curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, bind_curl_callback);
curl_easy_setopt(curl, CURLOPT_USERAGENT, COLLECTD_USERAGENT);
curl_easy_setopt(curl, CURLOPT_ERRORBUFFER, bind_curl_error);
curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, bind_curl_callback);
curl_easy_setopt(curl, CURLOPT_USERAGENT, COLLECTD_USERAGENT);
curl_easy_setopt(curl, CURLOPT_ERRORBUFFER, bind_curl_error);