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CURLOPT_CHUNK_END_FUNCTION(3) Library Functions Manual CURLOPT_CHUNK_END_FUNCTION(3)

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(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 *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

Returns CURLE_OK if the option is supported, and CURLE_UNKNOWN_OPTION if not.

SEE ALSO

CURLOPT_CHUNK_BGN_FUNCTION(3), CURLOPT_WILDCARDMATCH(3)
2025-05-13 libcurl
Copyright 2011-2025 Jonas 'Sortie' Termansen and contributors.
Sortix's source code is free software under the ISC license.
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