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Jay Satiro 3bfda07004 easy: Fix curl_easy_duphandle for builds missing IPv6 that use c-ares
- Ignore CURLE_NOT_BUILT_IN errors returned by c-ares functions in
  curl_easy_duphandle.

Prior to this change if c-ares was used as the resolver backend and
either it was too old or libcurl was built without IPv6 support then
some of our resolver functions could return CURLE_NOT_BUILT_IN to
curl_easy_duphandle causing it to fail.

Caused by c8f086b which shipped in 7.69.1.

Reported-by: Karl Chen

Fixes https://github.com/curl/curl/issues/5097
Closes https://github.com/curl/curl/pull/5100
2020-03-14 19:07:05 -04:00
.github CIfuzz: switch off 'dry_run' mode 2020-02-28 16:50:43 +01:00
CMake CMake: clean up and improve build procedures 2020-02-29 23:14:16 -05:00
docs docs: add warnings about FILE: URLs on Windows 2020-03-13 16:56:41 +01:00
include RELEASE-NOTES: synced 2020-03-11 11:07:53 +01:00
lib easy: Fix curl_easy_duphandle for builds missing IPv6 that use c-ares 2020-03-14 19:07:05 -04:00
m4 configure: convert -I to -isystem as a last step 2020-03-11 08:51:25 +01:00
packages cleanup: fix some text/comment typos 2020-03-12 14:28:17 +01:00
plan9 plan9: fix installation instructions 2019-08-29 19:24:59 +02:00
projects checksrc.bat: Fix not being able to run script from the main curl directory 2020-02-07 21:51:36 +00:00
scripts contributors: Also include people who contributed to curl-www 2020-02-05 13:54:16 +01:00
src tool_cb_see: set correct copyright year range 2020-03-07 11:00:48 +01:00
tests server/getpart: make the "XML-parser" stricter 2020-03-13 11:03:42 +01:00
winbuild winbuild: Document CURL_STATICLIB requirement for static libcurl 2019-12-15 17:31:23 -05:00
.azure-pipelines.yml ci/tests: Make it possible to still run but ignore failing tests 2020-03-03 17:32:38 +01:00
.cirrus.yml cirrus-ci: disable the FreeBSD 13 builds 2020-03-04 14:23:07 +01:00
.dir-locals.el Add .dir-locals and set c-basic-offset to 2. 2015-12-23 10:16:14 +01:00
.gitattributes .gitattributes: make tabs in indentation a visible error 2018-12-06 20:21:17 +01:00
.gitignore scripts/completion.pl: also generate fish completion file 2019-03-02 11:31:18 +01:00
.lgtm.yml CI: remove duplicate configure flag for LGTM.com 2019-08-31 11:40:09 +02:00
.mailmap RELEASE-NOTES: synced 2020-01-27 09:44:33 +01:00
.travis.yml travis: update non-OpenSSL Linux jobs to Bionic 2020-02-03 14:20:47 +01:00
CHANGES CHANGES: spell fix, use correct path to script 2017-02-07 08:22:37 +01:00
CMakeLists.txt cmake: Show HTTPS-proxy in the features output 2020-03-03 15:17:07 -05:00
COPYING COPYING: it's 2020! 2020-01-03 15:12:46 +01:00
GIT-INFO CHANGES.0: removed 2017-02-07 08:20:10 +01:00
MacOSX-Framework includes: remove curl/curlbuild.h and curl/curlrules.h 2017-06-14 11:07:33 +02:00
Makefile.am Makefile: run the cd commands in a subshell 2020-03-11 10:15:06 +01:00
Makefile.dist build: remove the Borland specific makefiles 2018-06-02 11:23:40 +02:00
README README: mention that the docs is in docs/ 2020-01-27 13:06:45 +01:00
README.md README.md: add Azure DevOps Pipelines build status badge 2020-03-03 17:11:26 +01:00
RELEASE-NOTES RELEASE-NOTES: synced 2020-03-11 11:07:53 +01:00
SECURITY.md SECURITY.md: created 2019-06-10 10:16:02 +02:00
acinclude.m4 polarssl: remove more references and mentions 2020-03-05 07:57:45 +01:00
appveyor.yml seek: fix fallback for missing ftruncate on Windows 2020-03-07 10:59:27 +01:00
buildconf includes: remove curl/curlbuild.h and curl/curlrules.h 2017-06-14 11:07:33 +02:00
buildconf.bat copyrights: update all copyright notices to 2019 on files changed this year 2019-11-02 23:15:56 +01:00
configure.ac configure: convert -I to -isystem as a last step 2020-03-11 08:51:25 +01:00
curl-config.in curl-config.in: remove dependency on bc 2018-10-26 00:06:19 +02:00
libcurl.pc.in URLs: change all http:// URLs to https:// 2016-02-03 00:19:02 +01:00
maketgz maketgz: delete .bak files, fix indentation 2018-06-15 23:28:34 +00:00

README.md

curl logo

CII Best Practices Coverity passed Travis-CI Build Status AppVeyor Build Status Azure DevOps Build Status Cirrus Build Status Backers on Open Collective Sponsors on Open Collective Language Grade: C/C++ Codacy Badge Fuzzing Status

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 can 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)

Security problems

Report suspected security problems via our HackerOne page and not in public!

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

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