CURLOPT_NOBODY - do the request without getting the body
#include <curl/curl.h>
CURLcode curl_easy_setopt(CURL *handle, CURLOPT_NOBODY, long opt);
A long parameter set to 1 tells libcurl to not include the body-part in the output. For HTTP(S), this makes libcurl do a HEAD request. For most other protocols ie means just not asking for transferring the body data.
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