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+/* $OpenBSD: dirent.h,v 1.11 2013/12/13 18:09:27 zhuk Exp $ */
+/* $NetBSD: dirent.h,v 1.12 1996/04/09 20:55:25 cgd Exp $ */
+
+/*-
+ * Copyright (c) 1989, 1993
+ * The Regents of the University of California. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * @(#)dirent.h 8.3 (Berkeley) 8/10/94
+ */
+
+#ifndef _SYS_DIRENT_H_
+#define _SYS_DIRENT_H_
+
+#include <sys/cdefs.h>
+
+/*
+ * The dirent structure defines the format of directory entries returned by
+ * the getdents(2) system call.
+ *
+ * A directory entry has a struct dirent at the front of it, containing its
+ * inode number, the length of the entry, and the length of the name
+ * contained in the entry. These are followed by the name padded to a 4
+ * byte boundary with null bytes. All names are guaranteed null terminated.
+ * The maximum length of a name in a directory is MAXNAMLEN.
+ */
+
+struct dirent {
+ __ino_t d_fileno; /* file number of entry */
+ __off_t d_off; /* offset after this entry */
+ __uint16_t d_reclen; /* length of this record */
+ __uint8_t d_type; /* file type, see below */
+ __uint8_t d_namlen; /* length of string in d_name */
+ __uint8_t __d_padding[4]; /* suppress padding after d_name */
+#if __BSD_VISIBLE
+#define MAXNAMLEN 255
+ char d_name[MAXNAMLEN + 1]; /* name must be no longer than this */
+#else
+ char d_name[255 + 1]; /* name must be no longer than this */
+#endif
+};
+
+#if __BSD_VISIBLE
+/*
+ * File types
+ */
+#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
+
+/*
+ * Convert between stat structure types and directory types.
+ */
+#define IFTODT(mode) (((mode) & 0170000) >> 12)
+#define DTTOIF(dirtype) ((dirtype) << 12)
+
+#ifdef _KERNEL
+/*
+ * The DIRENT_RECSIZE macro gives the minimum record length which will hold
+ * a directory entry with a name of the given length, including the terminating
+ * nul byte, rounded up to proper alignment.
+ * The DIRENT_SIZE macro does the same when given a pointer to a struct dirent
+ */
+#define DIRENT_RECSIZE(namelen) \
+ ((offsetof(struct dirent, d_name) + (namelen) + 1 + 7) &~ 7)
+#define DIRENT_SIZE(dp) \
+ DIRENT_RECSIZE((dp)->d_namlen)
+#endif
+
+#endif /* __BSD_VISIBLE */
+
+#endif /* _SYS_DIRENT_H_ */