cURL overview

cURL Supports:

DICT, FILE, FTP, FTPS, Gopher, HTTP, HTTPS, IMAP, IMAPS, LDAP, LDAPS, MQTT, POP3, POP3S, RTMP, RTMPS, RTSP, SCP, SFTP, SMB, SMBS, SMTP, SMTPS, Telnet and TFTP. curl supports SSL certificates, HTTP POST, HTTP PUT, FTP uploading, HTTP form based upload, proxies, HTTP/2, HTTP/3, cookies, user+password authentication (Basic, Plain, Digest, CRAM-MD5, NTLM, Negotiate and Kerberos), file transfer resume, proxy tunneling and more.

What's cURL used for?

Curl is used in command lines or scripts to transfer data. It is also used in cars, television sets, routers, printers, audio equipment, mobile phones, tablets, settop boxes, media players and is the internet transfer backbone for thousands of software applications affecting billions of humans daily.

What’s new in version 7.85.0

Updated on Aug 31 2022

quic: add support via wolfSSL
schannel: Add TLS 1.3 support
setopt: add CURLOPT_PROTOCOLS_STR and CURLOPT_REDIR_PROTOCOLS_STR
amigaos: fix threaded resolver on AmigaOS 4.x
amissl: allow AmiSSL to be used with AmigaOS 4.x builds
amissl: make AmiSSL v5 a minimum requirement
asyn-ares: make a single alloc out of hostname + async data
asyn-thread: fix socket leak on OOM
asyn-thread: make getaddrinfo_complete return CURLcode
base64: base64url encoding has no padding
BUGS.md: improve language
build: improve OS string in CMake and `config-win32.h`
cert.d: clarify that escape character works for file paths
cirrus.yml: replace py38-pip with py39-pip
cirrus/freebsd-ci: bootstrap the pip installer
cmake: add detection of threadsafe feature
cmake: do not force Windows target versions
cmake: fix build for mingw cross compile
cmake: link curl to its dependencies with PRIVATE
cmake: remove APPEND in export(TARGETS)
cmake: set feature PSL if present
cmake: support ngtcp2 boringssl backend
cmdline-opts/gen.pl: improve performance
config: remove the check for and use of SIZEOF_SHORT
configure: -pthread not available on AmigaOS 4.x
configure: check for the stdatomic.h header in configure
configure: fix --disable-headers-api
configure: fix broken m4 syntax in TLS options
configure: fixup bsdsocket detection code for AmigaOS 4.x
configure: if asked to use TLS, fail if no TLS lib was detected
configure: introduce CURL_SIZEOF
connect: add quic connection information
connect: close the happy eyeballs loser connection when using QUIC
connect: revert the use of IP*_RECVERR
connect: set socktype/protocol correctly
cookie: reject cookies with "control bytes"
cookie: treat a blank domain in Set-Cookie: as non-existing
cookie: use %zu to infof() for size_t values
curl-compilers.m4: make icc use -diag* options and disable two warnings
curl-config: quote directories with potential space
curl-confopts: remove leftover AC_REQUIREs
curl-functions.m4: check whether atomics can link
curl-wolfssl.m4: add options header when building test code
curl.h: CURLE_CONV_FAILED is obsoleted
curl.h: include on SunOS
curl: output warning when a cookie is dropped due to size
curl: writeout: fix repeated header outputs
Curl_close: call Curl_resolver_cancel to avoid memory-leak
curl_easy_header: Add CURLH_PSEUDO to sanity check
curl_mime_data.3: polish the wording
curl_multi_timeout.3: clarify usage
CURLINFO_SPEED_UPLOAD/DOWNLOAD.3: fix examples
CURLOPT_BUFFERSIZE.3: add upload buffersize to see also
CURLOPT_CONNECT_ONLY.3: clarify multi API use
CURLOPT_SERVER_RESPONSE_TIMEOUT: the new name
digest: fix memory leak, fix not quoted 'opaque'
digest: fix missing increment of 'nc' value for auth-int
digest: pass over leading spaces in qop values
digest: reject broken header with session protocol but without qop
docs/cmdline-opts/gen.pl: encode leading single and double quotes
docs/cmdline-opts: fix example and categories for --form-escape
docs/cmdline: mark fail and fail-with-body as mutually exclusive
docs: add dns category to --resolve
docs: explain curl_easy_escape/unescape curl handle is ignored
docs: remove him/her/he/she from documentation
doh: move doh related struct definitions to doh.h
doh: use https protocol by default
easy_lock.h: include sched.h if available to fix build
easy_lock.h: use __asm__ instead of asm to fix build
easy_lock: fix build for mingw
easy_lock: fix build with icc
easy_lock: fix the #ifdef conditional for ia32_pause
easy_lock: switch to using atomic_int instead of bool
easyoptions: fix icc warning
escape: remove outdated comment
examples/curlx.c: remove
file: add handling of native AmigaOS paths
file: fix icc enumerated type mixed with another type warning
ftp: use a correct expire ID for timer expiry
getinfo: return better error on NULL as first argument
GHA: add two Intel compiler CI jobs
GHA: move libressl CI from zuul to GitHub
gha: move over ngtcp2-gnutls CI job from zuul
GHA: mv CI torture test from Zuul
h2h3: fix overriding the 'TE: Trailers' header
hostip: resolve *.localhost to 127.0.0.1/::1
HTTP3.md: update to msh3 v0.4.0
http: typecast the httpreq assignment to avoid icc compiler warning
http_aws_sigv4.c: remove two unusued includes
http_chunks: remove an assign + typecast
hyper: customize test1274 to how hyper unfolds headers
hyper: enable obs-folded multiline headers
hyper: use wakers for curl pause/resume
imap: use ISALNUM() for alphanumeric checks
ldap: adapt to conn->port now being an 'int'
lib/curl_path.c: add ISC to license expression
lib3026: reduce the number of threads to 100
libcurl-security.3: fix typo on macro "SH_"
libssh2: make atime/mtime date overflow return error
libssh2: provide symlink name in SFTP dir listing
libssh: ignore deprecation warnings
libssh: make atime/mtime date overflow return error
Makefile.m32: add `CURL_RC` and `CURL_STRIP` variables [ci skip]
Makefile.m32: add `NGTCP2_LIBS` option [ci skip]
makefile.m32: add support for custom ARCH [ci skip]
Makefile.m32: allow -nghttp3/-ngtcp2 without -ssl [ci skip]
Makefile.m32: do not set the libcurl.rc debug flag [ci skip]
Makefile.m32: stop trying to build libcares.a [ci skip]
memdebug: add annotation attributes
mprintf: fix *dyn_vprintf() when out-of-memory
mprintf: make dprintf_formatf never return negative
msh3: fix the QUIC disconnect function
multi: fix the return code from Curl_pgrsDone()
multi: have curl_multi_remove_handle close CONNECT_ONLY transfer
multi: use a pipe instead of a socketpair on apple platforms
multi: use larger dns hash table for multi interface
multi_wait: fix and improve Curl_poll error handling on Windows
multi_wait: fix skipping to populate revents for extra_fds
netrc.d: remove spurious quote
netrc: Use the password from lines without login
ngtcp2: Fix build error due to change in nghttp3 prototypes
ngtcp2: fix incompatible function pointer types
ngtcp2: Fix missing initialization of nghttp3_nv.flags
ngtcp2: fix stall or busy loop on STOP_SENDING with upload data
ngtcp2: implement cb_h3_stop_sending and cb_h3_reset_stream callbacks
openssl: add `CURL_BORINGSSL_VERSION` to identify BoringSSL
openssl: add cert path in error message
openssl: add details to "unable to set client certificate" error
openssl: fix BoringSSL symbol conflicts with LDAP and Schannel
quiche: fix build failure
select: do not return fatal error on EINTR from poll()
sendf: fix paused header writes since after the header API
sendf: make Curl_debug a void function
sendf: skip storing HTTP headers if HTTP disabled
sendf: store the header type in an usigned char to avoid icc warnings
splay: avoid using -1 in unsigned variable
test3026: add support for Windows using native Win32 threads
test3026: require 'threadsafe'
test44[2-4]: add '--resolve' to the keywords
tests/server/sockfilt.c: avoid race condition without a mutex
tests: fix http2 tests to use CRLF headers
tests: several enumerated type cleanups
THANKS: merged two entries for Evgeny Grin
tidy-up: delete unused build configuration macros
tool: reintroduce set file comment code for AmigaOS
tool_cfgable: make 'synthetic_error' a plain bool
tool_formparse: fix variable may be used before its value is set
tool_getparam: make --doh-url "" switch it off
tool_getparam: repair cleanarg
tool_operate: better cleanup of easy handle in exit path
tool_paramhlp: fix "enumerated type mixed with another type"
tool_paramhlp: make check_protocol return ParameterError
tool_progress: avoid division by zero in parallel progress meter
tool_writeout: fix enumerated type mixed with another type
trace: 0x7F character is non-printable
unit1303: four tests should have TRUE for 'connecting'
url: enumerated type mixed with another type
url: really use the user provided in the url when netrc entry exists
url: reject URLs with hostnames longer than 65535 bytes
url: treat missing usernames in netrc as empty
urldata: change second proxytype field to unsigned char to match
urldata: make 'negnpn' use less storage
urldata: make state.httpreq an unsigned char
urldata: make three *_proto struct fields smaller
urldata: move smaller fields down in connectdata struct
urldata: reduce size of several struct fields
vtls: make Curl_ssl_backend() return the enum type curl_sslbackend
windows: improve random source

Information

License

Free

Size

4.2 MB

Developer’s website

https://curl.se/

Downloads

635

App requirements

Intel 64
Intel 32
Mac OS X 10.1.5 or later

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Comments
User Ratings

Just-Fred

Jan 6 2022

7.81.0

Version: 7.81.0

It would be helpful to note on the MAC update site that this is source code only; the only binaries available for Mac are issued by Apple. If you want this version you will need to have Developer Tools installed (requires a free Apple Dev account). Curl is ubiquitous in computerdom, but Apple doesn't automatically include the necessary tools to build binaries from code.

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