quickjs-tart

quickjs-based runtime for wallet-core logic
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multi-post.c (3117B)

      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  * using the multi interface to do a multipart formpost without blocking
     26  * </DESC>
     27  */
     28 
     29 #include <stdio.h>
     30 #include <string.h>
     31 
     32 #include <curl/curl.h>
     33 
     34 int main(void)
     35 {
     36   CURL *curl;
     37 
     38   CURLM *multi_handle;
     39   int still_running = 0;
     40 
     41   curl_mime *form = NULL;
     42   curl_mimepart *field = NULL;
     43   struct curl_slist *headerlist = NULL;
     44   static const char buf[] = "Expect:";
     45 
     46   curl = curl_easy_init();
     47   multi_handle = curl_multi_init();
     48 
     49   if(curl && multi_handle) {
     50     /* Create the form */
     51     form = curl_mime_init(curl);
     52 
     53     /* Fill in the file upload field */
     54     field = curl_mime_addpart(form);
     55     curl_mime_name(field, "sendfile");
     56     curl_mime_filedata(field, "multi-post.c");
     57 
     58     /* Fill in the filename field */
     59     field = curl_mime_addpart(form);
     60     curl_mime_name(field, "filename");
     61     curl_mime_data(field, "multi-post.c", CURL_ZERO_TERMINATED);
     62 
     63     /* Fill in the submit field too, even if this is rarely needed */
     64     field = curl_mime_addpart(form);
     65     curl_mime_name(field, "submit");
     66     curl_mime_data(field, "send", CURL_ZERO_TERMINATED);
     67 
     68     /* initialize custom header list (stating that Expect: 100-continue is not
     69        wanted */
     70     headerlist = curl_slist_append(headerlist, buf);
     71 
     72     /* what URL that receives this POST */
     73     curl_easy_setopt(curl, CURLOPT_URL, "https://www.example.com/upload.cgi");
     74     curl_easy_setopt(curl, CURLOPT_VERBOSE, 1L);
     75 
     76     curl_easy_setopt(curl, CURLOPT_HTTPHEADER, headerlist);
     77     curl_easy_setopt(curl, CURLOPT_MIMEPOST, form);
     78 
     79     curl_multi_add_handle(multi_handle, curl);
     80 
     81     do {
     82       CURLMcode mc = curl_multi_perform(multi_handle, &still_running);
     83 
     84       if(still_running)
     85         /* wait for activity, timeout or "nothing" */
     86         mc = curl_multi_poll(multi_handle, NULL, 0, 1000, NULL);
     87 
     88       if(mc)
     89         break;
     90     } while(still_running);
     91 
     92     curl_multi_cleanup(multi_handle);
     93 
     94     /* always cleanup */
     95     curl_easy_cleanup(curl);
     96 
     97     /* then cleanup the form */
     98     curl_mime_free(form);
     99 
    100     /* free slist */
    101     curl_slist_free_all(headerlist);
    102   }
    103   return 0;
    104 }