socket closing question

[warlord at MIT.EDU (Derek Atkins)]

This is a TCP socket?

There are a number of reasons why a TCP socket closed, including (but
not limited to):

- close() called on the local socket
- close() called on the remote socket
- RST packet received
- bad packet received

Have you tried running ethereal and watching the network?
Have you tried running strace and seeing if your application is calling
close()?

-derek

FRamsay at castelhq.com writes:

>                                                                                                                
>                                                                                                                
>                                                                                                                
> 
> 
> I should probably clarify, the local application did not close the socket,
> but neither did the remote application.
> And yet the socket did close.  So I'm trying to figure out where the socket
> originally closed and from there
> why the socket closed.
>                               -fjr
> 
> Frank Ramsay
> Systems Programmer
> Castel, Inc
> 100 Cummings Center
> Suite 157h
> Beverly, MA 01915
> (978) 236 1000 (voice)
> (978) 236 1197 (fax)
> Email: framsay at castelhq.com
> 
> 
> |---------+---------------------------->
> |         |           Nathan Meyers    |
> |         |           <nmeyers at javalinu|
> |         |           x.net>           |
> |         |           Sent by:         |
> |         |           discuss-admin at blu|
> |         |           .org             |
> |         |                            |
> |         |                            |
> |         |           05/02/2003 09:53 |
> |         |           AM               |
> |---------+---------------------------->
>   >------------------------------------------------------------------------------------------------------------------------------|
>   |                                                                                                                              |
>   |       To:       FRamsay at castelhq.com                                                                                         |
>   |       cc:       discuss at blu.org                                                                                              |
>   |       Subject:  Re: socket closing question                                                                                  |
>   >------------------------------------------------------------------------------------------------------------------------------|
> 
> 
> 
> 
> On Fri, May 02, 2003 at 09:45:26AM -0400, FRamsay at castelhq.com wrote:
> >
> > When a socket closes, is there a way to determine if it closed locally or
> > remotely?
> 
> What do you mean by "closed locally"? That your own application closed it?
> 
> Nathan Meyers
> nmeyers at javalinux.net
> 
> >
> >
> >                               -fjr
> >
> >
> > Frank Ramsay
> > Systems Programmer
> > Castel, Inc
> > 100 Cummings Center
> > Suite 157h
> > Beverly, MA 01915
> > (978) 236 1000 (voice)
> > (978) 236 1197 (fax)
> > Email: framsay at castelhq.com
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-- 
       Derek Atkins, SB '93 MIT EE, SM '95 MIT Media Laboratory
       Member, MIT Student Information Processing Board  (SIPB)
       URL: http://web.mit.edu/warlord/    PP-ASEL-IA     N1NWH
       warlord at MIT.EDU                        PGP key available