xref: /qemu/contrib/elf2dmp/download.c (revision 0df750e9)
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     curl_easy_setopt(curl, CURLOPT_URL, url);
29     curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, NULL);
30     curl_easy_setopt(curl, CURLOPT_WRITEDATA, file);
31     curl_easy_setopt(curl, CURLOPT_FOLLOWLOCATION, 1);
32     curl_easy_setopt(curl, CURLOPT_NOPROGRESS, 0);
33 
34     if (curl_easy_perform(curl) != CURLE_OK) {
35         err = 1;
36         fclose(file);
37         unlink(name);
38         goto out_curl;
39     }
40 
41     err = fclose(file);
42 
43 out_curl:
44     curl_easy_cleanup(curl);
45 
46     return err;
47 }
48