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#include <unistd.h> 31 32#include <curl/curl.h> 33 34static size_t write_data(void *ptr, size_t size, size_t nmemb, void *stream) 35{ 36 size_t written = fwrite(ptr, size, nmemb, (FILE *)stream); 37 return written; 38} 39 40int main(void) 41{ 42 CURL *curl_handle; 43 static const char *headerfilename = "head.out"; 44 FILE *headerfile; 45 static const char *bodyfilename = "body.out"; 46 FILE *bodyfile; 47 48 curl_global_init(CURL_GLOBAL_ALL); 49 50 /* init the curl session */ 51 curl_handle = curl_easy_init(); 52 53 /* set URL to get */ 54 curl_easy_setopt(curl_handle, CURLOPT_URL, "https://example.com"); 55 56 /* no progress meter please */ 57 curl_easy_setopt(curl_handle, CURLOPT_NOPROGRESS, 1L); 58 59 /* send all data to this function */ 60 curl_easy_setopt(curl_handle, CURLOPT_WRITEFUNCTION, write_data); 61 62 /* open the header file */ 63 headerfile = fopen(headerfilename, "wb"); 64 if(!headerfile) { 65 curl_easy_cleanup(curl_handle); 66 return -1; 67 } 68 69 /* open the body file */ 70 bodyfile = fopen(bodyfilename, "wb"); 71 if(!bodyfile) { 72 curl_easy_cleanup(curl_handle); 73 fclose(headerfile); 74 return -1; 75 } 76 77 /* we want the headers be written to this file handle */ 78 curl_easy_setopt(curl_handle, CURLOPT_HEADERDATA, headerfile); 79 80 /* we want the body be written to this file handle instead of stdout */ 81 curl_easy_setopt(curl_handle, CURLOPT_WRITEDATA, bodyfile); 82 83 /* get it! */ 84 curl_easy_perform(curl_handle); 85 86 /* close the header file */ 87 fclose(headerfile); 88 89 /* close the body file */ 90 fclose(bodyfile); 91 92 /* cleanup curl stuff */ 93 curl_easy_cleanup(curl_handle); 94 95 return 0; 96} 97