Using libcurl to download remote file in C

downloader.c

#include <stdio.h>
#include <curl/curl.h>

int main(int argc, char **argv)
{
    CURL *curl;
    FILE *fp;
    int result;

    // Output file
    fp = fopen(argv[2], "wb");

    // Initialize curl handler
    curl = curl_easy_init();

    // Set options of curl handlder
    curl_easy_setopt(curl, CURLOPT_URL, argv[1]);
    curl_easy_setopt(curl, CURLOPT_WRITEDATA, fp);
    curl_easy_setopt(curl, CURLOPT_FAILONERROR, 1L);

    // Download the file from specified url(argv[1])
    result = curl_easy_perform(curl);

    // Check result
    if (result == CURLE_OK)
        printf("Download successful!\n");
    else
        printf("ERROR: %s\n",curl_easy_strerror(result));

    fclose(fp);

    curl_easy_cleanup(curl);
    return 0;
}