379 lines
15 KiB
Groff
379 lines
15 KiB
Groff
.\" Copyright (c) 1983, 1991, 1993
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.\" The Regents of the University of California. All rights reserved.
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.\"
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.\" Redistribution and use in source and binary forms, with or without
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.\" modification, are permitted provided that the following conditions
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.\" are met:
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.\" 1. Redistributions of source code must retain the above copyright
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.\" notice, this list of conditions and the following disclaimer.
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.\" 2. Redistributions in binary form must reproduce the above copyright
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.\" notice, this list of conditions and the following disclaimer in the
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.\" documentation and/or other materials provided with the distribution.
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.\" 3. All advertising materials mentioning features or use of this software
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.\" must display the following acknowledgement:
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.\" This product includes software developed by the University of
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.\" California, Berkeley and its contributors.
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.\" 4. Neither the name of the University nor the names of its contributors
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.\" may be used to endorse or promote products derived from this software
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.\" without specific prior written permission.
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.\"
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.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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.\" SUCH DAMAGE.
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.\"
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.\" @(#)fs.5 8.2 (Berkeley) 4/19/94
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.\" %FreeBSD: src/share/man/man5/fs.5,v 1.21 2004/07/03 18:29:22 ru Exp %
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.\"
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.\" $FreeBSD$
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.\"
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.Dd April 19, 1994
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.Dt FS 5
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.Os
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.Sh ̾¾Î
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.Nm fs ,
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.Nm inode
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.Nd ¥Õ¥¡¥¤¥ë¥·¥¹¥Æ¥à¥Ü¥ê¥å¡¼¥à¤Î¥Õ¥©¡¼¥Þ¥Ã¥È
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.Sh ½ñ¼°
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.In sys/param.h
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.In ufs/ffs/fs.h
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.Pp
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.In sys/types.h
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.In sys/lock.h
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.In ufs/ufs/quota.h
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.In ufs/ufs/inode.h
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.Sh ²òÀâ
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¥Õ¥¡¥¤¥ë
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.In fs.h
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¤È
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.In inode.h
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¤Ï¡¢¥é¥ó¥À¥à¥¢¥¯¥»¥¹¥Ç¥Ð¥¤¥¹ (¥Ç¥£¥¹¥¯) ¾å¤Î¥Õ¥¡¥¤¥ë¥·¥¹¥Æ¥à¥ª¥Ö¥¸¥§¥¯¥È
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¤Î´ðËÜ¥Õ¥©¡¼¥Þ¥Ã¥È¤òºîÀ®¡¢´ÉÍý¤¹¤ëºÝ¤Ë»È¤ï¤ì¤ë¤¤¤¯¤Ä¤«¤Î¹½Â¤ÂΡ¢
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ÄêµÁºÑ¤ßÊÑ¿ô¡¢¥Þ¥¯¥í¤òÀë¸À¤·¤Þ¤¹¡£
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.Pp
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¥Õ¥¡¥¤¥ë¥·¥¹¥Æ¥à¤Ï¥Ö¥í¥Ã¥¯¥µ¥¤¥º¤È¥Ö¥í¥Ã¥¯¿ô¤«¤é¹½À®¤µ¤ì¤Æ¤ª¤ê¡¢
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¤³¤ì¤é¤Ï¥Õ¥¡¥¤¥ë¥·¥¹¥Æ¥à¤Î¥Ñ¥é¥á¡¼¥¿¤Ë¤Ê¤ê¤Þ¤¹¡£
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.Dv BBLOCK
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¤«¤é»Ï¤Þ¤ê
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Â礤µ
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.Dv BBSIZE
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¤À¤±Â³¤¯¥»¥¯¥¿¤Ï¡¢
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¥Ç¥£¥¹¥¯¥é¥Ù¥ë¤È¤¤¤¯¤Ä¤«¤Î°ì¼¡¡¢Æ󼡥ϡ¼¥É¥¦¥§¥¢¥Ö¡¼¥È¥¹¥È¥é¥Ã¥×¥×¥í¥°¥é¥à
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¤Î¤¿¤á¤Ë»È¤ï¤ì¤Þ¤¹¡£
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.Pp
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¼ÂºÝ¤Î¥Õ¥¡¥¤¥ë¥·¥¹¥Æ¥à¤Ï¡¢
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.Dv SBLOCK
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¥»¥¯¥¿¤«¤é»Ï¤Þ¤ê¡¢¤½¤³¤Ë¤Ï
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Â礤µ¤¬
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.Dv SBLOCKSIZE
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¤Ç¤¢¤ë
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.Em ¥¹¡¼¥Ñ¥Ö¥í¥Ã¥¯
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¤¬¤¢¤ê¤Þ¤¹¡£
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¥Õ¥¡¥¤¥ë
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.In ufs/ffs/fs.h
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¤Ë¤¢¤ë°Ê²¼¤Î¹½Â¤ÂΤϡ¢¥¹¡¼¥Ñ¥Ö¥í¥Ã¥¯¤òµ½Ò¤·¤Æ¤¤¤Þ¤¹¡£
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.Bd -literal
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/*
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* FFS ¥Õ¥¡¥¤¥ë¥·¥¹¥Æ¥à¤Î¥¹¡¼¥Ñ¥Ö¥í¥Ã¥¯
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*/
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struct fs {
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int32_t fs_firstfield; /* ÆâÉô¥¹¡¼¥Ñ¥Ö¥í¥Ã¥¯ÍѤ˻Ȥï¤ì¤ë¡¢Îò»ËŪ */
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int32_t fs_unused_1; /* FS ¥ê¥ó¥¯¥ê¥¹¥È */
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int32_t fs_sblkno; /* fs Æ⥹¡¼¥Ñ¥Ö¥í¥Ã¥¯¥ª¥Õ¥»¥Ã¥È */
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int32_t fs_cblkno; /* fs Æ⥷¥ê¥ó¥À¥Ö¥í¥Ã¥¯¥ª¥Õ¥»¥Ã¥È */
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int32_t fs_iblkno; /* fs Æâ inode ¥Ö¥í¥Ã¥¯¥ª¥Õ¥»¥Ã¥È */
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int32_t fs_dblkno; /* cg ¸å¤ÎºÇ½é¤Î¥Ç¡¼¥¿¤Î¥ª¥Õ¥»¥Ã¥È */
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int32_t fs_old_cgoffset; /* ¥·¥ê¥ó¥ÀÆâ¤Î¥·¥ê¥ó¥À¥°¥ë¡¼¥×¥ª¥Õ¥»¥Ã¥È */
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int32_t fs_old_cgmask; /* mod fs_ntrak ¤Î·×»»¤Ë»È¤ï¤ì¤ë */
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int32_t fs_old_time; /* ºÇ¸å¤Ë½ñ¤¹þ¤Þ¤ì¤¿»þ¹ï */
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int32_t fs_old_size; /* fs Æâ¤Î¥Ö¥í¥Ã¥¯¿ô */
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int32_t fs_old_dsize; /* fs Æâ¤Î¥Ç¡¼¥¿¥Ö¥í¥Ã¥¯¿ô */
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int32_t fs_ncg; /* ¥·¥ê¥ó¥À¥°¥ë¡¼¥×¤Î¿ô */
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int32_t fs_bsize; /* fs Æâ¤Î´ðËÜ¥Ö¥í¥Ã¥¯¥µ¥¤¥º */
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int32_t fs_fsize; /* fs Æâ¤Î¥Õ¥é¥°¥á¥ó¥È¥Ö¥í¥Ã¥¯¥µ¥¤¥º */
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int32_t fs_frag; /* fs ¤Î 1 ¥Ö¥í¥Ã¥¯Ãæ¤Î¥Õ¥é¥°¥á¥ó¥È¿ô */
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/* °Ê²¼¤Ï¥³¥ó¥Õ¥£¥®¥å¥ì¡¼¥·¥ç¥ó¥Ñ¥é¥á¡¼¥¿ */
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int32_t fs_minfree; /* ¥Õ¥ê¡¼¥Ö¥í¥Ã¥¯¤ÎºÇ¾®¥Ñ¡¼¥»¥ó¥Æ¡¼¥¸ */
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int32_t fs_old_rotdelay; /* ºÇŬ¤Ê¼¡¥Ö¥í¥Ã¥¯¤Î¤¿¤á¤Î ms ¿ô */
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int32_t fs_old_rps; /* 1 É䢤¿¤ê¤Î¥Ç¥£¥¹¥¯²óž */
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/* ¤³¤ì¤é¤Î¥Õ¥£¡¼¥ë¥É¤Ï¾¤Î¥Õ¥£¡¼¥ë¥É¤«¤é·×»»¤Ç¤¤ë */
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int32_t fs_bmask; /* ``blkoff'' ¥Ö¥í¥Ã¥¯¥ª¥Õ¥»¥Ã¥È¤Î·×»» */
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int32_t fs_fmask; /* ``fragoff'' ¥Õ¥é¥°¥á¥ó¥È¥ª¥Õ¥»¥Ã¥È¤Î·×»» */
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int32_t fs_bshift; /* ``lblkno'' ÏÀÍý¥Ö¥í¥Ã¥¯ÈÖ¹æ¤Î·×»» */
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int32_t fs_fshift; /* ``numfrags'' ¥Õ¥é¥°¥á¥ó¥È¿ô¤Î·×»» */
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/* °Ê²¼¤Ï¥³¥ó¥Õ¥£¥®¥å¥ì¡¼¥·¥ç¥ó¥Ñ¥é¥á¡¼¥¿ */
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int32_t fs_maxcontig; /* Ϣ³¤·¤¿¥Ö¥í¥Ã¥¯¤ÎºÇÂç¿ô */
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int32_t fs_maxbpg; /* ¥·¥ê¥ó¥À¥°¥ë¡¼¥×¤¢¤¿¤ê¤ÎºÇÂç¥Ö¥í¥Ã¥¯¿ô */
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/* ¤³¤ì¤é¤Î¥Õ¥£¡¼¥ë¥É¤Ï¾¤Î¥Õ¥£¡¼¥ë¥É¤«¤é·×»»¤Ç¤¤ë */
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int32_t fs_fragshift; /* ¥Õ¥é¥°¥á¥ó¥È¥·¥Õ¥È¤¹¤ë¥Ö¥í¥Ã¥¯ */
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int32_t fs_fsbtodb; /* fsbtodb ¤È dbtofsb ¥·¥Õ¥ÈÄê¿ô */
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int32_t fs_sbsize; /* ¥¹¡¼¥Ñ¥Ö¥í¥Ã¥¯¤Î¼ÂºÝ¤ÎÂ礤µ */
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int32_t fs_spare1[2]; /* ¸Å¤¤ fs_csmask */
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/* ¸Å¤¤ fs_csshift */
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int32_t fs_nindir; /* NINDIR ¤ÎÃÍ */
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int32_t fs_inopb; /* INOPB ¤ÎÃÍ */
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int32_t fs_old_nspf; /* NSPF ¤ÎÃÍ*/
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/* Ê̤Υ³¥ó¥Õ¥£¥®¥å¥ì¡¼¥·¥ç¥ó¥Ñ¥é¥á¡¼¥¿ */
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int32_t fs_optim; /* ºÇŬ²½¤ÎÁªÂò¡¢°Ê²¼¤ò»²¾È */
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int32_t fs_old_npsect; /* ͽÈ÷¤ò´Þ¤à¡¢¥È¥é¥Ã¥¯¤¢¤¿¤ê¥»¥¯¥¿¿ô */
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int32_t fs_old_interleave; /* ¥Ï¡¼¥É¥¦¥§¥¢¥»¥¯¥¿¥¤¥ó¥¿¥ê¡¼¥Ö */
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int32_t fs_old_trackskew; /* ¥È¥é¥Ã¥¯¤¢¤¿¤ê¤Î¥»¥¯¥¿ 0 ¥¹¥¥å¡¼ */
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int32_t fs_id[2]; /* ¥æ¥Ë¡¼¥¯¤Ê¥Õ¥¡¥¤¥ë¥·¥¹¥Æ¥à ID */
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/* ¥·¥ê¥ó¥À¥°¥ë¡¼¥×¤Î¿ô¤È¥µ¥¤¥º¤Ë¤è¤ê·è¤á¤é¤ì¤ë¥µ¥¤¥º */
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int32_t fs_old_csaddr; /* ¥·¥ê¥ó¥À¥°¥ë¡¼¥×Áí³çÎΰè¤Î¥Ö¥í¥Ã¥¯¥¢¥É¥ì¥¹ */
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int32_t fs_cssize; /* ¥·¥ê¥ó¥À¥°¥ë¡¼¥×Áí³çÎΰè¤Î¥µ¥¤¥º */
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int32_t fs_cgsize; /* ¥·¥ê¥ó¥À¥°¥ë¡¼¥×¥µ¥¤¥º */
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int32_t fs_spare2; /* ¸Å¤¤ fs_ntrak */
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int32_t fs_old_nsect; /* ¥È¥é¥Ã¥¯¤¢¤¿¤ê¤Î¥»¥¯¥¿¿ô */
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int32_t fs_old_spc; /* ¥·¥ê¥ó¥À¤¢¤¿¤ê¤Î¥»¥¯¥¿¿ô */
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int32_t fs_old_ncyl; /* ¥Õ¥¡¥¤¥ë¥·¥¹¥Æ¥à¤Î¥·¥ê¥ó¥À¿ô */
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int32_t fs_old_cpg; /* ¥°¥ë¡¼¥×¤¢¤¿¤ê¤Î¥·¥ê¥ó¥À¿ô */
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int32_t fs_ipg; /* ¥°¥ë¡¼¥×¤¢¤¿¤ê¤Î inode ¿ô */
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int32_t fs_fpg; /* ¥°¥ë¡¼¥×¤¢¤¿¤ê¤Î¥Ö¥í¥Ã¥¯¿ô * fs_frag */
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/* ¤³¤Î¥Ç¡¼¥¿¤Ï¥¯¥é¥Ã¥·¥å¸å¤ËºÆ·×»»¤µ¤ì¤Ê¤±¤ì¤Ð¤Ê¤é¤Ê¤¤ */
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struct csum fs_old_cstotal; /* ¥·¥ê¥ó¥ÀÁí³ç¾ðÊó */
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/* °Ê²¼¤Î¥Õ¥£¡¼¥ë¥É¤Ï¥Þ¥¦¥ó¥È»þ¤Ë¥¯¥ê¥¢¤µ¤ì¤ë */
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int8_t fs_fmod; /* ¥¹¡¼¥Ñ¥Ö¥í¥Ã¥¯Êѹ¹¥Õ¥é¥° */
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int8_t fs_clean; /* ¥Õ¥¡¥¤¥ë¥·¥¹¥Æ¥à¤¬¥¯¥ê¡¼¥ó¤Ç¤¢¤ë¥Õ¥é¥° */
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int8_t fs_ronly; /* Æɤ߹þ¤ßÀìÍѤǥޥ¦¥ó¥È¤µ¤ì¤¿¥Õ¥é¥° */
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int8_t fs_old_flags; /* ¸Å¤¤ FS_ ¥Õ¥é¥° */
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u_char fs_fsmnt[MAXMNTLEN]; /* ¥Þ¥¦¥ó¥È¾ì½ê¤Î̾Á° */
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u_char fs_volname[MAXVOLLEN]; /* ¥Ü¥ê¥å¡¼¥à̾ */
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u_int64_t fs_swuid; /* ¥·¥¹¥Æ¥à¥ï¥¤¥É¤Î UID */
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int32_t fs_pad; /* fs_swuid ¤Î¥¢¥é¥¤¥ó¥á¥ó¥ÈÍÑ */
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/* ¤³¤ì¤é¤Î¥Õ¥£¡¼¥ë¥É¤Ï¸½ºß¤Î¥Ö¥í¥Ã¥¯¤ÎÇÛÃÖ¾ðÊó¤òÊÝ»ý¤¹¤ë */
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int32_t fs_cgrotor; /* ºÇ¸å¤Ë¸¡º÷¤µ¤ì¤¿ cg */
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void *fs_ocsp[NOCSPTRS]; /* ¥Ñ¥Ã¥É¡£fs_cs ¥Ð¥Ã¥Õ¥¡¤Î¥ê¥¹¥È¤À¤Ã¤¿ */
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u_int8_t *fs_contigdirs; /* Ϣ³³ä¤êÅö¤Æ¤µ¤ì¤¿ dir ¿ô */
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struct csum *fs_csp; /* fs_cs ¾ðÊó¥Ð¥Ã¥Õ¥¡¤Î¥ê¥¹¥È */
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int32_t *fs_maxcluster; /* ³Æ¥·¥ê¥ó¥À¥°¥ë¡¼¥×¤ÎºÇÂ祯¥é¥¹¥¿ */
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u_int *fs_active; /* fs ¥È¥é¥Ã¥¯ÍѤˡ¢¥¹¥Ê¥Ã¥×¥·¥ç¥Ã¥È¤¬»ÈÍÑ */
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int32_t fs_old_cpc; /* postbl Æâ¤Î¥µ¥¤¥¯¥ë¤¢¤¿¤ê¤Î¥·¥ê¥ó¥À */
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int32_t fs_maxbsize; /* ºÇÂç¤Î¥Ö¥í¥Ã¥¯²½·¸¿ô */
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int64_t fs_sparecon64[17]; /* ¸Å¤¤¥í¡¼¥Æ¡¼¥·¥ç¥ó¥Ö¥í¥Ã¥¯¥ê¥¹¥È¥Ø¥Ã¥É */
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int64_t fs_sblockloc; /* ɸ½à¤Î¥¹¡¼¥Ñ¥Ö¥í¥Ã¥¯¤Î¥Ð¥¤¥È¥ª¥Õ¥»¥Ã¥È */
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struct csum_total fs_cstotal; /* ¥·¥ê¥ó¥ÀÁí³ç¾ðÊó */
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ufs_time_t fs_time; /* ºÇ¸å¤Ë½ñ¤¹þ¤Þ¤ì¤¿»þ¹ï */
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int64_t fs_size; /* fs Ãæ¤Î¥Ö¥í¥Ã¥¯¿ô */
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int64_t fs_dsize; /* fs Ãæ¤Î¥Ç¡¼¥¿¥Ö¥í¥Ã¥¯¿ô */
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ufs2_daddr_t fs_csaddr; /* ¥·¥ê¥ó¥À¥°¥ë¡¼¥×Áí³ç¾ðÊóÎΰè¤Î¥Ö¥í¥Ã¥¯¥¢¥É¥ì¥¹ */
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int64_t fs_pendingblocks; /* ¸½ºß³«ÊüÅÓÃæ¤Î¥Ö¥í¥Ã¥¯¿ô */
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int32_t fs_pendinginodes; /* ¸½ºß³«ÊüÅÓÃæ¤Î inode ¿ô */
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int32_t fs_snapinum[FSMAXSNAP]; /* ¥¹¥Ê¥Ã¥×¥·¥ç¥Ã¥È inode ¿ô¤Î¥ê¥¹¥È */
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int32_t fs_avgfilesize; /* ¥Õ¥¡¥¤¥ë¥µ¥¤¥º¤ÎÊ¿¶Ñ¤Î´üÂÔÃÍ */
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int32_t fs_avgfpdir; /* ¥Ç¥£¥ì¥¯¥È¥ê¤¢¤¿¤ê¤Î¥Õ¥¡¥¤¥ë¿ô¤Î´üÂÔÃÍ */
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int32_t fs_save_cgsize; /* ¼Â cg ¥µ¥¤¥º¤òÊݸ¤·¡¢fs_bsize ¤ò»ÈÍÑ */
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int32_t fs_sparecon32[26]; /* ¾Íè¤ÎÄê¿ô¤Î¤¿¤á¤ÎͽÌó */
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int32_t fs_flags; /* ¸å½Ò¤Î FS_ ¥Õ¥é¥°»²¾È */
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int32_t fs_contigsumsize; /* ¥¯¥é¥¹¥¿Áí³çÇÛÎó¤ÎÂ礤µ */
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int32_t fs_maxsymlinklen; /* ÆâÉô¥·¥ó¥Ü¥ê¥Ã¥¯¥ê¥ó¥¯¤ÎºÇÂçĹ */
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int32_t fs_old_inodefmt; /* ¥Ç¥£¥¹¥¯¾å¤Î inode ¤Î¥Õ¥©¡¼¥Þ¥Ã¥È */
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u_int64_t fs_maxfilesize; /* ºÇÂçɽ¼¨²Äǽ¥Õ¥¡¥¤¥ë¥µ¥¤¥º */
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int64_t fs_qbmask; /* ~fs_bmask - 64 ¥Ó¥Ã¥È¥µ¥¤¥º¤Ç»È¤¦ */
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int64_t fs_qfmask; /* ~fs_fmask - 64 ¥Ó¥Ã¥È¥µ¥¤¥º¤Ç»È¤¦ */
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int32_t fs_state; /* fs_clean ¥Õ¥£¡¼¥ë¥É¤¬Í¸ú¤Ç¤¢¤ë¤³¤È¤ò¼¨¤¹ */
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int32_t fs_old_postblformat; /* °ÌÃ֥쥤¥¢¥¦¥È¥Æ¡¼¥Ö¥ë¤Î¥Õ¥©¡¼¥Þ¥Ã¥È */
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int32_t fs_old_nrpos; /* ²óž°ÌÃ֤οô */
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int32_t fs_spare5[2]; /* ¸Å¤¤ fs_postbloff */
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/* ¸Å¤¤ fs_rotbloff */
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int32_t fs_magic; /* ¥Þ¥¸¥Ã¥¯¥Ê¥ó¥Ð */
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};
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/*
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* ¥Õ¥¡¥¤¥ë¥·¥¹¥Æ¥à¼±ÊÌ
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*/
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#define FS_UFS1_MAGIC 0x011954 /* UFS1 ¥Õ¥¡¥¹¥È¥Õ¥¡¥¤¥ë¥·¥¹¥Æ¥à¤Î¥Þ¥¸¥Ã¥¯¥Ê¥ó¥Ð */
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#define FS_UFS2_MAGIC 0x19540119 /* UFS2 ¥Õ¥¡¥¹¥È¥Õ¥¡¥¤¥ë¥·¥¹¥Æ¥à¤Î¥Þ¥¸¥Ã¥¯¥Ê¥ó¥Ð */
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#define FS_OKAY 0x7c269d38 /* ¥¹¡¼¥Ñ¥Ö¥í¥Ã¥¯¥Á¥§¥Ã¥¯¥µ¥à */
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#define FS_42INODEFMT -1 /* 4.2BSD inode ¥Õ¥©¡¼¥Þ¥Ã¥È */
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#define FS_44INODEFMT 2 /* 4.4BSD inode ¥Õ¥©¡¼¥Þ¥Ã¥È */
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/*
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* ºÇŬ²½¤Î¤¿¤á¤ÎÁªÂò
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*/
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#define FS_OPTTIME 0 /* ºÇ¾®¥¢¥í¥±¡¼¥·¥ç¥ó»þ´Ö */
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#define FS_OPTSPACE 1 /* ºÇ¾®¥Ç¥£¥¹¥¯¥Õ¥é¥°¥á¥ó¥Æ¡¼¥·¥ç¥ó */
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.Ed
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.Pp
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³Æ¥Ç¥£¥¹¥¯¥É¥é¥¤¥Ö¤Ï¤¤¤¯¤Ä¤«¤Î¥Õ¥¡¥¤¥ë¥·¥¹¥Æ¥à¤ò´Þ¤ó¤Ç¤¤¤Þ¤¹¡£
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1 ¤Ä¤Î¥Õ¥¡¥¤¥ë¥·¥¹¥Æ¥à¤Ï¡¢¤¤¤¯¤Ä¤«¤Î¥·¥ê¥ó¥À¥°¥ë¡¼¥×¤«¤éÀ®¤ê¤Þ¤¹¡£
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³Æ¥·¥ê¥ó¥À¥°¥ë¡¼¥×¤Ë¤Ï inode ¤È¥Ç¡¼¥¿¤¬¤¢¤ê¤Þ¤¹¡£
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inode ¤ËÊݸ¤µ¤ì¤¿¥¢¥É¥ì¥¹¤Ë¤è¤Ã¤Æ¡¢`¥Ö¥í¥Ã¥¯' ¤Î¥Õ¥é¥°¥á¥ó¥È¤Î
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.Dv MAXBSIZE
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