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

NAME
       CURLOPT_TRANSFERTEXT - request a text based transfer for FTP

SYNOPSIS
       #include <curl/curl.h>

       CURLcode   curl_easy_setopt(CURL  *handle,  CURLOPT_TRANSFERTEXT,  long
       text);

DESCRIPTION
       A parameter set to 1 tells the library to use ASCII mode for FTP trans-
       fers, instead of the default binary transfer. For win32 systems it does
       not set the stdout to binary mode.  This  option  can  be  usable  when
       transferring  text data between systems with different views on certain
       characters, such as newlines or similar.

       libcurl does not do a complete ASCII conversion when doing ASCII trans-
       fers  over  FTP. This is a known limitation/flaw that nobody has recti-
       fied. libcurl simply sets the mode to ASCII  and  performs  a  standard
       transfer.

DEFAULT
       0, disabled

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_CRLF(3),

libcurl 7.54.0                 February 03, 2016       CURLOPT_TRANSFERTEXT(3)