CURLINFO_CONTENT_LENGTH_UPLOAD - get the specified size of the upload
#include <curl/curl.h>
CURLcode curl_easy_getinfo(CURL *handle, CURLINFO_CONTENT_LENGTH_UPLOAD, double *content_length);
Pass a pointer to a double to receive the specified size of the upload. Since 7.19.4, this returns -1 if the size isn't known.
Returns CURLE_OK if the option is supported, and CURLE_UNKNOWN_OPTION if not.
curl_easy_getinfo (3), curl_easy_setopt (3)
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