CURLOPT_APPEND(3)          Library Functions Manual          CURLOPT_APPEND(3)

NAME
       CURLOPT_APPEND - append to the remote file

SYNOPSIS
       #include <curl/curl.h>

       CURLcode curl_easy_setopt(CURL *handle, CURLOPT_APPEND, long append);

DESCRIPTION
       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.

DEFAULT
       0 (disabled)

PROTOCOLS
       This functionality affects ftp and sftp

EXAMPLE
       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);
         }
       }

HISTORY
       This option was known as CURLOPT_FTPAPPEND up to 7.16.4

AVAILABILITY
       Added in curl 7.17.0

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_DIRLISTONLY(3), CURLOPT_RESUME_FROM(3), CURLOPT_UPLOAD(3)

libcurl                           2025-04-10                 CURLOPT_APPEND(3)