/* Copyright (C) 1991, 92, 94, 95, 96, 97, 98 Free Software Foundation, Inc.
   This file is part of the GNU C Library.

   The GNU C Library is free software; you can redistribute it and/or
   modify it under the terms of the GNU Library General Public License as
   published by the Free Software Foundation; either version 2 of the
   License, or (at your option) any later version.

   The GNU C Library is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   Library General Public License for more details.

   You should have received a copy of the GNU Library General Public
   License along with the GNU C Library; if not, see
   <https://www.gnu.org/licenses/>.  */

/* Modified for MiNTLib by Guido Flohr <guido@freemint.de>.  */

#include <errno.h>
#include <signal.h>
#include <stddef.h>		/* For NULL.  */

/* Set the mask of blocked signals to MASK,
   wait for a signal to arrive, and then restore the mask.  */
int
__sigpause (long sig_or_mask, int is_sig)
{
  sigset_t set;

  if (is_sig != 0)
    {
      /* The modern X/Open implementation is requested.  */
      if (__sigprocmask (0, NULL, &set) < 0
	  /* Yes, we call `sigdelset' and not `__sigdelset'.  */
	  || sigdelset (&set, sig_or_mask) < 0)
	return -1;
    }
  else
    {
      if (__sigemptyset (&set) < 0)
	return -1;

#ifdef __MINT__
      set = (unsigned long int) sig_or_mask;
#else
      {
	int sig;
	/* generic version */
	for (sig = 1; sig < NSIG; ++sig)
	  if ((sig_or_mask & sigmask (sig)) && __sigaddset (&set, sig) < 0)
	    return -1;
      }
#endif
    }

  return __sigsuspend (&set);
}


/* We have to provide a default version of this function since the
   standards demand it.  The version which is a bit more reasonable is
   the BSD version.  So make this the default.  */
int __default_sigpause __P ((long mask));
int
__default_sigpause (long mask)
{
  return __sigpause (mask, 0);
}
#undef sigpause
weak_alias (__default_sigpause, sigpause)
