docs/libcurl/opts/CURLOPT_CHUNK_END_FUNCTION.3

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.TH CURLOPT_CHUNK_END_FUNCTION 3 "November 04, 2020" "libcurl 7.80.0" "curl_easy_setopt options"

.SH NAME
CURLOPT_CHUNK_END_FUNCTION \- callback after a transfer with FTP wildcardmatch
.SH SYNOPSIS
.nf
#include <curl/curl.h>

long chunk_end_callback(void *ptr);

CURLcode curl_easy_setopt(CURL *handle, CURLOPT_CHUNK_END_FUNCTION,
                          chunk_end_callback);
.SH 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 \fICURL_CHUNK_END_FUNC_OK\fP if everything is fine or
\fBCURL_CHUNK_END_FUNC_FAIL\fP to tell the lib to stop if some error occurred.
.SH DEFAULT
NULL
.SH PROTOCOLS
FTP
.SH EXAMPLE
.nf
static long file_is_downloaded(struct callback_data *data)
{
  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_easy_setopt(curl, CURLOPT_CHUNK_END_FUNCTION, file_is_downloaded);
  curl_easy_setopt(curl, CURLOPT_CHUNK_DATA, &callback_info);
}
.fi
.SH AVAILABILITY
Added in 7.21.0
.SH RETURN VALUE
Returns CURLE_OK if the option is supported, and CURLE_UNKNOWN_OPTION if not.
.SH "SEE ALSO"
.BR CURLOPT_WILDCARDMATCH "(3), " CURLOPT_CHUNK_BGN_FUNCTION "(3), "