curl / libcurl / API / curl_easy_setopt / CURLOPT_FTP_SSL_CCC

CURLOPT_FTP_SSL_CCC explained

NAME

CURLOPT_FTP_SSL_CCC - switch off SSL again with FTP after auth

SYNOPSIS

#include <curl/curl.h>

CURLcode curl_easy_setopt(CURL *handle, CURLOPT_FTP_SSL_CCC,   long how);

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

CURLFTPSSL_CCC_NONE

Don't attempt to use CCC.

CURLFTPSSL_CCC_PASSIVE

Do not initiate the shutdown, but wait for the server to do it. Do not send a reply.

CURLFTPSSL_CCC_ACTIVE

Initiate the shutdown and wait for a reply.

DEFAULT

CURLFTPSSL_CCC_NONE

PROTOCOLS

FTP

EXAMPLE

TODO

AVAILABILITY

Added in 7.16.1

RETURN VALUE

Returns CURLE_OK if the option is supported, and CURLE_UNKNOWN_OPTION if not.

SEE ALSO

CURLOPT_USE_SSL, CURLOPT_FTPSSLAUTH

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