Message-Id: <199903182141.QAA13199@delorie.com>
Comments: Authenticated sender is <mert0407 AT sable DOT ox DOT ac DOT uk>
From: "George Foot" <george DOT foot AT merton DOT ox DOT ac DOT uk>
To: Edward Hill <edward_hill AT www DOT anything DOT com>
Date: Thu, 18 Mar 1999 21:39:23 +0000
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Subject: Re: rsxntdj + winsock
CC: djgpp AT delorie DOT com
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Reply-To: djgpp AT delorie DOT com

On 18 Mar 99 at 16:03, Edward Hill wrote:

> I got rsxntdj working and now I'd like to try and write
> a program that uses winsock.
> 
> I was delighted to see a winsock.h in the include directory

... but I found that it's not quite right.  Some things in it
have been changed from the original version, which I think is
a bad thing since it's effectively an interface to the DLLs.
But I don't know too much about this.  I overwrote it with a
winsock.h from some Winsock documentation I found, and it
works better now.  IIRC the problems I had were with the FD_*
macros used with `select'.  There's an obvious clash here with
the libc library function but I think it's OK provided you
don't try to use the libc function for anything -- since the
import library appears on the command line before the
(implicit) `-lc' the function from the import library (so
effectively the one from the DLL) will be used instead of the
libc version.

> I tried a makelib c:\windows\winsock.dll -o winsock.a
> but it told me that it was 16 bit and wouldn't do it.
> 
> So I tried a makelib c:\windows\system\wsock32.dll -o wsock.a
> this worked and I got a .a file.

IIRC that's what I found too.

> I just can't seem to get any sample winsock files working.
> I am using -lwsock32 an -Zwin32.
> 
> I was wondering if anybody out there has a sample winsock
> peice of code they could post that works for them (small 
> would be nice) so I can make sure it's not something I'm doing 
> wrong.

OK, here are a couple of programs that work fine for me.  Run 
the receiver first; it opens a socket and waits for data to be 
sent.  Then run the sender, and tell it the address of the 
receiver and the port number the receiver printed.  It will 
send a message; the receiver will tell you what was sent.  The 
zip is about 1.5k.

    http://users.ox.ac.uk/~mert0407/RSXWSOCK.ZIP

Note the capitalisation of the filename, Windows's FTP program 
seems to have a habit of doing that.

-- 
George