Mercurial > hgrepos > Python2 > PyMuPDF

annotate mupdf-source/thirdparty/curl/docs/examples/ftpgetinfo.c @ 16:bd5bb0742cc3

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A "check" target that checks for all venv and host prerequisites
author Franz Glasner <fzglas.hg@dom66.de>
date Wed, 17 Sep 2025 21:11:25 +0200
parents b50eed0cc0ef
children
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1 /***************************************************************************
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2 * _ _ ____ _
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3 * Project ___| | | | _ \| |
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4 * / __| | | | |_) | |
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5 * | (__| |_| | _ <| |___
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6 * \___|\___/|_| \_\_____|
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7 *
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8 * Copyright (C) 1998 - 2019, Daniel Stenberg, <daniel@haxx.se>, et al.
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9 *
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10 * This software is licensed as described in the file COPYING, which
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11 * you should have received as part of this distribution. The terms
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12 * are also available at https://curl.haxx.se/docs/copyright.html.
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13 *
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14 * You may opt to use, copy, modify, merge, publish, distribute and/or sell
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15 * copies of the Software, and permit persons to whom the Software is
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16 * furnished to do so, under the terms of the COPYING file.
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17 *
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18 * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
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19 * KIND, either express or implied.
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20 *
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21 ***************************************************************************/
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22 #include <stdio.h>
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23 #include <string.h>
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25 #include <curl/curl.h>
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27 /* <DESC>
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28 * Checks a single file's size and mtime from an FTP server.
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29 * </DESC>
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30 */
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32 static size_t throw_away(void *ptr, size_t size, size_t nmemb, void *data)
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33 {
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34 (void)ptr;
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35 (void)data;
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36 /* we are not interested in the headers itself,
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37 so we only return the size we would have saved ... */
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38 return (size_t)(size * nmemb);
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39 }
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41 int main(void)
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42 {
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43 char ftpurl[] = "ftp://ftp.example.com/gnu/binutils/binutils-2.19.1.tar.bz2";
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44 CURL *curl;
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45 CURLcode res;
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46 long filetime = -1;
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47 double filesize = 0.0;
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48 const char *filename = strrchr(ftpurl, '/') + 1;
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50 curl_global_init(CURL_GLOBAL_DEFAULT);
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52 curl = curl_easy_init();
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53 if(curl) {
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54 curl_easy_setopt(curl, CURLOPT_URL, ftpurl);
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55 /* No download if the file */
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56 curl_easy_setopt(curl, CURLOPT_NOBODY, 1L);
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57 /* Ask for filetime */
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58 curl_easy_setopt(curl, CURLOPT_FILETIME, 1L);
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59 curl_easy_setopt(curl, CURLOPT_HEADERFUNCTION, throw_away);
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60 curl_easy_setopt(curl, CURLOPT_HEADER, 0L);
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61 /* Switch on full protocol/debug output */
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62 /* curl_easy_setopt(curl, CURLOPT_VERBOSE, 1L); */
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64 res = curl_easy_perform(curl);
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66 if(CURLE_OK == res) {
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67 /* https://curl.haxx.se/libcurl/c/curl_easy_getinfo.html */
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68 res = curl_easy_getinfo(curl, CURLINFO_FILETIME, &filetime);
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69 if((CURLE_OK == res) && (filetime >= 0)) {
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70 time_t file_time = (time_t)filetime;
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71 printf("filetime %s: %s", filename, ctime(&file_time));
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72 }
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73 res = curl_easy_getinfo(curl, CURLINFO_CONTENT_LENGTH_DOWNLOAD,
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74 &filesize);
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75 if((CURLE_OK == res) && (filesize>0.0))
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76 printf("filesize %s: %0.0f bytes\n", filename, filesize);
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77 }
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78 else {
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79 /* we failed */
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80 fprintf(stderr, "curl told us %d\n", res);
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81 }
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82
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83 /* always cleanup */
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84 curl_easy_cleanup(curl);
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85 }
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86
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87 curl_global_cleanup();
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89 return 0;
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90 }