/* Copyright (C) 1992, 1994, 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 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 __need_NULL #include <stddef.h> #include <setjmp.h> #include <signal.h> /* This function is called by the `sigsetjmp' macro before doing a `__setjmp' on ENV[0].__jmpbuf. Always return zero. */ int __sigjmp_save (sigjmp_buf env, int savemask) { env[0].__mask_was_saved = (savemask && sigprocmask (SIG_BLOCK, NULL, &env[0].__saved_mask) == 0); return 0; }