quickjs-tart

quickjs-based runtime for wallet-core logic
Log | Files | Refs | README | LICENSE

ftpuploadfrommem.c (3912B)

      1 /***************************************************************************
      2  *                                  _   _ ____  _
      3  *  Project                     ___| | | |  _ \| |
      4  *                             / __| | | | |_) | |
      5  *                            | (__| |_| |  _ <| |___
      6  *                             \___|\___/|_| \_\_____|
      7  *
      8  * Copyright (C) Daniel Stenberg, <daniel@haxx.se>, et al.
      9  *
     10  * This software is licensed as described in the file COPYING, which
     11  * you should have received as part of this distribution. The terms
     12  * are also available at https://curl.se/docs/copyright.html.
     13  *
     14  * You may opt to use, copy, modify, merge, publish, distribute and/or sell
     15  * copies of the Software, and permit persons to whom the Software is
     16  * furnished to do so, under the terms of the COPYING file.
     17  *
     18  * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
     19  * KIND, either express or implied.
     20  *
     21  * SPDX-License-Identifier: curl
     22  *
     23  ***************************************************************************/
     24 /* <DESC>
     25  * FTP upload a file from memory
     26  * </DESC>
     27  */
     28 #include <stdio.h>
     29 #include <string.h>
     30 #include <curl/curl.h>
     31 
     32 static const char data[]=
     33   "Lorem ipsum dolor sit amet, consectetur adipiscing elit. "
     34   "Nam rhoncus odio id venenatis volutpat. Vestibulum dapibus "
     35   "bibendum ullamcorper. Maecenas finibus elit augue, vel "
     36   "condimentum odio maximus nec. In hac habitasse platea dictumst. "
     37   "Vestibulum vel dolor et turpis rutrum finibus ac at nulla. "
     38   "Vivamus nec neque ac elit blandit pretium vitae maximus ipsum. "
     39   "Quisque sodales magna vel erat auctor, sed pellentesque nisi "
     40   "rhoncus. Donec vehicula maximus pretium. Aliquam eu tincidunt "
     41   "lorem.";
     42 
     43 struct WriteThis {
     44   const char *readptr;
     45   size_t sizeleft;
     46 };
     47 
     48 static size_t read_callback(char *ptr, size_t size, size_t nmemb, void *userp)
     49 {
     50   struct WriteThis *upload = (struct WriteThis *)userp;
     51   size_t max = size*nmemb;
     52 
     53   if(max < 1)
     54     return 0;
     55 
     56   if(upload->sizeleft) {
     57     size_t copylen = max;
     58     if(copylen > upload->sizeleft)
     59       copylen = upload->sizeleft;
     60     memcpy(ptr, upload->readptr, copylen);
     61     upload->readptr += copylen;
     62     upload->sizeleft -= copylen;
     63     return copylen;
     64   }
     65 
     66   return 0;                          /* no more data left to deliver */
     67 }
     68 
     69 int main(void)
     70 {
     71   CURL *curl;
     72   CURLcode res;
     73 
     74   struct WriteThis upload;
     75 
     76   upload.readptr = data;
     77   upload.sizeleft = strlen(data);
     78 
     79   /* In Windows, this inits the Winsock stuff */
     80   res = curl_global_init(CURL_GLOBAL_DEFAULT);
     81   /* Check for errors */
     82   if(res != CURLE_OK) {
     83     fprintf(stderr, "curl_global_init() failed: %s\n",
     84             curl_easy_strerror(res));
     85     return 1;
     86   }
     87 
     88   /* get a curl handle */
     89   curl = curl_easy_init();
     90   if(curl) {
     91     /* First set the URL, the target file */
     92     curl_easy_setopt(curl, CURLOPT_URL,
     93                      "ftp://example.com/path/to/upload/file");
     94 
     95     /* User and password for the FTP login */
     96     curl_easy_setopt(curl, CURLOPT_USERPWD, "login:secret");
     97 
     98     /* Now specify we want to UPLOAD data */
     99     curl_easy_setopt(curl, CURLOPT_UPLOAD, 1L);
    100 
    101     /* we want to use our own read function */
    102     curl_easy_setopt(curl, CURLOPT_READFUNCTION, read_callback);
    103 
    104     /* pointer to pass to our read function */
    105     curl_easy_setopt(curl, CURLOPT_READDATA, &upload);
    106 
    107     /* get verbose debug output please */
    108     curl_easy_setopt(curl, CURLOPT_VERBOSE, 1L);
    109 
    110     /* Set the expected upload size. */
    111     curl_easy_setopt(curl, CURLOPT_INFILESIZE_LARGE,
    112                      (curl_off_t)upload.sizeleft);
    113 
    114     /* Perform the request, res gets the return code */
    115     res = curl_easy_perform(curl);
    116     /* Check for errors */
    117     if(res != CURLE_OK)
    118       fprintf(stderr, "curl_easy_perform() failed: %s\n",
    119               curl_easy_strerror(res));
    120 
    121     /* always cleanup */
    122     curl_easy_cleanup(curl);
    123   }
    124   curl_global_cleanup();
    125   return 0;
    126 }