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//opt/curlssl/share/man/man3/CURLOPT_SSL_CIPHER_LIST.3
.\" ************************************************************************** .\" * _ _ ____ _ .\" * Project ___| | | | _ \| | .\" * / __| | | | |_) | | .\" * | (__| |_| | _ <| |___ .\" * \___|\___/|_| \_\_____| .\" * .\" * Copyright (C) 1998 - 2014, Daniel Stenberg, <daniel@haxx.se>, et al. .\" * .\" * This software is licensed as described in the file COPYING, which .\" * you should have received as part of this distribution. The terms .\" * are also available at http://curl.haxx.se/docs/copyright.html. .\" * .\" * You may opt to use, copy, modify, merge, publish, distribute and/or sell .\" * copies of the Software, and permit persons to whom the Software is .\" * furnished to do so, under the terms of the COPYING file. .\" * .\" * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY .\" * KIND, either express or implied. .\" * .\" ************************************************************************** .\" .TH CURLOPT_SSL_CIPHER_LIST 3 "17 Jun 2014" "libcurl 7.37.0" "curl_easy_setopt options" .SH NAME CURLOPT_SSL_CIPHER_LIST \- specify ciphers to use for TLS .SH SYNOPSIS #include <curl/curl.h> CURLcode curl_easy_setopt(CURL *handle, CURLOPT_SSL_CIPHER_LIST, char *list); .SH DESCRIPTION Pass a char *, pointing to a zero terminated string holding the list of ciphers to use for the SSL connection. The list must be syntactically correct, it consists of one or more cipher strings separated by colons. Commas or spaces are also acceptable separators but colons are normally used, \&!, \&- and \&+ can be used as operators. For OpenSSL and GnuTLS valid examples of cipher lists include 'RC4-SHA', \'SHA1+DES\', 'TLSv1' and 'DEFAULT'. The default list is normally set when you compile OpenSSL. You'll find more details about cipher lists on this URL: http://www.openssl.org/docs/apps/ciphers.html For NSS, valid examples of cipher lists include 'rsa_rc4_128_md5', \'rsa_aes_128_sha\', etc. With NSS you don't add/remove ciphers. If one uses this option then all known ciphers are disabled and only those passed in are enabled. You'll find more details about the NSS cipher lists on this URL: http://git.fedorahosted.org/cgit/mod_nss.git/plain/docs/mod_nss.html#Directives .SH DEFAULT NULL, use internal default .SH PROTOCOLS All TLS based protocols: HTTPS, FTPS, IMAPS, POP3, SMTPS etc. .SH EXAMPLE TODO .SH AVAILABILITY If built TLS enabled. .SH RETURN VALUE Returns CURLE_OK if TLS is supported, CURLE_UNKNOWN_OPTION if not, or CURLE_OUT_OF_MEMORY if there was insufficient heap space. .SH "SEE ALSO" .BR CURLOPT_SSLVERSION "(3), " CURLOPT_USE_SSL "(3), "
