include/dirent.h

   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
  22 /*
  23  * Copyright 2014 Garrett D'Amore <garrett@damore.org>
  24  *
  25  * Copyright 2007 Sun Microsystems, Inc.  All rights reserved.
  26  * Use is subject to license terms.
  27  */
  28
  29 /*      Copyright (c) 1988 AT&T */
  30 /*        All Rights Reserved   */
  31
  32 #ifndef _DIRENT_H
  33 #define _DIRENT_H
  34
  35 #include <sys/feature_tests.h>
  36
  37 #include <sys/types.h>
  38 #include <sys/dirent.h>
  39
  40 #ifdef  __cplusplus
  41 extern "C" {
  42 #endif
  43
  44 #if defined(__EXTENSIONS__) || !defined(__XOPEN_OR_POSIX)
  45
  46 #define MAXNAMLEN       512             /* maximum filename length */
  47 #define DIRBUF          8192            /* buffer size for fs-indep. dirs */
  48
  49 #endif /* defined(__EXTENSIONS__) || !defined(__XOPEN_OR_POSIX) */
  50
  51 #if !defined(__XOPEN_OR_POSIX)
  52
  53 typedef struct {
  54         int     dd_fd;          /* file descriptor */
  55         int     dd_loc;         /* offset in block */
  56         int     dd_size;        /* amount of valid data */
  57         char    *dd_buf;        /* directory block */
  58 } DIR;                          /* stream data from opendir() */
  59
  60
  61 #else
  62
  63 typedef struct {
  64         int     d_fd;           /* file descriptor */
  65         int     d_loc;          /* offset in block */
  66         int     d_size;         /* amount of valid data */
  67         char    *d_buf;         /* directory block */
  68 } DIR;                          /* stream data from opendir() */
  69
  70 #endif /* !defined(__XOPEN_OR_POSIX) */
  71
  72 extern DIR              *opendir(const char *);
  73 #if defined(__EXTENSIONS__) || !defined(__XOPEN_OR_POSIX) || \
  74         defined(_ATFILE_SOURCE)
  75 extern DIR              *fdopendir(int);
  76 extern int              dirfd(DIR *);
  77 #endif /* defined(__EXTENSIONS__) || !defined(__XOPEN_OR_POSIX) ... */
  78 #if defined(__EXTENSIONS__) || !defined(__XOPEN_OR_POSIX)
  79 extern int              scandir(const char *, struct dirent *(*[]),
  80                                 int (*)(const struct dirent *),
  81                                 int (*)(const struct dirent **,
  82                                         const struct dirent **));
  83 extern int              alphasort(const struct dirent **,
  84                                         const struct dirent **);
  85 #endif /* defined(__EXTENSIONS__) || !defined(__XOPEN_OR_POSIX) */
  86 extern struct dirent    *readdir(DIR *);
  87 #if defined(__EXTENSIONS__) || !defined(_POSIX_C_SOURCE) || \
  88         defined(_XOPEN_SOURCE)
  89 extern long             telldir(DIR *);
  90 extern void             seekdir(DIR *, long);
  91 #endif /* defined(__EXTENSIONS__) || !defined(_POSIX_C_SOURCE) ... */
  92 extern void             rewinddir(DIR *);
  93 extern int              closedir(DIR *);
  94
  95 #if defined(__EXTENSIONS__) || !defined(_POSIX_C_SOURCE) || \
  96         defined(_XOPEN_SOURCE)
  97 #define rewinddir(dirp) seekdir(dirp, 0L)
  98 #endif
  99
 100 extern int readdir_r(DIR *_RESTRICT_KYWD, struct dirent *_RESTRICT_KYWD,
 101         struct dirent **_RESTRICT_KYWD);
 102
 103 /*
 104  * FIXME source compat: these are aliases to non-64 ones in libc (though the
 105  * arg types are differently named).
 106  */
 107 struct dirent64 *readdir64(DIR *);
 108 int readdir64_r(DIR *_RESTRICT_KYWD, struct dirent64 *_RESTRICT_KYWD,
 109     struct dirent64 **_RESTRICT_KYWD);
 110
 111 #ifdef  __cplusplus
 112 }
 113 #endif
 114
 115 #endif  /* _DIRENT_H */