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33 * @(#)dirent.h 8.3 (Berkeley) 8/10/94
34 * $FreeBSD: src/sys/sys/dirent.h,v 1.11 1999/12/29 04:24:39 peter Exp $
35 * $DragonFly: src/sys/sys/dirent.h,v 1.2 2003/06/17 04:28:58 dillon Exp $
38 #ifndef _SYS_DIRENT_H_
39 #define _SYS_DIRENT_H_
41 #include <machine/ansi.h>
44 * The dirent structure defines the format of directory entries returned by
45 * the getdirentries(2) system call.
47 * A directory entry has a struct dirent at the front of it, containing its
48 * inode number, the length of the entry, and the length of the name
49 * contained in the entry. These are followed by the name padded to a 4
50 * byte boundary with null bytes. All names are guaranteed null terminated.
51 * The maximum length of a name in a directory is MAXNAMLEN.
55 __uint32_t d_fileno; /* file number of entry */
56 __uint16_t d_reclen; /* length of this record */
57 __uint8_t d_type; /* file type, see below */
58 __uint8_t d_namlen; /* length of string in d_name */
60 char d_name[255 + 1]; /* name must be no longer than this */
63 char d_name[MAXNAMLEN + 1]; /* name must be no longer than this */
81 * Convert between stat structure types and directory types.
83 #define IFTODT(mode) (((mode) & 0170000) >> 12)
84 #define DTTOIF(dirtype) ((dirtype) << 12)
87 * The _GENERIC_DIRSIZ macro gives the minimum record length which will hold
88 * the directory entry. This requires the amount of space in struct direct
89 * without the d_name field, plus enough space for the name with a terminating
90 * null byte (dp->d_namlen+1), rounded up to a 4 byte boundary.
92 #define _GENERIC_DIRSIZ(dp) \
93 ((sizeof (struct dirent) - (MAXNAMLEN+1)) + (((dp)->d_namlen+1 + 3) &~ 3))
96 #define GENERIC_DIRSIZ(dp) _GENERIC_DIRSIZ(dp)
99 #endif /* !_SYS_DIRENT_H_ */