mirror of
https://github.com/curl/curl.git
synced 2024-11-21 01:16:58 +08:00
84 lines
2.2 KiB
C
84 lines
2.2 KiB
C
/*****************************************************************************
|
|
* _ _ ____ _
|
|
* Project ___| | | | _ \| |
|
|
* / __| | | | |_) | |
|
|
* | (__| |_| | _ <| |___
|
|
* \___|\___/|_| \_\_____|
|
|
*
|
|
* $Id$
|
|
*/
|
|
|
|
#include <stdio.h>
|
|
|
|
#include <curl/curl.h>
|
|
#include <curl/types.h>
|
|
#include <curl/easy.h>
|
|
|
|
/*
|
|
* This is an example showing how to get a single file from an FTP server.
|
|
* It delays the actual destination file creation until the first write
|
|
* callback so that it won't create an empty file in case the remote file
|
|
* doesn't exist or something else fails.
|
|
*/
|
|
|
|
struct FtpFile {
|
|
char *filename;
|
|
FILE *stream;
|
|
};
|
|
|
|
int my_fwrite(void *buffer, size_t size, size_t nmemb, void *stream)
|
|
{
|
|
struct FtpFile *out=(struct FtpFile *)stream;
|
|
if(out && !out->stream) {
|
|
/* open file for writing */
|
|
out->stream=fopen(out->filename, "wb");
|
|
if(!out->stream)
|
|
return -1; /* failure, can't open file to write */
|
|
}
|
|
return fwrite(buffer, size, nmemb, out->stream);
|
|
}
|
|
|
|
|
|
int main(void)
|
|
{
|
|
CURL *curl;
|
|
CURLcode res;
|
|
struct FtpFile ftpfile={
|
|
"curl.tar.gz", /* name to store the file as if succesful */
|
|
NULL
|
|
};
|
|
|
|
curl_global_init(CURL_GLOBAL_DEFAULT);
|
|
|
|
curl = curl_easy_init();
|
|
if(curl) {
|
|
/* Get curl 7.9.2 from sunet.se's FTP site: */
|
|
curl_easy_setopt(curl, CURLOPT_URL,
|
|
"ftp://ftp.sunet.se/pub/www/utilities/curl/curl-7.9.2.tar.gz");
|
|
/* Define our callback to get called when there's data to be written */
|
|
curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, my_fwrite);
|
|
/* Set a pointer to our struct to pass to the callback */
|
|
curl_easy_setopt(curl, CURLOPT_FILE, &ftpfile);
|
|
|
|
/* Switch on full protocol/debug output */
|
|
curl_easy_setopt(curl, CURLOPT_VERBOSE, TRUE);
|
|
|
|
res = curl_easy_perform(curl);
|
|
|
|
/* always cleanup */
|
|
curl_easy_cleanup(curl);
|
|
|
|
if(CURLE_OK != res) {
|
|
/* we failed */
|
|
fprintf(stderr, "curl told us %d\n", res);
|
|
}
|
|
}
|
|
|
|
if(ftpfile.stream)
|
|
fclose(ftpfile.stream); /* close the local file */
|
|
|
|
curl_global_cleanup();
|
|
|
|
return 0;
|
|
}
|