1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License (the "License"). 6 * You may not use this file except in compliance with the License. 7 * 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9 * or http://www.opensolaris.org/os/licensing. 10 * See the License for the specific language governing permissions 11 * and limitations under the License. 12 * 13 * When distributing Covered Code, include this CDDL HEADER in each 14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15 * If applicable, add the following below this CDDL HEADER, with the 16 * fields enclosed by brackets "[]" replaced with your own identifying 17 * information: Portions Copyright [yyyy] [name of copyright owner] 18 * 19 * CDDL HEADER END 20 */ 21 /* Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */ 22 /* All Rights Reserved */ 23 24 25 /* 26 * Copyright 2014 Garrett D'Amore <garrett@damore.org> 27 * 28 * Copyright 2009 Sun Microsystems, Inc. All rights reserved. 29 * Use is subject to license terms. 30 */ 31 32 #ifndef _SYS_DIRENT_H 33 #define _SYS_DIRENT_H 34 35 #include <sys/feature_tests.h> 36 37 #ifdef __cplusplus 38 extern "C" { 39 #endif 40 41 /* 42 * File-system independent directory entry. 43 */ 44 typedef struct dirent { 45 ino_t d_ino; /* "inode number" of entry */ 46 off_t d_off; /* offset of disk directory entry */ 47 unsigned short d_reclen; /* length of this record */ 48 char d_name[1]; /* name of file */ 49 } dirent_t; 50 51 #if defined(_SYSCALL32) 52 53 /* kernel's view of user ILP32 dirent */ 54 55 typedef struct dirent32 { 56 ino32_t d_ino; /* "inode number" of entry */ 57 off32_t d_off; /* offset of disk directory entry */ 58 uint16_t d_reclen; /* length of this record */ 59 char d_name[1]; /* name of file */ 60 } dirent32_t; 61 62 #endif /* _SYSCALL32 */ 63 64 #ifdef _LARGEFILE64_SOURCE 65 66 /* 67 * transitional large file interface version AND kernel internal version 68 */ 69 typedef struct dirent64 { 70 ino64_t d_ino; /* "inode number" of entry */ 71 off64_t d_off; /* offset of disk directory entry */ 72 unsigned short d_reclen; /* length of this record */ 73 char d_name[1]; /* name of file */ 74 } dirent64_t; 75 76 #endif /* _LARGEFILE64_SOURCE */ 77 78 #if !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__) 79 #if defined(_KERNEL) 80 #define DIRENT64_RECLEN(namelen) \ 81 ((offsetof(dirent64_t, d_name[0]) + 1 + (namelen) + 7) & ~ 7) 82 #define DIRENT64_NAMELEN(reclen) \ 83 ((reclen) - (offsetof(dirent64_t, d_name[0]))) 84 #define DIRENT32_RECLEN(namelen) \ 85 ((offsetof(dirent32_t, d_name[0]) + 1 + (namelen) + 3) & ~ 3) 86 #define DIRENT32_NAMELEN(reclen) \ 87 ((reclen) - (offsetof(dirent32_t, d_name[0]))) 88 #endif 89 90 /* 91 * This is the maximum number of bytes that getdents(2) will store in 92 * user-supplied dirent buffers. 93 */ 94 #define MAXGETDENTS_SIZE (64 * 1024) 95 96 #if !defined(_KERNEL) 97 98 /* 99 * large file compilation environment setup 100 * 101 * In the LP64 compilation environment, map large file interfaces 102 * back to native versions where possible. (This only works because 103 * a 'struct dirent' == 'struct dirent64'). 104 */ 105 106 #if !defined(_LP64) && _FILE_OFFSET_BITS == 64 107 #ifdef __PRAGMA_REDEFINE_EXTNAME 108 #pragma redefine_extname getdents getdents64 109 #else 110 #define getdents getdents64 111 #endif 112 #endif /* !_LP64 && _FILE_OFFSET_BITS == 64 */ 113 114 #if defined(_LP64) && defined(_LARGEFILE64_SOURCE) 115 #ifdef __PRAGMA_REDEFINE_EXTNAME 116 #pragma redefine_extname getdents64 getdents 117 #else 118 #define getdents64 getdents 119 #define dirent64 dirent 120 #define dirent64_t dirent_t 121 #endif 122 #endif /* _LP64 && _LARGEFILE64_SOURCE */ 123 124 extern int getdents(int, struct dirent *, size_t); 125 126 /* N.B.: transitional large file interface version deliberately not provided */ 127 128 #endif /* !defined(_KERNEL) */ 129 #endif /* !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__) */ 130 131 #ifdef __cplusplus 132 } 133 #endif 134 135 #endif /* _SYS_DIRENT_H */ 136