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/*************************************************************************** * _ _ ____ _ * Project ___| | | | _ \| | * / __| | | | |_) | | * | (__| |_| | _ <| |___ * \___|\___/|_| \_\_____| * * Copyright (C) 1998 - 2020, Daniel Stenberg, <[email protected]>, et al. * * This software is licensed as described in the file COPYING, which * you should have received as part of this distribution. The terms * are also available at https://curl.se/docs/copyright.html. * * You may opt to use, copy, modify, merge, publish, distribute and/or sell * copies of the Software, and permit persons to whom the Software is * furnished to do so, under the terms of the COPYING file. * * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY * KIND, either express or implied. * ***************************************************************************/ /* <DESC> * Simple HTTP GET that stores the headers in a separate file * </DESC> */ #include <stdio.h> #include <stdlib.h> #include <unistd.h> #include <curl/curl.h> static size_t write_data(void *ptr, size_t size, size_t nmemb, void *stream) { size_t written = fwrite(ptr, size, nmemb, (FILE *)stream); return written; } int main(void) { CURL *curl_handle; static const char *headerfilename = "head.out"; FILE *headerfile; static const char *bodyfilename = "body.out"; FILE *bodyfile; curl_global_init(CURL_GLOBAL_ALL); /* init the curl session */ curl_handle = curl_easy_init(); /* set URL to get */ curl_easy_setopt(curl_handle, CURLOPT_URL, "https://example.com"); /* no progress meter please */ curl_easy_setopt(curl_handle, CURLOPT_NOPROGRESS, 1L); /* send all data to this function */ curl_easy_setopt(curl_handle, CURLOPT_WRITEFUNCTION, write_data); /* open the header file */ headerfile = fopen(headerfilename, "wb"); if(!headerfile) { curl_easy_cleanup(curl_handle); return -1; } /* open the body file */ bodyfile = fopen(bodyfilename, "wb"); if(!bodyfile) { curl_easy_cleanup(curl_handle); fclose(headerfile); return -1; } /* we want the headers be written to this file handle */ curl_easy_setopt(curl_handle, CURLOPT_HEADERDATA, headerfile); /* we want the body be written to this file handle instead of stdout */ curl_easy_setopt(curl_handle, CURLOPT_WRITEDATA, bodyfile); /* get it! */ curl_easy_perform(curl_handle); /* close the header file */ fclose(headerfile); /* close the body file */ fclose(bodyfile); /* cleanup curl stuff */ curl_easy_cleanup(curl_handle); return 0; }