NAME

       CURLOPT_FTPSSLAUTH - set order in which to attempt TLS vs SSL when using FTP

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:

       CURLFTPAUTH_DEFAULT
              Allow libcurl to decide.

       CURLFTPAUTH_SSL
              Try "AUTH SSL" first, and only if that fails try "AUTH TLS".

       CURLFTPAUTH_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),

libcurl 7.68.0                                    May 31, 2017                             CURLOPT_FTPSSLAUTH(3)