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      1 /*	$NetBSD: extern.h,v 1.20 2022/11/17 06:40:39 chs 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  *
     15  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
     16  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     17  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     18  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
     19  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
     20  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     21  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     22  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     23  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
     24  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     25  */
     26 
     27 /* prototypes */
     28 void mkfs(const char *, int, int, mode_t, uid_t, gid_t);
     29 
     30 /* * variables set up by front end. */
     31 extern int	mfs;		/* run as the memory based filesystem */
     32 extern int	Nflag;		/* run mkfs without writing file system */
     33 extern int	Oflag;		/* format as an 4.3BSD file system */
     34 extern int	eaflag;		/* use UFS2ea fs_magic */
     35 extern int	verbosity;	/* amount of printf() output */
     36 extern int64_t	fssize;		/* file system size */
     37 extern int	sectorsize;	/* bytes/sector */
     38 extern int	rpm;		/* revolutions/minute of drive */
     39 extern int	fsize;		/* fragment size */
     40 extern int	bsize;		/* block size */
     41 extern int	maxbsize;
     42 extern int	cpg;		/* cylinders/cylinder group */
     43 extern int	cpgflg;		/* cylinders/cylinder group flag was given */
     44 extern int	minfree;	/* free space threshold */
     45 extern int	opt;		/* optimization preference (space or time) */
     46 extern int	density;	/* number of bytes per inode */
     47 extern int	num_inodes;	/* number of inodes (overrides density) */
     48 extern int	maxcontig;	/* max contiguous blocks to allocate */
     49 extern int	maxbpg;		/* maximum blocks per file in a cyl group */
     50 extern int	maxblkspercg;
     51 extern int	nrpos;		/* # of distinguished rotational positions */
     52 extern int	avgfilesize;	/* expected average file size */
     53 extern int	avgfpdir;	/* expected number of files per directory */
     54 extern u_long	memleft;	/* virtual memory available */
     55 extern caddr_t	membase;	/* start address of memory based filesystem */
     56 extern int	quotas;		/* filesystem quota to enable */
     57 
     58 #ifndef NO_FFS_EI
     59 extern int	needswap;	/* Filesystem not in native byte order */
     60 #else
     61 /* Disable Endian-Independent FFS support for install media */
     62 #define		needswap		(0)
     63 #define		ffs_cg_swap(a, b, c)	__nothing
     64 #define		ffs_csum_swap(a, b, c)	__nothing
     65 #define		ffs_dinode1_swap(a, b)	__nothing
     66 #define		ffs_sb_swap(a, b)	__nothing
     67 #endif
     68 
     69 #ifndef NO_APPLE_UFS
     70 extern int	isappleufs; /* Filesystem is Apple UFS */
     71 extern char	*appleufs_volname;	/* Apple UFS volume name */
     72 #else
     73 /* Disable Apple UFS support for install media */
     74 #define		isappleufs		(0)
     75 #endif
     76 
     77 #ifdef NO_IOBUF_ALIGNED
     78 #define	aligned_alloc(align, size)	malloc((size))
     79 #endif
     80 
     81