| /* |
| * 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 <tronkko@messi.uku.fi> |
| * |
| * $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(__MINGW32__) /* MinGW */ |
| /* 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 (Alain.Decamps@advalvas.be) 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*/ |