CURLOPT_APPEND(3) Introduction to Library Functions CURLOPT_APPEND(3)

CURLOPT_APPEND - append to the remote file

#include <curl/curl.h>
CURLcode curl_easy_setopt(CURL *handle, CURLOPT_APPEND, long append);

A long parameter set to 1 tells the library to append to the remote file instead of overwrite it. This is only useful when uploading to an FTP site.

0 (disabled)

This functionality affects ftp only

int main(void)
{

CURL *curl = curl_easy_init();
if(curl) {
curl_easy_setopt(curl, CURLOPT_URL, "ftp://example.com/dir/to/newfile");
curl_easy_setopt(curl, CURLOPT_UPLOAD, 1L);
curl_easy_setopt(curl, CURLOPT_APPEND, 1L);
curl_easy_perform(curl);
} }

This option was known as CURLOPT_FTPAPPEND up to 7.16.4

Added in curl 7.17.0

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

CURLOPT_DIRLISTONLY(3), CURLOPT_RESUME_FROM(3), CURLOPT_UPLOAD(3)

2024-10-05 libcurl