sudden problems with socket connections

[Steve Youngs]

* Scott Evans <gse at antisleep.com> writes:

  > Hi folks,
  > I'm one of the maintainers of TNT, an IM client for Emacs.
  > (http://tnt.sourceforge.net) 

Hi Scott,

I'm the maintainer of Eicq (http://www.eicq.org/), an ICQ client for
(S)XEmacs, we might have some things in common. :-)

  > I use TNT daily on two machines, but in the last few days I am unable 
  > to establish a connection from my laptop.  The connection attempt never 
  > returns an error, but nothing seems to happen.

  > If I quit XEmacs, I see the expected process list:

  >> Proc    Status   Buffer   Tty     Command
  >> ----    ------   ------   ---     -------
  >> toc     open     (none)   (none)  network stream connection 5190 at toc.oscar.aol.com

  > ...and the "active processes exist; kill them and exit anyway" question.


  > Under the hood, we connect to AIM as follows:
  >   (setq tocstr-process (open-network-stream "toc" nil host port))

Do you employ any kind of debugging in TNT?  If not, you could use
something like this... (lifted directly from eicq-v8.el)

(defcustom eicq-v8-debug t
  "*Non-nil mean eicq protocol debugging is enabled."
  :type 'boolean)

(defvar eicq-debug-buffer "*eicq-debug*")

(defun eicq-v8-debug (msg &rest args)
  "Print debug MSG."
  (when eicq-v8-debug
    (with-current-buffer
	(get-buffer-create eicq-debug-buffer)
      (save-excursion
	(goto-char (point-max))
	(insert (apply 'format msg args) "\n")))))

And then it is just a matter of calling `eicq-v8-debug' in any function
that handles incoming packets (your sentinels/filters) and in any
function that sends outgoing packets.

And if that doesn't reveal anything useful, try something like tcpdump[1]
to inspect the packets going in and out.

HTH


Footnotes: 
[1]  I have no idea if tcpdump builds or runs on win32.  I also have no
     idea if any alternate packet sniffer exists for win32.

-- 
|---<Steve Youngs>---------------<GnuPG KeyID: A94B3003>---|
|       SXEmacs - The only _______ you'll ever need.       |
|         Fill in the blank, yes, it's THAT good!          |
|------------------------------------<steve at sxemacs.org>---|
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