bsd/sys/dirent.h

   1 /*
   2  * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
   3  *
   4  * @APPLE_LICENSE_HEADER_START@
   5  *
   6  * The contents of this file constitute Original Code as defined in and
   7  * are subject to the Apple Public Source License Version 1.1 (the
   8  * "License").  You may not use this file except in compliance with the
   9  * License.  Please obtain a copy of the License at
  10  * http://www.apple.com/publicsource and read it before using this file.
  11  *
  12  * This Original Code and all software distributed under the License are
  13  * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  14  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  15  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  16  * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.  Please see the
  17  * License for the specific language governing rights and limitations
  18  * under the License.
  19  *
  20  * @APPLE_LICENSE_HEADER_END@
  21  */
  22 /* Copyright (c) 1995 NeXT Computer, Inc. All Rights Reserved */
  23 /*-
  24  * Copyright (c) 1989, 1993
  25  *      The Regents of the University of California.  All rights reserved.
  26  *
  27  * Redistribution and use in source and binary forms, with or without
  28  * modification, are permitted provided that the following conditions
  29  * are met:
  30  * 1. Redistributions of source code must retain the above copyright
  31  *    notice, this list of conditions and the following disclaimer.
  32  * 2. Redistributions in binary form must reproduce the above copyright
  33  *    notice, this list of conditions and the following disclaimer in the
  34  *    documentation and/or other materials provided with the distribution.
  35  * 3. All advertising materials mentioning features or use of this software
  36  *    must display the following acknowledgement:
  37  *      This product includes software developed by the University of
  38  *      California, Berkeley and its contributors.
  39  * 4. Neither the name of the University nor the names of its contributors
  40  *    may be used to endorse or promote products derived from this software
  41  *    without specific prior written permission.
  42  *
  43  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  44  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  45  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  46  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  47  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  48  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  49  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  50  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  51  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  52  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  53  * SUCH DAMAGE.
  54  *
  55  *      @(#)dirent.h    8.3 (Berkeley) 8/10/94
  56  */
  57
  58 /*
  59  * The dirent structure defines the format of directory entries returned by
  60  * the getdirentries(2) system call.
  61  *
  62  * A directory entry has a struct dirent at the front of it, containing its
  63  * inode number, the length of the entry, and the length of the name
  64  * contained in the entry.  These are followed by the name padded to a 4
  65  * byte boundary with null bytes.  All names are guaranteed null terminated.
  66  * The maximum length of a name in a directory is MAXNAMLEN.
  67  */
  68
  69 #ifndef _SYS_DIRENT_H
  70 #define _SYS_DIRENT_H
  71
  72 struct dirent {
  73         u_int32_t d_fileno;             /* file number of entry */
  74         u_int16_t d_reclen;             /* length of this record */
  75         u_int8_t  d_type;               /* file type, see below */
  76         u_int8_t  d_namlen;             /* length of string in d_name */
  77 #ifdef _POSIX_SOURCE
  78         char    d_name[255 + 1];        /* name must be no longer than this */
  79 #else
  80 #define MAXNAMLEN       255
  81         char    d_name[MAXNAMLEN + 1];  /* name must be no longer than this */
  82 #endif
  83 };
  84
  85 /*
  86  * File types
  87  */
  88 #define DT_UNKNOWN       0
  89 #define DT_FIFO          1
  90 #define DT_CHR           2
  91 #define DT_DIR           4
  92 #define DT_BLK           6
  93 #define DT_REG           8
  94 #define DT_LNK          10
  95 #define DT_SOCK         12
  96 #define DT_WHT          14
  97
  98 /*
  99  * Convert between stat structure types and directory types.
 100  */
 101 #define IFTODT(mode)    (((mode) & 0170000) >> 12)
 102 #define DTTOIF(dirtype) ((dirtype) << 12)
 103
 104 #endif /* _SYS_DIRENT_H  */