doc/documentation/manual-pages/ja/man5/dir.5

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.\"     @(#)dir.5	8.3 (Berkeley) 4/19/94
.\" %FreeBSD: src/share/man/man5/dir.5,v 1.20 2003/09/10 19:24:35 ru Exp %
.\"
.\" $FreeBSD$
.\"
.\" WORD: graft Àܹç [mount.8]
.Dd April 19, 1994
.Dt DIR 5
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#ifndef	_SYS_DIRENT_H_
#define	_SYS_DIRENT_H_

#include <machine/ansi.h>

/*
 * dirent ¹½Â¤ÂΤϡ¢getdirentries(2) ¥·¥¹¥Æ¥à¥³¡¼¥ë¤ÇÊÖ¤µ¤ì¤ë
 * ¥Ç¥£¥ì¥¯¥È¥ê¥¨¥ó¥È¥ê¤Î¥Õ¥©¡¼¥Þ¥Ã¥È¤òÄêµÁ¤·¤Þ¤¹¡£
 *
 * ¥Ç¥£¥ì¥¯¥È¥ê¥¨¥ó¥È¥ê¤Ï¤½¤ÎÀèƬ¤Ë dirent ¹½Â¤ÂΤò»ý¤Á¤Þ¤¹¡£dirent
 * ¹½Â¤ÂÎ¤Ï inode Èֹ桢¤½¤Î¥¨¥ó¥È¥ê¤ÎŤµ¡¢¤½¤Î¥¨¥ó¥È¥ê¤Ë´Þ¤Þ¤ì¤ë
 * ̾Á°¤ÎŤµ¤òÊÝ»ý¤·¤Þ¤¹¡£¤½¤Î¸å¤Ë¡¢¥Ê¥ë¤Ç 4 ¥Ð¥¤¥È¶­³¦¤Þ¤Ç¥Ñ¥Ç¥£¥ó¥°
 * ¤·¤¿Ì¾Á°¤¬Â³¤­¤Þ¤¹¡£Ì¾Á°¤ÏÁ´¤Æ¥Ê¥ë¤Ç½ªÃ¼¤·¤Æ¤¤¤ë¤³¤È¤¬Êݾڤµ¤ì¤Þ¤¹¡£
 * ¥Ç¥£¥ì¥¯¥È¥êÃæ¤Î̾Á°¤ÎŤµ¤ÎºÇÂçÃÍ¤Ï MAXNAMLEN ¤Ç¤¹¡£
 */

struct dirent {
	__uint32_t d_fileno;		/* ¥¨¥ó¥È¥ê¤Î¥Õ¥¡¥¤¥ëÈÖ¹æ */
	__uint16_t d_reclen;		/* ¤³¤Î¥ì¥³¡¼¥É¤ÎŤµ */
	__uint8_t  d_type; 		/* ¥Õ¥¡¥¤¥ë¥¿¥¤¥×¡¢°Ê²¼»²¾È */
	__uint8_t  d_namlen;		/* d_name ¤Îʸ»úÎóĹ */
#ifdef _POSIX_SOURCE
	char	d_name[255 + 1];	/* ̾Á°¤Ï¤³¤ÎŤµ¤ò±Û¤¨¤Æ¤Ï¤Ê¤é¤Ê¤¤ */
#else
#define MAXNAMLEN       255
	char    d_name[MAXNAMLEN + 1];  /* ̾Á°¤Ï¤³¤ÎŤµ¤ò±Û¤¨¤Æ¤Ï¤Ê¤é¤Ê¤¤ */
#endif

};

/*
 * ¥Õ¥¡¥¤¥ë¥¿¥¤¥×
 */
#define	DT_UNKNOWN	 0
#define	DT_FIFO		 1
#define	DT_CHR		 2
#define	DT_DIR		 4
#define	DT_BLK		 6
#define	DT_REG		 8
#define	DT_LNK		10
#define	DT_SOCK		12
#define	DT_WHT		14

/*
 * stat ¹½Â¤Âη¿¤È¥Ç¥£¥ì¥¯¥È¥ê·¿¤È¤ÎÊÑ´¹
 */
#define	IFTODT(mode)	(((mode) & 0170000) >> 12)
#define	DTTOIF(dirtype)	((dirtype) << 12)

/*
 * _GENERIC_DIRSIZ ¥Þ¥¯¥í¤Ï¥Ç¥£¥ì¥¯¥È¥ê¥¨¥ó¥È¥ê¤òÊÝ»ý¤¹¤ëºÇ¾®¥ì¥³¡¼¥ÉŤò
 * Í¿¤¨¤Þ¤¹¡£¤³¤ì¤Ï d_name ¥Õ¥£¡¼¥ë¥É°Ê³°¤Î dirent ¹½Â¤ÂΤζõ´Ö¤Ë¡¢¥Ê¥ë
 * ¥Ð¥¤¥È¤Ç½ªÃ¼¤µ¤ì¤ë̾Á°¤Î¤¿¤á¤Ë½½Ê¬¤Ê¶õ´Ö (dp->d_namlen+1) ¤ò²Ã¤¨¤¿¤â¤Î
 * ¤ò¡¢4 ¥Ð¥¤¥Èñ°Ì¤Ç·«¤ê¾å¤²¤¿¤â¤Î¤Ç¤¹¡£
 */
#define	_GENERIC_DIRSIZ(dp) \
    ((sizeof (struct dirent) - (MAXNAMLEN+1)) + (((dp)->d_namlen+1 + 3) &~ 3))

#ifdef _KERNEL
#define	GENERIC_DIRSIZ(dp)	_GENERIC_DIRSIZ(dp)
#endif

#endif /* !_SYS_DIRENT_H_ */
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