Return to url2file.c CVS log

Up to [ELWIX - Embedded LightWeight unIX -] / embedaddon / curl / docs / examples

Annotation of embedaddon/curl/docs/examples/url2file.c, revision 1.1.1.1

1.1       misho       1: /***************************************************************************
                      2:  *                                  _   _ ____  _
                      3:  *  Project                     ___| | | |  _ \| |
                      4:  *                             / __| | | | |_) | |
                      5:  *                            | (__| |_| |  _ <| |___
                      6:  *                             \___|\___/|_| \_\_____|
                      7:  *
                      8:  * Copyright (C) 1998 - 2019, 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:  * Download a given URL into a local file named page.out.
                     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(int argc, char *argv[])
                     39: {
                     40:   CURL *curl_handle;
                     41:   static const char *pagefilename = "page.out";
                     42:   FILE *pagefile;
                     43: 
                     44:   if(argc < 2) {
                     45:     printf("Usage: %s <URL>\n", argv[0]);
                     46:     return 1;
                     47:   }
                     48: 
                     49:   curl_global_init(CURL_GLOBAL_ALL);
                     50: 
                     51:   /* init the curl session */
                     52:   curl_handle = curl_easy_init();
                     53: 
                     54:   /* set URL to get here */
                     55:   curl_easy_setopt(curl_handle, CURLOPT_URL, argv[1]);
                     56: 
                     57:   /* Switch on full protocol/debug output while testing */
                     58:   curl_easy_setopt(curl_handle, CURLOPT_VERBOSE, 1L);
                     59: 
                     60:   /* disable progress meter, set to 0L to enable it */
                     61:   curl_easy_setopt(curl_handle, CURLOPT_NOPROGRESS, 1L);
                     62: 
                     63:   /* send all data to this function  */
                     64:   curl_easy_setopt(curl_handle, CURLOPT_WRITEFUNCTION, write_data);
                     65: 
                     66:   /* open the file */
                     67:   pagefile = fopen(pagefilename, "wb");
                     68:   if(pagefile) {
                     69: 
                     70:     /* write the page body to this file handle */
                     71:     curl_easy_setopt(curl_handle, CURLOPT_WRITEDATA, pagefile);
                     72: 
                     73:     /* get it! */
                     74:     curl_easy_perform(curl_handle);
                     75: 
                     76:     /* close the header file */
                     77:     fclose(pagefile);
                     78:   }
                     79: 
                     80:   /* cleanup curl stuff */
                     81:   curl_easy_cleanup(curl_handle);
                     82: 
                     83:   curl_global_cleanup();
                     84: 
                     85:   return 0;
                     86: }