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