1*29295d1cSmillert /* $OpenBSD: dirent.h,v 1.5 2003/06/02 23:28:21 millert Exp $ */ 2d724e01aSderaadt /* $NetBSD: dirent.h,v 1.12 1996/04/09 20:55:25 cgd Exp $ */ 3df930be7Sderaadt 4df930be7Sderaadt /*- 5df930be7Sderaadt * Copyright (c) 1989, 1993 6df930be7Sderaadt * The Regents of the University of California. All rights reserved. 7df930be7Sderaadt * 8df930be7Sderaadt * Redistribution and use in source and binary forms, with or without 9df930be7Sderaadt * modification, are permitted provided that the following conditions 10df930be7Sderaadt * are met: 11df930be7Sderaadt * 1. Redistributions of source code must retain the above copyright 12df930be7Sderaadt * notice, this list of conditions and the following disclaimer. 13df930be7Sderaadt * 2. Redistributions in binary form must reproduce the above copyright 14df930be7Sderaadt * notice, this list of conditions and the following disclaimer in the 15df930be7Sderaadt * documentation and/or other materials provided with the distribution. 16*29295d1cSmillert * 3. Neither the name of the University nor the names of its contributors 17df930be7Sderaadt * may be used to endorse or promote products derived from this software 18df930be7Sderaadt * without specific prior written permission. 19df930be7Sderaadt * 20df930be7Sderaadt * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 21df930be7Sderaadt * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 22df930be7Sderaadt * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 23df930be7Sderaadt * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 24df930be7Sderaadt * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 25df930be7Sderaadt * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 26df930be7Sderaadt * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 27df930be7Sderaadt * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 28df930be7Sderaadt * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 29df930be7Sderaadt * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 30df930be7Sderaadt * SUCH DAMAGE. 31df930be7Sderaadt * 32df930be7Sderaadt * @(#)dirent.h 8.3 (Berkeley) 8/10/94 33df930be7Sderaadt */ 34df930be7Sderaadt 35df930be7Sderaadt /* 36df930be7Sderaadt * The dirent structure defines the format of directory entries returned by 37df930be7Sderaadt * the getdirentries(2) system call. 38df930be7Sderaadt * 39df930be7Sderaadt * A directory entry has a struct dirent at the front of it, containing its 40df930be7Sderaadt * inode number, the length of the entry, and the length of the name 41df930be7Sderaadt * contained in the entry. These are followed by the name padded to a 4 42df930be7Sderaadt * byte boundary with null bytes. All names are guaranteed null terminated. 43df930be7Sderaadt * The maximum length of a name in a directory is MAXNAMLEN. 44df930be7Sderaadt */ 45df930be7Sderaadt 46df930be7Sderaadt struct dirent { 47df930be7Sderaadt u_int32_t d_fileno; /* file number of entry */ 48df930be7Sderaadt u_int16_t d_reclen; /* length of this record */ 49df930be7Sderaadt u_int8_t d_type; /* file type, see below */ 50df930be7Sderaadt u_int8_t d_namlen; /* length of string in d_name */ 51df930be7Sderaadt #ifdef _POSIX_SOURCE 52df930be7Sderaadt char d_name[255 + 1]; /* name must be no longer than this */ 53df930be7Sderaadt #else 54df930be7Sderaadt #define MAXNAMLEN 255 55df930be7Sderaadt char d_name[MAXNAMLEN + 1]; /* name must be no longer than this */ 56df930be7Sderaadt #endif 57df930be7Sderaadt }; 58df930be7Sderaadt 59df930be7Sderaadt /* 60df930be7Sderaadt * File types 61df930be7Sderaadt */ 62df930be7Sderaadt #define DT_UNKNOWN 0 63df930be7Sderaadt #define DT_FIFO 1 64df930be7Sderaadt #define DT_CHR 2 65df930be7Sderaadt #define DT_DIR 4 66df930be7Sderaadt #define DT_BLK 6 67df930be7Sderaadt #define DT_REG 8 68df930be7Sderaadt #define DT_LNK 10 69df930be7Sderaadt #define DT_SOCK 12 70df930be7Sderaadt #define DT_WHT 14 71df930be7Sderaadt 72df930be7Sderaadt /* 73df930be7Sderaadt * Convert between stat structure types and directory types. 74df930be7Sderaadt */ 75df930be7Sderaadt #define IFTODT(mode) (((mode) & 0170000) >> 12) 76df930be7Sderaadt #define DTTOIF(dirtype) ((dirtype) << 12) 7729668b55Sniklas 7829668b55Sniklas #if defined(_KERNEL) 7929668b55Sniklas /* 8029668b55Sniklas * The DIRENT_SIZE macro gives the minimum record length which will hold 8129668b55Sniklas * the directory entry. This requires the amount of space in struct dirent 8229668b55Sniklas * without the d_name field, plus enough space for the name with a terminating 8329668b55Sniklas * null byte (dp->d_namlen+1), rounded up to a 4 byte boundary. 8429668b55Sniklas */ 8529668b55Sniklas #define DIRENT_SIZE(dp) \ 8629668b55Sniklas ((sizeof (struct dirent) - (MAXNAMLEN+1)) + (((dp)->d_namlen+1 + 3) &~ 3)) 8729668b55Sniklas 8829668b55Sniklas #endif /* !_KERNEL */ 89