view tests/sigpipe.c @ 2365:ce4aa0ef8af1

[xemacs-hg @ 2004-11-04 07:48:14 by ben] Major work on internals manual. Rearranged many chapters so as to lie in coherent divisions. Add tons of stuff to Future Work, Old Future Work, Discussions. Add lots of stuff to Mule section (Multilingual ...). Remove index.texi, incorporate into internals.texi. Section on early history and an introduction. Section on XEmacs split. Lots of new MS Windows docs Mostly recently: Windows-I18N docs. Lots if new I18N docs. Loads of other stuff. .
author ben
date Thu, 04 Nov 2004 07:48:14 +0000
parents 3f6adebda25c
children 679041362cd4
line wrap: on
line source

/* code is all from loser.c and loser.el by Mly

Copyright (C) 2002 Richard Mlynarik <mly@pobox.com>

This is part of XEmacs

Compile this file.  Run it in the background giving it a command line
argument PORT which is a positive integer 1024 < PORT < 32768 (avoid the
numbers assigned in /etc/services).

Then start up a fresh (you're going to crash) XEmacs.  Execute the following

(defun lose (port)
  (interactive "nUrk: ")
  (require 'comint)
  (while t
    (condition-case e
        (let* ((name "*lose*")
	       (b (get-buffer-create name)))
          (switch-to-buffer b)
          (comint-mode)
          (comint-exec b name (cons "127.0.0.1" port) nil '())
          (process-send-string (get-buffer-process b) "\377\373\001")
          (process-send-string (get-buffer-process b) "\377\373\001"))
      (error (message "URK: %s" e)) (sit-for 1))))

Then M-x lose RET PORT RET and you lose big (in XEmacs 21.1, anyway).
Note: the error messages are proper functioning.  What should eventually
happen after a number of SIGPIPEs is that you get a SIGSEGV and life is
bad and XEmacs is dead.
*/

#include <arpa/inet.h>

int
main (int argc, char **argv)
{
  struct sockaddr_in junk;
  int s;

  memset (&junk, 0, sizeof (junk));

  junk.sin_family = AF_INET;
  junk.sin_addr.s_addr = htonl (INADDR_ANY); /* un*x sucks */
  junk.sin_port = htons (atoi (argv[1])); /* un*x blows */

  s = socket (PF_INET, SOCK_STREAM, 0);

  bind (s, (struct sockaddr *)&junk, sizeof (junk));

  listen (s, 1);
  
  for (;;)
  {
    int loser = accept (s, NULL, 0);
    close (loser);
  }
}