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extern.h revision 1.13
      1 /*	$NetBSD: extern.h,v 1.13 2006/08/26 22:03:47 christos Exp $	*/
      2 
      3 /*
      4  * Copyright (c) 1997 Christos Zoulas.  All rights reserved.
      5  *
      6  * Redistribution and use in source and binary forms, with or without
      7  * modification, are permitted provided that the following conditions
      8  * are met:
      9  * 1. Redistributions of source code must retain the above copyright
     10  *    notice, this list of conditions and the following disclaimer.
     11  * 2. Redistributions in binary form must reproduce the above copyright
     12  *    notice, this list of conditions and the following disclaimer in the
     13  *    documentation and/or other materials provided with the distribution.
     14  * 3. All advertising materials mentioning features or use of this software
     15  *    must display the following acknowledgement:
     16  *	This product includes software developed by Christos Zoulas.
     17  * 4. The name of the author may not be used to endorse or promote products
     18  *    derived from this software without specific prior written permission.
     19  *
     20  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
     21  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     22  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     23  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
     24  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
     25  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     26  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     27  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     28  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
     29  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     30  */
     31 
     32 /* prototypes */
     33 void mkfs(const char *, int, int, mode_t, uid_t, gid_t);
     34 
     35 /* * variables set up by front end. */
     36 extern int	mfs;		/* run as the memory based filesystem */
     37 extern int	Nflag;		/* run mkfs without writing file system */
     38 extern int	Oflag;		/* format as an 4.3BSD file system */
     39 extern int	verbosity;	/* amount of printf() output */
     40 extern int64_t	fssize;		/* file system size */
     41 extern int	sectorsize;	/* bytes/sector */
     42 extern int	rpm;		/* revolutions/minute of drive */
     43 extern int	fsize;		/* fragment size */
     44 extern int	bsize;		/* block size */
     45 extern int	maxbsize;
     46 extern int	cpg;		/* cylinders/cylinder group */
     47 extern int	cpgflg;		/* cylinders/cylinder group flag was given */
     48 extern int	minfree;	/* free space threshold */
     49 extern int	opt;		/* optimization preference (space or time) */
     50 extern int	density;	/* number of bytes per inode */
     51 extern int	num_inodes;	/* number of inodes (overrides density) */
     52 extern int	maxcontig;	/* max contiguous blocks to allocate */
     53 extern int	maxbpg;		/* maximum blocks per file in a cyl group */
     54 extern int	maxblkspercg;
     55 extern int	nrpos;		/* # of distinguished rotational positions */
     56 extern int	avgfilesize;	/* expected average file size */
     57 extern int	avgfpdir;	/* expected number of files per directory */
     58 extern u_long	memleft;	/* virtual memory available */
     59 extern caddr_t	membase;	/* start address of memory based filesystem */
     60 extern int	needswap;	/* Filesystem not in native byte order */
     61 extern int	isappleufs; /* Filesystem is Apple UFS */
     62 extern char	*appleufs_volname;	/* Apple UFS volume name */
     63