/* Copyright (C) 1991,92,94-98,2000,2002,2003,2004 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 Lesser General Public License as published by the Free Software Foundation; either version 2.1 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 Lesser General Public License for more details. You should have received a copy of the GNU Lesser General Public License along with the GNU C Library; if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. */ #define _BSD_SOURCE #include <errno.h> #include <signal.h> #include <stddef.h> /* For NULL. */ libc_hidden_proto(sigprocmask) libc_hidden_proto(sigdelset) libc_hidden_proto(sigsuspend) #include "sigset-cvt-mask.h" /* Set the mask of blocked signals to MASK, wait for a signal to arrive, and then restore the mask. */ libc_hidden_proto(__sigpause) int __sigpause (int 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 (sigset_set_old_mask (&set, sig_or_mask) < 0) return -1; return sigsuspend (&set); } libc_hidden_def(__sigpause) #undef sigpause /* 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. */ libc_hidden_proto(sigpause) int sigpause (int mask) { return __sigpause (mask, 0); } libc_hidden_def(sigpause)