6fdbb01194
(http://curl.haxx.se/bug/view.cgi?id=1431750) helped me identify and fix two different but related bugs: 1) Removing an easy handle from a multi handle before the transfer is done could leave a connection in the connection cache for that handle that is in a state that isn't suitable for re-use. A subsequent re-use could then read from a NULL pointer and segfault. 2) When an easy handle was removed from the multi handle, there could be an outstanding c-ares DNS name resolve request. When the response arrived, it caused havoc since the connection struct it "belonged" to could've been freed already. Now Curl_done() is called when an easy handle is removed from a multi handle pre-maturely (that is, before the transfer was complteted). Curl_done() also makes sure to cancel all (if any) outstanding c-ares requests.
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README
Curl is a command line tool for transferring data specified with URL
syntax. Find out how to use Curl by reading the curl.1 man page or the
MANUAL document. Find out how to install Curl by reading the INSTALL
document.
libcurl is the library curl is using to do its job. It is readily
available to be used by your software. Read the libcurl.3 man page to
learn how!
You find answers to the most frequent questions we get in the FAQ document.
Study the COPYING file for distribution terms and similar. If you distribute
curl binaries or other binaries that involve libcurl, you might enjoy the
LICENSE-MIXING document.
CONTACT
If you have problems, questions, ideas or suggestions, please contact us
by posting to a suitable mailing list. See http://curl.haxx.se/mail/
All contributors to the project are listed in the THANKS document.
WEB SITE
Visit the curl web site or mirrors for the latest news and downloads:
Sweden http://curl.haxx.se/
Australia http://curl.planetmirror.com/
Austria http://curl.gds.tuwien.ac.at/
Denmark http://curl.cofman.dk/
France http://curl.fastmirror.net/
Germany http://curl.freemirror.de/
Germany http://curl.mirror-server.net/
Germany http://curl.mirror.at.stealer.net/
Germany http://curl.mirroring.de/
Germany http://curl.miscellaneousmirror.org/
Germany http://curl.mons-new-media.de/
Germany http://curl.storemypix.com/
Germany http://curl.triplemind.com/
Hong Kong http://curl.hkmirror.org/
Japan http://curl.s-lines.net/
Netherlands http://curl.nedmirror.nl/
Russia http://curl.tsuren.net/
Taiwan http://curl.cs.pu.edu.tw/
Thailand http://curl.siamu.ac.th/
US (AZ) http://curl.islandofpoker.com/
US (CA) http://curl.meulie.net/
US (CA) http://curl.mirror.redwire.net/
US (CA) http://curl.mirrormonster.com/
US (CA) http://curl.signal42.com/
US (FL) http://curl.hoxt.com/
US (TX) http://curl.109k.com/
US (TX) http://curl.hostingzero.com/
US (TX) http://curl.mirrors.cyberservers.net/
US (TX) http://curl.seekmeup.com/
CVS
To download the very latest source off the CVS server do this:
cvs -d :pserver:anonymous@cool.haxx.se:/cvsroot/curl login
(just press enter when asked for password)
cvs -d :pserver:anonymous@cool.haxx.se:/cvsroot/curl co curl
(you'll get a directory named curl created, filled with the source code)
NOTICE
Curl contains pieces of source code that is Copyright (c) 1998, 1999
Kungliga Tekniska H<>gskolan. This notice is included here to comply with the
distribution terms.