Daniel Stenberg wrote:
> On Thu, 30 Sep 2004, Wei Weng wrote:
>
>> AFAIK, the "SIZE" command is not standardized. Check RFC 959 for a
>> list of standard FTP command.
>> (http://www.zvon.org/tmRFC/RFC959/Output/index.html)
>
>
> That's correct. But most FTP servers in use today support it.
>
>> However, a even more clumsy way is to use "LIST" command then use
>> ftpparse utility (http://cr.yp.to/ftpparse.html), try to extract the
>> file size information, and pray that the format the FTP server returns
>> is not too strange not to be recognized. :)
>
>
> Also, most FTP servers provide the size of the upcoming transfer in the
> 150-response to RETR, and libcurl attempts to figure out the size from
> that if the SIZE command didn't work.
>

Is there any RFC or document that describes these type non-standard
extensions to FTP?

Thanks

Wei
Received on 2004-09-30