1 /*- 2 * Copyright (c) 1989, 1993 3 * The Regents of the University of California. All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 3. All advertising materials mentioning features or use of this software 14 * must display the following acknowledgement: 15 * This product includes software developed by the University of 16 * California, Berkeley and its contributors. 17 * 4. Neither the name of the University nor the names of its contributors 18 * may be used to endorse or promote products derived from this software 19 * without specific prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31 * SUCH DAMAGE. 32 * 33 * @(#)dirent.h 8.2 (Berkeley) 7/28/94 34 * $FreeBSD$ 35 */ 36 37 #ifndef _DIRENT_H_ 38 #define _DIRENT_H_ 39 40 /* 41 * The kernel defines the format of directory entries returned by 42 * the getdirentries(2) system call. 43 */ 44 #include <sys/cdefs.h> 45 #include <sys/dirent.h> 46 47 #if __BSD_VISIBLE || __XSI_VISIBLE 48 /* 49 * XXX this is probably illegal in the __XSI_VISIBLE case, but brings us closer 50 * to the specification. 51 */ 52 #define d_ino d_fileno /* backward and XSI compatibility */ 53 #endif 54 55 #if __BSD_VISIBLE 56 57 #include <sys/_null.h> 58 59 /* definitions for library routines operating on directories. */ 60 #define DIRBLKSIZ 1024 61 62 struct _telldir; /* see telldir.h */ 63 struct pthread_mutex; 64 65 /* structure describing an open directory. */ 66 typedef struct _dirdesc { 67 int dd_fd; /* file descriptor associated with directory */ 68 long dd_loc; /* offset in current buffer */ 69 long dd_size; /* amount of data returned by getdirentries */ 70 char *dd_buf; /* data buffer */ 71 int dd_len; /* size of data buffer */ 72 long dd_seek; /* magic cookie returned by getdirentries */ 73 long dd_rewind; /* magic cookie for rewinding */ 74 int dd_flags; /* flags for readdir */ 75 struct pthread_mutex *dd_lock; /* lock */ 76 struct _telldir *dd_td; /* telldir position recording */ 77 } DIR; 78 79 #define dirfd(dirp) ((dirp)->dd_fd) 80 81 /* flags for opendir2 */ 82 #define DTF_HIDEW 0x0001 /* hide whiteout entries */ 83 #define DTF_NODUP 0x0002 /* don't return duplicate names */ 84 #define DTF_REWIND 0x0004 /* rewind after reading union stack */ 85 #define __DTF_READALL 0x0008 /* everything has been read */ 86 87 #else /* !__BSD_VISIBLE */ 88 89 typedef void * DIR; 90 91 #endif /* __BSD_VISIBLE */ 92 93 #ifndef _KERNEL 94 95 __BEGIN_DECLS 96 #if __POSIX_VISIBLE >= 200809 || __XSI_VISIBLE >= 700 97 int alphasort(const struct dirent **, const struct dirent **); 98 #endif 99 #if __BSD_VISIBLE 100 DIR *__opendir2(const char *, int); 101 int getdents(int, char *, int); 102 int getdirentries(int, char *, int, long *); 103 #endif 104 DIR *opendir(const char *); 105 DIR *fdopendir(int); 106 struct dirent * 107 readdir(DIR *); 108 #if __POSIX_VISIBLE >= 199506 || __XSI_VISIBLE >= 500 109 int readdir_r(DIR *, struct dirent *, struct dirent **); 110 #endif 111 void rewinddir(DIR *); 112 #if __POSIX_VISIBLE >= 200809 || __XSI_VISIBLE >= 700 113 int scandir(const char *, struct dirent ***, 114 int (*)(const struct dirent *), int (*)(const struct dirent **, 115 const struct dirent **)); 116 #endif 117 #if __XSI_VISIBLE 118 void seekdir(DIR *, long); 119 long telldir(DIR *); 120 #endif 121 int closedir(DIR *); 122 __END_DECLS 123 124 #endif /* !_KERNEL */ 125 126 #endif /* !_DIRENT_H_ */ 127