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Annotation of embedaddon/curl/docs/examples/sepheaders.c, revision 1.1.1.1

1.1       misho       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: 
                     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: 
                     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: }