mojave man page for curlopt_append

CURLOPT_APPEND(3)					     curl_easy_setopt options						 CURLOPT_APPEND(3)

NAME
       CURLOPT_APPEND - enable appending 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
       FTP

EXAMPLE
       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);
       }

AVAILABILITY
       This option was known as CURLOPT_FTPAPPEND up to 7.16.4

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

SEE ALSO
       CURLOPT_DIRLISTONLY(3), CURLOPT_RESUME_FROM(3), CURLOPT_UPLOAD(3),

libcurl 7.54.0							  March 06, 2016						 CURLOPT_APPEND(3)