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141 lines
7.4 KiB
Plaintext
141 lines
7.4 KiB
Plaintext
These are problems known to exist at the time of this release. Feel free to
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join in and help us correct one or more of these! Also be sure to check the
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changelog of the current development status, as one or more of these problems
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may have been fixed since this was written!
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35. Both SOCKS5 and SOCKS4 proxy connections are done blocking, which is very
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bad when used with the multi interface.
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34. The SOCKS4 connection codes don't properly acknowledge (connect) timeouts.
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Also see #12. According to bug #1556528, even the SOCKS5 connect code does
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not do it right: http://curl.haxx.se/bug/view.cgi?id=1556528,
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33. Doing multi-pass HTTP authentication on a non-default port does not work.
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This happens because the multi-pass code abuses the redirect following code
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for doing multiple requests, and when we following redirects to an absolute
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URL we must use the newly specified port and not the one specified in the
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original URL. A proper fix to this would need to separate the negotiation
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"redirect" from an actual redirect.
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32. (At least on Windows) If libcurl is built with c-ares and there's no DNS
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server configured in the system, the ares_init() call fails and thus
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curl_easy_init() fails as well. This causes weird effects for people who use
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numerical IP addresses only.
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31. "curl-config --libs" will include details set in LDFLAGS when configure is
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run that might be needed only for building libcurl. Similarly, it might
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include options that perhaps aren't suitable both for static and dynamic
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linking. Further, curl-config --cflags suffers from the same effects with
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CFLAGS/CPPFLAGS.
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30. You need to use -g to the command line tool in order to use RFC2732-style
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IPv6 numerical addresses in URLs.
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29. IPv6 URLs with zone ID is not supported.
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http://www.ietf.org/internet-drafts/draft-fenner-literal-zone-02.txt
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specifies the use of a plus sign instead of a percent when specifying zone
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IDs in URLs to get around the problem of percent signs being
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special. According to the reporter, Firefox deals with the URL _with_ a
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percent letter (which seems like a blatant URL spec violation).
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See http://curl.haxx.se/bug/view.cgi?id=1371118
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26. NTLM authentication using SSPI (on Windows) when (lib)curl is running in
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"system context" will make it use wrong(?) user name - at least when compared
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to what winhttp does. See http://curl.haxx.se/bug/view.cgi?id=1281867
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25. When doing a CONNECT request with curl it doesn't properly handle if the
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proxy closes the connection within the authentication "negotiation phase".
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Like if you do HTTPS or similar over a proxy and you use perhaps
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--proxy-anyauth. There's work in progress on this problem, and a recent
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patch was posted here: http://curl.haxx.se/mail/lib-2005-08/0074.html
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23. We don't support SOCKS for IPv6. We don't support FTPS over a SOCKS proxy.
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We don't have any test cases for SOCKS proxy. We probably have even more
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bugs and lack of features when a SOCKS proxy is used. And there seem to be a
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problem with SOCKS when doing FTP: See
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http://curl.haxx.se/bug/view.cgi?id=1371540
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22. Sending files to a FTP server using curl on VMS, might lead to curl
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complaining on "unaligned file size" on completion. The problem is related
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to VMS file structures and the perceived file sizes stat() returns. A
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possible fix would involve sending a "STRU VMS" command.
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http://curl.haxx.se/bug/view.cgi?id=1156287
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21. FTP ASCII transfers do not follow RFC959. They don't convert the data
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accordingly (not for sending nor for receiving). RFC 959 section 3.1.1.1
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clearly describes how this should be done:
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The sender converts the data from an internal character representation to
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the standard 8-bit NVT-ASCII representation (see the Telnet
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specification). The receiver will convert the data from the standard
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form to his own internal form.
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Since 7.15.4 at least line endings are converted.
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19. FTP 3rd party transfers with the multi interface doesn't work. Test:
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define CURL_MULTIEASY, rebuild curl, run test case 230 - 232.
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16. FTP URLs passed to curl may contain NUL (0x00) in the RFC 1738 <user>,
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<password>, and <fpath> components, encoded as "%00". The problem is that
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curl_unescape does not detect this, but instead returns a shortened C
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string. From a strict FTP protocol standpoint, NUL is a valid character
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within RFC 959 <string>, so the way to handle this correctly in curl would
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be to use a data structure other than a plain C string, one that can handle
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embedded NUL characters. From a practical standpoint, most FTP servers
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would not meaningfully support NUL characters within RFC 959 <string>,
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anyway (e.g., UNIX pathnames may not contain NUL).
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14. Test case 165 might fail on system which has libidn present, but with an
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old iconv version (2.1.3 is a known bad version), since it doesn't recognize
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the charset when named ISO8859-1. Changing the name to ISO-8859-1 makes the
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test pass, but instead makes it fail on Solaris hosts that use its native
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iconv.
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13. curl version 7.12.2 fails on AIX if compiled with --enable-ares.
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The workaround is to combine --enable-ares with --disable-shared
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12. When connecting to a SOCKS proxy, the (connect) timeout is not properly
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acknowledged after the actual TCP connect (during the SOCKS "negotiate"
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phase).
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11. Using configure --disable-[protocol] may cause 'make test' to fail for
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tests using the disabled protocol(s).
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10. To get HTTP Negotiate authentication to work fine, you need to provide a
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(fake) user name (this concerns both curl and the lib) because the code
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wrongly only considers authentication if there's a user name provided.
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http://curl.haxx.se/bug/view.cgi?id=1004841. How?
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http://curl.haxx.se/mail/lib-2004-08/0182.html
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8. Doing resumed upload over HTTP does not work with '-C -', because curl
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doesn't do a HEAD first to get the initial size. This needs to be done
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manually for HTTP PUT resume to work, and then '-C [index]'.
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7. CURLOPT_USERPWD and CURLOPT_PROXYUSERPWD have no way of providing user names
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that contain a colon. This can't be fixed easily in a backwards compatible
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way without adding new options (and then, they should most probably allow
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setting user name and password separately).
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6. libcurl ignores empty path parts in FTP URLs, whereas RFC1738 states that
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such parts should be sent to the server as 'CWD ' (without an argument).
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The only exception to this rule, is that we knowingly break this if the
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empty part is first in the path, as then we use the double slashes to
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indicate that the user wants to reach the root dir (this exception SHALL
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remain even when this bug is fixed).
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5. libcurl doesn't treat the content-length of compressed data properly, as
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it seems HTTP servers send the *uncompressed* length in that header and
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libcurl thinks of it as the *compressed* length. Some explanations are here:
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http://curl.haxx.se/mail/lib-2003-06/0146.html
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2. If a HTTP server responds to a HEAD request and includes a body (thus
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violating the RFC2616), curl won't wait to read the response but just stop
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reading and return back. If a second request (let's assume a GET) is then
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immediately made to the same server again, the connection will be re-used
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fine of course, and the second request will be sent off but when the
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response is to get read, the previous response-body is what curl will read
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and havoc is what happens.
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More details on this is found in this libcurl mailing list thread:
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http://curl.haxx.se/mail/lib-2002-08/0000.html
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