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

NAME
       CURLOPT_PORT - set remote port number to work with

SYNOPSIS
       #include <curl/curl.h>

       CURLcode curl_easy_setopt(CURL *handle, CURLOPT_PORT, long number);

DESCRIPTION
       This  option  sets  number  to be the remote port number to connect to,
       instead of the one specified in the URL or the  default  port  for  the
       used protocol.

       Usually,  you just let the URL decide which port to use but this allows
       the application to override that.

       While this option accepts a 'long', a port number is usually a  16  bit
       number  and  therefore using a port number over 65535 will cause a run-
       time error.

DEFAULT
       By default this is 0 which makes it not used.

PROTOCOLS
       Used for all protocols that speak to a port number.

EXAMPLE
       TODO

AVAILABILITY
       Always

RETURN VALUE
       Returns CURLE_OK

SEE ALSO
       CURLOPT_STDERR(3), CURLOPT_DEBUGFUNCTION(3),

libcurl 7.54.0                 February 03, 2016               CURLOPT_PORT(3)