OpenEuphoria

Re: binary data with winsock.ew

• Posted by Alan Tu <alantu at STUDENTS.UIUC.EDU> Mar 24, 2000
• 412 views

Thanks for the info, Bryan. I always get a little mystified about the
handling "mangling" of those CRLF. If I desired an FTP server, I think I can
get one. My fantasy program is a custom server where only I could access it.
I have a computer which I leave on all the time, and when I'm at another
location, it'd be cool to access my files. But if I publicly expose my
standard FTP port, I could be opening up my system to all sorts of things.

My program would listen for connections on a high port only I would know.
There'd be a secret 128-bit file that I'd have to send to my server once I
connect. All file transfers will be encrypted with another previously set up
key. At least, this is my fantasy program.

Although, I will say I have many pieces of the puzzle already written.

Alan

----- Original Message -----
From: "Brian Jackson" <bjackson at 2FARGON.COM>
To: <EUPHORIA at LISTSERV.MUOHIO.EDU>
Sent: Friday, March 24, 2000 10:00 AM
Subject: Re: binary data with winsock.ew


> On Fri, 24 Mar 2000 10:14:27 -0600, Alan Tu <alantu at STUDENTS.UIUC.EDU>
> wrote:
>
> >I have a question about the current implementation of winsock.  I want to
> >create a custom server and client (written in EU, of course) that will
> >transfer files from the server to the client.  Is the ReadData and
Senddate
> >libraries in winsock.ew restricted to ASCII "low bits" bytes, or can it
> read
> >and send all 255 bytes.  Thanks.
> >
> >Alan
>
> Winsock functions treat all data as binary, so you can read/write all 256
> bits.  For example, if you wanted to send a small .exe program using your
> server, you would open it in rb mode, and send it to the client using the
> sendData() function.  The client would use readData(), and write it to a
> file in wb mode.  For purely text documents, like txt and html files,
you'd
> want to read and write in ASCII mode because CRLF's get mangled going from
> Unix to DOS/Win and vice versa.
>
> Also, if you're just wanting to transfer files, you should check out
> WinInet, since it makes extensive use of the FTP protocols, and then your
> server would be accesible by all FTP clients.
>
> Brian
>