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At 05:10 PM 1/25/02 +0100, Corinna Vinschen wrote: >On Fri, Jan 25, 2002 at 10:39:30AM -0500, Pierre A. Humblet wrote: <snip, long example> >> Any thoughts? > >Not immediately. Two questions: > <snip, already answered> >- Could you patch Cygwin fhandler_socket.cc, fhandler_socket::close() > and rip out the whole linger stuff so that only the naked closesocket() > call remains and see if that changes the behaviour? > Corinna, No difference (on Win98 and Me. I will try NT on Monday). I can now duplicate exactly what's happening in the application I am porting. A key element is that it disconnects itself from the controlling terminal by closing fd 0, 1 & 2 and forking. Weird things happen afterwards: 1) For every re-exec (triggered by -HUP), ps -W and the Windows task manager show an extra copy of the program. [without the disconnect from the controlling terminal, only one process appears] 2) If a tcp call was received and a child was forked, then after the next re-exec netstat -a shows an extra LISTEN on port 999. It never goes away. This happens even if the -HUP is given long after (I tried up to 5 minutes) the child terminates. Eventually incoming calls are not answered. [without the disconnect from the controlling terminal, an extra LISTEN appears only if the -HUP was given while the child is running, and it disappears when the child exits] I have no idea where to start debugging that. I am attaching the demo program. It is used as shown in the previous message, and also using ps -W. Ntsec good news: I think I have identified and solved the problem of having an incorrect UID, and also of setting the DACL in the token security descriptor. I will test on Monday and let you know. Pierre
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tcpdemo.c
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