169 lines
8.6 KiB
Plaintext
169 lines
8.6 KiB
Plaintext
These are problems known to exist at the time of this release. Feel free to
|
|
join in and help us correct one or more of these! Also be sure to check the
|
|
changelog of the current development status, as one or more of these problems
|
|
may have been fixed since this was written!
|
|
|
|
47. If a CONNECT response is larger than BUFSIZE when the connection is meant
|
|
to be kept alive, the function will return prematurely and will confuse the
|
|
rest of the HTTP protocol code.
|
|
|
|
46. If a CONNECT response is chunked-encoded, the function may return
|
|
prematurely and will confuse the rest of the HTTP protocol code.
|
|
|
|
45. libcurl built to support ipv6 uses getaddrinfo() to resolve host names.
|
|
getaddrinfo() sorts the response list which effectively kills how libcurl
|
|
deals with round-robin DNS entries. All details:
|
|
http://curl.haxx.se/mail/lib-2007-07/0168.html
|
|
initial suggested function to use for randomizing the response:
|
|
http://curl.haxx.se/mail/lib-2007-07/0178.html
|
|
|
|
44. --ftp-method nocwd does not handle URLs ending with a slash properly (it
|
|
should list the contents of that directory). See test case 351.
|
|
|
|
43. There seems to be a problem when connecting to the Microsoft telnet server.
|
|
http://curl.haxx.se/bug/view.cgi?id=1720605
|
|
|
|
41. When doing an operation over FTP that requires the ACCT command (but not
|
|
when logging in), the operation will fail since libcurl doesn't detect this
|
|
and thus fails to issue the correct command:
|
|
http://curl.haxx.se/bug/view.cgi?id=1693337
|
|
|
|
39. Steffen Rumler's Race Condition in Curl_proxyCONNECT:
|
|
http://curl.haxx.se/mail/lib-2007-01/0045.html
|
|
|
|
38. Kumar Swamy Bhatt's problem in ftp/ssl "LIST" operation:
|
|
http://curl.haxx.se/mail/lib-2007-01/0103.html
|
|
|
|
37. Having more than one connection to the same host when doing NTLM
|
|
authentication (with performs multiple "passes" and authenticates a
|
|
connection rather than a HTTP request), and particularly when using the
|
|
multi interface, there's a risk that libcurl will re-use a wrong connection
|
|
when doing the different passes in the NTLM negotiation and thus fail to
|
|
negotiate (in seemingly mysterious ways).
|
|
|
|
35. Both SOCKS5 and SOCKS4 proxy connections are done blocking, which is very
|
|
bad when used with the multi interface.
|
|
|
|
34. The SOCKS4 connection codes don't properly acknowledge (connect) timeouts.
|
|
Also see #12. According to bug #1556528, even the SOCKS5 connect code does
|
|
not do it right: http://curl.haxx.se/bug/view.cgi?id=1556528,
|
|
|
|
33. Doing multi-pass HTTP authentication on a non-default port does not work.
|
|
This happens because the multi-pass code abuses the redirect following code
|
|
for doing multiple requests, and when we following redirects to an absolute
|
|
URL we must use the newly specified port and not the one specified in the
|
|
original URL. A proper fix to this would need to separate the negotiation
|
|
"redirect" from an actual redirect.
|
|
|
|
32. (At least on Windows) If libcurl is built with c-ares and there's no DNS
|
|
server configured in the system, the ares_init() call fails and thus
|
|
curl_easy_init() fails as well. This causes weird effects for people who use
|
|
numerical IP addresses only.
|
|
|
|
31. "curl-config --libs" will include details set in LDFLAGS when configure is
|
|
run that might be needed only for building libcurl. Similarly, it might
|
|
include options that perhaps aren't suitable both for static and dynamic
|
|
linking. Further, curl-config --cflags suffers from the same effects with
|
|
CFLAGS/CPPFLAGS.
|
|
|
|
30. You need to use -g to the command line tool in order to use RFC2732-style
|
|
IPv6 numerical addresses in URLs.
|
|
|
|
29. IPv6 URLs with zone ID is not supported.
|
|
http://www.ietf.org/internet-drafts/draft-fenner-literal-zone-02.txt (expired)
|
|
specifies the use of a plus sign instead of a percent when specifying zone
|
|
IDs in URLs to get around the problem of percent signs being
|
|
special. According to the reporter, Firefox deals with the URL _with_ a
|
|
percent letter (which seems like a blatant URL spec violation).
|
|
|
|
See http://curl.haxx.se/bug/view.cgi?id=1371118
|
|
|
|
26. NTLM authentication using SSPI (on Windows) when (lib)curl is running in
|
|
"system context" will make it use wrong(?) user name - at least when compared
|
|
to what winhttp does. See http://curl.haxx.se/bug/view.cgi?id=1281867
|
|
|
|
23. SOCKS-related problems:
|
|
A) libcurl doesn't support SOCKS for IPv6.
|
|
B) libcurl doesn't support FTPS over a SOCKS proxy.
|
|
E) libcurl doesn't support active FTP over a SOCKS proxy
|
|
|
|
We probably have even more bugs and lack of features when a SOCKS proxy is
|
|
used.
|
|
|
|
22. Sending files to a FTP server using curl on VMS, might lead to curl
|
|
complaining on "unaligned file size" on completion. The problem is related
|
|
to VMS file structures and the perceived file sizes stat() returns. A
|
|
possible fix would involve sending a "STRU VMS" command.
|
|
http://curl.haxx.se/bug/view.cgi?id=1156287
|
|
|
|
21. FTP ASCII transfers do not follow RFC959. They don't convert the data
|
|
accordingly (not for sending nor for receiving). RFC 959 section 3.1.1.1
|
|
clearly describes how this should be done:
|
|
|
|
The sender converts the data from an internal character representation to
|
|
the standard 8-bit NVT-ASCII representation (see the Telnet
|
|
specification). The receiver will convert the data from the standard
|
|
form to his own internal form.
|
|
|
|
Since 7.15.4 at least line endings are converted.
|
|
|
|
16. FTP URLs passed to curl may contain NUL (0x00) in the RFC 1738 <user>,
|
|
<password>, and <fpath> components, encoded as "%00". The problem is that
|
|
curl_unescape does not detect this, but instead returns a shortened C
|
|
string. From a strict FTP protocol standpoint, NUL is a valid character
|
|
within RFC 959 <string>, so the way to handle this correctly in curl would
|
|
be to use a data structure other than a plain C string, one that can handle
|
|
embedded NUL characters. From a practical standpoint, most FTP servers
|
|
would not meaningfully support NUL characters within RFC 959 <string>,
|
|
anyway (e.g., UNIX pathnames may not contain NUL).
|
|
|
|
14. Test case 165 might fail on system which has libidn present, but with an
|
|
old iconv version (2.1.3 is a known bad version), since it doesn't recognize
|
|
the charset when named ISO8859-1. Changing the name to ISO-8859-1 makes the
|
|
test pass, but instead makes it fail on Solaris hosts that use its native
|
|
iconv.
|
|
|
|
13. curl version 7.12.2 fails on AIX if compiled with --enable-ares.
|
|
The workaround is to combine --enable-ares with --disable-shared
|
|
|
|
12. When connecting to a SOCKS proxy, the (connect) timeout is not properly
|
|
acknowledged after the actual TCP connect (during the SOCKS "negotiate"
|
|
phase).
|
|
|
|
10. To get HTTP Negotiate authentication to work fine, you need to provide a
|
|
(fake) user name (this concerns both curl and the lib) because the code
|
|
wrongly only considers authentication if there's a user name provided.
|
|
http://curl.haxx.se/bug/view.cgi?id=1004841. How?
|
|
http://curl.haxx.se/mail/lib-2004-08/0182.html
|
|
|
|
8. Doing resumed upload over HTTP does not work with '-C -', because curl
|
|
doesn't do a HEAD first to get the initial size. This needs to be done
|
|
manually for HTTP PUT resume to work, and then '-C [index]'.
|
|
|
|
7. CURLOPT_USERPWD and CURLOPT_PROXYUSERPWD have no way of providing user names
|
|
that contain a colon. This can't be fixed easily in a backwards compatible
|
|
way without adding new options (and then, they should most probably allow
|
|
setting user name and password separately).
|
|
|
|
6. libcurl ignores empty path parts in FTP URLs, whereas RFC1738 states that
|
|
such parts should be sent to the server as 'CWD ' (without an argument).
|
|
The only exception to this rule, is that we knowingly break this if the
|
|
empty part is first in the path, as then we use the double slashes to
|
|
indicate that the user wants to reach the root dir (this exception SHALL
|
|
remain even when this bug is fixed).
|
|
|
|
5. libcurl doesn't treat the content-length of compressed data properly, as
|
|
it seems HTTP servers send the *uncompressed* length in that header and
|
|
libcurl thinks of it as the *compressed* length. Some explanations are here:
|
|
http://curl.haxx.se/mail/lib-2003-06/0146.html
|
|
|
|
2. If a HTTP server responds to a HEAD request and includes a body (thus
|
|
violating the RFC2616), curl won't wait to read the response but just stop
|
|
reading and return back. If a second request (let's assume a GET) is then
|
|
immediately made to the same server again, the connection will be re-used
|
|
fine of course, and the second request will be sent off but when the
|
|
response is to get read, the previous response-body is what curl will read
|
|
and havoc is what happens.
|
|
More details on this is found in this libcurl mailing list thread:
|
|
http://curl.haxx.se/mail/lib-2002-08/0000.html
|