cURL

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cURL
Software Details:
Version: 7.61.0 updated
Upload Date: 17 Aug 18
Developer: Daniel Stenberg
Distribution Type: Freeware
Downloads: 74

Rating: 4.0/5 (Total Votes: 1)

cURL is an open source and freely distributed software project, a command-line utility that help you easily transfer any type of data using a URL syntax. It supports a wide-range or file transfer protocols and can be integrated into various applications.

Supports numerous file transfer protocols

At the moment, cURL comes with support for numerous file transfer protocols, including HTTP, HTTPS, FTP, FTPS, SFTP, DICT, TELNET, TFTP, LDAP, LDAPS, FILE, IMAP, IMAPS, POP3, POP3S, RTMP, RTSP, SCP, SMTP, SMTPS, as well as GOPHER.

Supports user and password authentication

cURL also supports HTTP POST, HTTP PUT, FTP uploading, HTTP form based upload, proxies, file transfer resume, HTTP proxy tunneling, cookies, as well as user and password authentication, including Basic, Digest, NTLM, Negotiate, and Kerberos.

Includes the libcurl library

In addition to cURL, the project also includes the libcurl library, which provides developers with a fast, thread-safe and IPv6 compatible library that be integrated into any application written in one of the supported programming languages, including C, C++, Python, Java or PHP.

libcurl’s features

Among the features of the libcurl library, we can mention support for SSL and TLS through GnuTLS, OpenSSL, CyaSSL, PolarSSL, QSOSSL, axTLS or NSS, Secure Transport and SChannel.

It’s a command-line application written in C

Both cURL and libcurl projects have been written in the C programming language, which means that they are cross-platform, running successfully on mainstream operating systems. Both 32-bit and 64-bit architectures are supported at this time.

Supports a wide-range of operating systems

cURL has been designed with portability in mind, which means that it supports a wide-range of operating systems, including GNU/Linux, Microsoft Windows, BSD, Solaris, Darwin, HP UX, AIX, IRIX, Tru64, Unix Ware, Symbian, Amiga OS, IMB OS/2, HURD, BeOS, iOS, Android, QNX Neutrino, Ultrix, BlackBerry, OpenVMS, RISC OS, DOS, Novell NetWare and Mac OS X.

What is new in this release:

  • Changes:
  • getinfo: add microsecond precise timers for seven intervals
  • curl: show headers in bold, switch off with --no-styled-output
  • httpauth: add support for Bearer tokens
  • Add CURLOPT_TLS13_CIPHERS and CURLOPT_PROXY_TLS13_CIPHERS
  • curl: --tls13-ciphers and --proxy-tls13-ciphers
  • Add CURLOPT_DISALLOW_USERNAME_IN_URL
  • curl: --disallow-username-in-url
  • Bugfixes:
  • CVE-2018-0500: smtp: fix SMTP send buffer overflow
  • schannel: disable client cert option if APIs not available
  • schannel: disable manual verify if APIs not available
  • tests/libtest/Makefile: Do not unconditionally add gcc-specific flags
  • openssl: acknowledge --tls-max for default version too
  • stub_gssapi: fix 'unused parameter' warnings
  • examples/progressfunc: make it build on both new and old libcurls
  • docs: mention it is HA Proxy protocol "version 1"
  • curl_fnmatch: only allow two asterisks for matching
  • docs: clarify CURLOPT_HTTPGET
  • configure: replace a AC_TRY_RUN with CURL_RUN_IFELSE
  • configure: do compile-time SIZEOF checks instead of run-time
  • checksrc: make sure sizeof() is used *with* parentheses
  • CURLOPT_ACCEPT_ENCODING.3: add brotli and clarify a bit
  • schannel: make CAinfo parsing resilient to CR/LF
  • tftp: make sure error is zero terminated before printfing it
  • http resume: skip body if http code 416 (range error) is ignored
  • configure: add basic test of --with-ssl prefix
  • cmake: set -d postfix for debug builds
  • multi: provide a socket to wait for in Curl_protocol_getsock
  • content_encoding: handle zlib versions too old for Z_BLOCK
  • winbuild: only delete OUTFILE if it exists
  • winbuild: In MakefileBuild.vc fix typo DISTDIR->DIRDIST
  • schannel: add failf calls for client certificate failures
  • cmake: Fix the test for fsetxattr and strerror_r
  • curl.1: Fix cmdline-opts reference errors
  • cmdline-opts/gen.pl: warn if mutexes: or see-also: list non-existing options
  • cmake: check for getpwuid_r
  • configure: fix ssh2 linking when built with a static mbedtls
  • psl: use latest psl and refresh it periodically
  • fnmatch: insist on escaped bracket to match
  • KNOWN_BUGS: restore text regarding #2101
  • INSTALL: LDFLAGS=-Wl,-R/usr/local/ssl/lib
  • configure: override AR_FLAGS to silence warning
  • os400: implement mime api EBCDIC wrappers
  • curl.rc: embed manifest for correct Windows version detection
  • strictness: correct {infof, failf} format specifiers
  • tests: update .gitignore for libtests
  • configure: check for declaration of getpwuid_r
  • fnmatch: use the system one if available
  • CURLOPT_RESOLVE: always purge old entry first
  • multi: remove a potentially bad DEBUGF()
  • curl_addrinfo: use same #ifdef conditions in source as header
  • build: remove the Borland specific makefiles
  • axTLS: not considered fit for use
  • cmdline-opts/cert-type.d: mention "p12" as a recognized type
  • system.h: add support for IBM xlc C compiler
  • tests/libtest: Add lib1521 to nodist_SOURCES
  • mk-ca-bundle.pl: leave certificate name untouched
  • boringssl + schannel: undef X509_NAME in lib/schannel.h
  • openssl: assume engine support in 1.0.1 or later
  • cppcheck: fix warnings
  • test 46: make test pass after year 2025
  • schannel: support selecting ciphers
  • Curl_debug: remove dead printhost code
  • test 1455: unflakified
  • Curl_init_do: handle NULL connection pointer passed in
  • progress: remove a set of unused defines
  • mk-ca-bundle.pl: make -u delete certdata.txt if found not changed
  • GOVERNANCE.md: explains how this project is run
  • configure: use pkg-config for c-ares detection
  • configure: enhance ability to build with static openssl
  • maketgz: fix sed issues on OSX
  • multi: fix memory leak when stopped during name resolve
  • CURLOPT_INTERFACE.3: interface names not supported on Windows
  • url: fix dangling conn->data pointer
  • cmake: allow multiple SSL backends
  • system.h: fix for gcc on 32 bit OpenServer
  • ConnectionExists: make sure conn->data is set when "taking" a connection
  • multi: fix crash due to dangling entry in connect-pending list
  • CURLOPT_SSL_VERIFYPEER.3: Add performance note
  • netrc: use a larger buffer to support longer passwords
  • url: check Curl_conncache_add_conn return code
  • configure: Add dependent libraries after crypto
  • easy_perform: faster local name resolves by using *multi_timeout()
  • getnameinfo: not used, removed all configure checks
  • travis: add a build using the synchronous name resolver
  • CURLINFO_TLS_SSL_PTR.3: improve the example
  • openssl: allow TLS 1.3 by default
  • openssl: make the requested TLS version the *minimum* wanted
  • openssl: Remove some dead code
  • telnet: fix clang warnings
  • DEPRECATE: new doc describing planned item removals
  • example/crawler.c: simple crawler based on libxml2
  • libssh: goto DISCONNECT state on error, not SESSION_FREE
  • CMake: Remove unused functions
  • darwinssl: allow High Sierra users to build the code using GCC
  • scripts: include _curl as part of CLEANFILES

What is new in version 7.60.0:

  • Changes:
  • Add CURLOPT_HAPROXYPROTOCOL, support for the HAProxy PROXY protocol
  • Add --haproxy-protocol for the command line tool
  • Add CURLOPT_DNS_SHUFFLE_ADDRESSES, shuffle returned IP addresses
  • Bugfixes:
  • FTP: shutdown response buffer overflow CVE-2018-1000300
  • RTSP: bad headers buffer over-read CVE-2018-1000301
  • FTP: fix typo in recursive callback detection for seeking
  • test1208: marked flaky
  • HTTP: make header-less responses still count correct body size
  • user-agent.d:: mention --proxy-header as well
  • http2: fixes typo
  • cleanup: misc typos in strings and comments
  • rate-limit: use three second window to better handle high speeds
  • examples/hiperfifo.c: improved
  • pause: when changing pause state, update socket state
  • multi: improved pending transfers handling => improved performance
  • curl_version_info.3: fix ssl_version description
  • add_handle/easy_perform: clear errorbuffer on start if set
  • darwinssl: fix iOS build
  • cmake: add support for brotli
  • parsedate: support UT timezone
  • vauth/ntlm.h: fix the #ifdef header guard
  • lib/curl_path.h: added #ifdef header guard
  • vauth/cleartext: fix integer overflow check
  • CURLINFO_COOKIELIST.3: made the example not leak memory
  • cookie.d: mention that "-" as filename means stdin
  • CURLINFO_SSL_VERIFYRESULT.3: fixed the example
  • http2: read pending frames (including GOAWAY) in connection-check
  • timeval: remove compilation warning by casting
  • cmake: avoid warn-as-error during config checks
  • travis-ci: enable -Werror for CMake builds
  • openldap: fix for NULL return from ldap_get_attribute_ber()
  • threaded resolver: track resolver time and set suitable timeout values
  • cmake: Add advapi32 as explicit link library for win32
  • docs: fix CURLINFO_*_T examples use of CURL_FORMAT_CURL_OFF_T
  • test1148: set a fixed locale for the test
  • cookies: when reading from a file, only remove_expired once
  • cookie: store cookies per top-level-domain-specific hash table
  • openssl: fix build with LibreSSL 2.7
  • tls: fix mbedTLS 2.7.0 build + handle sha256 failures
  • openssl: RESTORED verify locations when verifypeer==0
  • file: restore old behavior for file:////foo/bar URLs
  • FTP: allow PASV on IPv6 connections when a proxy is being used
  • build-openssl.bat: allow custom paths for VS and perl
  • winbuild: make the clean target work without build-type
  • build-openssl.bat: Refer to VS2017 as VC14.1 instead of VC15
  • curl: retry on FTP 4xx, ignore other protocols
  • configure: detect (and use) sa_family_t
  • examples/sftpuploadresume: Fix Windows large file seek
  • build: cleanup to fix clang warnings/errors
  • winbuild: updated the documentation
  • lib: silence null-dereference warnings
  • travis: bump to clang 6 and gcc 7
  • travis: build libpsl and make builds use it
  • proxy: show getenv proxy use in verbose output
  • duphandle: make sure CURLOPT_RESOLVE is duplicated
  • all: Refactor malloc+memset to use calloc
  • checksrc: Fix typo
  • system.h: Add sparcv8plus to oracle/sunpro 32-bit detection
  • vauth: Fix typo
  • ssh: show libSSH2 error code when closing fails
  • test1148: tolerate progress updates better
  • urldata: make service names unconditional
  • configure: keep LD_LIBRARY_PATH changes local
  • ntlm_sspi: fix authentication using Credential Manager
  • schannel: add client certificate authentication
  • winbuild: Support custom devel paths for each dependency
  • schannel: add support for CURLOPT_CAINFO
  • http2: handle on_begin_headers() called more than once
  • openssl: support OpenSSL 1.1.1 verbose-mode trace messages
  • openssl: fix subjectAltName check on non-ASCII platforms
  • http2: avoid strstr() on data not zero terminated
  • http2: clear the "drain counter" when a stream is closed
  • http2: handle GOAWAY properly
  • tool_help: clarify --max-time unit of time is seconds
  • curl.1: clarify that options and URLs can be mixed
  • http2: convert an assert to run-time check
  • curl_global_sslset: always provide available backends
  • ftplistparser: keep state between invokes
  • Curl_memchr: zero length input can't match
  • examples/sftpuploadresume: typecast fseek argument to long
  • examples/http2-upload: expand buffer to avoid silly warning
  • ctype: restore character classification for non-ASCII platforms
  • mime: avoid NULL pointer dereference risk
  • cookies: ensure that we have cookies before writing jar
  • os400.c: fix checksrc warnings
  • configure: provide --with-wolfssl as an alias for --with-cyassl
  • cyassl: adapt to libraries without TLS 1.0 support built-in
  • http2: get rid of another strstr
  • checksrc: force indentation of lines after an else
  • cookies: remove unused macro
  • CURLINFO_PROTOCOL.3: mention the existing defined names
  • tests: provide 'manual' as a feature to optionally require
  • travis: enable libssh2 on both macos and Linux
  • CURLOPT_URL.3: added ENCODING section
  • wolfssl: Fix non-blocking connect
  • vtls: don't define MD5_DIGEST_LENGTH for wolfssl
  • docs: remove extraneous commas in man pages
  • URL: fix ASCII dependency in strcpy_url and strlen_url
  • ssh-libssh.c: fix left shift compiler warning
  • configure: only check for CA bundle for file-using SSL backends
  • travis: add an mbedtls build
  • http: don't set the "rewind" flag when not uploading anything
  • configure: put CURLDEBUG and DEBUGBUILD in lib/curl_config.h
  • transfer: don't unset writesockfd on setup of multiplexed conns
  • vtls: use unified "supports" bitfield member in backends
  • URLs: fix one more http url
  • travis: add a build using WolfSSL
  • openssl: change FILE ops to BIO ops
  • travis: add build using NSS
  • smb: reject negative file sizes
  • cookies: accept parameter names as cookie name
  • http2: getsock fix for uploads
  • all over: fixed format specifiers
  • http2: use the correct function pointer typedef

What is new in version :

  • Changes:
  • auth: add support for RFC7616 - HTTP Digest access authentication
  • share: add support for sharing the connection cache
  • HTTP: implement Brotli content encoding
  • Bugfixes:
  • CVE-2017-8816: NTLM buffer overflow via integer overflow
  • CVE-2017-8817: FTP wildcard out of bounds read
  • CVE-2017-8818: SSL out of buffer access
  • curl_mime_filedata.3: fix typos
  • libtest: Add required test libraries for lib1552 and lib1553
  • fix time diffs for systems using unsigned time_t
  • ftplistparser: memory leak fix: free temporary memory always
  • multi: allow table handle sizes to be overridden
  • wildcards: don't use with non-supported protocols
  • curl_fnmatch: return error on illegal wildcard pattern
  • transfer: Fix chunked-encoding upload too early exit
  • curl_setup: Improve detection of CURL_WINDOWS_APP
  • resolvers: only include anything if needed
  • setopt: fix CURLOPT_SSH_AUTH_TYPES option read
  • appveyor: add a win32 build
  • Curl_timeleft: change return type to timediff_t
  • cmake: Export libcurl and curl targets to use by other cmake projects
  • curl: in -F option arg, comma is a delimiter for files only
  • curl: improved ";type=" handling in -F option arguments
  • timeval: use mach_absolute_time() on MacOS
  • curlx: the timeval functions are no longer provided as curlx_*
  • mkhelp.pl: do not generate comment with current date
  • memdebug: use send/recv signature for curl_dosend/curl_dorecv
  • cookie: avoid NULL dereference
  • url: fix CURLOPT_POSTFIELDSIZE arg value check to allow -1
  • include: remove conncache.h inclusion from where its not needed
  • CURLOPT_MAXREDIRS: allow -1 as a value
  • tests: Fixed torture tests on tests 556 and 650
  • http2: Fixed OOM handling in upgrade request
  • url: fix CURLOPT_DNS_CACHE_TIMEOUT arg value check to allow -1
  • CURLOPT_INFILESIZE: accept -1
  • curl: pass through [] in URLs instead of calling globbing error
  • curl: speed up handling of many URLs
  • ntlm: avoid malloc(0) for zero length passwords
  • url: remove faulty arg value check from CURLOPT_SSH_AUTH_TYPES
  • HTTP: support multiple Content-Encodings
  • travis: add a job with brotli enabled
  • url: remove unncessary NULL-check
  • fnmatch: remove dead code
  • connect: store IPv6 connection status after valid connection
  • imap: deal with commands case insensitively
  • --interface: add support for Linux VRF
  • content_encoding: fix inflate_stream for no bytes available
  • cmake: Correctly include curl.rc in Windows builds
  • cmake: Add missing setmode check
  • connect.c: remove executable bit on file
  • SMB: fix uninitialized local variable
  • zlib/brotli: only include header files in modules needing them
  • URL: return error on malformed URLs with junk after IPv6 bracket
  • openssl: fix too broad use of HAVE_OPAQUE_EVP_PKEY
  • macOS: Fix missing connectx function with Xcode version older than 9.0
  • --resolve: allow IP address within [] brackets
  • examples/curlx: Fix code style
  • ntlm: remove unnecessary NULL-check to please scan-build
  • Curl_llist_remove: fix potential NULL pointer deref
  • mime: fix "Value stored to 'sz' is never read" scan-build error
  • openssl: fix "Value stored to 'rc' is never read" scan-build error
  • http2: fix "Value stored to 'hdbuf' is never read" scan-build error
  • http2: fix "Value stored to 'end' is never read" scan-build error
  • Curl_open: fix OOM return error correctly
  • url: reject ASCII control characters and space in host names
  • examples/rtsp: clear RANGE again after use
  • connect: improve the bind error message
  • make: fix "make distclean"
  • connect: add support for new TCP Fast Open API on Linux
  • metalink: fix memory-leak and NULL pointer dereference
  • URL: update "file:" URL handling
  • ssh: remove check for a NULL pointer
  • global_init: ignore CURL_GLOBAL_SSL's absense

What is new in version 7.56.1:

  • Bugfixes:
  • imap: if a FETCH response has no size, don't call write callback
  • ftp: UBsan fixup 'pointer index expression overflowed
  • failf: skip the sprintf() if there are no consumers
  • fuzzer: move to using external curl-fuzzer
  • lib/Makefile.m32: allow customizing dll suffixes
  • docs: fix typo in curl_mime_data_cb man page
  • darwinssl: add support for TLSv1.3
  • build: fix --disable-crypto-auth
  • lib/config-win32.h: let SMB/SMBS be enabled with OpenSSL/NSS
  • openssl: fix build without HAVE_OPAQUE_EVP_PKEY
  • strtoofft: Remove extraneous null check
  • multi_cleanup: call DONE on handles that never got that
  • tests: added flaky keyword to tests 587 and 644
  • pingpong: return error when trying to send without connection
  • remove_handle: call multi_done() first, then clear dns cache pointer
  • mime: be tolerant about setting the same header list twice in a part
  • mime: improve unbinding top multipart from easy handle
  • mime: avoid resetting a part's encoder when part's contents change
  • mime: refuse to add subparts to one of their own descendants
  • RTSP: avoid integer overflow on funny RTSP responses
  • curl: don't pass semicolons when parsing Content-Disposition
  • openssl: enable PKCS12 support for !BoringSSL
  • FAQ: s/CURLOPT_PROGRESSFUNCTION/CURLOPT_XFERINFOFUNCTION
  • CURLOPT_NOPROGRESS.3: also refer to xferinfofunction
  • CURLOPT_XFERINFODATA.3: fix duplicate see also
  • test298: verify --ftp-method nowcwd with URL encoded path
  • FTP: URL decode path for dir listing in nocwd mode
  • smtp_done: fix memory leak on send failure
  • ftpserver: support case insensitive commands
  • test950; verify SMTP with custom request
  • openssl: don't use old BORINGSSL_YYYYMM macros
  • setopt: update current connection SSL verify params
  • winbuild/BUILD.WINDOWS.txt: mention WITH_NGHTTP2
  • curl: reimplement stdin buffering in -F option
  • mime: keep "text/plain" content type if user-specified
  • mime: fix the content reader to handle >16K data properly
  • configure: remove the C++ compiler check
  • memdebug: trace send, recv and socket
  • runtests: use valgrind for torture as well
  • ldap: silence clang warning
  • makefile.m32: allow to override gcc, ar and ranlib
  • setopt: avoid integer overflows when setting millsecond values
  • setopt: range check most long options
  • ftp: reject illegal IP/port in PASV 227 response
  • mime: do not reuse previously computed multipart size
  • vtls: change struct Curl_ssl `close' field name to `close_one'
  • os400: add missing symbols in config file
  • mime: limit bas64-encoded lines length to 76 characters
  • mk-ca-bundle: Remove URL for aurora
  • mk-ca-bundle: Fix URL for NSS

What is new in version 7.55.0:

  • Changes:
  • curl: allow --header and --proxy-header read from file
  • getinfo: provide sizes as curl_off_t
  • curl: prevent binary output spewed to terminal
  • curl: added --request-target
  • libcurl: added CURLOPT_REQUEST_TARGET
  • curl: added --socks5-{basic,gssapi}: control socks5 auth
  • libcurl: added CURLOPT_SOCKS5_AUTH
  • Bugfixes:
  • glob: do not parse after a strtoul() overflow range (CVE-2017-1000101)
  • tftp: reject file name lengths that don't fit (CVE-2017-1000100)
  • file: output the correct buffer to the user (CVE-2017-1000099)
  • includes: remove curl/curlbuild.h and curl/curlrules.h
  • dist: make the hugehelp.c not get regenerated unnecessarily
  • timers: store internal time stamps as time_t instead of doubles
  • progress: let "current speed" be UL + DL speeds combined
  • http-proxy: do the HTTP CONNECT process entirely non-blocking
  • lib/curl_setup.h: remove CURL_WANTS_CA_BUNDLE_ENV
  • fuzz: bring oss-fuzz initial code converted to C89
  • configure: disable nghttp2 too if HTTP has been disabled
  • mk-ca-bundle.pl: Check curl's exit code after certdata download
  • test1148: verify the -# progressbar
  • tests: stabilize test 2032 and 2033
  • HTTPS-Proxy: don't offer h2 for https proxy connections
  • http-proxy: only attempt FTP over HTTP proxy
  • curl-compilers.m4: enable vla warning for clang
  • curl-compilers.m4: enable double-promotion warning
  • curl-compilers.m4: enable missing-variable-declarations clang warning
  • curl-compilers.m4: enable comma clang warning
  • Makefile.m32: enable -W for MinGW32 build
  • CURLOPT_PREQUOTE: not supported for SFTP
  • http2: fix OOM crash
  • PIPELINING_SERVER_BL: cleanup the internal list use
  • mkhelp.pl: fix script name in usage text
  • lib1521: add curl_easy_getinfo calls to the test set
  • travis: do the distcheck test build out-of-tree as well
  • if2ip: fix compiler warning in ISO C90 mode
  • lib: fix the djgpp build
  • typecheck-gcc: add support for CURLINFO_OFF_T
  • travis: enable typecheck-gcc warnings
  • maketgz: switch to xz instead of lzma
  • CURLINFO_REDIRECT_URL.3: mention the CURLOPT_MAXREDIRS case
  • curl-compilers.m4: fix unknown-warning-option on Apple clang
  • winbuild: fix boringssl build
  • curl/system.h: add check for XTENSA for 32bit gcc
  • test1537: fixed memory leak on OOM
  • test1521: fix compiler warnings
  • curl: fix memory leak on test 1147 OOM
  • libtest/make: generate lib1521.c dynamically at build-time
  • curl_strequal.3: fix typo in SYNOPSIS
  • progress: prevent resetting t_starttransfer
  • openssl: improve fallback seed of PRNG with a time based hash
  • http2: improved PING frame handling
  • test1450: add simple testing for DICT
  • make: build the docs subdir only from within src
  • cmake: Added compatibility options for older Windows versions
  • gtls: fix build when sizeof(long) < sizeof(void *)
  • url: make the original string get used on subsequent transfers
  • timeval.c: Use long long constant type for timeval assignment
  • tool_sleep: typecast to avoid macos compiler warning
  • travis.yml: use --enable-werror on debug builds
  • test1451: add SMB support to the testbed
  • configure: remove checks for 5 functions never used
  • configure: try ldap/lber in reversed order first
  • smb: fix build for djgpp/MSDOS
  • travis: install nghttp2 on linux builds
  • smb: add support for CURLOPT_FILETIME
  • cmake: fix send/recv argument scanner for windows
  • inet_pton: fix include on windows to get prototype
  • select.h: avoid macro redefinition harder
  • cmake: if inet_pton is used, bump _WIN32_WINNT
  • asyn-thread.c: fix unused variable warnings on macOS
  • runtests: support "threaded-resolver" as a feature
  • test506: skip if threaded-resolver
  • cmake: remove spurious "-l" from linker flags
  • cmake: add CURL_WERROR for enabling "warning as errors"
  • memdebug: don't setbuf() if the file open failed
  • curl_easy_escape.3: mention the (lack of) encoding
  • test1452: add telnet negotiation
  • CURLOPT_POSTFIELDS.3: explain the 100-continue magic better
  • cmake: offer CMAKE_DEBUG_POSTFIX when building with MSVC
  • tests/valgrind.supp: supress OpenSSL false positive seen on travis
  • curl_setup_once: Remove ERRNO/SET_ERRNO macros
  • curl-compilers.m4: disable warning spam with Cygwin's clang
  • ldap: fix MinGW compiler warning
  • make: fix docs build on OpenBSD
  • curl_setup: always define WIN32_LEAN_AND_MEAN on Windows
  • system.h: include winsock2.h before windows.h
  • winbuild: build with warning level 4
  • rtspd: fix MSVC level 4 warning
  • sockfilt: suppress conversion warning with explicit cast
  • libtest: fix MSVC warning C4706
  • darwinssl: fix pinnedpubkey build error
  • tests/server/resolve.c: fix deprecation warning
  • nss: fix a possible use-after-free in SelectClientCert()
  • checksrc: escape open brace in regex
  • multi: mention integer overflow risk if using > 500 million sockets
  • darwinssl: fix --tlsv1.2 regression
  • timeval: struct curltime is a struct timeval replacement
  • curl_rtmp: fix a compiler warning
  • include.d: clarify that it concerns the response headers
  • cmake: support make uninstall
  • include.d: clarify --include is only for response headers
  • libcurl: Stop using error codes defined under CURL_NO_OLDIES
  • http: fix response code parser to avoid integer overflow
  • configure: fix the check for IdnToUnicode
  • multi: fix request timer management
  • curl_threads: fix MSVC compiler warning
  • travis: build on osx with openssl
  • travis: build on osx with libressl
  • CURLOPT_NETRC.3: mention the file name on windows
  • cmake: set MSVC warning level to 4
  • netrc: skip lines starting with '#'
  • darwinssl: fix curlssl_sha256sum() compiler warnings on first argument
  • BUILD.WINDOWS: mention buildconf.bat for builds off git
  • darwinssl: silence compiler warnings
  • travis: build on osx with darwinssl
  • FTP: skip unnecessary CWD when in nocwd mode
  • gssapi: fix memory leak of output token in multi round context
  • getparameter: avoid returning uninitialized 'usedarg'
  • curl (debug build) easy_events: make event data static
  • curl: detect and bail out early on parameter integer overflows
  • configure: fix recv/send/select detection on Android

What is new in version 7.54.1:

  • Changes:
  • curl: show the libcurl release date in --version output
  • Bugfixes:
  • CVE-2017-9502: default protocol drive letter buffer overflow
  • openssl: fix memory leak in servercert
  • tests: remove the html and PDF versions from the tarball
  • mbedtls: enable NTLM (& SMB) even if MD4 support is unavailable
  • typecheck-gcc: handle function pointers properly
  • llist: no longer uses malloc
  • gnutls: removed some code when --disable-verbose is configured
  • lib: fix maybe-uninitialized warnings
  • multi: clarify condition in curl_multi_wait
  • schannel: Don't treat encrypted partial record as pending data
  • configure: fix the -ldl check for openssl, add -lpthread check
  • configure: accept -Og and -Ofast GCC flags
  • Makefile: avoid use of GNU-specific form of $<
  • if2ip: fix -Wcast-align warning
  • configure: stop prepending to LDFLAGS, CPPFLAGS
  • curl: set a 100K buffer size by default
  • typecheck-gcc: fix _curl_is_slist_info
  • nss: do not leak PKCS #11 slot while loading a key
  • nss: load libnssckbi.so if no other trust is specified
  • examples: ftpuploadfrommem.c
  • url: declare get_protocol_family() static
  • examples/cookie_interface.c: changed to example.com
  • test1443: test --remote-time
  • curl: use utimes instead of obsolescent utime when available
  • url: fixed a memory leak on OOM while setting CURLOPT_BUFFERSIZE
  • curl_rtmp: fix missing-variable-declarations warnings
  • tests: fixed OOM handling of unit tests to abort test
  • curl_setup: Ensure no more than one IDN lib is enabled
  • tool: Fix missing prototype warnings for CURL_DOES_CONVERSIONS
  • CURLOPT_BUFFERSIZE: 1024 bytes is now the minimum size
  • curl: non-boolean command line args reject --no- prefixes
  • telnet: Write full buffer instead of byte-by-byte
  • typecheck-gcc: add missing string options
  • typecheck-gcc: add support for CURLINFO_SOCKET
  • opt man pages: they all have examples now
  • curl_setup_once: use SEND_QUAL_ARG2 for swrite
  • test557: set a known good numeric locale
  • schannel: return a more specific error code for SEC_E_UNTRUSTED_ROOT
  • tests/server: make string literals const
  • runtests: use -R for random order
  • unit1305: fix compiler warning
  • curl_slist_append.3: clarify a NULL input creates a new list
  • tests/server: run checksrc by default in debug-builds
  • tests: fix -Wcast-qual warnings
  • runtests.pl: simplify the datacheck read section
  • curl: remove --environment and tool_writeenv.c
  • buildconf: fix hang on IRIX
  • tftp: silence bad-function-cast warning
  • asyn-thread: fix unused macro warnings
  • tool_parsecfg: fix -Wcast-qual warning
  • sendrecv: fix MinGW-w64 warning
  • test537: use correct variable type
  • rand: treat fake entropy the same regardless of endianness
  • curl: generate the --help output
  • tests: removed redundant --trace-ascii arguments
  • multi: assign IDs to all timers and make each timer singleton
  • multi: use a fixed array of timers instead of malloc
  • mbedtls: Support server renegotiation request
  • pipeline: fix mistakenly trying to pipeline POSTs
  • lib510: don't write past the end of the buffer if it's too small
  • CURLOPT_HTTPPROXYTUNNEL.3: clarify, add example
  • SecureTransport/DarwinSSL: Implement public key pinning
  • curl.1: clarify --config
  • curl_sasl: fix build error with CURL_DISABLE_CRYPTO_AUTH + USE_NTLM
  • darwinssl: Fix exception when processing a client-side certificate
  • curl.1: mention --oauth2-bearer's argument
  • mkhelp.pl: do not add current time into curl binary
  • asiohiper.cpp / evhiperfifo.c: deal with negative timerfunction input
  • ssh: fix memory leak in disconnect due to timeout
  • tests: stabilize test 1034
  • cmake: auto detection of CURL_CA_BUNDLE/CURL_CA_PATH
  • assert: avoid, use DEBUGASSERT instead
  • LDAP: using ldap_bind_s on Windows with methods
  • redirect: store the "would redirect to" URL when max redirs is reached
  • winbuild: fix the nghttp2 build
  • examples: fix -Wimplicit-fallthrough warnings
  • time: fix type conversions and compiler warnings
  • mbedtls: fix variable shadow warning
  • test557: fix ubsan runtime error due to int left shift
  • transfer: init the infilesize from the postfields
  • docs: clarify NO_PROXY further
  • build-wolfssl: Sync config with wolfSSL 3.11
  • curl-compilers.m4: enable -Wshift-sign-overflow for clang
  • example/externalsocket.c: make it use CLOSESOCKETFUNCTION too
  • lib574.c: use correct callback proto
  • lib583: fix compiler warning
  • curl-compilers.m4: fix compiler_num for clang
  • typecheck-gcc.h: separate getinfo slist checks from other pointers
  • typecheck-gcc.h: check CURLINFO_TLS_SSL_PTR and CURLINFO_TLS_SESSION
  • typecheck-gcc.h: check CURLINFO_CERTINFO
  • build: provide easy code coverage measuring
  • test1537: dedicated tests of the URL (un)escape API calls
  • curl_endian: remove unused functions
  • test1538: verify the libcurl strerror API calls
  • MD(4|5): silence cast-align clang warning
  • dedotdot: fixed output for ".." and "." only input
  • cyassl: define build macros before including ssl.h
  • updatemanpages.pl: error out on too old git version
  • curl_sasl: fix unused-variable warning
  • x509asn1: fix implicit-fallthrough warning with GCC 7
  • libtest: fix implicit-fallthrough warnings with GCC 7
  • BINDINGS: add Ring binding
  • curl_ntlm_core: pass unsigned char to toupper
  • test1262: verify ftp download with -z for "if older than this"
  • test1521: test all curl_easy_setopt options
  • typecheck-gcc: allow CURLOPT_STDERR to be NULL too
  • metalink: remove unused printf() argument
  • file: make speedcheck use current time for checks
  • configure: fix link with librtmp when specifying path
  • examples/multi-uv.c: fix deprecated symbol
  • cmake: Fix inconsistency regarding mbed TLS include directory
  • setopt: check CURLOPT_ADDRESS_SCOPE option range
  • gitignore: ignore all vim swap files
  • urlglob: fix division by zero
  • libressl: OCSP and intermediate certs workaround no longer needed

What is new in version 7.54.0:

  • Changes:
  • Add CURL_SSLVERSION_MAX_* constants to CURLOPT_SSLVERSION
  • Add --max-tls
  • Add CURLOPT_SUPPRESS_CONNECT_HEADERS
  • Add --suppress-connect-headers
  • Bugfixes:
  • CVE-2017-7468: switch off SSL session id when client cert is used
  • cmake: Replace invalid UTF-8 byte sequence
  • tests: use consistent environment variables for setting charset
  • proxy: fixed a memory leak on OOM
  • ftp: removed an erroneous free in an OOM path
  • docs: de-duplicate file lists in the Makefiles
  • ftp: fixed a NULL pointer dereference on OOM
  • gopher: fixed detection of an error condition from Curl_urldecode
  • url: fix unix-socket support for proxy-disabled builds
  • test1139: allow for the possibility that the man page is not rebuilt
  • cyassl: get library version string at runtime
  • digest_sspi: fix compilation warning
  • tests: enable HTTP/2 tests to run with non-default port numbers
  • warnless: suppress compiler warning
  • darwinssl: Warn that disabling host verify also disables SNI
  • configure: fix for --enable-pthreads
  • checksrc.bat: Ignore curl_config.h.in, curl_config.h
  • no-keepalive.d: fix typo
  • configure: fix --with-zlib when a path is specified
  • build: fix gcc7 implicit fallthrough warnings
  • fix potential use of uninitialized variables
  • CURLOPT_SSL_CTX_FUNCTION.3: Fix EXAMPLE formatting errors
  • CMake: Reorganize SSL support, separate WinSSL and SSPI
  • CMake: Add DarwinSSL support
  • CMake: Add mbedTLS support
  • ares: return error at once if timed out before name resolve starts
  • BINDINGS: added C++, perl, go and Scilab bindings
  • URL: return error on malformed URLs with junk after port number
  • KNOWN_BUGS: Add DarwinSSL won't import PKCS#12 without a password
  • http2: Fix assertion error on redirect with CL=0
  • updatemanpages.pl: Update man pages to use current date and versions
  • --insecure: clarify that this option is for server connections
  • mkhelp: simplified the gzip code
  • build: fixed making man page in out-of-tree tarball builds
  • tests: disabled 1903 due to flakiness
  • openssl: add two /* FALLTHROUGH */ to satisfy coverity
  • cmdline-opts: fixed a few typos
  • authneg: clear auth.multi flag at http_done
  • curl_easy_reset: Also reset the authentication state
  • proxy: skip SSL initialization for closed connections
  • http_proxy: ignore TE and CL in CONNECT 2xx responses
  • tool_writeout: fixed a buffer read overrun on --write-out
  • make: regenerate docs/curl.1 by running make in docs
  • winbuild: add basic support for OpenSSL 1.1.x
  • build: removed redundant DEPENDENCIES from makefiles
  • CURLINFO_LOCAL_PORT.3: added example
  • curl: show HTTPS-Proxy options on CURLE_SSL_CACERT
  • tests: strip more options from non-HTTP --libcurl tests
  • tests: fixed the documented test server port numbers
  • runtests.pl: fixed display of the Gopher IPv6 port number
  • multi: fix streamclose() crash in debug mode
  • cmake: build manual pages
  • cmake: add support for building HTML and PDF docs
  • mbedtls: add support for CURLOPT_SSL_CTX_FUNCTION
  • make: introduce 'test-nonflaky' target
  • CURLINFO_PRIMARY_IP.3: add example
  • tests/README: mention nroff for --manual tests
  • mkhelp: disable compression if the perl gzip module is unavailable
  • openssl: fall back on SSL_ERROR_* string when no error detail
  • asiohiper: make sure socket is open in event_cb
  • tests/README: make "Run" section foolproof
  • curl: check for end of input in writeout backslash handling
  • .gitattributes: turn off CRLF for *.am
  • multi: fix MinGW-w64 compiler warnings
  • schannel: fix variable shadowing warning
  • openssl: exclude DSA code when OPENSSL_NO_DSA is defined
  • http: Fix proxy connection reuse with basic-auth
  • pause: handle mixed types of data when paused
  • http: do not treat FTPS over CONNECT as HTTPS
  • conncache: make hashkey avoid malloc
  • make: use the variable MAKE for recursive calls
  • curl: fix callback argument inconsistency
  • NTLM: check for features with #ifdef instead of #if
  • cmake: add several missing files to the dist
  • select: use correct SIZEOF_ constant
  • connect: fix unreferenced parameter warning
  • schannel: fix unused variable warning
  • gcc7: fix ‘*' in boolean context
  • http2: silence unused parameter warnings
  • ssh: fix narrowing conversion warning
  • telnet: (win32) fix read callback return variable
  • docs: Explain --fail-early does not imply --fail
  • docs: added examples for CURLINFO_FILETIME.3 and CURLOPT_FILETIME.3
  • tests/server/util: remove in6addr_any for recent MinGW
  • multi: make curl_multi_wait avoid malloc in the typical case
  • include: curl/system.h is a run-time version of curlbuild.h
  • easy: silence compiler warning
  • llist: replace Curl_llist_alloc with Curl_llist_init
  • hash: move key into hash struct to reduce mallocs
  • url: don't free postponed data on connection reuse
  • curl_sasl: declare mechtable static
  • curl: fix Windows Unicode build
  • multi: fix queueing of pending easy handles
  • tool_operate: fix MinGW compiler warning
  • low_speed_limit: improved function for longer time periods
  • gtls: fix compiler warning
  • sspi: print out InitializeSecurityContext() error message
  • schannel: fix compiler warnings
  • vtls: fix unreferenced variable warnings
  • INSTALL.md: fix secure transport configure arguments
  • CURLINFO_SCHEME.3: fix variable type
  • libcurl-thread.3: also mention threaded-resolver
  • nss: load CA certificates even with --insecure
  • openssl: fix this statement may fall through
  • poll: prefer over
  • polarssl: unbreak build with versions < 1.3.8
  • Curl_expire_latest: ignore already expired timers
  • configure: turn implicit function declarations into errors
  • mbedtls: fix memory leak in error path
  • http2: fix handle leak in error path
  • .gitattributes: force shell scripts to LF
  • configure.ac: ignore CR after version numbers
  • extern-scan.pl: strip trailing CR
  • openssl: make SSL_ERROR_to_str more future-proof
  • openssl: fix thread-safety bugs in error-handling
  • openssl: don't try to print nonexistant peer private keys
  • nss: fix MinGW compiler warnings

What is new in version 7.53.1:

  • Bugfixes:
  • cyassl: fix typo
  • url: Improve CURLOPT_PROXY_CAPATH error handling
  • urldata: include curl_sspi.h when Windows SSPI is enabled
  • formdata: check for EOF when reading from stdin
  • tests: Set CHARSET & LANG to UTF-8 in 1035, 2046 and 2047
  • url: Default the proxy CA bundle location to CURL_CA_BUNDLE
  • rand: added missing #ifdef HAVE_FCNTL_H around fcntl.h header

What is new in version 7.52.1:

  • Bugfixes:
  • CVE-2016-9594: unititialized random
  • lib557: fix checksrc warnings
  • lib: fix MSVC compiler warnings
  • lib557.c: use a shorter MAXIMIZE representation
  • tests: run checksrc on debug builds

What is new in version 7.51.0:

  • Changes:
  • nss: additional cipher suites are now accepted by CURLOPT_SSL_CIPHER_LIST
  • New option: CURLOPT_KEEP_SENDING_ON_ERROR
  • Bugfixes:
  • CVE-2016-8615: cookie injection for other servers
  • CVE-2016-8616: case insensitive password comparison
  • CVE-2016-8617: OOB write via unchecked multiplication
  • CVE-2016-8618: double-free in curl_maprintf
  • CVE-2016-8619: double-free in krb5 code
  • CVE-2016-8620: glob parser write/read out of bounds
  • CVE-2016-8621: curl_getdate read out of bounds
  • CVE-2016-8622: URL unescape heap overflow via integer truncation
  • CVE-2016-8623: Use-after-free via shared cookies
  • CVE-2016-8624: invalid URL parsing with '#'
  • CVE-2016-8625: IDNA 2003 makes curl use wrong host
  • openssl: fix per-thread memory leak using 1.0.1 or 1.0.2
  • http: accept "Transfer-Encoding: chunked" for HTTP/2 as well
  • LICENSE-MIXING.md: update with mbedTLS dual licensing
  • examples/imap-append: Set size of data to be uploaded
  • test2048: fix url
  • darwinssl: disable RC4 cipher-suite support
  • CURLOPT_PINNEDPUBLICKEY.3: fix the AVAILABILITY formatting
  • openssl: don't call CRYTPO_cleanup_all_ex_data
  • libressl: fix version output
  • easy: Reset all statistical session info in curl_easy_reset
  • curl_global_cleanup.3: don't unload the lib with sub threads running
  • dist: add CurlSymbolHiding.cmake to the tarball
  • docs: Remove that --proto is just used for initial retrieval
  • configure: Fixed builds with libssh2 in a custom location
  • curl.1: --trace supports % for sending to stderr!
  • cookies: same domain handling changed to match browser behavior
  • formpost: trying to attach a directory no longer crashes
  • CURLOPT_DEBUGFUNCTION.3: fixed unused argument warning
  • formpost: avoid silent snprintf() truncation
  • ftp: fix Curl_ftpsendf
  • mprintf: return error on too many arguments
  • smb: properly check incoming packet boundaries
  • GIT-INFO: remove the Mac 10.1-specific details
  • resolve: add error message when resolving using SIGALRM
  • cmake: add nghttp2 support
  • dist: remove PDF and HTML converted docs from the releases
  • configure: disable poll() in macOS builds
  • vtls: only re-use session-ids using the same scheme
  • pipelining: skip to-be-closed connections when pipelining
  • win: fix Universal Windows Platform build
  • curl: do not set CURLOPT_SSLENGINE to DEFAULT automatically
  • maketgz: make it support "only" generating version info
  • Curl_socket_check: add extra check to avoid integer overflow
  • gopher: properly return error for poll failures
  • curl: set INTERLEAVEDATA too
  • polarssl: clear thread array at init
  • polarssl: fix unaligned SSL session-id lock
  • polarssl: reduce #ifdef madness with a macro
  • curl_multi_add_handle: set timeouts in closure handles
  • configure: set min version flags for builds on mac
  • INSTALL: converted to markdown => INSTALL.md
  • curl_multi_remove_handle: fix a double-free
  • multi: fix inifinte loop in curl_multi_cleanup()
  • nss: fix tight loop in non-blocking TLS handhsake over proxy
  • mk-ca-bundle: Change URL retrieval to HTTPS-only by default
  • mbedtls: stop using deprecated include file
  • docs: fix req->data in multi-uv example
  • configure: Fix test syntax for monotonic clock_gettime
  • CURLMOPT_MAX_PIPELINE_LENGTH.3: Clarify it's not for HTTP/2

What is new in version 7.50.3:

  • Bugfixes:
  • CVE-2016-7167: escape and unescape integer overflows
  • mk-ca-bundle.pl: use SHA256 instead of SHA1
  • checksrc: detect strtok() use
  • errors: new alias CURLE_WEIRD_SERVER_REPLY
  • http2: support > 64bit sized uploads
  • openssl: fix bad memory free (regression)
  • CMake: hide private library symbols
  • http: refuse to pass on response body when NO_NODY is set
  • cmake: fix curl-config --static-libs
  • mbedtls: switch off NTLM in build if md4 isn't available
  • curl: --create-dirs on windows groks both forward and backward slashes

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