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Date: Fri, 24 Feb 2006 10:34:54 +0100
From: Corinna Vinschen <corinna-cygwin AT cygwin DOT com>
To: cygwin AT cygwin DOT com
Subject: Re: bindresvport(): can it be exported from cygwin1.dll?
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On Feb 23 15:38, Andrew Schulman wrote:
> > > I see that bindresvport.c is part of the cygwin source code.
> > 
> > You have apparently better eyes then I have.  Where did you see that
> > bindresvport function in Cygwin?
> > 
> > If you're talking about the implementation in newlib/libc/sys/linux/...
> > then it's unusable for Cygwin.  There's a reason it's in the linux
> > subdirectory...
> 
> Ah... ok.
>  
> > >   Would it be
> > > possible to have it exported from cygwin1.dll?
> > 
> > No.  We need a implementation which uses the limited functionality
> > of WinSock.  It's not that hard, but it's definitely not going to be 
> > in 1.5.20.  http://cygwin.com/acronyms/#SHTDI
> 
> OK, I'll have a look at it.  Any ready pointers would be welcome.

bindresvport and bindresvport_sa are in functionality very similar to
rresvport, except that they don't create the socket by themselves.  So,
actually it's fairly easy to implement bindresvport{_sa} by ripping out
the bigger part from rresvport, move it into its own function called
bindresvport_sa, and implementing bindresvport and rresvport by calling
bindresvport_sa.

Actually, I'm planning to do this anyway, but I already added too many
new functions to 1.5.20, so this must wait, same as getaddrinfo or our
own implementation of rexec/rcmd.  However, this doesn't mean I wouldn't
be glad about help.  You know, http://cygwin.com/acronyms/#PTC  ;-)


Corinna

-- 
Corinna Vinschen                  Please, send mails regarding Cygwin to
Cygwin Project Co-Leader          cygwin AT cygwin DOT com
Red Hat

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