RPC clnt_create() adress already in use

[Mark Geisert]

PAULUS, Raimund, TI-ABN wrote:
> Hi Mark,
> as Corinna wrote in the thread " Cygwin socket option SO_REUSEADDR operates unlike Linux", the cause for the problem in libtirpc is Microsofts implementation of socket handling. If i implement a simple socket client, that is not so much of an issue, because I call the functions separately and can handle the error. Moreover in this case bind() is not necessary.
> But in the case of libtirpc the implementation of clnttcp_create() determines the sequence of bind() and connect() for the local port and you cannot correct the error of bind() after the call of connect(). Therefore I think best is to set the port number to zero (port = 0) before the call to bind().
>
> Raimund
>
>
> -----Ursprüngliche Nachricht-----
> Von: cygwin-owner@cygwin.com [mailto:cygwin-owner@cygwin.com] Im Auftrag von PAULUS, Raimund, TI-ABN
> Gesendet: Dienstag, 9. Januar 2018 09:14
> An: cygwin@cygwin.com
> Betreff: WG: AW: RPC clnt_create() adress already in use
[...]

Hi Raimund,
Where, exactly, would you set the port number to zero?  I can imagine how this 
would solve the problem you're seeing but I'm concerned about other use cases.

It also seems a little odd to me we'd be making a Cygwin-specific patch rather 
than "fixing" Cygwin itself so the patch would not be necessary.  But I don't 
feel strongly either way here.  libtirpc already has Cygwin-specific patches.

..mark


--
Problem reports:       http://cygwin.com/problems.html
FAQ:                   http://cygwin.com/faq/
Documentation:         http://cygwin.com/docs.html
Unsubscribe info:      http://cygwin.com/ml/#unsubscribe-simple