easy:SetOpt_Header(onoff)
onoff
get to 1 to ask libcurl to include the headers
in the write callback (#CURLOPT_WRITEFUNCTION
). This option is
relevant for protocols that actually have headers or other meta-data (like
HTTP and FTP).
When asking to get the headers passed to the same callback as the body, it is not possible to accurately separate them again without detailed knowledge about the protocol in use.
Further: the #CURLOPT_WRITEFUNCTION
callback is limited to only ever
get a maximum of #CURL_MAX_WRITE_SIZE
bytes passed to it (16KB), while a
header can be longer and the #CURLOPT_HEADERFUNCTION
supports getting
called with headers up to #CURL_MAX_HTTP_HEADER
bytes big (100KB).
It is often better to use #CURLOPT_HEADERFUNCTION
to get the header
data separately.
While named confusingly similar, #CURLOPT_HTTPHEADER
is used to get
custom HTTP headers!