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Message-ID: <002e01c11e09$994f8930$0cb4a8c0@brisbane.paradigmgeo.com>
From: "Mike Thomas" <miketh AT brisbane DOT paradigmgeo DOT com>
To: "Corinna Vinschen" <cygwin AT cygwin DOT com>
References: <00a201c11a39$a1b55c40$0cb4a8c0 AT brisbane DOT paradigmgeo DOT com> <20010803140704 DOT W23782 AT cygbert DOT vinschen DOT de>
Subject: Re: BUG - 1.3.n accept fails if NULL sockaddr * argument and other related stuff.
Date: Mon, 6 Aug 2001 09:51:46 +1000
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Thanks for the help Corinna - much appreciated.

----- Original Message -----
From: Corinna Vinschen <cygwin AT cygwin DOT com>
To: <cygwin AT cygwin DOT com>
Sent: Friday, August 03, 2001 10:07 PM
Subject: Re: BUG - 1.3.n accept fails if NULL sockaddr * argument and other
related stuff.


> On Wed, Aug 01, 2001 at 01:25:29PM +1000, Mike Thomas wrote:
> >     return accept (sockfd, (struct sockaddr *) NULL, NULL);
>
> Should work now in the next developers snapshot.
>
> > 1. socket.h does not include a type "socklen_t" which is apparently
defined
> > on some Unix platforms.
>
> Defined as `int' in cygwin/socket.h now.
>
> > 2. Although not relevant to the code above, I noticed while looking in
> > socket.h and friends that Cygwin provides sockaddr and sockaddr_un,
which
> > differ in terms of how much space is made for the name of the socket.
The
> > sockaddr member sa_data is only very short (14 bytes, compared to
> > UNIX_PATH_LEN for the sun_path member of sockaddr_un) which would not
> > suffice for a long file name.  Unfortunately accept is defined in terms
of
> > sockaddr rather than sockaddr_un which could potentially cause string
> > overwrites.
>
> Should be no problem. Winsock accept doesn't know about AF_UNIX sockets.
> They are faked using AF_INET sockets in Cygwin.
>
> Hope, that helps,
> Corinna
>
> --
> Corinna Vinschen                  Please, send mails regarding Cygwin to
> Cygwin Developer                                mailto:cygwin AT cygwin DOT com
> Red Hat, Inc.
>
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