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                                  Changelog

Version 8.2.1 (26 Jul 2023)

Daniel Stenberg (26 Jul 2023)

- RELEASE-NOTES: synced

  curl 8.2.1 release

- THANKS: add contributors from 8.2.1

- docs: provide more see also for cipher options

  More cross references. Hide nroff errors.

  Closes #11513

- docs: mark two TLS options for TLS, not SSL

  Closes #11514

Brad Harder (25 Jul 2023)

- curl_multi_wait.3: fix arg quoting to doc macro .BR

  Closes #11511

Daniel Stenberg (24 Jul 2023)

- RELEASE-NOTES: synced

Viktor Szakats (24 Jul 2023)

- cmake: update ngtcp2 detection

  Replace `OpenSSL` with `quictls` to follow the same change
  in the v0.17.0 ngtcp2 release.

  Follow-up to e0093b4b732f6495b0fb1cd6747cbfedcdcf63ed

  Closes #11508

Stefan Eissing (24 Jul 2023)

- http: VLH, very large header test and fixes

  - adding tests using very large passwords in auth
  - fixes general http sending to treat h3 like h2, and
    not like http1.1
  - eliminate H2_HEADER max definitions and use the commmon
    DYN_HTTP_REQUEST everywhere, different limits do not help
  - fix http2 handling of requests denied by nghttp2 on send
    to immediately report the refused stream

  Closes #11509

Andrei Rybak (23 Jul 2023)

- CONTRIBUTE: drop mention of copyright year ranges

  Year ranges in copyrights were dropped in commits [1] and [2].
  Verification of year ranges in copyrights was dropped from script
  'scripts/copyright.pl' in commit [3].  However, the corresponding
  passages in file 'docs/CONTRIBUTE.md' weren't updated.

  Drop mentions of copyright year ranges from 'docs/CONTRIBUTE.md'.

  [1] 2bc1d775f (copyright: update all copyright lines and remove year
      ranges, 2023-01-02)
  [2] c46761bd8 (tests/http: remove year ranges from copyrights,
      2023-03-14)
  [3] 0e293bacb (copyright.pl: cease doing year verifications, 2023-01-28)

  Closes #11504

- CONTRIBUTE: fix syntax in commit message description

  File 'docs/CONTRIBUTE.md' includes a description of how one should write
  commit messages in the curl project.  Different possible parts of the
  message are enclosed in square brackets.  One exception is the section
  describing how the curl project doesn't use "Signed-off-by" commit
  trailers [1], which is enclosed in an opening curly brace paired with a
  closing square bracket.

  Fix the enclosing square brackets in description of "Signed-off-by"
  trailers in commit messages in file 'docs/CONTRIBUTE.md'.

  [1] See description of option '--signoff' in Git documentation:
      https://git-scm.com/docs/git-commit

  Closes #11504

Daniel Stenberg (23 Jul 2023)

- src/mkhelp: strip off escape sequences

  At some point the nroff command stopped stripping off escape sequences,
  so then this script needs to do the job instead.

  Reported-by: VictorVG on github
  Fixes #11501
  Closes #11503

- KNOWN_BUGS: building for old macOS fails with gcc

  Closes #11441

Jacob Hoffman-Andrews (22 Jul 2023)

- rustls: update rustls-ffi 0.10.0

  This brings in version 0.21.0 of the upstream rustls implementation,
  which notable includes support for IP address certificates.

  Closes #10865

Brad Harder (22 Jul 2023)

- websocket: rename arguments/variables to match docs

  Pedantry/semantic-alignment between functions, docs, comments with
  respect to websocket protocol code; No functional change intended.

  * "totalsize", "framesize" becomes "fragsize" (we deal in frame fragments).

  * "sendflags" becomes "flags"

  * use canonical CURL *handle

  Closes #11493

Jan Macku (21 Jul 2023)

- bug_report: use issue forms instead of markdown template

  Issue forms allow you to define web-like input forms using YAML
  syntax. It allows you to guide the reporter to get the required
  information.

  Signed-off-by: Jan Macku <jamacku@redhat.com>
  Closes #11474

Daniel Stenberg (21 Jul 2023)

- TODO: Obey Retry-After in redirects

  (remove "Set custom client ip when using haproxy protocol" which was
  shipped in 8.2.0)

  Mentioned-by: Yair Lenga
  Closes #11447

- RELEASE-NOTES: synced

Oliver Roberts (21 Jul 2023)

- amissl: fix AmiSSL v5 detection

  Due to changes in the AmiSSL SDK, the detection needed adjusting.

  Closes #11477

Alois Klink (21 Jul 2023)

- unittest/makefile: remove unneeded unit1621_LDADD

  The `unit1621_LDADD` variable has the exact same value as the `LDADD`
  flag in `Makefile.am`, except without `@LDFLAGS@ @LIBCURL_LIBS@`.

  This was originally added by [98e6629][], but I can't see any reason
  why it exists, so we should remove it to clean things up.

  [98e6629]: https://github.com/curl/curl/commit/98e6629154044e4ab1ee7cff8351c7
  ebcb131e88

  Closes #11494

- unittest/makefile: remove unneeded unit1394_LDADD

  These custom `unit1394_LDADD` and similar automake overrides are no
  longer neded. They were originally added by added by [8dac7be][] for
  metalink support, but are no longer after [265b14d][] removed metalink.

  [8dac7be]: https://github.com/curl/curl/commit/8dac7be438512a8725d3c71e9139bd
  fdcac1ed8c
  [265b14d]: https://github.com/curl/curl/commit/265b14d6b37c4298bd5556fabcbc37
  d36f911693

  Closes #11494

- cmake: add `libcurlu`/`libcurltool` for unit tests

  Add a `libcurlu`/`libcurltool` static library that is compiled only for
  unit tests. We use `EXCLUDE_FROM_ALL` to make sure that they're not
  built by default, they're only built if unit tests are built.

  These libraries allow us to compile every unit test with CMake.

  Closes #11446

Daniel Stenberg (21 Jul 2023)

- test979: test -u with redirect to (the same) absolute host

  Verifies #11492

- transfer: do not clear the credentials on redirect to absolute URL

  Makes test 979 work. Regression shipped in 8.2.0 from commit
  dd4d1a26959f63a2c

  Fixes #11486
  Reported-by: Cloudogu Siebels
  Closes #11492

Jon Rumsey (20 Jul 2023)

- os400: correct EXPECTED_STRING_LASTZEROTERMINATED

  Correct EXPECTED_STRING_LASTZEROTERMINATED to account for
  CURLOPT_HAPROXY_CLIENT_IP which requires EBCDIC to ASCII conversion when
  passed into curl_easy_setopt().

  Closes #11476

Oliver Roberts (20 Jul 2023)

- amissl: add missing signal.h include

  In some environments, signal.h is already included, but not in others
  which cause compilation to fail, so explictly include it.

  Closes #11478

- amigaos: fix sys/mbuf.h m_len macro clash

  The updated Curl_http_req_make and Curl_http_req_make2 functions spawned
  a parameter called m_len. The AmigaOS networking headers, derived from
  NetBSD, contain "#define m_len m_hdr.mh_len" which clashes with
  this. Since we do not actually use mbuf, force the include file to be
  ignored, removing the clash.

  Closes #11479

Daniel Stenberg (20 Jul 2023)

- socks: print ipv6 address within brackets

  Fixes #11483
  Closes #11484

Christian Schmitz (20 Jul 2023)

- libcurl-errors.3: add CURLUE_OK

  Closes #11488

Oliver Roberts (20 Jul 2023)

- cfilters: rename close/connect functions to avoid clashes

  Rename `close` and `connect` in `struct Curl_cftype` for
  consistency and to avoid clashes with macros of the same name
  (the standard AmigaOS networking connect() function is implemented
  via a macro).

  Closes #11491

Stefan Eissing (20 Jul 2023)

- http2: fix regression on upload EOF handling

  - a regression introduced by c9ec85121110d7cbbbed2990024222c8f5b8afe5
    where optimization of small POST bodies leads to a new code path
    for such uploads that did not trigger the "done sending" event
  - add triggering this event for early "upload_done" situations

  Fixes #11485
  Closes #11487
  Reported-by: Aleksander Mazur

Daniel Stenberg (19 Jul 2023)

- configure: check for nghttp2_session_get_stream_local_window_size

  The http2 code uses it now. Introduced in nghttp2 1.15.0 (Sep 2016)

  Fixes #11470
  Reported-by: Paul Howarth
  Closes #11473

Stefan Eissing (19 Jul 2023)

- quiche: fix segfault and other things

  - refs #11449 where a segfault is reported when IP Eyeballing did
    not immediately connect but made several attempts
  - The transfer initiating the eyeballing was initialized  too early,
    leadding to references to the filter instance that was then
    replaced in the subsequent eyeball attempts. That led to a use
    after free in the buffer handling for the transfer
  - transfers are initiated now more lazy (like in the ngtcp2 filter),
    when the stream is actually opened
  - suppress reporting on quiche event errors for "other" transfers
    than the current one to not fail a transfer due to faults in
    another one.
  - revert recent return value handling for quiche_h3_recv_body()
    to not indicate an error but an EAGAIN situation. We wish quiche
    would document what functions return.

  Fixes #11449
  Closes #11469
  Reported-by: ウさん

Daniel Stenberg (19 Jul 2023)

- hostip: return IPv6 first for localhost resolves

  Fixes #11465
  Reported-by: Chilledheart on github
  Closes #11466

Harry Sintonen (19 Jul 2023)

- tool: fix tool_seek_cb build when SIZEOF_CURL_OFF_T > SIZEOF_OFF_T

  - a variable was renamed, and some use of it wasn't. this fixes the
    build.

  Closes #11468

Stefan Eissing (19 Jul 2023)

- quiche: fix lookup of transfer at multi

  - refs #11449 where weirdness in quiche multi connection tranfers was
    observed
  - fixes lookup of transfer for a quiche event to take the connection
    into account
  - formerly, a transfer with the same stream_id, but on another connection
    could be found

  Closes #11462

Daniel Stenberg (19 Jul 2023)

- RELEASE-NOTES: synced

  bump to 8.2.1

John Haugabook (19 Jul 2023)

- ciphers.d: put URL in first column

  This makes the URL turn into a link properly when "webified".

  Fixes https://github.com/curl/curl-www/issues/270
  Closes #11464

Version 8.2.0 (19 Jul 2023)

Daniel Stenberg (19 Jul 2023)

- RELEASE-NOTES: synced

  8.2.0 release

- THANKS-filter: strip out "GitHub"

- THANKS: add contributors from 8.2.0

- RELEASE-PROCEDURE.md: adjust the release dates

Stefan Eissing (17 Jul 2023)

- quiche: fix defects found in latest coverity report

  Closes #11455

Daniel Stenberg (17 Jul 2023)

- quiche: avoid NULL deref in debug logging

  Coverity reported "Dereference after null check"

  If stream is NULL and the function exits, the logging must not deref it.

  Closes #11454

Stefan Eissing (17 Jul 2023)

- http2: treat initial SETTINGS as a WINDOW_UPDATE

  - refs #11426 where spurious stalls on large POST requests
    are reported
  - the issue seems to involve the following
    * first stream on connection adds up to 64KB of POST
      data, which is the max default HTTP/2 stream window size
      transfer is set to HOLD
    * initial SETTINGS from server arrive, enlarging the stream
      window. But no WINDOW_UPDATE is received.
    * curl stalls
  - the fix un-HOLDs a stream on receiving SETTINGS, not
    relying on a WINDOW_UPDATE from lazy servers

  Closes #11450

Daniel Stenberg (17 Jul 2023)

- ngtcp2: assigning timeout, but value is overwritten before used

  Reported by Coverity

  Closes #11453

- krb5: add typecast to please Coverity

Derzsi Dániel (16 Jul 2023)

- wolfssl: support setting CA certificates as blob

  Closes #11445

- wolfssl: detect when TLS 1.2 support is not built into wolfssl

  Closes #11444

Graham Campbell (15 Jul 2023)

- CI: bump nghttp2 from 1.55.0 to 1.55.1

  Closes #11442

Daniel Stenberg (15 Jul 2023)

- curl: return error when asked to use an unsupported HTTP version

  When one of the following options are used but the libcurl in use does
  not support it:

  --http2
  --http2-prior-knowledge
  --proxy-http2

  Closes #11440

Chris Paulson-Ellis (14 Jul 2023)

- cf-socket: don't bypass fclosesocket callback if cancelled before connect

  After upgrading to 8.1.2 from 7.84.0, I found that sockets were being
  closed without calling the fclosesocket callback if a request was
  cancelled after the associated socket was created, but before the socket
  was connected. This lead to an imbalance of fopensocket & fclosesocket
  callbacks, causing problems with a custom event loop integration using
  the multi-API.

  This was caused by cf_socket_close() calling sclose() directly instead
  of calling socket_close() if the socket was not active. For regular TCP
  client connections, the socket is activated by cf_socket_active(), which
  is only called when the socket completes the connect.

  As far as I can tell, this issue has existed since 7.88.0. That is,
  since the code in question was introduced by:
      commit 71b7e0161032927cdfb4e75ea40f65b8898b3956
      Author: Stefan Eissing <stefan@eissing.org>
      Date:   Fri Dec 30 09:14:55 2022 +0100

          lib: connect/h2/h3 refactor

  Closes #11439

Daniel Stenberg (13 Jul 2023)

- tool_parsecfg: accept line lengths up to 10M

  Bumped from 100K set in 47dd957daff9

  Reported-by: Antoine du Hamel
  Fixes #11431
  Closes #11435

Stefan Eissing (13 Jul 2023)

- CI: brew fix for openssl in default path

  If brew install/update links openssl into /usr/local, it will be found
  before anything we add with `-isystem path` to CPP/LDLFAGS.  Get rid of
  that by unlinking the keg.

  Fixes #11413
  Closes #11436

Daniel Stenberg (13 Jul 2023)

- RELEASE-NOTES: synced

Ondřej Koláček (13 Jul 2023)

- sectransp: fix EOF handling

  Regression since the large refactor from 2022

  Closes #11427

Daniel Stenberg (13 Jul 2023)

- checksrc: quote the file name to work with "funny" letters

  Closes #11437

Karthikdasari0423 (13 Jul 2023)

- HTTP3.md: ngtcp2 updated to v0.17.0 and nghttp3 to v0.13.0

  Follow-up to e0093b4b732f6

  Closes #11433

Daniel Stenberg (13 Jul 2023)

- CURLOPT_MIMEPOST.3: clarify what setting to NULL means

  Follow-up to e08382a208d4e480

  Closes #11430

Tatsuhiro Tsujikawa (12 Jul 2023)

- ngtcp2: build with 0.17.0 and nghttp3 0.13.0

  - ngtcp2_crypto_openssl was renamed to ngtcp2_crypto_quictls.

  Closes #11428

- CI: Bump ngtcp2, nghttp3, and nghttp2

  Closes #11428

James Fuller (11 Jul 2023)

- example/maxconnects: set maxconnect example

  Closes #11343

Pontakorn Prasertsuk (11 Jul 2023)

- http2: send HEADER & DATA together if possible

  Closes #11420

Daniel Stenberg (11 Jul 2023)

- CI: use wolfSSL 5.6.3 in builds

  No using master anymore

  Closes #11424

SaltyMilk (11 Jul 2023)

- fopen: optimize

  Closes #11419

Daniel Stenberg (11 Jul 2023)

- cmake: make use of snprintf

  Follow-up to 935b1bd4544a23a91d68

  Closes #11423

Stefan Eissing (11 Jul 2023)

- macOS: fix taget detection

  - TARGET_OS_OSX is not always defined on macOS
  - this leads to missing symbol Curl_macos_init()
  - TargetConditionals.h seems to define these only when
    dynamic targets are enabled (somewhere?)
  - this PR fixes that on my macOS 13.4.1
  - I have no clue why CI builds worked without it

  Follow-up to c7308592fb8ba213fc2c1
  Closes #11417

Stan Hu (9 Jul 2023)

- hostip.c: Move macOS-specific calls into global init call

  https://github.com/curl/curl/pull/7121 introduced a macOS system call
  to `SCDynamicStoreCopyProxies`, which is invoked every time an IP
  address needs to be resolved.

  However, this system call is not thread-safe, and macOS will kill the
  process if the system call is run first in a fork. To make it possible
  for the parent process to call this once and prevent the crash, only
  invoke this system call in the global initialization routine.

  In addition, this change is beneficial because it:

  1. Avoids extra macOS system calls for every IP lookup.
  2. Consolidates macOS-specific initialization in a separate file.

  Fixes #11252
  Closes #11254

Daniel Stenberg (9 Jul 2023)

- docs: use a space after RFC when spelling out RFC numbers

  Closes #11382

Margu (9 Jul 2023)

- imap-append.c: update to make it more likely to work

  Fixes #10300
  Closes #11397

Emanuele Torre (9 Jul 2023)

- tool_writeout_json: fix encoding of control characters

  Control characters without a special escape sequence e.g. %00 or %06
  were being encoded as "u0006" instead of "\u0006".

  Ref: https://github.com/curl/trurl/pull/214#discussion_r1257487858
  Closes #11414

Stefan Eissing (9 Jul 2023)

- http3/ngtcp2: upload EAGAIN handling

  - refs #11389 where IDLE timeouts on upload are reported
  - reword ngtcp2 expiry handling to apply to both send+recv
    calls into the filter
  - EAGAIN uploads similar to the recent changes in HTTP/2, e.g.
    report success only when send data was ACKed.
  - HOLD sending of EAGAINed uploads to avoid cpu busy loops
  - rename internal function for consistency with HTTP/2
    implementation

  Fixes #11389
  Closes #11390

Brian Nixon (9 Jul 2023)

- tool_easysrc.h: correct `easysrc_perform` for `CURL_DISABLE_LIBCURL_OPTION`

  Closes #11398

Daniel Stenberg (9 Jul 2023)

- RELEASE-NOTES: synced

- transfer: clear credentials when redirecting to absolute URL

  Make sure the user and password for the second request is taken from the
  redirected-to URL.

  Add test case 899 to verify.

  Reported-by: James Lucas
  Fixes #11410
  Closes #11412

Stefan Eissing (8 Jul 2023)

- hyper: fix EOF handling on input

  We ran out of disc space due to an infinite loop with debug logging

  Fixes #11377
  Closes #11385
  Reported-by: Dan Fandrich

- http2: raise header limitations above and beyond

  - not quite to infinity
  - rewrote the implementation of our internal HTTP/1.x request
    parsing to work with very large lines using dynbufs.
  - new default limit is `DYN_HTTP_REQUEST`, aka 1MB, which
    is also the limit of curl's general HTTP request processing.

  Fixes #11405
  Closes #11407

Juan Cruz Viotti (8 Jul 2023)

- curl_easy_nextheader.3: add missing open parenthesis examples

  Closes #11409
  Signed-off-by: Juan Cruz Viotti <jv@jviotti.com>

Dan Fandrich (7 Jul 2023)

- CI: enable verbose test output on pytest

  This shows individual pass/fail status on tests and makes this output
  consistent with other jobs' pytest invocations.

Stefan Eissing (28 Jun 2023)

- http2: fix crash in handling stream weights

  - Delay the priority handling until the stream has been opened.

  - Add test2404 to reproduce and verify.

  Weights may change "on the run", which is why there are checks in
  general egress handling. These must not trigger when the stream has not
  been opened yet.

  Reported-by: jbgoog@users.noreply.github.com

  Fixes https://github.com/curl/curl/issues/11379
  Closes https://github.com/curl/curl/pull/11384

- tests/http: Add mod_h2 directive `H2ProxyRequests`

  master of mod_h2 now requires H2ProxyRequests directives for forward
  proxying with HTTP/2 to work.

  Ref: https://github.com/icing/mod_h2/commit/3897a7086

  Closes https://github.com/curl/curl/pull/11392

Dan Fandrich (28 Jun 2023)

- CI: make Appveyor job names unique

  Two otherwise identical mingw-w64 jobs now have their differing compiler
  versions mentioned in their names.

Sheshadri.V (25 Jun 2023)

- curl.h: include <sys/select.h> for vxworks

  Closes #11356

Dan Fandrich (24 Jun 2023)

- CI: enable parallel make in more builds

  Most CI services provide at least two cores, so enable parallel make
  jobs to take advantage of that for builds. Some dependencies aren't safe
  to build in parallel so leave those as-is.  Also, rename a few
  workflows to eliminate duplicate names and provide a better idea what
  they're about.

- CI: don't install impacket if tests are not run

  It just wastes time and bandwidth and isn't even used.

divinity76 (24 Jun 2023)

- configure: the --without forms of the options are also gone

  --without-darwin-ssl and --without-metalink

  Closes #11378

Daniel Stenberg (23 Jun 2023)

- configure: add check for ldap_init_fd

  ... as otherwise the configure script will say it is OpenLDAP in the
  summary, but not set the USE_OPENLDAP define, therefor not using the
  intended OpenLDAP code paths.

  Regression since 4d7385446 (7.85.0)
  Fixes #11372
  Closes #11374
  Reported-by: vlkl-sap on github

Michał Petryka (23 Jun 2023)

- cmake: stop CMake from quietly ignoring missing Brotli

  The CMake project was set to `QUIET` for Brotli instead of
  `REQUIRED`. This makes builds unexpectedly ignore missing Brotli even
  when `CURL_BROTLI` is enabled.

  Closes #11376

Emanuele Torre (22 Jun 2023)

- docs: add more .IP after .RE to fix indentation of generate paragraphs

  follow-up from 099f41e097c030077b8ec078f2c2d4038d31353b

  I just thought of checking all the other files with .RE, and I found 6
  other files that were missing .IP at the end.

  Closes #11375

Stefan Eissing (22 Jun 2023)

- http2: h2 and h2-PROXY connection alive check fixes

  - fix HTTP/2 check to not declare a connection dead when
    the read attempt results in EAGAIN
  - add H2-PROXY alive check as for HTTP/2 that was missing
    and is needed
  - add attach/detach around Curl_conn_is_alive() and remove
    these in filter methods
  - add checks for number of connections used in some test_10
    proxy tunneling tests

  Closes #11368

- http2: error stream resets with code CURLE_HTTP2_STREAM

  - refs #11357, where it was reported that HTTP/1.1 downgrades
    no longer works
  - fixed with suggested change
  - added test_05_03 and a new handler in the curltest module
    to reproduce that downgrades work

  Fixes #11357
  Closes #11362
  Reported-by: Jay Satiro

Daniel Stenberg (22 Jun 2023)

- connect-timeout.d: mention that the DNS lookup is included

  Closes #11370

Emanuele Torre (22 Jun 2023)

- quote.d: fix indentation of generated paragraphs

  quote.d was missing a .IP at the end which caused the paragraphs
  generated for See-also, Multi, and Example to not be indented correctly.

  I also remove a redundant "This option can be used multiple times.", and
  replaced .IP "item" with .TP .B "item" to make more clear which lines
  are part of the list of commands and which aren't.

  Closes #11371

Paul Wise (22 Jun 2023)

- checksrc: modernise perl file open

  Use regular variables and separate file open modes from filenames.

  Suggested by perlcritic

  Copied from https://github.com/curl/trurl/commit/f2784a9240f47ee28a845

  Closes #11358

Dan Fandrich (21 Jun 2023)

- runtests: work around a perl without SIGUSR1

  At least msys2 perl v5.32.1 doesn't seem to define this signal. Since
  this signal is only used for debugging, just ignore if setting it fails.

  Reported-by: Marcel Raad
  Fixes #11350
  Closes #11366

- runtests: include missing valgrind package

  use valgrind was missing which caused torture tests with valgrind
  enabled to fail.

  Reported-by: Daniel Stenberg
  Fixes #11364
  Closes #11365

- runtests: use more consistent failure lines

  After a test failure log a consistent log message to make it easier to
  parse the log file.  Also, log a consistent message with "ignored" for
  failures that cause the test to be not considered at all. These should
  perhaps be counted in the skipped category, but this commit does not
  change that behaviour.

- runtests: consistently write the test check summary block

  The memory check character was erroneously omitted if the memory
  checking file was not available for some reason, making the block of
  characters an inconsistent length.

- test2600: fix the description

  It looks like it was cut-and-pasted.

  Closes #11354

Daniel Stenberg (21 Jun 2023)

- TODO: "Support HTTP/2 for HTTP(S) proxies" *done*

humbleacolyte (21 Jun 2023)

- cf-socket: move ctx declaration under HAVE_GETPEERNAME

  Closes #11352

Daniel Stenberg (20 Jun 2023)

- RELEASE-NOTES: synced

- example/connect-to: show CURLOPT_CONNECT_TO

  Closes #11340

Stefan Eissing (20 Jun 2023)

- hyper: unslow

  - refs #11203 where hyper was reported as being slow
  - fixes hyper_executor_poll to loop until it is out of
    tasks as advised by @seanmonstar in https://github.com/hyperium/hyper/issue
  s/3237
  - added a fix in hyper io handling for detecting EAGAIN
  - added some debug logs to see IO results
  - pytest http/1.1 test cases pass
  - pytest h2 test cases fail on connection reuse. HTTP/2
    connection reuse does not seem to work. Hyper submits
    a request on a reused connection, curl's IO works and
    thereafter hyper declares `Hyper: [1] operation was canceled: connection cl
  osed`
    on stderr without any error being logged before.

  Fixes #11203
  Reported-by: Gisle Vanem
  Advised-by: Sean McArthur
  Closes #11344

- HTTP/2: upload handling fixes

  - fixes #11242 where 100% CPU on uploads was reported
  - fixes possible stalls on last part of a request body when
    that information could not be fully send on the connection
    due to an EAGAIN
  - applies the same EGAIN handling to HTTP/2 proxying

  Reported-by: Sergey Alirzaev
  Fixed #11242
  Closes #11342

Daniel Stenberg (20 Jun 2023)

- example/opensslthreadlock: remove

  This shows how to setup OpenSSL mutex callbacks, but this is not
  necessary since OpenSSL 1.1.0 - meaning that no currently supported
  OpenSSL version requires this anymore

  Closes #11341

Dan Fandrich (19 Jun 2023)

- libtest: display the times after a test timeout error

  This is to help with test failure debugging.

  Ref: #11328
  Closes #11329

- test2600: bump a test timeout

  Case 1 failed at least once on GHA by going 30 msec too long.

  Ref: #11328

- runtests: better detect and handle pipe errors in the controller

  Errors reading and writing to the pipes are now better detected and
  propagated up to the main test loop so it can be cleanly shut down. Such
  errors are usually due to a runner dying so it doesn't make much sense
  to try to continue the test run.

- runtests: cleanly abort the runner if the controller dies

  If the controller dies unexpectedly, have the runner stop its servers
  and exit cleanly. Otherwise, the orphaned servers will stay running in
  the background.

- runtests: improve error logging

  Give more information about test harness error conditions to help figure
  out what might be wrong. Print some internal test state when SIGUSR1 is
  sent to runtests.pl.

  Ref: #11328

- runtests: better handle ^C during slow tests

  Since the SIGINT handler now just sets a flag that must be checked in the
  main controller loop, make sure that runs periodically.  Rather than
  blocking on a response from a test runner near the end of the test run,
  add a short timeout to allow it.

- runtests: rename server command file

  The name ftpserver.cmd was historical and has been used for more than
  ftp for many years now. Rename it to plain server.cmd to reduce
  confusion.

- tests: improve reliability of TFTP tests

  Stop checking the timeout used by the client under test (for most
  tests). The timeout will change if the TFTP test server is slow (such as
  happens on an overprovisioned CI server) because the client will retry
  and reduce its timeout, and the actual value is not important for most
  tests.

  test285 is changed a different way, by increasing the connect timeout.
  This improves test coverage by allowing the changed timeout value to be
  checked, but improves reliability with a carefully-chosen timeout that
  not only allows twice the time to respond as before, but also allows
  several retries before the client will change its timeout value.

  Ref: #11328

Daniel Stenberg (19 Jun 2023)

- cf-socket: skip getpeername()/getsockname for TFTP

  Since the socket is not connected then the call fails. When the call
  fails, failf() is called to write an error message that is then
  surviving and is returned when the *real* error occurs later. The
  earlier, incorrect, error therefore hides the actual error message.

  This could be seen in stderr for test 1007

  Test 1007 has now been extended to verify the stderr message.

  Closes #11332

- example/crawler: make it use a few more options

  For show, but reasonable

- libcurl-ws.3: mention raw mode

  Closes #11339

- example/default-scheme: set the default scheme for schemeless URLs

  Closes #11338

- example/hsts-preload: show one way to HSTS preload

  Closes #11337

- examples/http-options: show how to send "OPTIONS *"

  With CURLOPT_REQUEST_TARGET.

  Also add use of CURLOPT_QUICK_EXIT to show.

  Closes #11333

- examples: make use of CURLOPT_(REDIR_|)PROTOCOLS_STR

  To show how to use them

  Closes #11334

- examples/smtp-mime: use CURLOPT_MAIL_RCPT_ALLOWFAILS

  For show

  Closes #11335

- http: rectify the outgoing Cookie: header field size check

  Previously it would count the size of the entire outgoing request and
  not just the size of only the Cookie: header field - which was the
  intention.

  This could make the check be off by several hundred bytes in some cases.

  Closes #11331

Jay Satiro (17 Jun 2023)

- lib: fix some format specifiers

  - Use CURL_FORMAT_CURL_OFF_T where %zd was erroneously used for some
    curl_off_t variables.

  - Use %zu where %zd was erroneously used for some size_t variables.

  Prior to this change some of the Windows CI tests were failing because
  in Windows 32-bit targets have a 32-bit size_t and a 64-bit curl_off_t.
  When %zd was used for some curl_off_t variables then only the lower
  32-bits was read and the upper 32-bits would be read for part or all of
  the next specifier.

  Fixes https://github.com/curl/curl/issues/11327
  Closes https://github.com/curl/curl/pull/11321

Marcel Raad (16 Jun 2023)

- test427: add `cookies` feature and keyword

  This test doesn't work with `--disable-cookies`.

  Closes https://github.com/curl/curl/pull/11320

Chris Talbot (15 Jun 2023)

- imap: Provide method to disable SASL if it is advertised

  - Implement AUTH=+LOGIN for CURLOPT_LOGIN_OPTIONS to prefer plaintext
    LOGIN over SASL auth.

  Prior to this change there was no method to be able to fall back to
  LOGIN if an IMAP server advertises SASL capabilities. However, this may
  be desirable for e.g. a misconfigured server.

  Per: https://www.ietf.org/rfc/rfc5092.html#section-3.2

  ";AUTH=<enc-auth-type>" looks to be the correct way to specify what
  authenication method to use, regardless of SASL or not.

  Closes https://github.com/curl/curl/pull/10041

Daniel Stenberg (15 Jun 2023)

- RELEASE-NOTES: synced

- examples/multi-debugcallback.c: avoid the bool typedef

  Apparently this cannot be done in c23

  Reported-by: Cristian Rodríguez
  Fixes #11299
  Closes #11319

- docs/libcurl/libcurl.3: cleanups and improvements

  Closes #11317

- libcurl-ws.3: fix typo

- curl_ws_*.3: enhance

  - all: SEE ALSO the libcurl-ws man page
  - send: add example and return value information
  - meta: mention that the returned data is read-only

  Closes #11318

- docs/libcurl/libcurl-ws.3: see also CURLOPT_WS_OPTIONS

- docs/libcurl/libcurl-ws.3: minor polish

- libcurl-ws.3. WebSocket API overview

  Closes #11314

- libcurl-url.3: also mention CURLUPART_ZONEID

  ... and sort the two part-using lists alphabetically

Marcel Raad (14 Jun 2023)

- fopen: fix conversion warning on 32-bit Android

  When building for 32-bit ARM or x86 Android, `st_mode` is defined as
  `unsigned int` instead of `mode_t`, resulting in a
  -Wimplicit-int-conversion clang warning because `mode_t` is
  `unsigned short`. Add a cast to silence the warning.

  Ref: https://android.googlesource.com/platform/bionic/+/refs/tags/ndk-r25c/li
  bc/include/sys/stat.h#86
  Closes https://github.com/curl/curl/pull/11313

- http2: fix variable type

  `max_recv_speed` is `curl_off_t`, so using `size_t` might result in
  -Wconversion GCC warnings for 32-bit `size_t`. Visible in the NetBSD
  ARM autobuilds.

  Closes https://github.com/curl/curl/pull/11312

Daniel Stenberg (13 Jun 2023)

- vtls: fix potentially uninitialized local variable warnings

  Follow-up from a4a5e438ae533c

  Closes #11310

- timeval: use CLOCK_MONOTONIC_RAW if available

  Reported-by: Harry Sintonen
  Ref: #11288
  Closes #11291

Stefan Eissing (12 Jun 2023)

- tool: add curl command line option `--trace-ids`

  - added and documented --trace-ids to prepend (after the timestamp)
    the transfer and connection identifiers to each verbose log line
  - format is [n-m] with `n` being the transfer id and `m` being the
    connection id. In case there is not valid connection id, print 'x'.
  - Log calls with a handle that has no transfer id yet, are written
    without any ids.

  Closes #11185

- lib: add CURLINFO_CONN_ID and CURLINFO_XFER_ID

  - add an `id` long to Curl_easy, -1 on init
  - once added to a multi (or its own multi), it gets
    a non-negative number assigned by the connection cache
  - `id` is unique among all transfers using the same
    cache until reaching LONG_MAX where it will wrap
    around. So, not unique eternally.
  - CURLINFO_CONN_ID returns the connection id attached to
    data or, if none present, data->state.lastconnect_id
  - variables and type declared in tool for write out

  Closes #11185

Daniel Stenberg (12 Jun 2023)

- CURLOPT_INFILESIZE.3: mention -1 triggers chunked

  Ref: #11300
  Closes #11304

Philip Heiduck (12 Jun 2023)

- CI: openssl-3.0.9+quic

  Closes #11296

Karthikdasari0423 (12 Jun 2023)

- HTTP3.md: update openssl version

  Closes #11297

Daniel Stenberg (12 Jun 2023)

- vtls: avoid memory leak if sha256 call fails

  ... in the pinned public key handling function.

  Reported-by: lizhuang0630 on github
  Fixes #11306
  Closes #11307

- examples/ipv6: disable on win32

  I can't make if_nametoindex() work there

  Follow-up to c23dc42f3997acf23

  Closes #11305

- tool_operate: allow cookie lines up to 8200 bytes

  Since this option might set multiple cookies in the same line, it does
  not make total sense to cap this at 4096 bytes, which is the limit for a
  single cookie name or value.

  Closes #11303

- test427: verify sending more cookies than fit in a 8190 bytes line

  curl will then only populate the header with cookies that fit, dropping
  ones that otherwise would have been sent

  Ref: https://curl.se/mail/lib-2023-06/0020.html

  Closes #11303

- testutil: allow multiple %-operators on the same line

  Closes #11303

Oleg Jukovec (12 Jun 2023)

- docs: update CURLOPT_UPLOAD.3

  The behavior of CURLOPT_UPLOAD differs from what is described in the
  documentation. The option automatically adds the 'Transfer-Encoding:
  chunked' header if the upload size is unknown.

  Closes #11300

Daniel Stenberg (12 Jun 2023)

- RELEASE-NOTES: synced

- CURLOPT_AWS_SIGV4.3: remove unused variable from example

  Closes #11302

- examples/https.c: use CURLOPT_CA_CACHE_TIMEOUT

  for demonstration purposes

  Closes #11290

- example/ipv6: feature CURLOPT_ADDRESS_SCOPE in use

  Closes #11282

Karthikdasari0423 (10 Jun 2023)

- docs: Update HTTP3.md for newer ngtcp2 and nghttp3

  Follow-up to fb9b9b58

  Ref: #11184
  Closes #11295

Dan Fandrich (10 Jun 2023)

- docs: update the supported ngtcp2 and nghttp3 versions

  Follow-up to cae9d10b

  Ref: #11184
  Closes #11294

- tests: fix error messages & handling around sockets

  The wrong error code was checked on Windows on UNIX socket failures,
  which could have caused all UNIX sockets to be reported as having
  errored and the tests therefore skipped. Also, a useless error message
  was displayed on socket errors in many test servers on Windows because
  strerror() doesn't work on WinSock error codes; perror() is overridden
  there to work on all errors and is used instead.

  Ref #11258
  Closes #11265

Daniel Stenberg (9 Jun 2023)

- CURLOPT_SSH_PRIVATE_KEYFILE.3: expand on the file search

  Reported-by: atjg on github
  Ref: #11287
  Closes #11289

Stefan Eissing (9 Jun 2023)

- ngtcp2: use ever increasing timestamp in io

  - ngtcp2 v0.16.0 asserts that timestamps passed to its function
    will only ever increase.
  - Use a context shared between ingress/egress operations that
    uses a shared timestamp, regularly updated during calls.

  Closes #11288

Daniel Stenberg (9 Jun 2023)

- GHA: use nghttp2 1.54.0 for the ngtcp2 jobs

Philip Heiduck (9 Jun 2023)

- GHA: ngtcp2: use 0.16.0 and nghttp3 0.12.0

Daniel Stenberg (9 Jun 2023)

- ngtcp2: build with 0.16.0 and nghttp3 0.12.0

  - moved to qlog_write
  - crypto => encryption
  - CRYPTO => ENCRYPTION
  - removed "_is_"
  - ngtcp2_conn_shutdown_stream_read and
    ngtcp2_conn_shutdown_stream_write got flag arguments
  - the nghttp3_callbacks struct got a recv_settings callback

  Closes #11184

- example/http2-download: set CURLOPT_BUFFERSIZE

  Primarily because no other example sets it, and remove the disabling of
  the certificate check because we should not recommend that.

  Closes #11284

- example/crawler: also set CURLOPT_AUTOREFERER

  Could make sense, and it was not used in any example before.

  Closes #11283

Wyatt OʼDay (9 Jun 2023)

- tls13-ciphers.d: include Schannel

  Closes #11271

Daniel Stenberg (9 Jun 2023)

- curl_pushheader_byname/bynum.3: document in their own man pages

  These two functions were added in 7.44.0 when CURLMOPT_PUSHFUNCTION was
  introduced but always lived a life in the shadows, embedded in the
  CURLMOPT_PUSHFUNCTION man page. Until now.

  It makes better sense and gives more visibility to document them in
  their own stand-alone man pages.

  Closes #11286

- curl_mprintf.3: minor fix of the example

- curl_url_set: enforce the max string length check for all parts

  Update the docs and test 1559 accordingly

  Closes #11273

- examples/ftpuploadresume.c: add use of CURLOPT_ACCEPTTIMEOUT_MS

  For show

  Closes #11277

- examples/unixsocket.c: example using CURLOPT_UNIX_SOCKET_PATH

  and alternatively CURLOPT_ABSTRACT_UNIX_SOCKET

  Closes #11276

Anssi Kolehmainen (8 Jun 2023)

- docs: fix missing parameter names in examples

  Closes #11278

Daniel Stenberg (8 Jun 2023)

- urlapi: have *set(PATH) prepend a slash if one is missing

  Previously the code would just do that for the path when extracting the
  full URL, which made a subsequent curl_url_get() of the path to
  (unexpectedly) still return it without the leading path.

  Amend lib1560 to verify this. Clarify the curl_url_set() docs about it.

  Bug: https://curl.se/mail/lib-2023-06/0015.html
  Closes #11272
  Reported-by: Pedro Henrique

Dan Fandrich (7 Jun 2023)

- runtests; give each server a unique log lock file

  Logs are written by several servers and all of them must be finished
  writing before the test results can be determined. This means each
  server must have its own lock file rather than sharing a single one,
  which is how it was done up to now. Previously, the first server to
  complete a test would clear the lock before the other server was done,
  which caused flaky tests.

  Lock files are now all found in their own directory, so counting locks
  equals counting the files in that directory.  The result is that the
  proxy logs are now reliably written which actually changes the expected
  output for two tests.

  Fixes #11231
  Closes #11259

- runtests: make test file directories in log/N

  Test files in subdirectories were not created after parallel test log
  directories were moved down a level due to a now-bad comparison.

  Follow-up to 92d7dd39

  Ref #11264
  Closes #11267

Daniel Stenberg (7 Jun 2023)

- ws: make the curl_ws_meta() return pointer a const

  The returned info is read-only for the user.

  Closes #11261

- RELEASE-NOTES: synced

- runtests: move parallel log dirs from logN to log/N

  Having several hundreds of them in there gets annoying.

  Closes #11264

Dan Fandrich (7 Jun 2023)

- test447: move the test file into %LOGDIR

Viktor Szakats (7 Jun 2023)

- cmake: add support for "unity" builds

  Aka "jumbo" or "amalgamation" builds. It means to compile all sources
  per target as a single C source. This is experimental.

  You can enable it by passing `-DCMAKE_UNITY_BUILD=ON` to cmake.
  It requires CMake 3.16 or newer.

  It makes builds (much) faster, allows for better optimizations and tends
  to promote less ambiguous code.

  Also add a new AppVeyor CI job and convert an existing one to use
  "unity" mode (one MSVC, one MinGW), and enable it for one macOS CI job.

  Fix related issues:
  - add missing include guard to `easy_lock.h`.
  - rename static variables and functions (and a macro) with names reused
    across sources, or shadowed by local variables.
  - add an `#undef` after use.
  - add a missing `#undef` before use.
  - move internal definitions from `ftp.h` to `ftp.c`.
  - `curl_memory.h` fixes to make it work when included repeatedly.
  - stop building/linking curlx bits twice for a static-mode curl tool.
    These caused doubly defined symbols in unity builds.
  - silence missing extern declarations compiler warning for ` _CRT_glob`.
  - fix extern declarations for `tool_freq` and `tool_isVistaOrGreater`.
  - fix colliding static symbols in debug mode: `debugtime()` and
    `statename`.
  - rename `ssl_backend_data` structure to unique names for each
    TLS-backend, along with the `ssl_connect_data` struct member
    referencing them. This required adding casts for each access.
  - add workaround for missing `[P]UNICODE_STRING` types in certain Windows
    builds when compiling `lib/ldap.c`. To support "unity" builds, we had
    to enable `SCHANNEL_USE_BLACKLISTS` for Schannel (a Windows
    `schannel.h` option) _globally_. This caused an indirect inclusion of
    Windows `schannel.h` from `ldap.c` via `winldap.h` to have it enabled
    as well. This requires `[P]UNICODE_STRING` types, which is apperantly
    not defined automatically (as seen with both MSVS and mingw-w64).
    This patch includes `<subauth.h>` to fix it.
    Ref: https://github.com/curl/curl/runs/13987772013
    Ref: https://dev.azure.com/daniel0244/curl/_build/results?buildId=15827&vie
  w=logs&jobId=2c9f582d-e278-56b6-4354-f38a4d851906&j=2c9f582d-e278-56b6-4354-f
  38a4d851906&t=90509b00-34fa-5a81-35d7-5ed9569d331c
  - tweak unity builds to compile `lib/memdebug.c` separately in memory
    trace builds to avoid PP confusion.
  - force-disable unity for test programs.
  - do not compile and link libcurl sources to libtests _twice_ when libcurl
    is built in static mode.

  KNOWN ISSUES:
  - running tests with unity builds may fail in cases.
  - some build configurations/env may not compile in unity mode. E.g.:
    https://ci.appveyor.com/project/curlorg/curl/builds/47230972/job/51wfesgnfu
  auwl8q#L250

  Ref: https://github.com/libssh2/libssh2/issues/1034
  Ref: https://cmake.org/cmake/help/latest/prop_tgt/UNITY_BUILD.html
  Ref: https://en.wikipedia.org/wiki/Unity_build

  Closes #11095

Daniel Stenberg (7 Jun 2023)

- examples/websocket.c: websocket example using CONNECT_ONLY

  Closes #11262

- websocket-cb: example doing WebSocket download using callback

  Very basic

  Closes #11260

- test/.gitignore: ignore log*

Dan Fandrich (5 Jun 2023)

- runtests: document the -j parallel testing option

  Reported-by: Daniel Stenberg
  Ref: #10818
  Closes #11255

- runtests: create multiple test runners when requested

  Parallel testing is enabled by using a nonzero value for the -j option
  to runtests.pl. Performant values seem to be about 7*num CPU cores, or
  1.3*num CPU cores if Valgrind is in use.

  Flaky tests due to improper log locking (bug #11231) are exacerbated
  while parallel testing, so it is not enabled by default yet.

  Fixes #10818
  Closes #11246

- runtests: handle repeating tests in multiprocess mode

  Such as what happens with the --repeat option.  Some functions are
  changed to pass the runner ID instead of relying on the non-unique test
  number.

  Ref: #10818

- runtests: buffer logmsg while running singletest()

  This allows all messages relating to a single test case to be displayed
  together at the end of the test.

  Ref: #10818

- runtests: call initserverconfig() in the runner

  This must be done so variables pick up the runner's unique $LOGDIR.

  Ref: #10818

- runtests: use a per-runner random seed

  Each runner needs a unique random seed to reduce the chance of port
  number collisions. The new scheme uses a consistent per-runner source of
  randomness which results in deterministic behaviour, as it did before.

  Ref: #10818

- runtests: complete main test loop refactor for multiple runners

  The main test loop is now able to handle multiple runners, or no
  additional runner processes at all. At most one process is still
  created, however.

  Ref: #10818

- runtests: prepare main test loop for multiple runners

  Some variables are expanded to arrays and hashes so that multiple
  runners can be used for running tests.

  Ref: #10818

Stefan Eissing (5 Jun 2023)

- bufq: make write/pass methods more robust

  - related to #11242 where curl enters busy loop when
    sending http2 data to the server

  Closes #11247

Boris Verkhovskiy (5 Jun 2023)

- tool_getparam: fix comment

  Closes #11253

Raito Bezarius (5 Jun 2023)

- haproxy: add --haproxy-clientip flag to spoof client IPs

  CURLOPT_HAPROXY_CLIENT_IP in the library

  Closes #10779

Daniel Stenberg (5 Jun 2023)

- curl: add --ca-native and --proxy-ca-native

  These are two boolean options to ask curl to use the native OS's CA
  store when verifying TLS servers. For peers and for proxies
  respectively.

  They currently only have an effect for curl on Windows when built to use
  OpenSSL for TLS.

  Closes #11049

Viktor Szakats (5 Jun 2023)

- build: drop unused/redundant `HAVE_WINLDAP_H`

  Sources did not use it. Autotools used it when checking for the
  `winldap` library, which is redundant.

  With CMake, detection was broken:
  ```
  Run Build Command(s):/usr/local/Cellar/cmake/3.26.3/bin/cmake -E env VERBOSE=
  1 /usr/bin/make -f Makefile cmTC_2d8fe/fast && /Library/Developer/CommandLine
  Tools/usr/bin/make  -f CMakeFiles/cmTC_2d8fe.dir/build.make CMakeFiles/cmTC_2
  d8fe.dir/build
  Building C object CMakeFiles/cmTC_2d8fe.dir/HAVE_WINLDAP_H.c.obj
  /usr/local/opt/llvm/bin/clang --target=x86_64-w64-mingw32 --sysroot=/usr/loca
  l/opt/mingw-w64/toolchain-x86_64 -D_WINSOCKAPI_="" -I/my/quictls/x64-ucrt/usr
  /include -I/my/zlib/x64-ucrt/usr/include -I/my/brotli/x64-ucrt/usr/include -W
  no-unused-command-line-argument   -D_UCRT -DCURL_HIDDEN_SYMBOLS -DHAVE_SSL_SE
  T0_WBIO -DHAS_ALPN -DNGHTTP2_STATICLIB -DNGHTTP3_STATICLIB -DNGTCP2_STATICLIB
   -DUSE_MANUAL=1  -fuse-ld=lld -Wl,-s -static-libgcc  -lucrt  -Wextra -Wall -p
  edantic -Wbad-function-cast -Wconversion -Winline -Wmissing-declarations -Wmi
  ssing-prototypes -Wnested-externs -Wno-long-long -Wno-multichar -Wpointer-ari
  th -Wshadow -Wsign-compare -Wundef -Wunused -Wwrite-strings -Wcast-align -Wde
  claration-after-statement -Wempty-body -Wendif-labels -Wfloat-equal -Wignored
  -qualifiers -Wno-format-nonliteral -Wno-sign-conversion -Wno-system-headers -
  Wstrict-prototypes -Wtype-limits -Wvla -Wshift-sign-overflow -Wshorten-64-to-
  32 -Wdouble-promotion -Wenum-conversion -Wunused-const-variable -Wcomma -Wmis
  sing-variable-declarations -Wassign-enum -Wextra-semi-stmt  -MD -MT CMakeFile
  s/cmTC_2d8fe.dir/HAVE_WINLDAP_H.c.obj -MF CMakeFiles/cmTC_2d8fe.dir/HAVE_WINL
  DAP_H.c.obj.d -o CMakeFiles/cmTC_2d8fe.dir/HAVE_WINLDAP_H.c.obj -c /my/curl/b
  ld-cmake-llvm-x64-shared/CMakeFiles/CMakeScratch/TryCompile-3JP6dR/HAVE_WINLD
  AP_H.c
  In file included from /my/curl/bld-cmake-llvm-x64-shared/CMakeFiles/CMakeScra
  tch/TryCompile-3JP6dR/HAVE_WINLDAP_H.c:2:
  In file included from /usr/local/opt/mingw-w64/toolchain-x86_64/x86_64-w64-mi
  ngw32/include/winldap.h:17:
  In file included from /usr/local/opt/mingw-w64/toolchain-x86_64/x86_64-w64-mi
  ngw32/include/schnlsp.h:9:
  In file included from /usr/local/opt/mingw-w64/toolchain-x86_64/x86_64-w64-mi
  ngw32/include/schannel.h:10:
  /usr/local/opt/mingw-w64/toolchain-x86_64/x86_64-w64-mingw32/include/wincrypt
  .h:5041:254: error: unknown type name 'PSYSTEMTIME'
    WINIMPM PCCERT_CONTEXT WINAPI CertCreateSelfSignCertificate (HCRYPTPROV_OR_
  NCRYPT_KEY_HANDLE hCryptProvOrNCryptKey, PCERT_NAME_BLOB pSubjectIssuerBlob, 
  DWORD dwFlags, PCRYPT_KEY_PROV_INFO pKeyProvInfo, PCRYPT_ALGORITHM_IDENTIFIER
   pSignatureAlgorithm, PSYSTEMTIME pStartTime, PSYSTEMTIME pEndTime, PCERT_EXT
  ENSIONS pExtensions);
                                                                               
                                                                               
                                                                               
                        ^
  /usr/local/opt/mingw-w64/toolchain-x86_64/x86_64-w64-mingw32/include/wincrypt
  .h:5041:278: error: unknown type name 'PSYSTEMTIME'
    WINIMPM PCCERT_CONTEXT WINAPI CertCreateSelfSignCertificate (HCRYPTPROV_OR_
  NCRYPT_KEY_HANDLE hCryptProvOrNCryptKey, PCERT_NAME_BLOB pSubjectIssuerBlob, 
  DWORD dwFlags, PCRYPT_KEY_PROV_INFO pKeyProvInfo, PCRYPT_ALGORITHM_IDENTIFIER
   pSignatureAlgorithm, PSYSTEMTIME pStartTime, PSYSTEMTIME pEndTime, PCERT_EXT
  ENSIONS pExtensions);
                                                                               
                                                                               
                                                                               
                                                ^
  2 errors generated.
  make[1]: *** [CMakeFiles/cmTC_2d8fe.dir/HAVE_WINLDAP_H.c.obj] Error 1
  make: *** [cmTC_2d8fe/fast] Error 2
  exitCode: 2
  ```

  Cherry-picked from #11095 88e4a21ff70ccef391cf99c8165281ff81374503
  Reviewed-by: Daniel Stenberg
  Closes #11245

Daniel Stenberg (5 Jun 2023)

- urlapi: scheme starts with alpha

  Add multiple tests to lib1560 to verify

  Fixes #11249
  Reported-by: ad0p on github
  Closes #11250

- RELEASE-NOTES: synced

- CURLOPT_MAIL_RCPT_ALLOWFAILS: replace CURLOPT_MAIL_RCPT_ALLLOWFAILS

  Deprecate the name using three Ls and prefer the name with two.

  Replaces #10047
  Closes #11218

- tests/servers: generate temp names in /tmp for unix domain sockets

  ... instead of putting them in the regular pid directories because
  systems generally have strict length requirements for the path name to
  be shorter than 107 bytes and we easily hit that boundary otherwise.

  The new concept generates two random names: one for the socks daemon and
  one for http.

  Reported-by: Andy Fiddaman
  Fixes #11152
  Closes #11166

Stefan Eissing (2 Jun 2023)

- http2: better support for --limit-rate

  - leave transfer loop when --limit-rate is in effect and has
    been received
  - adjust stream window size to --limit-rate plus some slack
    to make the server observe the pacing we want
  - add test case to confirm behaviour

  Closes #11115

- curl_log: evaluate log statement only when transfer is verbose

  Closes #11238

Daniel Stenberg (2 Jun 2023)

- libssh2: provide error message when setting host key type fails

  Ref: https://curl.se/mail/archive-2023-06/0001.html

  Closes #11240

Igor Todorovski (2 Jun 2023)

- system.h: remove __IBMC__/__IBMCPP__ guards and apply to all z/OS compiles

  Closes #11241

Daniel Stenberg (2 Jun 2023)

- docs/SECURITY-PROCESS.md: link to example of previous critical flaw

Mark Seuffert (2 Jun 2023)

- README.md: updated link to opencollective

  Closes #11232

Daniel Stenberg (1 Jun 2023)

- libssh2: use custom memory functions

  Because of how libssh2_userauth_keyboard_interactive_ex() works: the
  libcurl callback allocates memory that is later free()d by libssh2, we
  must set the custom memory functions.

  Reverts 8b5f100db388ee60118c08aa28

  Ref: https://github.com/libssh2/libssh2/issues/1078
  Closes #11235

- test447: test PUTting a file that grows

  ... and have curl trim the end when it reaches the expected total amount
  of bytes instead of over-sending.

  Reported-by: JustAnotherArchivist on github
  Closes #11223

- curl: count uploaded data to stop at the originally given size

  Closes #11223
  Fixes #11222
  Reported-by: JustAnotherArchivist on github

- tool: remove exclamation marks from error/warning messages

- tool: use errorf() for error output

  Convert a number of fprintf() calls.

- tool: remove newlines from all helpf/notef/warnf/errorf calls

  Make voutf() always add one.

  Closes #11226

- tests/servers.pm: pick unused port number with a server socket

  This change replaces the previous method of picking a port number at
  random to try to start servers on, then retrying up to ten times with
  new random numbers each time, with a function that creates a server
  socket on port zero, thereby getting a suitable random port set by the
  kernel. That server socket is then closed and that port number is used
  to setup the actual test server on.

  There is a risk that *another* server can be started on the machine in
  the time gap, but the server verification feature will detect that.

  Closes #11220

- RELEASE-NOTES: synced

  bump to 8.2.0

Alejandro R. Sedeño (31 May 2023)

- configure: fix run-compiler for old /bin/sh

  If you try to assign and export on the same line on some older /bin/sh
  implementations, it complains:

  ```
  $ export "NAME=value"
  NAME=value: is not an identifier
  ```

  This commit rewrites run-compiler's assignments and exports to work with
  old /bin/sh, splitting assignment and export into two separate
  statements, and only quote the value. So now we have:

  ```
  NAME="value"
  export NAME
  ```

  While we're here, make the same change to the two supporting
  assign+export lines preceeding the script to be consistent with how
  exports work throughout the rest of configure.ac.

  Closes #11228

Philip Heiduck (31 May 2023)

- circleci: install impacket & wolfssl 5.6.0

  Closes #11221

Daniel Stenberg (31 May 2023)

- tool_urlglob: use curl_off_t instead of longs

  To handle more globs better (especially on Windows)

  Closes #11224

Dan Fandrich (30 May 2023)

- scripts: Fix GHA matrix job detection in cijobs.pl

  The parsing is pretty brittle and it broke detecting some jobs at some
  point. Also, detect if Windows is used in GHA.

- runtests: abort test run after failure without -a

  This was broken in a recent refactor and test runs would not stop.

  Follow-up to d4a1b5b6

  Reported-by: Daniel Stenberg
  Fixes #11225
  Closes #11227

Version 8.1.2 (30 May 2023)

Daniel Stenberg (30 May 2023)

- RELEASE-NOTES: synced

  8.1.2 release

- THANKS: contributors from 8.1.2

- lib1560: verify more scheme guessing

  - on 2nd level domains
  - on names without dots

  As mentioned in #11161, "imap.com" will be guessed IMAP

  Closes #11219

- page-header: minor wording polish in the URL segment

  Closes #11217

- page-header: mention curl version and how to figure out current release

  Closes #11216

- RELEASE-NOTES: synced

- configure: without pkg-config and no custom path, use -lnghttp2

  Reported-by: correctmost on github
  Fixes #11186
  Closes #11210

Stefan Eissing (28 May 2023)

- curl: cache the --trace-time value for a second

  - caches HH:MM:SS computed and reuses it for logging during
    the same second.
  - common function for plain log line start formatting

  Closes #11211

Kev Jackson (28 May 2023)

- libcurl.m4: remove trailing 'dnl' that causes this to break autoconf

  Closes #11212

Stefan Eissing (26 May 2023)

- http3: send EOF indicator early as possible

  - ngtcp2 and quiche implementations relied on the DONE_SEND event
    to forward the EOF for uploads to the libraries. This often
    result in a last 0 length EOF data. Tracking the amount of
    data left to upload allows EOF indication earlier.
  - refs #11205 where CloudFlare DoH servers did not like to
    receive the initial upload DATA without EOF and returned
    a 400 Bad Request

  Reported-by: Sergey Fionov
  Fixes #11205
  Closes #11207

Daniel Stenberg (26 May 2023)

- scripts/contri*sh: no longer grep -v ' '

  Originally these scripts filtered out names that have no space so that
  they better avoid nick names not intended for credits. Such names are
  not too commonly used, plus we now give credit even to those.

  Additionally: non-latin names, like Asian, don't have spaces at all so
  they were also filtered out and had to be manually added which made it
  an error-prone operation where Asian names eventually easily fell off by
  mistake.

  Closes #11206

- cf-socket: restore Curl_sock_assign_addr()

  Regression since it was not private. Also used by msh3.c

  Follow-up to 8e85764b7bd7f05f5
  Reported-by: Gisle Vanem
  Fixes #11202
  Closes #11204

- RELEASE-NOTES: synced

  Taken down to 8.1.2 now for pending patch release

- libssh: when keyboard-interactive auth fails, try password

  The state machine had a mistake in that it would not carry on to that
  next step.

  This also adds a verbose output what methods that are available from the
  server and renames the macros that change to the next auth methods to
  try.

  Reported-by: 左潇峰
  Fixes #11196
  Closes #11197

Emanuele Torre (25 May 2023)

- configure: fix build with arbitrary CC and LD_LIBRARY_PATH

  Since ./configure and processes that inherit its environment variables
  are the only callers of the run-compiler script, we can just save the
  current value of the LD_LIBRARY_PATH and CC variables to another pair of
  environment variables, and make run-compiler a static script that
  simply restores CC and LD_LIBRARY_PATH to the saved value, and before
  running the compiler.

  This avoids having to inject the values of the variables in the script,
  possibly causing problems if they contains spaces, quotes, and other
  special characters.

  Also add exports in the script just in case LD_LIBRARY_PATH and CC are
  not already in the environment.

  follow-up from 471dab2

  Closes #11182

Daniel Stenberg (25 May 2023)

- urlapi: remove superfluous host name check

  ... as it is checked later more proper.

  Closes #11195

Stefan Eissing (25 May 2023)

- http2: fix EOF handling on uploads with auth negotiation

  - doing a POST with `--digest` does an override on the initial request
    with `Content-Length: 0`, but the http2 filter was unaware of that
    and expected the originally request body. It did therefore not
    send a final DATA frame with EOF flag to the server.
  - The fix overrides any initial notion of post size when the `done_send`
    event is triggered by the transfer loop, leading to the EOF that
    is necessary.
  - refs #11194. The fault did not happen in testing, as Apache httpd
    never tries to read the request body of the initial request,
    sends the 401 reply and closes the stream. The server used in the
    reported issue however tried to read the EOF and timed out on the
    request.

  Reported-by: Aleksander Mazur
  Fixes #11194
  Cloes #11200

Daniel Stenberg (23 May 2023)

- RELEASE-NOTES: synced

  bump to 8.2.0

- lib: remove unused functions, make single-use static

  Closes #11174

- scripts/singleuse.pl: add more API calls

Christian Hesse (23 May 2023)

- configure: quote the assignments for run-compiler

  Building for multilib failed, as the compiler command contains an
  extra argument. That needs quoting.

  Regression from b78ca50cb3dda361f9c1

  Fixes #11179
  Closes #11180

Daniel Stenberg (23 May 2023)

- misc: fix spelling mistakes

  Reported-by: musvaage on github
  Fixes #11171
  Closes #11172

Version 8.1.1 (23 May 2023)

Daniel Stenberg (23 May 2023)

- RELEASE-NOTES: synced

  curl 8.1.1

- THANKS: contributors from the 8.1.1 release

Dan Fandrich (22 May 2023)

- docs: fix fuzzing documentation link

  Follow-up to 4c712a1b

- CI: add an Alpine build with MUSL

  MUSL is another libc implementation which has its own unique issues
  worth testing.

  Ref: #11140
  Closes #11178

- runtests: add a missing \n at the end of a log message

correctmost on github (22 May 2023)

- SECURITY-PROCESS.md: link security advisory doc and fix typo

  Closes #11177

Daniel Stenberg (22 May 2023)

- TODO: build curl with Windows Unicode support

  Closes #7229

- KNOWN_BUGS: hyper memory-leaks

  Closes #10803

Stefan Eissing (22 May 2023)

- http/2: unstick uploads

  - refs #11157 and #11175 where uploads get stuck or lead to RST streams
  - fixes our h2 send behaviour to continue sending in the nghttp2 session
    as long as it wants to. This will empty our send buffer as long as
    the remote stream/connection window allows.
  - in case the window is exhausted, the data remaining in the send buffer
    will wait for a WINDOW_UPDATE from the server. Which is a socket event
    that engages our transfer loop again
  - the problem in the issue was that we did not exhaust the window, but
    left data in the sendbuffer and no further socket events did happen.
    The server was just waiting for us to send more.
  - relatedly, there was an issue fixed that closing a stream with KEEP_HOLD
    set kept the transfer from shutting down - as it should have - leading
    to a timeout.

  Closes #11176

Daniel Stenberg (21 May 2023)

- workflows/macos: add a job using gcc + debug + secure transport

Jay Satiro (21 May 2023)

- lib: fix conversion warnings with gcc on macOS

Daniel Stenberg (21 May 2023)

- sectransp.c: make the code c89 compatible

  Follow-up to dd2bb485521c2ec713001b3a

  Reported-by: FeignClaims on github
  Fixes #11155
  Closes #11159

Emanuele Torre (21 May 2023)

- Revert "urlapi: respect CURLU_ALLOW_SPACE and CURLU_NO_AUTHORITY for redirect
  s"

  This reverts commit df6c2f7b544f1f35f2a3e0be11f345affeb6fe9c.
  (It only keep the test case that checks redirection to an absolute URL
  without hostname and CURLU_NO_AUTHORITY).

  I originally wanted to make CURLU_ALLOW_SPACE accept spaces in the
  hostname only because I thought
  curl_url_set(CURLUPART_URL, CURLU_ALLOW_SPACE) was already accepting
  them, and they were only not being accepted in the hostname when
  curl_url_set(CURLUPART_URL) was used for a redirection.

  That is not actually the case, urlapi never accepted hostnames with
  spaces, and a hostname with a space in it never makes sense.
  I probably misread the output of my original test when I they were
  normally accepted when using CURLU_ALLOW_SPACE, and not redirecting.

  Some other URL parsers seems to allow space in the host part of the URL,
  e.g. both python3's urllib.parse module, and Chromium's javascript URL
  object allow spaces (chromium percent escapes the spaces with %20),
  (they also both ignore TABs, and other whitespace characters), but those
  URLs with spaces in the hostname are useless, neither python3's requests
  module nor Chromium's window.location can actually use them.

  There is no reason to add support for URLs with spaces in the host,
  since it was not a inconsistency bug; let's revert that patch before it
  makes it into release. Sorry about that.

  I also reverted the extra check for CURLU_NO_AUTHORITY since that does
  not seem to be necessary, CURLU_NO_AUTHORITY already worked for
  redirects.

  Closes #11169

Dan Fandrich (20 May 2023)

- runtests: use the correct fd after select

  The code was using the wrong fd when determining which runner was ready
  with a response.

  Ref: #10818
  Closes #11160

- test425: fix the log directory for the upload

  This must be %LOGDIR to let it work with parallel tests.

  Ref: #10969

- runtests: handle interrupted reads from IPC pipes

  These can be interrupted by signals, especially SIGINT to shut down, and
  must be restarted so the IPC call arrives correctly. If the read just
  returns an error instead, the IPC calling state will go out of sync and
  a proper shutdown won't happen.

  Ref: #10818

Stefan Eissing (20 May 2023)

- http2: upload improvements

  Make send buffer smaller to have progress and "upload done" reporting
  closer to reality. Fix handling of send "drain" condition to no longer
  trigger once the transfer loop reports it is done sending. Also do not
  trigger the send "drain" on RST streams.

  Background:
  - a upload stall was reported in #11157 that timed out
  - test_07_33a reproduces a problem with such a stall if the
    server 404s the request and RSTs the stream.
  - test_07_33b verifies a successful PUT, using the parameters
    from #11157 and checks success

  Ref: #11157
  Closes #11165

- http2: increase stream window size to 10 MB

  Reported-by: pandada8 on github

  Fixes #11162
  Closes #11167

Daniel Stenberg (20 May 2023)

- lib: rename struct 'http_req' to 'httpreq'

  Because FreeBSD 14 kidnapped the name.
  Ref: https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=271526

  Fixes #11163
  Closes #11164

Viktor Szakats (20 May 2023)

- cmake: avoid `list(PREPEND)` for compatibility

  `list(PREPEND)` requires CMake v3.15, our minimum is v3.7.

  Ref: https://cmake.org/cmake/help/latest/command/list.html#prepend

  Regression from 1e3319a167d2f32d295603167486e9e88af9bb4e

  Reported-by: Keitagit-kun on Github
  Fixes #11141
  Closes #11144

Daniel Stenberg (19 May 2023)

- RELEASE-NOTES: synced

Stefan Eissing (19 May 2023)

- ngtcp2: proper handling of uint64_t when adjusting send buffer

  Fixes #11149
  Closes #11153

- ngtcp2: fix compiler warning about possible null-deref

  - compiler analyzer did not include the call context for this
    static function where the condition had already been checked.
  - eleminating the problem by making stream a call parameter

  Fixes #11147
  Closes #11151

Emanuele Torre (19 May 2023)

- docs: document that curl_url_cleanup(NULL) is a safe no-op

  This has always been the case, but it was not documented.

  The paragraph was copied verbatim from curl_easy_cleanup.3

  Closes #11150

Antoine Pitrou (19 May 2023)

- select: avoid returning an error on EINTR from select() or poll()

  This was already done for the poll() and select() calls
  made directly from Curl_poll(), but was missed in
  Curl_wait_ms(), which is called when there are no fds
  to wait on.

  Fixes #11135
  Closes #11143

Daniel Stenberg (19 May 2023)

- vquic.c: make recvfrom_packets static, avoid compiler warning

  warning: no previous prototype for 'recvfrom_packets'

  Reported-by: Keitagit-kun on github
  Fixes #11146
  Closes #11148

- urlapi: allow numerical parts in the host name

  It can only be an IPv4 address if all parts are all digits and no more than
  four parts, otherwise it is a host name. Even slightly wrong IPv4 will now be
  passed through as a host name.

  Regression from 17a15d88467 shipped in 8.1.0

  Extended test 1560 accordingly.

  Reported-by: Pavel Kalyugin
  Fixes #11129
  Closes #11131

Emilio Cobos Álvarez (19 May 2023)

- http2: double http request parser max line length

  This works around #11138, by doubling the limit, and should be a
  relatively safe fix.

  Ideally the buffer would grow as needed and there would be no need for a
  limit? But that might be follow-up material.

  Fixes #11138
  Closes #11139

Emanuele Torre (18 May 2023)

- configure: fix --help alignment

  AC_ARG_ENABLE seems to only trim off whitespace from the start and end
  of its help-string argument, while prepending two spaces of indentation
  to all lines.

  This means that the two spaces of indentation between the --enable-rtsp
  and the --disable-rtsp line were not removed causing ./configure --help
  to print:

    Optional Features:
      [...]
      --enable-rtsp           Enable RTSP support
        --disable-rtsp          Disable RTSP support

  I removed the indentation to fix the issue, now it prints:

    Optional Features:
      [...]
      --enable-rtsp           Enable RTSP support
      --disable-rtsp          Disable RTSP support

  The --enable-hsts and --disable-hsts lines had the same problems, and
  have been fixed too.

  Closes #11142

Deal(一线灵) (18 May 2023)

- cmake: repair cross compiling

  It cannot *run* code for testing purposes when cross-compiling.

  Closes #11130

Daniel Stenberg (18 May 2023)

- configure: generate a script to run the compiler

  in the CURL_RUN_IFELSE macro, with LD_LIBRARY_PATH set to the value of
  the configure invoke, and not the value that might be used later,
  intended for the execution of the output the compiler ouputs.

  For example when the compiler uses the same library (like libz) that
  configure checks for.

  Reported-by: Jonas Bülow
  Fixes #11114
  Closes #11120

Stefan Eissing (18 May 2023)

- cf-socket: completely remove the disabled USE_RECV_BEFORE_SEND_WORKAROUND

  Closes #11118

Emanuele Torre (18 May 2023)

- urlapi: respect CURLU_ALLOW_SPACE and CURLU_NO_AUTHORITY for redirects

  curl_url_set(uh, CURLUPART_URL, redirurl, flags)  was not respecing
  CURLU_ALLOW_SPACE and CURLU_NO_AUTHORITY in the host part of redirurl
  when redirecting to an absolute URL.

  Closes #11136

Colin Cross (18 May 2023)

- hostip: move easy_lock.h include above curl_memory.h

  Similar to #9561, move easy_lock.h above curl_memory.h to fix building
  against musl libc.

  Closes #11140

Hind Montassif (18 May 2023)

- curl_easy_getinfo: clarify on return data types

  Closes #11126

Emanuele Torre (18 May 2023)

- checksrc: disallow spaces before labels

  Out of 415 labels throughout the code base, 86 of those labels were
  not at the start of the line. Which means labels always at the start of
  the line is the favoured style overall with 329 instances.

  Out of the 86 labels not at the start of the line:
  * 75 were indented with the same indentation level of the following line
  * 8 were indented with exactly one space
  * 2 were indented with one fewer indentation level then the following
    line
  * 1 was indented with the indentation level of the following line minus
    three space (probably unintentional)

  Co-Authored-By: Viktor Szakats

  Closes #11134

Daniel Stenberg (18 May 2023)

- cookie: update the comment on cookie length and size limits

  To refer to the proper cookie RFC and the upcoming RFC refresh.

  Closes #11127

- url: provide better error message when URLs fail to parse

  By providing the URL API error message into the error message.

  Ref: #11129
  Closes #11137

- RELEASE-NOTES: synced

  bumped to 8.1.1

Jon Rumsey (18 May 2023)

- os400: update chkstrings.c

  Compensate changes for recent changes to urldata.h to reclassify
  STRING_AWS_SIGV4.

  Fixes #11132
  Closes #11133

Version 8.1.0 (17 May 2023)

Daniel Stenberg (17 May 2023)

- RELEASE-NOTES: synced

- THANKS: contributors from the 8.1.0 release

- hostip: include easy_lock.h before using GLOBAL_INIT_IS_THREADSAFE

  Since that header file is the only place that define can be defined.

  Reported-by: Marc Deslauriers

  Follow-up to 13718030ad4b3209

  Closes #11121

Thomas Taylor (16 May 2023)

- aws-sigv4.d: fix region identifier in example

  Closes #11117

Philip Heiduck (15 May 2023)

- mlc_config.json: remove this linkcheck CI job config file

  Closes #11113

Daniel Silverstone (15 May 2023)

- ssh: Add support for libssh2 read timeout

  Hook the new (1.11.0 or newer) libssh2 support for setting a read timeout
  into the SERVER_RESPONSE_TIMEOUT option.  With this done, clients can use
  the standard curl response timeout setting to also control the time that
  libssh2 will wait for packets from a slow server.  This is necessary to
  enable use of very slow SFTP servers.

  Signed-off-by: Daniel Silverstone <daniel.silverstone@codethink.co.uk>

  Closes #10965

Osama Albahrani (14 May 2023)

- GIT-INFO: add --with-openssl

  Closes #11110

Daniel Stenberg (13 May 2023)

- RELEASE-NOTES: synced

Marcel Raad (13 May 2023)

- md(4|5): don't use deprecated iOS functions

  They are marked as deprecated in iOS 13.0, which might result in
  warnings-as-errors.

  Also, use `*_MIN_REQUIRED` instead of `*_MIN_ALLOWED`, which seems to
  be what's currently used.

  Bug: https://github.com/curl/curl/issues/11098
  Closes https://github.com/curl/curl/pull/11102

- md4: only build when used

  Its only usage in curl_ntlm_core.c is guarded by `USE_CURL_NTLM_CORE`,
  so let's use this here too.

  Ref: https://github.com/curl/curl/issues/11098
  Closes https://github.com/curl/curl/pull/11102

Vítor Galvão (12 May 2023)

- write-out.d: Use response_code in example

  Closes #11107

Shohei Maeda (12 May 2023)

- url: fix null dispname for --connect-to option

  Closes #11106

Daniel Stenberg (12 May 2023)

- test2306: verify getting a second response with folded headers

  Reproduces the isue #11101 and verifies the fix.

  Verifies a17b2a503f

- headers: clear (possibly) lingering pointer in init

  The "prevhead" pointer is used for the headers storage but was not
  cleared correctly in init, which made it possible to act up when a
  handle is reused.

  Reported-by: Steve Herrell
  Fixes #11101
  Closes #11103

- RELEASE-NOTES: synced

- ngtcp2: use 0.15.0

  - nghttp3 0.11.0
  - nghttp2 1.53.0

  Adapt to new API calls

  Closes #11031

Jay Satiro (10 May 2023)

- openssl: fix indent

Daniel Stenberg (10 May 2023)

- CURLOPT_DNS_CACHE_TIMEOUT.3: fix spelling

  Follow-up to 9ed7d56e044f5aa1b29

  Closes #11096

- hostip: use time_t for storing oldest DNS entry

  Theoretically, the oldest time could overflow an int. In practice that
  won't happen, but let's do this to please analyzers.

  Follow-up to 9ed7d56e044f5aa1b2928ccde6245d0

  Pointed out by Coverity.
  Closes #11094

- http: free the url before storing a new copy

  To avoid a memory-leak.

  Reported-by: Hiroki Kurosawa

  Closes #11093

- compressed.d: clarify the words on "not notifying headers"

  Reported-by: Dylan Anthony
  Fixes #11091
  Closes #11092

- libssh2: free fingerprint better

  Reported-by: Wei Chong Tan
  Closes #11088

- CURLOPT_IPRESOLVE.3: clarify that this for host names, not IP addresses

  Reported-by: Harry Sintonen
  Closes #11087

- hostip: enforce a maximum DNS cache size independent of timeout value

  To reduce the damage an application can cause if using -1 or other
  ridiculous timeout values and letting the cache live long times.

  The maximum number of entries in the DNS cache is now totally
  arbitrarily and hard-coded set to 29999.

  Closes #11084

- hostip: store dns timeout as 'int'

  ... because it set and held as an 'int' elsewhere and can never be
  larger.

- RELEASE-NOTES: synced

- tool_operate: refuse (--data or --form) and --continue-at combo

  libcurl assumes that a --continue-at resumption is done to continue an
  upload using the read callback and neither --data nor --form use
  that and thus won't do what the user wants. Whatever the user wants
  with this strange combination.

  Add test 426 to verify.

  Reported-by: Smackd0wn on github
  Fixes #11081
  Closes #11083

- transfer: refuse POSTFIELDS + RESUME_FROM combo

  The code assumes that such a resume is wanting to continue an upload
  using the read callback, and since POSTFIELDS is done without callback
  libcurl will just misbehave.

  This combo will make the transfer fail with CURLE_BAD_FUNCTION_ARGUMENT
  with an explanation in the error message.

  Reported-by: Smackd0wn on github
  Fixes #11081
  Closes #11083

- ipv4.d/ipv6.d: they are "mutex", not "boolean"

  ... which for example means they do not have --no-* versions.

  Reported-by: Harry Sintonen
  Fixes #11085
  Closes #11086

- docs/SECURITY-ADVISORY.md: how to write a curl security advisory

  Closes #11080

nobedee on github (5 May 2023)

- MANUAL.md: add dict example for looking up a single definition

  Closes #11077

Dan Fandrich (5 May 2023)

- runtests: fix -c option when run with valgrind

  The curl binary argument wasn't being quoted properly. This seems to
  have broken at some point after quoting was added in commit 606b29fe.

  Reported-by: Daniel Stenberg
  Ref: #11073
  Fixes #11074
  Closes #11076

- runtests: support creating more than one runner process

  The controller currently only creates and uses one, but more are now
  possible.

  Ref: #10818

- runtests: spawn a new process for the test runner

  When the -j option is given, a new process is spawned in which the test
  programs are run and from which test servers are started. Only one
  process can be started at once, but this is sufficient to test that the
  infrastructure can isolate those functions in a new task. There should
  be no visible difference between the two modes at the moment.

  Ref: #10818
  Closes #11064

- runtests: turn singletest() into a state machine

  This allows it to run in a non-blocking manner.

  Ref: #10818

- runtests: change runner interface to be asynchronous

  Program arguments are marshalled and then written to the end of a pipe
  which is later read from and the arguments unmarshalled before the
  desired function is called normally.  The function return values are
  then marshalled and written into another pipe when is later read from
  and unmarshalled before being returned to the caller.

  The implementation is currently blocking but can be made non-blocking
  without any changes to the API.  This allows calling multiple runners
  without blocking in the future.

  Ref: #10818

- runtests: call citest_finishtest in singletest

  This is where citest_starttest is called.

  Ref: #10818

- runtests: add a runner initialization function

  This sets up the runner environment to start running tests.

  Ref: #10818

- runtests: remove directory from server filename variables

  There will soon be multiple log directories so the paths will no longer
  be static in runtests.pl. Also, get rid of $SERVER2IN which was not
  used.

  Ref: #10818

- runtests: reduce package exports after refactoring

  Some recent refactoring made these export no longer necessary. Also,
  stop displaying the Unix socket paths at startup since there will soon
  be many of them and they're not that interesting.

  Ref: #10818

- runtests: use a function to obtain $LOGDIR for a test

  This will no longer be static soon.

  Ref: #10818

Jay Satiro (5 May 2023)

- tool_cb_hdr: Fix 'Location:' formatting for early VTE terminals

  - Disable hyperlink formatting for the 'Location:' header value in VTE
    0.48.1 and earlier, since it is buggy in some of those versions.

  Prior to this change those terminals may show the location header value
  as gibberish or show it twice.

  Ref: https://gist.github.com/egmontkob/eb114294efbcd5adb1944c9f3cb5feda#backw
  ard-compatibility

  Fixes https://github.com/curl/curl/issues/10428
  Closes https://github.com/curl/curl/pull/11071

François Michel (3 May 2023)

- quiche: disable pacing while pacing is not actually performed

  Closes #11068

Daniel Stenberg (2 May 2023)

- easy_cleanup: require a "good" handle to act

  By insisting that the passed in handle is "good" (the magic number is
  intact), this can limit the potential damage if a bad pointer is passed
  in. Like when this function is called twice on the same handle pointer.

  Ref: #10964
  Closes #11061

Andreas Falkenhahn (1 May 2023)

- amiga: Fix CA certificate paths for AmiSSL and MorphOS

  AmiSSL stores certificates in `AmiSSL:Certs` and MorphOS stores them in
  `MOSSYS:Data/SSL/curl-ca-bundle.crt`.

  Closes https://github.com/curl/curl/pull/11059

Daniel Stenberg (30 Apr 2023)

- http2: (void)-mark when we explicitly ignore the return code

  When h2_progress_egress() is called. Pointed out by Coverity.

  Closes #11057

- checksrc: find bad indentation in conditions without open brace

  If the previous line starts with if/while/for AND ends with a closed
  parenthesis and there's an equal number of open and closed parentheses
  on that line, verify that this line is indented $indent more steps, if
  not a cpp line.

  Also adjust the fall-out from this fix.

  Closes #11054

Diogo Teles Sant'Anna (28 Apr 2023)

- CI: Set minimal permissions on workflow ngtcp2-quictls.yml

  Signed-off-by: Diogo Teles Sant'Anna <diogoteles@google.com>

  Closes #11055

Dan Fandrich (28 Apr 2023)

- CI: use another glob syntax for matching files on Appveyor

  The previous globbing syntax was not matching files recursively in
  directories, so try appending a /* to more closely match the examples at
  https://www.appveyor.com/docs/how-to/filtering-commits/

Daniel Stenberg (28 Apr 2023)

- multi: add multi-ignore logic to multi_socket_action

  The multi-ignore logic that was previously applied to
  curl_multi_perform() (#10750) is here applied to the loop within
  curl_multi_socket_action() to make it use the same optimization: most
  handles have the same signal-ignore option state so this drastically
  reduces the number of ignore/unignore calls per libcurl function invoke.

  Follow-up to bc90308328afb8

  Closes #11045

Stefan Eissing (28 Apr 2023)

- http2: do flow window accounting for cancelled streams

  - nghttp2 does not free connection level window flow for
    aborted streams
  - when closing transfers, make sure that any buffered
    response data is "given back" to the flow control window
  - add tests test_02_22 and test_02_23 to reproduce

  Closes #11052

- pingpong: fix compiler warning "assigning an enum to unsigned char"

  Closes #11050

Daniel Stenberg (28 Apr 2023)

- configure: fix detection of apxs (for httpd)

  The condition check was turned the wrong way around!

  Closes #11051

Viktor Szakats (28 Apr 2023)

- ci: `-Wno-vla` no longer necessary

  We handle this issue in the source now.

  Follow-up to b725fe1944b45406676ea3aff333ae3085a848d9

  Reviewed-by: Marcel Raad
  Reviewed-by: Daniel Stenberg
  Closes #11048

Marcel Raad (28 Apr 2023)

- tests/http: make curl_setup.h the first include

  This is required for the macros there to take effect for system
  libraries. Specifically, including the system libraries first led to
  warnings about `_FILE_OFFSET_BITS` being redefined in curl_config.h on
  the Solaris autobuilds for ws-data.c and ws-pingpong.c.
  Also make the curl includes come first for the other source files here
  for consistency.

  Closes https://github.com/curl/curl/pull/11046

Emanuele Torre (27 Apr 2023)

- checksrc: check for spaces before the colon of switch labels

  Closes #11047

Daniel Stenberg (27 Apr 2023)

- RELEASE-NOTES: synced

- libssh: tell it to use SFTP non-blocking

  Reported-by: Andreas Huebner
  Fixes #11020
  Closes #11039

Stefan Eissing (27 Apr 2023)

- http2: enlarge the connection window

  - fixes stalled connections

  - Make the connection window large enough, so that there is
    some room left should 99/100 streams be PAUSED by the application

  Reported-by: Paweł Wegner
  Fixes #10988
  Closes #11043

Daniel Stenberg (27 Apr 2023)

- checksrc: fix SPACEBEFOREPAREN for conditions starting with "*"

  The open paren check wants to warn for spaces before open parenthesis
  for if/while/for but also for any function call. In order to avoid
  catching function pointer declarations, the logic allows a space if the
  first character after the open parenthesis is an asterisk.

  I also spotted what we did not include "switch" in the check but we should.

  This check is a little lame, but we reduce this problem by not allowing
  that space for if/while/for/switch.

  Reported-by: Emanuele Torre
  Closes #11044

- docs: minor polish

  - "an HTTP*" (not "a")
  - remove a few contractions
  - remove a spurious "a"
  - reduce use of "I" in texts

  Closes #11040

- ws: fix CONT opcode check

  Detected by Coverity. Follow-up to 930c00c259

  Closes #11037

Dan Fandrich (27 Apr 2023)

- CI: switch the awslc builds to build out-of-tree

  This is a common configuration that should be tested to avoid
  regressions. The awsls cmake build was already out-of-tree so the
  automake build now joins it.

  Ref: #11006

- tests/http: fix out-of-tree builds

  Add both lib/ directories (src & build) to the search path so
  curl_setup.h and its dependencies can be found.

  Followup-to acd82c8b

  Ref: #11006
  Closes #11036

Daniel Stenberg (27 Apr 2023)

- urlapi: make internal function start with Curl_

  Curl_url_set_authority() it is.

  Follow-up to acd82c8bfd

  Closes #11035

YX Hao (26 Apr 2023)

- cf-socket: turn off IPV6_V6ONLY on Windows if it is supported

  IPV6_V6ONLY refs:
  https://en.wikipedia.org/wiki/IPv6#IPv4-mapped_IPv6_addresses
  https://github.com/golang/go/blob/master/src/net/ipsock_posix.go
  https://en.wikipedia.org/wiki/Unix-like
  https://learn.microsoft.com/en-us/windows/win32/winsock/ipproto-ipv6-socket-o
  ptions

  default value refs:
  https://datatracker.ietf.org/doc/html/rfc3493#section-5.3
  https://www.kernel.org/doc/html/latest/networking/ip-sysctl.html#proc-sys-net
  -ipv6-variables

  Closes #10975

Daniel Stenberg (26 Apr 2023)

- urldata: shrink *select_bits int => unsigned char

  - dselect_bits
  - cselect_bits

  ... are using less than 8 bits. Changed types and moved them towards
  the end of the structs to fit better.

  Closes #11025

Stefan Eissing (26 Apr 2023)

- tests/http: more tests with specific clients

  - Makefile support for building test specific clients in tests/http/clients
  - auto-make of clients when invoking pytest
  - added test_09_02 for server PUSH_PROMISEs using clients/h2-serverpush
  - added test_02_21 for lib based downloads and pausing/unpausing transfers

  curl url parser:
  - added internal method `curl_url_set_authority()` for setting the
    authority part of a url (used for PUSH_PROMISE)

  http2:
  - made logging of PUSH_PROMISE handling nicer

  Placing python test requirements in requirements.txt files
  - separate files to base test suite and http tests since use
    and module lists differ
  - using the files in the gh workflows

  websocket test cases, fixes for we and bufq
  - bufq: account for spare chunks in space calculation
  - bufq: reset chunks that are skipped empty
  - ws: correctly encode frames with 126 bytes payload
  - ws: update frame meta information on first call of collect
    callback that fills user buffer
  - test client ws-data: some test/reporting improvements

  Closes #11006

Jay Satiro (26 Apr 2023)

- libssh2: fix crash in keyboard callback

  - Always set the libssh2 'abstract' user-pointer to the libcurl easy
    handle associated with the ssh session, so it is always passed to the
    ssh keyboard callback.

  Prior to this change and since 8b5f100 (precedes curl 8.0.0), if libcurl
  was built without CURL_DEBUG then it could crash during the ssh auth
  phase due to a null dereference in the ssh keyboard callback.

  Reported-by: Andreas Falkenhahn

  Fixes https://github.com/curl/curl/pull/11024
  Closes https://github.com/curl/curl/pull/11026

Daniel Stenberg (26 Apr 2023)

- docs: clarify that more backends have HTTPS proxy support

  Closes #11033

- KNOWN_BUGS: remove two not-bugs

  - 11.7 signal-based resolver timeouts

  Not considered a bug anymore but just implementation details. People
  should avoid using timeouts with the synchronous name resolver.

  - 11.16 libcurl uses renames instead of locking for atomic operations

  Not a bug, just a description of how it works

  Closes #11032

Harry Sintonen (26 Apr 2023)

- hostip: add locks around use of global buffer for alarm()

  When building with the sync name resolver and timeout ability we now
  require thread-safety to be present to enable it.

  Closes #11030

Daniel Stenberg (26 Apr 2023)

- curl_path: bring back support for SFTP path ending in /~

  libcurl used to do a directory listing for this case (even though the
  documentation says a URL needs to end in a slash for this), but
  4e2b52b5f7a3 modified the behavior.

  This change brings back a directory listing for SFTP paths that are
  specified exactly as /~ in the URL.

  Reported-by: Pavel Mayorov
  Fixes #11001
  Closes #11023

Emanuele Torre (26 Apr 2023)

- docs/libcurl/curl_*escape.3: rename "url" argument to "input"/"string"

  Also reword the DESCRIPTION section to mention "input"/"string" argument
  in bold.

  Closes #11027

- docs/libcurl: minor cleanups

  I was reading curl_unescape(3) and I noticed that there was an extra
  space after the open parenthesis in the SYNOPSIS; I removed the extra
  space.

  I also ran a few  grep -r  commands to find and remove extra spaces
  after '(' in other files, and to find and replace uses of `T*' instead
  of `T *'. Some of the instances of `T*` where unnecessary casts that I
  removed.

  I also fixed a comment that was misaligned in CURLMOPT_SOCKETFUNCTION.3.

  And I fixed some formatting inconsistencies: in curl_unescape(3), all
  function parameter were mentioned with bold text except length, that was
  mentioned as 'length'; and, in curl_easy_unescape(3), all parameters
  were mentioned in bold text except url that was italicised. Now they are
  all mentioned in bold.
  Documentation is not very consistent in how function parameter are
  formatted: many pages italicise them, and others display them in bold
  text; but I think it makes sense to at least be consistent with
  formatting within the same page.

  Closes #11027

Daniel Stenberg (26 Apr 2023)

- man pages: simplify the .TH sections

  - remove the version numbers
  - simplify the texts

  The date and version number will be put there for releases when maketgz
  runs the updatemanpages.pl script.

  Closes #11029

- hostcheck: fix host name wildcard checking

  The leftmost "label" of the host name can now only match against single
  '*'. Like the browsers have worked for a long time.

  - extended unit test 1397 for this
  - move some SOURCE variables from unit/Makefile.am to unit/Makefile.inc

  Reported-by: Hiroki Kurosawa
  Closes #11018

Dan Fandrich (25 Apr 2023)

- smbserver: remove temporary files before exit

  Each execution of test 1451 would leave a file in /tmp before. Since
  Windows can't delete a file while it's open, all the temporary file
  names are stored and deleted on exit.

  Closes #10990

Stefan Eissing (25 Apr 2023)

- Websocket en-/decoding

  - state is fully kept at connection, since curl_ws_send() and
    curl_ws_rec() have lifetime beyond usual transfers
  - no more limit on frame sizes

  Reported-by: simplerobot on github
  Fixes #10962
  Closes #10999

Patrick Monnerat (25 Apr 2023)

- urldata: copy CURLOPT_AWS_SIGV4 value on handle duplication

  Prior to this change STRING_AWS_SIGV4 (CURLOPT_AWS_SIGV4) was wrongly
  marked as binary data that could not be duplicated.

  Without this fix, this option's value is not copied upon calling
  curl_easy_duphandle().

  Closes https://github.com/curl/curl/pull/11021

Stefan Eissing (25 Apr 2023)

- http3: expire unpaused transfers in all HTTP/3 backends

  Closes #11005

- http2: always EXPIRE_RUN_NOW unpaused http/2 transfers

  - just increasing the http/2 flow window does not necessarily
    make a server send new data. It may already have exhausted
    the window before

  Closes #11005

- http2: pass `stream` to http2_handle_stream_close to avoid NULL checks

  Closes #11005

- h2/h3: replace `state.drain` counter with `state.dselect_bits`

  - `drain` was used by http/2 and http/3 implementations to indicate
    that the transfer requires send/recv independant from its socket
    poll state. Intended as a counter, it was used as bool flag only.
  - a similar mechanism exists on `connectdata->cselect_bits` where
    specific protocols can indicate something similar, only for the
    whole connection.
  - `cselect_bits` are cleard in transfer.c on use and, importantly,
    also set when the transfer loop expended its `maxloops` tries.
    `drain` was not cleared by transfer and the http2/3 implementations
    had to take care of that.
  - `dselect_bits` is cleared *and* set by the transfer loop. http2/3
    does no longer clear it, only set when new events happen.

  This change unifies the handling of socket poll overrides, extending
  `cselect_bits` by a easy handle specific value and a common treatment in
  transfers.

  Closes #11005

Daniel Stenberg (25 Apr 2023)

- socketpair: verify with a random value

  ... instead of using the curl time struct, since it would use a few
  uninitialized bytes and the sanitizers would complain. This is a neater
  approach I think.

  Reported-by: Boris Kuschel
  Fixes #10993
  Closes #11015

Stefan Eissing (25 Apr 2023)

- HTTP3: document the ngtcp2/nghttp3 versions to use for building curl

  - refs #11011 to clarify this for people building curl themselves

  Closes #11019

Daniel Stenberg (25 Apr 2023)

- lib: unify the upload/method handling

  By making sure we set state.upload based on the set.method value and not
  independently as set.upload, we reduce confusion and mixup risks, both
  internally and externally.

  Closes #11017

- RELEASE-NOTES: synced

Dan Fandrich (24 Apr 2023)

- CI: don't run CI jobs if only another CI was changed

  A few paths were missed in the last commit, as well as a job added since
  then.

  Followup-to 395b9175

- CI: adjust labeler match patterns

- runtests: support buffering log messages in runner & servers

  Log messages generated with logmsg can now be buffered and returned from
  the runner as a return value.  This will be needed with parallel testing
  to allow all messages for one test to be displayed together instead of
  interspersed with messages of multiple tests. Buffering can be disabled
  by setting a logging callback function with setlogfunc, which is
  currently being done to preserve existing logging behaviour for now.

  Some additional output is generated in verbose and debugprotocol modes,
  which don't always use logmsg. These modes also impact some servers
  which generate extra messages. No attempt is made to buffer everything
  if these modes are enabled.

  Ref: #10818
  Closes #11016

- runtests: more consistently use logmsg in server control code

  Also, display an error when sshversioninfo returns one.

  Ref: #10818

- runtests: create runner functions for clearlocks and stopservers

  runtests.pl now uses runner for all server actions beyond the initial
  variable configuration.

  Ref: #10818

- runtests: tightened servers package exports

  The defaults are intended for runtests.pl, whereas runner.pm needs to
  explicitly specify them.

- runtests: display logs on server failure in singletest()

  This is closer to the place where logs are displayed on test failure.
  Also, only display these logs if -p is given, which is the same flag
  that controls display of test failure logs. Some server log files
  need to be deleted later so that they stay around long enough to be
  displayed on failure.

  Ref: #10818

- runtests: turn a print into a logmsg

  Also enable another couple of useful messages in verbose mode.

  Ref: #10818

Daniel Stenberg (24 Apr 2023)

- http: store the password in the correct variable

  Typo from fc2f1e547a4a, detected by Coverity (because there's dead code
  due to this).

  Closes #11002

Stefan Eissing (24 Apr 2023)

- HTTP3/quiche: terminate h1 response header when no body is sent

  - fixes a failure in test2501 where a response without body was missing
    the final empty line

  Closes #11003

Dan Fandrich (22 Apr 2023)

- runtests: move showdiff into runtests.pl

  It's not used anywhere else.

- devtest: add a new script for testing the test harness

  This is currently useful for starting a test server on its own without
  an associated test, which can be used for interactive curl testing or
  for validating parts of the test harness itself. More commands can be
  added to perform additional functions in the future.

  Ref: #10818
  Closes #11008

- runtests: refactor the main test loop into two

  The test loop now has an initial loop that first runs through all
  possible tests to build a set of those to attempt on this run based on
  features and keywords and only then goes through that new list to run
  them.  This actually makes it three loops through all tests cases, as
  there is an existing loop that gathers possible test numbers from the
  test files on disk.

  This has two minor effects on the output: all the tests that will be
  skipped are displayed at the start (instead of being interspersed with
  other tests) and the -l option no longer shows a count of tests at the
  end or a (misleading) statement that tests have run successfully. The
  skipped tests are also omitted from the test results sent to AppVeyor
  and Azure in CI builds.

  Another effect is a reduction in the amount of work considered part of
  the "Test definition reading and preparation time" reported with -r
  making those figures slightly lower than before.

  Ref: #10818

- runtests: track only the current test timings in runner.pm

  This avoids passing these data through through global variables, which
  soon won't be possible.

  Ref: #10818

- runtests: skip test preprocessing when doing -l

  This speeds up the output tremendously by avoiding unnecessary work.

- runtests: simplify value returned regarding use of valgrind

  As a side effect this will now also show in verbose mode that valgrind
  is being skipped on tests that explicitly disable it, such as 600.

  Ref: #10818

- runtests: fix quoting in Appveyor and Azure test integration

  Test 1442's name was not quoted correctly so wasn't registered in
  Appveyor and it had the wrong name in Azure. The JSON string quotes were
  also invalid, even though both servers happened to accept it regardless.

  Closes #11010

Daniel Stenberg (19 Apr 2023)

- RELEASE-NOTES: synced

Dan Fandrich (18 Apr 2023)

- runtests: spread out the port numbers used by servers

  The server ports are chosen randomly for each server, but the random
  ranges chosen were inconsistently-sized and overlapping. Now, they are
  spread out more so at least the first random port chosen for each server
  is guaranteed to not also be chosen by another server. The starting port
  numbers are also raised to put them in the Ephemeral Port range—not the
  range defined by RFC 6335 but the one used by Linux, which starts lower
  and gives us more room to work with.

  Reported-by: Daniel Stenberg

- runtests: fix problems on <killserver> failure

  The verify time must be set in this case, like all cases. An error
  message needs to be displayed as well.

- runtests: fix perl warning when <tool> is wrong

- runtests: don't try to stop stunnel before trying again

  Calling stopserver() before retrying stunnel due to an error would stop
  the dependent server (such as HTTP) meaning stunnel would have nothing
  to talk to when it came up. Don't try to force a stop when it didn't
  actually start.  Also, don't mark the server as bad for future use when
  it starts up on a retry.

  Reported-by: eaglegai at github
  Tested-by: eaglegai at github
  Fixes #10976

- runtests: don't accidentally randomly choose the same port

  If a server couldn't be started on a port, a new one is randomly chosen
  and the server is tried again. Avoid accidentally using a
  randomly-chosen 0 port offset by adding 1 to the random number.

  Found-by: Daniel Stenberg

- runtests: don't attempt to use a port we know is in use

  This reduces the startup time when there is a known conflict on the
  random port chosen for a server.  This was already done for stunnel, but
  now it's done for all servers.

- http-server: fix server name in a log message

  This changed when the file was renamed in commit cbf57176

- runtests: refactor into more packages

  testutil.pm now contains a few miscellaneous functions that are used in
  several places but have no better place to live.  subvariables moves to
  servers.pm since most variables that it substitutes relate to servers,
  so this is the most appropriate place. Rename a few functions for better
  naming consistency.

  Ref: #10818
  Closes #10995

- runtests: call timestampskippedevents() in singletest

  ..rather than by the runner

- runtests: assume a newer Valgrind by default

  The tests for an older Valgrind version should probably just be deleted,
  given that they're testing for an 18-year-old version.

- runtests: refactor test runner code into runner.pm

  This is code that is directly responsible for running a single test.
  This will eventually run in a separate process as part of the parallel
  testing project.

  Ref: #10818

- runtests: skip unneeded work if test won't be running

  This speeds up tests by avoiding unnecessary processing.

  Ref: #10818

- runtests: factor out singletest_postcheck

  This will eventually need to be part of the test runner.

  Ref: #10818

- test303: kill server after test

  Otherwise, an HTTP test closely following this one with a tight time
  constraint (e.g. 672) could fail because the test server stays sitting
  with the wait command for a while.

Patrick Monnerat (18 Apr 2023)

- OS400: provide ILE/RPG usage examples

  Closes https://github.com/curl/curl/pull/10994

- OS400: improve vararg emulation

  - Use V7R4 RPG procedure overloading to improve vararg emulation.

  From OS400 V7R4 and above, ILE/RPG implements a limited procedure
  overloading feature that can be used to improve curl's typed
  implementation of varargs procedures. This commit applies it to
  curl_easy_setopt(), curl_multi_setopt(), curl_share_setopt() and
  curl_easy_getinfo().

  Closes https://github.com/curl/curl/pull/10994

- OS400: fix and complete ILE/RPG binding

  - Fix wrong definitions of CURL_ZERO_TERNINATED, curl_mime_data() and
    curl_mime_data_ccsid().

  - Add recent definitions, in particular blob, header API and WebSockets
    API.

  - Support for CURLVERSION_ELEVENTH.

  - New functions for EBCDIC support.

  Reflect these changes in README.OS400.

  Closes https://github.com/curl/curl/pull/10994

- OS400: implement EBCDIC support for recent features

  - Support CURLVERSION_ELEVENTH.

  - New function curl_url_strerror_ccsid().

  - curl_easy_setopt_ccsid() supports blobs and 3 recent string options.

  - New function curl_easy_header_ccsid().

  - New generic latin1<-->ccsid conversion functions curl_from_ccsid() and
    curl_to_ccsid() for user convenience.

  - README.OS400 updated accordingly.

  - Removed a leftover QsoSSL support identifier.

  Closes https://github.com/curl/curl/pull/10994

- OS400: rework build scripts

  - Rename shell function "system" to "CLcommand" to avoid confusion with
    built-in command.

  - Reformat scripts. Fix some indentations. Avoid lines > 80 characters
    where possible.

  - Support ASCII runtime development files in a user-defined directory
    path.

  - FIX SONAME detection.

  - Drop form API test program compilation (does not exist anymore).

  Closes https://github.com/curl/curl/pull/10994

Sevan Janiyan (18 Apr 2023)

- tests/sshserver.pl: Define AddressFamily earlier

  As the comment states "Address family must be specified before ListenAddress"
  , otherwise the tests fail to run
  `"failed starting SSH server" 52 times (582, 583, 600, 601, 602, 603, 604, 60
  5, 606 and 43 more)`

  Closes #10983

Stefan Eissing (18 Apr 2023)

- quiche: Enable IDLE egress handling

  Follow-up to 544abeea which added the handling but wrongly left it
  commented out.

  Closes https://github.com/curl/curl/pull/11000

Daniel Stenberg (18 Apr 2023)

- docs/examples/protofeats.c: Outputs all protocols and features

  Showing off one way to get to char pointer arrays of info returned by
  curl_version_info()

  Closes #10991

- tests/keywords.pl: remove

  This script does not work since the introduction of the test
  preprocessing. If we need this functionality, it probably needs to be
  moved into the runtests tool or similar.

  Reported-by: Dan Fandrich
  Fixes #10895
  Closes #10987

Stefan Eissing (17 Apr 2023)

- http2: support HTTP/2 to forward proxies, non-tunneling

  - with `--proxy-http2` allow h2 ALPN negotiation to
    forward proxies
  - applies to http: requests against a https: proxy only,
    as https: requests will auto-tunnel
  - adding a HTTP/1 request parser in http1.c
  - removed h2h3.c
  - using new request parser in nghttp2 and all h3 backends
  - adding test 2603 for request parser
  - adding h2 proxy test cases to test_10_*

  scorecard.py: request scoring accidentally always run curl
  with '-v'. Removed that, expect double numbers.

  labeller: added http1.* and h2-proxy sources to detection

  Closes #10967

Daniel Stenberg (17 Apr 2023)

- curl_easy_unescape.3: rename the argument

  and highlight it appropriately in the text.

  Closes #10979

Viktor Szakats (17 Apr 2023)

- autotools: sync up clang picky warnings with cmake

  Bringing missing options over from CMake.

  Move around existing `-Wno-pointer-bool-conversion` option to come
  _after_ `-Wconversion`.

  Reviewed-by: Marcel Raad
  Closes #10974

Daniel Stenberg (17 Apr 2023)

- tests/libtest/lib1900.c: remove

  This file was left behind when the rest of the test was previously removed.

  Follow-up to e50a877df74f

- src/tool_operhlp.c: fix value stored to 'uerr' is never read

  Ref: https://github.com/curl/curl/pull/10974#issuecomment-1510461343
  Reported-by: Viktor Szakats
  Closes #10982

Viktor Szakats (16 Apr 2023)

- cmake: speed up and extend picky clang/gcc options

  Extend existing picky compiler options with ones missing compared to
  autotools builds. Also sync options between clang and gcc.

  Redesign the way we enable these options to avoid the slow option
  detection almost completely.

  This reduces the number of detections from 35 to zero for clang and
  3 for gcc, even after adding a bunch of new options.

  clang 3.0 (2011-11-29) and gcc 2.95 (1999-07-31) now required.

  Also show enabled picky options.

  Ref: https://github.com/libssh2/libssh2/pull/952

  Reviewed-by: Daniel Stenberg
  Closes #10973

Andreas Falkenhahn (16 Apr 2023)

- nbtlm: use semicolons instead of commas for (void) args

  Closes #10978

Daniel Stenberg (15 Apr 2023)

- multi: free up more data earleier in DONE

  Before checking for more users of the connection and possibly bailing
  out.

  Fixes #10971
  Reported-by: Paweł Wegner
  Closes #10972

- RELEASE-NOTES: synced

- curl: do NOT append file name to path for upload when there's a query

  Added test 425 to verify.

  Reported-by: Dirk Rosenkranz
  Bug: https://curl.se/mail/archive-2023-04/0008.html
  Closes #10969

- libcurl-thread.3: improved name resolver wording

  And make better .SH sections

  Closes #10966

Colman Mbuya (14 Apr 2023)

- CURLOPT_PROXY_SSL_VERIFYPEER.3: fix minor grammar mistake

  Closes #10968

Daniel Stenberg (14 Apr 2023)

- curl: add --proxy-http2

  For trying HTTP/2 with an HTTPS proxy.

  Closes #10926

- KNOWN_BUGS: remove fixed or outdated issues, move non-bugs

  - remove h3 issues believed to be fixed

  - make the flaky CI issue be generic and not Windows specific

  - "TLS session cache does not work with TFO" now documented

    This is now a documented restriction and not a bug. TFO in general is
    rarely used and has other problems, making it a low-priotity thing to
    work on.

  - remove "Renegotiate from server may cause hang for OpenSSL backend"

    This is an OpenSSL issue, not a curl one. Even if it taints curl.

  - rm "make distclean loops forever"

  - rm "configure finding libs in wrong directory"

    Added a section to docs/INSTALL.md about it.

  - "A shared connection cache is not thread-safe"

    Moved over to TODO and expanded for other sharing improvements we
    could do

  - rm "CURLOPT_OPENSOCKETPAIRFUNCTION is missing"

  - rm "Blocking socket operations in non-blocking API"

    Already listed as a TODO

  - rm "curl compiled on OSX 10.13 failed to run on OSX 10.10"

    Water under the bridge. No one cares about this anymore.

  - rm "build on Linux links libcurl to libdl"

    Verified to not be true (anymore).

  - rm "libpsl is not supported"

    The cmake build supports it since cafb356e19cda22

  Closes #10963

- url: fix PVS nits

  - expression 'hostptr' is always true
  - a part of conditional expression is always true: proxypasswd
  - expression 'proxyuser' is always true
  - avoid multiple Curl_now() calls in allocate_conn

  Ref: #10929
  Closes #10959

- bufq: simplify since expression is always true

  The check for 'len' is already done so it will remain true until
  updated. Pointed out by PVS.

  Ref: #10929
  Closes #10958

- hash: fix assigning same value

  Pointed out by PVS

  Ref: #10929
  Closes #10956

- cookie: address PVS nits

  - avoid assigning the same value again
  - remove superfluous check of co->domain
  - reduce variable scope for namep/valuep

  Ref: #10929
  Closes #10954

Stefan Eissing (14 Apr 2023)

- cf-socket: Disable socket receive buffer by default

  - Disable socket receive buffer unless USE_RECV_BEFORE_SEND_WORKAROUND
    is in place.

  While we would like to use the receive buffer, we have stalls in
  parallel transfers where not all buffered data is consumed and no socket
  events happen.

  Note USE_RECV_BEFORE_SEND_WORKAROUND is a Windows sockets workaround
  that has been disabled by default since b4b6e4f1, due to other bugs.

  Closes https://github.com/curl/curl/pull/10961

- cf-h2-proxy: fix processing ingress to stop too early

  - progress ingress stopped too early, causing data
    from the underlying filters to not be processed and
    report that no tunnel data was available
  - this lead to "hangers" where no socket activity was
    seen but data rested in buffers

  Closes #10952

- http3: check stream_ctx more thoroughly in all backends

  - callbacks and filter methods might be invoked at unexpected
    times, e.g. when the transfer's stream_ctx has not been initialized
    yet or, more likely, has already been taken down.
  - check for existance of stream_ctx in such places and return
    an error or silently succeed the call.

  Closes #10951

Daniel Stenberg (13 Apr 2023)

- ftp: fix 'portsock' variable was assigned the same value

  Pointed out by PVS

  Ref: #10929
  Closes #10955

- ftp: remove dead code

  This condition can never be true here since it is handled already 28
  lines above.

  Pointed out by PVS.

  Ref: #10929
  Closes #10957

- cf-h1-proxy: skip an extra NULL assign

  and use Curl_safefree() once to save another NULL assign. Found by PVS.

  Ref. #10929
  Closes #10953

Philip Heiduck (13 Apr 2023)

- GHA: suppress git clone output

  Follow-up: https://github.com/curl/curl/commit/8203aa6ed405ec832d2c62f18dfda2
  93f89a23f9

  Closes #10949

Stefan Eissing (13 Apr 2023)

- cf-socket: remove dead code discovered by PVS

  Closes #10960

Daniel Stenberg (13 Apr 2023)

- http: skip a double NULL assign

  and also use a local variable to shorten the long names and increase
  readability in the function. Pointed out by PVS.

  Ref: #10929
  Closes #10950

- mime: skip NULL assigns after Curl_safefree()

  Pointed out by PVS.

  Ref: #10929
  Closes #10947

- rtsp: skip NULL assigns after Curl_safefree()

  ... since this is a macro that assigns NULL itself. Pointed out by PVS.

  Ref: #10929
  Closes #10946

- smb: remove double assign

  The same value is assigned the same value already a few lines above.
  Pointed out by PVS.

  Ref: #10929
  Closes #10945

- transfer: skip extra assign

  The 'result' variable already contains CURLE_OK at this point, no use in
  setting it again. Pointed out by PVS.

  Ref: #10929
  Closes #10944

- urlapi: skip a pointless assign

  It stores a null byte after already having confirmed there is a null
  byte there. Detected by PVS.

  Ref: #10929
  Closes #10943

Philip Heiduck (13 Apr 2023)

- GHA: suppress git clone output

  Closes #10939

Stefan Eissing (13 Apr 2023)

- tests: make test_12_01 a bit more forgiving on connection counts

- cf-socket: add socket recv buffering for most tcp cases

  - use bufq as recv buffer, also for Windows pre-receive handling
  - catch small reads followed by larger ones in a single socket
    call. A common pattern on TLS connections.

  Closes #10787

Daniel Stenberg (13 Apr 2023)

- urlapi: cleanups

  - move host checks together
  - simplify the scheme parser loop and the end of host name parser
  - avoid itermediate buffer storing in multiple places
  - reduce scope for several variables
  - skip the Curl_dyn_tail() call for speed
  - detect IPv6 earlier and skip extra checks for such hosts
  - normalize directly in dynbuf instead of itermediate buffer
  - split out the IPv6 parser into its own funciton
  - call the IPv6 parser directly for ipv6 addresses
  - remove (unused) special treatment of % in host names
  - junkscan() once in the beginning instead of scattered
  - make junkscan return error code
  - remove unused query management from dedotdotify()
  - make Curl_parse_login_details use memchr
  - more use of memchr() instead of strchr() and less strlen() calls
  - make junkscan check and return the URL length

  An optimized build runs one of my benchmark URL parsing programs ~41%
  faster using this branch. (compared against the shipped 7.88.1 library
  in Debian)

  Closes #10935

Josh McCullough (13 Apr 2023)

- http2: fix typo in infof() call

  Closes #10940

Daniel Stenberg (12 Apr 2023)

- noproxy: pointer to local array 'hostip' is stored outside scope

  Ref: #10929
  Closes #10933

Stefan Eissing (12 Apr 2023)

- connect: fix https connection setup to treat ssl_mode correctly

  - for HTTPS protocol, a disabled ssl should never be acceptables.

  Closes #10934

Douglas R. Reno (12 Apr 2023)

- CMakeLists.txt: fix typo for Haiku detection

  Closes #10937

Dan Fandrich (11 Apr 2023)

- pathhelp: use the cached $use_cygpath when available

- runtests: eliminate unneeded variable

- runtests: make the # of server start attempts a constant

- runtests: on startup failure call displaylogs only in serverfortest

  This reduces the number of calls spread throughout the code.

  Ref: #10818
  Closes #10919

- runtests: return an error code with startservers()

  The code indicates the kind of failure encountered in starting a server,
  which can be used by the caller to tailor the user experience.

  Ref: #10818

- runtests: abort early if runpingpongserver is given a bad server type

- runtests: don't use the SMB server verification time as reference

  %FTPTIME2 and %FTPTIME3 should be set by the FTP server only, for
  consistency.

- tests: factor out the test server management code

  This now lives in servers.pm with some configuration variables moved to
  globalconfig.pm

  Ref: #10818

- runtests: remove an inappropriate use of runclientoutput

  This function is intended for running client code, not servers.

- runtests: only add $LIBDIR to the path for checktestcmd

  Since checkcmd is for finding servers, there will never be anything in
  this directory of interest to them.

  Ref: #10818

- tests: log sshserver.pl messages to a file

  The logmsg messages were thrown away before, so they are now available
  for debugging.

- runtests: also show DISABLED tests with -l

  Other reasons for skipping tests are ignored for -l, so being explicitly
  disabled should be too.

- runtests: move the UNIX sockets into $PIDDIR

  These were missed when the other server files were moved there.

  Follow-up to 70d2fca2

  Ref: #10818

- tests: tighten up perl exports

  This reduces namespace pollution a little.

  Ref: #10818

- tests: turn perl modules into full packages

  This helps enforce more modularization and encapsulation. Enable and fix
  warnings on a few packages.  Also, rename ftp.pm to processhelp.pm since
  there's really nothing ftp-specific in it.

  Ref: #10818

Daniel Stenberg (11 Apr 2023)

- multi: remove a few superfluous assigns

  PVS found these "The 'rc' variable was assigned the same value." cases.

  Ref: #10929
  Closes #10932

- schannel: add clarifying comment

  Explaining how the PVS warning in #10929 is wrong: Dereferencing of the
  null pointer 'backend->cred' might take place.

  Closes #10931

- cookie: clarify that init with data set to NULL reads no file

  ... and make Curl_cookie_add() require 'data' being set proper with an
  assert.

  The function has not worked with a NULL data for quite some time so this
  just corrects the code and comment.

  This is a different take than the proposed fixed in #10927

  Reported-by: Kvarec Lezki
  Ref: #10929
  Closes #10930

Kvarec Lezki (11 Apr 2023)

- vtls: remove int typecast for sizeof()

  V220 Suspicious sequence of types castings: memsize -> 32-bit integer ->
  memsize. The value being cast: 'sizeof
  (buf->data)'. curl\lib\vtls\vtls.c 2025

  https://pvs-studio.com/en/docs/warnings/v220/

  Closes #10928

Stefan Eissing (11 Apr 2023)

- http2: fix copynpaste error reported by coverity

  - move all code handling HTTP/2 frames for a particular
    stream into a separate function to keep from confusing
    the call `data` with the stream `data`.

  Closes #10924

Dan Fandrich (11 Apr 2023)

- tests: log a too-long Unix socket path in sws and socksd

  Ref: #10919

Daniel Stenberg (11 Apr 2023)

- gen.pl: error on duplicated See-Also fields

  Updated http2.d accordingly.

  Closes #10925

- http2: avoid possible null pointer dereference

  Reported-by: Dan Fandrich
  Fixes #10920
  Closes #10923

- lib1560: verify that more bad host names are rejected

  when setting the hostname component of a URL

  Closes #10922

- curl_url_set.3: mention that users can set content rather freely

  ... which then might render bad URLs if you extract a URL later.

  Closes #10921

Dan Fandrich (10 Apr 2023)

- CI: retry failed downloads of aws-lc

  Don't fail the build in case of a temporary server problem.

- test1169: fix so it works properly everywhere

  - Use an absolute path for the -L option since the module isn't in the
    perl path
  - Create the needed test file in a <file> section; <precheck> isn't
    intended for this
  - Fix the test number in the file name, which was wrong

  Follow-up to f754990a

  Ref: #10818
  Fixes #10889
  Closes #10917

- tests: stop using strndup(), which isn't portable

  It's not available on Solaris 10, for example. Since this is just test
  code that doesn't need to use an optimized system version, replace it
  with the implementation copied from tool_cb_hdr.c.

- runtests: fix an incorrect comment about the ld_preload feature

  Follow-up to 1f631864

  Ref: #10818

Daniel Stenberg (9 Apr 2023)

- urlapi: prevent setting invalid schemes with *url_set()

  A typical mistake would be to try to set "https://" - including the
  separator - this is now rejected as that would then lead to
  url_get(... URL...) would get an invalid URL extracted.

  Extended test 1560 to verify.

  Closes #10911

Biswapriyo Nath (9 Apr 2023)

- http2: remove unused Curl_http2_strerror function declaration

  Curl_http2_strerror was renamed to http2_strerror in
  05b100aee247bb9bec8e9a1b0 and then http2_strerror was removed in
  5808a0d0f5ea0399d4a2a2

  This also fixes the following compiler error

  lib/http2.h:41:33: error: unknown type name 'uint32_t'
  lib/http2.h:1:1: note: 'uint32_t' is defined in header '<stdint.h>'

  Closes #10912

Daniel Stenberg (8 Apr 2023)

- RELEASE-NOTES: synced

SuperIlu on github (8 Apr 2023)

- config-dos.h: fix SIZEOF_CURL_OFF_T for MS-DOS/DJGPP

  Fixes #10905
  Closes #10910

Daniel Stenberg (8 Apr 2023)

- lib: remove CURLX_NO_MEMORY_CALLBACKS

  The only user of this define was 'chkdecimalpoint' - a special purpose
  test tool that was built but not used anymore (since 17c18fbc3 - Apr
  2020).

  Closes #10908

- CURLPROXY_HTTPS2: for HTTPS proxy that may speak HTTP/2

  Setting this proxy type allows curl to negotiate and use HTTP/2 with
  HTTPS proxies.

  Closes #10900

Ali Khodkar (8 Apr 2023)

- write-out.d: add missing periods

  Closes #10897

Daniel Stenberg (7 Apr 2023)

- http2: remove check for !data after it was already dereferenced

  Pointed out by Coverity

  Closes #10906

- http_proxy: provide missing arg to infof() call

  Pointed out by Coverity

  Closes #10904

- content_encoding: only do tranfer-encoding compression if asked to

  To reduce surprises. Update test 387 and 418 accordingly.

  Closes #10899

- sws: comparison of unsigned expression < 0 is always false

  Follow-up to 356dd0b73a75ed6d5

  Closes #10903

- lib/cmake: add HAVE_WRITABLE_ARGV check

  Assisted-by: Jakub Zakrzewski
  Closes #10896

- configure: don't set HAVE_WRITABLE_ARGV on Windows

  Ref: #10888
  Closes #10896

- vtls: fix build error when proxy-disabled

  Closes #10901

Stefan Eissing (6 Apr 2023)

- tests: increase sws timeout for more robust testing

  - for https CONNECT forwarding, this was fixed at 5 seconds
    which led to spurious CI test failures
  - add --keepalive parameter to sws to control this
  - let httpserver use 30 seconds

  Closes #10898

- http2: move HTTP/2 stream vars into local context

  - remove NGHTTP2 members of `struct HTTP`
  - add `void *h2_ctx` to `struct HTTP`
  - add `void *h3_ctx` to `struct HTTP`
  - separate h2/h3 pointers are needed for eyeballing
  - manage local stream_ctx in http implementations

  Closes #10877

- proxy: http2 proxy tunnel implementation

  - currently only on debug build and when env variable
    CURL_PROXY_TUNNEL_H2 is present.
  - will ALPN negotiate with the proxy server and switch
    tunnel filter based on the protocol negotiated.
  - http/1.1 tunnel code moved into cf-h1-proxy.[ch]
  - http/2 tunnel code implemented in cf-h2-proxy.[ch]
  - tunnel start and ALPN set remains in http_proxy.c
  - moving all haproxy related code into cf-haproxy.[ch]

  VTLS changes
  - SSL filters rely solely on the "alpn" specification they
    are created with and no longer check conn->bits.tls_enable_alpn.
  - checks on which ALPN specification to use (or none at all) are
    done in vtls.c when creating the filter.

  Testing
  - added a nghttpx forward proxy to the pytest setup that
    speaks HTTP/2 and forwards all requests to the Apache httpd
    forward proxy server.
  - extending test coverage in test_10 cases
  - adding proxy tests for direct/tunnel h1/h2 use of basic auth.
  - adding test for http/1.1 and h2 proxy tunneling to pytest

  Closes #10780

- vtls and h2 improvements

  - eliminate receive loop in vtls to fill buffer. This may
    lead to partial reads of data which is counter productive
  - let http2 instead loop smarter to process pending network
    data without transfer switches

  scorecard improvements
  - do not start caddy when only httpd is requested
  - allow curl -v to stderr file on --curl-verbose

  Closes #10891

Daniel Stenberg (6 Apr 2023)

- tests: 1078 1288 1297 use valid IPv4 addresses

  With the enhanced URL parser, these tests failed because of their bad
  IPv4 use.

- urlapi: detect and error on illegal IPv4 addresses

  Using bad numbers in an IPv4 numerical address now returns
  CURLUE_BAD_HOSTNAME.

  I noticed while working on trurl and it was originally reported here:
  https://github.com/curl/trurl/issues/78

  Updated test 1560 accordingly.

  Closes #10894

- RELEASE-NOTES: synced

- urlapi: URL encoding for the URL missed the fragment

  Meaning that it would wrongly still store the fragment using spaces
  instead of %20 if allowing space while also asking for URL encoding.

  Discovered when playing with trurl.

  Added test to lib1560 to verify the fix.

  Closes #10887

- rtsp: convert mallocs to dynbuf for RTP buffering

  Closes #10786

- tool_writeout: add URL component variables

  Output specific components from the used URL. The following variables
  are added for this purpose:

    url.scheme, url.user, url.password, url.options, url.host, url.port,
    url.path, url.query, url.fragment, url.zoneid

  Add the following for outputting parts of the "effective URL":

   urle.scheme, urle.user, urle.password, urle.options, urle.host, urle.port,
   urle.path, urle.query, urle.fragment, urle.zoneid

  Added test 423 and 424 to verify.

  Closes #10853

Stefan Eissing (4 Apr 2023)

- tests/http: improved httpd detection

  - better error messages when not found/complete
  - handling of `--without-test-httpd`

  Reported-by: kwind on github
  Fixes #10879
  Closes #10883

Daniel Stenberg (4 Apr 2023)

- configure: make quiche require quiche_conn_send_ack_eliciting

  curl now requires quiche version >= 1.17.1 to be used and this function
  was added in this version and makes a convenient check.

  This requirement is because this is the lowest quiche version that
  supports peer-initiated key updates correctly.

  Closes #10886

Dan Fandrich (1 Apr 2023)

- unit tests: use the unit test infrastructure better

  Allow UNITTEST_STOP to return the error code, use the fail & abort
  macros to indicate test failure and return success instead of fail if
  the unit test can't test anything because of missing features at
  compile-time.  A couple of tests could never fail because they were
  overriding the failure return code.

- runtests: strip EOL on precheck output on Windows, too

  Precheck failures would show on two lines in the test summary output
  otherwise.

- tests: move server config files under the pid dir

  These files are generated by the test servers and must therefore be
  found in the log directory to make them available to only those servers
  once multiple test runners are executing in parallel. They must also not
  be deleted with the log files, so they are stored in the pidfile
  directory.

  Ref: #10818
  Closes #10875

- runtests: use the ssh key filenames from the sshhelp package

- tests: move pidfiles and portfiles under the log directory

  This is to segregate all files written by a test process into a single
  root to allow for future parallel testing.

  Ref: #10818
  Closes #10874

- runtests: minor code cleanups

- runtests: call processexists() and pidfromfile()

  rather than duplicating the logic in several places.

Viktor Szakats (31 Mar 2023)

- cmake: do not add zlib headers for openssl

  Logic copied earlier from wolfSSL. wolfSSL requires zlib headers for its
  public headers. OpenSSL does not, so stop adding zlib headers for it.

  Follow-up to 1e3319a167d2f32d295603167486e9e88af9bb4e

  Closes #10878

Stefan Eissing (31 Mar 2023)

- rustls: fix error in recv handling

  - when rustls is told to recieve more TLS data and its internal
    plaintext buffers are full, it returns an IOERROR
  - avoid receiving TLS data while plaintext is not read empty

  pytest:
  - increase curl run timeout when invoking pytest with higher verbosity

  Closes #10876

- http3: improvements across backends

  - ngtcp2: using bufq for recv stream data
  - internal stream_ctx instead of `struct HTTP` members
    for quiche, ngtcp2 and msh3
  - no more QUIC related members in `struct HTTP`
  - experimental use of recvmmsg(), disabled by default
    - testing on my old debian box shows no throughput improvements.
    - leaving it in, but disabled, for future revisit
  - vquic: common UDP receive code for ngtcp2 and quiche
  - vquic: common UDP send code for ngtcp2 and quiche
  - added pytest skips for known msh3 failures
  - fix unit2601 to survive torture testing
  - quiche: using latest `master` from quiche and enabling large download
    tests, now that key change is supported
  - fixing test_07_21 where retry handling of starting a stream
    was faulty
  - msh3: use bufq for recv buffering headers and data
  - msh3: replace fprintf debug logging with LOG_CF where possible
  - msh3: force QUIC expire timers on recv/send to have more than
    1 request per second served

  Closes #10772

Dan Fandrich (30 Mar 2023)

- test1471/2: add http as a required feature

  curl bails out early with a different error message if http support is
  compiled out.

  Ref: #10705

- tests: limit return code of unit tests and lib tests

  Values greater than 125 have special meanings, so cap it there.  Unit
  tests and lib tests use the number of failures as the return code, so a
  large number of failures (such as test 2601 as a torture test) can
  exceed this causing the test to be erroneously reported as having
  failed.

  Ref: #10720

- test1960: point to the correct path for the precheck tool

  Otherwise, it might find the binary in .libs which can cause it to use
  the system libcurl which can fail. This error is only visible by
  noticing that the test is skipped.

  Follow-up to e4dfe6fc

  Ref: #10651

- tests: use the proper %LOGDIR path on two tests

  Follow-up to e7a021e1

  Ref: #10818

Daniel Stenberg (30 Mar 2023)

- rtsp: fix Value stored to 'skip_size' is never read

  Pointed out by scan-build

  Follow-up to 6c6306f3008f2c9b20a64

  Closes #10872

Stefan Eissing (30 Mar 2023)

- tests/http: relax connection check in test_07_02

  Only 1 connection will be used when curl is slow, happens when
  address-sanitized in CI, for example

  Closes #10865

- http2: flow control and buffer improvements

  - use bufq for send/receive of network data
  - usd bufq for send/receive of stream data
  - use HTTP/2 flow control with no-auto updates to control the
    amount of data we are buffering for a stream
    HTTP/2 stream window set to 128K after local tests, defined
    code constant for now
  - elminiating PAUSEing nghttp2 processing when receiving data
    since a stream can now take in all DATA nghttp2 forwards

  Improved scorecard and adjuste http2 stream window sizes
  - scorecard improved output formatting and options default
  - scorecard now also benchmarks small requests / second

  Closes #10771

Dan Fandrich (30 Mar 2023)

- runtests: show error message if file can't be written

- tests: fix remaining servers to run with a dynamic log directory

  This final commit in the series is sufficient to allow the tests succeed
  if $LOGDIR is changed in runtests.pl.

  Ref: #10818
  Closes #10866

- tests: fix fake_ntlm to run with a dynamic log directory

  Ref: #10818

- tests: fix http servers to run with a dynamic log directory

  Ref: #10818

- tests: fix ftpserver to run with a dynamic log directory

  Ref: #10818

- tests: fix C servers to run with a dynamic log directory

  Ref: #10818

- tests: fix lib tests to run with a dynamic log directory

  Ref: #10818

- tests: fix unit tests to run with a dynamic log directory

  Ref: #10818

- tests: use %LOGDIR to refer to the log directory

  This will allow it be set dynamically.

  Ref: #10818

- runtests: track verification time even if no files to compare

- getpart: better handle case of file not found

- testcurl: bump version date

  It hadn't been updated in 9 years; it's time.

- tests: switch to 3-argument open in test suite

  The perl 2-argument open has been considered not-quite-deprecated since
  the 3-argument form was introduced almost a quarter century ago.

- tests: silence some Perl::Critic warnings in test suite

  Not all warnings are fixed; many are as much stylistic suggestions than
  anything and IMHO don't do much to actually improve the code.

  Ref: #10818
  Closes #10861

- docs: bump the minimum perl version to 5.6

  It's actually been this way since at least 2012 (when a 3-argument open
  was added to runtests.pl). Given the lack of complaints in the interim,
  it's safe to call this 23 year old perl version the minimum.

- runtests: memoize the getpart* subroutines to speed up access

  The refactored code calls these functions with the same arguments more
  often, so this prevents redundant test case file parsing.

  Approved-by: Daniel Stenberg
  Ref: #10818
  Closes #10833

- runtests: remove duplicated feature variables

  Use the feature map stored in the hash table instead. Most of the
  variables were only used only once, to set the value in the hash table.

  Ref: #10818

- runtests: also ignore test file problems when ignoring results

  This simplifies error handling in the test verification code and makes
  it more consistent.

  Ref: #10818

- runtests: more refactoring for clarity

  Ref: #10818

- runtests: don't start servers if -l is given

- runtests: fix typos

- runtests: refactor singletest() into separate functions

  This takes it from a 1200 line behemoth into something more manageable.
  The content and order of the functions is taken almost directly from
  singletest() so the diff sans whitespace is quite short.

  Ref: #10818

- runtests: refactor singletest() into distinct sections

  Namely:
  - Verify that this test case should be run
  - Start the servers needed to run this test case
  - Check that test environment is fine to run this test case
  - Prepare the test environment to run this test case
  - Run the test command
  - Clean up after test command
  - Verify test succeeded

  Ref: #10818

- runtests: stop copying a few arrays where not needed

  Unlike some other languages that just copy a pointer, perl copies the
  entire array contents which takes time for a large array.

  Ref: #10818

- runtests: reduce redundant calls to getpart/getpartattr

  These functions scan through the entire test file every time to find the
  right section, so they can be slow for large test files.

  Ref: #10818

- tests: document that the unittest keyword is special

  Also, add other features that were missing.

Stefan Eissing (30 Mar 2023)

- docs: add documentation for bufq

  Closes #10869

Daniel Stenberg (30 Mar 2023)

- RELEASE-NOTES: synced

Matt Jolly (30 Mar 2023)

- hostip: refuse to resolve the .onion TLD

  RFC 7686 states that:

  > Applications that do not implement the Tor
  > protocol SHOULD generate an error upon the use of .onion and
  > SHOULD NOT perform a DNS lookup.

  Let's do that.

  https://www.rfc-editor.org/rfc/rfc7686#section-2

  Add test 1471 and 1472 to verify

  Fixes #543
  Closes #10705

Philip Heiduck (30 Mar 2023)

- GHA: update ngtcp2-*.yml to v0.10.0

  Closes #10612

Stefan Eissing (30 Mar 2023)

- tests/http: fix log formatting on wrong exit code

  Closes #10868

Daniel Stenberg (30 Mar 2023)

- spellcheck.words: unify the AWS-LC spelling

  Follow-up to 34ef4fab22d93

  Closes #10867

Jim King (30 Mar 2023)

- openssl: interop with AWS-LC

  * Configure changes to detect AWS-LC
  * CMakeLists.txt changes to detect AWS-LC
  * Compile-time branches needed to support AWS-LC
  * Correctly set OSSL_VERSION and report AWS-LC release number
  * GitHub Actions script to build with autoconf and cmake against AWS-LC

  AWS-LC is a BoringSSL/OpenSSL derivative
  For more information see https://github.com/awslabs/aws-lc/

  Closes #10320

Viktor Szakats (30 Mar 2023)

- cmake: picky-linker fixes for openssl, ZLIB, H3 and more

  - fix HTTP/3 support detection with OpenSSL/quictls built with ZLIB.
    (Requires curl be built with ZLIB option also.)

  - fix HTTP/3 support detection with OpenSSL/quictls/LibreSSL and `ld`
    linker on Windows.

  - fix HTTP/3 support detection with wolfSSL to automatically add
    `ws2_32` to the lib list on Windows. For all linkers.

  - reposition ZLIB (and other compression) detection _after_ TLS
    detection, but before calling HTTP/3-support detection via
    `CheckQuicSupportInOpenSSL`.

    May be a regression from ebef55a61df0094b9790710a42f63c48e7de3c13
    May fix #10832 (Reported-by: Micah Snyder)

    This also seems to fix an odd case, where OpenSSL/quictls is correctly
    detected, but its header path is not set while compiling, breaking
    build at `src/curl_ntlm_core.c`. Reason for this remains undiscovered.

  - satisfy "picky" linkers such as `ld` with MinGW, that are highly
    sensitive to lib order, by also adding brotli to the beginning of the
    lib list.

  - satisfy "picky" linkers by adding certain Windows systems libs to
    the lib list for OpenSSL/LibreSSL. (Might need additional ones for
    other forks, such as `pthread` for BoringSSL.)

  Note: It'd make sense to _always_ add `ws2_32`, `crypt32` (except
  Windows App targets perhaps?), `bcrypt` (except old-mingw!) on Windows
  at this point. They are almost always required, and if some aren't,
  they are ignored by the linker with no effect on final binaries.

  Closes #10857

Stefan Eissing (30 Mar 2023)

- vlts: use full buffer size when receiving data if possible

  SSL backends like OpenSSL/wolfSSL and other return the content of one
  TLS record on read, but usually there are more available.

  Change the vtls cfilter recv() function to fill the given buffer until a
  read would block.

  Closes #10736

dengjfzh on github (30 Mar 2023)

- rtsp: skip malformed RTSP interleaved frame data

  Some IP cameras send malformed RTSP interleaved frames sometimes, which
  can cause curl_easy_perform return 1 (CURLE_UNSUPPORTED_PROTOCOL).  This
  change attempts to skip clearly incorrect RTSP interleaving frame data.

  Closes #10808

Stefan Eissing (30 Mar 2023)

- lib: add `bufq` and `dynhds`

  Adding `bufq`:
  - at init() time configured to hold up to `n` chunks of `m` bytes each.
  - various methods for reading from and writing to it.
  - `peek` support to get access to buffered data without copy
  - `pass` support to allow buffer flushing on write if it becomes full
  - use case: IO buffers for dynamic reads and writes that do not blow up
  - distinct from `dynbuf` in that:
    - it maintains a read position
    - writes on a full bufq return CURLE_AGAIN instead of nuking itself
  - Init options:
    - SOFT_LIMIT: allow writes into a full bufq
    - NO_SPARES: free empty chunks right away
  - a `bufc_pool` that can keep a number of spare chunks to
    be shared between different `bufq` instances

  Adding `dynhds`:
  - a straightforward list of name+value pairs as used for HTTP headers
  - headers can be appended dynamically
  - headers can be removed again
  - headers can be replaced
  - headers can be looked up
  - http/1.1 formatting into a `dynbuf`
  - configured at init() with limits on header counts and total string
    sizes
  - use case: pass a HTTP request or response around without being version
    specific
  - express a HTTP request without a curl easy handle (used in h2 proxy
    tunnels)
  - future extension possibilities:
    - conversions of `dynhds` to nghttp2/nghttp3 name+value arrays

  Closes #10720

- pytest: improvements for suitable curl and error output

  - will check built curl for http and https support and
    skip all tests if not there
  - will dump stdout/stderr/trace output on errored responses

  Closes #10829

Daniel Stenberg (29 Mar 2023)

- lib: use correct printf flags for sockets and timediffs

  Introduces CURL_FORMAT_SOCKET_T for outputting socket numbers.

  Fixes #10737
  Reported-by: Gisle Vanem
  Closes #10855

- telnet: make MSVC ignore warning for assignment within conditional

  Follow-up to d92a5007b60e0af7d

  Closes #10859

- ws: handle reads before EAGAIN better

  Reported-by: simplerobot on github
  Fixes #10831
  Closes #10856

- test1592: add flaky keyword

  Closes #10860

Frank Gevaerts (28 Mar 2023)

- lib/sha256.c: typo fix in comment (duplicated "is available")

  Closes #10851

Arne Soete (28 Mar 2023)

- tests: update tests/httpd references to tests/http

  tests/httpd was renamed to tests/http in #10654. This patch updates some
  references in the README

  Closes #10854

Kamil Dudka (28 Mar 2023)

- telnet: simplify the implementation of str_is_nonascii()

  There is no need to traverse the string twice.

  Closes #10852

Frank Gevaerts (28 Mar 2023)

- curl_easy_getinfo.3: typo fix (duplicated "from the")

  Closes #10850

Philip Heiduck (28 Mar 2023)

- wolfssl.yml: bump to version 5.6.0

  Closes #10843

Daniel Stenberg (28 Mar 2023)

- RELEASE-NOTES: synced

Ronan Pigott (28 Mar 2023)

- docs/cmdline-opts: document the dotless config path

  The real xdg config path is $XDG_CONFIG_HOME/curlrc, without the dot.
  The dotless name seems preferable, so let's match the documentation to
  the behavior.

  Closes #10849

Daniel Stenberg (28 Mar 2023)

- HTTP-COOKIES.md: mention the #HttpOnly_ prefix

  Fixes #10847
  Reported-by: Harry Sintonen
  Closes #10848

- dynbuf: never allocate larger than "toobig"

  As dynbufs always have a fixed maximum size which they are not allowed
  to grow larger than, making sure that it never allocates a larger buffer
  makes sure the buffer does not allocate memory that will never be used.

  Closes #10845

- ftplistparser: replace realloc with dynbuf

  Closes #10844

- ftplistparser: use ISDIGIT()

  Closes #10844

- ftplistparser: move out private data from public struct

  The public 'curl_fileinfo' struct contained three fields that are for
  internal purposes only. This change makes them unused in the public
  struct.

  The new private struct fields are also renamed to make this separation
  more obvious internally.

  Closes #10844

- openssl: fix indents - white space edits only

  Closes #10840

- url: remove call to Curl_llist_destroy in Curl_close

  A list that is created with a NULL "destructor" does not need to be
  destroyed. Not calling it is faster than calling it.

  Closes #10846

- multi: remove PENDING + MSGSENT handles from the main linked list

  As they are not driving transfers or any socket activity, the main loop
  does not need to iterate over these handles. A performance improvement.

  They are instead only held in their own separate lists.

  'data->multi' is kept a pointer to the multi handle as long as the easy
  handle is actually part of it even when the handle is moved to the
  pending/msgsent lists. It needs to know which multi handle it belongs
  to, if for example curl_easy_cleanup() is called before the handle is
  removed from the multi handle.

  Alll 'data->multi' pointers of handles still part of the multi handle
  gets cleared by curl_multi_cleanup() which "orphans" all previously
  attached easy handles.

  This is take 2. The first version was reverted for the 8.0.1 release.

  Assisted-by: Stefan Eissing
  Closes #10801

Stefan Eissing (26 Mar 2023)

- tests/http: add timeout to running curl in test cases

  - we had a CI case once where `curl` seemingly did not
    return and it was hard to guess what happened.
  - make curl execution in test cases time out after 60 seconds

  Closes #10783

Daniel Stenberg (26 Mar 2023)

- RELEASE-PROCEDURE: update to new schedule

  Ref: https://curl.se/mail/lib-2023-03/0062.html

  Assisted-by: Andy Alt
  Assisted-by: Dan Frandrich

  Closes #10827

Patrick Monnerat (26 Mar 2023)

- doc: curl_mime_init() strong easy handle binding has been relaxed in 7.87.0

  Reported-by: Chloe Kudryavtsev
  Fixes #10834
  Closes #10835

Jay Satiro (25 Mar 2023)

- CURLOPT_WRITEFUNCTION.3: fix typo

  Reported-by: Osaila@users.noreply.github.com

  Fixes https://github.com/curl/curl/issues/10839

Dan Fandrich (24 Mar 2023)

- CI: skip some more builds when possible

  When a commit only contains tests, documentation, or cmake files, skip
  those builds that aren't affected by those.

  The file filters available on the CI services don't seem to allow
  skipping individual jobs, only the entire workflow, so we can't get any
  more fine-grained than this.

- CI: add and adjust labeler match patterns

  Allow cmdline tool alongside other labels.

Kai Pastor (25 Mar 2023)

- CMake: make config version 8 compatible with 7

  Reviewed-by: Jakub Zakrzewski
  Closes #10819

Daniel Stenberg (24 Mar 2023)

- RELEASE-NOTES: synced

  Bumped version-in-progress to 8.1.0

- GHA: add a memory-sanitizer job

  Closes #10815

Dan Fandrich (23 Mar 2023)

- CI: fix brew retries on GHA

  The fix in the previous commit was complete for Cirrus but accidentally
  left off a part for GHA.

  Follow-up to c2b7249d

- CI: skip Azure for more commits which change only GHA

Daniel Stenberg (23 Mar 2023)

- cmake: set SONAME for SunOS too

  Provided-by: Brian Lund

  Closes #10816

Stefan Eissing (23 Mar 2023)

- ngtcp2: adjust config and code checks for ngtcp2 without nghttp3

  - make configure show on HTTP3 feature that both ngtcp2 and nghttp3
    are in play
  - define ENABLE_QUIC only when USE_NGTCP2 and USE_NGHTTP3 are defined
  - add USE_NGHTTP3 in the ngtcp2 implementation

  Fixes #10793
  Closes #10821

Daniel Stenberg (23 Mar 2023)

- data.d: emphasize no conversion

  When asking curl to send a POST, curl does not encode or change the data.

  Ref: #10820
  Closes #10823

- server/getpart: clear the buffer before load

  Fixes msan warnings:

  ==54195==WARNING: MemorySanitizer: use-of-uninitialized-value
      #0 0x55ece35e57cb in line_length /home/runner/work/curl/curl/tests/server
  /getpart.c:111:25
      #1 0x55ece35e3b83 in readline /home/runner/work/curl/curl/tests/server/ge
  tpart.c:164:24
      #2 0x55ece35e0269 in getpart /home/runner/work/curl/curl/tests/server/get
  part.c:347:18
      #3 0x55ece36180b6 in parse_servercmd /home/runner/work/curl/curl/tests/se
  rver/sws.c:283:13

  Closes #10822

- ntlm: clear lm and nt response buffers before use

  To avoid the risk of MemorySanitizer: use-of-uninitialized-value

  Closes #10814

- digest: clear target buffer

  Closes #10814

Douglas R. Reno (22 Mar 2023)

- cmake: bring in the network library on Haiku.

  When cross-compiling for Haiku, the networking library needs to be
  brought in. Without this, an unknown type of "Error" is reported in
  lib/curl_setup_once.h.

  This is also needed when using CMake natively on Haiku to build libcurl.

  Fixes #10296
  Closes #10792

Daniel Stenberg (22 Mar 2023)

- runtests: die if curl version can be found

  Closes #10813

Stefan Eissing (22 Mar 2023)

- multi: add handle asserts in DEBUG builds

  For GOOD_EASY_HANDLE and GOOD_MULTI_HANDLE checks

  - allow NULL pointers to "just" return an error as before
  - fail hard on nun-NULL pointers that no longer show the MAGICs

  Closes #10812

Jon Rumsey (22 Mar 2023)

- gskit: various compile errors in OS400

  Various compile failures in gskit.c;

  - pipe_ssloverssl() needs Curl_easy data parameter for
    Curl_conn_cf_get_socket(cf, data)
  - key_passwd is in ssl_config, not conn_config
  - close_on() has 2 parameters, not 4
  - getsockopt() needs to call Curl_conn_cf_get_socket(), not
    cxn->sock[FIRSTSOCKET]

  Fixes #10799
  Closes #10800

Daniel Stenberg (22 Mar 2023)

- tool_operate: pass a long as CURLOPT_HEADEROPT argument

  Closes #10798

- GHA: run all linux test jobs with valgrind

  Closes #10798

- GHA-linux: add an address-sanitizer build

  Closes #10810

Version 8.0.1 (20 Mar 2023)

Daniel Stenberg (20 Mar 2023)

- RELEASE-NOTES: synced

  curl 8.0.1

- Revert "multi: remove PENDING + MSGSENT handles from the main linked list"

  This reverts commit f6d6f3ce01e377932f1ce7c24ee34d45a36950b8.

  The commits caused issues in the 8.0.0 release. Needs a retake.

  Reported-by: Kamil Dudka
  Closes #10795

- include/curl/curlver.h: bump to 8.0.1

Version 8.0.0 (20 Mar 2023)

Daniel Stenberg (20 Mar 2023)

- RELEASE-NOTES: synced

  The curl 8.0.0 release

- THANKS: from the 8.0.0 release

- scripts/delta: fix "ambiguous argument" when used in branches

- SECURITY-PROCESS.md: Busy-loops are not security problems

  Closes #10790

Stefan Eissing (17 Mar 2023)

- tests/http: do not save files for downloads in scorecard testing

  Closes #10788

Daniel Stenberg (17 Mar 2023)

- cf-socket: use port 80 when resolving name for local bind

  It turns out c-ares returns an error when asked to resolve a host name with
  ares_getaddrinfo using port number 0.

  Reported as a c-ares bug here: https://github.com/c-ares/c-ares/issues/517

  The work-around is to simply use port 80 instead, as the number typically doe
  s
  not make a difference and a non-zero number works for c-ares.

  Fixes #10759
  Reported-by: Matt Jolly
  Closes #10789

- curl.h: require gcc 12.1 for the deprecation magic

  Reported-by: kchow-FTNT on github
  Fixes #10726
  Closes #10784

- Revert "rtsp: use dynbuf instead of custom reallocs"

  This reverts commit 1b9ea3239d22147e00d8 because of OSS-fuzz reports.
  I'll do another take after the pending release.

  Closes #10785

- test422: verify --next used without a prior URL

  Closes #10782

- tool_getparam: error if --next is used without a prior URL

  Reported-by: 積丹尼 Dan Jacobson
  Ref: https://github.com/curl/curl/pull/10769#discussion_r1137895629

  Closes #10782

- libssh: use dynbuf instead of realloc

  When building lines to show for SFTP directory listings.

  Closes #10778

- lib2305: deal with CURLE_AGAIN

  The test does a slightly ugly busy-loop for this case but should be
  managable due to it likely being a very short moment.

  Mention CURLE_AGAIN in curl_ws_recv.3

  Fixes #10760
  Reported-by: Jay Satiro
  Closes #10781

- rtsp: use dynbuf instead of custom reallocs

  For the RTP buffering.

  Closes #10776

- libssh2: remove unused variable from libssh2's struct

  Closes #10777

- RELEASE-NOTES: synced

- multi: remove PENDING + MSGSENT handles from the main linked list

  As they are not driving transfers or any socket activity, the main loop
  does not need to iterate over these handles. A performance improvement.

  They are instead only held in their own separate lists.

  Assisted-by: Stefan Eissing
  Ref: #10743
  Closes #10762

- multi: turn link/unlinking easy handles into dedicated functions

- http_aws_sigv4: fix scan-build "value stored to 'ret' is never read"

  Follow-up to 495d09810aa9a

  Closes #10766

- lib: skip Curl_llist_destroy calls

  Linked lists themselves do not carry any allocations, so for the lists
  that do not have have a set destructor we can just skip the
  Curl_llist_destroy() call and save CPU time.

  Closes #10764

- lib643: LIB644 is never defined, this is dead code

  Closes #10765

- libtest/Makefile.inc: remove superfluous variables

  Rely on the defaults when possible.

  Closes #10765

- tests/http: remove year ranges from copyrights

  Closes #10763

Casey Bodley (14 Mar 2023)

- aws_sigv4: fall back to UNSIGNED-PAYLOAD for sign_as_s3

  all s3 requests default to UNSIGNED-PAYLOAD and add the required
  x-amz-content-sha256 header. this allows CURLAUTH_AWS_SIGV4 to correctly
  sign s3 requests to amazon with no additional configuration

  Signed-off-by: Casey Bodley <cbodley@redhat.com>

  Closes #9995

Viktor Szakats (14 Mar 2023)

- wolfssl: add quic/ngtcp2 detection in cmake, and fix builds

  - add QUIC/ngtcp2 detection in CMake with wolfSSL.

    Because wolfSSL uses zlib if available, move compression detection
    before TLS detection. (OpenSSL might also need this in the future.)

  - wolfSSL 5.5.0 started using C99 types in its `quic.h` header, but it
    doesn't #include the necessary C99 header itself, breaking builds
    (unless another dependency pulled it by chance.) Add local workaround
    for it. For this to work with all build tools, we had to fix our
    header detection first. Ref: #10745

    Ref: https://github.com/curl/curl-for-win/commit/6ad5f6ecc15620c15625fc4434
  76b3a1ecef4f3f

  Closes #10739

Stefan Eissing (14 Mar 2023)

- secure-transport: fix recv return code handling

  Return code handling of recv calls were not always correct when an error
  occured or the connection was closed.

  Closes #10717

- http2: Use KEEP_SEND_HOLD for flow control in HTTP/2

  - use the defined, but so far not used, KEEP_SEND_HOLD bit for flow
    control based suspend of sending in transfers.

  Prior to this change KEEP_SEND_PAUSE bit was used instead, but that can
  interfere with pausing streams from the user side via curl_easy_pause.

  Fixes https://github.com/curl/curl/issues/10751
  Closes https://github.com/curl/curl/pull/10753

Dan Fandrich (13 Mar 2023)

- tests: fix control code that hid some text in runtests.1

- tests: sync option lists in runtests.pl & its man page

Daniel Stenberg (13 Mar 2023)

- multi: make multi_perform ignore/unignore signals less often

  For improved performance

  Reported-by: Jerome St-Louis
  Ref: #10743
  Closes #10750

Viktor Szakats (13 Mar 2023)

- cmake: delete unused HAVE__STRTOI64

  Also delete obsolete surrounding comments.

  Reviewed-by: Daniel Stenberg
  Closes #10756

- CI: fix copyright header

  Follow-up to 395b9175b7422d699fa93643973295c106cdf147

Daniel Stenberg (13 Mar 2023)

- RELEASE-PROCEDURE.md: update coming release dates

Stefan Eissing (13 Mar 2023)

- tests/http: add pytest to GHA and improve tests

  - added to: ngtcp2-quictls, ngtcp2-gnutls and the linux varians
    quiche, bearssl, libressl, mbedtls, openssl3, rustls
  - added disabled in ngtcp2-wolfssl due to weird SSL_connect() errors
    not reproducable locally

  Improvements on pytest:

  -  handling of systems with nghttpx in $PATH
     - configure will seach $PATH got nghttpx used in pytest
     - pytest fixes for managing nghttpx without h3 support
     - ngtcp2-wolfssl: use a fully enabled wolfssl build

  - lower parallel count for http/1.1 tests, since we do not
     want to test excessive connections.
  - check built curl for HTTPS-proxy support in proxy tests
  - bearssl does not like one of our critical cert extensions, making
    it non-critical now
  - bearssl is too slow for test_12, skipping
  - making sure we do h3 tests only when curl and server support is there

  Closes #10699

Marcel Raad (13 Mar 2023)

- tool_operate: silence unused parameter warning

  `global` is only used in the `my_setopt` macro version without
  `CURL_DISABLE_LIBCURL_OPTION` since commit 4774decf10a.

  Closes https://github.com/curl/curl/pull/10752

Viktor Szakats (13 Mar 2023)

- build: fix stdint/inttypes detection with non-autotools

  Fix `stdint.h` and `inttypes.h` detection with non-autotools builds on
  Windows. (autotools already auto-detected them accurately.)

  `lib/config-win32.h` builds (e.g. `Makefile.mk`):
  - set `HAVE_STDINT_H` where supported.
  - set `HAVE_INTTYPES_H` for MinGW.

  CMake:
  - auto-detect them on Windows. (They were both force-disabled.)
  - delete unused `CURL_PULL_STDINT_H`.
  - delete unused `CURL_PULL_INTTYPES_H`.
  - stop detecting `HAVE_STDINT_H` twice.
    Present since the initial CMake commit: 4c5307b45655ba75ab066564afdc0c111a8
  b9291

  curl doesn't use these C99 headers, we need them now to workaround
  broken wolfSSL builds. Ref: #10739

  Once that clears up, we can delete these detections and macros (unless
  we want to keep them for future us.)

  Reviewed-by: Daniel Stenberg
  Closes #10745

Daniel Stenberg (13 Mar 2023)

- RELEASE-NOTES: synced

- ftp: add more conditions for connection reuse

  Reported-by: Harry Sintonen
  Closes #10730

Dan Fandrich (12 Mar 2023)

- tests: make first.c the same for both lib tests and unit tests

  The only difference used to be global variable used in unittest tests.
  After cb7ed5a removed individual flag overrides for the unittests, first.c
  was no longer recompiled for unit tests to include the flag, so whether it
  worked or gave a link error depended on whether it was compiled in
  libtest or unittest first. This way also speeds up the build by
  eliminating 40 identical compile invocations.

  Fixes #10749

- tests: use AM_CPPFILES to modify flags in unit tests

  Using CPPFLAGS sometimes caused odd compile issues when building tests
  with parallel make and AM_CPPFILES is the right flag, anyway.

  Follow-up to cb7ed5a

  Ref #10749

Viktor Szakats (13 Mar 2023)

- Makefile.mk: fix -g option in debug mode [ci skip]

  Add it to `CFLAGS` (was: `LDFLAGS`).

  Closes #10747

Jay Satiro (12 Mar 2023)

- tool: improve --stderr handling

  - freopen stderr with the user-specified file (--stderr file) instead of
    using a separate 'errors' stream.

  - In tool_setup.h override stdio.h's stderr macro as global variable
    tool_stderr.

  Both freopen and overriding the stderr macro are necessary because if
  the user-specified filename is "-" then stdout is assigned to
  tool_stderr and no freopen takes place. See the PR for more information.

  Ref: https://github.com/curl/curl/issues/10491

  Closes https://github.com/curl/curl/pull/10673

Dan Fandrich (11 Mar 2023)

- CI: don't run CI jobs if only another CI was changed

  Also skip builds on non-Windows platforms when only Windows build files
  have changed.

  This should reduce the number of useless builds and the associated
  waiting time and chance of spurious failures, freeing resources for
  new PRs.

  Closes #10742

- http: don't send 100-continue for short PUT requests

  This is already how curl is documented to behave in Everything curl, but
  in actuality only short POSTs skip this. This should knock 30 seconds
  off a full run of the test suite since the 100-continue timeout will no
  longer be hit.

  Closes #10740

- tests: add DELAY keyword to more tests using waits

- tests: hack to build most unit tests under cmake

  These are only built when a libcurl static library is available, since
  we're not building a special libcurlu library yet and these tests rely
  on private symbols that aren't available in the shared library. A few
  unit tests do require libcurlu, so those are not built.

  Closes #10722

- tests: fix MSVC unreachable code warnings in unit tests

  Switch unit1654 to use the proper test macros as well.

- tests: make CPPFLAGS common to all unit tests

  There's no need to specify them individually.

- tests: keep cmake unit tests names in sync

  Put only the test names into Makefile.inc so they can be used by both
  cmake and automake. This will prevent the list of tests from becoming
  out of date when they are also built under cmake.

Viktor Szakats (11 Mar 2023)

- src: silence wmain() warning for all build methods

  llvm/clang and gcc doesn't recognize the wmain() function in Unicode
  Windows builds:

  llvm/clang:
  ```
  ../../src/tool_main.c:239:5: warning: no previous prototype for function 'wma
  in' [-Wmissing-prototypes]
  int wmain(int argc, wchar_t *argv[])
      ^
  1 warning generated.
  ```

  gcc:
  ```
  ../../src/tool_main.c:239:5: warning: no previous prototype for 'wmain' [-Wmi
  ssing-prototypes]
    239 | int wmain(int argc, wchar_t *argv[])
        |     ^~~~~
  ```

  Before this patch, we already silenced it with CMake. This patch moves
  the silencing to the source, so that it applies to all build tools.

  Bug: https://github.com/curl/curl/issues/7229#issuecomment-1464806651

  Reviewed-by: Marcel Raad
  Closes #10744

Dan Fandrich (10 Mar 2023)

- CI: fix retrying on brew failures

  The previous attempt didn't consider that the shell would exit
  immediately after the false statement in the retry case.

  Follow-up to dc141a37

Stefan Eissing (10 Mar 2023)

- http2: fix error handling during parallel operations

  RST and connection close were not handled correctly during parallel
  transfers, leading to aborted response bodies being reported complete.

  Closes #10715

Daniel Stenberg (10 Mar 2023)

- url: only reuse connections with same GSS delegation

  Reported-by: Harry Sintonen
  Closes #10731

Viktor Szakats (10 Mar 2023)

- lib: silence clang/gcc -Wvla warnings in brotli headers

  brotli v1.0.0 throughout current latest v1.0.9 and latest master [1]
  trigger this warning.

  It happened with CMake and GNU Make. autotools builds avoid it with
  the `convert -I options to -isystem` macro.

  llvm/clang:
  ```
  In file included from ./curl/lib/content_encoding.c:36:
  ./brotli/x64-ucrt/usr/include/brotli/decode.h:204:34: warning: variable lengt
  h array used [-Wvla]
      const uint8_t encoded_buffer[BROTLI_ARRAY_PARAM(encoded_size)],
                                   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  ./brotli/x64-ucrt/usr/include/brotli/port.h:253:34: note: expanded from macro
   'BROTLI_ARRAY_PARAM'
                                   ^~~~~~
  In file included from ./curl/lib/content_encoding.c:36:
  ./brotli/x64-ucrt/usr/include/brotli/decode.h:206:48: warning: variable lengt
  h array used [-Wvla]
      uint8_t decoded_buffer[BROTLI_ARRAY_PARAM(*decoded_size)]);
                             ~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~
  ./brotli/x64-ucrt/usr/include/brotli/port.h:253:35: note: expanded from macro
   'BROTLI_ARRAY_PARAM'
                                   ~^~~~~
  ```

  gcc:
  ```
  In file included from ./curl/lib/content_encoding.c:36:
  ./brotli/x64-ucrt/usr/include/brotli/decode.h:204:5: warning: ISO C90 forbids
   variable length array 'encoded_buffer' [-Wvla]
    204 |     const uint8_t encoded_buffer[BROTLI_ARRAY_PARAM(encoded_size)],
        |     ^~~~~
  ./brotli/x64-ucrt/usr/include/brotli/decode.h:206:5: warning: ISO C90 forbids
   variable length array 'decoded_buffer' [-Wvla]
    206 |     uint8_t decoded_buffer[BROTLI_ARRAY_PARAM(*decoded_size)]);
        |     ^~~~~~~
  ```

  [1] https://github.com/google/brotli/commit/ed1995b6bda19244070ab5d331111f16f
  67c8054

  Reviewed-by: Daniel Stenberg
  Reviewed-by: Marcel Raad
  Closes #10738

Daniel Stenberg (10 Mar 2023)

- curl_path: create the new path with dynbuf

  Closes #10729

- url: remove dummy protocol handler

  Just two added checks were needed saves a whole handler struct.

  Closes #10727

Dan Fandrich (10 Mar 2023)

- CI: retry a failed brew update too, not just brew install

  Also, make sure an eventual failure ends up returning a failure code so
  the job stops.

Daniel Stenberg (10 Mar 2023)

- url: fix the SSH connection reuse check

  Reported-by: Harry Sintonen
  Closes #10735

- CURLOPT_PROXY.3: curl+NSS does not handle HTTPS over unix domain socket

  It results in error "NSS error -5985 (PR_ADDRESS_NOT_SUPPORTED_ERROR)"

  Disabled test 1470 for NSS builds and documented the restriction.

  Reported-by: Dan Fandrich
  Fixes #10723
  Closes #10734

- CURLSHOPT_SHARE.3: HSTS sharing is not thread-safe

  Reported-by: Hiroki Kurosawa
  Closes #10732

- telnet: only accept option arguments in ascii

  To avoid embedded telnet negotiation commands etc.

  Reported-by: Harry Sintonen
  Closes #10728

- test1903: test use of COOKIEFILE - reset - COOKIEFILE

  This also tests for the memory leak bug fixed by parent commit b559ef6f.

  Ref: #10694

  Closes https://github.com/curl/curl/pull/10712

Jay Satiro (10 Mar 2023)

- url: fix cookielist memleak when curl_easy_reset

  - Free set.cookelist in Curl_freeset instead of Curl_close.

  Prior to this change the cookielist linked list wasn't freed by
  curl_easy_reset which calls Curl_freeset to free all set.

  Bug: https://github.com/curl/curl/issues/10694#issuecomment-1458619157
  Reported-by: Sergey Ryabinin

  Closes https://github.com/curl/curl/pull/10709

Dan Fandrich (10 Mar 2023)

- tests: fix some keywords and unused sections

- tests: fix test1301 to call the right binary

  It was refactored in commit 480ac6e5 but this step was missed.

- tests: add timeout, SLOWDOWN and DELAY keywords to tests

  These are tests that are testing timing and end up being quite slow.

Daniel Stenberg (10 Mar 2023)

- RELEASE-NOTES: synced

Stefan Eissing (10 Mar 2023)

- wolfSSL: ressurect the BIO `io_result`

  In pytest'ing the situation occored that wolfSSL reported an
  IO error when the underlying BIO operation was returning an
  CURLE_AGAIN condition.

  Readding the `io_result` filter context member to detect such
  situations.

  Also, making sure that the returned CURLcode is initialized
  on all recv operations outcome.

  Closes #10716

- gssapi: align global `gss_OID_desc` vars to silence ld warnings on macOS vent
  ura

  Refs #9975 which first reported this.

  Closes #10718

Daniel Stenberg (10 Mar 2023)

- libssh2: only set the memory callbacks when debugging

  This makes us debug libssh2 less and libcurl more when for example
  running torture tests that otherwise will spend a lot of time in libssh2
  functions.

  We leave libssh2 to test libssh2.

  Closes #10721

- docs/SECURITY-PROCESS.md: updates

  - allow Low+Medium issues to be managed through plain PRs
  - update the bug-bounty part to reflect current reality

  Closes #10719

Dan Fandrich (9 Mar 2023)

- tests: fix tag markup issues in some tests

Marcel Raad (9 Mar 2023)

- tests: add `cookies` features

  These tests don't work with `--disable-cookies`.

  Closes https://github.com/curl/curl/pull/10713

- test420: add cookies keyword

  It fails with `--disable-cookies`.

  Closes https://github.com/curl/curl/pull/10713

Dan Fandrich (8 Mar 2023)

- CI: Add more labeler match patterns

  Also, add the  CI, tests or libcurl API tags in conjunction with any
  others that might also apply.

Andy Alt (9 Mar 2023)

- GHA: minor improvements to spellcheck

  Closes #10640

Daniel Stenberg (9 Mar 2023)

- test1671: fix after fix

- test421: -w %{header_json} test with multiple same header names

  To reproduce the issue in #10704

- tool_writeout_json. fix the output for duplicate header names

  Header entries with index != 0 are handled at the index 0 level so they
  should then be skipped when iterated over.

  Reported-by: Boris Okunskiy
  Fixes #10704
  Closes #10707

- headers: make curl_easy_header and nextheader return different buffers

  By letting curl_easy_header() and curl_easy_nextheader() store the
  header data in their own struct storage when they return a pointer to
  it, it makes it possible for applications to use them both in a loop.
  Like the curl tool does.

  Reported-by: Boris Okunskiy
  Fixes #10704
  Closes #10707

rcombs (8 Mar 2023)

- urlapi: take const args in _dup and _get functions

  Closes #10708

- urlapi: avoid mutating internals in getter routine

  This was not intended.

  Closes #10708

Daniel Stenberg (8 Mar 2023)

- urlapi: '%' is illegal in host names

  Update test 1560 to verify

  Ref: #10708
  Closes #10711

- ftp: make the 'ftpauth' a more normal 'char *'-array

  Closes #10703

Evgeny Grin (Karlson2k) (8 Mar 2023)

- doc: fix compiler warning in libcurl.m4

  Current test for curl_free() may produce warnings with strict compiler
  flags or even with default compiler flags with upcoming versions.
  These warning could turned into errors by -Werror or similar flags.
  Such warnings/errors are avoided by this patch.

  Closes #10710

Viktor Szakats (8 Mar 2023)

- misc: fix typos

  Closes #10706

Stefan Eissing (7 Mar 2023)

- ftp: active mode with SSL, add the damn filter

  - since 7.87.0 we lost adding the SSL filter for an active
    FTP connection that uses SSL. This leads to hangers and timeouts
    as reported in #10666.

  Reported-by: SandakovMM on github
  Fixes #10666
  Closes #10669

Daniel Stenberg (7 Mar 2023)

- docs: extend the URL API descriptions

  Closes #10701

Stefan Eissing (7 Mar 2023)

- url: fix logic in connection reuse to deny reuse on "unclean" connections

  - add parameter to `conn_is_alive()` cfilter method that returns
    if there is input data waiting on the connection
  - refrain from re-using connnection from the cache that have
    input pending
  - adapt http/2 and http/3 alive checks to digest pending input
    to check the connection state
  - remove check_cxn method from openssl as that was just doing
    what the socket filter now does.
  - add tests for connection reuse with special server configs

  Closes #10690

Daniel Stenberg (6 Mar 2023)

- x509asn1: use plain %x, not %lx, when the arg is an int

  Pointed out by Coverity.

  Closes #10689

Stefan Eissing (6 Mar 2023)

- http2: fix handling of RST and GOAWAY to recognize partial transfers

  - a reset transfer (HTTP/2 RST) did not always lead to the proper
    error message on receiving its response, leading to wrong reports
    of a successful transfer
  - test_05_02 was able to trigger this condition with increased transfer
    count. The simulated response errors did not carry a 'Content-Length'
    so only proper RST handling could detect the abort
  - When doing such transfers in parallel, a connection could enter the
    state where
    a) it had been closed (GOAWAY received)
    b) the RST had not been "seen" for the transfer yet
    or c) the GOAWAY announced an error and the last successful
    stream id was not checked against ongoing transfers

  Closes #10693

- tests: use dynamic ports numbers in pytest suite

  - necessary ports are bound at start of test suite and then
    given to server fixtures for use.
  - this make parallel use of pytest (in separate directories),
    practically safe for use as OS tend to not reuse such port numbers
    for a while

  Closes #10692

- connect: fix time_connect and time_appconnect timer statistics

  - time_connect was not updated when the overall connection failed,
    e.g. when SSL verification was unsuccessful, refs #10670
  - rework gather those values to interrogate involved filters,
    also from all eyeballing attempts, to report the maximum of
    those values.
  - added 3 test cases in test_06 to check reported values on
    successful, partially failed and totally failed connections.

  Reported-by: Master Inspire
  Fixes #10670
  Closes #10671

Daniel Stenberg (6 Mar 2023)

- test1905: update output cookie order

  After the #10685 update

- test420: verify expiring cookies

  Cookies that are loaded fine from a jar but then are expired in headers.

- cookie: don't load cookies again when flushing

  Reported-by: Sergio Mijatovic
  Fixes #10677
  Closes #10685

- RELEASE-NOTES: synced

Andy Alt (6 Mar 2023)

- docs: note '--data-urlencode' option

  Closes #10687

Daniel Stenberg (6 Mar 2023)

- DEPRECATE: the original legacy mingw version 1

  Remove completely in September 2023

  Closes #10667

Harry Sintonen (6 Mar 2023)

- rand: use arc4random as fallback when available

  Normally curl uses cryptographically strong random provided by the
  selected SSL backend. If compiled without SSL support, a naive built-in
  function was used instead.

  Generally this was okay, but it will result in some downsides for non-
  SSL builds, such as predictable temporary file names.

  This change ensures that arc4random will be used instead, if available.

  Closes #10672

Grisha Levit (6 Mar 2023)

- tool: dump headers even if file is write-only

  The fixes in #10079 brought a (seemingly unrelated) change of open mode
  from `wb`/`ab` to `wb+`/`ab+` for the headerfile. This makes it no
  longer possible to write the header file to e.g. a pipe, like:

      curl -D >(grep ...) file:///dev/null

  Which presently results in `Warning: Failed to open /dev/fd/63`

  See #10079
  Closes #10675

Jay Satiro (6 Mar 2023)

- tests: fix gnutls-serv check

  - If gnutls-serv doesn't exist then don't try to execute it.

  Follow-up to 2fdc1d81.

  Closes https://github.com/curl/curl/pull/10688

Daniel Stenberg (6 Mar 2023)

- lib1560: fix enumerated type mixed with another type

  Follow-up to c84c0f9aa3bb006

  Closes #10684

Viktor Szakats (5 Mar 2023)

- cmake: fix enabling LDAPS on Windows

  Before this patch, enabling LDAPS required a manual C flag:
  https://github.com/curl/curl-for-win/blob/c1cfc31cfc04f24f7a4f946564d6f0e1b4d
  7dd36/curl-cmake.sh#L105

  Fix this and enable LDAPS automatically when using `wldap32` (and
  when not explicitly disabled). This matches autotools and `Makefile.mk`
  behavior. Also remove issue from KNOWN_BUGS.

  Add workaround for MSVS 2010 warning triggered by LDAPS now enabled
  in more CI tests:
  `ldap.c(360): warning C4306: 'type cast' : conversion from 'int' to 'void *' 
  of greater size`
  Ref: https://ci.appveyor.com/project/curlorg/curl/builds/46408284/job/v8mwl9y
  fbmoeqwlr#L312

  Reported-by: JackBoosY on github
  Reviewed-by: Jay Satiro
  Reviewed-by: Marcel Raad
  Fixes #6284
  Closes #10674

- Makefile.mk: delete redundant `HAVE_LDAP_SSL` macro [ci skip]

  Since abebb2b8939c6b3e0f951eb2d9ec3729b569aa2c, we set this macro for
  all Windows `wldap32` builds using `Makefile.mk`.

  For OpenLDAP builds this macro is not enough to enable LDAPS, and
  OpenLDAP is not an option in `Makefile.mk`. For Novell LDAP it might
  have helped, but it's also not an option anymore in `Makefile.mk`.

  The future for LDAPS is that we should enable it by default without
  extra build knobs.

  Reviewed-by: Marcel Raad
  Closes #10681

- cmake: skip CA-path/bundle auto-detection in cross-builds

  Also remove issue from KNOWN_BUGS.

  Reported-by: Cristian Morales Vega
  Reviewed-by: Marcel Raad
  Fixes #6178
  Closes #10676

Daniel Stenberg (3 Mar 2023)

- schannel: loop over the algos to pick the selected one

  Avoid using the funny macro and the extra buffer copy.

  Closes #10647

- wildcard: remove files and move functions into ftplistparser.c

- ftp: allocate the wildcard struct on demand

  The feature is rarely used so this frees up data for the vast majority
  of easy handles that don't use it.

  Rename "protdata" to "ftpwc" since it is always an FTP wildcard struct
  pointer. Made the state struct field an unsigned char to save space.

  Closes #10639

- lib1560: test parsing URLs with ridiculously large fields

  In the order of 120K.

  Closes #10665

Brad Spencer (3 Mar 2023)

- urlapi: parse IPv6 literals without ENABLE_IPV6

  This makes the URL parser API stable and working the same way
  independently of libcurl supporting IPv6 transfers or not.

  Closes #10660

Jan Engelhardt (3 Mar 2023)

- build: drop the use of XC_AMEND_DISTCLEAN

  Because automake used to delete depdirs at once (.deps) and there was an issu
  e
  with portability, curl's XC_AMEND_DISTCLEAN greps the Makefiles in an attempt
  to build a list of all depfiles and delete them individually instead.

  Since commit 08849db866b44510f6b8fd49e313c91a43a3dfd3, automake switched from
  deleting directories to individual files. curl's custom logic now finds a lot
  more results with the grep (the filtering of these results isn't great), whic
  h
  causes a massive bloating of the Makefile in the order of O(n^2).

  Also remove now-unused XC_AMEND_DISTCLEAN macro group

  References: https://github.com/curl/curl/issues/9843
  References: https://debbugs.gnu.org/cgi/bugreport.cgi?bug=59288

  Reported-by: Ilmari Lauhakangas
  Fixes #9843
  Closes #10661

Balakrishnan Balasubramanian (3 Mar 2023)

- test1470: test socks proxy using unix sockets and connect to https

  Similar to test1468 except using https instead of http

  Closes #10662

Daniel Stenberg (3 Mar 2023)

- test1960: verify CURL_SOCKOPT_ALREADY_CONNECTED

  When returned from the CURLOPT_SOCKOPTFUNCTION, like when we have a
  custom socket connected in the app, passed in to libcurl.

  Verifies the fix in #10648

  Closes #10651

Stefan Eissing (2 Mar 2023)

- tests: rename tests/tests-httpd to tests/http

   - httpd is only one server we test with
   - the suite coveres the HTTP protocol in general where
     the default test cases need a more beefy environment

  Closes #10654

- socket: detect "dead" connections better, e.g. not fit for reuse

  - refs #10646 where reuse was attempted on closed connections in the
    cache, leading to an exhaustion of retries on a transfer
  - the mistake was that poll events like POLLHUP, POLLERR, etc
    were regarded as "not dead".
  - change cf-socket filter check to regard such events as inidication
    of corpsiness.
  - vtls filter checks: fixed interpretation of backend check result
    when inconclusive to interrogate status further down the filter
    chain.

  Reported-by: SendSonS on github
  Fixes #10646
  Closes #10652

- lib: give source files cf-http.* better fitting names

  Closes #10656

- http2: fix code indent

  Closes https://github.com/curl/curl/pull/10655

Shankar Jadhavar (1 Mar 2023)

- cf-socket: if socket is already connected, return CURLE_OK

  In 7.87.0, if callback method for CURLOPT_SOCKOPTFUNCTION returns
  CURL_SOCKOPT_ALREADY_CONNECTED then curl library used to return
  CURLE_OK.  n 7.88.0, now even if callback returns
  CURL_SOCKOPT_ALREADY_CONNECTED, curl library still tries to connect to
  socket by invoking method do_connect().

  This is regression caused by commit
  https://github.com/curl/curl/commit/71b7e0161032927cdfb

  Fix: Check if we are already connected and return CURLE_OK.

  Fixes #10626
  Closes #10648

Jay Satiro (1 Mar 2023)

- DYNBUF.md: note Curl_dyn_add* calls Curl_dyn_free on failure

  This is the existing behavior and it has been widely assumed in the
  codebase.

  Closes https://github.com/curl/curl/pull/10645

Stefan Eissing (1 Mar 2023)

- http2: fix upload busy loop

  - Set KEEP_SEND_PAUSE when exhausting remote HTTP/2 window size of a
    stream.

  - Clear KEEP_SEND_PAUSE when receiving HTTP/2 window updates on a paused
    stream.

  - Also fix http2 send compiler warnings reported in #10449.

  Prior to this change, starting in 71b7e016 which precedes 7.88.0,
  libcurl may eat CPU during HTTP/2 upload.

  Reported-by: Jay Satiro

  Fixes https://github.com/curl/curl/issues/10449
  Fixes https://github.com/curl/curl/issues/10618
  Closes https://github.com/curl/curl/pull/10627

Daniel Stenberg (1 Mar 2023)

- sectransp: make read_cert() use a dynbuf when loading

  Closes #10632

Jay Satiro (1 Mar 2023)

- transfer: limit Windows SO_SNDBUF updates to once a second

  - Change readwrite_upload() to call win_update_buffer_size() no more
    than once a second to update SO_SNDBUF (send buffer limit).

  Prior to this change during an upload readwrite_upload() could call
  win_update_buffer_size() anywhere from hundreds of times per second to
  an extreme test case of 100k per second (which is likely due to a bug,
  see #10618). In the latter case WPA profiler showed
  win_update_buffer_size was the highest capture count in
  readwrite_upload. In any case the calls were excessive and unnecessary.

  Ref: https://github.com/curl/curl/pull/2762

  Closes https://github.com/curl/curl/pull/10611

Daniel Stenberg (28 Feb 2023)

- RELEASE-NOTES: synced

Stefan Eissing (28 Feb 2023)

- http2: fix for http2-prior-knowledge when reusing connections

  - refs #10634 where errors in the HTTP/2 framing layer are observed.
  - the bug was that on connection reuse, the code attempted to switch
    in yet another layer of HTTP/2 handling instead of detecting that
    this was already in place.
  - added pytest testcase reproducing the issue.

  Reported-by: rwmjones on github
  Fixes #10634
  Closes #10643

- cf-socket: fix handling of remote addr for accepted tcp sockets

  - do not try to determine the remote address of a listen socket. There
    is none.
  - Update remote address of an accepted socket by getpeername() if
    available.

  Reported-by: Harry Sintonen
  Fixes #10622
  Closes #10642

- http: fix unix domain socket use in https connects

  - when h2/h3 eyeballing was involved, unix domain socket
    configurations were not honoured
  - configuring --unix-socket will disable HTTP/3 as candidate for eyeballing
  - combinatino of --unix-socket and --http3-only will fail during initialisati
  on
  - adding pytest test_11 to reproduce

  Reported-by: Jelle van der Waa
  Fixes #10633
  Closes #10641

Daniel Stenberg (28 Feb 2023)

- setopt: move the CURLOPT_CHUNK_DATA pointer to the set struct

  To make duphandle work etc

  Closes #10635

Viktor Szakats (28 Feb 2023)

- quic/schannel: fix compiler warnings

  Fixes #10603
  Closes #10616

Daniel Stenberg (28 Feb 2023)

- page-footer: add explanation for three missing exit codes

  Added in 7.73.0, 7.77.0 and 7.84.0

  Closes #10630

積丹尼 Dan Jacobson (28 Feb 2023)

- rate.c: single URLs make no sense in --rate example

  Here somehow you need to put more than one URL in these examples, else
  they will make no sense, as --rate only affects the second and beyond
  URLs. The first URL will always finish the same time no matter what
  --rate is given.

  Closes #10638

Daniel Stenberg (28 Feb 2023)

- libcurl-errors.3: add the CURLHcode errors from curl_easy_header.3

  Closes #10629

- mqtt: on send error, return error

  Reported-by: Maciej Domanski

  Closes #10623

- ws: keep the socket non-blocking

  Reported-by: marski on github
  Fixes #10615
  Closes #10625

- hostip: avoid sscanf and extra buffer copies

  Also made create_hostcache_id() return the id length.

  Closes #10601

- PARALLEL-TRANSFERS.md: not "early days" for this anymore

  Refresh the language as the support is now over three years old

  Closes #10624

- easy: remove infof() debug leftover from curl_easy_recv

  It said "reached [path]/easy.c:1231"

  Closes #10628

- idn: return error if the conversion ends up with a blank host

  Some IDN sequences are converted into "" (nothing), which can make this
  function end up with a zero length host name and we cannot consider that
  a valid host to continue with.

  Reported-by: Maciej Domanski
  Closes #10617

- examples/http3.c: use CURL_HTTP_VERSION_3

  and update the comment

  Closes #10619

- x509asn1.c: use correct format specifier for infof() call

  Detected by Coverity

  Closes #10614

- Revert "GHA: add Microsoft C++ Code Analysis"

  This reverts commit e0db842b2a082dffad4a9fbe31321e9a75c74041.

  This tool seems very restricted in how often it might be used by a
  project and thus very quickly start to report fails simply because it
  refuses to run when "there are more runs than allowed".

  Closes #10613

Patrick Monnerat (25 Feb 2023)

- tests: test secure mail protocols with explicit SSL requests

  New tests 987, 988 and 989, disabled for rustls (hanging).

  Closes #10077

- tests: support for imaps/pop3s/smtps protocols

  Closes #10077

- runtests: use a hash table for server port numbers

  Closes #10077

Andy Alt (25 Feb 2023)

- INTERNALS.md: grammar

  Closes #10607

Daniel Stenberg (25 Feb 2023)

- RELEASE-NOTES: synced

Philip Heiduck (25 Feb 2023)

- .cirrus.yml: Bump to FreeBSD 13.2

  Closes #10270

- ngtcp2-gnutls.yml: bump to gnutls 3.8.0

  Closes #10507

- CI: update ngtcp2 and nghttp2 for pytest

  Follow-up: https://github.com/curl/curl/commit/5c9ee8cef4b351a085b440f8178500
  124647f8e6

  Closes #10508

Andy Alt (25 Feb 2023)

- GHA: use same flags for Slackbuild as Slack package

  Closes #10526

Daniel Stenberg (24 Feb 2023)

- rtsp: avoid sscanf for parsing

  Closes #10605

- http_proxy: parse the status line without sscanf

  Closes #10602

- telnet: error correctly for WS set to "x[num]"

  Follow-up to e4f93be9d587
  Reported-by: Harry Sintonen
  Closes #10606

- krb5: avoid sscanf for parsing

  Closes #10599

- misc: remove support for curl_off_t < 8 bytes

  Closes #10597

- telnet: parse NEW_ENVIRON without sscanf

  Closes #10596

- telnet: parse the WS= argument without sscanf

  Closes #10596

- telnet: parse telnet options without sscanf

  Closes #10596

- ftp: replace sscanf for MDTM 213 response parsing

  Closes #10590

- ftp: replace sscanf for PASV parsing

  Closes #10590

- ftp: make the EPSV response parser not use sscanf

  Closes #10590

Stefan Eissing (24 Feb 2023)

- ngtcp2: fix unwanted close of file descriptor 0

  ... causing macOS to hand out 0 as next socket handle and failing on
  further operations.

  Reported-by: Sergey Fionov
  Fixes #10593
  Closes #10595

Daniel Stenberg (23 Feb 2023)

- select: stop treating POLLRDBAND as an error

  POLLRDBAND does not seem to be an general error and on Windows the value
  for POLLIN is 768 and the value for POLLRDBAND is 512.

  Fixes #10501
  Reported-by: opensslonzos-github on github
  Closes #10592

- test978: mark file as text mode

  Follow-up to 4ea5702980cb

  To fix test failures on Windows

  Closes #10594

- http: rewrite the status line parser without sscanf

  Closes #10585

- test978: verify that --stderr works for -w's stderr as well

Jay Satiro (23 Feb 2023)

- curl: make -w's %{stderr} use the file set with --stderr

  Reported-by: u20221022 on github
  Fixes #10491
  Closes #10569

- winbuild: fix makefile clean

  - Fix and move 'clean' code that removes the output and obj directories
    trees from MakefileBuild.vc to Makefile.vc.

  Prior to this change the 'clean' code did not work right because the
  variables containing the directory names were not fully initialized and
  the rmdir syntax was sometimes incorrect (typos). DIRDIST for example
  was set to ..\builds\ and not ..\builds\$(CONFIG_NAME_LIB)\ so it would
  remove the former and not the latter. If WITH_PREFIX was set then that
  directory was removed instead.

  Also, DIRDIST (the output directory) even if initialized should not be
  removed by MakefileBuild.vc because by that time it could be set to a
  user directory that may contain other files if WITH_PREFIX is set (eg we
  don't want rmdir /s /q C:\usr\local). Therefore we remove from
  Makefile.vc before any of that happens. I added a comment in both
  makefiles explaining this.

  Closes https://github.com/curl/curl/pull/10576

- sectransp: fix compiler warning c89 mixed code/declaration

  Since cbf57176 the Cirrus CI 'macOS arm64 SecureTransport http2' has
  been failing due to c89 warnings mixed code/declaration. That commit is
  not the cause so I assume something has changed in the CI outside of our
  configuration. Anyway, we don't mix code/declaration so this is the fix
  for that.

  Closes https://github.com/curl/curl/pull/10574

Philipp Engel (22 Feb 2023)

- BINDINGS: add Fortran binding

  Closes #10589

Stefan Eissing (22 Feb 2023)

- test2600: detect when ALARM_TIMEOUT is in use and adjust

  - use higher timeout values > 1s
  - skip duration checks

  Assisted-by: Marcel Raad
  Closes #10513

Daniel Stenberg (22 Feb 2023)

- RELEASE-NOTES: synced

- test686: verify return code for no URL after --next

- tool_operate: propagate error codes for missing URL after --next

  Fixes #10558
  Reported-by: u20221022 on github
  Closes #10580

- test1278: verify that an extra --no-remote-name cause no warning

- tool_getparam: don't add a new node for just --no-remote-name

  Unless --remote-name-all is used.

  Fixes #10564
  Reported-by: u20221022 on github
  Closes #10582

- gen.pl: add '%GLOBALS' as a variable for mainpage

  And use it in page-header to list all global command line options.

- docs/cmdline-opts: mark all global options

  gen.pl now outputs a generic explanations for them for each option

  Fixes #10566
  Reported-by: u20221022 on github
  Closes #10584

- GHA: add Microsoft C++ Code Analysis

  Closes #10583

- tool_progress: shut off progress meter for --silent in parallel

  Reported-by: finkjsc on github
  Fixes #10573
  Closes #10579

- lib1560: add a test using %25 in the userinfo in a URL

  Closes #10578

Stefan Eissing (21 Feb 2023)

- CURLOPT_PIPEWAIT: allow waited reuse also for subsequent connections

  As tested in test_02_07, when firing off 200 urls with --parallel, 199
  wait for the first connection to be established. if that is multiuse,
  urls are added up to its capacity.

  The first url over capacity opens another connection. But subsequent
  urls found the same situation and open a connection too. They should
  have waited for the second connection to actually connect and make its
  capacity known.

  This change fixes that by

  - setting `connkeep()` early in the HTTP setup handler. as otherwise
    a new connection is marked as closeit by default and not considered
    for multiuse at all
  - checking the "connected" status for a candidate always and continuing
    to PIPEWAIT if no alternative is found.

  pytest:
  - removed "skip" from test_02_07
  - added test_02_07b to check that http/1.1 continues to work as before

  Closes #10456

Daniel Stenberg (21 Feb 2023)

- test419: verify --dump-header to file that cannot be created

  Closes #10571

- tool_operate: avoid fclose(NULL) on bad header dump file

  Fixes #10570
  Reported-by: Jérémy Rabasco
  Closes #10571

- RELEASE-NOTES: synced

  Starting the journey towards 8.0.0

- cookie: parse without sscanf()

  Saves us from using 2*4096 bytes buffers on stack, the extra copies and
  more.

  Closes #10550

- lib517: verify time stamps without leading zeroes plus some more

- parsedate: replace sscanf( for time stamp parsing

  Closes #10547

- parsedate: parse strings without using sscanf()

  - sscanf is slow and complex, avoid it
  - give up already if the string is 12 bytes or longer as no valid string
    can be that long
  - this can now be done without copy

  Closes #10547

Matt Jolly (20 Feb 2023)

- tests: HTTP server fixups

  - httpserver.pl -> http-server.pl for consistency
  - add http3-server.pl to EXTRA_DIST; alphabetise for maintainability
  - nghttpx proxy invocation scripts should not use getcwd

  Closes #10568

Version 7.88.1 (20 Feb 2023)

Daniel Stenberg (20 Feb 2023)

- RELEASE-NOTES: synced

  7.88.1 release

- THANKS: add contributors from 7.88.1

- socketpair: allow EWOULDBLOCK when reading the pair check bytes

  Reported-by: Gunamoi Software
  Co-authored-by: Jay Satiro
  Fixes #10561
  Closes #10562

Jay Satiro (18 Feb 2023)

- tool_operate: fix scanbuild compiler warning

  Prior to this change Azure CI scanbuild warned of a potential NULL
  pointer string passed to strtol when CURLDEBUG enabled, even though the
  way the code was written it wouldn't have happened.

  Bug: https://github.com/curl/curl/commit/5479d991#r101159711
  Reported-by: Marcel Raad

  Closes https://github.com/curl/curl/pull/10559

- curl_setup: Suppress OpenSSL 3 deprecation warnings

  - Define OPENSSL_SUPPRESS_DEPRECATED.

  OpenSSL 3 has deprecated some of the functions libcurl uses such as
  those with DES, MD5 and ENGINE prefix. We don't have replacements for
  those functions so the warnings were disabled in autotools and cmake
  builds, but still showed in other builds.

  Closes https://github.com/curl/curl/pull/10543

- build-openssl.bat: keep OpenSSL 3 engine binaries

  Prior to this change copying the OpenSSL 3 engine binaries failed
  because 'engines-1_1' (OpenSSL 1.1.x folder name) was erroneously used
  instead of 'engines-3'. The OpenSSL 3 builds would complete successfully
  but without the engine binaries.

  Closes https://github.com/curl/curl/pull/10542

ALittleDruid (18 Feb 2023)

- cmake: fix Windows check for CryptAcquireContext

  Check for CryptAcquireContext in windows.h and wincrypt.h only, since
  otherwise this check may fail due to third party headers not found.

  Closes https://github.com/curl/curl/pull/10353

Daniel Stenberg (19 Feb 2023)

- remote-header-name.d: mention that filename* is not supported

  and that you can use --clobber to allow overwriting.

  Ref: #10533
  Closes #10555

  Co-authored-by: Jay Satiro <raysatiro@yahoo.com>

Pierrick Charron (18 Feb 2023)

- CURLOPT_WS_OPTIONS.3: fix the availability version

  Closes #10557

Jacob Hoffman-Andrews (18 Feb 2023)

- GHA: update rustls dependency to 0.9.2

  This allows re-enabling test 312 for the rustls backend.

  Closes #10553

Philip Heiduck (18 Feb 2023)

- HTTP3.md: update git branches

  Closes #10554

Stefan Eissing (17 Feb 2023)

- urldata: remove `now` from struct SingleRequest - not needed

  Closes #10549

Daniel Stenberg (17 Feb 2023)

- lib1560: add IPv6 canonicalization tests

  Closes #10552

- RELEASE-NOTES: synced

- urlapi: do the port number extraction without using sscanf()

  - sscanf() is rather complex and slow, strchr() much simpler

  - the port number function does not need to fully verify the IPv6 address
    anyway as it is done later in the hostname_check() function and doing
    it twice is unnecessary.

  Closes #10541

Stefan Eissing (17 Feb 2023)

- setopt: allow HTTP3 when HTTP2 is not defined

  Reported-by: Karthikdasari0423 on github
  Fixes #10538
  Closes #10544

Jon Rumsey (17 Feb 2023)

- os400: correct Curl_os400_sendto()

  Add const qualifier to 5th argument of Curl_os400_sendto()

  Make OS400 wrapper for sendto match the normal prototype of sendto()
  with a const qualifier.

  Fixes #10539
  Closes #10548

Stefan Eissing (17 Feb 2023)

- tests-httpd: add proxy tests

  for direct and tunneling checks on http: and https:

  Closes #10519

Daniel Stenberg (17 Feb 2023)

- curl: make --silent work stand-alone

  - renamed the struct field to 'silent' to match the cmdline option
  - make --show-error toggle independently of --silent
  - make --silent independent of ->noprogress as well

  By doing this, the three options --silent, --no-progress-meter and
  --show-error should work independently of each other and also work with
  and without '--no-' prefix as documented.

  Reported-by: u20221022 on github
  Fixes #10535
  Closes #10536

- socks: allow using DoH to resolve host names

  For SOCKS modes where a local host resolve is done.

  It was previously disabled in 12d655d4561, but a few local tests seem to
  indicate that it works fine. Works now because of the SOCKS refactor of
  4a4b63daaa01ef59 that made it non-blocking.

  Reported-by: roughtex on github
  Fixes #10537
  Closes #10540

Stefan Eissing (17 Feb 2023)

- test: add test for HTTP/2 corruption as reported in #10525

  - adding test_02_20 for reproducing the situation
  - using recently released mod_h2 Apache module
  - skipping test if an older version is installed
  - adding installation of current mod_h2 to github pytest workflow

  This reproduces the error reliable (for me) on the lib/http2.c version
  of curl 7.88.0. And passes with the recent curl master.

  Closes #10534

Daniel Stenberg (16 Feb 2023)

- tool_operate: allow debug builds to set buffersize

  Using the CURL_BUFFERSIZE environment variable.

  Closes #10532

Stefan Eissing (16 Feb 2023)

- connnect: fix timeout handling to use full duration

  - connect timeout was used at half the configured value, if the
    destination had 1 ip version 4 and other version 6 addresses
    (or the other way around)
  - extended test2600 to reproduce these cases

  Reported-by: Michael Kaufmann
  Fixes #10514
  Closes #10517

Daniel Stenberg (16 Feb 2023)

- tool_getparam: make --get a true boolean

  To match how it is documented in the man page.

  Fixes #10527
  Reported-by: u20221022 on github
  Closes #10531

Harry Sintonen (16 Feb 2023)

- http:: include stdint.h more readily

  Closes #10516

Stefan Eissing (16 Feb 2023)

- tests: make the telnet server shut down a socket gracefully

  - test 1452 failed occasionally with ECONNRESET errnos in curl when the
    server closed the connection in an unclean state.

  Closes #10509

Harry Sintonen (16 Feb 2023)

- http2: set drain on stream end

  Ensure that on_frame_recv() stream end will trigger a read if there is
  pending data. Without this it could happen that the pending data is
  never consumed.

  This combined with https://github.com/curl/curl/pull/10529 should fix
  https://github.com/curl/curl/issues/10525

  Ref: https://github.com/curl/curl/issues/10525
  Closes #10530

Stefan Eissing (16 Feb 2023)

- http2: buffer/pausedata and output flush fix.

   * do not process pending input data when copying pausedata to the
     caller
   * return CURLE_AGAIN if the output buffer could not be completely
     written out.

  Ref: #10525
  Closes #10529

Marcel Raad (16 Feb 2023)

- krb5: silence cast-align warning

  Add an intermediate cast to `void *`, as done everywhere else when
  casting from `sockaddr *` to `sockaddr_in *`.

  Closes https://github.com/curl/curl/pull/10528

Daniel Stenberg (15 Feb 2023)

- RELEASE-NOTES: synced

  bumped to 7.88.1

- tests: make sure gnuserv-tls has SRP support before using it

  Reported-by: fundawang on github
  Fixes #10522
  Closes #10524

- runtests: fix "uninitialized value $port"

  by using a more appropriate variable

  Reported-by: fundawang on github
  Fixes #10518
  Closes #10520

Version 7.88.0 (15 Feb 2023)

Daniel Stenberg (15 Feb 2023)

- RELEASE-NOTES: synced

  7.88.0 release

- THANKS: added contributors from 7.88.0

- openssl: rename 'errcode_t' to 'sslerr_t'

  Turns out "/usr/include/et/com_err.h" typedefs this type (without proper
  variable scoping).

  comerr is the "common error description library" that apparently might be use
  d
  by krb5 code, which then makes this header get used in a curl build.

  Reported-by: Bruno Henrique Batista Cruz da Silva
  Fixed #10502
  Closes #10500

Dan Fandrich (13 Feb 2023)

- CONTRIBUTE: More formally specify the commit description

  This codifies what people have actually used in git commits over the
  past 6 years. I've left off some lesser-used headers that appear to
  duplicate others and tried to describe a consistent use for several
  others that were used more arbitrarily.

  This makes it easier for new committers to find out the kinds of things
  we want to acknowledge, makes it easier to perform statistical analysis
  on commits, and opens the possibility of performing lint checks on
  descriptions before submission.

  Reviewed-by: Daniel Stenberg
  Reviewed-by: Jay Satiro

  Closes #10478

Stefan Eissing (13 Feb 2023)

- openssl: test and fix for forward proxy handling (non-tunneling).

  - adding pytest test_10 cases for proxy httpd setup tests
  - fixing openssl bug in https: proxy hostname verification that
    used the hostname of the request and not the proxy name.

  Closes #10498

Daniel Stenberg (13 Feb 2023)

- cmdline-opts/Makefile: on error, do not leave a partial

  And support 'make V=1' to show the full command line

  Closes #10497

- curl.1: make help, version and manual sections "custom"

  Instead of using "multi: boolean", as these are slightly special as in
  they do are not enable/disable ones.

  Fixes #10490
  Reported-by: u20221022 on github
  Closes #10497

Stefan Eissing (13 Feb 2023)

- tests: add tests for HTTP/2 and HTTP/3 to verify the header API

  Test 2403 and 2503 check "header_json" output and therefore use of
  header-api

  Closes #10495

Philip Heiduck (13 Feb 2023)

- CI: update wolfssl / wolfssh to 5.5.4 / 1.4.12

  Closes #10493

Daniel Stenberg (13 Feb 2023)

- KNOW_BUGS: cleanups with some changed to TODOs

  - remove "Excessive HTTP/2 packets with TCP_NODELAY"

    This is not a bug. Rather room for improvement.

  I believe these have been fixed:

  - 17.4 Connection failures with parallel HTTP/2
  - 17.5 HTTP/2 connections through HTTPS proxy frequently stall

  - remove "FTPS needs session reuse"

  That is still true, but curl should also do session reuse now.

  - remove "ASCII FTP"

  It is documented behavior, and not single user has asked for extended
  functionality here the last decade or so.

  - remove "Passive transfer tries only one IP address"

  add as a TODO

  - remove "DoH leaks memory after followlocation"

  With a recipe on how to reproduce, this is pointless to keep around

  - remove "DoH does not inherit all transfer options"

  add it as a TODO

  Closes #10487

Tatsuhiro Tsujikawa (13 Feb 2023)

- GHA: bump ngtcp2 workflow dependencies

  Closes #10494

Patrick Monnerat (13 Feb 2023)

- content_encoding: do not reset stage counter for each header

  Test 418 verifies

  Closes #10492

Daniel Stenberg (13 Feb 2023)

- RELEASE-NOTES: synced

Jay Satiro (13 Feb 2023)

- multi: stop sending empty HTTP/3 UDP datagrams on Windows

  - Limit the 0-sized send procedure that is used to reset a SOCKET's
    FD_WRITE to TCP sockets only.

  Prior to this change the reset was used on UDP sockets as well, but
  unlike TCP sockets a 0-sized send actually sends out a datagram.

  Assisted-by: Marc Hörsken

  Ref: https://github.com/curl/curl/pull/9203

  Fixes https://github.com/curl/curl/issues/9086
  Closes https://github.com/curl/curl/pull/10430

Viktor Szakats (12 Feb 2023)

- h3: silence compiler warnings

  Reviewed-by: Daniel Stenberg
  Fixes #10485
  Closes #10486

Daniel Stenberg (12 Feb 2023)

- smb: return error on upload without size

  The protocol needs to know the size ahead of time, this is now a known
  restriction and not a bug.

  Also output a clearer error if the URL path does not contain proper
  share.

  Ref: #7896
  Closes #10484

Viktor Szakats (12 Feb 2023)

- windows: always use curl's basename() implementation

  The `basename()` [1][2] implementation provided by mingw-w64 [3] makes
  assumptions about input encoding and may break with non-ASCII strings.

  `basename()` was auto-detected with CMake, autotools and since
  68fa9bf3f5d7b4fcbb57619f70cb4aabb79a51f6 (2022-10-13), also in
  `Makefile.mk` after syncing its behaviour with the mainline build
  methods. A similar patch for curl-for-win broke official Windows
  builds earlier, in release 7.83.1_4 (2022-06-15).

  This patch forces all Windows builds to use curl's internal
  `basename()` implementation to avoid such problems.

  [1]: https://pubs.opengroup.org/onlinepubs/9699919799/utilities/basename.html
  [2]: https://www.man7.org/linux/man-pages/man3/basename.3.html
  [3]: https://sourceforge.net/p/mingw-w64/mingw-w64/ci/master/tree/mingw-w64-c
  rt/misc/basename.c

  Reported-by: UnicornZhang on Github
  Assisted-by: Cherish98 on Github
  Reviewed-by: Daniel Stenberg

  Fixes #10261
  Closes #10475

Philip Heiduck (12 Feb 2023)

- Linux CI: Bump rustls-ffi to v0.9.1

  Closes #10476

Daniel Stenberg (12 Feb 2023)

- libtest: build lib2305 with multibyte as well

  Fixes a build regression.

  Follow-up to 5a9a04d5567
  Reported-by: Viktor Szakats
  Ref: https://github.com/curl/curl/pull/10475#issuecomment-1426831800

  Closes #10477

Dmitry Atamanov (12 Feb 2023)

- cmake: fix dev warning due to mismatched arg

  The package name passed to find_package_handle_standard_args (BROTLI)
  does not match the name of the calling package (Brotli). This can lead
  to problems in calling code that expects find_package result variables
  (e.g., _FOUND) to follow a certain pattern.

  Closes https://github.com/curl/curl/pull/10471

James Keast (11 Feb 2023)

- setopt: Address undefined behaviour by checking for null

  This addresses undefined behaviour found using clang's UBsan:

  curl/lib/setopt.c:177:14: runtime error: applying non-zero offset 1 to null p
  ointer
  SUMMARY: UndefinedBehaviorSanitizer: undefined-behavior curl/lib/setopt.c:177
  :14 in

  Closes #10472

Jacob Hoffman-Andrews (11 Feb 2023)

- rustls: improve error messages

  Changes numeric error codes into verbose error codes in two places.
  Adds a prefix indicating that the error came from rustls, and in some
  places which function it came from.

  Adds special handling for RUSTLS_RESULT_UNEXPECTED_EOF, since the
  default message of "Unexpected EOF" is insufficiently explanatory.

  Closes #10463

Daniel Stenberg (11 Feb 2023)

- openssl: remove dead code

  Follow-up to e8b00fcd6a

  Due to the new 'if(!nonblocking)' check on the block a level above,
  there is no need to check for it again within the same conditional.

  Detected by Coverity

  Closes #10473

- ngtcp2: replace removed define and stop using removed function

  They were removed upstream.

  Reported-by: Karthikdasari0423 on github
  Fixes #10469
  Closes #10474

- scripts/delta: show percent of number of files changed since last tag

- RELEASE-NOTES: synced

Stefan Eissing (10 Feb 2023)

- pytest: add a test case for PUSH related things.

  - checking that "103 Early Hints" are visible in curl's header dump file

  Closes #10452

Gregory Panakkal (10 Feb 2023)

- WEBSOCKET.md: typo

  Fixing missing slash for ws protocol scheme

  Closes #10464

Stefan Eissing (10 Feb 2023)

- vquic: stabilization and improvements

  vquic stabilization
  - udp send code shared between ngtcp2 and quiche
  - quiche handling of data and events improved

  ngtcp2 and pytest improvements
  - fixes handling of "drain" situations, discovered in scorecard
    tests with the Caddy server.
  - improvements in handling transfers that have already  data or
    are already closed to make an early return on recv

  pytest
  - adding caddy tests when available

  scorecard improvemnts.
  - using correct caddy port
  - allowing tests for only httpd or caddy

  Closes #10451

Philip Heiduck (10 Feb 2023)

- Linux CI: update some dependecies to latest tag

  Closes #10458

Daniel Stenberg (10 Feb 2023)

- test2305: send 3 frames, 4097 bytes each, as one message

  Receive them using a 256 bytes buffer in a loop.

- ws: fix recv of larger frames

   + remove 'oleft' from the struct
   + deal with "overflow data" in a separate dynbuf

  Reported-by: Mike Duglas
  Fixes #10438
  Closes #10447

- curl/websockets.h: extend the websocket frame struct

- sws: fix typo, indentation add more ws logging

- test2304: remove stdout verification

  This cripples the test somewhat but the check was bad since depending on
  timing it could exit before the output was done, making the test flaky.

Dan Fandrich (9 Feb 2023)

- CI: Add more labeler match patterns

- CI: Retry failed downloads to reduce spurious failures

  A temporary error with a remote server shouldn't cause a CI run to fail.
  Also, put a cap on the time to download to fail faster on a misbehaving
  server or connection and use HTTP compression where possible to reduce
  download times.

Daniel Stenberg (9 Feb 2023)

- no-clobber.d: only use long form options in man page text

  ... since they are expanded and the short-form gets mentioned
  automatically so if the short form is mentioned as well, it gets
  repeated.

  Fixes #10461
  Closes #10462
  Reported-by: Dan Fandrich

- GHA: enable websockets in the torture job

  Closes #10448

- header.d: add a header file example

  Closes #10455

Stefan Eissing (9 Feb 2023)

- HTTP/[23]: continue upload when state.drain is set

  - as reported in #10433, HTTP/2 uploads may stall when a response is
    received before the upload is done. This happens when the
    data->state.drain is set for such a transfer, as the special handling
    in transfer.c from then on only cared about downloads.
  - add continuation of uploads, if applicable, in this case.
  - add pytest case test_07_12_upload_seq_large to reproduce this scenario
    (although, current nghttp2 implementation is using drain less often)

  Reported-by: Lucas Pardue

  Fixes #10433
  Closes #10443

- http2: minor buffer and error path fixes

  - use memory buffer in full available size
  - fail receive of reset/errored streams early

  pytest:
  - make test_05 error cases more reliable

  Closes #10444

Federico Pellegrin (9 Feb 2023)

- openldap: fix missing sasl symbols at build in specific configs

  If curl is built with openldap support (USE_OPENLDAP=1) but does not
  have also some other protocol (IMAP/SMTP/POP3) enabled that brings
  in Curl_sasl_* functions, then the build will fail with undefined
  references to various symbols:

  ld: ../lib/.libs/libcurl.so: undefined reference to `Curl_sasl_decode_mech'
  ld: ../lib/.libs/libcurl.so: undefined reference to `Curl_sasl_parse_url_auth
  _option'
  ld: ../lib/.libs/libcurl.so: undefined reference to `Curl_sasl_cleanup'
  ld: ../lib/.libs/libcurl.so: undefined reference to `Curl_sasl_can_authentica
  te'
  ld: ../lib/.libs/libcurl.so: undefined reference to `Curl_sasl_continue'
  ld: ../lib/.libs/libcurl.so: undefined reference to `Curl_sasl_start'
  ld: ../lib/.libs/libcurl.so: undefined reference to `Curl_sasl_init'

  This was tracked down to these functions bein used in openldap.c but
  defined in curl_sasl.c and then forward in two vauth/ files to have
  a guard against a set of #define configurations that was now extended
  to cover also this case.

  Example configuration targeted that could reproduce the problem:

  curl 7.87.1-DEV () libcurl/7.87.1-DEV .... OpenLDAP/2.6.3
  Protocols: file ftp ftps http https ldap ldaps

  Closes #10445

Daniel Stenberg (9 Feb 2023)

- ws: use %Ou for outputting curl_off_t with info()

  Reported-by: Mike Duglas
  Fixes #10439
  Closes #10441

Jay Satiro (9 Feb 2023)

- curl_setup: Disable by default recv-before-send in Windows

  Prior to this change a workaround for Windows to recv before every send
  was enabled by default. The way it works is a recv is called before
  every send and saves the received data, in case send fails because in
  Windows apparently that can wipe out the socket's internal received
  data buffer.

  This feature has led to several bugs because the way libcurl operates
  it waits on a socket to read or to write, and may not at all times
  check for buffered receive data.

  Two recent significant bugs this workaround caused:
  - Broken Schannel TLS 1.3 connections (#9431)
  - HTTP/2 arbitrary hangs (#10253)

  The actual code remains though it is disabled by default. Though future
  changes to connection filter buffering could improve the situation IMO
  it's just not tenable to manage this workaround.

  Ref: https://github.com/curl/curl/issues/657
  Ref: https://github.com/curl/curl/pull/668
  Ref: https://github.com/curl/curl/pull/720

  Ref: https://github.com/curl/curl/issues/9431
  Ref: https://github.com/curl/curl/issues/10253

  Closes https://github.com/curl/curl/pull/10409

Stefan Eissing (8 Feb 2023)

- http2: aggregate small SETTINGS/PRIO/WIN_UPDATE frames

  add a small buffer to nghttp2 session sending in order to aggregate
  small SETTINGS/PRIO/WIN_UPDATE frames that nghttp2 "writes" to the
  callback individually.

  Ref: #10389
  Closes #10432

- openssl: store the CA after first send (ClientHello)

  move Curl_ssl_setup_x509_store() call after the first send (ClientHello)
  this gives time to parse CA anchors while waiting on the server reply

  Ref: #10389
  Closes #10432

Daniel Stenberg (8 Feb 2023)

- RELEASE-NOTES: synced

Anthony Hu (8 Feb 2023)

- wolfssl: remove deprecated post-quantum algorithms

  Closes #10440

John Bampton (8 Feb 2023)

- misc: fix spelling

  Closes #10437

Daniel Stenberg (7 Feb 2023)

- man pages: call the custom user pointer 'clientp' consistently

  The variable had a few different names. Now try to use 'clientp'
  consistently for all man pages using a custom pointer set by the
  application.

  Reported-by: Gerrit Renker

  Fixes #10434
  Closes #10435

- vtls: infof using %.*s needs to provide the length as int

  Fixes a Coverity warning.

  Closes #10436

Stefan Eissing (7 Feb 2023)

- vrls: addressing issues reported by coverity

  I believe the code was secure before this, but limiting the accepted
  name length to what is used in the structures should help Coverity's
  analysis.

  Closes #10431

Daniel Stenberg (7 Feb 2023)

- tool_operate: move the 'updated' variable

  This was already done by Dan Fandrich in the previous PR but somehow I
  lost that fixup.

  Follow-up to 349c5391f2121e

Dan Fandrich (7 Feb 2023)

- tool_operate: Fix error codes during DOS filename sanitize

  It would return CURLE_URL_MALFORMAT in an OOM condition.

  Closes #10414

- tool_operate: Fix error codes on bad URL & OOM

  curl would erroneously report CURLE_OUT_OF_MEMORY in some cases instead
  of CURLE_URL_MALFORMAT. In other cases, it would erroneously return
  CURLE_URL_MALFORMAT instead of CURLE_OUT_OF_MEMORY.  Add a test case to
  test the former condition.

  Fixes #10130
  Closes #10414

Daniel Stenberg (6 Feb 2023)

- setopt: use >, not >=, when checking if uarg is larger than uint-max

  Closes #10421

- vtls: fix failf() format argument type for %.*s handling

  Reported by Coverity

  Closes #10422

- openssl: fix "Improper use of negative value"

  By getting the socket first and returning error in case of bad socket.

  Detected by Coverity.

  Closes #10423

Dan Fandrich (6 Feb 2023)

- packages: Remove Android.mk from makefile

  This was missed in commit #44141512

  Ref: #10418

Daniel Stenberg (6 Feb 2023)

- curl_ws_send.3: clarify how to send multi-frame messages

Mike Duglas (6 Feb 2023)

- ws: fix multiframe send handling

  Fixes #10413
  Closes #10420

Daniel Stenberg (6 Feb 2023)

- unit2600: make sure numerical curl_easy_setopt sets long

  Follow-up to 671158242db3203

  Reported-by: Marcel Raad
  Fixes #10410
  Closes #10419

Andy Alt (6 Feb 2023)

- GHA: move Slackware test into matrix

  Closes #10412

Pronyushkin Petr (6 Feb 2023)

- urlapi: fix part of conditional expression is always true: qlen

  Closes #10408

- url: fix part of conditional expression is always true

  Closes #10407

Daniel Stenberg (6 Feb 2023)

- RELEASE-NOTES: synced

Philip Heiduck (6 Feb 2023)

- GHA/macos.yml: bump to gcc-12

  Closes #10415

Daniel Stenberg (6 Feb 2023)

- packages: remove Android, update README

  - Nobody builds curl for Android using this anymore
  - Refreshed the README and converted to markdown

  Reported-by: John Porter
  Fixes #10416
  Closes #10418

Kvarec Lezki (5 Feb 2023)

- fopen: remove unnecessary assignment

  [CWE-1164] V1048: The '* tempname' variable was assigned the same value.

  Ref: https://pvs-studio.com/en/docs/warnings/v1048/

  Closes https://github.com/curl/curl/pull/10398

Gisle Vanem (5 Feb 2023)

- libtest: add a sleep macro for Windows

  .. because sleep() is used in some libtests.

  Closes https://github.com/curl/curl/pull/10295

Kvarec Lezki (3 Feb 2023)

- http_aws_sigv4: remove typecasts from HMAC_SHA256 macro

  V220: Suspicious sequence of types castings: memsize -> 32-bit integer -> mem
  size.

  https://pvs-studio.com/en/docs/warnings/v220/

  Closes #10400

Daniel Stenberg (3 Feb 2023)

- mailmap: Thomas1664 on github

Thomas1664 on github (3 Feb 2023)

- CURLOPT_WRITEFUNCTION.3: fix memory leak in example

  Closes #10390

Kvarec Lezki (3 Feb 2023)

- doh: ifdef IPv6 code

  For disabled IPv6 a condition (conn->ip_version != CURL_IPRESOLVE_V4) is
  always false. https://pvs-studio.com/en/docs/warnings/v560/

  Closes #10397

Daniel Stenberg (3 Feb 2023)

- urlapi: remove pathlen assignment

  "Value stored to 'pathlen' is never read"

  Follow-up to 804d5293f89

  Reported-by: Kvarec Lezki

  Closes #10405

Kvarec Lezki (3 Feb 2023)

- http: fix "part of conditional expression is always false"

  [CWE-570] V560: A part of conditional expression is always false: conn->bits.
  authneg.
  [CWE-570] V560: A part of conditional expression is always false: conn->handl
  er->protocol & (0 | 0).

  https://pvs-studio.com/en/docs/warnings/v560/

  Closes #10399

Daniel Stenberg (2 Feb 2023)

- urlapi: skip the extra dedotdot alloc if no dot in path

  Saves an allocation for many/most URLs.

  Updates test 1395 accordingly

  Closes #10403

Stefan Eissing (2 Feb 2023)

- connections: introduce http/3 happy eyeballs

  New cfilter HTTP-CONNECT for h3/h2/http1.1 eyeballing.
  - filter is installed when `--http3` in the tool is used (or
    the equivalent CURLOPT_ done in the library)
  - starts a QUIC/HTTP/3 connect right away. Should that not
    succeed after 100ms (subject to change), a parallel attempt
    is started for HTTP/2 and HTTP/1.1 via TCP
  - both attempts are subject to IPv6/IPv4 eyeballing, same
    as happens for other connections
  - tie timeout to the ip-version HAPPY_EYEBALLS_TIMEOUT
  - use a `soft` timeout at half the value. When the soft timeout
    expires, the HTTPS-CONNECT filter checks if the QUIC filter
    has received any data from the server. If not, it will start
    the HTTP/2 attempt.

  HTTP/3(ngtcp2) improvements.
  - setting call_data in all cfilter calls similar to http/2 and vtls filters
    for use in callback where no stream data is available.
  - returning CURLE_PARTIAL_FILE for prematurely terminated transfers
  - enabling pytest test_05 for h3
  - shifting functionality to "connect" UDP sockets from ngtcp2
    implementation into the udp socket cfilter. Because unconnected
    UDP sockets are weird. For example they error when adding to a
    pollset.

  HTTP/3(quiche) improvements.
  - fixed upload bug in quiche implementation, now passes 251 and pytest
  - error codes on stream RESET
  - improved debug logs
  - handling of DRAIN during connect
  - limiting pending event queue

  HTTP/2 cfilter improvements.
  - use LOG_CF macros for dynamic logging in debug build
  - fix CURLcode on RST streams to be CURLE_PARTIAL_FILE
  - enable pytest test_05 for h2
  - fix upload pytests and improve parallel transfer performance.

  GOAWAY handling for ngtcp2/quiche
  - during connect, when the remote server refuses to accept new connections
    and closes immediately (so the local conn goes into DRAIN phase), the
    connection is torn down and a another attempt is made after a short grace
    period.
    This is the behaviour observed with nghttpx when we tell it to  shut
    down gracefully. Tested in pytest test_03_02.

  TLS improvements
  - ALPN selection for SSL/SSL-PROXY filters in one vtls set of functions, repl
  aces
    copy of logic in all tls backends.
  - standardized the infof logging of offered ALPNs
  - ALPN negotiated: have common function for all backends that sets alpn propr
  ty
    and connection related things based on the negotiated protocol (or lack the
  reof).

  - new tests/tests-httpd/scorecard.py for testing h3/h2 protocol implementatio
  n.
    Invoke:
      python3 tests/tests-httpd/scorecard.py --help
    for usage.

  Improvements on gathering connect statistics and socket access.
  - new CF_CTRL_CONN_REPORT_STATS cfilter control for having cfilters
    report connection statistics. This is triggered when the connection
    has completely connected.
  - new void Curl_pgrsTimeWas(..) method to report a timer update with
    a timestamp of when it happend. This allows for updating timers
    "later", e.g. a connect statistic after full connectivity has been
    reached.
  - in case of HTTP eyeballing, the previous changes will update
    statistics only from the filter chain that "won" the eyeballing.
  - new cfilter query CF_QUERY_SOCKET for retrieving the socket used
    by a filter chain.
    Added methods Curl_conn_cf_get_socket() and Curl_conn_get_socket()
    for convenient use of this query.
  - Change VTLS backend to query their sub-filters for the socket when
    checks during the handshake are made.

  HTTP/3 documentation on how https eyeballing works.

  TLS improvements
  - ALPN selection for SSL/SSL-PROXY filters in one vtls set of functions, repl
  aces
    copy of logic in all tls backends.
  - standardized the infof logging of offered ALPNs
  - ALPN negotiated: have common function for all backends that sets alpn propr
  ty
    and connection related things based on the negotiated protocol (or lack the
  reof).

  Scorecard with Caddy.
  - configure can be run with `--with-test-caddy=path` to specify which caddy t
  o use for testing
  - tests/tests-httpd/scorecard.py now measures download speeds with caddy

  pytest improvements
  - adding Makfile to clean gen dir
  - adding nghttpx rundir creation on start
  - checking httpd version 2.4.55 for test_05 cases where it is needed. Skippin
  g with message if too old.
  - catch exception when checking for caddy existance on system.

  Closes #10349

Daniel Stenberg (2 Feb 2023)

- CODEOWNERS: remove the peeps mentioned as CI owners

  These owners do not have the bandwidth/energy to do the reviews which
  makes PRs stall and this ownership claim flawed. We can bring people
  back when the situation is different.

  Follow-up to c04c78ac87c4d46737934345a

  Closes #10386

Martin D'Aloia (2 Feb 2023)

- write-out.d: add 'since version' to %{header_json} documentation

  The documentation of `%{header_json}` missed to mention since which
  version this variable for `--write-out` is present.

  Based on commit https://github.com/curl/curl/commit/4133a69f2daa476bb
  we can determine from the tags were this commit is present that the
  first version to include it was `7.83.0`.
  This could be also checked with:
  `git tag --contains 4133a69f2daa476bb6d902687f1dd6660ea9c3c5`

  Closes #10395

Daniel Stenberg (1 Feb 2023)

- urlapi: avoid Curl_dyn_addf() for hex outputs

  Inspired by the recent fixes to escape.c, we should avoid calling
  Curl_dyn_addf() in loops, perhaps in particular when adding something so
  simple as %HH codes - for performance reasons. This change makes the
  same thing for the URL parser's two URL-encoding loops.

  Closes #10384

- urlapi: skip path checks if path is just "/"

  As a miniscule optimization, treat a path of the length 1 as the same as
  non-existing, as it can only be a single leading slash, and that's what
  we do for no paths as well.

  Closes #10385

Philip Heiduck (1 Feb 2023)

- GHA/macos: use Xcode_14.0.1 for cmake builds

  Fixes #10356
  Closes #10381

Viktor Szakats (1 Feb 2023)

- tls: fixes for wolfssl + openssl combo builds

  1. Add `USE_WOLFSSL` to the TLS backend priority list in
     `lib/curl_ntlm_core.c`.

  2. Fix `lib/curl_ntlm_core.h` to respect TLS backend priority, bringing
     it in sync with the above list and `lib/curl_ntlm_core.c` itself.

     Reported-by: Mark Roszko
     Ref: https://github.com/curl/curl/issues/10321

  3. Allow enabling both wolfSSL and OpenSSL at the same time in
     `lib/Makefile.mk` bringing this in line with cmake/autotools builds.
     Update logic to select the crypto-specific lib for `ngtcp2`, which
     supports a single TLS backend at the same time.

  Closes #10322

Daniel Stenberg (1 Feb 2023)

- RELEASE-NOTES: synced

- docs/INSTALL: document how to use multiple TLS backends

  And document how OpenSSL forks and wolfSSL cannot be used at the same
  time.

  Reported-by: Mark Roszko
  Fixes #10321
  Closes #10382

Kvarec Lezki (1 Feb 2023)

- cookies: fp is always not NULL

  Closes #10383

Daniel Stenberg (31 Jan 2023)

- escape: use table lookup when adding %-codes to output

  On my dev host, this code runs 7.8 times faster.

  Closes #10377

- unit2600: avoid error: ‘TEST_CASES’ defined but not used

  Follow-up to d55de24dce9d51

  Closes #10379

- escape: hex decode with a lookup-table

  Makes the decoding 2.8 times faster in my tests.

  Closes #10376

- cf-socket: fix build error wo TCP_FASTOPEN_CONNECT

  Follow-up to 5651a36d1a

  Closes #10378

  Reviewed-by: Stefan Eissing

Stefan Eissing (31 Jan 2023)

- CI: add pytest github workflow to CI test/tests-httpd on a HTTP/3 setup

  Closes #10317

- connect: fix strategy testing for attempts, timeouts and happy-eyeball

  - add test2600 as a unit test that triggers various connect conditions
    and monitors behaviour, available in a debug build only.

  - this exposed edge cases in connect.c that have been fixed

  Closes #10312

- cf-socket: improvements in socket I/O handling

  - Curl_write_plain/Curl_read_plain have been eliminated. Last code use
    now uses Curl_conn_send/recv so that requests use conn->send/revc
    callbacks which defaults to cfilters use.
  - Curl_recv_plain/Curl_send_plain have been internalized in cf-socket.c.
  - USE_RECV_BEFORE_SEND_WORKAROUND (active on Windows) has been moved
    into cf-socket.c. The pre_recv buffer is held at the socket filter
    context.  `postponed_data` structures have been removed from
    `connectdata`.
  - the hanger in HTTP/2 request handling was a result of read buffering
    on all sends and the multi handling is not prepared for this. The
    following happens:

     - multi preforms on a HTTP/2 easy handle
     - h2 reads and processes data
     - this leads to a send of h2 data
     - which receives and buffers before the send
     - h2 returns
     - multi selects on the socket, but no data arrives (its in the buffer alre
  ady)
     the workaround now receives data in a loop as long as there is something i
  n
     the buffer. The real fix would be for multi to change, so that `data_pendi
  ng`
     is evaluated before deciding to wait on the socket.

  io_buffer, optional, in cf-socket.c, http/2 sets state.drain if lower
  filter have pending data.

  This io_buffer is only available/used when the
  -DUSE_RECV_BEFORE_SEND_WORKAROUND is active, e.g. on Windows
  configurations. It also maintains the original checks on protocol
  handler being HTTP and conn->send/recv not being replaced.

  The HTTP/2 (nghttp2) cfilter now sets data->state.drain when it finds
  out that the "lower" filter chain has still pending data at the end of
  its IO operation. This prevents the processing from becoming stalled.

  Closes #10280

Daniel Stenberg (31 Jan 2023)

- openssl: only use CA_BLOB if verifying peer

  Reported-by: Paul Groke
  Bug: https://curl.se/mail/lib-2023-01/0070.html
  Fixes #10351
  Closes #10359

Thomas1664 on github (31 Jan 2023)

- curl_free.3: fix return type of `curl_free`

  Fixes #10373
  Closes #10374

Daniel Stenberg (30 Jan 2023)

- zuul: stop using this CI service

  The important jobs have already transitioned. The remaining ones we can
  skip for now.

  Closes #10368

- copyright: remove "m4/ax_compile_check_sizeof.m4" from skips

  and report if skipped files do not exist.

  Follow-up to 9e11c2791fb960758 which removed the file.

  Closes #10369

- ws: unstick connect-only shutdown

  As this mode uses blocking sockets, it must set them back to
  non-blocking in disconnect to avoid the risk of getting stuck.

  Closes #10366

- ws: remove bad assert

  Reported-by: Stanley Wucw
  Fixes #10347
  Closes #10366

- openssl: adapt to boringssl's error code type

  BoringSSL uses uint32_t, OpenSSL uses 'unsigned 'long'

  Closes #10360

- tool_operate: repair --rate

  Regression from a55256cfb242 (7.87.0)
  Reported-by: highmtworks on github
  Fixes #10357
  Closes #10358

- dict: URL decode the entire path always

  Reported-by: dekerser on github
  Fixes #10298
  Closes #10354

Stefan Eissing (29 Jan 2023)

- vtls: do not null-check when we already assume cf-ctx exists

  Fixes #10361
  Closes #10362

Daniel Stenberg (29 Jan 2023)

- RELEASE-NOTES: synced

- CURLOPT_READFUNCTION.3: the callback 'size' arg is always 1

  Reported-by: Brian Green
  Fixes #10328
  Closes #10355

- copyright.pl: cease doing year verifications

  As we have (mostly) removed the copyright year ranges.

  Reported-by: Ryan Schmidt
  Fixes #10345
  Closes #10352

Dan Fandrich (28 Jan 2023)

- CI: Work around a labeler bug that removes labels

Jay Satiro (26 Jan 2023)

- write-out.d: clarify Windows % symbol escaping

  - Clarify that in Windows batch files the % must be escaped as %%, and
    at the command prompt it cannot be escaped which could lead to
    incorrect expansion.

  Prior to this change the doc implied % must be escaped as %% in win32
  always.

  ---

  Examples showing how a write-out argument is received by curl:

  If curl --write-out "%{http_code}" is executed in a batch file:
  {http_code}

  If curl --write-out "%%{http_code}" is executed in a batch file:
  %{http_code}

  If curl --write-out "%{http_code}" is executed from the command prompt:
  %{http_code}

  If curl --write-out "%%{http_code}" is executed from the command prompt:
  %%{http_code}

  At the command prompt something like "%{speed_download}%{http_code}"
  would first be parsed by the command interpreter as %{speed_download}%
  and would be expanded as environment variable {speed_download} if it
  existed, though that's highly unlikely since Windows environment names
  don't use braces.

  ---

  Reported-by: Muhammad Hussein Ammari

  Ref: https://github.com/bagder/everything-curl/pull/279

  Fixes https://github.com/curl/curl/issues/10323
  Closes https://github.com/curl/curl/pull/10337

Ryan Schmidt (26 Jan 2023)

- connect: Fix build when not ENABLE_IPV6

  Check for ENABLE_IPV6 before accessing AF_INET6. Fixes build failure
  introduced in 1c5d8ac.

  Closes https://github.com/curl/curl/pull/10344

- cf-socket: Fix build when not HAVE_GETPEERNAME

  Remove remaining references to conn and sockfd, which were removed from
  the function signature when conninfo_remote was renamed to
  conn_set_primary_ip in 6a8d7ef.

  Closes https://github.com/curl/curl/pull/10343

Stefan Eissing (26 Jan 2023)

- vtls: Manage current easy handle in nested cfilter calls

  The previous implementation cleared `data` so the outer invocation lost
  its data, which could lead to a crash.

  Bug: https://github.com/curl/curl/issues/10336
  Reported-by: Fujii Hironori

  Closes https://github.com/curl/curl/pull/10340

Dan Fandrich (25 Jan 2023)

- CI: Add even more paths to the labeler config (#10326)

- scripts: Fix Appveyor job detection in cijobs.pl

  The reorganization in #9769 broke the script. This should probably be
  rewritten to use a YAML parser for better upward compatibility.

- CI: Add a few more paths to the labeler config (#10326)

- CI: Switch the labeler event to pull_request_target

  Otherwise, the action won't work on PRs from forked repositories
  (#10326).

Viktor Szakats (25 Jan 2023)

- cmake: delete redundant macro definition `SECURITY_WIN32`

  Stop explicitly defining `SECURITY_WIN32` in CMake builds.

  No other build systems define this macro, because it's unconditionally
  defined in `lib/curl_sspi.h` already. This is the only curl source using
  the `sspi.h` and `security.h` Win32 headers, and no other Win32 headers
  need this macro.

  Reviewed-by: Jay Satiro
  Closes #10341

Fredrik (24 Jan 2023)

- winbuild: document that arm64 is supported

  Building an arm64 version works flawlessly with the VS arm64 toolset.

  Closes https://github.com/curl/curl/pull/10332

Cherish98 (24 Jan 2023)

- openssl: don't log raw record headers

  - Skip content type SSL3_RT_HEADER in verbose TLS output.

  This commit prevents bogus and misleading verbose TLS header messages as
  discussed in #10299.

  Assisted-by: Peter Wu

  Closes https://github.com/curl/curl/pull/10299

Marc Aldorasi (24 Jan 2023)

- cmake: use list APPEND syntax for CMAKE_REQUIRED_DEFINITIONS

  - Use list() instead of set() for CMAKE_REQUIRED_DEFINITIONS list since
    the former is clearer.

  Closes https://github.com/curl/curl/pull/10272

Dan Fandrich (23 Jan 2023)

- CI: Add a workflow to automatically label pull requests

  The labeler language is quite restrictive right now so labels are added
  quite conservatively, meaning that many PRs won't get labels when it's
  "obvious" they should. It will still save some manual work on those
  that it can label.

Jay Satiro (21 Jan 2023)

- system.h: assume OS400 is always built with ILEC compiler

  Prior to this change the OS400 types were only defined when __ILEC400__.
  That symbol is only defined by IBM's C compiler and not their C++
  compiler, which led to missing types when users on OS400 would compile a
  C++ application that included curl.

  The IBM C and C++ compilers are the only native compilers on the
  platform.

  Assisted-by: Jon Rumsey
  Reported-by: John Sherrill

  Fixes https://github.com/curl/curl/issues/10305
  Closes https://github.com/curl/curl/pull/10329

xgladius (20 Jan 2023)

- cmake: Remove deprecated symbols check

  curl stopped use of CMAKE_USE_ as a prefix for its own build symbols in
  2021 and added a check, meant to last 1 year, to fatally error on those
  symbols. This commit removes that check.

  Closes https://github.com/curl/curl/pull/10314

Dan Fandrich (20 Jan 2023)

- docs: POSTFIELDSIZE must be set to -1 with read function

  Reported-by: RanBarLavie on github

  Closes #10313

Stefan Eissing (20 Jan 2023)

- vtls: fix hostname handling in filters

  - Copy the hostname and dispname to ssl_connect_data.

  Use a copy instead of referencing the `connectdata` instance since this
  may get free'ed on connection reuse.

  Reported-by: Stefan Talpalaru
  Reported-by: sergio-nsk@users.noreply.github.com

  Fixes https://github.com/curl/curl/issues/10273
  Fixes https://github.com/curl/curl/issues/10309

  Closes https://github.com/curl/curl/pull/10310

Sergey Bronnikov (17 Jan 2023)

- lib: fix typos

  Closes https://github.com/curl/curl/pull/10307

- curl_version_info.3: fix typo

  Closes https://github.com/curl/curl/pull/10306

Jay Satiro (17 Jan 2023)

- openssl: Don't ignore CA paths when using Windows CA store (redux)

  .. and remove 'experimental' designation from CURLSSLOPT_NATIVE_CA.

  This commit restores the behavior of CURLSSLOPT_NATIVE_CA so that it
  does not override CURLOPT_CAINFO / CURLOPT_CAPATH, or the hardcoded
  default locations. Instead the native Windows CA store can be used at
  the same time.

  ---

  This behavior was originally added over two years ago in abbc5d60
  (#5585) but then 83393b1a (#7892) broke it over a year ago, I assume
  inadvertently.

  The CURLSSLOPT_NATIVE_CA feature was marked experimental and likely
  rarely used.

  Ref: https://github.com/curl/curl/pull/5585
  Ref: https://github.com/curl/curl/pull/7892
  Ref: https://curl.se/mail/lib-2023-01/0019.html

  Closes https://github.com/curl/curl/pull/10244

Daniel Stenberg (13 Jan 2023)

- RELEASE-NOTES: synced

- ws: fix autoping handling

  Reported-by: Alexey Savchuk
  Fixes #10289
  Closes #10294

- curl_log: avoid printf() format checking with mingw

  Since it does not seem to like %zu and more

  Follow-up to db91dbbf2

  Fixes #10291
  Closes #10292

- tool_getparam: fix compiler warning when !HAVE_WRITABLE_ARGV

  Follow-up to 2ed0e1f70ee176edf3d2

  Closes #10286

Stefan Eissing (12 Jan 2023)

- openssl: make the BIO_METHOD a local variable in the connection filter

  This avoids UAF issues when `curl_global_cleanup()` is called before all
  transfers have been completely handled. Unfortunately this seems to be a
  more common pattern than we like.

  Closes #10285

Daniel Stenberg (12 Jan 2023)

- curl: output warning at --verbose output for debug-enabled version

  + a libcurl warning in the debug output

  Assisted-by: Jay Satiro

  Ref: https://curl.se/mail/lib-2023-01/0039.html
  Closes #10278

- src: add --http3-only

  Warning: --http3 and --http3-only are subject to change again (or be
  removed) before HTTP/3 support goes non-experimental.

  Closes #10264

- curl.h: add CURL_HTTP_VERSION_3ONLY

  As the previous CURL_HTTP_VERSION_3 option gets a slightly altered meaning.

  Closes #10264

- connect: fix access of pointer before NULL check

  Detected by Coverity CID 1518992

  Closes #10284

Daniel Gustafsson (12 Jan 2023)

- easyoptions: Fix header printing in generation script

  The optiontable.pl script prints the header comment when generating
  easyoptions.c, but it wasn't escaping all characters which jumbled the
  curl ascii logo.  Fix by escaping.

  Cloes #10275

Harry Sintonen (12 Jan 2023)

- tool_getparam: fix hiding of command line secrets

  Closes #10276

Stefan Eissing (12 Jan 2023)

- tests: document the cfilter debug logging options

  Closes #10283

- curl_log: for failf/infof and debug logging implementations

   - new functions and macros for cfilter debugging
   - set CURL_DEBUG with names of cfilters where debug logging should be
     enabled
   - use GNUC __attribute__ to enable printf format checks during compile

  Closes #10271

Daniel Stenberg (10 Jan 2023)

- RELEASE-NOTES: synced

Nick Banks (10 Jan 2023)

- msh3: update to v0.6

  Closes #10192

Stefan Eissing (10 Jan 2023)

- ngtcp2: add CURLOPT_SSL_CTX_FUNCTION support for openssl+wolfssl

  Using common method for SSL_CTX initialization of verfiy peer and CA
  settings. This also provides X509_STORE sharing to become available for
  ngtcp2+openssl HTTP/3.

  Reported-by: violetlige on github

  Fixes #10222
  Closes #10239

Daniel Stenberg (10 Jan 2023)

- cf-socket: make infof() call use %zu for size_t output

  Detected by Coverity CID 1518986 and CID 1518984

  Closes #10268

Jon Rumsey (10 Jan 2023)

- os400: fixes to make-lib.sh and initscript.sh

  Adjust how exports list is generated from header files to account for
  declarations across multiple lines and CURL_DEPRECATED(...) tags.

  Update initscript.sh

  Specify qadrt_use_inline to prevent unistd.h in ASCII runtime defining
  close(a) -> close_a(a)

  Fixes #10266
  Closes #10267

Stefan Eissing (9 Jan 2023)

- tests-httpd: basic infra to run curl against an apache httpd plus nghttpx for
   h3

  - adding '--with-test-httpd=<path>' to configure non-standard apache2
    install
  - python env and base classes for running httpd
  - basic tests for connectivity with h1/h2/h3
  - adding test cases for truncated responses in http versions.
  - adding goaway test for HTTP/3.
  - adding "stuttering" tests with parallel downloads in chunks with
    varying delays between chunks.

  - adding a curltest module to the httpd server, adding GOAWAY test.
      - mod_curltest now installs 2 handlers
        - 'echo': writing as response body what came as request body
        - 'tweak': with query parameters to tweak response behaviour
  - marked known fails as skip for now

  Closes #10175

- quic: improve connect error message, debugging info, fix false connect report

  - ECONNECTREFUSED has not its own fail message in quic filters
  - Debug logging in connect eyballing improved
  - Fix bug in ngtcp2/quiche that could lead to false success reporting.

  Reported-by: Divy Le Ray

  Fixes #10245
  Closes #10248

- quiche: fix build without any HTTP/2 implementation

  Fixes #10260
  Closes #10263

Daniel Stenberg (9 Jan 2023)

- .github/workflows/linux.yml: add a quiche CI job

  Move over from zuul

  Closes #10241

- curl.h: allow up to 10M buffer size

  Bump the limit from 512K. There might be reasons for applications using
  h3 to set larger buffers and there is no strong reason for curl to have
  a very small maximum.

  Ref: https://curl.se/mail/lib-2023-01/0026.html

  Closes #10256

Tatsuhiro Tsujikawa (8 Jan 2023)

- GHA: use designated ngtcp2 and its dependencies versions

  Designate ngtcp2 and its dependency versions so that the CI build does
  not fail without our control.

  Closes #10257

Daniel Stenberg (8 Jan 2023)

- docs/cmdline-opts/hsts.d: explain hsts more

  Closes #10258

Stefan Eissing (8 Jan 2023)

- msh3: run again in its cfilter

  - test 2500, single GET works
  - test 2501, single POST stalls
  - test 2502, multiple, sequential GETs each use a new connection since
    MsH3ConnectionGetState(qconn) no longer reports CONNECTED after one
    GET.

  Closes #10204

Jay Satiro (8 Jan 2023)

- sendf: fix build for Linux TCP fastopen

  - Fix the remote addr struct dereference.

  - Include cf-socket.h in urldata.h.

  Follow-up to 6a8d7ef9 which changed conn->ipaddr (Curl_addrinfo* )
  member to conn->remote_addr (Curl_sockaddr_ex *) several days ago.

  Reported-by: Stephan Guilloux

  Fixes https://github.com/curl/curl/issues/10249
  Closes https://github.com/curl/curl/pull/10250

Daniel Stenberg (7 Jan 2023)

- RELEASE-NOTES: synced

- setopt: move the SHA256 opt within #ifdef libssh2

  Because only the libssh2 backend not supports it and thus this should
  return error if this option is used other backends.

  Reported-by: Harry Sintonen

  Closes #10255

Patrick Monnerat (7 Jan 2023)

- nss: implement data_pending method

  NSS currently uses the default Curl_none_data_pending() method which
  always returns false, causing TLS buffered input data to be missed.

  The current commit implements the nss_data_pending() method that properly
  monitors the presence of available TLS data.

  Ref:#10077

  Closes #10225

Jay Satiro (6 Jan 2023)

- CURLOPT_HEADERDATA.3: warn DLL users must set write function

  - Warn that in Windows if libcurl is running from a DLL and if
    CURLOPT_HEADERDATA is set then CURLOPT_WRITEFUNCTION or
    CURLOPT_HEADERFUNCTION must be set as well, otherwise the user may
    experience crashes.

  We already have a similar warning in CURLOPT_WRITEDATA. Basically, in
  Windows libcurl could crash writing a FILE pointer that was created by
  a different C runtime. In Windows each DLL that is part of a program may
  or may not have its own C runtime.

  Ref: https://github.com/curl/curl/issues/10231

  Closes https://github.com/curl/curl/pull/10233

Jon Rumsey (5 Jan 2023)

- x509asn1: fix compile errors and warnings

  Various small issues when built for GSKit

  Closes #10238

Patrick Monnerat (5 Jan 2023)

- runtests: fix detection of TLS backends

  Built-in TLS backends are detected at test time by scanning for their
  names in the version string line returned by the cli tool: as this line
  may also list the libssh configuration that mentions its own backend,
  the curl backend may be wrongly determined.

  In example, if the version line contains "libssh/0.10.4/openssl/zlib",
  OpenSSL is detected as a curl-configured backend even if not.

  This fix requires the backend names to appear as full words preceded by
  spacing in the version line to be recognized as curl TLS backends.

  Closes #10236

Andy Alt (5 Jan 2023)

- GHA: add job on Slackware 15.0

  Closes #10230

Daniel Stenberg (5 Jan 2023)

- test363: make even smaller writes to loop more

- http_proxy: do not assign data->req.p.http use local copy

  Avoid the tricky reusing of the data->req.p.http pointer for http proxy
  tunneling.

  Fixes #10194
  Closes #10234

Stefan Eissing (5 Jan 2023)

- quic: rename vquic implementations, fix for quiche build.

  - quiche in debug mode did not build, fixed.
  - moved all vquic implementation files to prefix curl_* to avoid
    the potential mixups between provided .h files and our own.
  - quich passes test 2500 and 2502. 2501, the POST, fail with
    the body being rejected. Quich bug?

  Closes #10242

- sectransp: fix for incomplete read/writes

  SecureTransport expects result code errSSLWouldBlock when the requested
  length could not be sent/recieved in full. The previous code returned
  noErr, which let SecureTransport to believe that the IO had terminated
  prematurely.

  Fixes #10227
  Closes #10235

Andy Alt (5 Jan 2023)

- GHA: Hacktoberfest CI: Update deprecated 'set-output' command

  Closes #10221

Jay Satiro (5 Jan 2023)

- scripts: set file mode +x on all perl and shell scripts

  - Set all scripts +x, ie 644 => 755.

  Prior to this change some scripts were not executable and therefore
  could not be called directly.

  ~~~
  git ls-files -s \*.{sh,pl,py} | grep -v 100755
  ~~~

  Closes https://github.com/curl/curl/pull/10219

Stefan Eissing (4 Jan 2023)

- tool_operate: fix headerfile writing

  Do not rely on the first transfer started to be the first to get a
  response (remember -Z). All transfers now write the headefile (-D) in
  append mode, making sure that the order of transfer responses does not
  lead to overwrites of previous data.

  Closes #10224

Daniel Stenberg (4 Jan 2023)

- misc: reduce struct and struct field sizes

  - by using BIT() instead of bool
  - imap: shrink struct
  - ftp: make state 'unsigned char'
  - ftp: sort ftp_conn struct entries on size
  - urldata: use smaller fields for SSL version info storage
  - pop3: reduce the pop3_conn struct size
  - smtp: reduce the size of the smtp structs

  Closes #10186

- noproxy: support for space-separated names is deprecated

  To be removed in July 2024.

  Assisted-by: Michael Osipov
  Fixes #10209
  Closes #10215

Andrei Rybak (4 Jan 2023)

- lib: fix typos in comments which repeat a word

  Remove erroneously duplicated words in code comments of files
  `lib.connect.c` and `lib/url.c`.

  Closes #10220

Radek Brich (3 Jan 2023)

- cmake: set SOVERSION also for macOS

  Closes #10214

Jay Satiro (3 Jan 2023)

- http2: fix compiler warning due to uninitialized variable

  Prior to this change http2_cfilter_add could return an uninitialized
  cfilter pointer in an OOM condition. In this case though, the pointer
  is discarded and not dereferenced so there was no risk of a crash.