download file from file:// prepended with libcurl in c++ - c++

Question

I was asked for my library management c++ project to get access to library file only by its file:// included URL...
I used Libcurl because of same tag words of it when I was searching.
is downloading of a file through Libcurl (as it said it's compatible) ,a right way to do it?
command line tool and library
for transferring data with URLs
Supports...
DICT, FILE, ...
the libcurl code was
#include <curl/curl.h>
int downloadTO(const void* downloadURL, const void* OUTPUT_FILE_NAME)
{
CURL *curl_handle;
static const char *pagefilename = (char*)OUTPUT_FILE_NAME;
FILE *pagefile;
curl_global_init(CURL_GLOBAL_ALL);
/* init the curl session */
curl_handle = curl_easy_init();
/* set URL to get here */
curl_easy_setopt(curl_handle, CURLOPT_URL, (char*)downloadURL);
/* Switch on full protocol/debug output while testing */
curl_easy_setopt(curl_handle, CURLOPT_VERBOSE, 1L);
/* disable progress meter, set to 0L to enable and disable debug output */
curl_easy_setopt(curl_handle, CURLOPT_NOPROGRESS, 1L);
/* send all data to this function */
curl_easy_setopt(curl_handle, CURLOPT_WRITEFUNCTION, write_data);
/* open the file */
pagefile = fopen(pagefilename, "wb");
if(pagefile)
{
/* write the page body to this file handle */
curl_easy_setopt(curl_handle, CURLOPT_WRITEDATA, pagefile);
/* get it! */
curl_easy_perform(curl_handle);
/* close the header file */
fclose(pagefile);
}
/* cleanup curl stuff */
curl_easy_cleanup(curl_handle);
return 0;
}
can I also get access to the file with its file:// prepended URL with the sockets?