contrib/elf2dmp/download.c

   1 /*
   2  * Copyright (c) 2018 Virtuozzo International GmbH
   3  *
   4  * This work is licensed under the terms of the GNU GPL, version 2 or later.
   5  *
   6  */
   7
   8 #include "qemu/osdep.h"
   9 #include <curl/curl.h>
  10 #include "download.h"
  11
  12 int download_url(const char *name, const char *url)
  13 {
  14     int err = 0;
  15     FILE *file;
  16     CURL *curl = curl_easy_init();
  17
  18     if (!curl) {
  19         return 1;
  20     }
  21
  22     file = fopen(name, "wb");
  23     if (!file) {
  24         err = 1;
  25         goto out_curl;
  26     }
  27
  28     if (curl_easy_setopt(curl, CURLOPT_URL, url) != CURLE_OK
  29             || curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, NULL) != CURLE_OK
  30             || curl_easy_setopt(curl, CURLOPT_WRITEDATA, file) != CURLE_OK
  31             || curl_easy_setopt(curl, CURLOPT_FOLLOWLOCATION, 1) != CURLE_OK
  32             || curl_easy_setopt(curl, CURLOPT_NOPROGRESS, 0) != CURLE_OK
  33             || curl_easy_perform(curl) != CURLE_OK) {
  34         unlink(name);
  35         fclose(file);
  36         err = 1;
  37     } else {
  38         err = fclose(file);
  39     }
  40
  41 out_curl:
  42     curl_easy_cleanup(curl);
  43
  44     return err;
  45 }