125 lines
3.8 KiB
C
125 lines
3.8 KiB
C
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/***************************************************************************
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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 - 2017, 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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/* <DESC>
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* FTP upload a file from memory
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* </DESC>
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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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static const char data[]=
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"Lorem ipsum dolor sit amet, consectetur adipiscing elit. "
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"Nam rhoncus odio id venenatis volutpat. Vestibulum dapibus "
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"bibendum ullamcorper. Maecenas finibus elit augue, vel "
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"condimentum odio maximus nec. In hac habitasse platea dictumst. "
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"Vestibulum vel dolor et turpis rutrum finibus ac at nulla. "
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"Vivamus nec neque ac elit blandit pretium vitae maximus ipsum. "
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"Quisque sodales magna vel erat auctor, sed pellentesque nisi "
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"rhoncus. Donec vehicula maximus pretium. Aliquam eu tincidunt "
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"lorem.";
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struct WriteThis {
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const char *readptr;
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size_t sizeleft;
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};
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static size_t read_callback(void *ptr, size_t size, size_t nmemb, void *userp)
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{
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struct WriteThis *upload = (struct WriteThis *)userp;
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size_t max = size*nmemb;
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if(max < 1)
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return 0;
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if(upload->sizeleft) {
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size_t copylen = max;
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if(copylen > upload->sizeleft)
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copylen = upload->sizeleft;
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memcpy(ptr, upload->readptr, copylen);
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upload->readptr += copylen;
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upload->sizeleft -= copylen;
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return copylen;
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}
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return 0; /* no more data left to deliver */
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}
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int main(void)
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{
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CURL *curl;
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CURLcode res;
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struct WriteThis upload;
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upload.readptr = data;
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upload.sizeleft = strlen(data);
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/* In windows, this will init the winsock stuff */
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res = curl_global_init(CURL_GLOBAL_DEFAULT);
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/* Check for errors */
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if(res != CURLE_OK) {
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fprintf(stderr, "curl_global_init() failed: %s\n",
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curl_easy_strerror(res));
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return 1;
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}
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/* get a curl handle */
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curl = curl_easy_init();
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if(curl) {
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/* First set the URL, the target file */
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curl_easy_setopt(curl, CURLOPT_URL,
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"ftp://example.com/path/to/upload/file");
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/* User and password for the FTP login */
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curl_easy_setopt(curl, CURLOPT_USERPWD, "login:secret");
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/* Now specify we want to UPLOAD data */
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curl_easy_setopt(curl, CURLOPT_UPLOAD, 1L);
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/* we want to use our own read function */
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curl_easy_setopt(curl, CURLOPT_READFUNCTION, read_callback);
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/* pointer to pass to our read function */
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curl_easy_setopt(curl, CURLOPT_READDATA, &upload);
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/* get verbose debug output please */
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curl_easy_setopt(curl, CURLOPT_VERBOSE, 1L);
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/* Set the expected upload size. */
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curl_easy_setopt(curl, CURLOPT_INFILESIZE_LARGE,
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(curl_off_t)upload.sizeleft);
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/* Perform the request, res will get the return code */
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res = curl_easy_perform(curl);
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/* Check for errors */
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if(res != CURLE_OK)
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fprintf(stderr, "curl_easy_perform() failed: %s\n",
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curl_easy_strerror(res));
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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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