man curl_easy_init (Fonctions bibliothèques) - Start a libcurl easy session
NAME
curl_easy_init - Start a libcurl easy session
SYNOPSIS
#include <curl/curl.h>
CURL *curl_easy_init( );
DESCRIPTION
This function must be the first function to call, and it returns a CURL easy handle that you must use as input to other easy-functions. curl_easy_init initializes curl and this call MUST have a corresponding call to curl_easy_cleanup(3) when the operation is complete.
RETURN VALUE
If this function returns NULL, something went wrong and you cannot use the other curl functions.