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

NAME
       CURLOPT_FTP_USE_EPSV - enable/disable use of EPSV

SYNOPSIS
       #include <curl/curl.h>

       CURLcode   curl_easy_setopt(CURL  *handle,  CURLOPT_FTP_USE_EPSV,  long
       epsv);

DESCRIPTION
       Pass epsv as a long. If the value is 1, it tells curl to use  the  EPSV
       command  when  doing  passive FTP downloads (which it does by default).
       Using EPSV means that it will first attempt to use  EPSV  before  using
       PASV,  but if you pass zero to this option, it will not try using EPSV,
       only plain PASV.

       If the server is an IPv6 host, this option will have no  effect  as  of
       7.12.3.

DEFAULT
       1

PROTOCOLS
       FTP

EXAMPLE
       TODO

AVAILABILITY
       Along with FTP

RETURN VALUE
       Returns  CURLE_OK if FTP is supported, and CURLE_UNKNOWN_OPTION if not.

SEE ALSO
       CURLOPT_FTP_USE_EPRT(3), CURLOPT_FTPPORT(3),

libcurl 7.54.0                 February 03, 2016       CURLOPT_FTP_USE_EPSV(3)