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rewinddir.c revision 1.1.1.1 
      1 /* Restart reading the entries of a directory from the beginning.
      2    Copyright (C) 2011-2020 Free Software Foundation, Inc.
      3 
      4    This program is free software: you can redistribute it and/or modify
      5    it under the terms of the GNU General Public License as published by
      6    the Free Software Foundation; either version 3 of the License, or
      7    (at your option) any later version.
      8 
      9    This program is distributed in the hope that it will be useful,
     10    but WITHOUT ANY WARRANTY; without even the implied warranty of
     11    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
     12    GNU General Public License for more details.
     13 
     14    You should have received a copy of the GNU General Public License
     15    along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
     16 
     17 #include <config.h>
     18 
     19 /* Specification.  */
     20 #include <dirent.h>
     21 
     22 #include <errno.h>
     23 
     24 #include "dirent-private.h"
     25 
     26 /* Don't assume that UNICODE is not defined.  */
     27 #undef FindFirstFile
     28 #define FindFirstFile FindFirstFileA
     29 
     30 void
     31 rewinddir (DIR *dirp)
     32 {
     33   /* Like in closedir().  */
     34   if (dirp->current != INVALID_HANDLE_VALUE)
     35     FindClose (dirp->current);
     36 
     37   /* Like in opendir().  */
     38   dirp->status = -1;
     39   dirp->current = FindFirstFile (dirp->dir_name_mask, &dirp->entry);
     40   if (dirp->current == INVALID_HANDLE_VALUE)
     41     {
     42       switch (GetLastError ())
     43         {
     44         case ERROR_FILE_NOT_FOUND:
     45           dirp->status = -2;
     46           break;
     47         default:
     48           /* Save the error code for the next readdir() call.  */
     49           dirp->status = ENOENT;
     50           break;
     51         }
     52     }
     53 }
     54