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/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License (the "License").
* You may not use this file except in compliance with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/* Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */
/* All Rights Reserved */
/*
* Copyright 2009 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
#ifndef _SYS_DIRENT_H
#define _SYS_DIRENT_H
#include <sys/feature_tests.h>
#ifdef __cplusplus
extern "C" {
#endif
/*
* File-system independent directory entry.
*/
typedef struct dirent {
ino_t d_ino; /* "inode number" of entry */
off_t d_off; /* offset of disk directory entry */
unsigned short d_reclen; /* length of this record */
char d_name[1]; /* name of file */
} dirent_t;
#if defined(_SYSCALL32)
/* kernel's view of user ILP32 dirent */
typedef struct dirent32 {
ino32_t d_ino; /* "inode number" of entry */
off32_t d_off; /* offset of disk directory entry */
uint16_t d_reclen; /* length of this record */
char d_name[1]; /* name of file */
} dirent32_t;
#endif /* _SYSCALL32 */
#ifdef _LARGEFILE64_SOURCE
/*
* transitional large file interface version AND kernel internal version
*/
typedef struct dirent64 {
ino64_t d_ino; /* "inode number" of entry */
off64_t d_off; /* offset of disk directory entry */
unsigned short d_reclen; /* length of this record */
char d_name[1]; /* name of file */
} dirent64_t;
#endif /* _LARGEFILE64_SOURCE */
#if !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__)
#if defined(_KERNEL)
#define DIRENT64_RECLEN(namelen) \
((offsetof(dirent64_t, d_name[0]) + 1 + (namelen) + 7) & ~ 7)
#define DIRENT64_NAMELEN(reclen) \
((reclen) - (offsetof(dirent64_t, d_name[0])))
#define DIRENT32_RECLEN(namelen) \
((offsetof(dirent32_t, d_name[0]) + 1 + (namelen) + 3) & ~ 3)
#define DIRENT32_NAMELEN(reclen) \
((reclen) - (offsetof(dirent32_t, d_name[0])))
#endif
/*
* This is the maximum number of bytes that getdents(2) will store in
* user-supplied dirent buffers.
*/
#define MAXGETDENTS_SIZE (64 * 1024)
#if !defined(_KERNEL)
/*
* large file compilation environment setup
*
* In the LP64 compilation environment, map large file interfaces
* back to native versions where possible. (This only works because
* a 'struct dirent' == 'struct dirent64').
*/
#if !defined(_LP64) && _FILE_OFFSET_BITS == 64
#ifdef __PRAGMA_REDEFINE_EXTNAME
#pragma redefine_extname getdents getdents64
#else
#define getdents getdents64
#endif
#endif /* !_LP64 && _FILE_OFFSET_BITS == 64 */
#if defined(_LP64) && defined(_LARGEFILE64_SOURCE)
#ifdef __PRAGMA_REDEFINE_EXTNAME
#pragma redefine_extname getdents64 getdents
#else
#define getdents64 getdents
#define dirent64 dirent
#define dirent64_t dirent_t
#endif
#endif /* _LP64 && _LARGEFILE64_SOURCE */
#if defined(__STDC__)
extern int getdents(int, struct dirent *, size_t);
#else
extern int getdents();
#endif
/* N.B.: transitional large file interface version deliberately not provided */
#endif /* !defined(_KERNEL) */
#endif /* !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__) */
#ifdef __cplusplus
}
#endif
#endif /* _SYS_DIRENT_H */
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