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-rw-r--r--src/common/dirent.c199
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diff --git a/src/common/dirent.c b/src/common/dirent.c
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-/*****************************************************************************
- * dirent.h - dirent API for Microsoft Visual Studio
- *
- * Copyright (C) 2006 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.
- *
- * Dec 15, 2009, John Cunningham
- * Added rewinddir member function
- *
- * Jan 18, 2008, Toni Ronkko
- * Using FindFirstFileA and WIN32_FIND_DATAA to avoid converting string
- * between multi-byte and unicode representations.  This makes the
- * code simpler and also allows the code to be compiled under MingW.  Thanks
- * to Azriel Fasten for the suggestion.
- *
- * Mar 4, 2007, Toni Ronkko
- * Bug fix: due to the strncpy_s() function this file only compiled in
- * Visual Studio 2005.  Using the new string functions only when the
- * compiler version allows.
- *
- * Nov  2, 2006, Toni Ronkko
- * Major update: removed support for Watcom C, MS-DOS and Turbo C to
- * simplify the file, updated the code to compile cleanly on Visual
- * Studio 2005 with both unicode and multi-byte character strings,
- * removed rewinddir() as it had a bug.
- *
- * Aug 20, 2006, Toni Ronkko
- * Removed all remarks about MSVC 1.0, which is antiqued now.  Simplified
- * comments by removing SGML tags.
- *
- * May 14 2002, Toni Ronkko
- * Embedded the function definitions directly to the header so that no
- * source modules need to be included in the Visual Studio project.  Removed
- * all the dependencies to other projects so that this very header can be
- * used independently.
- *
- * May 28 1998, Toni Ronkko
- * First version.
- *****************************************************************************/
-
-#include "dirent.h"
-
-/* Use the new safe string functions introduced in Visual Studio 2005 */
-#if defined(_MSC_VER) && _MSC_VER >= 1400
-# define STRNCPY(dest,src,size) strncpy_s((dest),(size),(src),_TRUNCATE)
-#else
-# define STRNCPY(dest,src,size) strncpy((dest),(src),(size))
-#endif
-
-
-/*****************************************************************************
- * Open directory stream DIRNAME for read and return a pointer to the
- * internal working area that is used to retrieve individual directory
- * entries.
- */
-DIR *opendir(const char *dirname)
-{
-   DIR *dirp;
-   assert (dirname != NULL);
-   assert (strlen (dirname) < MAX_PATH);
-
-   /* construct new DIR structure */
-   dirp = (DIR*) malloc (sizeof (struct DIR));
-   if (dirp != NULL) {
-      char *p;
-
-      /* take directory name... */
-      STRNCPY (dirp->patt, dirname, sizeof(dirp->patt));
-      dirp->patt[MAX_PATH] = '\0';
-
-      /* ... and append search pattern to it */
-      p = strchr (dirp->patt, '\0');
-      if (dirp->patt < p  &&  *(p-1) != '\\'  &&  *(p-1) != ':') {
-         *p++ = '\\';
-      }
-      *p++ = '*';
-      *p = '\0';
-
-      /* open stream and retrieve first file */
-      dirp->search_handle = FindFirstFileA (dirp->patt, &dirp->current.data);
-      if (dirp->search_handle == INVALID_HANDLE_VALUE) {
-         /* invalid search pattern? */
-         free (dirp);
-         return NULL;
-      }
-
-      /* there is an un-processed directory entry in memory now */
-      dirp->cached = 1;
-   }
-
-   return dirp;
-}
-
-
-/*****************************************************************************
- * Read a directory entry, and return a pointer to a dirent structure
- * containing the name of the entry in d_name field.  Individual directory
- * entries returned by this very function include regular files,
- * sub-directories, pseudo-directories "." and "..", but also volume labels,
- * hidden files and system files may be returned.
- */
-struct dirent *readdir(DIR *dirp)
-{
-   assert (dirp != NULL);
-
-   if (dirp->search_handle == INVALID_HANDLE_VALUE) {
-      /* directory stream was opened/rewound incorrectly or ended normally */
-      return NULL;
-   }
-
-   /* get next directory entry */
-   if (dirp->cached != 0) {
-      /* a valid directory entry already in memory */
-      dirp->cached = 0;
-   } else {
-      /* read next directory entry from disk */
-      if (FindNextFileA (dirp->search_handle, &dirp->current.data) == FALSE) {
-         /* the very last file has been processed or an error occured */
-         FindClose (dirp->search_handle);
-         dirp->search_handle = INVALID_HANDLE_VALUE;
-         return NULL;
-      }
-   }
-
-   /* copy as a multibyte character string */
-   STRNCPY ( dirp->current.d_name,
-             dirp->current.data.cFileName,
-             sizeof(dirp->current.d_name) );
-   dirp->current.d_name[MAX_PATH] = '\0';
-
-   return &dirp->current;
-}
-
-
-/*****************************************************************************
- * Close directory stream opened by opendir() function.  Close of the
- * directory stream invalidates the DIR structure as well as any previously
- * read directory entry.
- */
-int closedir(DIR *dirp)
-{
-   assert (dirp != NULL);
-
-   /* release search handle */
-   if (dirp->search_handle != INVALID_HANDLE_VALUE) {
-      FindClose (dirp->search_handle);
-      dirp->search_handle = INVALID_HANDLE_VALUE;
-   }
-
-   /* release directory handle */
-   free (dirp);
-   return 0;
-}
-
-
-/*****************************************************************************
- * Resets the position of the directory stream to which dirp refers to the
- * beginning of the directory. It also causes the directory stream to refer
- * to the current state of the corresponding directory, as a call to opendir()
- * would have done. If dirp does not refer to a directory stream, the effect
- * is undefined.
- */
-void rewinddir(DIR* dirp)
-{
-   /* release search handle */
-   if (dirp->search_handle != INVALID_HANDLE_VALUE) {
-      FindClose (dirp->search_handle);
-      dirp->search_handle = INVALID_HANDLE_VALUE;
-   }
-
-   /* open new search handle and retrieve first file */
-   dirp->search_handle = FindFirstFileA (dirp->patt, &dirp->current.data);
-   if (dirp->search_handle == INVALID_HANDLE_VALUE) {
-      /* invalid search pattern? */
-      free (dirp);
-      return;
-   }
-
-   /* there is an un-processed directory entry in memory now */
-   dirp->cached = 1;
-}