Changes in 7.76.0 - March 31 2021

Changes:

• cookies: Support multiple -b parameters
• curl: add --fail-with-body
• doh: add options to disable ssl verification
• http: add support to read and store the referrer header
• sasl: support SCRAM-SHA-1 and SCRAM-SHA-256 via libgsasl
• vtls: initial implementation of rustls backend

Bugfixes:

• CVE-2021-22876: strip credentials from the auto-referer header field
• CVE-2021-22890: add 'isproxy' argument to Curl_ssl_get/addsessionid()
• asyn-ares: use consistent resolve error message
• BUG-BOUNTY: removed the cooperation mention
• build: delete unused feature guards
• build: fix --disable-dateparse
• build: fix --disable-http-auth
• build: remove all traces of USE_BLOCKING_SOCKETS
• c-hyper: Remove superfluous pointer check
• c-hyper: support automatic content-encoding
• CI/azure: disable test 433 on azure-ubuntu
• CI/azure: replace python-impacket with python3-impacket
• ci: stop building on freebsd-12-1
• cmake: fix import library name for non-MS compiler on Windows
• cmake: use CMAKE_INSTALL_INCLUDEDIR indirection
• cmake: support WinIDN
• config: fix building SMB with configure using Win32 Crypto
• config: fix detection of restricted Windows App environment
• configure: fail if --with-quiche is used and quiche isn't found
• configure: make AC_TRY_* into AC_*_IFELSE
• configure: make hyper opt-in, and fail if missing
• configure: only add OpenSSL paths if they are defined
• configure: provide Largefile feature for curl-config
• configure: remove use of deprecated macros
• configure: s/AC_HELP_STRING/AS_HELP_STRING
• cookies: Fix potential NULL pointer deref with PSL
• curl: set CURLOPT_NEW_FILE_PERMS if requested
• curl_easy_setopt.3: add curl_easy_option* functions to SEE ALSO
• curl_multibyte: always return a heap-allocated copy of string
• curl_multibyte: fall back to local code page stat/access on Windows
• Curl_timeleft: check both timeouts during connect
• curl_url_set.3: mention CURLU_PATH_AS_IS
• CURLOPT_QUOTE.3: clarify that libcurl doesn't parse what's sent
• docs/HTTP2: remove the outdated remark about multiplexing for the tool
• docs/Makefile.inc: format to be update-friendly
• docs: add CURLOPT_CURLU to 'See also' in curl_url_ functions
• docs: add missing Arg tag to --stderr
• docs: Add SSL backend names to CURL_SSL_BACKEND
• docs: clarify timeouts for queued transfers in multi API
• docs: Explain DOH transfers inherit some SSL settings
• docs: fix FILE example url in --metalink documentation
• docs: make gen.pl support *italic* and **bold**
• doh: Fix sharing user's resolve list with DOH handles
• doh: Inherit CURLOPT_STDERR from user's easy handle
• dynbuf: bump the max HTTP request to 1MB
• examples: Remove threaded-shared-conn.c due to bug
• file: Support unicode urls on windows
• ftp: add 'list_only' to the transfer state struct
• ftp: add 'prefer_ascii' to the transfer state struct
• FTP: allow SIZE to fail when doing (resumed) upload
• ftp: avoid SIZE when asking for a TYPE A file
• ftp: fix Codacy/cppcheck warning about null pointer arithmetic
• ftp: fix memory leak in ftp_done
• ftp: never set data->set.ftp_append outside setopt
• gen.pl: quote "bare" minuses in the nroff curl.1
• github: add torture-ftp for FTP-only torture testing
• gnutls: assume nettle crypto support
• gskit: correct the gskit_send() prototype
• hostip: fix build with sync resolver
• hostip: fix crash in sync resolver builds that use DOH
• hsts: remove unused defines
• http2: don't set KEEP_SEND when there's no more data to be sent
• http2: fail if connection terminated without END_STREAM
• http: cap body data amount during send speed limiting
• http: do not add a referrer header with empty value
• http: make 416 not fail with resume + CURLOPT_FAILONERRROR
• http: remove superfluous NULL assign
• http: strip default port from URL sent to proxy
• http: use credentials from transfer, not connection
• ldap: use correct memory free function
• lib1536: check ptr against NULL before dereferencing it
• lib1537: check ptr against NULL before dereferencing it
• lib: remove 'conn->data' completely
• libssh2: kdb_callback: get the right struct pointer
• libssh2:ssh_connect: clear session pointer after free
• memdebug: close debug logfile explicitly on exit
• mingw: enable using strcasecmp()
• multi: close the connection when h2=>h1 downgrading
• multi: do once-per-transfer inits in before_perform in DID state
• multi: rename the multi transfer states
• multi: update pending list when removing handle
• ngtcp2: adapt to the new recv_datagram callback
• ngtcp2: clarify calculation precedence
• ngtcp2: Fix build error due to change in ngtcp2_addr_init
• ngtcp2: sync with recent API updates
• openldap: avoid NULL pointer dereferences
• openssl: adapt to v3's new const for a few API calls
• openssl: ensure to check SSL_CTX_set_alpn_protos return values
• openssl: remove get_ssl_version_txt in favor of SSL_get_version
• openssl: set the transfer pointer for logging early
• OS400: update for CURLOPT_AWS_SIGV4
• parse_proxy: fix a memory leak in the OOM path
• pathhelp.pm: fix use of pwd -L in Msys environment
• projects: Update VS projects for OpenSSL 1.1.x
• quiche: fix build error: use 'int' for port number
• quiche: fix crash when failing to connect
• retry-all-errors.d: Explain curl errors versus HTTP response errors
• retry.d: Clarify transient 5xx HTTP response codes
• runtests.pl: add %TESTNUMBER variable to make copying tests more convenient
• runtests.pl: add a -P option to specify an external proxy
• runtests.pl: kill processes locking test log files
• setopt: error on CURLOPT_HTTP09_ALLOWED set true with Hyper
• test1188: change error to check for: --fail HTTP status
• test220/314: adjust to run with Hyper
• test304: header CRLF cleanup to work with Hyper
• test306: make it not run with Hyper
• tests: disable .curlrc in more environments
• tests: use %TESTNUMBER instead of fixed number
• tftp: remove the 3600 second default timeout
• time: enable 64-bit time_t in supported mingw environments
• tool_help: add missing argument for --create-file-mode
• tool_help: Increase space between option and description
• tool_operate: bail if set CURLOPT_HTTP09_ALLOWED returns error
• travis: add a rustls build
• travis: bump wolfssl to 4.7.0
• travis: only build wolfssl when needed
• travis: split "torture" into a separate "events" build
• travis: switch ngtcp2 build over to quictls
• travis: use ubuntu nghttp2 package instead of build our own
• url.c: use consistent error message for failed resolve
• url: fix memory leak if OOM in the HSTS handling
• url: fix possible use-after-free in default protocol
• urldata: don't touch data->set.httpversion at runtime
• urldata: fix build without HTTP and MQTT
• urldata: make 'actions[]' use unsigned char instead of int
• urldata: merge "struct DynamicStatic" into "struct UrlState"
• urldata: remove the 'rtspversion' field
• urldata: remove the _ORIG suffix from string names
• version.d: Add missing features to the features list
• wolfssl: don't store a NULL sessionid

Further