.\" ************************************************************************** .\" * _ _ ____ _ .\" * 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_FTP_SSL_CCC 3 "19 Jun 2014" "libcurl 7.37.0" "curl_easy_setopt options" .SH NAME CURLOPT_FTP_SSL_CCC \- switch off SSL again with FTP after auth .SH SYNOPSIS #include <curl/curl.h> CURLcode curl_easy_setopt(CURL *handle, CURLOPT_FTP_SSL_CCC, long how); .SH DESCRIPTION If enabled, this option makes libcurl use CCC (Clear Command Channel). It shuts down the SSL/TLS layer after authenticating. The rest of the control channel communication will be unencrypted. This allows NAT routers to follow the FTP transaction. Pass a long using one of the values below .IP CURLFTPSSL_CCC_NONE Don't attempt to use CCC. .IP CURLFTPSSL_CCC_PASSIVE Do not initiate the shutdown, but wait for the server to do it. Do not send a reply. .IP CURLFTPSSL_CCC_ACTIVE Initiate the shutdown and wait for a reply. .SH DEFAULT CURLFTPSSL_CCC_NONE .SH PROTOCOLS FTP .SH EXAMPLE TODO .SH AVAILABILITY Added in 7.16.1 .SH RETURN VALUE Returns CURLE_OK if the option is supported, and CURLE_UNKNOWN_OPTION if not. .SH "SEE ALSO" .BR CURLOPT_USE_SSL "(3), " CURLOPT_FTPSSLAUTH "(3), "