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                                            2025-06-16                                  CURLOPT_APPEND(3)