Classes | Macros | Typedefs | Functions
dirent_windows.h File Reference
#include <stdio.h>
#include <stdarg.h>
#include <windef.h>
#include <winbase.h>
#include <wchar.h>
#include <string.h>
#include <stdlib.h>
#include <malloc.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <errno.h>
Include dependency graph for dirent_windows.h:

Go to the source code of this file.

Classes

struct  _wdirent
 
struct  _WDIR
 
struct  dirent
 
struct  DIR
 

Macros

#define _DIRENT_HAVE_D_TYPE
 
#define _DIRENT_HAVE_D_NAMLEN
 
#define FILE_ATTRIBUTE_DEVICE   0x40
 
#define S_IFMT   _S_IFMT /* File type mask */
 
#define S_IFDIR   _S_IFDIR /* Directory */
 
#define S_IFCHR   _S_IFCHR /* Character device */
 
#define S_IFFIFO   _S_IFFIFO /* Pipe */
 
#define S_IFREG   _S_IFREG /* Regular file */
 
#define S_IREAD   _S_IREAD /* Read permission */
 
#define S_IWRITE   _S_IWRITE /* Write permission */
 
#define S_IEXEC   _S_IEXEC /* Execute permission */
 
#define S_IFIFO   _S_IFIFO /* Pipe */
 
#define S_IFBLK   0 /* Block device */
 
#define S_IFLNK   0 /* Link */
 
#define S_IFSOCK   0 /* Socket */
 
#define PATH_MAX   MAX_PATH
 
#define FILENAME_MAX   MAX_PATH
 
#define NAME_MAX   FILENAME_MAX
 
#define DT_UNKNOWN   0
 
#define DT_REG   S_IFREG
 
#define DT_DIR   S_IFDIR
 
#define DT_FIFO   S_IFIFO
 
#define DT_SOCK   S_IFSOCK
 
#define DT_CHR   S_IFCHR
 
#define DT_BLK   S_IFBLK
 
#define DT_LNK   S_IFLNK
 
#define IFTODT(mode)   ((mode) & S_IFMT)
 
#define DTTOIF(type)   (type)
 
#define S_ISFIFO(mode)   (((mode) & S_IFMT) == S_IFIFO)
 
#define S_ISDIR(mode)   (((mode) & S_IFMT) == S_IFDIR)
 
#define S_ISREG(mode)   (((mode) & S_IFMT) == S_IFREG)
 
#define S_ISLNK(mode)   (((mode) & S_IFMT) == S_IFLNK)
 
#define S_ISSOCK(mode)   (((mode) & S_IFMT) == S_IFSOCK)
 
#define S_ISCHR(mode)   (((mode) & S_IFMT) == S_IFCHR)
 
#define S_ISBLK(mode)   (((mode) & S_IFMT) == S_IFBLK)
 
#define _D_EXACT_NAMLEN(p)   ((p)->d_namlen)
 
#define _D_ALLOC_NAMLEN(p)   (PATH_MAX)
 
#define wdirent   _wdirent
 
#define WDIR   _WDIR
 
#define wopendir   _wopendir
 
#define wreaddir   _wreaddir
 
#define wclosedir   _wclosedir
 
#define wrewinddir   _wrewinddir
 

Typedefs

typedef struct _wdirent _wdirent
 
typedef struct _WDIR _WDIR
 
typedef struct dirent dirent
 
typedef struct DIR DIR
 

Functions

static _WDIR_wopendir (const wchar_t *dirname)
 
static struct _wdirent_wreaddir (_WDIR *dirp)
 
static int _wclosedir (_WDIR *dirp)
 
static void _wrewinddir (_WDIR *dirp)
 
static DIRopendir (const char *dirname)
 
static struct direntreaddir (DIR *dirp)
 
static int closedir (DIR *dirp)
 
static void rewinddir (DIR *dirp)
 
static WIN32_FIND_DATAW * dirent_first (_WDIR *dirp)
 
static WIN32_FIND_DATAW * dirent_next (_WDIR *dirp)
 
static int dirent_mbstowcs_s (size_t *pReturnValue, wchar_t *wcstr, size_t sizeInWords, const char *mbstr, size_t count)
 
static int dirent_wcstombs_s (size_t *pReturnValue, char *mbstr, size_t sizeInBytes, const wchar_t *wcstr, size_t count)
 
static void dirent_set_errno (int error)
 

Macro Definition Documentation

◆ _D_ALLOC_NAMLEN

#define _D_ALLOC_NAMLEN (   p)    (PATH_MAX)

Definition at line 158 of file dirent_windows.h.

◆ _D_EXACT_NAMLEN

#define _D_EXACT_NAMLEN (   p)    ((p)->d_namlen)

Definition at line 155 of file dirent_windows.h.

◆ _DIRENT_HAVE_D_NAMLEN

#define _DIRENT_HAVE_D_NAMLEN

Definition at line 58 of file dirent_windows.h.

◆ _DIRENT_HAVE_D_TYPE

#define _DIRENT_HAVE_D_TYPE

Definition at line 55 of file dirent_windows.h.

◆ DT_BLK

#define DT_BLK   S_IFBLK

Definition at line 133 of file dirent_windows.h.

◆ DT_CHR

#define DT_CHR   S_IFCHR

Definition at line 132 of file dirent_windows.h.

◆ DT_DIR

#define DT_DIR   S_IFDIR

Definition at line 129 of file dirent_windows.h.

◆ DT_FIFO

#define DT_FIFO   S_IFIFO

Definition at line 130 of file dirent_windows.h.

◆ DT_LNK

#define DT_LNK   S_IFLNK

Definition at line 134 of file dirent_windows.h.

◆ DT_REG

#define DT_REG   S_IFREG

Definition at line 128 of file dirent_windows.h.

◆ DT_SOCK

#define DT_SOCK   S_IFSOCK

Definition at line 131 of file dirent_windows.h.

◆ DT_UNKNOWN

#define DT_UNKNOWN   0

Definition at line 127 of file dirent_windows.h.

◆ DTTOIF

#define DTTOIF (   type)    (type)

Definition at line 138 of file dirent_windows.h.

◆ FILE_ATTRIBUTE_DEVICE

#define FILE_ATTRIBUTE_DEVICE   0x40

Definition at line 62 of file dirent_windows.h.

◆ FILENAME_MAX

#define FILENAME_MAX   MAX_PATH

Definition at line 120 of file dirent_windows.h.

◆ IFTODT

#define IFTODT (   mode)    ((mode) & S_IFMT)

Definition at line 137 of file dirent_windows.h.

◆ NAME_MAX

#define NAME_MAX   FILENAME_MAX

Definition at line 123 of file dirent_windows.h.

◆ PATH_MAX

#define PATH_MAX   MAX_PATH

Definition at line 117 of file dirent_windows.h.

◆ S_IEXEC

#define S_IEXEC   _S_IEXEC /* Execute permission */

Definition at line 88 of file dirent_windows.h.

◆ S_IFBLK

#define S_IFBLK   0 /* Block device */

Definition at line 94 of file dirent_windows.h.

◆ S_IFCHR

#define S_IFCHR   _S_IFCHR /* Character device */

Definition at line 73 of file dirent_windows.h.

◆ S_IFDIR

#define S_IFDIR   _S_IFDIR /* Directory */

Definition at line 70 of file dirent_windows.h.

◆ S_IFFIFO

#define S_IFFIFO   _S_IFFIFO /* Pipe */

Definition at line 76 of file dirent_windows.h.

◆ S_IFIFO

#define S_IFIFO   _S_IFIFO /* Pipe */

Definition at line 91 of file dirent_windows.h.

◆ S_IFLNK

#define S_IFLNK   0 /* Link */

Definition at line 97 of file dirent_windows.h.

◆ S_IFMT

#define S_IFMT   _S_IFMT /* File type mask */

Definition at line 67 of file dirent_windows.h.

◆ S_IFREG

#define S_IFREG   _S_IFREG /* Regular file */

Definition at line 79 of file dirent_windows.h.

◆ S_IFSOCK

#define S_IFSOCK   0 /* Socket */

Definition at line 100 of file dirent_windows.h.

◆ S_IREAD

#define S_IREAD   _S_IREAD /* Read permission */

Definition at line 82 of file dirent_windows.h.

◆ S_ISBLK

#define S_ISBLK (   mode)    (((mode) & S_IFMT) == S_IFBLK)

Definition at line 152 of file dirent_windows.h.

◆ S_ISCHR

#define S_ISCHR (   mode)    (((mode) & S_IFMT) == S_IFCHR)

Definition at line 151 of file dirent_windows.h.

◆ S_ISDIR

#define S_ISDIR (   mode)    (((mode) & S_IFMT) == S_IFDIR)

Definition at line 147 of file dirent_windows.h.

◆ S_ISFIFO

#define S_ISFIFO (   mode)    (((mode) & S_IFMT) == S_IFIFO)

Definition at line 146 of file dirent_windows.h.

◆ S_ISLNK

#define S_ISLNK (   mode)    (((mode) & S_IFMT) == S_IFLNK)

Definition at line 149 of file dirent_windows.h.

◆ S_ISREG

#define S_ISREG (   mode)    (((mode) & S_IFMT) == S_IFREG)

Definition at line 148 of file dirent_windows.h.

◆ S_ISSOCK

#define S_ISSOCK (   mode)    (((mode) & S_IFMT) == S_IFSOCK)

Definition at line 150 of file dirent_windows.h.

◆ S_IWRITE

#define S_IWRITE   _S_IWRITE /* Write permission */

Definition at line 85 of file dirent_windows.h.

◆ wclosedir

#define wclosedir   _wclosedir

Definition at line 196 of file dirent_windows.h.

◆ WDIR

#define WDIR   _WDIR

Definition at line 193 of file dirent_windows.h.

◆ wdirent

#define wdirent   _wdirent

Definition at line 192 of file dirent_windows.h.

◆ wopendir

#define wopendir   _wopendir

Definition at line 194 of file dirent_windows.h.

◆ wreaddir

#define wreaddir   _wreaddir

Definition at line 195 of file dirent_windows.h.

◆ wrewinddir

#define wrewinddir   _wrewinddir

Definition at line 197 of file dirent_windows.h.

Typedef Documentation

◆ _WDIR

typedef struct _WDIR _WDIR

Definition at line 183 of file dirent_windows.h.

◆ _wdirent

typedef struct _wdirent _wdirent

Definition at line 174 of file dirent_windows.h.

◆ DIR

typedef struct DIR DIR

Definition at line 214 of file dirent_windows.h.

◆ dirent

typedef struct dirent dirent

Definition at line 208 of file dirent_windows.h.

Function Documentation

◆ _wclosedir()

static int _wclosedir ( _WDIR dirp)
static

Definition at line 407 of file dirent_windows.h.

409{
410 int ok;
411 if (dirp) {
412
413 /* Release search handle */
414 if (dirp->handle != INVALID_HANDLE_VALUE) {
415 FindClose (dirp->handle);
416 dirp->handle = INVALID_HANDLE_VALUE;
417 }
418
419 /* Release search pattern */
420 if (dirp->patt) {
421 free (dirp->patt);
422 dirp->patt = NULL;
423 }
424
425 /* Release directory structure */
426 free (dirp);
427 ok = /*success*/0;
428
429 } else {
430 /* Invalid directory stream */
431 dirent_set_errno (EBADF);
432 ok = /*failure*/-1;
433 }
434 return ok;
435}
static void dirent_set_errno(int error)
HANDLE handle
wchar_t * patt

References dirent_set_errno(), _WDIR::handle, and _WDIR::patt.

Referenced by _wopendir(), and closedir().

◆ _wopendir()

static _WDIR * _wopendir ( const wchar_t *  dirname)
static

Definition at line 248 of file dirent_windows.h.

250{
251 _WDIR *dirp = NULL;
252 int error;
253
254 /* Must have directory name */
255 if (dirname == NULL || dirname[0] == '\0') {
256 dirent_set_errno (ENOENT);
257 return NULL;
258 }
259
260 /* Allocate new _WDIR structure */
261 dirp = (_WDIR*) malloc (sizeof (struct _WDIR));
262 if (dirp != NULL) {
263 DWORD n;
264
265 /* Reset _WDIR structure */
266 dirp->handle = INVALID_HANDLE_VALUE;
267 dirp->patt = NULL;
268 dirp->cached = 0;
269
270 /* Compute the length of full path plus zero terminator */
271 n = GetFullPathNameW (dirname, 0, NULL, NULL);
272
273 /* Allocate room for absolute directory name and search pattern */
274 dirp->patt = (wchar_t*) malloc (sizeof (wchar_t) * n + 16);
275 if (dirp->patt) {
276
277 /*
278 * Convert relative directory name to an absolute one. This
279 * allows rewinddir() to function correctly even when current
280 * working directory is changed between opendir() and rewinddir().
281 */
282 n = GetFullPathNameW (dirname, n, dirp->patt, NULL);
283 if (n > 0) {
284 wchar_t *p;
285
286 /* Append search pattern \* to the directory name */
287 p = dirp->patt + n;
288 if (dirp->patt < p) {
289 switch (p[-1]) {
290 case '\\':
291 case '/':
292 case ':':
293 /* Directory ends in path separator, e.g. c:\temp\ */
294 /*NOP*/;
295 break;
296
297 default:
298 /* Directory name doesn't end in path separator */
299 *p++ = '\\';
300 }
301 }
302 *p++ = '*';
303 *p = '\0';
304
305 /* Open directory stream and retrieve the first entry */
306 if (dirent_first (dirp)) {
307 /* Directory stream opened successfully */
308 error = 0;
309 } else {
310 /* Cannot retrieve first entry */
311 error = 1;
312 dirent_set_errno (ENOENT);
313 }
314
315 } else {
316 /* Cannot retrieve full path name */
317 dirent_set_errno (ENOENT);
318 error = 1;
319 }
320
321 } else {
322 /* Cannot allocate memory for search pattern */
323 error = 1;
324 }
325
326 } else {
327 /* Cannot allocate _WDIR structure */
328 error = 1;
329 }
330
331 /* Clean up in case of error */
332 if (error && dirp) {
333 _wclosedir (dirp);
334 dirp = NULL;
335 }
336
337 return dirp;
338}
static WIN32_FIND_DATAW * dirent_first(_WDIR *dirp)
static int _wclosedir(_WDIR *dirp)

References _wclosedir(), _WDIR::cached, dirent_first(), dirent_set_errno(), _WDIR::handle, and _WDIR::patt.

Referenced by opendir().

◆ _wreaddir()

static struct _wdirent * _wreaddir ( _WDIR dirp)
static

Definition at line 347 of file dirent_windows.h.

349{
350 WIN32_FIND_DATAW *datap;
351 struct _wdirent *entp;
352
353 /* Read next directory entry */
354 datap = dirent_next (dirp);
355 if (datap) {
356 size_t n;
357 DWORD attr;
358
359 /* Pointer to directory entry to return */
360 entp = &dirp->ent;
361
362 /*
363 * Copy file name as wide-character string. If the file name is too
364 * long to fit in to the destination buffer, then truncate file name
365 * to PATH_MAX characters and zero-terminate the buffer.
366 */
367 n = 0;
368 while (n + 1 < PATH_MAX && datap->cFileName[n] != 0) {
369 entp->d_name[n] = datap->cFileName[n];
370 n++;
371 }
372 dirp->ent.d_name[n] = 0;
373
374 /* Length of file name excluding zero terminator */
375 entp->d_namlen = n;
376
377 /* File type */
378 attr = datap->dwFileAttributes;
379 if ((attr & FILE_ATTRIBUTE_DEVICE) != 0) {
380 entp->d_type = DT_CHR;
381 } else if ((attr & FILE_ATTRIBUTE_DIRECTORY) != 0) {
382 entp->d_type = DT_DIR;
383 } else {
384 entp->d_type = DT_REG;
385 }
386
387 /* Reset dummy fields */
388 entp->d_ino = 0;
389 entp->d_reclen = sizeof (struct _wdirent);
390
391 } else {
392
393 /* Last directory entry read */
394 entp = NULL;
395
396 }
397
398 return entp;
399}
#define DT_DIR
#define DT_CHR
static WIN32_FIND_DATAW * dirent_next(_WDIR *dirp)
#define DT_REG
#define FILE_ATTRIBUTE_DEVICE
#define PATH_MAX
struct _wdirent ent
size_t d_namlen
wchar_t d_name[PATH_MAX]
unsigned short d_reclen

References _wdirent::d_ino, _wdirent::d_name, _wdirent::d_namlen, _wdirent::d_reclen, _wdirent::d_type, dirent_next(), DT_CHR, DT_DIR, DT_REG, _WDIR::ent, FILE_ATTRIBUTE_DEVICE, and PATH_MAX.

◆ _wrewinddir()

static void _wrewinddir ( _WDIR dirp)
static

Definition at line 442 of file dirent_windows.h.

444{
445 if (dirp) {
446 /* Release existing search handle */
447 if (dirp->handle != INVALID_HANDLE_VALUE) {
448 FindClose (dirp->handle);
449 }
450
451 /* Open new search handle */
452 dirent_first (dirp);
453 }
454}

References dirent_first(), and _WDIR::handle.

Referenced by rewinddir().

◆ closedir()

static int closedir ( DIR dirp)
static

Definition at line 675 of file dirent_windows.h.

677{
678 int ok;
679 if (dirp) {
680
681 /* Close wide-character directory stream */
682 ok = _wclosedir (dirp->wdirp);
683 dirp->wdirp = NULL;
684
685 /* Release multi-byte character version */
686 free (dirp);
687
688 } else {
689
690 /* Invalid directory stream */
691 dirent_set_errno (EBADF);
692 ok = /*failure*/-1;
693
694 }
695 return ok;
696}
struct _WDIR * wdirp

References _wclosedir(), dirent_set_errno(), and DIR::wdirp.

◆ dirent_first()

static WIN32_FIND_DATAW * dirent_first ( _WDIR dirp)
static

Definition at line 458 of file dirent_windows.h.

460{
461 WIN32_FIND_DATAW *datap;
462
463 /* Open directory and retrieve the first entry */
464 dirp->handle = FindFirstFileW (dirp->patt, &dirp->data);
465 if (dirp->handle != INVALID_HANDLE_VALUE) {
466
467 /* a directory entry is now waiting in memory */
468 datap = &dirp->data;
469 dirp->cached = 1;
470
471 } else {
472
473 /* Failed to re-open directory: no directory entry in memory */
474 dirp->cached = 0;
475 datap = NULL;
476
477 }
478 return datap;
479}
WIN32_FIND_DATAW data

References _WDIR::cached, _WDIR::data, _WDIR::handle, and _WDIR::patt.

Referenced by _wopendir(), and _wrewinddir().

◆ dirent_mbstowcs_s()

static int dirent_mbstowcs_s ( size_t *  pReturnValue,
wchar_t *  wcstr,
size_t  sizeInWords,
const char *  mbstr,
size_t  count 
)
static

Definition at line 711 of file dirent_windows.h.

717{
718 int error;
719
720#if defined(_MSC_VER) && _MSC_VER >= 1400
721
722 /* Microsoft Visual Studio 2005 or later */
723 error = mbstowcs_s (pReturnValue, wcstr, sizeInWords, mbstr, count);
724
725#else
726
727 /* Older Visual Studio or non-Microsoft compiler */
728 size_t n;
729
730 /* Convert to wide-character string (or count characters) */
731 n = mbstowcs (wcstr, mbstr, sizeInWords);
732 if (!wcstr || n < count) {
733
734 /* Zero-terminate output buffer */
735 if (wcstr && sizeInWords) {
736 if (n >= sizeInWords) {
737 n = sizeInWords - 1;
738 }
739 wcstr[n] = 0;
740 }
741
742 /* Length of resuting multi-byte string WITH zero terminator */
743 if (pReturnValue) {
744 *pReturnValue = n + 1;
745 }
746
747 /* Success */
748 error = 0;
749
750 } else {
751
752 /* Could not convert string */
753 error = 1;
754
755 }
756
757#endif
758
759 return error;
760}

Referenced by opendir().

◆ dirent_next()

static WIN32_FIND_DATAW * dirent_next ( _WDIR dirp)
static

Definition at line 483 of file dirent_windows.h.

485{
486 WIN32_FIND_DATAW *p;
487
488 /* Get next directory entry */
489 if (dirp->cached != 0) {
490
491 /* A valid directory entry already in memory */
492 p = &dirp->data;
493 dirp->cached = 0;
494
495 } else if (dirp->handle != INVALID_HANDLE_VALUE) {
496
497 /* Get the next directory entry from stream */
498 if (FindNextFileW (dirp->handle, &dirp->data) != FALSE) {
499 /* Got a file */
500 p = &dirp->data;
501 } else {
502 /* The very last entry has been processed or an error occured */
503 FindClose (dirp->handle);
504 dirp->handle = INVALID_HANDLE_VALUE;
505 p = NULL;
506 }
507
508 } else {
509
510 /* End of directory stream reached */
511 p = NULL;
512
513 }
514
515 return p;
516}

References _WDIR::cached, _WDIR::data, and _WDIR::handle.

Referenced by _wreaddir(), and readdir().

◆ dirent_set_errno()

static void dirent_set_errno ( int  error)
static

Definition at line 817 of file dirent_windows.h.

819{
820#if defined(_MSC_VER) && _MSC_VER >= 1400
821
822 /* Microsoft Visual Studio 2005 and later */
823 _set_errno (error);
824
825#else
826
827 /* Non-Microsoft compiler or older Microsoft compiler */
828 errno = error;
829
830#endif
831}

Referenced by _wclosedir(), _wopendir(), closedir(), and opendir().

◆ dirent_wcstombs_s()

static int dirent_wcstombs_s ( size_t *  pReturnValue,
char *  mbstr,
size_t  sizeInBytes,
const wchar_t *  wcstr,
size_t  count 
)
static

Definition at line 764 of file dirent_windows.h.

770{
771 int error;
772
773#if defined(_MSC_VER) && _MSC_VER >= 1400
774
775 /* Microsoft Visual Studio 2005 or later */
776 error = wcstombs_s (pReturnValue, mbstr, sizeInBytes, wcstr, count);
777
778#else
779
780 /* Older Visual Studio or non-Microsoft compiler */
781 size_t n;
782
783 /* Convert to multi-byte string (or count the number of bytes needed) */
784 n = wcstombs (mbstr, wcstr, sizeInBytes);
785 if (!mbstr || n < count) {
786
787 /* Zero-terminate output buffer */
788 if (mbstr && sizeInBytes) {
789 if (n >= sizeInBytes) {
790 n = sizeInBytes - 1;
791 }
792 mbstr[n] = '\0';
793 }
794
795 /* Lenght of resulting multi-bytes string WITH zero-terminator */
796 if (pReturnValue) {
797 *pReturnValue = n + 1;
798 }
799
800 /* Success */
801 error = 0;
802
803 } else {
804
805 /* Cannot convert string */
806 error = 1;
807
808 }
809
810#endif
811
812 return error;
813}

Referenced by readdir().

◆ opendir()

static DIR * opendir ( const char *  dirname)
static

Definition at line 522 of file dirent_windows.h.

524{
525 struct DIR *dirp;
526 int error;
527
528 /* Must have directory name */
529 if (dirname == NULL || dirname[0] == '\0') {
530 dirent_set_errno (ENOENT);
531 return NULL;
532 }
533
534 /* Allocate memory for DIR structure */
535 dirp = (DIR*) malloc (sizeof (struct DIR));
536 if (dirp) {
537 wchar_t wname[PATH_MAX];
538 size_t n;
539
540 /* Convert directory name to wide-character string */
541 error = dirent_mbstowcs_s (&n, wname, PATH_MAX, dirname, PATH_MAX);
542 if (!error) {
543
544 /* Open directory stream using wide-character name */
545 dirp->wdirp = _wopendir (wname);
546 if (dirp->wdirp) {
547 /* Directory stream opened */
548 error = 0;
549 } else {
550 /* Failed to open directory stream */
551 error = 1;
552 }
553
554 } else {
555 /*
556 * Cannot convert file name to wide-character string. This
557 * occurs if the string contains invalid multi-byte sequences or
558 * the output buffer is too small to contain the resulting
559 * string.
560 */
561 error = 1;
562 }
563
564 } else {
565 /* Cannot allocate DIR structure */
566 error = 1;
567 }
568
569 /* Clean up in case of error */
570 if (error && dirp) {
571 free (dirp);
572 dirp = NULL;
573 }
574
575 return dirp;
576}
static _WDIR * _wopendir(const wchar_t *dirname)
static int dirent_mbstowcs_s(size_t *pReturnValue, wchar_t *wcstr, size_t sizeInWords, const char *mbstr, size_t count)

References _wopendir(), dirent_mbstowcs_s(), dirent_set_errno(), PATH_MAX, and DIR::wdirp.

◆ readdir()

static struct dirent * readdir ( DIR dirp)
static

Definition at line 592 of file dirent_windows.h.

594{
595 WIN32_FIND_DATAW *datap;
596 struct dirent *entp;
597
598 /* Read next directory entry */
599 datap = dirent_next (dirp->wdirp);
600 if (datap) {
601 size_t n;
602 int error;
603
604 /* Attempt to convert file name to multi-byte string */
605 error = dirent_wcstombs_s(
606 &n, dirp->ent.d_name, PATH_MAX, datap->cFileName, PATH_MAX);
607
608 /*
609 * If the file name cannot be represented by a multi-byte string,
610 * then attempt to use old 8+3 file name. This allows traditional
611 * Unix-code to access some file names despite of unicode
612 * characters, although file names may seem unfamiliar to the user.
613 *
614 * Be ware that the code below cannot come up with a short file
615 * name unless the file system provides one. At least
616 * VirtualBox shared folders fail to do this.
617 */
618 if (error && datap->cAlternateFileName[0] != '\0') {
619 error = dirent_wcstombs_s(
620 &n, dirp->ent.d_name, PATH_MAX,
621 datap->cAlternateFileName, PATH_MAX);
622 }
623
624 if (!error) {
625 DWORD attr;
626
627 /* Initialize directory entry for return */
628 entp = &dirp->ent;
629
630 /* Length of file name excluding zero terminator */
631 entp->d_namlen = n - 1;
632
633 /* File attributes */
634 attr = datap->dwFileAttributes;
635 if ((attr & FILE_ATTRIBUTE_DEVICE) != 0) {
636 entp->d_type = DT_CHR;
637 } else if ((attr & FILE_ATTRIBUTE_DIRECTORY) != 0) {
638 entp->d_type = DT_DIR;
639 } else {
640 entp->d_type = DT_REG;
641 }
642
643 /* Reset dummy fields */
644 entp->d_ino = 0;
645 entp->d_reclen = sizeof (struct dirent);
646
647 } else {
648 /*
649 * Cannot convert file name to multi-byte string so construct
650 * an errornous directory entry and return that. Note that
651 * we cannot return NULL as that would stop the processing
652 * of directory entries completely.
653 */
654 entp = &dirp->ent;
655 entp->d_name[0] = '?';
656 entp->d_name[1] = '\0';
657 entp->d_namlen = 1;
658 entp->d_type = DT_UNKNOWN;
659 entp->d_ino = 0;
660 entp->d_reclen = 0;
661 }
662
663 } else {
664 /* No more directory entries */
665 entp = NULL;
666 }
667
668 return entp;
669}
#define DT_UNKNOWN
static int dirent_wcstombs_s(size_t *pReturnValue, char *mbstr, size_t sizeInBytes, const wchar_t *wcstr, size_t count)
struct dirent ent
size_t d_namlen
char d_name[PATH_MAX]
unsigned short d_reclen

References dirent::d_ino, dirent::d_name, dirent::d_namlen, dirent::d_reclen, dirent::d_type, dirent_next(), dirent_wcstombs_s(), DT_CHR, DT_DIR, DT_REG, DT_UNKNOWN, DIR::ent, FILE_ATTRIBUTE_DEVICE, PATH_MAX, and DIR::wdirp.

◆ rewinddir()

static void rewinddir ( DIR dirp)
static

Definition at line 702 of file dirent_windows.h.

704{
705 /* Rewind wide-character string directory stream */
706 _wrewinddir (dirp->wdirp);
707}
static void _wrewinddir(_WDIR *dirp)

References _wrewinddir(), and DIR::wdirp.


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