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Update copyright/license notices to match SGI legal prefered boilerplate.
Merge of master-melb:xfs-cmds:24374a by kenmcd.

/*
 * Copyright (c) 2000-2001,2005 Silicon Graphics, Inc.
 * All Rights Reserved.
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License as
 * published by the Free Software Foundation.
 *
 * This program is distributed in the hope that it would be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write the Free Software Foundation,
 * Inc.,  51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
 */

#define	bitize(s)	((s) * NBBY)
#define	bitsz(t)	bitize(sizeof(t))
#define	bitszof(x,y)	bitize(szof(x,y))
#define	byteize(s)	((s) / NBBY)
#define	bitoffs(s)	((s) % NBBY)

#define	BVUNSIGNED	0
#define	BVSIGNED	1

extern __int64_t	getbitval(void *obj, int bitoff, int nbits, int flags);
extern void             setbitval(void *obuf, int bitoff, int nbits, void *ibuf);