mirror of
https://github.com/curl/curl.git
synced 2024-11-21 01:16:58 +08:00
78 lines
2.2 KiB
C
78 lines
2.2 KiB
C
/*****************************************************************************
|
|
* _ _ ____ _
|
|
* Project ___| | | | _ \| |
|
|
* / __| | | | |_) | |
|
|
* | (__| |_| | _ <| |___
|
|
* \___|\___/|_| \_\_____|
|
|
*
|
|
*/
|
|
|
|
#include <stdio.h>
|
|
#include <string.h>
|
|
|
|
#include <curl/curl.h>
|
|
#include <curl/types.h>
|
|
#include <curl/easy.h>
|
|
|
|
/*
|
|
* This is an example showing how to check a single file's size and mtime
|
|
* from an FTP server.
|
|
*/
|
|
|
|
static size_t throw_away(void *ptr, size_t size, size_t nmemb, void *data)
|
|
{
|
|
(void)ptr;
|
|
(void)data;
|
|
/* we are not interested in the headers itself,
|
|
so we only return the size we would have saved ... */
|
|
return (size_t)(size * nmemb);
|
|
}
|
|
|
|
int main(void)
|
|
{
|
|
char ftpurl[] = "ftp://ftp.example.com/gnu/binutils/binutils-2.19.1.tar.bz2";
|
|
CURL *curl;
|
|
CURLcode res;
|
|
const time_t filetime;
|
|
const double filesize;
|
|
const char *filename = strrchr(ftpurl, '/') + 1;
|
|
|
|
curl_global_init(CURL_GLOBAL_DEFAULT);
|
|
|
|
curl = curl_easy_init();
|
|
if(curl) {
|
|
curl_easy_setopt(curl, CURLOPT_URL, ftpurl);
|
|
/* No download if the file */
|
|
curl_easy_setopt(curl, CURLOPT_NOBODY, 1L);
|
|
/* Ask for filetime */
|
|
curl_easy_setopt(curl, CURLOPT_FILETIME, 1L);
|
|
/* No header output: TODO 14.1 http-style HEAD output for ftp */
|
|
curl_easy_setopt(curl, CURLOPT_HEADERFUNCTION, throw_away);
|
|
curl_easy_setopt(curl, CURLOPT_HEADER, 0L);
|
|
/* Switch on full protocol/debug output */
|
|
/* curl_easy_setopt(curl, CURLOPT_VERBOSE, 1L); */
|
|
|
|
res = curl_easy_perform(curl);
|
|
|
|
if(CURLE_OK == res) {
|
|
/* http://curl.haxx.se/libcurl/c/curl_easy_getinfo.html */
|
|
res = curl_easy_getinfo(curl, CURLINFO_FILETIME, &filetime);
|
|
if((CURLE_OK == res) && filetime)
|
|
printf("filetime %s: %s", filename, ctime(&filetime));
|
|
res = curl_easy_getinfo(curl, CURLINFO_CONTENT_LENGTH_DOWNLOAD, &filesize);
|
|
if((CURLE_OK == res) && (filesize>0))
|
|
printf("filesize %s: %0.0f bytes\n", filename, filesize);
|
|
} else {
|
|
/* we failed */
|
|
fprintf(stderr, "curl told us %d\n", res);
|
|
}
|
|
|
|
/* always cleanup */
|
|
curl_easy_cleanup(curl);
|
|
}
|
|
|
|
curl_global_cleanup();
|
|
|
|
return 0;
|
|
}
|