1 /***************************************************************************
2 * _ _ ____ _
3 * Project ___| | | | _ \| |
4 * / __| | | | |_) | |
5 * | (__| |_| | _ <| |___
6 * \___|\___/|_| \_\_____|
7 *
8 * Copyright (C) Daniel Stenberg, <daniel@haxx.se>, et al.
9 *
10 * This software is licensed as described in the file COPYING, which
11 * you should have received as part of this distribution. The terms
12 * are also available at https://curl.se/docs/copyright.html.
13 *
14 * You may opt to use, copy, modify, merge, publish, distribute and/or sell
15 * copies of the Software, and permit persons to whom the Software is
16 * furnished to do so, under the terms of the COPYING file.
17 *
18 * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
19 * KIND, either express or implied.
20 *
21 * SPDX-License-Identifier: curl
22 *
23 ***************************************************************************/
24 /* <DESC>
25 * Download a given URL into a local file named page.out.
26 * </DESC>
27 */
28 #include <stdio.h>
29 #include <stdlib.h>
30
31 #include <curl/curl.h>
32
write_data(void * ptr,size_t size,size_t nmemb,void * stream)33 static size_t write_data(void *ptr, size_t size, size_t nmemb, void *stream)
34 {
35 size_t written = fwrite(ptr, size, nmemb, (FILE *)stream);
36 return written;
37 }
38
main(int argc,char * argv[])39 int main(int argc, char *argv[])
40 {
41 CURL *curl_handle;
42 static const char *pagefilename = "page.out";
43 FILE *pagefile;
44
45 if(argc < 2) {
46 printf("Usage: %s <URL>\n", argv[0]);
47 return 1;
48 }
49
50 curl_global_init(CURL_GLOBAL_ALL);
51
52 /* init the curl session */
53 curl_handle = curl_easy_init();
54
55 /* set URL to get here */
56 curl_easy_setopt(curl_handle, CURLOPT_URL, argv[1]);
57
58 /* Switch on full protocol/debug output while testing */
59 curl_easy_setopt(curl_handle, CURLOPT_VERBOSE, 1L);
60
61 /* disable progress meter, set to 0L to enable it */
62 curl_easy_setopt(curl_handle, CURLOPT_NOPROGRESS, 1L);
63
64 /* send all data to this function */
65 curl_easy_setopt(curl_handle, CURLOPT_WRITEFUNCTION, write_data);
66
67 /* open the file */
68 pagefile = fopen(pagefilename, "wb");
69 if(pagefile) {
70
71 /* write the page body to this file handle */
72 curl_easy_setopt(curl_handle, CURLOPT_WRITEDATA, pagefile);
73
74 /* get it! */
75 curl_easy_perform(curl_handle);
76
77 /* close the header file */
78 fclose(pagefile);
79 }
80
81 /* cleanup curl stuff */
82 curl_easy_cleanup(curl_handle);
83
84 curl_global_cleanup();
85
86 return 0;
87 }
88
