Unknown option: "-3" Unix manual page for CURLOPT_FTP_USE_EPRT. (host=minya system=Darwin)
CURLOPT_FTP_USE_EPRT(3)    curl_easy_setopt options    CURLOPT_FTP_USE_EPRT(3)

NAME
       CURLOPT_FTP_USE_EPRT - enable/disable use of EPRT with FTP

SYNOPSIS
       #include <curl/curl.h>

       CURLcode   curl_easy_setopt(CURL  *handle,  CURLOPT_FTP_USE_EPRT,  long
       enabled);

DESCRIPTION
       Pass a long. If the value is 1, it tells curl to use the  EPRT  command
       when  doing  active  FTP  downloads  (which  is enabled by CURLOPT_FTP-
       PORT(3)). Using EPRT means that it  will  first  attempt  to  use  EPRT
       before using PORT, but if you pass zero to this option, it will not try
       using EPRT, only plain PORT.

       If the server is an IPv6 host, this option will have no effect as  EPRT
       is necessary then.

DEFAULT
PROTOCOLS
EXAMPLE
AVAILABILITY
       Added in 7.10.5

RETURN VALUE
       Returns CURLE_OK

SEE ALSO
       CURLOPT_FTP_USE_EPSV(3), CURLOPT_FTPPORT(3),

libcurl 7.54.0                 February 03, 2016       CURLOPT_FTP_USE_EPRT(3)