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[Pingus-CVS] r2474 - trunk/src/win32
|
From: |
David Philippi at BerliOS |
|
Subject: |
[Pingus-CVS] r2474 - trunk/src/win32 |
|
Date: |
Wed, 2 Nov 2005 08:36:25 +0100 |
Author: torangan
Date: 2005-11-02 08:36:05 +0100 (Wed, 02 Nov 2005)
New Revision: 2474
Added:
trunk/src/win32/uce_dirent.h
Log:
required for MSVC support
Added: trunk/src/win32/uce_dirent.h
===================================================================
--- trunk/src/win32/uce_dirent.h 2005-11-01 22:25:28 UTC (rev 2473)
+++ trunk/src/win32/uce_dirent.h 2005-11-02 07:36:05 UTC (rev 2474)
@@ -0,0 +1,683 @@
+/*
+ * uce-dirent.h - operating system independent dirent implementation
+ *
+ * Copyright (C) 1998-2002 Toni Ronkko
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining
+ * a copy of this software and associated documentation files (the
+ * ``Software''), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sublicense, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included
+ * in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED ``AS IS'', WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+ * IN NO EVENT SHALL TONI RONKKO BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ *
+ * May 28 1998, Toni Ronkko <address@hidden>
+ *
+ * $Id: uce-dirent.h,v 1.7 2002/05/13 10:48:35 tr Exp $
+ *
+ * $Log: uce-dirent.h,v $
+ * Revision 1.7 2002/05/13 10:48:35 tr
+ * embedded some source code directly to the header so that no source
+ * modules need to be included in the MS Visual C project using the
+ * interface, removed all the dependencies to other headers of the `uce'
+ * library so that the header can be made public
+ *
+ * Revision 1.6 2002/04/12 16:22:04 tr
+ * Unified Compiling Environment (UCE) replaced `std' library
+ *
+ * Revision 1.5 2001/07/20 16:33:40 tr
+ * moved to `std' library and re-named defines accordingly
+ *
+ * Revision 1.4 2001/07/10 16:47:18 tronkko
+ * revised comments
+ *
+ * Revision 1.3 2001/01/11 13:16:43 tr
+ * using ``uce-machine.h'' for finding out defines such as `FREEBSD'
+ *
+ * Revision 1.2 2000/10/08 16:00:41 tr
+ * copy of FreeBSD man page
+ *
+ * Revision 1.1 2000/07/10 05:53:16 tr
+ * Initial revision
+ *
+ * Revision 1.2 1998/07/19 18:29:14 tr
+ * Added error reporting capabilities and some asserts.
+ *
+ * Revision 1.1 1998/07/04 16:27:51 tr
+ * Initial revision
+ *
+ *
+ * MSVC 1.0 scans automatic dependencies incorrectly when your project
+ * contains this very header. The problem is that MSVC cannot handle
+ * include directives inside #if..#endif block those are never entered.
+ * Since this header ought to compile in many different operating systems,
+ * there had to be several conditional blocks that are compiled only in
+ * operating systems for what they were designed for. MSVC 1.0 cannot
+ * handle inclusion of sys/dir.h in a part that is compiled only in Apollo
+ * operating system. To fix the problem you need to insert DIR.H into
+ * SYSINCL.DAT located in MSVC\BIN directory and restart visual C++.
+ * Consult manuals for more informaton about the problem.
+ *
+ * Since many UNIX systems have dirent.h we assume to have one also.
+ * However, if your UNIX system does not have dirent.h you can download one
+ * for example at: http://ftp.uni-mannheim.de/ftp/GNU/dirent/dirent.tar.gz.
+ * You can also see if you have one of dirent.h, direct.h, dir.h, ndir.h,
+ * sys/dir.h and sys/ndir.h somewhere. Try defining HAVE_DIRENT_H,
+ * HAVE_DIRECT_H, HAVE_DIR_H, HAVE_NDIR_H, HAVE_SYS_DIR_H and
+ * HAVE_SYS_NDIR_H according to the files found.
+ */
+#ifndef DIRENT_H
+#define DIRENT_H
+#define DIRENT_H_INCLUDED
+
+/* find out platform */
+#if defined(MSDOS) /* MS-DOS */
+#elif defined(__MSDOS__) /* Turbo C/Borland */
+# define MSDOS
+#elif defined(__DOS__) /* Watcom */
+# define MSDOS
+#endif
+
+#if defined(WIN32) /* MS-Windows */
+#elif defined(__NT__) /* Watcom */
+# define WIN32
+#elif defined(_WIN32) /* Microsoft */
+# define WIN32
+#elif defined(__WIN32__) /* Borland */
+# define WIN32
+#endif
+
+/*
+ * See what kind of dirent interface we have unless autoconf has already
+ * determinated that.
+ */
+#if !defined(HAVE_DIRENT_H) && !defined(HAVE_DIRECT_H) &&
!defined(HAVE_SYS_DIR_H) && !defined(HAVE_NDIR_H) && !defined(HAVE_SYS_NDIR_H)
&& !defined(HAVE_DIR_H)
+# if defined(_MSC_VER) /* Microsoft C/C++ */
+ /* no dirent.h */
+# elif defined(__BORLANDC__) /* Borland C/C++ */
+# define HAVE_DIRENT_H
+# define VOID_CLOSEDIR
+# elif defined(__TURBOC__) /* Borland Turbo C */
+ /* no dirent.h */
+# elif defined(__WATCOMC__) /* Watcom C/C++ */
+# define HAVE_DIRECT_H
+# elif defined(__apollo) /* Apollo */
+# define HAVE_SYS_DIR_H
+# elif defined(__hpux) /* HP-UX */
+# define HAVE_DIRENT_H
+# elif defined(__alpha) || defined(__alpha__) /* Alpha OSF1 */
+# error "not implemented"
+# elif defined(__sgi) /* Silicon Graphics */
+# define HAVE_DIRENT_H
+# elif defined(sun) || defined(_sun) /* Sun Solaris */
+# define HAVE_DIRENT_H
+# elif defined(__FreeBSD__) /* FreeBSD */
+# define HAVE_DIRENT_H
+# elif defined(__linux__) /* Linux */
+# define HAVE_DIRENT_H
+# elif defined(__GNUC__) /* GNU C/C++ */
+# define HAVE_DIRENT_H
+# else
+# error "not implemented"
+# endif
+#endif
+
+/* include proper interface headers */
+#if defined(HAVE_DIRENT_H)
+# include <dirent.h>
+# ifdef FREEBSD
+# define NAMLEN(dp) ((int)((dp)->d_namlen))
+# else
+# define NAMLEN(dp) ((int)(strlen((dp)->d_name)))
+# endif
+
+#elif defined(HAVE_NDIR_H)
+# include <ndir.h>
+# define NAMLEN(dp) ((int)((dp)->d_namlen))
+
+#elif defined(HAVE_SYS_NDIR_H)
+# include <sys/ndir.h>
+# define NAMLEN(dp) ((int)((dp)->d_namlen))
+
+#elif defined(HAVE_DIRECT_H)
+# include <direct.h>
+# define NAMLEN(dp) ((int)((dp)->d_namlen))
+
+#elif defined(HAVE_DIR_H)
+# include <dir.h>
+# define NAMLEN(dp) ((int)((dp)->d_namlen))
+
+#elif defined(HAVE_SYS_DIR_H)
+# include <sys/types.h>
+# include <sys/dir.h>
+# ifndef dirent
+# define dirent direct
+# endif
+# define NAMLEN(dp) ((int)((dp)->d_namlen))
+
+#elif defined(MSDOS) || defined(WIN32)
+
+ /* figure out type of underlaying directory interface to be used */
+# if defined(WIN32)
+# define DIRENT_WIN32_INTERFACE
+# elif defined(MSDOS)
+# define DIRENT_MSDOS_INTERFACE
+# else
+# error "missing native dirent interface"
+# endif
+
+ /*** WIN32 specifics ***/
+# if defined(DIRENT_WIN32_INTERFACE)
+# include <windows.h>
+# if !defined(DIRENT_MAXNAMLEN)
+# define DIRENT_MAXNAMLEN (MAX_PATH)
+# endif
+
+
+ /*** MS-DOS specifics ***/
+# elif defined(DIRENT_MSDOS_INTERFACE)
+# include <dos.h>
+
+ /* Borland defines file length macros in dir.h */
+# if defined(__BORLANDC__)
+# include <dir.h>
+# if !defined(DIRENT_MAXNAMLEN)
+# define DIRENT_MAXNAMLEN ((MAXFILE)+(MAXEXT))
+# endif
+# if !defined(_find_t)
+# define _find_t find_t
+# endif
+
+ /* Turbo C defines ffblk structure in dir.h */
+# elif defined(__TURBOC__)
+# include <dir.h>
+# if !defined(DIRENT_MAXNAMLEN)
+# define DIRENT_MAXNAMLEN ((MAXFILE)+(MAXEXT))
+# endif
+# define DIRENT_USE_FFBLK
+
+ /* MSVC */
+# elif defined(_MSC_VER)
+# if !defined(DIRENT_MAXNAMLEN)
+# define DIRENT_MAXNAMLEN (12)
+# endif
+
+ /* Watcom */
+# elif defined(__WATCOMC__)
+# if !defined(DIRENT_MAXNAMLEN)
+# if defined(__OS2__) || defined(__NT__)
+# define DIRENT_MAXNAMLEN (255)
+# else
+# define DIRENT_MAXNAMLEN (12)
+# endif
+# endif
+
+# endif
+# endif
+
+ /*** generic MS-DOS and MS-Windows stuff ***/
+# if !defined(NAME_MAX) && defined(DIRENT_MAXNAMLEN)
+# define NAME_MAX DIRENT_MAXNAMLEN
+# endif
+# if NAME_MAX < DIRENT_MAXNAMLEN
+# error "assertion failed: NAME_MAX >= DIRENT_MAXNAMLEN"
+# endif
+
+
+ /*
+ * Substitute for real dirent structure. Note that `d_name' field is a
+ * true character array although we have it copied in the implementation
+ * dependent data. We could save some memory if we had declared `d_name'
+ * as a pointer refering the name within implementation dependent data.
+ * We have not done that since some code may rely on sizeof(d_name) to be
+ * something other than four. Besides, directory entries are typically so
+ * small that it takes virtually no time to copy them from place to place.
+ */
+ typedef struct dirent {
+ char d_name[NAME_MAX + 1];
+
+ /*** Operating system specific part ***/
+# if defined(DIRENT_WIN32_INTERFACE) /*WIN32*/
+ WIN32_FIND_DATA data;
+# elif defined(DIRENT_MSDOS_INTERFACE) /*MSDOS*/
+# if defined(DIRENT_USE_FFBLK)
+ struct ffblk data;
+# else
+ struct _find_t data;
+# endif
+# endif
+ } dirent;
+
+ /* DIR substitute structure containing directory name. The name is
+ * essential for the operation of ``rewinndir'' function. */
+ typedef struct DIR {
+ char *dirname; /* directory being scanned */
+ dirent current; /* current entry */
+ int dirent_filled; /* is current un-processed? */
+
+ /*** Operating system specific part ***/
+# if defined(DIRENT_WIN32_INTERFACE)
+ HANDLE search_handle;
+# elif defined(DIRENT_MSDOS_INTERFACE)
+# endif
+ } DIR;
+
+# ifdef __cplusplus
+extern "C" {
+# endif
+
+/* supply prototypes for dirent functions */
+static DIR *opendir (const char *dirname);
+static struct dirent *readdir (DIR *dirp);
+static int closedir (DIR *dirp);
+static void rewinddir (DIR *dirp);
+
+/*
+ * Implement dirent interface as static functions so that the user does not
+ * need to change his project in any way to use dirent function. With this
+ * it is sufficient to include this very header from source modules using
+ * dirent functions and the functions will be pulled in automatically.
+ */
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <assert.h>
+#include <errno.h>
+
+/* use ffblk instead of _find_t if requested */
+#if defined(DIRENT_USE_FFBLK)
+# define _A_ARCH (FA_ARCH)
+# define _A_HIDDEN (FA_HIDDEN)
+# define _A_NORMAL (0)
+# define _A_RDONLY (FA_RDONLY)
+# define _A_SUBDIR (FA_DIREC)
+# define _A_SYSTEM (FA_SYSTEM)
+# define _A_VOLID (FA_LABEL)
+# define _dos_findnext(dest) findnext(dest)
+# define _dos_findfirst(name,flags,dest) findfirst(name,dest,flags)
+#endif
+
+static int _initdir (DIR *p);
+static const char *_getdirname (const struct dirent *dp);
+static void _setdirname (struct DIR *dirp);
+
+/*
+ * <function name="opendir">
+ * <intro>open directory stream for reading
+ * <syntax>DIR *opendir (const char *dirname);
+ *
+ * <desc>Open named directory stream for read and return pointer to the
+ * internal working area that is used for retrieving individual directory
+ * entries. The internal working area has no fields of your interest.
+ *
+ * <ret>Returns a pointer to the internal working area or NULL in case the
+ * directory stream could not be opened. Global `errno' variable will set
+ * in case of error as follows:
+ *
+ * <table>
+ * [EACESS |Permission denied.
+ * [EMFILE |Too many open files used by the process.
+ * [ENFILE |Too many open files in system.
+ * [ENOENT |Directory does not exist.
+ * [ENOMEM |Insufficient memory.
+ * [ENOTDIR |dirname does not refer to directory. This value is not
+ * reliable on MS-DOS and MS-Windows platforms. Many
+ * implementations return ENOENT even when the name refers to a
+ * file.]
+ * </table>
+ * </function>
+ */
+static DIR *
+opendir(
+ const char *dirname)
+{
+ DIR *dirp;
+ assert (dirname != NULL);
+
+ dirp = (DIR*)malloc (sizeof (struct DIR));
+ if (dirp != NULL) {
+ char *p;
+
+ /* allocate room for directory name */
+ dirp->dirname = (char*) malloc (strlen (dirname) + 1 + strlen ("\\*.*"));
+ if (dirp->dirname == NULL) {
+ /* failed to duplicate directory name. errno set by malloc() */
+ free (dirp);
+ return NULL;
+ }
+ /* Copy directory name while appending directory separator and "*.*".
+ * Directory separator is not appended if the name already ends with
+ * drive or directory separator. Directory separator is assumed to be
+ * '/' or '\' and drive separator is assumed to be ':'. */
+ strcpy (dirp->dirname, dirname);
+ p = strchr (dirp->dirname, '\0');
+ if (dirp->dirname < p &&
+ *(p - 1) != '\\' && *(p - 1) != '/' && *(p - 1) != ':')
+ {
+ strcpy (p++, "\\");
+ }
+# ifdef DIRENT_WIN32_INTERFACE
+ strcpy (p, "*"); /*scan files with and without extension in win32*/
+# else
+ strcpy (p, "*.*"); /*scan files with and without extension in DOS*/
+# endif
+
+ /* open stream */
+ if (_initdir (dirp) == 0) {
+ /* initialization failed */
+ free (dirp->dirname);
+ free (dirp);
+ return NULL;
+ }
+ }
+ return dirp;
+}
+
+
+/*
+ * <function name="readdir">
+ * <intro>read a directory entry
+ * <syntax>struct dirent *readdir (DIR *dirp);
+ *
+ * <desc>Read individual directory entry and return pointer to a structure
+ * containing the name of the entry. Individual directory entries returned
+ * include normal files, sub-directories, pseudo-directories "." and ".."
+ * and also volume labels, hidden files and system files in MS-DOS and
+ * MS-Windows. You might want to use stat(2) function to determinate which
+ * one are you dealing with. Many dirent implementations already contain
+ * equivalent information in dirent structure but you cannot depend on
+ * this.
+ *
+ * The dirent structure contains several system dependent fields that
+ * generally have no interest to you. The only interesting one is char
+ * d_name[] that is also portable across different systems. The d_name
+ * field contains the name of the directory entry without leading path.
+ * While d_name is portable across different systems the actual storage
+ * capacity of d_name varies from system to system and there is no portable
+ * way to find out it at compile time as different systems define the
+ * capacity of d_name with different macros and some systems do not define
+ * capacity at all (besides actual declaration of the field). If you really
+ * need to find out storage capacity of d_name then you might want to try
+ * NAME_MAX macro. The NAME_MAX is defined in POSIX standard althought
+ * there are many MS-DOS and MS-Windows implementations those do not define
+ * it. There are also systems that declare d_name as "char d_name[1]" and
+ * then allocate suitable amount of memory at run-time. Thanks to Alain
+ * Decamps (address@hidden) for pointing it out to me.
+ *
+ * This all leads to the fact that it is difficult to allocate space
+ * for the directory names when the very same program is being compiled on
+ * number of operating systems. Therefore I suggest that you always
+ * allocate space for directory names dynamically.
+ *
+ * <ret>
+ * Returns a pointer to a structure containing name of the directory entry
+ * in `d_name' field or NULL if there was an error. In case of an error the
+ * global `errno' variable will set as follows:
+ *
+ * <table>
+ * [EBADF |dir parameter refers to an invalid directory stream. This value
+ * is not set reliably on all implementations.]
+ * </table>
+ * </function>
+ */
+static struct dirent *
+readdir (DIR *dirp)
+{
+ assert (dirp != NULL);
+ if (dirp == NULL) {
+ errno = EBADF;
+ return NULL;
+ }
+
+#if defined(DIRENT_WIN32_INTERFACE)
+ if (dirp->search_handle == INVALID_HANDLE_VALUE) {
+ /* directory stream was opened/rewound incorrectly or it ended normally */
+ errno = EBADF;
+ return NULL;
+ }
+#endif
+
+ if (dirp->dirent_filled != 0) {
+ /*
+ * Directory entry has already been retrieved and there is no need to
+ * retrieve a new one. Directory entry will be retrieved in advance
+ * when the user calls readdir function for the first time. This is so
+ * because real dirent has separate functions for opening and reading
+ * the stream whereas Win32 and DOS dirents open the stream
+ * automatically when we retrieve the first file. Therefore, we have to
+ * save the first file when opening the stream and later we have to
+ * return the saved entry when the user tries to read the first entry.
+ */
+ dirp->dirent_filled = 0;
+ } else {
+ /* fill in entry and return that */
+#if defined(DIRENT_WIN32_INTERFACE)
+ if (FindNextFile (dirp->search_handle, &dirp->current.data) == FALSE) {
+ /* Last file has been processed or an error occured */
+ FindClose (dirp->search_handle);
+ dirp->search_handle = INVALID_HANDLE_VALUE;
+ errno = ENOENT;
+ return NULL;
+ }
+
+# elif defined(DIRENT_MSDOS_INTERFACE)
+ if (_dos_findnext (&dirp->current.data) != 0) {
+ /* _dos_findnext and findnext will set errno to ENOENT when no
+ * more entries could be retrieved. */
+ return NULL;
+ }
+# endif
+
+ _setdirname (dirp);
+ assert (dirp->dirent_filled == 0);
+ }
+ return &dirp->current;
+}
+
+
+/*
+ * <function name="closedir">
+ * <intro>close directory stream.
+ * <syntax>int closedir (DIR *dirp);
+ *
+ * <desc>Close directory stream opened by the `opendir' function. Close of
+ * directory stream invalidates the DIR structure as well as previously read
+ * dirent entry.
+ *
+ * <ret>The function typically returns 0 on success and -1 on failure but
+ * the function may be declared to return void on same systems. At least
+ * Borland C/C++ and some UNIX implementations use void as a return type.
+ * The dirent wrapper tries to define VOID_CLOSEDIR whenever closedir is
+ * known to return nothing. The very same definition is made by the GNU
+ * autoconf if you happen to use it.
+ *
+ * The global `errno' variable will set to EBADF in case of error.
+ * </function>
+ */
+static int
+closedir (DIR *dirp)
+{
+ int retcode = 0;
+
+ /* make sure that dirp points to legal structure */
+ assert (dirp != NULL);
+ if (dirp == NULL) {
+ errno = EBADF;
+ return -1;
+ }
+
+ /* free directory name and search handles */
+ if (dirp->dirname != NULL) free (dirp->dirname);
+
+#if defined(DIRENT_WIN32_INTERFACE)
+ if (dirp->search_handle != INVALID_HANDLE_VALUE) {
+ if (FindClose (dirp->search_handle) == FALSE) {
+ /* Unknown error */
+ retcode = -1;
+ errno = EBADF;
+ }
+ }
+#endif
+
+ /* clear dirp structure to make sure that it cannot be used anymore*/
+ memset (dirp, 0, sizeof (*dirp));
+# if defined(DIRENT_WIN32_INTERFACE)
+ dirp->search_handle = INVALID_HANDLE_VALUE;
+# endif
+
+ free (dirp);
+ return retcode;
+}
+
+
+/*
+ * <function name="rewinddir">
+ * <intro>rewind directory stream to the beginning
+ * <syntax>void rewinddir (DIR *dirp);
+ *
+ * <desc>Rewind directory stream to the beginning so that the next call of
+ * readdir() returns the very first directory entry again. However, note
+ * that next call of readdir() may not return the same directory entry as it
+ * did in first time. The directory stream may have been affected by newly
+ * created files.
+ *
+ * Almost every dirent implementation ensure that rewinddir will update
+ * the directory stream to reflect any changes made to the directory entries
+ * since the previous ``opendir'' or ``rewinddir'' call. Keep an eye on
+ * this if your program depends on the feature. I know at least one dirent
+ * implementation where you are required to close and re-open the stream to
+ * see the changes.
+ *
+ * <ret>Returns nothing. If something went wrong while rewinding, you will
+ * notice it later when you try to retrieve the first directory entry.
+ */
+static void
+rewinddir (DIR *dirp)
+{
+ /* make sure that dirp is legal */
+ assert (dirp != NULL);
+ if (dirp == NULL) {
+ errno = EBADF;
+ return;
+ }
+ assert (dirp->dirname != NULL);
+
+ /* close previous stream */
+#if defined(DIRENT_WIN32_INTERFACE)
+ if (dirp->search_handle != INVALID_HANDLE_VALUE) {
+ if (FindClose (dirp->search_handle) == FALSE) {
+ /* Unknown error */
+ errno = EBADF;
+ }
+ }
+#endif
+
+ /* re-open previous stream */
+ if (_initdir (dirp) == 0) {
+ /* initialization failed but we cannot deal with error. User will notice
+ * error later when she tries to retrieve first directory enty. */
+ /*EMPTY*/;
+ }
+}
+
+
+/*
+ * Open native directory stream object and retrieve first file.
+ * Be sure to close previous stream before opening new one.
+ */
+static int
+_initdir (DIR *dirp)
+{
+ assert (dirp != NULL);
+ assert (dirp->dirname != NULL);
+ dirp->dirent_filled = 0;
+
+# if defined(DIRENT_WIN32_INTERFACE)
+ /* Open stream and retrieve first file */
+ dirp->search_handle = FindFirstFile (dirp->dirname, &dirp->current.data);
+ if (dirp->search_handle == INVALID_HANDLE_VALUE) {
+ /* something went wrong but we don't know what. GetLastError() could
+ * give us more information about the error, but then we should map
+ * the error code into errno. */
+ errno = ENOENT;
+ return 0;
+ }
+
+# elif defined(DIRENT_MSDOS_INTERFACE)
+ if (_dos_findfirst (dirp->dirname,
+ _A_SUBDIR | _A_RDONLY | _A_ARCH | _A_SYSTEM | _A_HIDDEN,
+ &dirp->current.data) != 0)
+ {
+ /* _dos_findfirst and findfirst will set errno to ENOENT when no
+ * more entries could be retrieved. */
+ return 0;
+ }
+# endif
+
+ /* initialize DIR and it's first entry */
+ _setdirname (dirp);
+ dirp->dirent_filled = 1;
+ return 1;
+}
+
+
+/*
+ * Return implementation dependent name of the current directory entry.
+ */
+static const char *
+_getdirname (const struct dirent *dp)
+{
+#if defined(DIRENT_WIN32_INTERFACE)
+ return dp->data.cFileName;
+
+#elif defined(DIRENT_USE_FFBLK)
+ return dp->data.ff_name;
+
+#else
+ return dp->data.name;
+#endif
+}
+
+
+/*
+ * Copy name of implementation dependent directory entry to the d_name field.
+ */
+static void
+_setdirname (struct DIR *dirp) {
+ /* make sure that d_name is long enough */
+ assert (strlen (_getdirname (&dirp->current)) <= NAME_MAX);
+
+ strncpy (dirp->current.d_name,
+ _getdirname (&dirp->current),
+ NAME_MAX);
+ dirp->current.d_name[NAME_MAX] = '\0'; /*char d_name[NAME_MAX+1]*/
+}
+
+# ifdef __cplusplus
+}
+# endif
+# define NAMLEN(dp) ((int)(strlen((dp)->d_name)))
+
+#else
+# error "missing dirent interface"
+#endif
+
+
+#endif /*DIRENT_H*/
+
+
+
+
+
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