Return to ftpget.c CVS log

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

Annotation of embedaddon/curl/docs/examples/ftpget.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: #include <stdio.h>
                     23: 
                     24: #include <curl/curl.h>
                     25: 
                     26: /* <DESC>
                     27:  * Get a single file from an FTP server.
                     28:  * </DESC>
                     29:  */
                     30: 
                     31: struct FtpFile {
                     32:   const char *filename;
                     33:   FILE *stream;
                     34: };
                     35: 
                     36: static size_t my_fwrite(void *buffer, size_t size, size_t nmemb, void *stream)
                     37: {
                     38:   struct FtpFile *out = (struct FtpFile *)stream;
                     39:   if(!out->stream) {
                     40:     /* open file for writing */
                     41:     out->stream = fopen(out->filename, "wb");
                     42:     if(!out->stream)
                     43:       return -1; /* failure, can't open file to write */
                     44:   }
                     45:   return fwrite(buffer, size, nmemb, out->stream);
                     46: }
                     47: 
                     48: 
                     49: int main(void)
                     50: {
                     51:   CURL *curl;
                     52:   CURLcode res;
                     53:   struct FtpFile ftpfile = {
                     54:     "curl.tar.gz", /* name to store the file as if successful */
                     55:     NULL
                     56:   };
                     57: 
                     58:   curl_global_init(CURL_GLOBAL_DEFAULT);
                     59: 
                     60:   curl = curl_easy_init();
                     61:   if(curl) {
                     62:     /*
                     63:      * You better replace the URL with one that works!
                     64:      */
                     65:     curl_easy_setopt(curl, CURLOPT_URL,
                     66:                      "ftp://ftp.example.com/curl/curl-7.9.2.tar.gz");
                     67:     /* Define our callback to get called when there's data to be written */
                     68:     curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, my_fwrite);
                     69:     /* Set a pointer to our struct to pass to the callback */
                     70:     curl_easy_setopt(curl, CURLOPT_WRITEDATA, &ftpfile);
                     71: 
                     72:     /* Switch on full protocol/debug output */
                     73:     curl_easy_setopt(curl, CURLOPT_VERBOSE, 1L);
                     74: 
                     75:     res = curl_easy_perform(curl);
                     76: 
                     77:     /* always cleanup */
                     78:     curl_easy_cleanup(curl);
                     79: 
                     80:     if(CURLE_OK != res) {
                     81:       /* we failed */
                     82:       fprintf(stderr, "curl told us %d\n", res);
                     83:     }
                     84:   }
                     85: 
                     86:   if(ftpfile.stream)
                     87:     fclose(ftpfile.stream); /* close the local file */
                     88: 
                     89:   curl_global_cleanup();
                     90: 
                     91:   return 0;
                     92: }