mirror of
https://github.com/curl/curl.git
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a00e7f0f5e
file that was already completely downloaded caused an error, while it doesn't if you don't use --fail! I added test case 194 to verify the fix. Grrr. CURLOPT_FAILONERROR is now added to the list stuff to remove in libcurl v8 due to all the kludges needed to support it.
256 lines
11 KiB
Plaintext
256 lines
11 KiB
Plaintext
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\___|\___/|_| \_\_____|
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TODO
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Things to do in project cURL. Please tell us what you think, contribute and
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send us patches that improve things! Also check the http://curl.haxx.se/dev
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web section for various technical development notes.
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All bugs documented in the KNOWN_BUGS document are subject for fixing!
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LIBCURL
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* Introduce an interface to libcurl that allows applications to easier get to
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know what cookies that are received. Pushing interface that calls a
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callback on each received cookie? Querying interface that asks about
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existing cookies? We probably need both. Enable applications to modify
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existing cookies as well. http://curl.haxx.se/dev/COOKIES
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* Introduce another callback interface for upload/download that makes one
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less copy of data and thus a faster operation.
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[http://curl.haxx.se/dev/no_copy_callbacks.txt]
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* More data sharing. curl_share_* functions already exist and work, and they
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can be extended to share more. For example, enable sharing of the ares
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channel.
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* Introduce a new error code indicating authentication problems (for proxy
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CONNECT error 407 for example). This cannot be an error code, we must not
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return informational stuff as errors, consider a new info returned by
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curl_easy_getinfo() #845941
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* Use 'struct lifreq' and SIOCGLIFADDR instead of 'struct ifreq' and
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SIOCGIFADDR on newer Solaris versions as they claim the latter is obsolete.
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LIBCURL - multi interface
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* Add curl_multi_timeout() to make libcurl's ares-functionality better.
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* Make sure we don't ever loop because of non-blocking sockets return
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EWOULDBLOCK or similar. This FTP command sending, the SSL connection etc.
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* Make transfers treated more carefully. We need a way to tell libcurl we
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have data to write, as the current system expects us to upload data each
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time the socket is writable and there is no way to say that we want to
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upload data soon just not right now, without that aborting the upload. The
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opposite situation should be possible as well, that we tell libcurl we're
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ready to accept read data. Today libcurl feeds the data as soon as it is
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available for reading, no matter what.
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DOCUMENTATION
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* More and better
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FTP
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* "PASV IP override" - When an FTPS host is behind a NAT firewall, passive
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mode fails. The PASV response from the host ["227 PASV Entering passive
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mode (_ip_address_, _port_)."] contains the private network IP address of
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the host, which since it is encrypted, cannot be modified by the firewall
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to the public IP address. What is needed is a cURL option to override the
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IP address passed by the host "227 PASV" response. Requested by Ed
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Hingsbergen
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* Support GSS/Kerberos 5 for ftp file transfer. This will allow user
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authentication and file encryption. Possible libraries and example clients
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are available from MIT or Heimdal. Requsted by Markus Moeller.
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* Optimize the way libcurl uses CWD on each new request over a persistent
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connection (on FTP) even if it doesn't have to.
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* REST fix for servers not behaving well on >2GB requests. This should fail
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if the server doesn't set the pointer to the requested index. The tricky
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part is to figure out if the server did the right thing or not.
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* Support the most common FTP proxies, Philip Newton provided a list
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allegedly from ncftp:
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http://curl.haxx.se/mail/archive-2003-04/0126.html
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* Make CURLOPT_FTPPORT support an additional port number on the IP/if/name,
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like "blabla:[port]" or possibly even "blabla:[portfirst]-[portsecond]".
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* FTP ASCII transfers do not follow RFC959. They don't convert the data
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accordingly.
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* Since USERPWD always override the user and password specified in URLs, we
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might need another way to specify user+password for anonymous ftp logins.
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* The FTP code should get a way of returning errors that is known to still
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have the control connection alive and sound. Currently, a returned error
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from within ftp-functions does not tell if the control connection is still
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OK to use or not. This causes libcurl to fail to re-use connections
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slightly too often.
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HTTP
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* Pipelining. Sending multiple requests before the previous one(s) are done.
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This could possibly be implemented using the multi interface to queue
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requests and the response data.
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TELNET
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* Reading input (to send to the remote server) on stdin is a crappy solution
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for library purposes. We need to invent a good way for the application to
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be able to provide the data to send.
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* Move the telnet support's network select() loop go away and merge the code
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into the main transfer loop. Until this is done, the multi interface won't
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work for telnet.
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SSL
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* Anton Fedorov's "dumpcert" patch:
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http://curl.haxx.se/mail/lib-2004-03/0088.html
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* Evaluate/apply Gertjan van Wingerde's SSL patches:
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http://curl.haxx.se/mail/lib-2004-03/0087.html
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* "Look at SSL cafile - quick traces look to me like these are done on every
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request as well, when they should only be necessary once per ssl context
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(or once per handle)". The major improvement we can rather easily do is to
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make sure we don't create and kill a new SSL "context" for every request,
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but instead make one for every connection and re-use that SSL context in
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the same style connections are re-used. It will make us use slightly more
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memory but it will libcurl do less creations and deletions of SSL contexts.
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* Add an interface to libcurl that enables "session IDs" to get
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exported/imported. Cris Bailiff said: "OpenSSL has functions which can
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serialise the current SSL state to a buffer of your choice, and
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recover/reset the state from such a buffer at a later date - this is used
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by mod_ssl for apache to implement and SSL session ID cache".
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* OpenSSL supports a callback for customised verification of the peer
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certificate, but this doesn't seem to be exposed in the libcurl APIs. Could
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it be? There's so much that could be done if it were! (brought by Chris
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Clark)
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* Make curl's SSL layer option capable of using other free SSL libraries.
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Such as the Mozilla Security Services
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(http://www.mozilla.org/projects/security/pki/nss/) and GnuTLS
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(http://www.gnu.org/software/gnutls/) This subject has been brought up
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again recently since GPL-licensed applications that link with libcurl MAY
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NOT distribute binaries that use OpenSSL without adding an exception clause
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to the GPL license. See the LICENSE-MIXING document and this:
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http://www.gnome.org/~markmc/openssl-and-the-gpl.html
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LDAP
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* Look over the implementation. The looping will have to "go away" from the
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lib/ldap.c source file and get moved to the main network code so that the
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multi interface and friends will work for LDAP as well.
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CLIENT
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* "curl --sync http://example.com/feed[1-100].rss" or
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"curl --sync http://example.net/{index,calendar,history}.html"
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Downloads a range or set of URLs using the remote name, but only if the
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remote file is newer than the local file. A Last-Modified HTTP date header
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should also be used to set the mod date on the downloaded file.
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(idea from "Brianiac")
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* Globbing support for -d and -F, as in 'curl -d "name=foo[0-9]" URL'.
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Requested by Dane Jensen and others. This is easily scripted though.
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* Add an option that prevents cURL from overwiting existing local files. When
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used, and there already is an existing file with the target file name
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(either -O or -o), a number should be appended (and increased if already
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existing). So that index.html becomes first index.html.1 and then
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index.html.2 etc. Jeff Pohlmeyer suggested.
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* "curl ftp://site.com/*.txt"
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* The client could be told to use maximum N simultaneous transfers and then
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just make sure that happens. It should of course not make more than one
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connection to the same remote host. This would require the client to use
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the multi interface.
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* Extending the capabilities of the multipart formposting. How about leaving
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the ';type=foo' syntax as it is and adding an extra tag (headers) which
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works like this: curl -F "coolfiles=@fil1.txt;headers=@fil1.hdr" where
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fil1.hdr contains extra headers like
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Content-Type: text/plain; charset=KOI8-R"
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Content-Transfer-Encoding: base64
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X-User-Comment: Please don't use browser specific HTML code
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which should overwrite the program reasonable defaults (plain/text,
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8bit...) (Idea brough to us by kromJx)
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* ability to specify the classic computing suffixes on the range
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specifications. For example, to download the first 500 Kilobytes of a file,
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be able to specify the following for the -r option: "-r 0-500K" or for the
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first 2 Megabytes of a file: "-r 0-2M". (Mark Smith suggested)
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* --data-encode that URL encodes the data before posting
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http://curl.haxx.se/mail/archive-2003-11/0091.html (Kevin Roth suggested)
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* Provide a way to make options bound to a specific URL among several on the
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command line. Possibly by letting ':' separate options between URLs,
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similar to this:
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curl --data foo --url url.com : \
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--url url2.com : \
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--url url3.com --data foo3
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(More details: http://curl.haxx.se/mail/archive-2004-07/0133.html)
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The example would do a POST-GET-POST combination on a single command line.
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BUILD
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* Consider extending 'roffit' to produce decent ASCII output, and use that
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instead of (g)nroff when building src/hugehelp.c
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TEST SUITE
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* Make the test servers able to serve multiple running test suites. Like if
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two users run 'make test' at once.
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* Make runtests.pl capable of changing port numbers for the servers. This was
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the intention from the start, but in practise it is now hard.
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* If perl wasn't found by the configure script, don't attempt to run the
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tests but explain something nice why it doesn't.
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* Extend the test suite to include more protocols. The telnet could just do
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ftp or http operations (for which we have test servers).
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* Make the test suite work on more platforms. OpenBSD and Mac OS. Remove
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fork()s and it should become even more portable.
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NEXT MAJOR RELEASE
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* curl_easy_cleanup() returns void, but curl_multi_cleanup() returns a
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CURLMcode. These should be changed to be the same.
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* remove obsolete defines from curl/curl.h
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* make several functions use size_t instead of int in their APIs
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* remove the following functions from the public API:
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curl_getenv
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curl_mprintf (and variations)
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curl_strequal
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curl_strnequal
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They will instead become curlx_ - alternatives. That makes the curl app
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still capable of building with them from source.
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* Remove support for CURLOPT_FAILONERROR, it has gotten too kludgy and weird
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internally. Let the app judge success or not for itself.
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