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Daniel Stenberg 已提交
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Daniel Stenberg 已提交

Daniel Stenberg (14 May 2010)
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- John-Mark Bell filed bug #3000052 that identified a problem (with an
  associated patch) with the OpenSSL handshake state machine when the multi
  interface is used:

  Performing an https request using a curl multi handle and using select or
  epoll to wait for events results in a hang. It appears that the cause is the
  fix for bug #2958179, which makes ossl_connect_common unconditionally return
  from the step 2 loop when fetching from a multi handle.

  When ossl_connect_step2 has completed, it updates connssl->connecting_state
  to ssl_connect_3. ossl_connect_common will then return to the caller, as a
  multi handle is in use. Eventually, the client code will call
  curl_multi_fdset to obtain an updated fdset to select or epoll on. For https
  requests, curl_multi_fdset will cause https_getsock to be called.
  https_getsock will only return a socket handle if the connecting_state is
  ssl_connect_2_reading or ssl_connect_2_writing.  Therefore, the client will
  never obtain a valid fdset, and thus not drive the multi handle, resulting
  in a hang.


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- Sebastian V reported bug #3000056 identifying a problem with redirect
  following. It showed that when curl followed redirects it didn't properly
  ignore the response body of the 30X response if that response was using
  compressed Content-Encoding!
35 36

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Daniel Stenberg (12 May 2010)
- Howard Chu brought support for RTMP. This is powered by the underlying
  librtmp library. It supports a range of variations and "sub-protocols"
  within the RTMP family.

- Pavel Raiskup brought support for FTP directory wildcard matching to allow
  selective downloading. To provide that, a set of new options were added:


  There were also a set of new tests added (574 - 577) to verify this.

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Kamil Dudka (11 May 2010)
- CRL support in libcurl-NSS has been completely broken. Now it works. Original
  bug report:

Daniel Stenberg (7 May 2010)
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- Dirk Manske reported a regression. When connecting with the multi interface,
  there were situations where libcurl wouldn't store connect time correctly as
  it used to (and is documented to) do.

  Using his fine sample program we could repeat it, and I wrote up test case
  573 using that code. The problem does not easily show itself using the local
  test suite though.

  The fix, also as suggested by Dirk, is a bit on the ugly side as it adds yet
  another call to Curl_verboseconnect() and setting the TIMER_CONNECT time.
  That situation is subject for some closer inspection in the future.

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- Howard Chu split the I/O handling functions into private handlers.
  Howard Chu brought the bulk work of this patch that properly moves out the
  sending and recving of data to the parts of the code that are properly
  responsible for the various ways of doing so.
  Daniel Stenberg assisted with polishing a few bits and fixed some minor
  flaws in the original patch.
  Another upside of this patch is that we now abuse CURLcodes less with the
  "magic" -1 return codes and instead use CURLE_AGAIN more consistently.

Daniel Stenberg 已提交
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Daniel Stenberg (5 May 2010)
- Hoi-Ho Chan introduced support for using the PolarSSL library. You control
  this with the new configure option --with-polarssl.

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Daniel Stenberg (29 Apr 2010)
- Ben Greear made telnet a lot better/easier to use by an application:

  The main change is to allow input from user-specified methods, when they are
  specified with CURLOPT_READFUNCTION.  All calls to fflush(stdout) in
  telnet.c were removed, which makes using 'curl telnet://' painful
  since prompts and other data are not always returned to the user promptly.
  Use 'curl --no-buffer telnet://' instead.  In general, the user
  should have their CURLOPT_WRITEFUNCTION do a fflush for interactive use.

  Also fix assumption that reading from stdin never returns < 0.
  Old code could crash in that case.

  Call progress functions in telnet main loop.

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Daniel Stenberg (26 Apr 2010)
- Make use of the libssh2_init/exit functions that libssh2 added in version
  1.2.5. Using them will improve how libcurl works in threaded situations when
  SCP and SFTP are transfered.

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Daniel Stenberg (25 Apr 2010)
- Based on work by Kamil Dudka, I've introduced the new configure option
  --enable-threaded-resolver. When used, the configure script will check for
  pthreads and if around, it will build libcurl to use pthreads to do name
  resolving in a threaded manner. Note that this is just a fix to offer an
  option that can enable the code that already included. The threader resolver
  code was mostly added on Jan 26 2010.

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Daniel Stenberg (24 Apr 2010)
- Alex Bligh introduced the --proto and -proto-redir options that limit what
  protocols curl accepts for the requests and when following redirects.

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Kamil Dudka (24 Apr 2010)
- Fixed test536 in order to not fail with threaded DNS resolver and tweaked
  comments in certain examples using curl_multi_fdset().

123 124 125
- Fixed SSL handshake timeout underflow in libcurl-NSS, which caused test405
  to hang on a slow machine.

Daniel Stenberg 已提交
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Daniel Stenberg (21 Apr 2010)
- The -O option caused curl to crash on windows and DOS due to the tool
  writing out of boundary memory.

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Yang Tse (20 Apr 2010)
- Ruslan Gazizov detected that MSVC makefiles were using wsock32.lib instead
  of ws2_32.lib, this generated linking issues on MSVC IPv6 enabled builds
  that were done using those makefiles.

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Daniel Stenberg (19 Apr 2010)
- -J/--remote-header-name didn't strip trailing carriage returns or linefeeds
  properly, so they could be used in the file name.

Daniel Stenberg (16 Apr 2010)
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- Jerome Vouillon made the GnuTLS SSL handshake phase non-blocking.

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- The recent overhaul of the SSL recv function made the GnuTLS specific code
  treat a zero returned from gnutls_record_recv() as an error, and this caused
  our HTTPS test cases to fail. We leave it to upper layer code to detect if
  an EOF is a problem or not.

- I reverted the resolver fix from yesterday and instead removed all uses of
  AI_CANONNAME all over libcurl and made the only user of that info (krb5.c)
  use the host name from the URL instead. No reverse resolving is a good

- Paul Howarth made configure properly detect GSS "on ancient Linux distros"
  by editing in which order we use headers to detect GSS.

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Daniel Stenberg (15 Apr 2010)
- Rainer Canavan filed bug report #2987196 that identified libcurl doing
  unnecesary reverse name lookups in many cases when built to use IPv4 and
  getaddrinfo(). The logic for ipv6 is now used for ipv4 too.


Daniel Stenberg 已提交
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Version 7.20.1 (14 April 2010)

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Daniel Stenberg (9 Apr 2010)
- Prefixing the FTP quote commands with an asterisk really only worked for the
  postquote actions. This is now fixed and test case 227 has been extended to

169 170 171
Kamil Dudka (4 Apr 2010)
- Eliminated a race condition in Curl_resolv_timeout().

172 173
- Refactorized interface of Curl_ssl_recv()/Curl_ssl_send().

174 175 176
- libcurl-NSS now provides more accurate messages and error codes in case of
  client certificate problem.  Either during connection, or transfer phase.

Daniel Stenberg 已提交
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Daniel Stenberg (1 Apr 2010)
- Matt Wixson found and fixed a bug in the SCP/SFTP area where the code
  treated a 0 return code from libssh2 to be the same as EAGAIN while in
  reality it isn't. The problem caused a hang in SFTP transfers from a
  MessageWay server.

Daniel Stenberg 已提交
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Daniel Stenberg (28 Mar 2010)
- Ben Greear: If you pass a URL to pop3 that does not contain a message ID as
  part of the URL, it would previously ask for 'INBOX' which just causes the
  pop3 server to return an error.
  Now libcurl treats en empty message ID as a request for LIST (list of pop3
  message IDs).  User's code could then parse this and download individual
  messages as desired.

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Daniel Stenberg (27 Mar 2010)
- Ben Greear brought a patch that from now on allows all protocols to specify
  name and user within the URL, in the same manner HTTP and FTP have been
  allowed to in the past - although far from all of the libcurl supported
  protocls actually have that feature in their URL definition spec.

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Daniel Stenberg (26 Mar 2010)
- Ben Greear brought code that makes the rate limiting code for the easy
  interface a bit smoother as it introduces sub-second sleeps during it and it
  also takes the buffer sizes into account.

Daniel Stenberg (24 Mar 2010)
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- Bob Richmond: There's an annoying situation where libcurl will read new HTTP
  response data from a socket, then check if it's a timeout if one is set. If
  the last packet received constitutes the end of the response body, libcurl
  still treats it as a timeout condition and reports a message like:

  "Operation timed out after 3000 milliseconds with 876 out of 876 bytes 

  It should only a timeout if the timer lapsed and we DIDN'T receive the end
  of the response body yet.

Daniel Stenberg 已提交
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- Christopher Conroy fixed a problem with RTSP and GET_PARAMETER reported
  to us by Massimo Callegari. There's a new test case 572 that verifies this

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- The 'ares' subtree has been removed from the source repository. It was
  always a separate project that sort of piggybacked on the curl project since
  the dawn of times and now the time has come for it to go stand on its own
  legs and continue living its own life. All details on c-ares and its new
  source code repository is found at

Daniel Stenberg (23 Mar 2010)
Daniel Stenberg 已提交
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- Kenny To filed the bug report #2963679 with patch to fix a problem he
  experienced with doing multi interface HTTP POST over a proxy using
  PROXYTUNNEL. He found a case where it would connect fine but bits.tcpconnect
  was not set correct so libcurl didn't work properly.


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- Akos Pasztory filed debian bug report #572276 mentioning a problem
  with a resource that returns chunked-encoded _and_ with a Content-Length
  and libcurl failed to properly ignore the latter information.

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- Hauke Duden provided an example program that made the multi interface crash.
  His example simply used the multi interface and did first one FTP transfer
  and after completion it used a second easy handle and did another FTP
  transfer on the same FTP server.

  This triggered a bug in the "delayed easy handle kill" system that curl
  uses: when an FTP connection is left alive it must keep an easy handle
  around internally - only for the purpose of having an easy handle when it
  later disconnects it. The code assumed that when the easy handle was removed
  and an internal reference was made, that version could be killed later on
  when a new easy handle came using the same connection. This was wrong as
  Hauke's example showed that the removed handle wasn't killed for real until
  later. This caused a double close attempt => segfault.

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Daniel Stenberg (22 Mar 2010)
- Thomas Lopatic fixed the alarm()-based DNS timeout:

  Looking at the code of Curl_resolv_timeout() in hostip.c, I think that in
  case of a timeout, the signal handler for SIGALRM never gets removed. I
  think that in my case it gets executed at some point later on when execution
  has long left Curl_resolv_timeout() or even the cURL library.
  The code that is jumped to with siglongjmp() simply sets the error message
  to "name lookup timed out" and then returns with CURLRESOLV_ERROR. I guess
  that instead of simply returning without cleaning up, the code should have a
  goto that jumps to the spot right after the call to Curl_resolv().

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Kamil Dudka (22 Mar 2010)
- Douglas Steinwand contributed a patch fixing insufficient initialization in

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Daniel Stenberg (21 Mar 2010)
- Ben Greear improved TFTP: the error code returning and the treatment
  of TSIZE == 0 when uploading.

Daniel Stenberg 已提交
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- We've switched from CVS to git. See

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Kamil Dudka (19 Mar 2010)
- Improved Curl_read() to not ignore the error returned from Curl_ssl_recv().

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Daniel Stenberg (15 Mar 2010)
- Constantine Sapuntzakis brought a patch:

  The problem mentioned on Dec 10 2009
  ( was only partially fixed.
  Partially because an easy handle can be associated with many connections in
  the cache (e.g. if there is a redirect during the lifetime of the easy
  handle).  The previous patch only cleaned up the first one. The new fix now
  removes the easy handle from all connections, not just the first one.

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Daniel Stenberg (6 Mar 2010)
- Ben Greear brought a patch that fixed the rate limiting logic for TFTP when
  the easy interface was used.

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Daniel Stenberg (5 Mar 2010)
- Daniel Johnson provided fixes for building curl with the clang compiler.

Yang Tse 已提交
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Yang Tse (5 Mar 2010)
- Constantine Sapuntzakis detected and fixed a double free in builds done
  with threaded resolver enabled (Windows default configuration) that would
  get triggered when a curl handle is closed while doing DNS resolution.

Daniel Stenberg (2 Mar 2010)
301 302 303 304 305 306 307 308 309 310 311 312 313 314
- [Daniel Johnson] I've been trying to build libcurl with clang on Darwin and
  ran into some issues with the GSSAPI tests in The tests first
  try to determine the include dirs and libs and set CPPFLAGS and LIBS
  accordingly. It then checks for the headers and finally sets LIBS a second
  time, causing the libs to be included twice. The first setting of LIBS seems
  redundant and should be left out, since the first part is otherwise just
  about finding headers.

  My second issue is that 'krb5-config --libs gssapi' on Darwin is less than
  useless and returns junk that, while it happens to work with gcc, causes
  clang to choke. For example, --libs returns $CFLAGS along with the libs,
  which is really retarded. Simply setting 'LIBS="$LIBS -lgssapi_krb5
  -lresolv"' on Darwin is sufficient.

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- Based on patch provided by Jacob Moshenko, the transfer logic now properly
  makes sure that when using sub-second timeouts, there's no final bad 1000ms
  wait. Previously, a sub-second timeout would often make the elapsed time end
  up the time rounded up to the nearest second (e.g. 1s for 200ms timeout)

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- Andrei Benea filed bug report #2956698 and pointed out that the
  CURLOPT_CERTINFO feature leaked memory due to a missing OpenSSL function
  call. He provided the patch to fix it too.

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- Markus Duft pointed out in bug #2961796 that even though Interix has a
  poll() function it doesn't quite work the way we want it so we must disable
  it, and he also provided a patch for it.

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- Made the pingpong timeout code properly deal with the response timeout AND
  the global timeout if set. Also, as was reported in the bug report #2956437
  by Ryan Chan, the time stamp to use as basis for the per command timeout was
  not set properly in the DONE phase for FTP (and not for SMTP) so I fixed
  that just now. This was a regression compared to 7.19.7 due to the
  conversion of FTP code over to the generic pingpong concepts.

Daniel Stenberg (1 Mar 2010)
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- Ben Greear provided an update for TFTP that fixes upload.

344 345 346 347 348 349
- Wesley Miaw reported bug #2958179 which identified a case of looping during
  OpenSSL based SSL handshaking even though the multi interface was used and
  there was no good reason for it.

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Daniel Stenberg (26 Feb 2010)
- Pat Ray in bug #2958474 pointed out an off-by-one case when receiving a
  chunked-encoding trailer.

Daniel Fandrich (25 Feb 2010)
- Fixed a couple of out of memory leaks and a segfault in the SMTP & IMAP code.

Yang Tse 已提交
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Yang Tse (25 Feb 2010)
- I fixed bug report #2958074 indicating
  ( that curl on Windows with
  option --trace-time did not use local time when timestamping trace lines.
  This could also happen on other systems depending on time souurce.

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Patrick Monnerat (22 Feb 2010)
- Proper handling of STARTTLS on SMTP, taking CURLUSESSL_TRY into account.
- SMTP falls back to RFC821 HELO when EHLO fails (and SSL is not required).
- Use of true local host name (i.e.: via gethostname()) when available, as
  default argument to SMTP HELO/EHLO.
- Test case 804 for HELO fallback.

Daniel Stenberg (20 Feb 2010)
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- Fixed the SMTP compliance by making sure RCPT TO addresses are specified
  properly in angle brackets. Recipients provided with CURLOPT_MAIL_RCPT now
  get angle bracket wrapping automatically by libcurl unless the recipient
  starts with an angle bracket as then the app is assumed to deal with that
  properly on its own.

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- I made the SMTP code expect a 250 response back from the server after the
  full DATA has been sent, and I modified the test SMTP server to also send
  that response. As usual, the DONE operation that is made after a completed
  transfer is still not doable in a non-blocking way so this waiting for 250
  is unfortunately made blockingly.

Yang Tse 已提交
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Yang Tse (14 Feb 2010)
- Overhauled test suite getpart() function. Fixing potential out of bounds
  stack and memory overwrites triggered with huge test case definitions.

Daniel Stenberg (13 Feb 2010)
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- Martin Hager reported and fixed a problem with a missing quote in libcurl.m4

Yang Tse 已提交

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- Tom Donovan fixed the CURL_FORMAT_* defines when building with cmake.

396 397

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Daniel Stenberg (12 Feb 2010)
- Jack Zhang reported a problem with SMTP: we wrongly used multiple addresses
  in the same RCPT TO line, when they should be sent in separate single
  commands. I updated test case 802 to verify this.

- I also fixed a bad use of my_setopt_str() of CURLOPT_MAIL_RCPT in the curl
  tool which made it try to output it as string for the --libcurl feature
  which could lead to crashes.

Yang Tse 已提交
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Yang Tse (11 Feb 2010)
- Steven M. Schweda fixed VMS builder bad behavior when used in a batch job,
  removed obsolete and and updated VMS readme.

Daniel Stenberg 已提交
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Version 7.20.0 (9 February 2010)

Daniel Stenberg (9 Feb 2010)
Daniel Stenberg 已提交
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- When downloading compressed content over HTTP and the app asked libcurl to
  automatically uncompress it with the CURLOPT_ENCODING option, libcurl could
  wrongly provide the callback with more data than the maximum documented
  amount. An application could thus get tricked into badness if the maximum
  limit was trusted to be enforced by libcurl itself (as it is documented).
419 420 421 422 423 424

  This is further detailed and explained in the libcurl security advisory
  20100209 at

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Daniel Fandrich (3 Feb 2010)
- Changed the Watcom makefiles to make them easier to keep in sync with since that can't be included directly.

Yang Tse 已提交
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Yang Tse (2 Feb 2010)
- Symbol CURL_FORMAT_OFF_T now obsoleted, will be removed in a future release,
  symbol will not be available when building with CURL_NO_OLDIES defined. Use
  of CURL_FORMAT_CURL_OFF_T is preferred since 7.19.0

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Daniel Stenberg (1 Feb 2010)
- Using the multi_socket API, it turns out at times it seemed to "forget"
  connections (which caused a hang). It turned out to be an existing (7.19.7)
  bug in libcurl (that's been around for a long time) and it happened like

  The app calls curl_multi_add_handle() to add a new easy handle, libcurl will
  then set it to timeout in 1 millisecond so libcurl will tell the app about

  The app's timeout fires off that there's a timeout, the app calls libcurl as
  we so often document it:

  do {
   res = curl_multi_socket_action(... TIMEOUT ...);
  } while(CURLM_CALL_MULTI_PERFORM == res);

  And this is the problem number one:

  When curl_multi_socket_action() is called with no specific handle, but only
  a timeout-action, it will *only* perform actions within libcurl that are
  marked to run at this time. In this case, the request would go from INIT to
  CONNECT and return CURLM_CALL_MULTI_PERFORM. When the app then calls libcurl
  again, there's no timer set for this handle so it remains in the CONNECT
  state. The CONNECT state is a transitional state in libcurl so it reports no
  sockets there, and thus libcurl never tells the app anything more about that
  easy handle/connection.

  libcurl _does_ set a 1ms timeout for the handle at the end of
  multi_runsingle() if it returns CURLM_CALL_MULTI_PERFORM, but since the loop
  is instant the new job is not ready to run at that point (and there's no
  code that makes libcurl call the app to update the timout for this new
  timeout). It will simply rely on that some other timeout will trigger later
  on or that something else will update the timeout callback. This makes the
  bug fairly hard to repeat.

  The fix made to adress this issue:

  We introduce a loop in lib/multi.c around all calls to multi_runsingle() and
  simply check for CURLM_CALL_MULTI_PERFORM internally. This has the added
  benefit that this goes in line with my long-term wishes to get rid of the
  CURLM_CALL_MULTI_PERFORM all together from the public API.

  The downside of this fix, is that the counter we return in 'running_handles'
  in several of our public functions then gets a slightly new and possibly
  confusing behavior during times:

  If an app adds a handle that fails to connect (very quickly) it may just
  as well never appear as a 'running_handle' with this fix. Previously it
  would first bump the counter only to get it decreased again at next call.
  Even I have used that change in handle counter to signal "end of a
  transfer". The only *good* way to find the end of a individual transfer
  is calling curl_multi_info_read() to see if it returns one.

  Of course, if the app previously did the looping before it checked the
  counter, it really shouldn't be any new effect.

Yang Tse 已提交
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Yang Tse (26 Jan 2010)
- Constantine Sapuntzakis' and Joshua Kwan's work done in the last four months
  relative to the asynchronous DNS lookups, along with with some integration
  adjustments I have done are finally committed to CVS.

  Currently these enhancements will benefit builds done using c-ares on any
  platform as well as Windows builds using the default threaded resolver.

  This release does not make generally available POSIX threaded DNS lookups
  yet. There is no configure option to enable this feature yet. It is possible
  to experimantally try this feature running configure with compiler flags that
  make simultaneous definition of preprocessor symbols USE_THREADS_POSIX and
  HAVE_PTHREAD_H, as well as whatever reentrancy compiler flags and linker ones
  are required to link and properly use pthread_* functions on each platform.

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Daniel Stenberg (26 Jan 2010)
- Mike Crowe made libcurl return CURLE_COULDNT_RESOLVE_PROXY when it is the
  proxy that cannot be resolved when using c-ares. This matches the behaviour
  when not using c-ares.

Bjorn Stenberg 已提交
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Björn Stenberg (23 Jan 2010)
- Added a new flag: -J/--remote-header-name. This option tells the
  -O/--remote-name option to use the server-specified Content-Disposition
  filename instead of extracting a filename from the URL.

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Daniel Stenberg (21 Jan 2010)
- Chris Conroy brought support for RTSP transfers, and with it comes 8(!) new
  libcurl options for controlling what to get and how to receive posssibly
  interleaved RTP data.

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Daniel Stenberg (20 Jan 2010)
- As was pointed out on the http-state mailing list, the order of cookies in a
  HTTP Cookie: header _needs_ to be sorted on the path length in the cases
  where two cookies using the same name are set more than once using
  (overlapping) paths. Realizing this, identically named cookies must be
  sorted correctly. But detecting only identically named cookies and take care
  of them individually is harder than just to blindly and unconditionally sort
  all cookies based on their path lengths. All major browsers also already do
  this, so this makes our behavior one step closer to them in the cookie area.

  Test case 8 was the only one that broke due to this change and I updated it

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Daniel Stenberg (19 Jan 2010)
- David McCreedy brought a fix and a new test case (129) to make libcurl work
  again when downloading files over FTP using ASCII and it turns out that the
  final size of the file is not the same as the initial size the server
  reported. This is very common since servers don't take the newline
  conversions into account.

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Kamil Dudka (14 Jan 2010)
- Suppressed side effect of OpenSSL configure checks, which prevented NSS from
  being properly detected under certain circumstances. It had been caused by
  strange behavior of pkg-config when handling PKG_CONFIG_LIBDIR. pkg-config
  distinguishes among empty and non-existent environment variable in that case.

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Daniel Stenberg (12 Jan 2010)
- Gil Weber reported a peculiar flaw with the multi interface when doing SFTP
  transfers: curl_multi_fdset() would return -1 and not set and file
  descriptors several times during a transfer of a single file. It turned out
  to be due to two different flaws now fixed. Gil's excellent recipe helped me
  nail this.

Daniel Stenberg (11 Jan 2010)
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- Made sure that the progress callback is repeatedly called at a regular
  interval even during very slow connects.

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- The tests/ script now checks to see if the test case that runs is
  present in the tests/data/ and outputs a notice message on the
  screen if not. Each test file has to be included in that to get
  included in release archives and forgetting to add files there is a common
  mistake. This is an attempt to make it harder to forget.

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Daniel Stenberg (9 Jan 2010)
- Johan van Selst found and fixed a OpenSSL session ref count leak:

  ossl_connect_step3() increments an SSL session handle reference counter on
  each call. When sessions are re-used this reference counter may be
  incremented many times, but it will be decremented only once when done (by
  Curl_ossl_session_free()); and the internal OpenSSL data will not be freed
  if this reference count remains positive. When a session is re-used the
  reference counter should be corrected by explicitly calling
  SSL_SESSION_free() after each consecutive SSL_get1_session() to avoid
  introducing a memory leak.


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Daniel Stenberg (7 Jan 2010)
- Make sure the progress callback is called repeatedly even during very slow
  name resolves when c-ares is used for resolving.

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Claes Jakobsson (6 Jan 2010)
- Julien Chaffraix fixed so that the fragment part in an URL is not sent
  to the server anymore.

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Kamil Dudka (3 Jan 2010)
- Julien Chaffraix eliminated a duplicated initialization in singlesocket().

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Daniel Stenberg (2 Jan 2010)
- Make curl support --ssl and --ssl-reqd instead of the previous FTP-specific
  versions --ftp-ssl and --ftp-ssl-reqd as these options are now used to
  control SSL/TLS for IMAP, POP3 and SMTP as well in addition to FTP. The old
  option names are still working but the new ones are the ones listed and

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Daniel Stenberg (1 Jan 2010)
- Ingmar Runge enhanced libcurl's FTP engine to support the PRET command. This
  command is a special "hack" used by the drftpd server, but even though it is
  a custom extension I've deemed it fine to add to libcurl since this server
  seems to survive and people keep using it and want libcurl to support
  it. The new libcurl option is named CURLOPT_FTP_USE_PRET, and it is also
  usable from the curl tool with --ftp-pret. Using this option on a server
  that doesn't support this command will make libcurl fail.

  I added test cases 1107 and 1108 to verify the functionality.

  The PRET command is documented at

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Yang Tse (30 Dec 2009)
- Steven M. Schweda improved VMS build system, and Craig A. Berry helped
  with the patch and testing.

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Daniel Stenberg (26 Dec 2009)
- Renato Botelho and Peter Pentchev brought a patch that makes the libcurl
  headers work correctly even on FreeBSD systems before v8.

Daniel Stenberg 已提交
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Daniel Stenberg (17 Dec 2009)
621 622
- David Byron fixed Curl_ossl_cleanup to actually call ENGINE_cleanup when
Yang Tse 已提交

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- Follow-up fix for the proxy fix I did for Jon Nelson's bug. It turned out I
  was a bit too quick and broke test case 1101 with that change. The order of
  some of the setups is sensitive. I now changed it slightly again to make
  sure we do them in this order:

  1 - parse URL and figure out what protocol is used in the URL
  2 - prepend protocol:// to URL if missing
  3 - parse name+password off URL, which needs to know what protocol is used
      (since only some allows for name+password in the URL)
  4 - figure out if a proxy should be used set by an option
  5 - if no proxy option, check proxy environment variables
  6 - run the protocol-specific setup function, which needs to have the proxy
      already set

638 639 640 641 642 643 644 645 646 647
Daniel Stenberg (15 Dec 2009)
- Jon Nelson found a regression that turned out to be a flaw in how libcurl
  detects and uses proxies based on the environment variables. If the proxy
  was given as an explicit option it worked, but due to the setup order
  mistake proxies would not be used fine for a few protocols when picked up
  from '[protocol]_proxy'. Obviously this broke after 7.19.4. I now also added
  test case 1106 that verifies this functionality.


Daniel Stenberg 已提交
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Daniel Stenberg (12 Dec 2009)
- IMAP, POP3 and SMTP support and their TLS versions (including IMAPS, POP3S
  and SMTPS) are now supported. The current state may not yet be solid, but
  the foundation is in place and the test suite has some initial support for
  these protocols. Work will now persue to make them nice libcurl citizens
  until release.

  The work with supporting these new protocols was sponsored by - thanks!

Daniel Stenberg (10 Dec 2009)
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- Siegfried Gyuricsko found out that the curl manual said --retry would retry
  on FTP errors in the transient 5xx range. Transient FTP errors are in the
  4xx range. The code itself only tried on 5xx errors that occured _at login_.
  Now the retry code retries on all FTP transfer failures that ended with a
  4xx response.


667 668 669 670 671
- Constantine Sapuntzakis figured out a case which would lead to libcurl
  accessing alredy freed memory and thus crash when using HTTPS (with
  OpenSSL), multi interface and the CURLOPT_DEBUGFUNCTION and a certain order
  of cleaning things up. I fixed it.

Daniel Stenberg 已提交

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Daniel Stenberg (7 Dec 2009)
- Martin Storsjo made libcurl use the Expect: 100-continue header for posts
  with unknown size. Previously it was only used for posts with a known size
  larger than 1024 bytes.

679 680 681 682 683 684
Daniel Stenberg (1 Dec 2009)
- If the Expect: 100-continue header has been set by the application through
  curl_easy_setopt with CURLOPT_HTTPHEADER, the library should set
  data->state.expect100header accordingly - the current code (in 7.19.7 at
  least) doesn't handle this properly. Martin Storsjo provided the fix!

Yang Tse 已提交
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Yang Tse (28 Nov 2009)
- Added Diffie-Hellman parameters to several test harness certificate files in
  PEM format. Required by several stunnel versions used by our test harness.

689 690 691 692 693 694 695 696
Daniel Stenberg (28 Nov 2009)
- Markus Koetter provided a polished and updated version of Chad Monroe's TFTP
  rework patch that now integrates TFTP properly into libcurl so that it can
  be used non-blocking with the multi interface and more. BLKSIZE also works.

  The --tftp-blksize option was added to allow setting the TFTP BLKSIZE from
  the command line.

Daniel Stenberg (26 Nov 2009)
698 699 700 701
- Extended and fixed the change I did on Dec 11 for the the progress
  meter/callback during FTP command/response sequences. It turned out it was
  really lame before and now the progress meter SHOULD get called at least
  once per second.

703 704 705 706 707 708 709
Daniel Stenberg (23 Nov 2009)
- Bjorn Augustsson reported a bug which made curl not report any problems even
  though it failed to write a very small download to disk (done in a single
  fwrite call). It turned out to be because fwrite() returned success, but
  there was insufficient error-checking for the fclose() call which tricked
  curl to believe things were fine.

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Yang Tse (23 Nov 2009)
- David Byron modified Makefile.dist vc8 and vc9 targets in order to allow
  finer granularity control when generating src and lib makefiles.

Yang Tse (22 Nov 2009)
- I modified configure to force removal of the curlbuild.h file included in
  distribution tarballs for use by non-configure systems. As intended, this
  would get overwriten when doing in-tree builds. But VPATH builds would end
  having two curlbuild.h files, one in the source tree and another in the
  build tree. With the modification I introduced 5 Nov 2009 this could become
  an issue when running libcurl's test suite.

Daniel Stenberg (20 Nov 2009)
723 724 725 726
- Constantine Sapuntzakis identified a write after close, as the sockets were
  closed by libcurl before the SSL lib were shutdown and they may write to its
  socket. Detected to at least happen with OpenSSL builds.

727 728 729 730 731
- Jad Chamcham pointed out a bug with connection re-use. If a connection had
  CURLOPT_HTTPPROXYTUNNEL enabled over a proxy, a subsequent request using the
  same proxy with the tunnel option disabled would still wrongly re-use that
  previous connection and the outcome would only be badness.

732 733 734 735
Yang Tse (18 Nov 2009)
- I modified the memory tracking system to make it intolerant with zero sized
  malloc(), calloc() and realloc() function calls.

Daniel Stenberg (17 Nov 2009)
737 738 739 740 741 742 743 744 745 746 747 748
- Constantine Sapuntzakis provided another fix for the DNS cache that could
  end up with entries that wouldn't time-out:

  1. Set up a first web server that redirects (307) to a http://server:port
     that's down
  2. Have curl connect to the first web server using curl multi

  After the curl_easy_cleanup call, there will be curl dns entries hanging
  around with in_use != 0.


749 750 751 752 753
- Marc Kleine-Budde fixed: curl saved the LDFLAGS set during configure into
  its pkg-config file.  So -Wl stuff ended up in the .pc file, which is really
  bad, and breaks if there are multiple -Wl in our LDFLAGS (which are in
  PTXdist). bug #2893592 (

754 755 756 757 758
Kamil Dudka (15 Nov 2009)
- David Byron improved the configure script to use pkg-config to find OpenSSL
  (and in particular the list of required libraries) even if a path is given
  as argument to --with-ssl

Yang Tse 已提交
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Yang Tse (15 Nov 2009)
- I removed enable-thread / disable-thread configure option. These were only
  placebo options. The library is always built as thread safe as possible on
  every system.

764 765 766
Claes Jakobsson (14 Nov 2009)
- curl-config now accepts '--configure' to see what arguments was
  passed to the configure script when building curl.

Daniel Stenberg (14 Nov 2009)
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- Claes Jakobsson restored the configure functionality to detect NSS when
  --with-nss is set but not "yes".

  I think we can still improve that to check for pkg-config in that path etc,
  but at least this patch brings back the same functionality we had before.

775 776 777 778 779
- Camille Moncelier added support for the file type SSL_FILETYPE_ENGINE for
  the client certificate. It also disable the key name test as some engines
  can select a private key/cert automatically (When there is only one key
  and/or certificate on the hardware device used by the engine)

Yang Tse 已提交
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Yang Tse (14 Nov 2009)
- Constantine Sapuntzakis provided the fix that ensures that an SSL connection
  won't be reused unless protection level for peer and host verification match.

Yang Tse 已提交
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  I refactored how preprocessor symbol _THREAD_SAFE definition is done.

786 787 788 789 790 791
Kamil Dudka (12 Nov 2009)
- Kevin Baughman provided a fix preventing libcurl-NSS from crash on doubly
  closed NSPR descriptor. The issue was hard to find, reported several times
  before and always closed unresolved. More info at the RH bug:

792 793 794 795 796 797 798
- libcurl-NSS now tries to reconnect with TLS disabled in case it detects
  a broken TLS server. However it does not happen if SSL version is selected
  manually. The approach was originally taken from PSM. Kaspar Brand helped me
  to complete the patch. Original bug reports:

799 800 801 802
Yang Tse (12 Nov 2009)
- I modified configure script to make the getaddrinfo function check also
  verify if the function is thread safe.

803 804 805 806 807
Yang Tse (11 Nov 2009)
- Marco Maggi reported that compilation failed when configured --with-gssapi
  and GNU GSS installed due to a missing mutual exclusion of header files in
  the Kerberos 5 code path. He also verified that my patch worked for him.

Daniel Stenberg (11 Nov 2009)
809 810 811 812 813
- Constantine Sapuntzakis posted bug #2891595
  ( which identified how an entry
  in the DNS cache would linger too long if the request that added it was in
  use that long. He also provided the patch that now makes libcurl capable of
  still doing a request while the DNS hash entry may get timed out.
Yang Tse 已提交

815 816 817 818 819
- Christian Schmitz noticed that the progress meter/callback was not properly
  used during the FTP connection phase (after the actual TCP connect), while
  it of course should be. I also made the speed check get called correctly so
  that really slow servers will trigger that properly too.

820 821 822 823
Kamil Dudka (5 Nov 2009)
- Dropped misleading timeouts in libcurl-NSS and made sure the SSL socket works
  in non-blocking mode.

824 825 826 827 828
Yang Tse (5 Nov 2009)
- I removed leading 'curl' path on the 'curlbuild.h' include statement in
  curl.h, adjusting auto-makefiles include path, to enhance portability to
  OS's without an orthogonal directory tree structure such as OS/400.

829 830 831 832 833 834 835
Daniel Stenberg (4 Nov 2009)
- I fixed several problems with the transfer progress meter. It showed the
  wrong percentage for small files, most notable for <1000 bytes and could
  easily end up showing more than 100% at the end. It also didn't show any
  percentage, transfer size or estimated transfer times when transferring
  less than 100 bytes.

Daniel Stenberg 已提交
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Version 7.19.7 (4 November 2009)

838 839 840 841 842
Daniel Stenberg (2 Nov 2009)
- As reported independent by both Stan van de Burgt and Didier Brisebourg,
  CURLINFO_SIZE_DOWNLOAD (the -w variable size_download) didn't work when
  getting data from ldap!

843 844 845 846 847
Daniel Stenberg (31 Oct 2009)
- Gabriel Kuri reported a problem with CURLINFO_CONTENT_LENGTH_DOWNLOAD if the
  download was 0 bytes, as libcurl would then return the size as unknown (-1)
  and not 0. I wrote a fix and test case 566 to verify it.

Daniel Stenberg (30 Oct 2009)
849 850 851 852 853
- Liza Alenchery mentioned a problem with re-used SCP connection when a bad
  auth is used, as it caused a crash. I failed to repeat the issue, but still
  made a change that now forces the TCP connection used for a freed SCP
  session to get closed and not be re-used.

854 855 856 857 858 859
- "Tom" posted a bug report that mentioned how libcurl did wrong when doing a
  POST using a read callback, with Digest authentication and
  "Transfer-Encoding: chunked" enforced.  I would then cause the first request
  to be wrongly sent and then basically hang until the server closed the
  connection. I fixed the problem and added test case 565 to verify it.

860 861 862 863 864 865 866
Daniel Stenberg (25 Oct 2009)
- Dima Barsky made the curl cookie parser accept cookies even with blank or
  unparsable expiry dates and then treat them as session cookies - previously
  libcurl would reject cookies with a date format it couldn't parse. Research
  shows that the major browser treat such cookies as session cookies. I
  modified test 8 and 31 to verify this.

Daniel Stenberg (21 Oct 2009)
868 869 870
- Attempt to use pkg-config for finding out libssh2 installation details
  during configure.

- A patch in bug report #2883177 (
Daniel Stenberg 已提交
  by Johan van Selst introduced the --crlfile option to curl, which makes curl
873 874 875
  tell libcurl about a file with CRL (certificate revocation list) data to

Daniel Stenberg (18 Oct 2009)
877 878 879 880 881
- Ray Dassen provided a patch in Debian's bug tracker (bug number #551461)
  that now makes curl_getdate(3) actually handles RFC 822 formatted dates that
  use the "single letter military timezones". has the details.

882 883 884
- Fixed memory leak in the SCP/SFTP code as it never freed the knownhosts

885 886 887 888 889 890
- John Dennis filed bug report #2873666
  ( which identified a problem
  which made libcurl loop infinitely when given incorrect credentials when
  using HTTP GSS negotiate authentication. He also provided a small and simple
  patch for it.

891 892 893 894
- Kevin Baughman found a double close() problem with libcurl-NSS, as when
  libcurl called NSS to close the SSL "session" it also closed the actual

Yang Tse 已提交
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Yang Tse (17 Oct 2009)
- Bug report #2866724 indicated
  ( that curl on Windows failed
  when writing files whose file names originally contained characters which
  are not valid for file names on Windows. Dan Fandrich provided an initial
  patch and another revised one to fix this issue.

Daniel Stenberg (1 Oct 2009)
903 904 905 906 907 908
- Tom Mueller correctly reported in bug report #2870221
  ( that libcurl returned an
  incorrect return code from the internal trynextip() function which caused
  him grief. This is a regression that was introduced in 7.19.1 and I find it
  strange it hasn't hit us harder, but I won't persue into figuring out
  exactly why.
Yang Tse 已提交

910 911 912 913 914 915
- Constantine Sapuntzakis: The current implementation will always set
  SO_SNDBUF to CURL_WRITE_SIZE even if the SO_SNDBUF starts out larger.  The
  patch doesn't do a setsockopt if SO_SNDBUF is already greater than
  CURL_WRITE_SIZE. This should help folks who have set up their computer with
  large send buffers.

916 917 918 919 920 921 922 923 924 925
Daniel Stenberg (27 Sep 2009)
- I introduced a maximum limit for received HTTP headers. It is controlled by
  the define CURL_MAX_HTTP_HEADER which is even exposed in the public header
  file to allow for users to fairly easy rebuild libcurl with a modified
  limit. The rationale for a fixed limit is that libcurl is realloc()ing a
  buffer to be able to put a full header into it, so that it can call the
  header callback with the entire header, but that also risk getting it into
  trouble if a server by mistake or willingly sends a header that is more or
  less without an end. The limit is set to 100K.

926 927 928 929 930 931
Daniel Stenberg (26 Sep 2009)
- John P. McCaskey posted a bug report that showed how libcurl did wrong when
  saving received cookies with no given path, if the path in the request had a
  query part. That is means a question mark (?) and characters on the right
  side of that. I wrote test case 1105 and fixed this problem.

932 933 934 935 936 937
Kamil Dudka (26 Sep 2009)
- Implemented a protocol independent way to specify blocking direction, used by
  transfer.c for blocking. It is currently used only by SCP and SFTP protocols.
  This enhancement resolves an issue with 100% CPU usage during SFTP upload,
  reported by Vourhey.

938 939 940 941 942
Daniel Stenberg (25 Sep 2009)
- Chris Mumford filed bug report #2861587
  ( identifying that libcurl used
  the OpenSSL function X509_load_crl_file() wrongly and failed if it would
  load a CRL file with more than one certificate within. This is now fixed.
Yang Tse 已提交

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Daniel Stenberg (16 Sep 2009)
- Sven Anders reported that we introduced a cert verfication flaw for OpenSSL-
  powered libcurl in 7.19.6. If there was a X509v3 Subject Alternative Name
  field in the certficate it had to match and so even if non-DNS and non-IP
  entry was present it caused the verification to fail.

950 951 952 953 954 955 956
Daniel Fandrich (15 Sep 2009)
- Moved the libssh2 checks after the SSL library checks. This helps when
  statically linking since libssh2 needs the SSL library link flags to be
  set up already to satisfy its dependencies. This wouldn't be necessary if
  the libssh2 configure check was changed to use pkg-config since the
  --static flag would add the dependencies automatically.

Yang Tse 已提交
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Yang Tse (14 Sep 2009)
- Revert Joshua Kwan's patch committed 11 Sep 2009.

  Some systems poll function sets POLLHUP in revents without setting
  POLLIN, and sets POLLERR without setting POLLIN and POLLOUT. In some
  libcurl code execution paths this could trigger busy wait loops with
  high CPU usage until a timeout condition aborted the loop.

  The reverted patch addressed the above issue for a very specific case,
  when awaiting c-ares to resolve. A libcurl-wide fix for Curl_poll now
  superceeds this one.

969 970 971 972
Guenter Knauf (11 Sep 2009)
- Joshua Kwan provided a patch to pass POLLERR / POLLHUP back to c-ares.
  This fixes a loop problem with high CPU usage.

973 974 975 976 977 978
Daniel Stenberg (10 Sep 2009)
- Claes Jakobsson fixed a problem with cookie expiry dates at exctly the epoch
  start second "Thu Jan 1 00:00:00 GMT 1970" as the date parser then returns 0
  which internally then is treated as a session cookie. That particular date
  is now made to get the value of 1.

Daniel Stenberg (2 Sep 2009)
Gunter Knauf 已提交
- Daniel Johnson found a flaw in the code converting sftp-errors to libcurl
981 982

Daniel Stenberg (1 Sep 2009)
Gunter Knauf 已提交
- Peter Sylvester made a debug feature for Curl_resolv() that now will force
985 986 987 988
  libcurl to resolve 'localhost' whatever name you use in the URL *if* you set
  the --interface option to (exactly) "LocalHost". This will enable us to
  write tests for custom hosts names but still use a local host server.

989 990 991 992 993 994 995 996 997
- configure now tries to use pkg-config for a number of sub-dependencies even
  when cross-compiling. The key to success is then you properly setup
  PKG_CONFIG_PATH before invoking configure.

  I also improved how NSS is detected by trying nss-config if pkg-config isn't
  present, and as a last resort just use the lib name and force the user to
  setup the LIBS/LDFLAGS/CFLAGS etc properly. The previous last resort would
  add a range of various libs that would almost never be quite correct.

998 999 1000 1001 1002 1003 1004
Daniel Stenberg (31 Aug 2009)
- When using the multi interface with FTP and you asked for NOBODY, you did no
  QUOTE commands and the request used the same path as the connection had
  already changed to, it would decide that no commands would be necessary for
  the "DO" action and that was not handled properly but libcurl would instead

1005 1006 1007 1008 1009
Kamil Dudka (28 Aug 2009)
- Improved error message for not matching certificate subject name in
  libcurl-NSS. Originally reported at:

1010 1011 1012 1013 1014 1015 1016
Patrick Monnerat (24 Aug 2009)
- Introduced a SYST-based test to properly set-up name format when dealing
  with the OS/400 FTP server.

- Fixed an ftp_readresp() bug preventing detection of failing control socket
  and causing FTP client to loop forever.

Daniel Stenberg (24 Aug 2009)
1018 1019 1020
- Marc de Bruin pointed out that configure --with-gnutls=PATH didn't work
  properly and provided a fix.

1021 1022 1023 1024 1025
- Eric Wong introduced support for the new option -T. (dot) that makes curl
  read stdin in a non-blocking fashion. This also brings back -T- (minus) to
  the previous blocking behavior since it could break stuff for people at

1026 1027 1028 1029 1030
Michal Marek (21 Aug 2009)
- With CURLOPT_PROXY_TRANSFER_MODE, avoid sending invalid URLs like;type=i if the user specified without the

Daniel Stenberg (21 Aug 2009)
1032 1033 1034 1035 1036
- Andre Guibert de Bruet pointed out a missing return code check for a
  strdup() that could lead to segfault if it returned NULL. I extended his
  suggest patch to now have Curl_retry_request() return a regular return code
  and better check that.

1037 1038 1039 1040 1041 1042
- Lots of good work by Krister Johansen, mostly related to pipelining:

  Fix SIGSEGV on free'd easy_conn when pipe unexpectedly breaks
  Fix data corruption issue with re-connected transfers
  Fix use after free if we're completed but easy_conn not NULL

1043 1044 1045 1046 1047
Kamil Dudka (13 Aug 2009)
- Changed NSS code to not ignore the value of ssl.verifyhost and produce more
  verbose error messages. Originally reported at:

Daniel Stenberg 已提交
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Daniel Stenberg (12 Aug 2009)
- Karl Moerder fixed the* makefiles to include the new file
  nonblock.c so that they work fine again

- I expanded test 517 with a bunch of more dates that originate from the
  Chrome browser test suite. It turns out most of them get parsed the same

Daniel Stenberg 已提交
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Version 7.19.6 (12 August 2009)

1058 1059 1060 1061 1062 1063
Daniel Stenberg (12 Aug 2009)
- Carsten Lange reported a bug and provided a patch for TFTP upload and the
  sending of the TSIZE option. I don't like fixing bugs just hours before
  a release, but since it was broken and the patch fixes this for him I decided
  to get it in anyway.

Daniel Stenberg (11 Aug 2009)
1065 1066 1067 1068 1069 1070 1071
- Peter Sylvester made the HTTPS test server use specific certificates for
  each test, so that the test suite can now be used to actually test the
  verification of cert names etc. This made an error show up in the OpenSSL-
  specific code where it would attempt to match the CN field even if a
  subjectAltName exists that doesn't match. This is now fixed and verified
  in test 311.

1072 1073 1074 1075
- Benbuck Nason posted the bug report #2835196
  (, fixing a few compiler
  warnings when mixing ints and bools.

1076 1077 1078
Daniel Fandrich (10 Aug 2009)
- Fixed a memory leak in the FTP code and an off-by-one heap buffer overflow.

1079 1080 1081 1082
Daniel Fandrich (9 Aug 2009)
- Fixed some memory leaks in the command-line tool that caused most of the
  torture tests to fail.

1083 1084 1085 1086 1087 1088 1089 1090
Daniel Stenberg (2 Aug 2009)
- Curt Bogmine reported a problem with SNI enabled on a particular server. We
  should introduce an option to disable SNI, but as we're in feature freeze
  now I've addressed the obvious bug here (pointed out by Peter Sylvester): we
  shouldn't try to enable SNI when SSLv2 or SSLv3 is explicitly selected.
  Code for OpenSSL and GnuTLS was fixed. NSS doesn't seem to have a particular
  option for SNI, or are we simply not using it?

Daniel Stenberg (1 Aug 2009)
1092 1093 1094 1095 1096 1097 1098 1099 1100 1101 1102 1103
- Scott Cantor posted the bug report #2829955
  ( mentioning the recent SSL cert
  verification flaw found and exploited by Moxie Marlinspike. The presentation
  he did at Black Hat is available here:

  Apparently at least one CA allowed a subjectAltName or CN that contain a
  zero byte, and thus clients that assumed they would never have zero bytes
  were exploited to OK a certificate that didn't actually match the site. Like
  if the name in the cert was "\", libcurl would
  happily verify that cert for

1104 1105 1106 1107
  libcurl now better uses the length of the extracted name, not using the zero
  termination for getting the string length.

  This fixing only made and needed in OpenSSL interfacing code.

1109 1110 1111 1112 1113
- Tanguy Fautre pointed out that OpenSSL's function RAND_screen() (present
  only in some OpenSSL installs - like on Windows) isn't thread-safe and we
  agreed that moving it to the global_init() function is a decent way to deal
  with this situation.

1114 1115 1116 1117
- Alexander Beedie provided the patch for a noproxy problem: If I have set
  CURLOPT_NOPROXY to "*", or to a host that should not use a proxy, I actually
  could still end up using a proxy if a proxy environment variable was set.

1118 1119 1120 1121 1122 1123 1124 1125
Daniel Stenberg (27 Jul 2009)
- All the quote options (CURLOPT_QUOTE, CURLOPT_POSTQUOTE and
  CURLOPT_PREQUOTE) now accept a preceeding asterisk before the command to
  send when using FTP, as a sign that libcurl shall simply ignore the response
  from the server instead of treating it as an error. Not treating a 400+ FTP
  response code as an error means that failed commands will not abort the
  chain of commands, nor will they cause the connection to get disconnected.

Daniel Stenberg (26 Jul 2009)
1127 1128 1129 1130 1131 1132
- Johan van Selst posted bug report #2825989
  ( pointing out that
  OpenSSL-powered libcurl didn't support the SHA-2 digest algorithm, and
  provided the solution too: to use OpenSSL_add_all_algorithms() in addition
  to the older SSLeay_* alternative. OpenSSL_add_all_algorithms was added in
  OpenSSL 0.9.5

1134 1135 1136 1137 1138 1139
Daniel Stenberg (23 Jul 2009)
  They introduce known_host support for SSH keys to libcurl. See docs for
  details. Note that this feature depends on a new enough libssh2 version, to
  be supported in libssh2 1.2 and later (or current git repo at this time).

1140 1141
Michal Marek (22 Jul 2009)
- David Binderman found a memory and fd leak in lib/gtls.c:load_file()
1142 1143 1144
  ( When looking at the code, I found that
  also the ptr pointer can leak.

Kamil Dudka (20 Jul 2009)
1146 1147
- Claes Jakobsson improved the support for client certificates handling in
  NSS-powered libcurl. Now the client certificates can be selected
1148 1149 1150 1151
  automatically by a NSS built-in hook. Additionally pre-login to all PKCS11
  slots is no more performed. It used to cause problems with HW tokens.

- Fixed reference counting for NSS client certificates. Now the PEM reader
1152 1153
  module should be always properly unloaded on Curl_nss_cleanup(). If the
  unload fails though, libcurl will try to reuse the already loaded instance.

1155 1156 1157 1158
Daniel Fandrich (15 Jul 2009)
- Added nonblock.c to the non-automake makefiles (note that the dependencies
  in the Watcom makefiles aren't quite correct).

1159 1160 1161 1162
Michal Marek (15 Jul 2009)
- Changed the description of CURLINFO_OS_ERRNO to make it clear that the
  errno is not reset on success.

1163 1164 1165
Guenter Knauf (14 Jul 2009)
- renamed generated config.h to curl_config.h to avoid any future clashes
  with config.h from other projects.
Yang Tse 已提交

1167 1168 1169 1170 1171
Daniel Stenberg (9 Jul 2009)
- Eric Wong introduced curlx_nonblock() that the curl tool now (re-)uses for
  setting a file descriptor non-blocking. Used by the functionality Eric
  himself brough on June 15th.

1172 1173 1174 1175 1176 1177 1178 1179 1180 1181 1182 1183 1184 1185 1186 1187 1188 1189 1190 1191 1192
Daniel Stenberg (8 Jul 2009)
- Constantine Sapuntzakis posted bug report #2813123
  ( and an a patch that fixes the

  Url A is accessed using auth. Url A redirects to Url B (on a different
  server0. Url B reuses a persistent connection. Url B has auth, even though
  it's on a different server.

  Note: if Url B does not reuse a persistent connection, auth is not sent.


  data->state.first_host is not initialized becuase Curl_http_connect is not
  called when a connection is reused.


  move initialization of data->state.first_host to Curl_http. No code before
  Curl_http uses data->state.first_host anyway.

1193 1194 1195 1196
Guenter Knauf (4 Jul 2009)
- Markus Koetter provided a patch to avoid getnameinfo() usage which broke a
  couple of both IPv4 and IPv6 autobuilds.

1197 1198 1199 1200 1201 1202 1203 1204 1205 1206
Daniel Stenberg (29 Jun 2009)
- Markus Koetter made CURLOPT_FTPPORT (and curl's -P/--ftpport) support a port
  range if given colon-separated after the host name/address part. Like

- Modified the separators used for CURLOPT_CERTINFO in multi-part outputs. I
  don't know how they got wrong in the first place, but using this output
  format makes it possible to quite easily separate the string into an array
  of multiple items.

1207 1208 1209
Daniel Fandrich (16 June 2009)
- Added a few more compiler warning options for gcc.

1210 1211 1212 1213 1214
Daniel Stenberg (16 Jun 2009)
- Reuven Wachtfogel made curl -o - properly produce a binary output on windows
  (no newline translations). Use -B/--use-ascii if you rather get the ascii

1215 1216 1217 1218
Michal Marek (16 Jun 2009)
- When doing non-anonymous ftp via http proxies and the password is not
  provided in the url, add it there (squid needs this).

Daniel Stenberg 已提交
1219 1220 1221 1222 1223 1224 1225 1226 1227 1228 1229 1230 1231 1232 1233
Daniel Stenberg (15 Jun 2009)
- Eric Wong's patch:

  This allows curl(1) to be used as a client-side tunnel for arbitrary stream
  protocols by abusing chunked transfer encoding in both the HTTP request and
  HTTP response.  This requires server support for sending a response while a
  request is still being read, of course.

  If attempting to read from stdin returns EAGAIN, then we pause our sender.
  This leaves curl to attempt to read from the socket while reading from stdin
  (and thus sending) is paused.

  This change was needed to allow successfully tunneling the git protocol over
  HTTP (--no-buffer is needed, as well).

1234 1235 1236 1237
Patrick Monnerat (15 Jun 2009)
- Replaced use of standard C library rand()/srand() by our own pseudo-random
  number generator.

Yang Tse 已提交
1238 1239 1240 1241
Yang Tse (11 Jun 2009)
- I adapted testcurl script to allow building test harness programs when
  cross-compiling for a *-*-mingw* host.

1242 1243 1244 1245
Daniel Stenberg (10 Jun 2009)
- Fabian Keil ran clang on the (lib)curl code, found a bunch of warnings and
  contributed a range of patches to fix them.

Yang Tse 已提交
1246 1247 1248 1249 1250 1251 1252 1253 1254 1255 1256 1257 1258 1259 1260
Yang Tse (10 Jun 2009)
- I introduced configure script option --enable-curldebug which now allows
  the decoupled enabling or disabling of the curl debug memory tracking
  feature from the --enable-debug option which no longer controls this.

  curl --version will list 'Debug' feature for debug enabled builds, and
  will list 'TrackMemory' feature for curl debug memory tracking capable
  builds. These features are independent and can be controlled when running
  the configure script. When --enable-debug is given both features will be
  enabled, unless some restriction prevents memory tracking from being used.

  Internally, definition of preprocessor symbol DEBUGBUILD restricts code
  which is only compiled for debug enabled builds. And symbol CURLDEBUG is
  used to differentiate code which is _only_ used for memory tracking.

1261 1262 1263 1264 1265
Yang Tse (9 Jun 2009)
- Daniel Steinberg pointed out that Curl_FormInit() in formdata.c was not
  initializing the fread callback pointer and this triggered a compiler
  warning, also provided a friendly suggestion on how to fix it.

Daniel Stenberg (8 Jun 2009)
1267 1268 1269 1270
- Claes Jakobsson provided a patch for libcurl-NSS that fixed a bad refcount
  issue with client certs that caused issues like segfaults.

1271 1272 1273 1274 1275 1276
- Triggered by bug report #2798852 and the patch in there, I fixed configure
  to detect gnutls build options with pkg-config only and not libgnutls-config
  anymore since GnuTLS has stopped distributing that tool. If an explicit path
  is given to configure, we will instead guess on how to link and use that
  lib. I did not use the patch from the bug report.

Yang Tse 已提交
1277 1278 1279 1280
Yang Tse (8 Jun 2009)
- Igor Novoseltsev adjusted Makefile.vxworks to get sources and headers
  included from, and provided docs\INSTALL VxWorks section.

- I removed buildconf.bat from release and daily snapshot archives. This
Yang Tse 已提交
1282 1283
  file is only for CVS tree checkout builds.

Daniel Stenberg (8 Jun 2009)
1285 1286 1287
- Eric Wong fixed --no-buffer to actually switch off output buffering. Been
  broken since 7.19.0

Bill Hoffman (6 Jun 2009)
Daniel Stenberg 已提交
1289 1290
- Added some cmake docs and fixed socklen_t in the build.

Yang Tse 已提交
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Yang Tse (5 Jun 2009)
- John E. Malmberg provided VMS specific patch: "This fixes an existing bug
  in urlglob.c where it was not converting the Curl Unix exit code to a VMS
  DCL compatible exit code.  This fix required the enhancement described next.
  This also adds an enhancement to main.c so that when curl is run under a
  Unix shell like Bash on VMS, it will return the standard Unix exit codes
Yang Tse 已提交
  and messages." And another patch for docs/examples.
Yang Tse 已提交
1298 1299 1300 1301 1302 1303

  I introduced os-specific.c and os-specific.h for use in curl tool code
  and adjusted John E. Malmberg's patch placement to use these new files
  as an effort to prevent main.c from growing ad infinitum. Code already
  existing in main.c which is OS specific should be moved into these files.

1304 1305 1306 1307 1308 1309 1310 1311
Daniel Stenberg (4 June 2009)
- Setting the Content-Length: header from your app when you do a POST or PUT
  is almost always a VERY BAD IDEA. Yet there are still apps out there doing
  this, and now recently it triggered a bug/side-effect in libcurl as when
  libcurl sends a POST or PUT with NTLM, it sends an empty post first when it
  knows it will just get a 401/407 back. If the app then replaced the
  Content-Length header, it caused the server to wait for input that libcurl
  wouldn't send. Aaron Oneal reported this problem in bug report #2799008
  ( and helped us verify the fix.

Yang Tse 已提交
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Yang Tse (4 Jun 2009)
- Igor Novoseltsev provided patches and information, that after some
  adjustments to better fit curl's way of doing things, have resulted
  in the posibility of building libcurl for VxWorks.

1319 1320 1321 1322 1323 1324 1325
Daniel Fandrich (2 June 2009)
- Checked in a Google Android make file. To use it, you must first
  create a config.h file by running configure in the Android environment,
  which doesn't seem to be easy to do. If no easy way can be found, a
  static config-android.h may need to be created and checked in to the
  libcurl source tree.

1326 1327 1328 1329
Daniel Stenberg (1 June 2009)
- Claes Jakobsson fixed the configure script to better find and use NSS
  without pkg-config.

Yang Tse 已提交
1330 1331 1332 1333 1334 1335 1336
Yang Tse (1 Jun 2009)
- John E. Malmberg provided a VMS specific clean-up for curl.h, and pointed
  out that the configure script was failing to detect the timeval struct on
  VMS when building with _XOPEN_SOURCE_EXTENDED undefined due to definition
  taking place in socket.h instead of time.h.  I have adjusted configure
  script to also include this header when checking struct timeval.

1337 1338 1339 1340
Daniel Stenberg (27 May 2009)
- Frank McGeough provided a small OpenSSL #include fix to make libcurl compile
  fine with Nokia 5th edition 1.0 SDK for Symbian.

1341 1342 1343
- Andre Guibert de Bruet found a call to a OpenSSL function that didn't check
  for a failure properly.

1344 1345 1346 1347
- Mike Crowe pointed out that setting CURLOPT_USERPWD to NULL used to clear
  the auth credentials back in 7.19.0 and earlier while now you have to set ""
  to get the same effect. His patch brings back the ability to use NULL.

1348 1349 1350
- Claes Jakobsson fixed libcurl-NSS to build fine even without the
  PK11_CreateGenericObject() function.

1351 1352 1353 1354 1355 1356 1357
Daniel Stenberg (25 May 2009)
- bug report #2796358 ( pointed
  out that the cookie parser would leak memory when it parses cookies that are
  received with domain, path etc set multiple times in the same header. While
  such a cookie is questionable, they occur in the wild and libcurl no longer
  leaks memory for them. I added such a header to test case 8.

1358 1359 1360
Daniel Fandrich (22 May 2009)
- Removed some obsolete digest code that caused a valgrind error in test 551.

1361 1362 1363 1364 1365
Daniel Fandrich (20 May 2009)
- Added "non-existing host" test keywords to make it easy to skip those
  tests on machines that have broken DNS configurations (such as
  those configured to use OpenDNS).

1366 1367 1368 1369 1370 1371
Daniel Stenberg (19 May 2009)
- Kamil Dudka brought the patch from the Redhat bug entry which was libcurl closing
  a bad file descriptor when closing down the FTP data connection.  Caolan
  McNamara seems to be the original author of it.

Daniel Stenberg 已提交
1372 1373
Version 7.19.5 (18 May 2009)

1374 1375 1376 1377 1378
Daniel Stenberg (17 May 2009)
- James Bursa posted a patch to the mailing list that fixed a problem with
  no_proxy which made it not skip the proxy if the URL entered contained a
  user name. I added test case 1101 to verify.

Daniel Stenberg (11 May 2009)
1380 1381 1382 1383 1384
- Balint Szilakszi reported a memory leak when libcurl did gzip decompression
  of streams that had some parts (legitimately) missing. We now provide and use
  a proper cleanup function for the content encoding submodule.

1385 1386 1387 1388 1389 1390
- Kamil Dudka provided a fix for libcurl-NSS reported by Michael Cronenworth

  If an incorrect password is given while loading a private key, libcurl ends
  up in an infinite loop consuming memory. The bug is critical.

1391 1392 1393 1394 1395
- I fixed the problem with doing NTLM, POST and then following a 302 redirect,
  as reported by Ebenezer Ikonne (on curl-users) and Laurent Rabret (on
  curl-library). The transfer was mistakenly marked to get more data to send
  but since it didn't actually have that, it just hung there...

1396 1397 1398 1399
Daniel Stenberg (10 May 2009)
- Andre Guibert de Bruet correctly pointed out an over-alloc with one wasted
  byte in the digest code.

Yang Tse 已提交
1400 1401 1402 1403 1404 1405
Yang Tse (9 May 2009)
- Removed DOS and TPF package's subdirectory, it was only used
  to include some files in the distribution tarball serving no other purpose.
  Files from the DOS and TPF subdirectories are now included in the EXTRA_DIST
  of the Makefile in the parent subdirectory.

Yang Tse 已提交
1406 1407 1408 1409 1410 1411
Yang Tse (8 May 2009)
- Changed host name literal in several tests to one under the domain.

- Renamed vc6 workspace and project files to avoid filename clash when used
  for conversion to later VS versions.

1412 1413 1414 1415 1416 1417 1418 1419 1420
Daniel Stenberg (8 May 2009)
- Constantine Sapuntzakis fixed bug report #2784055
  ( identifying a problem to
  connect to SOCKS proxies when using the multi interface. It turned out to
  almost not work at all previously. We need to wait for the TCP connect to
  be properly verified before doing the SOCKS magic.

  There's still a flaw in the FTP code for this.

1421 1422 1423 1424
Daniel Stenberg (7 May 2009)
- Made the SO_SNDBUF setting for the data connection socket for ftp uploads as
  well. See change 28 Apr 2009.

1425 1426 1427 1428
Yang Tse (7 May 2009)
- Fixed an issue affecting FTP transfers, introduced with the transfer.c
  patch committed May 4.

Daniel Stenberg (7 May 2009)
1430 1431 1432
- Man page *roff problems fixed thanks to input from Colin Watson. Problems
  reported in the Debian package.

1433 1434 1435 1436
- Vijay G filed bug report #2723236
  ( identifying a problem with
  libcurl's TFTP code and its lack of dealing with the OACK packet.

Yang Tse 已提交
1437 1438 1439 1440
Yang Tse (5 May 2009)
- Fixed the --ftp-port address of test #251 to the CLIENTIP address, and
  reverted the change affecting test suite harness committed 4 May.

1441 1442 1443 1444 1445
Daniel Stenberg (5 May 2009)
- Inspired by Michael Smith's session id fix for OpenSSL, I did the
  corresponding fix in the GnuTLS code: make sure to store the new session id
  in case the previous re-used one is rejected.

1446 1447 1448 1449 1450 1451 1452 1453
Daniel Stenberg (4 May 2009)
- Michael Smith posted bug report #2786255
  ( with a patch, identifying how
  libcurl did not deal with SSL session ids properly if the server rejected a
  re-use of one. Starting now, it will forget the rejected one and remember
  the new. This change was for OpenSSL only, it is likely that other SSL lib
  code needs similar fixes.

1454 1455 1456 1457 1458 1459 1460 1461
Yang Tse (4 May 2009)
- Applied David McCreedy's "transfer.c fixes for CURL_DO_LINEEND_CONV and
  non-ASCII platform HTTP requests" patch addressing two HTTP PUT problems:
  1) On non-ASCII platforms not all of the protocol portions of the PUT are
  being translated to ASCII.  2) On all platforms the line endings of part of
  the protocol portions are mangled from CRLF to CRCRLF if data->set.crlf or
  data->set.prefer_ascii are set (depending on CURL_DO_LINEEND_CONV).

1462 1463 1464 1465
- Applied David McCreedy's patch to fix test suite harness to allow test FTP
  server and client on different machines, providing FTP client address when
  running the FTP test server.

1466 1467 1468 1469
Daniel Fandrich (3 May 2009)
- Added and disabled test case 563 which shows KNOWN_BUGS #59.  The bug
  report failed to mention that a proxy must be used to reproduce it.

1470 1471 1472
Yang Tse (2 May 2009)
- Use a build-time configured curl_socklen_t data type instead of socklen_t.

1473 1474 1475 1476
Yang Tse (1 May 2009)
- Applied David McCreedy's patches "TPF-platform specific changes to various
  files" and "http.c fix to Curl_proxyCONNECT for non-ASCII platforms", the
  former with minor edits.
1477 1478 1479 1480 1481 1482 1483 1484 1485 1486

Daniel Stenberg (30 Apr 2009)
- I was going to fix issue #59 in KNOWN_BUGS

  If the CURLOPT_PORT option is used on an FTP URL like
  ";type=A" the ";type=A" is stripped off.

  I added test case 562 to verify, only to find out that I couldn't repeat
  this bug so I hereby consider it not a bug anymore!

1487 1488 1489 1490 1491 1492 1493 1494
Daniel Stenberg (29 Apr 2009)
- Based on bug report #2723219 (
  I've now made TFTP "connections" not being kept for re-use within libcurl.
  TFTP is UDP-based so the benefit was really low (if even existing) to begin
  with so instead of tracking down to fix this problem we instead removed the
  re-use. I also enabled test case 1099 that I wrote a few days ago to verify
  that this change fixes the reported problem.

Daniel Stenberg (28 Apr 2009)
1496 1497 1498 1499 1500 1501
- Constantine Sapuntzakis filed bug report #2783090
  ( pointing out that on windows
  we need to grow the SO_SNDBUF buffer somewhat to get really good upload
  speeds. has the details. Friends
  confirmed that simply adding 32 to CURL_MAX_WRITE_SIZE is enough.

1502 1503 1504 1505 1506 1507 1508 1509 1510 1511 1512
- Bug report #2709004 ( by Tim
  Chen pointed out how curl couldn't upload with resume when reading from a

  This ended up with the introduction of a new return code for the
  CURLOPT_SEEKFUNCTION callback that basically says that the seek failed but
  that libcurl may try to resolve the situation anyway. In our case this means
  libcurl will attempt to instead read that much data from the stream instead
  of seeking and that way curl can now upload with resume when data is read
  from a stream!

1513 1514 1515 1516 1517
Daniel Stenberg (26 Apr 2009)
- Bug report #2779733 ( by Sven
  Wegener pointed out that CURLINFO_APPCONNECT_TIME didn't work with the multi
  interface and provided a patch that fixed the problem!

Daniel Stenberg (24 Apr 2009)
1519 1520
- Kamil Dudka fixed another NSS-related leak when client certs were used.

- Bug report #2779245 ( by Rainer
1522 1523 1524 1525
  Koenig pointed out that the man page didn't tell that the *_proxy
  environment variables can be specified lower case or UPPER CASE and the
  lower case takes precedence,

1526 1527 1528
Daniel Fandrich (21 Apr 2009)
- Added new libcurl source files to Amiga, RiscOS and VC6 build files.

1529 1530 1531 1532 1533
Yang Tse (21 Apr 2009)
- Moved potential inclusion of system's malloc.h and memory.h header files to
  setup_once.h.  Inclusion of each header file is based on the definition of
  NEED_MALLOC_H and NEED_MEMORY_H respectively.

1534 1535
  Renamed libcurl's memory.h to curl_memory.h

Daniel Stenberg (20 Apr 2009)
1537 1538 1539 1540 1541 1542 1543
- Leanic Lefever reported a crash and did some detailed research on why and
  how it occurs ( The
  conclusion was that if an error is detected and Curl_done() is called for
  the connection, ftp_done() could at times return another error code that
  then would take precedence and that new code confused existing logic that
  works for the first error code (CURLE_SEND_ERROR) only.

1544 1545 1546 1547 1548
- Gisle Vanem noticed that --libtool would produce bogus strings at times for
  OBJECTPOINT options. Now we've introduced a new function - my_setopt_str -
  within the app for setting plain string options to avoid the risk of this
  mistake happening.

1549 1550 1551 1552 1553 1554 1555 1556 1557 1558 1559
Daniel Stenberg (17 Apr 2009)
- Pramod Sharma reported and tracked down a bug when doing FTP over a HTTP
  proxy. libcurl would then wrongly close the connection after each
  request. In his case it had the weird side-effect that it killed NTLM auth
  for the proxy causing an inifinite loop!

  I added test case 1098 to verify this fix. The test case does however not
  properly verify that the transfers are done persistently - as I couldn't
  think of a clever way to achieve it right now - but you need to read the
  stderr output after a test run to see that it truly did the right thing.

Daniel Stenberg (13 Apr 2009)
1561 1562 1563 1564 1565 1566 1567 1568 1569 1570 1571 1572 1573 1574
- bug report #2727981 ( by Martin
  Storsjö pointed out how setting CURLOPT_NOBODY to 0 could be downright
  confusing as it set the method to either GET or HEAD. The example he showed
  looked like:

   curl_easy_setopt(curl, CURLOPT_PUT, 1);
   curl_easy_setopt(curl, CURLOPT_NOBODY, 0);

  The new way doesn't alter the method until the request is about to start. If
  CURLOPT_NOBODY is then 1 the HTTP request will be HEAD. If CURLOPT_NOBODY is
  0 and the request happens to have been set to HEAD, it will then instead be
  set to GET. I believe this will be less surprising to users, and hopefully
  not hit any existing users badly.

1575 1576 1577 1578 1579 1580 1581
- Toshio Kuratomi reported a memory leak problem with libcurl+NSS that turned
  out to be leaking cacerts. Kamil Dudka helped me complete the fix. The issue
  is found in Redhat's bug tracker:

  There are still memory leaks present, but they seem to have other reasons.

1582 1583 1584 1585
Daniel Fandrich (11 Apr 2009)
- Added new libcurl source files to Symbian OS build files.
- Improved Symbian support for SSL.

1586 1587 1588 1589
Yang Tse (10 Apr 2009)
- Daniel Johnson improved the MacOSX-Framework shell script to now perform all
  the steps required to build a Mac OS X f