view tests/sigpipe.c @ 1410:44de306310b8

[xemacs-hg @ 2003-04-14 03:40:26 by youngs] 2003-04-14 Steve Youngs <youngs@xemacs.org> * package-admin.el (package-admin-find-top-directory): Use 'directory-sep-char'. (package-admin-get-install-dir): Ditto. This is so PUI won't break on platforms that don't use '/' as the directory separator. * package-get.el (package-get-pgp-available-p): New. (package-get-require-signed-base-updates): Use it. (package-get-update-base-from-buffer): Move the code that finds the gpg stuff into `package-get-pgp-available-p'. Now if you have Mailcrypt and a PGP binary installed and set up on your system, PUI will automatically default to doing PGP verification, otherwise it'll default to off. (package-get-require-base): Use the DATUM arg to `error'. (package-get-locate-index-file): Ditto. (package-get-update-base): Ditto. (package-get-update-base-entries): Ditto. (package-get-all): Ditto. (package-get-dependencies): Ditto. (package-get-info): Ditto. (package-get): Ditto. * package-info.el (batch-update-package-info): Use the DATUM arg to `error'. * package-net.el (package-net-batch-generate-bin-ini): Use the DATUM arg to `error'. * package-ui.el (pui-toggle-package-key): Use the DATUM arg to `error'. (pui-toggle-package-delete-key): Ditto. (pui-install-selected-packages): Ditto. (pui-add-required-packages): Ditto. (pui-display-info): Ditto. (list-packages-mode): Ditto. * packages.el (package-require): Use the DATUM arg to `error'.
author youngs
date Mon, 14 Apr 2003 03:40:27 +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);
  }
}