cURL 7.58.0
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cURL, or Client URL Request Library, is developed as a command line application that helps you transfer files using a URL syntax and save them on your computer. The application supports a wide range of protocols such as POP3, POP3S, DICT, FILE, FTP, HTTP, HTTPS, IMAP, FTPS, LDAPS, Gopher, Telnet, TFTP and SCP. As far as certificates go, it supports HTTP POST, HTTP PUT, SSL, HTTP form based upload, user+password authentication, cookies, proxies, proxy tunneling and file transfer resume.
If all this isn't sufficient for you, you should know that cURL is an open source application, meaning that you have total freedom to enhance its features or include it into a third party application.
While running cURL, it displays a progress meter that informs you of the amount of data that is being transferred and the estimated time until completion. This progress meter can be viewed automatically to the terminal.
The application generates two separate projects: libcurl, and curl. The first one, libcurl is an easy-to-use client-side URL transfer library, while curl receives and sends files using URL syntax.
Libcurl can handle full URL syntax with no length limit and allows you to change the maximum acceptable download time and speed. Libcurl is also capable of guessing protocols from the hosts’ name and offers standard proxy environment variables support.
What's New in version 7.58.0
Changes
• new libssh-powered SSH SCP/SFTP back-end
• curl-config: add --ssl-backends
Bugfixes
• http2: fix incorrect trailer buffer size
• http: prevent custom Authorization headers in redirects
• travis: add boringssl build
• examples/xmlstream.c: don't switch off CURL_GLOBAL_SSL
• SSL: Avoid magic allocation of SSL backend specific data
• lib: don't export all symbols, just everything curl_*
• libssh2: send the correct CURLE error code on scp file not found
• libssh2: return CURLE_UPLOAD_FAILED on failure to upload
• openssl: enable pkcs12 in boringssl builds
• libssh2: remove dead code from SSH_SFTP_QUOTE
• sasl_getmesssage: make sure we have a long enough string to pass
• conncache: fix several lock issues
• threaded-shared-conn.c: new example
• conncache: only allow multiplexing within same multi handle
• configure: check for netinet/in6.h
URL: tolerate backslash after drive letter for FILE
• openldap: add commented out debug possibilities
• include: get netinet/in.h before linux/tcp.h
• CONNECT: keep close connection flag in http_connect_state struct
• BINDINGS: another PostgreSQL client
• curl: limit -# update frequency for unknown total size
• configure: add AX_CODE_COVERAGE only if using gcc
• curl.h: remove incorrect comment about ERRORBUFFER
• openssl: improve data-pending check for https proxy
• curl: remove __EMX__ #ifdefs
• CURLOPT_PRIVATE.3: fix grammar
• sftp: allow quoted commands to use relative paths
• CURLOPT_DNS_CACHE_TIMEOUT.3: see also CURLOPT_RESOLVE
• RESOLVE: output verbose text when trying to set a duplicate name
• openssl: Disable file buffering for Win32 SSLKEYLOGFILE
• multi_done: prune DNS cache
• tests: update .gitignore for libtests
• tests: mark data files as non-executable in git
• CURLOPT_DNS_LOCAL_IP4.3: fixed the "SEE ALSO" to not self-reference
• • curl.1: documented two missing valid exit codes
• curl.1: mention http:// and https:// as valid proxy prefixes
• vtls: replaced getenv() with curl_getenv()
• setopt: less *or equal* than INT_MAX/1000 should be fine
• examples/smtp-mail.c: use separate defines for options and mail
• curl: support >256 bytes warning messsages
• conncache: fix a return code
• krb5: fix a potential access of uninitialized memory
• rand: add a clang-analyzer work-around
• CURLOPT_READFUNCTION.3: refer to argument with correct name
• brotli: allow compiling with version 0.6.0
• content_encoding: rework zlib_inflate
• curl_easy_reset: release mime-related data
• examples/rtsp: fix error handling macros
• build-openssl.bat: Added support for VC15
• build-wolfssl.bat: Added support for VC15
• build: Added Visual Studio 2017 project files
• winbuild: Added support for VC15
• curl: Support size modifiers for --max-filesize
• examples/cacertinmem: ignore cert-already-exists error
• brotli: data at the end of content can be lost
• curl_version_info.3: call the argument 'age'
• openssl: fix memory leak of SSLKEYLOGFILE filename
• build: remove HAVE_LIMITS_H check
• mail-rcpt: fix short-text description
• scripts: allow all perl scripts to be run directly
• progress: calculate transfer speed on milliseconds if possible
• system.h: check __LONG_MAX__ for defining curl_off_t
• easy: fix connection ownership in curl_easy_pause
• setopt: reintroduce non-static Curl_vsetopt() for OS400 support
• setopt: fix SSLVERSION to allow CURL_SSLVERSION_MAX_ values
• configure.ac: append extra linker flags instead of prepending them
• HTTP: bail out on negative Content-Length: values
• docs: comment about CURLE_READ_ERROR returned by curl_mime_filedata
• mime: clone mime tree upon easy handle duplication
• openssl: enable SSLKEYLOGFILE support by default
• smtp/pop3/imap_get_message: decrease the data length too...
• CURLOPT_TCP_NODELAY.3: fix typo
• SMB: fix numeric constant suffix and variable types
• ftp-wildcard: fix matching an empty string with "*[^a]"
• curl_fnmatch: only allow 5 '*' sections in a single pattern
• openssl: fix potential memory leak in SSLKEYLOGFILE logic
• SSH: Fix state machine for ssh-agent authentication
• examples/url2file.c: add missing curl_global_cleanup() call
• http2: don't close connection when single transfer is stopped
• libcurl-env.3: first version
• curl: progress bar refresh, get width using ioctl()
• CONNECT_TO: fail attempt to set an IPv6 numerical without IPv6 support
OS: Windows All
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