CURLOPT_CHUNK_END_FUNCTION(3)                         Library Functions Manual

NAME
       CURLOPT_CHUNK_END_FUNCTION - callback after a transfer with FTP
       wildcard match

SYNOPSIS
       #include <curl/curl.h>

       long chunk_end_callback(void *ptr);

       CURLcode curl_easy_setopt(CURL *handle, CURLOPT_CHUNK_END_FUNCTION,
                                 chunk_end_callback);

DESCRIPTION
       Pass a pointer to your callback function, which should match the
       prototype shown above.

       This function gets called by libcurl as soon as a part of the stream
       has been transferred (or skipped).

       Return CURL_CHUNK_END_FUNC_OK if everything is fine or
       CURL_CHUNK_END_FUNC_FAIL to tell the lib to stop if some error
       occurred.

DEFAULT
       NULL

PROTOCOLS
       This functionality affects ftp only

EXAMPLE
       #include <stdio.h>

       struct callback_data {
          FILE *output;
       };

       static long file_is_downloaded(void *ptr)
       {
         struct callback_data *data = ptr;
         if(data->output) {
           fclose(data->output);
           data->output = 0x0;
         }
         return CURL_CHUNK_END_FUNC_OK;
       }

       int main()
       {
         /* data for callback */
         struct callback_data callback_info;

         CURL *curl = curl_easy_init();

         curl_easy_setopt(curl, CURLOPT_CHUNK_END_FUNCTION, file_is_downloaded);
         curl_easy_setopt(curl, CURLOPT_CHUNK_DATA, &callback_info);
       }

AVAILABILITY
       Added in curl 7.21.0

RETURN VALUE
       curl_easy_setopt(3) returns a CURLcode indicating success or error.

       CURLE_OK (0) means everything was OK, non-zero means an error occurred,
       see libcurl-errors(3).

SEE ALSO
       CURLOPT_CHUNK_BGN_FUNCTION(3), CURLOPT_WILDCARDMATCH(3)

libcurl                           2025-06-04     CURLOPT_CHUNK_END_FUNCTION(3)