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6765e6d9e6
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Romain Fliedel 6765e6d9e6
ares: remove fd from multi fd set when ares is about to close the fd 
When using c-ares for asyn dns, the dns socket fd was silently closed
by c-ares without curl being aware. curl would then 'realize' the fd
has been removed at next call of Curl_resolver_getsock, and only then
notify the CURLMOPT_SOCKETFUNCTION to remove fd from its poll set with
CURL_POLL_REMOVE. At this point the fd is already closed.

By using ares socket state callback (ARES_OPT_SOCK_STATE_CB), this
patch allows curl to be notified that the fd is not longer needed
for neither for write nor read. At this point by calling
Curl_multi_closed we are able to notify multi with CURL_POLL_REMOVE
before the fd is actually closed by ares.

In asyn-ares.c Curl_resolver_duphandle we can't use ares_dup anymore
since it does not allow passing a different sock_state_cb_data

Closes #3238
2018-11-20 19:58:45 +01:00
.github github/lock: auto-lock closed issues after 90 days of inactivity 2018-05-05 14:05:57 +02:00
CMake cmake: uniform ZLIB to use USE_ variable and clean curl-config.cmake.in 2018-10-29 17:10:31 +01:00
docs examples/ephiperfifo: report error when epoll_ctl fails 2018-11-20 19:58:41 +01:00
include curle: move deprecated error code to ifndef block 2018-11-19 15:16:54 -08:00
lib ares: remove fd from multi fd set when ares is about to close the fd 2018-11-20 19:58:45 +01:00
m4 configure: s/AC_RUN_IFELSE/CURL_RUN_IFELSE 2018-09-26 18:51:34 +02:00
packages ssl: replace all internal uses of CURLE_SSL_CACERT 2018-11-20 14:57:00 +01:00
projects winssl: be consistent in Schannel capitalization 2018-11-07 10:11:13 +01:00
scripts whitespace fixes 2018-09-23 22:24:02 +00:00
src ssl: replace all internal uses of CURLE_SSL_CACERT 2018-11-20 14:57:00 +01:00
tests impacket: add LICENSE 2018-11-19 14:08:28 +01:00
winbuild curl: enabled Windows VT Support and UTF-8 output 2018-09-29 12:39:41 +02:00
.dir-locals.el Add .dir-locals and set c-basic-offset to 2. 2015-12-23 10:16:14 +01:00
.gitattributes .gitattributes: force shell scripts to LF 2017-04-17 08:32:13 +02:00
.gitignore ossfuzz: Move to C++ for curl_fuzzer. 2017-09-02 11:07:55 +02:00
.lgtm.yml CI: add lgtm.yml for tweaking lgtm.com analysis 2018-03-22 00:04:55 +01:00
.mailmap URL and mailmap updates, remove an obsolete directory [ci skip] 2018-09-22 07:58:32 +00:00
.travis-iconv-env.sh travis: add build with iconv enabled 2018-02-15 14:18:34 +01:00
.travis.yml travis: remove curl before a normal build 2018-11-02 15:59:39 +01:00
acinclude.m4 configure: remove CURL_CONFIGURE_CURL_SOCKLEN_T 2018-10-25 13:18:23 +02:00
appveyor.yml AppVeyor: remove BDIR variable that sneaked in again 2018-10-10 21:57:42 +02:00
buildconf includes: remove curl/curlbuild.h and curl/curlrules.h 2017-06-14 11:07:33 +02:00
buildconf.bat whitespace fixes 2018-09-23 22:24:02 +00:00
CHANGES CHANGES: spell fix, use correct path to script 2017-02-07 08:22:37 +01:00
CMakeLists.txt axtls: removed 2018-11-01 10:29:53 +01:00
configure.ac configure: show CFLAGS, LDFLAGS etc in summary 2018-11-01 11:58:06 +01:00
COPYING COPYING: it's 2018! 2018-01-09 17:08:14 +13:00
curl-config.in curl-config.in: remove dependency on bc 2018-10-26 00:06:19 +02:00
GIT-INFO CHANGES.0: removed 2017-02-07 08:20:10 +01:00
libcurl.pc.in URLs: change all http:// URLs to https:// 2016-02-03 00:19:02 +01:00
MacOSX-Framework includes: remove curl/curlbuild.h and curl/curlrules.h 2017-06-14 11:07:33 +02:00
Makefile.am Makefile: add 'tidy' target that runs clang-tidy 2018-10-27 15:59:38 +02:00
Makefile.dist build: remove the Borland specific makefiles 2018-06-02 11:23:40 +02:00
maketgz maketgz: delete .bak files, fix indentation 2018-06-15 23:28:34 +00:00
README URLs: follow GitHub project rename (also Travis CI) 2016-02-04 23:01:38 +01:00
README.md replace rawgit links [ci skip] 2018-10-12 21:04:37 +00:00
RELEASE-NOTES RELEASE-NOTES: synced 2018-11-19 14:39:59 +01:00

README.md

curl logo

CII Best Practices Coverity passed Travis-CI Build Status AppVeyor Build Status Coverage Status Backers on Open Collective Sponsors on Open Collective Language Grade: C/C++

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.

All contributors to the project are listed in the THANKS document.

Website

Visit the curl web site for the latest news and downloads.

Git

To download the very latest source from the Git server do this:

git clone https://github.com/curl/curl.git

(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 Högskolan. This notice is included here to comply with the distribution terms.

Backers

Thank you to all our backers! 🙏 [Become a backer]

Sponsors

Support this project by becoming a sponsor. Your logo will show up here with a link to your website. [Become a sponsor]