2014-06-19 11:59:00 -04:00
|
|
|
.\" **************************************************************************
|
|
|
|
|
.\" * _ _ ____ _
|
|
|
|
|
.\" * Project ___| | | | _ \| |
|
|
|
|
|
.\" * / __| | | | |_) | |
|
|
|
|
|
.\" * | (__| |_| | _ <| |___
|
|
|
|
|
.\" * \___|\___/|_| \_\_____|
|
|
|
|
|
.\" *
|
2017-05-31 05:56:28 -04:00
|
|
|
.\" * Copyright (C) 1998 - 2017, Daniel Stenberg, <daniel@haxx.se>, et al.
|
2014-06-19 11:59:00 -04:00
|
|
|
.\" *
|
|
|
|
|
.\" * This software is licensed as described in the file COPYING, which
|
|
|
|
|
.\" * you should have received as part of this distribution. The terms
|
2016-02-02 18:19:02 -05:00
|
|
|
.\" * are also available at https://curl.haxx.se/docs/copyright.html.
|
2014-06-19 11:59:00 -04:00
|
|
|
.\" *
|
|
|
|
|
.\" * 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
|
2017-05-31 05:56:28 -04:00
|
|
|
.nf
|
|
|
|
|
CURL *curl = curl_easy_init();
|
|
|
|
|
if(curl) {
|
|
|
|
|
curl_easy_setopt(curl, CURLOPT_URL, "ftp://example.com/file.txt");
|
|
|
|
|
curl_easy_setopt(curl, CURLOPT_USE_SSL, CURLUSESSL_CONTROL);
|
|
|
|
|
/* go back to clear-text FTP after authenticating */
|
|
|
|
|
curl_easy_setopt(curl, CURLOPT_FTP_SSL_CCC, CURLFTPSSL_CCC_ACTIVE);
|
|
|
|
|
ret = curl_easy_perform(curl);
|
|
|
|
|
curl_easy_cleanup(curl);
|
|
|
|
|
}
|
|
|
|
|
.fi
|
2014-06-19 11:59:00 -04:00
|
|
|
.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), "
|
