Unknown option: "-3"
Unix manual page for CURLOPT_XFERINFODATA. (host=minya system=Darwin)
CURLOPT_XFERINFODATA(3) curl_easy_setopt options CURLOPT_XFERINFODATA(3)
NAME
CURLOPT_XFERINFODATA - custom pointer passed to the progress callback
SYNOPSIS
#include <curl/curl.h>
CURLcode curl_easy_setopt(CURL *handle, CURLOPT_XFERINFODATA, void
*pointer);
DESCRIPTION
Pass a pointer that will be untouched by libcurl and passed as the
first argument in the progress callback set with CURLOPT_XFERINFOFUNC-
TION(3).
This is an alias for CURLOPT_PROGRESSDATA(3).
DEFAULT
The default value of this parameter is NULL.
PROTOCOLS
All
EXAMPLE
https://curl.haxx.se/libcurl/c/progressfunc.html
AVAILABILITY
Added in 7.32.0
RETURN VALUE
Returns CURLE_OK
SEE ALSO
CURLOPT_XFERINFOFUNCTION(3), CURLOPT_XFERINFOFUNCTION(3),
libcurl 7.54.0 February 03, 2016 CURLOPT_XFERINFODATA(3)