CURLOPT_STDERR (3) Linux Manual Page
CURLOPT_STDERR – redirect stderr to another stream
Synopsis
#include <curl/curl.h> CURLcode curl_easy_setopt(CURL *handle, CURLOPT_STDERR, FILE *stream);
CURLOPT_STDERR – redirect stderr to another stream
CURLcode curl_easy_setopt(CURL *handle, CURLOPT_STDERR, FILE *stream);