/* Copyright (C) 1991, 1996, 1997 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; see the file COPYING.LIB. If not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ #include <errno.h> #include <signal.h> #include <stddef.h> #include <unistd.h> /* Change the set of blocked signals to SET, wait until a signal arrives, and restore the set of blocked signals. */ int sigsuspend (set) const sigset_t *set; { sigset_t oset; int save; if (set == NULL) { __set_errno (EINVAL); return -1; } if (sigprocmask (SIG_SETMASK, set, &oset) < 0) return -1; (void) pause(); save = errno; if (sigprocmask (SIG_SETMASK, &oset, (sigset_t *) NULL) < 0) return -1; __set_errno (save); return -1; }