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 * Simple HTTP GET that stores the headers in a separate file
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(void)39 int main(void)
40 {
41 CURL *curl_handle;
42 static const char *headerfilename = "head.out";
43 FILE *headerfile;
44 static const char *bodyfilename = "body.out";
45 FILE *bodyfile;
46
47 curl_global_init(CURL_GLOBAL_ALL);
48
49 /* init the curl session */
50 curl_handle = curl_easy_init();
51
52 /* set URL to get */
53 curl_easy_setopt(curl_handle, CURLOPT_URL, "https://example.com");
54
55 /* no progress meter please */
56 curl_easy_setopt(curl_handle, CURLOPT_NOPROGRESS, 1L);
57
58 /* send all data to this function */
59 curl_easy_setopt(curl_handle, CURLOPT_WRITEFUNCTION, write_data);
60
61 /* open the header file */
62 headerfile = fopen(headerfilename, "wb");
63 if(!headerfile) {
64 curl_easy_cleanup(curl_handle);
65 return -1;
66 }
67
68 /* open the body file */
69 bodyfile = fopen(bodyfilename, "wb");
70 if(!bodyfile) {
71 curl_easy_cleanup(curl_handle);
72 fclose(headerfile);
73 return -1;
74 }
75
76 /* we want the headers be written to this file handle */
77 curl_easy_setopt(curl_handle, CURLOPT_HEADERDATA, headerfile);
78
79 /* we want the body be written to this file handle instead of stdout */
80 curl_easy_setopt(curl_handle, CURLOPT_WRITEDATA, bodyfile);
81
82 /* get it! */
83 curl_easy_perform(curl_handle);
84
85 /* close the header file */
86 fclose(headerfile);
87
88 /* close the body file */
89 fclose(bodyfile);
90
91 /* cleanup curl stuff */
92 curl_easy_cleanup(curl_handle);
93
94 return 0;
95 }
96
