149 lines
4.1 KiB
C
149 lines
4.1 KiB
C
/***************************************************************************
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* _ _ ____ _
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* Project ___| | | | _ \| |
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* / __| | | | |_) | |
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* | (__| |_| | _ <| |___
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* \___|\___/|_| \_\_____|
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*
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* Copyright (C) 1998 - 2014, Daniel Stenberg, <daniel@haxx.se>, et al.
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*
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* This software is licensed as described in the file COPYING, which
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* you should have received as part of this distribution. The terms
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* are also available at http://curl.haxx.se/docs/copyright.html.
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*
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* You may opt to use, copy, modify, merge, publish, distribute and/or sell
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* copies of the Software, and permit persons to whom the Software is
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* furnished to do so, under the terms of the COPYING file.
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*
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* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
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* KIND, either express or implied.
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*
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***************************************************************************/
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#include <curl/curl.h>
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#include <stdio.h>
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struct callback_data {
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FILE *output;
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};
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static long file_is_coming(struct curl_fileinfo *finfo,
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struct callback_data *data,
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int remains);
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static long file_is_downloaded(struct callback_data *data);
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static size_t write_it(char *buff, size_t size, size_t nmemb,
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void *cb_data);
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int main(int argc, char **argv)
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{
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int rc = CURLE_OK;
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/* curl easy handle */
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CURL *handle;
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/* help data */
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struct callback_data data = { 0 };
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/* global initialization */
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rc = curl_global_init(CURL_GLOBAL_ALL);
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if(rc)
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return rc;
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/* initialization of easy handle */
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handle = curl_easy_init();
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if(!handle) {
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curl_global_cleanup();
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return CURLE_OUT_OF_MEMORY;
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}
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/* turn on wildcard matching */
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curl_easy_setopt(handle, CURLOPT_WILDCARDMATCH, 1L);
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/* callback is called before download of concrete file started */
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curl_easy_setopt(handle, CURLOPT_CHUNK_BGN_FUNCTION, file_is_coming);
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/* callback is called after data from the file have been transferred */
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curl_easy_setopt(handle, CURLOPT_CHUNK_END_FUNCTION, file_is_downloaded);
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/* this callback will write contents into files */
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curl_easy_setopt(handle, CURLOPT_WRITEFUNCTION, write_it);
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/* put transfer data into callbacks */
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curl_easy_setopt(handle, CURLOPT_CHUNK_DATA, &data);
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curl_easy_setopt(handle, CURLOPT_WRITEDATA, &data);
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/* curl_easy_setopt(handle, CURLOPT_VERBOSE, 1L); */
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/* set an URL containing wildcard pattern (only in the last part) */
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if(argc == 2)
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curl_easy_setopt(handle, CURLOPT_URL, argv[1]);
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else
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curl_easy_setopt(handle, CURLOPT_URL, "ftp://example.com/test/*");
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/* and start transfer! */
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rc = curl_easy_perform(handle);
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curl_easy_cleanup(handle);
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curl_global_cleanup();
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return rc;
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}
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static long file_is_coming(struct curl_fileinfo *finfo,
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struct callback_data *data,
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int remains)
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{
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printf("%3d %40s %10luB ", remains, finfo->filename,
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(unsigned long)finfo->size);
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switch(finfo->filetype) {
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case CURLFILETYPE_DIRECTORY:
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printf(" DIR\n");
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break;
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case CURLFILETYPE_FILE:
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printf("FILE ");
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break;
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default:
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printf("OTHER\n");
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break;
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}
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if(finfo->filetype == CURLFILETYPE_FILE) {
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/* do not transfer files >= 50B */
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if(finfo->size > 50) {
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printf("SKIPPED\n");
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return CURL_CHUNK_BGN_FUNC_SKIP;
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}
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data->output = fopen(finfo->filename, "w");
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if(!data->output) {
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return CURL_CHUNK_BGN_FUNC_FAIL;
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}
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}
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return CURL_CHUNK_BGN_FUNC_OK;
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}
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static long file_is_downloaded(struct callback_data *data)
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{
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if(data->output) {
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printf("DOWNLOADED\n");
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fclose(data->output);
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data->output = 0x0;
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}
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return CURL_CHUNK_END_FUNC_OK;
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}
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static size_t write_it(char *buff, size_t size, size_t nmemb,
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void *cb_data)
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{
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struct callback_data *data = cb_data;
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size_t written = 0;
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if(data->output)
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written = fwrite(buff, size, nmemb, data->output);
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else
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/* listing output */
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written = fwrite(buff, size, nmemb, stdout);
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return written;
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}
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