mirror of
https://github.com/moparisthebest/curl
synced 2024-11-10 11:35:07 -05:00
3a6563d668
All plain C examples now (mostly) adhere to the curl code style. While they are only examples, they had diverted so much and contained all sorts of different mixed code styles by now. Having them use a unified style helps users and readability. Also, as they get copy-and-pasted widely by users, making sure they're clean and nice is a good idea. 573 checksrc warnings were addressed.
92 lines
2.9 KiB
C
92 lines
2.9 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 - 2016, 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 https://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 <stdio.h>
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#include <string.h>
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#include <curl/curl.h>
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/* <DESC>
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* Checks a single file's size and mtime from an FTP server.
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* </DESC>
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*/
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static size_t throw_away(void *ptr, size_t size, size_t nmemb, void *data)
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{
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(void)ptr;
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(void)data;
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/* we are not interested in the headers itself,
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so we only return the size we would have saved ... */
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return (size_t)(size * nmemb);
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}
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int main(void)
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{
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char ftpurl[] = "ftp://ftp.example.com/gnu/binutils/binutils-2.19.1.tar.bz2";
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CURL *curl;
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CURLcode res;
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long filetime = -1;
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double filesize = 0.0;
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const char *filename = strrchr(ftpurl, '/') + 1;
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curl_global_init(CURL_GLOBAL_DEFAULT);
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curl = curl_easy_init();
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if(curl) {
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curl_easy_setopt(curl, CURLOPT_URL, ftpurl);
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/* No download if the file */
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curl_easy_setopt(curl, CURLOPT_NOBODY, 1L);
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/* Ask for filetime */
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curl_easy_setopt(curl, CURLOPT_FILETIME, 1L);
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/* No header output: TODO 14.1 http-style HEAD output for ftp */
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curl_easy_setopt(curl, CURLOPT_HEADERFUNCTION, throw_away);
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curl_easy_setopt(curl, CURLOPT_HEADER, 0L);
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/* Switch on full protocol/debug output */
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/* curl_easy_setopt(curl, CURLOPT_VERBOSE, 1L); */
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res = curl_easy_perform(curl);
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if(CURLE_OK == res) {
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/* https://curl.haxx.se/libcurl/c/curl_easy_getinfo.html */
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res = curl_easy_getinfo(curl, CURLINFO_FILETIME, &filetime);
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if((CURLE_OK == res) && (filetime >= 0)) {
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time_t file_time = (time_t)filetime;
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printf("filetime %s: %s", filename, ctime(&file_time));
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}
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res = curl_easy_getinfo(curl, CURLINFO_CONTENT_LENGTH_DOWNLOAD,
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&filesize);
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if((CURLE_OK == res) && (filesize>0.0))
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printf("filesize %s: %0.0f bytes\n", filename, filesize);
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}
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else {
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/* we failed */
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fprintf(stderr, "curl told us %d\n", res);
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}
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/* always cleanup */
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curl_easy_cleanup(curl);
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}
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curl_global_cleanup();
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return 0;
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}
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