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Date: Wed, 30 May 2001 09:56:38 -0400
From: Christopher Faylor <cgf AT redhat DOT com>
To: Cygwin <cygwin AT cygwin DOT com>
Subject: Re: UNIX-socket problems under cygwin 1.3.2
Message-ID: <20010530095638.D17603@redhat.com>
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References: <1888116520 DOT 20010529164542 AT logos-m DOT ru> <000001c0e8ce$2f8eab40$6e032bb7 AT BRAMSCHE>
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In-Reply-To: <000001c0e8ce$2f8eab40$6e032bb7@BRAMSCHE>; from Ralf.Habacker@saght.tessag.com on Wed, May 30, 2001 at 08:03:02AM +0200

On Wed, May 30, 2001 at 08:03:02AM +0200, Ralf Habacker wrote:
>>
>> RH> I have figured out another problem on cygwin 1.3.2. On ported
>> kde 1.1.2 unix
>> RH> sockets doesn't work right. The function accept() returns an
>> error. Starting
>> RH> this application under cygwin 1.1.8-2 it works. Starting the
>> app with strace
>> RH> or gdb works.
>>
>> RH> Does anyone have some hints ?
>>
>> if you'd be more specific of what error accept() returns, or tell when
>> it returns an error -- when called, or on incoming connection, or even
>> (gasp) provide a testcase, someone surely may help.
>
>I have found this
>
>socket(PF_UNIX,SOCK_STREAM,0) = 5
>connect(5,unix_addr.sun_path=/tmp//kfm_1002_1068BRAMSCHE_0.0,size)=okay
>...
>later
>....
>newsock = accept (sock, (struct sockaddr *) &clientname, &size))
>Error accepting (UNIX) sock = 5 new_sock=-1 errno=113
>
>It is curious, that if starting this app (kpanel) like below, no errors
>occurres.
>
> 	strace kpanel >/dev/null
>
>It seems to me, that there are some correlations between strace printing
>code and functionality of some cygwin_accept() sub functions. Perhaps some
>statements are only executed while stracing.
>
>If you need some additional informations tell me and I will look.

Sure, some additional information in this case would be the lines of
code in question.  There is no need to speculate on the behavior of
strace when you have the ability to read the source code.

cgf

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