Re: Cygwin Dirmngr and TBB for windows

[Corinna Vinschen <corinna-cygwin at cygwin dot com>]

On Aug 30 21:20, john doe wrote:
> On 8/30/2018 5:07 PM, Corinna Vinschen wrote:
> > On Aug 30 14:35, Marco Atzeri wrote:
> > > Am 30.08.2018 um 11:30 schrieb john doe:
> > > > On 7/11/2018 10:11 AM, john doe wrote:
> > > > > Hi,
> > > > > 
> > > > > I'm trying to get Cygwin dirmngr to work with  Tor Browser for Windows.
> > > > > 
> > > > > Following some discussion on the gnupg user list it looks like that
> > > > > the connect(2) function in Cygwin does not return the proper error
> > > > > code:
> > > > > 
> > > > > https://lists.gnupg.org/pipermail/gnupg-users/2018-July/060768.html
> > > > > 
> > > > > On the above link one of the dev suggest that connect(2) returns
> > > > > EPERMS instead of ECONREFUSED.
> > > > > 
> > > > > If ECONREFUSED is not returned when port 9050 is queried the
> > > > > fallback code in dirmngr will not be executed and port 9150 will
> > > > > never be used.
> > > > > 
> > > > > Using dirmngr on Debian with TBBfor linux works as expected.
> > > > > 
> > > > > Can anyone confirm that and subcequently make Cygwin return the
> > > > > proper error code?
> > > > > 
> > > > > Any help is appriciated.
> > > > > 
> > > > 
> > > > As any one has been able to confirm that the issue is present in Cygwin
> > > > code?
> > > > I didn't see anything regarding this issue in the beta version of Cygwin
> > > > or did I mist it?
> > > 
> > > 
> > > a Simple Test Case will help to verify the claim.
> > 
> > Full ACK.
> > 
> > > connect is not expected to return EPERM
> > > http://pubs.opengroup.org/onlinepubs/9699919799/functions/connect.html
> > 
> > Cygwin does not explicitely generate EPERM anywhere near
> > AF_INET/AF_INET6 code.  Nor does a Winsock error exist which
> > gets gonverted to EPERM.
> > 
> > The *only* way to generate EPERM is if an underlying Winsock function
> > returns an error code not handled by Cygwin.  I never encountered
> > that case, though.  Thus, a STC is highly appreciated.
> > 
> > 
> > Corinna
> > 
> 
> Thanks both for your answer and your willingness to look into this.
> 
> STC:
> 1)  Have Tor Browser for Windows up and running.
> 2)  Start dirmngr:
>   $ mkdir ${HOME}/try
>   $ dirmngr --homedir ${HOME}/try -vvv --debug-all --server --use-tor
>   -> KS_GET -- 0x6C6ACD6417B3ACB1

That's not a STC.  STC means a simple, self-contained piece of (ideally)
C code to reproduce the issue.  I simply don't have the time to hunt
down something in lots of foreign code.


Corinna

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

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