1 /***************************************************************************
2 * _ _ ____ _
3 * Project ___| | | | _ \| |
4 * / __| | | | |_) | |
5 * | (__| |_| | _ <| |___
6 * \___|\___/|_| \_\_____|
7 *
8 * Copyright (C) 1998 - 2018, 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 * Simple HTTP GET that stores the headers in a separate file
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(void)38 int main(void)
39 {
40 CURL *curl_handle;
41 static const char *headerfilename = "head.out";
42 FILE *headerfile;
43 static const char *bodyfilename = "body.out";
44 FILE *bodyfile;
45
46 curl_global_init(CURL_GLOBAL_ALL);
47
48 /* init the curl session */
49 curl_handle = curl_easy_init();
50
51 /* set URL to get */
52 curl_easy_setopt(curl_handle, CURLOPT_URL, "https://example.com");
53
54 /* no progress meter please */
55 curl_easy_setopt(curl_handle, CURLOPT_NOPROGRESS, 1L);
56
57 /* send all data to this function */
58 curl_easy_setopt(curl_handle, CURLOPT_WRITEFUNCTION, write_data);
59
60 /* open the header file */
61 headerfile = fopen(headerfilename, "wb");
62 if(!headerfile) {
63 curl_easy_cleanup(curl_handle);
64 return -1;
65 }
66
67 /* open the body file */
68 bodyfile = fopen(bodyfilename, "wb");
69 if(!bodyfile) {
70 curl_easy_cleanup(curl_handle);
71 fclose(headerfile);
72 return -1;
73 }
74
75 /* we want the headers be written to this file handle */
76 curl_easy_setopt(curl_handle, CURLOPT_HEADERDATA, headerfile);
77
78 /* we want the body be written to this file handle instead of stdout */
79 curl_easy_setopt(curl_handle, CURLOPT_WRITEDATA, bodyfile);
80
81 /* get it! */
82 curl_easy_perform(curl_handle);
83
84 /* close the header file */
85 fclose(headerfile);
86
87 /* close the body file */
88 fclose(bodyfile);
89
90 /* cleanup curl stuff */
91 curl_easy_cleanup(curl_handle);
92
93 return 0;
94 }
95