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

NAME
       CURLINFO_PRIMARY_PORT - get the latest destination port number

SYNOPSIS
       #include <curl/curl.h>

       CURLcode  curl_easy_getinfo(CURL  *handle,  CURLINFO_PRIMARY_PORT, long
       *portp);

DESCRIPTION
       Pass a pointer to a long to receive the destination port  of  the  most
       recent connection done with this curl handle.

PROTOCOLS
       All

EXAMPLE
       TODO

AVAILABILITY
       Added in 7.21.0

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

SEE ALSO
       curl_easy_getinfo(3), curl_easy_setopt(3),

libcurl 7.54.0                 February 03, 2016      CURLINFO_PRIMARY_PORT(3)