Updated: curl, libcurl{4, -devel, -doc}, mingw64-{x86_64, i686}-curl 7.79.1

[Cygwin curl Maintainer <Brian.Inglis@SystematicSW.ab.ca>]

The following packages have been upgraded in the Cygwin distribution:

* curl			7.79.1
* libcurl4		7.79.1
* libcurl-devel		7.79.1
* libcurl-doc		7.79.1
* mingw64-x86_64-curl	7.79.1
* mingw64-i686-curl	7.79.1

Command line tool and Library supporting transferring files with
URL syntax, using FTP, FTPS, HTTP, HTTPS, SCP, SFTP, TFTP, TELNET, DICT, and
FILE, SSL certificates, HTTP POST, HTTP PUT, FTP uploading, HTTP form
based upload, proxies, cookies, user+password authentication (Basic,
Digest, NTLM, Negotiate...), file transfer resume, proxy tunneling and a
busload of other useful tricks.

For more information see the project home page:

	https://curl.se/

As there are multiple components and many changes each release please
see below or read /usr/share/doc/curl/RELEASE-NOTES after installation;
for complete details of changes since the previous Cygwin release see:

	/usr/share/doc/curl/CHANGES
or
	https://curl.se/changes.html


curl and libcurl 7.79.1

 Public curl releases:         203
 Command line options:         242
 curl_easy_setopt() options:   290
 Public functions in libcurl:  85
 Contributors:                 2489

This release includes the following known bugs:

* see docs/KNOWN_BUGS (https://curl.se/docs/knownbugs.html)

This release includes the following bugfixes:

* Curl_http2_setup: don't change connection data on repeat invokes
* curl_multi_fdset: make FD_SET() not operate on sockets out of range
* dist: provide lib/.checksrc in the tarball
* FAQ: add GOPHERS + curl works on data, not files
* hsts: CURLSTS_FAIL from hsts read callback should fail transfer
* hsts: handle unlimited expiry
* http: fix the broken >3 digit response code detection
* strerror: use sys_errlist instead of strerror on Windows
* test1184: disable
* tests/sshserver.pl: make it work with openssh-8.7p1


curl and libcurl 7.79.0 September 15 2021

This release includes the following changes:

* bearssl: support CURLOPT_CAINFO_BLOB
* http: consider cookies over localhost to be secure
* secure transport: support CURLINFO_CERTINFO

This release includes the following bugfixes:

* CVE-2021-22945: clear the leftovers pointer when sending succeeds
* CVE-2021-22946: do not ignore --ssl-reqd
* CVE-2021-22947: reject STARTTLS server response pipelining
* ares: use ares_getaddrinfo()
* asyn-ares.c: move all version number checks to the top
* auth: do not append zero-terminator to authorisation id in kerberos
* auth: properly handle byte order in kerberos security message
* auth: use sasl authzid option in kerberos
* auth: we do not support a security layer after kerberos authentication
* BINDINGS.md: update links to use https where available
* build: fix compiler warnings
* c-hyper: deal with Expect: 100-continue combined with POSTFIELDS
* c-hyper: fix header value passed to debug callback
* c-hyper: handle HTTP/1.1 => HTTP/1.0 downgrade on reused connection
* c-hyper: initial step for 100-continue support
* c-hyper: initial support for "dumping" 1xx HTTP responses
* c-hyper: remove the hyper_executor_poll() loop from Curl_http
* CI/cirrus: reduce compile time with increased parallism
* CI: use GitHub Container Registry instead of Docker Hub
* cirrus: Add FreeBSD 13.0 job and disable sanitizer build
* cmake: avoid poll() on macOS
* cmake: sync CURL_DISABLE options
* codeql: fix error "Resource not accessible by integration"
* compressed.d: it's a request, not an order
* config.d: escape the backslash properly
* config.d: note that curlrc is used even when --config
* config: get rid of the unused HAVE_SIG_ATOMIC_T et. al.
* configure.ac: revert bad nghttp2 library detection improvements
* configure: error out if both ngtcp2 and quiche are specified
* configure: make --disable-hsts work
* configure: set classic mingw minimum OS version to XP
* configure: tweak nghttp2 library name fix
* connect: get local port + ip also when reusing connections
* connect: remove superfluous conditional
* curl-openssl.m4: check lib64 for the pkg-config file
* curl-openssl.m4: show correct output for OpenSSL v3
* curl.1: mention "global" flags
* curl.1: provide examples for each option
* curl: add warning for ignored data after quoted form parameter
* curl: add warning for incompatible parameters usage
* curl: better error message when -O fails to get a good name
* curl: stop retry if Retry-After: is longer than allowed
* curl_easy_setopt.3: improve the string copy wording
* Curl_hsts_loadcb: don't attempt to load if hsts wasn't inited
* curl_setup.h: sync values for HTTP_ONLY
* curl_url_get.3: clarify about path and query
* CURLMOPT_TIMERFUNCTION.3: remove misplaced "time"
* CURLOPT_DOH_URL.3: CURLOPT_OPENSOCKETFUNCTION is not inherited
* CURLOPT_SSL_CTX_*.3: tidy up the example
* CURLOPT_UNIX_SOCKET_PATH.3: remove nginx reference, add see also
* docs/MQTT: update state of username/password support
* docs: remove experimental mentions from HSTS and MQTT
* docs: the security list is reached at security at curl.se now
* easy: use a custom implementation of wcsdup on Windows
* examples/*hiperfifo.c: fix calloc arguments to match function proto
* examples/cookie_interface: avoid printfing time_t directly
* examples/cookie_interface: fix scan-build printf warning
* examples/ephiperfifo.c: simplify signal handler
* FAQ: add two dev related questions
* getparameter: fix the --local-port number parser
* happy-eyeballs-timeout-ms.d: polish the wording
* hostip: Make Curl_ipv6works function independent of getaddrinfo
* http2: Curl_http2_setup needs to init stream data in all invokes
* http2: revert a change that broke upgrade to h2c
* http2: revert call the handle-closed function correctly on closed stream
* http: disallow >3-digit response codes
* http: ignore content-length if any transfer-encoding is used
* http_proxy: clear 'sending' when the outgoing request is sent
* http_proxy: fix the User-Agent inclusion in CONNECT
* http_proxy: fix user-agent and custom headers for CONNECT with hyper
* http_proxy: only wait for writable socket while sending request
* INTERNALS: bump c-ares requirement to 1.16.0
* INTERNALS: c-ares has a new home: c-ares.org
* lib: don't use strerror()
* libcurl-errors.3: clarify two CURLUcode errors
* limit-rate.d: clarify base unit
* mailing lists: move from cool.haxx.se to lists.haxx.se
* mbedtls: avoid using a large buffer on the stack
* mbedTLS: initial 3.0.0 support
* mbedtls_threadlock: fix unused variable warning
* mksymbolsmanpage.pl: Fix showing symbol's last used version
* mksymbolsmanpage.pl: match symbols case insenitively
* multi: fix compiler warning with `CURL_DISABLE_WAKEUP`
* ngtcp2: compile with the latest ngtcp2 and nghttp3
* ngtcp2: fix build with ngtcp2 and nghttp3
* ngtcp2: remove the acked_crypto_offset struct field init
* ngtcp2: replace deprecated functions with nghttp3_conn_shutdown_stream_read
* ngtcp2: reset the oustanding send buffer again when drained
* ngtcp2: rework the return value handling of ngtcp2_conn_writev_stream
* ngtcp2: stop buffering crypto data
* ngtcp2: utilize crypto API functions to simplify
* openssl: annotate SSL3_MT_SUPPLEMENTAL_DATA
* openssl: when creating a new context, there cannot be an old one
* opt-docs: make sure all man pages have examples
* opt-docs: verify man page sections + order
* opts docs: unify phrasing in NAME header
* output.d: add method to suppress response bodies
* page-header: add GOPHERS, simplify wording in the 1st para
* progress: fix a compile warning on some systems
* progress: make trspeed avoid floats
* runtests: add option -u to error on server unexpectedly alive
* schannel: Work around typo in classic mingw macro
* scripts: invoke interpreters through /usr/bin/env
* setopt: enable CURLOPT_IGNORE_CONTENT_LENGTH for hyper
* strerror.h: remove the #include from files not using it
* symbols-in-versions: fix CURLSSLBACKEND_QSOSSL last used version
* test1138: remove trailing space to make work with hyper
* test1173: check references to libcurl options
* test1280: CRLFify the response to please hyper
* test1565: fix windows build errors
* test365: verify response with chunked AND Content-Length headers
* tests/*server.pl: flush output before executing subprocess
* tests/*server.py: remove pidfile on server termination
* tests/runtests.pl: cleanup copy&paste mistakes and unused code
* tests/server/*.c: align handling of portfile argument and file
* tests: adjust the tftpd output to work with hyper mode
* tests: be explicit about using 'python3' instead of 'python'
* tests: enable test 1129 for hyper builds
* tests: make three tests pass until 2037
* tool/tests: fix potential year 2038 issues
* tool_operate: Fix --fail-early with parallel transfers
* url: fix compiler warning in no-verbose builds
* urlapi.c:seturl: assert URL instead of using if-check
* vtls: fix typo in schannel_verify.c
* winbuild/README.md: clarify GEN_PDB option
* wolfssl: clean up wolfcrypt error queue
* write-out.d: clarify size_download/upload
* x509asn1: fix heap over-read when parsing x509 certificates