signal/signal.c

   1 /* Copyright (C) 1991, 1995, 1996 Free Software Foundation, Inc.
   2    This file is part of the GNU C Library.
   3
   4    The GNU C Library is free software; you can redistribute it and/or
   5    modify it under the terms of the GNU Lesser General Public
   6    License as published by the Free Software Foundation; either
   7    version 2.1 of the License, or (at your option) any later version.
   8
   9    The GNU C Library is distributed in the hope that it will be useful,
  10    but WITHOUT ANY WARRANTY; without even the implied warranty of
  11    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12    Lesser General Public License for more details.
  13
  14    You should have received a copy of the GNU Lesser General Public
  15    License along with the GNU C Library; if not, write to the Free
  16    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
  17    02111-1307 USA.  */
  18
  19 #include <errno.h>
  20 #include <signal.h>
  21
  22
  23 /* Set the handler for the signal SIG to HANDLER,
  24    returning the old handler, or SIG_ERR on error.  */
  25 __sighandler_t
  26 signal (sig, handler)
  27      int sig;
  28      __sighandler_t handler;
  29 {
  30   __set_errno (ENOSYS);
  31   return SIG_ERR;
  32 }
  33
  34 weak_alias (signal, ssignal)
  35
  36 stub_warning (signal)
  37 stub_warning (ssignal)
  38 #include <stub-tag.h>