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Annotation of XNU/bsd/sys/dirent.h, revision 1.1

1.1     ! root        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  */

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