding of the regex temp placeholder token to UTF-8.
 
 Prior to this change the file contained special chars in a different
 encoding than ASCII or UTF-8 making text editors and Python complain
 when reading the file.
 
 Closes https://github.com/curl/curl/pull/1271
 Closes https://github.com/curl/curl/pull/1275

Daniel Stenberg (24 Feb 2017)
- bump: work on the next release

Version 7.53.1 (24 Feb 2017)

Daniel Stenberg (24 Feb 2017)
- release: 7.53.1

- Revert "tests: use consistent environment variables for setting charset"
 
 This reverts commit ecd1d020abdae3c3ce3643ddab3106501e62e7c0.
 
 That commit caused test failures on my Debian Linux machine for all
 changed test cases. We need to reconsider how that should get done.

Dan Fandrich (23 Feb 2017)
- tests: use consistent environment variables for setting charset
 
 Character set in POSIX is set by the locale defined (in decreasing order
 of precedence) by the LC_ALL, LC_CTYPE and LANG environment variables (I
 believe CHARSET is only historic). LC_ALL is cleared to ensure that
 LC_CTYPE takes effect, but LC_ALL is not used to set the locale to
 ensure that other parts of the locale aren't overriden, if set. Since
 there doesn't seem to be a cross-platform way of specifying a UTF-8
 locale, and not all systems may support UTF-8, a <precheck> is used
 (where relevant) to skip the test if UTF-8 isn't in use. Test 1035 was
 also converted to UTF-8 for consistency, as the actual character set
 used there is irrelevant to the test.

Jay Satiro (23 Feb 2017)
- url: Default the CA proxy bundle location to CURL_CA_BUNDLE
 
 If the compile-time CURL_CA_BUNDLE location is defined use it as the
 default value for the proxy CA bundle location, which is the same as
 what we already do for the regular CA bundle location.
 
 Ref: https://github.com/curl/curl/pull/1257

Daniel Stenberg (23 Feb 2017)
- [Sergii Pylypenko brought this change]

 rand: added missing #ifdef HAVE_FCNTL_H around fcntl.h header
 
 Closes #1285

- TODO: "OPTIONS *"
 
 Closes #1280

- RELEASE-NOTES: synced with 443e5b03a7d441

- THANKS-filter: shachaf

- [İsmail Dönmez brought this change]

 tests: Set CHARSET & LANG to UTF-8 in 1035, 2046 and 2047
 
 Closes #1283
 Fixes #1277

- bump: 7.53.1 coming up
 
 synced with df665f4df0f7a352

- formdata: check for EOF when reading from stdin
 
 Reported-by: shachaf@users.noreply.github.com
 
 Fixes #1281

Jay Satiro (22 Feb 2017)
- docs: gitignore curl.1
 
 curl.1 is generated by the cmdline-opts script since 4c49b83.

Daniel Stenberg (22 Feb 2017)
- TODO: HTTP Digest using SHA-256

- TODO: brotli is deployed widely now

Jay Satiro (21 Feb 2017)
- [Viktor Szakats brought this change]

 urldata: include curl_sspi.h when Windows SSPI is enabled
 
 f77dabe broke builds in Windows using Windows SSPI but not Windows SSL.
 
 Bug: https://github.com/curl/curl/issues/1276
 Reported-by: jveazey@users.noreply.github.com

- url: Improve CURLOPT_PROXY_CAPATH error handling
 
 - Change CURLOPT_PROXY_CAPATH to return CURLE_NOT_BUILT_IN if the option
 is not supported, which is the same as what we already do for
 CURLOPT_CAPATH.
 
 - Change the curl tool to handle CURLOPT_PROXY_CAPATH error
 CURLE_NOT_BUILT_IN as a warning instead of as an error, which is the
 same as what we already do for CURLOPT_CAPATH.
 
 - Fix CAPATH docs to show that CURLE_NOT_BUILT_IN is returned when the
 respective CAPATH option is not supported by the SSL library.
 
 Ref: https://github.com/curl/curl/pull/1257

- cyassl: fix typo

Version 7.53.0 (22 Feb 2017)

Daniel Stenberg (22 Feb 2017)
- release: 7.53.0

- cookie: fix declaration of 'dup' shadows a global declaration

- TLS: make SSL_VERIFYSTATUS work again
 
 The CURLOPT_SSL_VERIFYSTATUS option was not properly handled by libcurl
 and thus even if the status couldn't be verified, the connection would
 be allowed and the user would not be told about the failed verification.
 
 Regression since cb4e2be7c6d42ca
 
 CVE-2017-2629
 Bug: https://curl.haxx.se/docs/adv_20170222.html
 
 Reported-by: Marcus Hoffmann

Jay Satiro (21 Feb 2017)
- digest_sspi: Handle 'stale=TRUE' directive in HTTP digest
 
 - If the server has provided another challenge use it as the replacement
 input token if stale=TRUE. Otherwise previous credentials have failed
 so return CURLE_LOGIN_DENIED.
 
 Prior to this change the stale directive was ignored and if another
 challenge was received it would cause error CURLE_BAD_CONTENT_ENCODING.
 
 Ref: https://tools.ietf.org/html/rfc2617#page-10
 
 Bug: https://github.com/curl/curl/issues/928
 Reported-by: tarek112@users.noreply.github.com

Daniel Stenberg (20 Feb 2017)
- smb: use getpid replacement for windows UWP builds
 
 Source: https://github.com/Microsoft/vcpkg/blob/7676b8780db1e1e591c4fc7eba4f96f73c428cb4/ports/curl/0002_fix_uwp.patch

- TODO: CURLOPT_RESOLVE for any port number
 
 Closes #1264

- RELEASE-NOTES: synced with af30f1152d43dcdb

- [Jean Gressmann brought this change]

 sftp: improved checks for create dir failures
 
 Since negative values are errors and not only -1. This makes SFTP upload
 with --create-dirs work (again).
 
 Closes #1269

Jay Satiro (20 Feb 2017)
- [Max Khon brought this change]

 digest_sspi: Fix nonce-count generation in HTTP digest
 
 - on the first invocation: keep security context returned by
 InitializeSecurityContext()
 
 - on subsequent invocations: use MakeSignature() instead of
 InitializeSecurityContext() to generate HTTP digest response
 
 Bug: https://github.com/curl/curl/issues/870
 Reported-by: Andreas Roth
 
 Closes https://github.com/curl/curl/pull/1251

- examples/multi-uv: checksrc compliance

Michael Kaufmann (19 Feb 2017)
- string formatting: fix 4 printf-style format strings

Dan Fandrich (18 Feb 2017)
- tests: removed the obsolete name parameter

Michael Kaufmann (18 Feb 2017)
- speed caps: update the timeouts if the speed is too low/high
 
 Follow-up to 4b86113
 
 Fixes https://github.com/curl/curl/issues/793
 Fixes https://github.com/curl/curl/issues/942

- docs: fix timeout handling in multi-uv example

- proxy: fix hostname resolution and IDN conversion
 
 Properly resolve, convert and log the proxy host names.
 Support the "--connect-to" feature for SOCKS proxies and for passive FTP
 data transfers.
 
 Follow-up to cb4e2be
 
 Reported-by: Jay Satiro
 Fixes https://github.com/curl/curl/issues/1248

Jay Satiro (17 Feb 2017)
- [Isaac Boukris brought this change]

 http: fix missing 'Content-Length: 0' while negotiating auth
 
 - While negotiating auth during PUT/POST if a user-specified
 Content-Length header is set send 'Content-Length: 0'.
 
 This is what we do already in HTTPREQ_POST_FORM and what we did in the
 HTTPREQ_POST case (regression since afd288b).
 
 Prior to this change no Content-Length header would be sent in such a
 case.
 
 Bug: https://curl.haxx.se/mail/lib-2017-02/0006.html
 Reported-by: Dominik Hölzl
 
 Closes https://github.com/curl/curl/pull/1242

Daniel Stenberg (16 Feb 2017)
- [Simon Warta brought this change]

 winbuild: add note on auto-detection of MACHINE in Makefile.vc
 
 Closes #1265

- RELEASE-PROCEDURE: update the upcoming release calendar

- TODO: consider file name from the redirected URL with -O ?
 
 It isn't easily solved, but with some thinking someone could probably
 come up with a working approach?
 
 Closes #1241

Jay Satiro (15 Feb 2017)
- tool_urlglob: Allow a glob range with the same start and stop
 
 For example allow ranges like [1-1] and [a-a] etc.
 
 Regression since 5ca96cb.
 
 Bug: https://github.com/curl/curl/issues/1238
 Reported-by: R. Dennis Steed

Daniel Stenberg (15 Feb 2017)
- axtls: adapt to API changes
 
 Builds with axTLS 2.1.2. This then also breaks compatibility with axTLS
 < 2.1.0 (the older API)
 
 ... and fix the session_id mixup brought in 04b4ee549
 
 Fixes #1220

- RELEASE-NOTES: synced with 690935390c29c

- [Nick Draffen brought this change]

 curl: fix typo in time condition warning message
 
 The warning message had a typo. The argument long form is --time-cond
 not --timecond
 
 Closes #1263

- smb: code indent

Jay Satiro (14 Feb 2017)
- configure: Allow disabling pthreads, fall back on Win32 threads
 
 When the threaded resolver option is specified for configure the default
 thread library is pthreads. This change makes it possible to
 --disable-pthreads and then configure can fall back on Win32 threads for
 native Windows builds.
 
 Closes https://github.com/curl/curl/pull/1260

Daniel Stenberg (13 Feb 2017)
- http2: fix memory-leak when denying push streams
 
 Reported-by: zelinchen@users.noreply.github.com
 Fixes #1229

Jay Satiro (11 Feb 2017)
- tool_operate: Show HTTPS-Proxy options on CURLE_SSL_CACERT
 
 When CURLE_SSL_CACERT occurs the tool shows a lengthy error message to
 the user explaining possible solutions such as --cacert and --insecure.
 
 This change appends to that message similar options --proxy-cacert and
 --proxy-insecure when there's a specified HTTPS proxy.
 
 Closes https://github.com/curl/curl/issues/1258

Daniel Stenberg (10 Feb 2017)
- cmdline-opts/page-footer: ftp.sunet.se is no longer an FTP mirror

- URL: only accept ";options" in SMTP/POP3/IMAP URL schemes
 
 Fixes #1252

Jay Satiro (9 Feb 2017)
- cmdline-opts/socks*: Mention --preproxy in --socks* opts
 
 - Document in --socks* opts they're still mutually exclusive of --proxy.
 
 Partial revert of 423a93c; I had misinterpreted the SOCKS proxy +
 HTTP/HTTPS proxy combination.
 
 - Document in --socks* opts that --preproxy can be used to specify a
 SOCKS proxy at the same time --proxy is used with an HTTP/HTTPS proxy.

Daniel Stenberg (9 Feb 2017)
- CURLOPT_SSL_VERIFYPEER.3: also the https proxy version

Kamil Dudka (9 Feb 2017)
- nss: make FTPS work with --proxytunnel
 
 If the NSS code was in the middle of a non-blocking handshake and it
 was asked to finish the handshake in blocking mode, it unexpectedly
 continued in the non-blocking mode, which caused a FTPS connection
 over CONNECT to fail with "(81) Socket not ready for send/recv".
 
 Bug: https://bugzilla.redhat.com/1420327

Daniel Stenberg (9 Feb 2017)
- examples/multithread.c: link to our multi-thread docs
 
 ... instead of the OpenSSL mutex page.

- http_proxy: avoid freeing static memory
 
 Follow up to 7fe81ec298e0: make sure 'host' is either NULL or malloced.

- [Cameron MacMinn brought this change]

 http_proxy: Fix tiny memory leak upon edge case connecting to proxy
 
 Fixes #1255

Michael Kaufmann (8 Feb 2017)
- polarssl, mbedtls: Fix detection of pending data
 
 Reported-by: Dan Fandrich
 Bug: https://curl.haxx.se/mail/lib-2017-02/0032.html

Dan Fandrich (7 Feb 2017)
- test1139: Added the --manual keyword since the manual is required

Daniel Stenberg (7 Feb 2017)
- RELEASE-NOTES: synced with 102454459dd688c

- THANKS-filter: polish some recent contributors

- http2: reset push header counter fixes crash
 
 When removing an easy handler from a multi before it completed its
 transfer, and it had pushed streams, it would segfault due to the pushed
 counted not being cleared.
 
 Fixed-by: zelinchen@users.noreply.github.com
 Fixes #1249

- [Markus Westerlind brought this change]

 transfer: only retry nobody-requests for HTTP
 
 Using sftp to delete a file with CURLOPT_NOBODY set with a reused
 connection would fail as curl expected to get some data. Thus it would
 retry the command again which fails as the file has already been
 deleted.
 
 Fixes #1243

Jay Satiro (7 Feb 2017)
- [Daniel Gustafsson brought this change]

 telnet: Fix typos
 
 Ref: https://github.com/curl/curl/pull/1245

- [Daniel Gustafsson brought this change]

 test552: Fix typos
 
 Closes https://github.com/curl/curl/pull/1245

- [Daniel Gustafsson brought this change]

 darwinssl: Avoid parsing certificates when not in verbose mode
 
 The information extracted from the server certificates in step 3 is only
 used when in verbose mode, and there is no error handling or validation
 performed as that has already been done. Only run the certificate
 information extraction when in verbose mode and libcurl was built with
 verbose strings.
 
 Closes https://github.com/curl/curl/pull/1246

- [JDepooter brought this change]

 schannel: Remove incorrect SNI disabled message
 
 - Remove the SNI disabled when host verification disabled message
 since that is incorrect.
 
 - Show a message for legacy versions of Windows <= XP that connections
 may fail since those versions of WinSSL lack SNI, algorithms, etc.
 
 Bug: https://github.com/curl/curl/pull/1240

Daniel Stenberg (7 Feb 2017)
- CHANGES: spell fix, use correct path to script

- CHANGES.0: removed
 
 This is the previously manually edited changelog, not touched since Aug
 2015. Still present in git for those who wants it.

Dan Fandrich (6 Feb 2017)
- cmdline-opts: Fixed build and test in out of source tree builds

Viktor Szakats (6 Feb 2017)
- use *.sourceforge.io and misc URL updates
 
 Ref: https://sourceforge.net/blog/introducing-https-for-project-websites/
 Closes: https://github.com/curl/curl/pull/1247

Jay Satiro (6 Feb 2017)
- docs: Add more HTTPS proxy documentation
 
 - Document HTTPS proxy type.
 
 - Document --write-out %{proxy_ssl_verify_result}.
 
 - Document SOCKS proxy + HTTP/HTTPS proxy combination.
 
 HTTPS proxy support was added in 7.52.0 for OpenSSL, GnuTLS and NSS.
 
 Ref: https://github.com/curl/curl/commit/cb4e2be

- OS400: Fix symbols
 
 - s/CURLOPT_SOCKS_PROXY/CURLOPT_PRE_PROXY
 Follow-up to 7907a2b and 845522c.
 
 - Fix incorrect id for CURLOPT_PROXY_PINNEDPUBLICKEY.
 
 - Add id for CURLOPT_ABSTRACT_UNIX_SOCKET.
 
 Bug: https://github.com/curl/curl/issues/1237
 Reported-by: jonrumsey@users.noreply.github.com

- [Sean Burford brought this change]

 cmake: Support curl --xattr when built with cmake
 
 - Test for and set HAVE_FSETXATTR when support for extended file
 attributes is present.
 
 Closes https://github.com/curl/curl/pull/1176

- [Adam Langley brought this change]

 openssl: Don't use certificate after transferring ownership
 
 SSL_CTX_add_extra_chain_cert takes ownership of the given certificate
 while, despite the similar name, SSL_CTX_add_client_CA does not. Thus
 it's best to call SSL_CTX_add_client_CA before
 SSL_CTX_add_extra_chain_cert, while the code still has ownership of the
 argument.
 
 Closes https://github.com/curl/curl/pull/1236

Daniel Stenberg (29 Jan 2017)
- [Antoine Aubert brought this change]

 mbedtls: implement CTR-DRBG and HAVEGE random generators
 
 closes #1227

- docs: we no longer ship HTML versions of man pages
 
 ... refer to the web site for the web versions.

- [railsnewbie257 brought this change]

 docs: proofread README.netware README.win32
 
 Closes #1231

- RELEASE-NOTES; synced with ab08d82648

Michael Kaufmann (28 Jan 2017)
- mbedtls: disable TLS session tickets
 
 SSL session reuse with TLS session tickets is not supported yet.
 Use SSL session IDs instead.
 
 See https://github.com/curl/curl/issues/1109

- gnutls: disable TLS session tickets
 
 SSL session reuse with TLS session tickets is not supported yet.
 Use SSL session IDs instead.
 
 Fixes https://github.com/curl/curl/issues/1109

- polarssl: fix hangs
 
 This bugfix is similar to commit c111178bd4.

Daniel Stenberg (27 Jan 2017)
- cookies: do not assume a valid domain has a dot
 
 This repairs cookies for localhost.
 
 Non-PSL builds will now only accept "localhost" without dots, while PSL
 builds okeys everything not listed as PSL.
 
 Added test 1258 to verify.
 
 This was a regression brought in a76825a5efa6b4

- TODO: remove "Support TLS v1.3"
 
 Support is trickling in already.

- [railsnewbie257 brought this change]

 INTERNALS.md: language improvements
 
 Closes #1226

- telnet: fix windows compiler warnings
 
 Thumbs-up-by: Jay Satiro
 
 Closes #1225

- VC: remove the makefile.vc6 build infra
 
 The winbuild/ build files is now the single MSVC makefile build choice.
 
 Closes #1215

- [Jay Satiro brought this change]

 cmdline-opts/gen.pl: Open input files in CRLF mode
 
 On Windows it's possible to have input files with CRLF line endings and
 a perl that defaults to LF line endings (eg msysgit). Currently that
 results in generator output of mixed line endings of CR, LF and CRLF.
 
 This change fixes that issue in the most succinct way by opening the
 files in :crlf text mode even when the perl being used does not default
 to that mode. (On operating systems that don't have a separate text mode
 it's essentially a no-op.) The output continues to be in the perl's
 native line ending.

- docs/curl.1: generate from the cmdline-opts script

- vtls: source indentation fix

- contri*.sh: cut off parentheses from names too

- RELEASE-NOTES: synced with 01ab7c30bba6f

- vtls: fix PolarSSL non-blocking handling
 
 A regression brought in cb4e2be
 
 Reported-by: Michael Kaufmann
 Bug: https://github.com/curl/curl/issues/1174#issuecomment-274018791

- [Antoine Aubert brought this change]

 vtls: fix mbedtls multi non blocking handshake.
 
 When using multi, mbedtls handshake is in non blocking mode. vtls must
 set wait for read/write flags for the socket.
 
 Closes #1223

- [Richy Kim brought this change]

 CURLOPT_BUFFERSIZE: support enlarging receive buffer
 
 Replace use of fixed macro BUFSIZE to define the size of the receive
 buffer. Reappropriate CURLOPT_BUFFERSIZE to include enlarging receive
 buffer size. Upon setting, resize buffer if larger than the current
 default size up to a MAX_BUFSIZE (512KB). This can benefit protocols
 like SFTP.
 
 Closes #1222

- sws: use SOCKERRNO, not errno
 
 Reported-by: Gisle Vanem

Michael Kaufmann (19 Jan 2017)
- KNOWN_BUGS: HTTP/2 server push enabled when no pushes can be accepted
 
 This has been implemented with commit 9ad034e.

Viktor Szakats (19 Jan 2017)
- *.rc: escape non-ASCII/non-UTF-8 character for clarity
 
 Closes https://github.com/curl/curl/pull/1217

Kamil Dudka (19 Jan 2017)
- docs: non-blocking SSL handshake is now supported with NSS
 
 Implemented since curl-7_36_0-130-g8868a22
 
 Reported-by: Fahim Chandurwala

Michael Kaufmann (18 Jan 2017)
- CURLOPT_CONNECT_TO: Fix compile warnings
 
 Fix compile warnings that appeared only when curl has been configured
 with '--disable-verbose'.

Daniel Stenberg (18 Jan 2017)
- usercertinmem.c: improve the short description

- parseurl: move back buffer to function scope
 
 Regression since 1d4202ad, which moved the buffer into a more narrow
 scope, but the data in that buffer was used outside of that more narrow
 scope.
 
 Reported-by: Dan Fandrich
 Bug: https://curl.haxx.se/mail/lib-2017-01/0093.html

Jay Satiro (17 Jan 2017)
- openssl: Fix random generation
 
 - Fix logic error in Curl_ossl_random.
 
 Broken a few days ago in 807698d.

Daniel Stenberg (17 Jan 2017)
- TODO: share OpenSSL contexts
 
 By supporting this, subsequent connects would load a lot less data from
 disk.
 
 Closes #1110

- bump: next release will be 7.53.0

Kamil Dudka (15 Jan 2017)
- nss: use the correct lock in nss_find_slot_by_name()

Alessandro Ghedini (15 Jan 2017)
- http2: disable server push if not requested
 
 Ref: https://github.com/curl/curl/pull/1160

Daniel Stenberg (14 Jan 2017)
- [railsnewbie257 brought this change]

 docs: improved language in README.md HISTORY.md CONTRIBUTE.md
 
 Closes #1211

Alessandro Ghedini (14 Jan 2017)
- http: print correct HTTP string in verbose output when using HTTP/2
 
 Before:
 ```
 % src/curl https://sigsegv.ninja/ -v --http2
 ...
 > GET / HTTP/1.1
 > Host: sigsegv.ninja
 > User-Agent: curl/7.52.2-DEV
 > Accept: */*
 >
 ...
 ```
 
 After:
 ```
 % src/curl https://sigsegv.ninja/ -v --http2
 ...
 > GET / HTTP/2
 > Host: sigsegv.ninja
 > User-Agent: curl/7.52.2-DEV
 > Accept: */*
 >
 ```

Daniel Stenberg (14 Jan 2017)
- TODO: send only part of --data
 
 Closes #1200

- TODO: implemened "--fail-fast to exit on first transfer fail"
 
 Even though it is called --fail-early

- TODO: Chunked transfer multipart formpost
 
 Closes #1139

- TODO: Improve formpost API, not just add an easy argument

- addrinfo: fix compiler warning on offsetof() use
 
 curl_addrinfo.c:519:20: error: conversion to ‘curl_socklen_t {aka
 unsigned int}’ from ‘long unsigned int’ may alter its value
 [-Werror=conversion]
 
 Follow-up to 1d786faee1046f

- THANKS-filter: Jiri Malak

- RELEASE-NOTES: synced with a7c73ae309c

Peter Wu (13 Jan 2017)
- [Isaac Boukris brought this change]

 unix_socket: add support for abstract unix domain socket
 
 In addition to unix domain sockets, Linux also supports an
 abstract namespace which is independent of the filesystem.
 
 In order to support it, add new CURLOPT_ABSTRACT_UNIX_SOCKET
 option which uses the same storage as CURLOPT_UNIX_SOCKET_PATH
 internally, along with a flag to specify abstract socket.
 
 On non-supporting platforms, the abstract address will be
 interpreted as an empty string and fail gracefully.
 
 Also add new --abstract-unix-socket tool parameter.
 
 Signed-off-by: Isaac Boukris <iboukris@gmail.com>
 Reported-by: Chungtsun Li (typeless)
 Reviewed-by: Daniel Stenberg
 Reviewed-by: Peter Wu
 Closes #1197
 Fixes #1061

Daniel Stenberg (13 Jan 2017)
- write-out.d: 'time_total' is not always shown with ms precision
 
 We have higher resolution since 7.52.0

- next.d: --trace and --trace-ascii are also global

- [Isaac Boukris brought this change]

 curl: reset the easy handle at --next
 
 So that only "global" options (verbose mostly) survive into the next
 transfer, and the others have to be set again unless default is fine.

- [Frank Gevaerts brought this change]

 docs: Add note about libcurl copying strings to CURLOPT_* manpages
 
 Closes #1169

- [Frank Gevaerts brought this change]

 CURLOPT_PREQUOTE.3: takes a struct curl_slist*, not a char*

- IDN: Use TR46 non-transitional
 
 Assisted-by: Tim Rühsen

- IDN: revert use of the transitional option
 
 It made the german ß get converted to ss, IDNA2003 style, and we can't
 have that for the .de TLD - a primary reason for our switch to IDNA2008.
 
 Test 165 verifies.

- [Tim Rühsen brought this change]

 IDN: Fix compile time detection of linidn2 TR46
 
 Follow-up to f30cbcac1
 
 Closes #1207

- [ERAMOTO Masaya brought this change]

 url: --noproxy option overrides NO_PROXY environment variable
 
 Under condition using http_proxy env var, noproxy list was the
 combination of --noproxy option and NO_PROXY env var previously. Since
 this commit, --noproxy option overrides NO_PROXY environment variable
 even if use http_proxy env var.
 
 Closes #1140

- [ERAMOTO Masaya brought this change]

 url: Refactor detect_proxy()
 
 If defined CURL_DISABLE_HTTP, detect_proxy() returned NULL. If not
 defined CURL_DISABLE_HTTP, detect_proxy() checked noproxy list.
 
 Thus refactor to set proxy to NULL instead of calling detect_proxy() if
 define CURL_DISABLE_HTTP, and refactor to call detect_proxy() if not
 define CURL_DISABLE_HTTP and the host is not in the noproxy list.

- [ERAMOTO Masaya brought this change]

 url: Fix NO_PROXY env var to work properly with --proxy option.
 
 The combination of --noproxy option and http_proxy env var works well
 both for proxied hosts and non-proxied hosts.
 
 However, when combining NO_PROXY env var with --proxy option,
 non-proxied hosts are not reachable while proxied host is OK.
 
 This patch allows us to access non-proxied hosts even if using NO_PROXY
 env var with --proxy option.

- [Tim Rühsen brought this change]

 IDN: Use TR46 'transitional' for toASCII translations
 
 References: http://unicode.org/faq/idn.html
 http://unicode.org/reports/tr46
 
 Closes #1206

- [railsnewbie257 brought this change]

 docs: FAQ MAIL-ETIQUETTE language fixes
 
 Closes #1194

- [Marcus Hoffmann brought this change]

 gnutls: check for alpn and ocsp in configure
 
 Check for presence of gnutls_alpn_* and gnutls_ocsp_* functions during
 configure instead of relying on the version number. GnuTLS has options
 to turn these features off and we ca just work with with such builds
 like we work with older versions.
 
 Signed-off-by: Marcus Hoffmann <m.hoffmann@cartelsol.com>
 
 Closes #1204

Jay Satiro (12 Jan 2017)
- url: Fix parsing for when 'file' is the default protocol
 
 Follow-up to 3463408.
 
 Prior to 3463408 file:// hostnames were silently stripped.
 
 Prior to this commit it did not work when a schemeless url was used with
 file as the default protocol.
 
 Ref: https://curl.haxx.se/mail/lib-2016-11/0081.html
 Closes https://github.com/curl/curl/pull/1124
 
 Also fix for drive letters:
 
 - Support --proto-default file c:/foo/bar.txt
 
 - Support file://c:/foo/bar.txt
 
 - Fail when a file:// drive letter is detected and not MSDOS/Windows.
 
 Bug: https://github.com/curl/curl/issues/1187
 Reported-by: Anatol Belski
 Assisted-by: Anatol Belski

Daniel Stenberg (12 Jan 2017)
- rand: make it work without TLS backing
 
 Regression introduced in commit f682156a4fc6c4
 
 Reported-by: John Kohl
 Bug: https://curl.haxx.se/mail/lib-2017-01/0055.html

Jay Satiro (12 Jan 2017)
- STARTTLS: Don't print response character in denied messages
 
 Both IMAP and POP3 response characters are used internally, but when
 appended to the STARTTLS denial message likely could confuse the user.
 
 Closes https://github.com/curl/curl/pull/1203

- smtp: Fix STARTTLS denied error message
 
 - Format the numeric denial code as an integer instead of a character.

Daniel Stenberg (11 Jan 2017)
- http2_send: avoid unsigned integer wrap around
 
 ... when checking for a too large request.

Jay Satiro (9 Jan 2017)
- [Jiri Malak brought this change]

 cmake: Fix passing _WINSOCKAPI_ macro to compiler
 
 Define _WINSOCKAPI_ blank rather than to 1 in order to match the value
 used by Microsoft's winsock header files.
 
 Closes https://github.com/curl/curl/pull/1195

Daniel Stenberg (9 Jan 2017)
- sws: retry send() on EWOULDBLOCK
 
 Fixes spurious test 1060 and 1061 failures on OpenBSD, Solaris and more.
 
 Bug: https://curl.haxx.se/mail/lib-2017-01/0009.html
 Reported-by: Christian Weisgerber

- RELEASE-NOTES: synced with a41e8592d6b3e58

- examples: make the C++ examples follow our code style too
 
 At least mostly, not counting // comments.

- [Aulddays brought this change]

 asiohiper: improved socket handling
 
 libcurl requires CURLMOPT_SOCKETFUNCTION to KEEP watching socket events
 and notify back. Modify event_cb() to continue watching events when
 fired.
 
 Fixes #1191
 Closes #1192
 Fixed-by: Mingliang Zhu

- [Jiří Malák brought this change]

 lib506: fix build for Open Watcom
 
 Rename symbol lock to locks to not clash with OW CRTL function name.
 
 Closes #1196

- ROADMAP: 2017 cleanup
 
 Removed items already fixed, clarified a few others.

- COPYING: update the generic copyright year range

- docs/silent: mention --show-error in --silent description
 
 Reported in #1190
 Reported-by: Dan Jacobson

- docs/page-header: mention how to disable the progress meter
 
 curl.1 is regenerated
 
 Fixes #1190

Dan Fandrich (7 Jan 2017)
- wolfssl: display negotiated SSL version and cipher

- wolfssl: support setting cipher list

Patrick Monnerat (6 Jan 2017)
- CIPHERS.md: document GSKit ciphers

Jay Satiro (5 Jan 2017)
- [peterpih brought this change]

 TheArtOfHttpScripting: grammar

Nick Zitzmann (3 Jan 2017)
- darwinssl: --insecure overrides --cacert if both settings are in use
 
 Fixes #1184

Jay Satiro (2 Jan 2017)
- docs/libcurl: TCP_KEEPALIVE start and interval default to 60
 
 Since the TCP keep-alive options were added in 705f0f7 the start and
 interval default values have been 60, but that wasn't documented.
 
 Bug: https://curl.haxx.se/mail/lib-2017-01/0000.html
 Reported-by: Praveen Pvs

Daniel Stenberg (29 Dec 2016)
- curl.h: CURLE_FUNCTION_NOT_FOUND is no longer in use
 
 This error code was once introduced when some library was dynamically
 loaded and a funciton within said library couldn't be found.

- content_encoding: change return code on a failure
 
 Failure to decompress is now a write error instead of the weird
 "function not found".

- page-footer: error 36 is protocol agnostic!

Jay Satiro (28 Dec 2016)
- tool_operate: Fix --remote-time incorrect times on Windows
 
 - Use Windows API SetFileTime to set the file time instead of utime.
 
 Avoid utime on Windows if possible because it may apply a daylight
 saving time offset to our UTC file time.
 
 Bug: https://curl.haxx.se/mail/archive-2016-11/0033.html
 Reported-by: Tim
 
 Closes https://github.com/curl/curl/pull/1121

Daniel Stenberg (29 Dec 2016)
- [Max Khon brought this change]

 digest_sspi: copy terminating NUL as well
 
 Curl_auth_decode_digest_http_message(): copy terminating NUL as later
 Curl_override_sspi_http_realm() expects a NUL-terminated string.
 
 Fixes #1180

- curl_formadd.3: CURLFORM_CONTENTSLENGTH not needed when chunked
 
 Mentioned in #1013

- [Kyselgov E.N brought this change]

 cmake: use crypt32.lib when building with OpenSSL on windows
 
 Reviewed-by: Peter Wu
 Closes #1149
 Fixes #1147

- [Chris Araman brought this change]

 darwinssl: fix CFArrayRef leak
 
 Reviewed-by: Nick Zitzmann
 Closes #1173

- [Chris Araman brought this change]

 darwinssl: fix iOS build
 
 Reviewed-by: Nick Zitzmann
 Fixes #1172

- curl: remove superfluous include file
 
 The <netinet/tcp.h> is a leftover from the past when TCP socket options
 were set in this file. This include causes build issues on AIX 4.3.
 
 Reported-by: Kim Minjoong
 
 Closes #1178

- RELEASE-NOTES: synced with a7b38c9dc98481e

- vtls: s/SSLEAY/OPENSSL
 
 Fixed an old leftover use of the USE_SSLEAY define which would make a
 socket get removed from the applications sockets to monitor when the
 multi_socket API was used, leading to timeouts.
 
 Bug: #1174

- docs/ciphers: link to our own new page about ciphers
 
 ... as the former ones always go stale!

- cmdline-opts/page-footer: add three more exit codes
 
 ... and regenerated curl.1

- formdata: use NULL, not 0, when returning pointers

- ftp: failure to resolve proxy should return that error code

- configure: accept --with-libidn2 instead
 
 ... which the help text already implied since we switched to libidn2
 from libidn in commit 9c91ec778104ae3b back in October 2016.
 
 Reported-by: Christian Weisgerber
 Bug: https://curl.haxx.se/mail/lib-2016-12/0110.html

- test1282: verify the ftp-gss check

- ftp-gss: check for init before use
 
 To avoid dereferencing a NULL pointer.
 
 Reported-by: Daniel Romero

Jay Satiro (24 Dec 2016)
- build-wolfssl: Sync config with wolfSSL 3.10
 
 wolfSSL configure script relevant changes from 3.9 to 3.10:
 
 - DES3 no longer enabled by default
 - Shamir no longer enabled by default
 - Extended master secret enabled by default
 - RSA and ECC timing protections enabled by default
 
 For backwards compatibility I enabled DES3 and ECC shamir config options
 (ie no change from 3.9), and the other changes are included.

- cyassl: use time_t instead of long for timeout

Daniel Stenberg (23 Dec 2016)
- bump: toward next release

- http: remove "Curl_http_done: called premature" message
 
 ... it only confuses people.

- openssl-random: check return code when asking for random
 
 and fail appropriately if it returns error

- gnutls-random: check return code for failed random

Version 7.52.1 (22 Dec 2016)

Daniel Stenberg (22 Dec 2016)
- RELEASE-NOTES: curl 7.52.1

- lib557.c: use a shorter MAXIMIZE representation
 
 Since several compilers had problems with the previous one
 
 Reported-by: Ray Satiro
 Bug: https://curl.haxx.se/mail/lib-2016-12/0098.html

- runtests: remove the valgrind parser
 
 Old legacy parsing that 1) hid problems for us and 2) probably isn't
 needed anymore.

- [Kamil Dudka brought this change]

 randit: store the value in the buffer

- tests/Makefile: run checksrc on debug builds
 
 ... just like we already do in src/ and lib/

- lib557: move the "enable LONGLINE" to allow more long lines
 
 This file is riddled with them...

- bump: toward next release

Marcel Raad (21 Dec 2016)
- lib: fix MSVC compiler warnings
 
 Visual C++ complained:
 warning C4267: '=': conversion from 'size_t' to 'long', possible loss of data
 warning C4701: potentially uninitialized local variable 'path' used

Version 7.52.0 (20 Dec 2016)

Daniel Stenberg (20 Dec 2016)
- THANKS: 13 new contributors from 7.52.0

- RELEASE-NOTES: 7.52.0

- ssh: inhibit coverity warning with (void)
 
 CID 1397391 (#1 of 1): Unchecked return value (CHECKED_RETURN)

- Curl_recv_has_postponed_data: silence compiler warnings
 
 Follow-up to d00f2a8f2

Jay Satiro (19 Dec 2016)
- tests: checksrc compliance

- http_proxy: Fix proxy CONNECT hang on pending data
 
 - Check for pending data before waiting on the socket.
 
 Bug: https://github.com/curl/curl/issues/1156
 Reported-by: Adam Langley

Daniel Stenberg (19 Dec 2016)
- cmdline-opts/tlsv1.d: rephrased

- [Dan McNulty brought this change]

 schannel: fix wildcard cert name validation on Win CE
 
 Fixes a few issues in manual wildcard cert name validation in
 schannel support code for Win32 CE:
 - when comparing the wildcard name to the hostname, the wildcard
 character was removed from the cert name and the hostname
 was checked to see if it ended with the modified cert name.
 This allowed cert names like *.com to match the connection
 hostname. This violates recommendations from RFC 6125.
 - when the wildcard name in the certificate is longer than the
 connection hostname, a buffer overread of the connection
 hostname buffer would occur during the comparison of the
 certificate name and the connection hostname.

- printf: fix floating point buffer overflow issues
 
 ... and add a bunch of floating point printf tests

- config-amigaos.h: (embarrassed) made the line shorter

- config-amigaos.h: fix bug report email reference

- RELEASE-NOTES: synced with 4517158abfeba

- CIPHERS.md: backtick the names to show underscores fine

- form-string.d: fix format mistake
 
 and regenerated curl.1
 
 Reported-by: Gisle Vanem

Michael Kaufmann (18 Dec 2016)
- openssl: simplify expression in Curl_ossl_version

- curl_easy_recv: Improve documentation and example program
 
 Follow-up to 82245ea: Fix the example program sendrecv.c (handle
 CURLE_AGAIN, handle incomplete send). Improve the documentation
 for curl_easy_recv() and curl_easy_send().
 
 Reviewed-by: Frank Meier
 Assisted-by: Jay Satiro
 
 See https://github.com/curl/curl/pull/1134

- [Isaac Boukris brought this change]

 Curl_getconnectinfo: avoid checking if the connection is closed
 
 It doesn't benefit us much as the connection could get closed at
 any time, and also by checking we lose the ability to determine
 if the socket was closed by reading zero bytes.
 
 Reported-by: Michael Kaufmann
 
 Closes https://github.com/curl/curl/pull/1134

Daniel Stenberg (18 Dec 2016)
- CIPHERS.md: attempt to document TLS cipher names
 
 As the official docs seems really hard to keep track of and link to over
 time

- curl.1: generated after 6cce4dbf830

- cmdline-opts/post30X.d: fix the RFC references

- curl.1: regenerated
 
 Fixed trailing whitespace and numerous formatting glitches

- cmdline-opts: formatting fixes

- curl_easy_setopt.3: removed CURLOPT_SOCKS_PROXYTYPE

- tool_getparam.c: make comments use the up-to-date option names

- manpage-scan.pl: allow deprecated options to get removed from curl.1
 
 --krb4, --ftp-ssl and --ftp-ssl-reqd no longer need to be documented in the
 man page

- cmdline-opts/gen.pl: trim off trailing spaces

- cmdline-opts/proxy-tlsuser.d: remove trailing .d

- curl_easy_setopt.3: CURLOPT_PRE_PROXY instead of CURLOPT_SOCKS_PROXY

- symbols: removed two, added one

- cmdline-opts: include the man page split up files in the dist

- curl.1: generated with gen.pl
 
 This is the first time we replace the manually edited curt.1 with the
 generated one created by gen.pl and the individual option documentation
 pages.
 
 Do not edit this file, edit the individual pages and regenerate this
 output.
 
 This file will be generated by the build system soon and then removed
 from git.

- cmdline-opts: added some missing info

- CURLINFO_SSL_VERIFYRESULT.3: language

- HTTPS-PROXY docs: update/polish

- cmdline-opts/page-header: mention it is generated
 
 ... to avoid people from trying to edit the pending curl.1 version that
 gets generated by gen.pl

- preproxy: renamed what was added as SOCKS_PROXY
 
 CURLOPT_SOCKS_PROXY -> CURLOPT_PRE_PROXY
 
 Added the corresponding --preroxy command line option. Sets a SOCKS
 proxy to connect to _before_ connecting to a HTTP(S) proxy.

- curl: normal socks proxies still use CURLOPT_PROXY
 
 ... the newly introduced CURLOPT_SOCKS_PROXY is special and should be
 asked for specially. (Needs new code.)
 
 Unified proxy type to a single variable in the config struct.

- CURLOPT_SOCKS_PROXYTYPE: removed
 
 This was added as part of the SOCKS+HTTPS proxy merge but there's no
 need to support this as we prefer to have the protocol specified as a
 prefix instead.

- curl_multi_socket.3: fix typo

- checksrc: warn for assignments within if() expressions
 
 ... they're already frowned upon in our source code style guide, this
 now enforces the rule harder.

- checksrc: stricter no-space-before-paren enforcement
 
 In order to make the code style more uniform everywhere

- ISSUE_TEMPLATE: try mentioning known bugs/todo in new issue template

- RELEASE-NOTES: synced with 71a55534fa6

- [Adam Langley brought this change]

 openssl: don't use OpenSSL's ERR_PACK.
 
 ERR_PACK is an internal detail of OpenSSL. Also, when using it, a
 function name must be specified which is overly specific: the test will
 break whenever OpenSSL internally change things so that a different
 function creates the error.
 
 Closes #1157

Dan Fandrich (5 Dec 2016)
- test2032: Mark test as flaky

Jay Satiro (3 Dec 2016)
- [Jeremy Pearson brought this change]

 libcurl-multi.3: typo
 
 Closes https://github.com/curl/curl/pull/1153

Dan Fandrich (2 Dec 2016)
- test1281: added http as a required feature

Daniel Stenberg (2 Dec 2016)
- curl: support zero-length argument strings in config files
 
 ... like 'user-agent = ""'
 
 Adjusted test 71 to verify.

- http_proxy: simplify CONNECT response reading
 
 Since it now reads responses one byte a time, a loop could be removed
 and it is no longer limited to get the whole response within 16K, it is
 now instead only limited to 16K maximum header line lengths.

- tests: fix CONNECT test cases to be more strict
 
 ... as they broke with the cleaned up CONNECT handling

- CONNECT: read responses one byte at a time
 
 ... so that it doesn't read data that is actually coming from the
 remote. 2xx responses have no body from the proxy, that data is from the
 peer.
 
 Fixes #1132

- CONNECT: reject TE or CL in 2xx responses
 
 A server MUST NOT send any Transfer-Encoding or Content-Length header
 fields in a 2xx (Successful) response to CONNECT. (RFC 7231 section
 4.3.6)
 
 Also fixes the three test cases that did this.

- URL parser: reject non-numerical port numbers
 
 Test 1281 added to verify

Dan Fandrich (30 Nov 2016)
- runtests: made Servers: output be more consistent by removing OFF

- cyassl: fixed typo introduced in 4f8b1774

Michael Kaufmann (30 Nov 2016)
- CURLOPT_CONNECT_TO: Skip non-matching "connect-to" entries properly
 
 If a port number in a "connect-to" entry does not match, skip this
 entry instead of connecting to port 0.
 
 If a port number in a "connect-to" entry matches, use this entry
 and look no further.
 
 Reported-by: Jay Satiro
 Assisted-by: Jay Satiro, Daniel Stenberg
 
 Closes #1148

Daniel Stenberg (29 Nov 2016)
- BUGS: describe bug handling process

- RELEASE-NOTES: synced with 19613fb3

Jay Satiro (28 Nov 2016)
- http2: check nghttp2_session_set_local_window_size exists
 
 The function only exists since nghttp2 1.12.0.
 
 Bug: https://github.com/curl/curl/commit/a4d8888#commitcomment-19985676
 Reported-by: Michael Kaufmann

Daniel Stenberg (28 Nov 2016)
- [Anders Bakken brought this change]

 http2: Fix crashes when parent stream gets aborted
 
 Closes #1125

- cmdline-docs: more options converted and fixed
 
 Now all options are in the new system.

- gen: include footer in mainpage output

Jay Satiro (28 Nov 2016)
- lib1536: checksrc compliance

Daniel Stenberg (28 Nov 2016)
- cmdline-opts: more command line options documented
 
 Moved over to the new format

- curl: remove --proxy-ssl* options
 
 There's mostly likely no need to allow setting SSLv2/3 version for HTTPS
 proxy. Those protocols are insecure by design and deprecated.

- CURLOPT_PROXY_*.3: polished some proxy option man pages

Patrick Monnerat (26 Nov 2016)
- os400: support CURLOPT_PROXY_PINNEDPUBLICKEY
 
 Also define it in ILE/RPG binding.

Daniel Stenberg (26 Nov 2016)
- [Okhin Vasilij brought this change]

 curl_version_info: add CURL_VERSION_HTTPS_PROXY
 
 Closes #1142

- [Frank Gevaerts brought this change]

 tests: Add some testcases for recent new features.
 
 Add missing tests for CURLINFO_SCHEME, CURLINFO_PROTOCOL, %{scheme},
 and %{http_version}
 
 closes #1143

- [Frank Gevaerts brought this change]

 curl_easy_reset: clear info for CULRINFO_PROTOCOL and CURLINFO_SCHEME

- CURLOPT_PROXY_CAINFO.3: clarify proxy use

- CURLOPT_PROXY_CRLFILE.3: clarify https proxy and availability

- curl_easy_setopt.3: add CURLOPT_PROXY_PINNEDPUBLICKEY
 
 Follow-up to 4f8b17743d7c55a

- docs: include all opts man pages in dist
 
 Sorted the lists too.
 
 ... and include the new ones in the PDF and HTML generation targets

- [Thomas Glanzmann brought this change]

 HTTPS Proxy: Implement CURLOPT_PROXY_PINNEDPUBLICKEY

- [Thomas Glanzmann brought this change]

 url: proxy: Use 443 as default port for https proxies

- TODO: removed "HTTPS proxy"

- [Jan-E brought this change]

 winbuild: add config option ENABLE_NGHTTP2
 
 Closes #1141

Jay Satiro (24 Nov 2016)
- tool_urlglob: Improve sanity check in glob_range
 
 Prior to this change we depended on errno if strtol could not perform a
 conversion. POSIX says EINVAL *may* be set. Some implementations like
 Microsoft's will not set it if there's no conversion.
 
 Ref: https://github.com/curl/curl/commit/ee4f7660#commitcomment-19658189

- tool_help: Change description for --retry-connrefused
 
 Ref: https://github.com/curl/curl/pull/1064#issuecomment-260052409

Patrick Monnerat (25 Nov 2016)
- os400: sync ILE/RPG binding

Jay Satiro (24 Nov 2016)
- test1135: Fix curl_easy_duphandle prototype for code style
 
 Follow-up to dbadaeb which changed the style.

- x509asn1: Restore the parameter check in Curl_getASN1Element
 
 - Restore the removed parts of the parameter check.
 
 Follow-up to 945f60e which altered the parameter check.

Daniel Stenberg (25 Nov 2016)
- RELEASE-NOTES: update option counters

- [Frank Gevaerts brought this change]

 add CURLINFO_SCHEME, CURLINFO_PROTOCOL, and %{scheme}
 
 Adds access to the effectively used protocol/scheme to both libcurl and
 curl, both in string and numeric (CURLPROTO_*) form.
 
 Note that the string form will be uppercase, as it is just the internal
 string.
 
 As these strings are declared internally as const, and all other strings
 returned by curl_easy_getinfo() are de-facto const as well, string
 handling in getinfo.c got const-ified.
 
 Closes #1137

- RELEASE-NOTES: synced with 63198a4750aeb

- curl.1: the new --proxy options ship in 7.52.0

- checksrc: move open braces to comply with function declaration style

- checksrc: detect wrongly placed open braces in func declarations

- checksrc: white space edits to comply to stricter checksrc

- checksrc: verify ASTERISKNOSPACE
 
 Detects (char*) and 'char*foo' uses.

- checksrc: code style: use 'char *name' style

- checksrc: add ASTERISKSPACE
 
 Verifies a 'char *name' style, with no space after the asterisk.

- openssl: remove dead code
 
 Coverity CID 1394666

- [Okhin Vasilij brought this change]

 HTTPS-proxy: fixed mbedtls and polishing

- darwinssl: adopted to the HTTPS proxy changes
 
 It builds and runs all test cases. No adaptations for actual HTTPS proxy
 support has been made.

- gtls: fix indent to silence compiler warning
 
 vtls/gtls.c: In function ‘Curl_gtls_data_pending’:
 vtls/gtls.c:1429:3: error: this ‘if’ clause does not guard... [-Werror=misleading-indentation]
 if(conn->proxy_ssl[connindex].session &&
 ^~
 vtls/gtls.c:1433:5: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the ‘if’
 return res;

- [Thomas Glanzmann brought this change]

 mbedtls: Fix compile errors

- [Alex Rousskov brought this change]

 proxy: Support HTTPS proxy and SOCKS+HTTP(s)
 
 * HTTPS proxies:
 
 An HTTPS proxy receives all transactions over an SSL/TLS connection.
 Once a secure connection with the proxy is established, the user agent
 uses the proxy as usual, including sending CONNECT requests to instruct
 the proxy to establish a [usually secure] TCP tunnel with an origin
 server. HTTPS proxies protect nearly all aspects of user-proxy
 communications as opposed to HTTP proxies that receive all requests
 (including CONNECT requests) in vulnerable clear text.
 
 With HTTPS proxies, it is possible to have two concurrent _nested_
 SSL/TLS sessions: the "outer" one between the user agent and the proxy
 and the "inner" one between the user agent and the origin server
 (through the proxy). This change adds supports for such nested sessions
 as well.
 
 A secure connection with a proxy requires its own set of the usual SSL
 options (their actual descriptions differ and need polishing, see TODO):
 
 --proxy-cacert FILE CA certificate to verify peer against
 --proxy-capath DIR CA directory to verify peer against
 --proxy-cert CERT[:PASSWD] Client certificate file and password
 --proxy-cert-type TYPE Certificate file type (DER/PEM/ENG)
 --proxy-ciphers LIST SSL ciphers to use
 --proxy-crlfile FILE Get a CRL list in PEM format from the file
 --proxy-insecure Allow connections to proxies with bad certs
 --proxy-key KEY Private key file name
 --proxy-key-type TYPE Private key file type (DER/PEM/ENG)
 --proxy-pass PASS Pass phrase for the private key
 --proxy-ssl-allow-beast Allow security flaw to improve interop
 --proxy-sslv2 Use SSLv2
 --proxy-sslv3 Use SSLv3
 --proxy-tlsv1 Use TLSv1
 --proxy-tlsuser USER TLS username
 --proxy-tlspassword STRING TLS password
 --proxy-tlsauthtype STRING TLS authentication type (default SRP)
 
 All --proxy-foo options are independent from their --foo counterparts,
 except --proxy-crlfile which defaults to --crlfile and --proxy-capath
 which defaults to --capath.
 
 Curl now also supports %{proxy_ssl_verify_result} --write-out variable,
 similar to the existing %{ssl_verify_result} variable.
 
 Supported backends: OpenSSL, GnuTLS, and NSS.
 
 * A SOCKS proxy + HTTP/HTTPS proxy combination:
 
 If both --socks* and --proxy options are given, Curl first connects to
 the SOCKS proxy and then connects (through SOCKS) to the HTTP or HTTPS
 proxy.
 
 TODO: Update documentation for the new APIs and --proxy-* options.
 Look for "Added in 7.XXX" marks.

Patrick Monnerat (24 Nov 2016)
- Declare endian read functions argument as a const pointer.
 This is done for all functions of the form Curl_read[136][624]_[lb]e.

- Limit ASN.1 structure sizes to 256K. Prevent some allocation size overflows.
 See CRL-01-006.

Jay Satiro (22 Nov 2016)
- url: Fix conn reuse for local ports and interfaces
 
 - Fix connection reuse for when the proposed new conn 'needle' has a
 specified local port but does not have a specified device interface.
 
 Bug: https://curl.haxx.se/mail/lib-2016-11/0137.html
 Reported-by: bjt3[at]hotmail.com

Daniel Stenberg (21 Nov 2016)
- rand: pass in number of randoms as an unsigned argument

Jay Satiro (20 Nov 2016)
- rand: Fix potentially uninitialized result warning

Marcel Raad (19 Nov 2016)
- vtls: fix build warnings
 
 Fix warnings about conversions from long to time_t in openssl.c and
 schannel.c.
 
 Follow-up to de4de4e3c7c

Daniel Stenberg (18 Nov 2016)
- [Marcel Raad brought this change]

 lib: fix compiler warnings after de4de4e3c7c
 
 Visual C++ now complains about implicitly casting time_t (64-bit) to
 long (32-bit). Fix this by changing some variables from long to time_t,
 or explicitly casting to long where the public interface would be
 affected.
 
 Closes #1131

Peter Wu (17 Nov 2016)
- [Isaac Boukris brought this change]

 Don't mix unix domain sockets with regular ones
 
 When reusing a connection, make sure the unix domain
 socket option matches.

Jay Satiro (17 Nov 2016)
- tests: Fix HTTP2-Settings header for huge window size
 
 Follow-up to a4d8888. Changing the window size in that commit resulted
 in a different HTTP2-Settings upgrade header, causing test 1800 to fail.

- http2: Use huge HTTP/2 windows
 
 - Improve performance by using a huge HTTP/2 window size.
 
 Bug: https://github.com/curl/curl/issues/1102
 Reported-by: afrind@users.noreply.github.com
 Assisted-by: Tatsuhiro Tsujikawa

Daniel Stenberg (16 Nov 2016)
- cmdline-docs: more conversion

- gen: support 'protos'
 
 and warn on unrecognized lines

- gen: support 'single' to make an individual page man page

- cmdline-docs: more options converted over

- gen: support 'redirect'
 
 ... and warn for too long --help lines

- cmdline/gen: replace options in texts better

Jay Satiro (16 Nov 2016)
- http2: Fix address sanitizer memcpy warning
 
 - In Curl_http2_switched don't call memcpy when src is NULL.
 
 Curl_http2_switched can be called like:
 
 Curl_http2_switched(conn, NULL, 0);
 
 .. and prior to this change memcpy was then called like:
 
 memcpy(dest, NULL, 0)
 
 .. causing address sanitizer to warn:
 
 http2.c:2057:3: runtime error: null pointer passed as argument 2, which
 is declared to never be null