The Design and Implementation of the FreeBSD Operating System, Second Edition
Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)


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FreeBSD/Linux Kernel Cross Reference
sys/bsd/sys/dirent.h

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    1 /*
    2  * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
    3  *
    4  * @APPLE_LICENSE_HEADER_START@
    5  * 
    6  * Copyright (c) 1999-2003 Apple Computer, Inc.  All Rights Reserved.
    7  * 
    8  * This file contains Original Code and/or Modifications of Original Code
    9  * as defined in and that are subject to the Apple Public Source License
   10  * Version 2.0 (the 'License'). You may not use this file except in
   11  * compliance with the License. Please obtain a copy of the License at
   12  * http://www.opensource.apple.com/apsl/ and read it before using this
   13  * file.
   14  * 
   15  * The Original Code and all software distributed under the License are
   16  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
   17  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
   18  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
   19  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
   20  * Please see the License for the specific language governing rights and
   21  * limitations under the License.
   22  * 
   23  * @APPLE_LICENSE_HEADER_END@
   24  */
   25 /* Copyright (c) 1995 NeXT Computer, Inc. All Rights Reserved */
   26 /*-
   27  * Copyright (c) 1989, 1993
   28  *      The Regents of the University of California.  All rights reserved.
   29  *
   30  * Redistribution and use in source and binary forms, with or without
   31  * modification, are permitted provided that the following conditions
   32  * are met:
   33  * 1. Redistributions of source code must retain the above copyright
   34  *    notice, this list of conditions and the following disclaimer.
   35  * 2. Redistributions in binary form must reproduce the above copyright
   36  *    notice, this list of conditions and the following disclaimer in the
   37  *    documentation and/or other materials provided with the distribution.
   38  * 3. All advertising materials mentioning features or use of this software
   39  *    must display the following acknowledgement:
   40  *      This product includes software developed by the University of
   41  *      California, Berkeley and its contributors.
   42  * 4. Neither the name of the University nor the names of its contributors
   43  *    may be used to endorse or promote products derived from this software
   44  *    without specific prior written permission.
   45  *
   46  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
   47  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   48  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   49  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
   50  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   51  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   52  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   53  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   54  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   55  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   56  * SUCH DAMAGE.
   57  *
   58  *      @(#)dirent.h    8.3 (Berkeley) 8/10/94
   59  */
   60 
   61 /*
   62  * The dirent structure defines the format of directory entries returned by 
   63  * the getdirentries(2) system call.
   64  *
   65  * A directory entry has a struct dirent at the front of it, containing its
   66  * inode number, the length of the entry, and the length of the name
   67  * contained in the entry.  These are followed by the name padded to a 4
   68  * byte boundary with null bytes.  All names are guaranteed null terminated.
   69  * The maximum length of a name in a directory is MAXNAMLEN.
   70  */
   71 
   72 #ifndef _SYS_DIRENT_H 
   73 #define _SYS_DIRENT_H 
   74 
   75 struct dirent {
   76         u_int32_t d_fileno;             /* file number of entry */
   77         u_int16_t d_reclen;             /* length of this record */
   78         u_int8_t  d_type;               /* file type, see below */
   79         u_int8_t  d_namlen;             /* length of string in d_name */
   80 #ifdef _POSIX_SOURCE
   81         char    d_name[255 + 1];        /* name must be no longer than this */
   82 #else
   83 #define MAXNAMLEN       255
   84         char    d_name[MAXNAMLEN + 1];  /* name must be no longer than this */
   85 #endif
   86 };
   87 
   88 /*
   89  * File types
   90  */
   91 #define DT_UNKNOWN       0
   92 #define DT_FIFO          1
   93 #define DT_CHR           2
   94 #define DT_DIR           4
   95 #define DT_BLK           6
   96 #define DT_REG           8
   97 #define DT_LNK          10
   98 #define DT_SOCK         12
   99 #define DT_WHT          14
  100 
  101 /*
  102  * Convert between stat structure types and directory types.
  103  */
  104 #define IFTODT(mode)    (((mode) & 0170000) >> 12)
  105 #define DTTOIF(dirtype) ((dirtype) << 12)
  106 
  107 #endif /* _SYS_DIRENT_H  */

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