1 /* $NetBSD: lvm-wrappers.h,v 1.1.1.3 2009/12/02 00:25:41 haad Exp $ */ 2 3 /* 4 * Copyright (C) 2001-2004 Sistina Software, Inc. All rights reserved. 5 * Copyright (C) 2004-2006 Red Hat, Inc. All rights reserved. 6 * 7 * This file is part of LVM2. 8 * 9 * This copyrighted material is made available to anyone wishing to use, 10 * modify, copy, or redistribute it subject to the terms and conditions 11 * of the GNU Lesser General Public License v.2.1. 12 * 13 * You should have received a copy of the GNU Lesser General Public License 14 * along with this program; if not, write to the Free Software Foundation, 15 * Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 16 */ 17 18 #ifndef _LVM_WRAPPERS_H 19 #define _LVM_WRAPPERS_H 20 21 int lvm_getpagesize(void); 22 23 /* 24 * Read 'len' bytes of entropy from /dev/urandom and store in 'buf'. 25 */ 26 int read_urandom(void *buf, size_t len); 27 28 # ifndef HAVE_SIGINTERRUPT 29 # define siginterrupt(sig, flag) \ 30 do { \ 31 int ret; \ 32 struct sigaction act; \ 33 (void) sigaction(sig, NULL, &act); \ 34 if (flag) \ 35 act.sa_flags &= SA_RESTART; \ 36 else \ 37 act.sa_flags |= SA_RESTART; \ 38 ret = sigaction(sig, &act, NULL); \ 39 return ret; \ 40 while (0) 41 # endif 42 43 #endif 44