On Thu, Nov 29, 2007 at 03:56:43PM +0100, Barthold, Robert wrote:
> how can i get the file size of a file that i want to download, BEFORE i
> download the file. I didn't find any options or paramters.

You could use a HEAD request (instead of GET). The returned Content-Length
header contains the number of bytes of the file. It is not mandatory for
servers to return this header; if the server does not send it, your only
option is to download the data and count the bytes yourself.

However, a HEAD request might not be the best way if you intend to download
the file immediately after finding out the length. Instead, do a normal GET
and register a function using CURLOPT_PROGRESSFUNCTION:
http://curl.haxx.se/libcurl/c/curl_easy_setopt.html#CURLOPTPROGRESSFUNCTION

Cheers,

  Richard

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