e58d9c87f7
We found that in specific cases if the connection is abruptly closed, the underlying socket is listed in a close_wait state. We continue to call the curl_multi_perform, curl_mutli_fdset etc. None of these APIs report the socket closed / connection finished. Since we have cases where the multi connection is only used once, this can pose a problem for us. I've read that if another connection was to come in, curl would see the socket as bad and attempt to close it at that time - unfortunately, this does not work for us. I found that in specific situations, if SSL_write returns 0, curl did not recognize the socket as closed (or errored out) and did not report it to the application. I believe we need to change the code slightly, to check if ssl_write returns 0. If so, treat it as an error - the same as a negative return code. For OpenSSL - the ssl_write documentation is here: http://www.openssl.org/docs/ssl/SSL_write.html
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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 for the latest news and downloads:
http://curl.haxx.se/
GIT
To download the very latest source off the GIT server do this:
git clone git://github.com/bagder/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.