1 /***************************************************************************
2 * _ _ ____ _
3 * Project ___| | | | _ \| |
4 * / __| | | | |_) | |
5 * | (__| |_| | _ <| |___
6 * \___|\___/|_| \_\_____|
7 *
8 * Copyright (C) 1998 - 2016, 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.haxx.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 ***************************************************************************/
22 /* <DESC>
23 * Download a given URL into a local file named page.out.
24 * </DESC>
25 */
26 #include <stdio.h>
27 #include <stdlib.h>
28 #include <unistd.h>
29
30 #include <curl/curl.h>
31
write_data(void * ptr,size_t size,size_t nmemb,void * stream)32 static size_t write_data(void *ptr, size_t size, size_t nmemb, void *stream)
33 {
34 size_t written = fwrite(ptr, size, nmemb, (FILE *)stream);
35 return written;
36 }
37
main(int argc,char * argv[])38 int main(int argc, char *argv[])
39 {
40 CURL *curl_handle;
41 static const char *pagefilename = "page.out";
42 FILE *pagefile;
43
44 if(argc < 2) {
45 printf("Usage: %s <URL>\n", argv[0]);
46 return 1;
47 }
48
49 curl_global_init(CURL_GLOBAL_ALL);
50
51 /* init the curl session */
52 curl_handle = curl_easy_init();
53
54 /* set URL to get here */
55 curl_easy_setopt(curl_handle, CURLOPT_URL, argv[1]);
56
57 /* Switch on full protocol/debug output while testing */
58 curl_easy_setopt(curl_handle, CURLOPT_VERBOSE, 1L);
59
60 /* disable progress meter, set to 0L to enable and disable debug output */
61 curl_easy_setopt(curl_handle, CURLOPT_NOPROGRESS, 1L);
62
63 /* send all data to this function */
64 curl_easy_setopt(curl_handle, CURLOPT_WRITEFUNCTION, write_data);
65
66 /* open the file */
67 pagefile = fopen(pagefilename, "wb");
68 if(pagefile) {
69
70 /* write the page body to this file handle */
71 curl_easy_setopt(curl_handle, CURLOPT_WRITEDATA, pagefile);
72
73 /* get it! */
74 curl_easy_perform(curl_handle);
75
76 /* close the header file */
77 fclose(pagefile);
78 }
79
80 /* cleanup curl stuff */
81 curl_easy_cleanup(curl_handle);
82
83 return 0;
84 }
85