test_setopt(curl, CURLOPT_WRITEFUNCTION, fwrite);
test_setopt(curl, CURLOPT_READFUNCTION, read_callback);
test_setopt(curl, CURLOPT_HTTPPROXYTUNNEL, 1L);
- test_setopt(curl, CURLOPT_INFILESIZE, strlen(data));
+ test_setopt(curl, CURLOPT_INFILESIZE, (long)strlen(data));
test_setopt(curl, CURLOPT_HEADEROPT, CURLHEADER_UNIFIED);
res = curl_easy_perform(curl);