Unknown option: "-3"
Unix manual page for CURLOPT_CERTINFO. (host=minya system=Darwin)
CURLOPT_CERTINFO(3) curl_easy_setopt options CURLOPT_CERTINFO(3)
NAME
CURLOPT_CERTINFO - request SSL certificate information
SYNOPSIS
#include <curl/curl.h>
CURLcode curl_easy_setopt(CURL *handle, CURLOPT_CERTINFO, long cert-
info);
DESCRIPTION
Pass a long set to 1 to enable libcurl's certificate chain info gath-
erer. With this enabled, libcurl will extract lots of information and
data about the certificates in the certificate chain used in the SSL
connection. This data may then be retrieved after a transfer using
curl_easy_getinfo(3) and its option CURLINFO_CERTINFO(3).
DEFAULT
0
PROTOCOLS
All TLS-based
EXAMPLE
TODO
AVAILABILITY
This option is supported by the OpenSSL, GnuTLS, NSS and GSKit back-
ends.
RETURN VALUE
Returns CURLE_OK if the option is supported, and CURLE_UNKNOWN_OPTION
if not.
SEE ALSO
CURLOPT_CAINFO(3), CURLOPT_SSL_VERIFYPEER(3),
libcurl 7.54.0 February 03, 2016 CURLOPT_CERTINFO(3)