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CURLOPT_FTPSSLAUTH(3) curl_easy_setopt options CURLOPT_FTPSSLAUTH(3)

NAME

CURLOPT_FTPSSLAUTH - order in which to attempt TLS vs SSL

SYNOPSIS

#include <curl/curl.h>

CURLcode curl_easy_setopt(CURL *handle, CURLOPT_FTPSSLAUTH, long order);

DESCRIPTION

Pass a long using one of the values from below, to alter how libcurl issues "AUTH TLS" or "AUTH SSL" when FTP over SSL is activated. This is only interesting if CURLOPT_USE_SSL(3) is also set.

Possible order values:

Allow libcurl to decide.
Try "AUTH SSL" first, and only if that fails try "AUTH TLS".
Try "AUTH TLS" first, and only if that fails try "AUTH SSL".

DEFAULT

CURLFTPAUTH_DEFAULT

PROTOCOLS

FTP

EXAMPLE

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_TRY);
/* funny server, ask for SSL before TLS */
curl_easy_setopt(curl, CURLOPT_FTPSSLAUTH, CURLFTPAUTH_SSL);
ret = curl_easy_perform(curl);
curl_easy_cleanup(curl); }

AVAILABILITY

Added in 7.12.2

RETURN VALUE

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

SEE ALSO

CURLOPT_USE_SSL(3), CURLOPT_FTP_SSL_CCC(3),

September 8, 2021 libcurl 7.79.1