src/test_windirent.h

   1 /*
   2 ** 2015 November 30
   3 **
   4 ** The author disclaims copyright to this source code.  In place of
   5 ** a legal notice, here is a blessing:
   6 **
   7 **    May you do good and not evil.
   8 **    May you find forgiveness for yourself and forgive others.
   9 **    May you share freely, never taking more than you give.
  10 **
  11 *************************************************************************
  12 ** This file contains declarations for most of the opendir() family of
  13 ** POSIX functions on Win32 using the MSVCRT.
  14 */
  15
  16 #if defined(_WIN32) && defined(_MSC_VER)
  17
  18 /*
  19 ** We need several data types from the Windows SDK header.
  20 */
  21
  22 #define WIN32_LEAN_AND_MEAN
  23 #include "windows.h"
  24
  25 /*
  26 ** We need several support functions from the SQLite core.
  27 */
  28
  29 #include "sqlite3.h"
  30
  31 /*
  32 ** We need several things from the ANSI and MSVCRT headers.
  33 */
  34
  35 #include <stdio.h>
  36 #include <stdlib.h>
  37 #include <errno.h>
  38 #include <io.h>
  39 #include <limits.h>
  40
  41 /*
  42 ** We may need to provide the "ino_t" type.
  43 */
  44
  45 #ifndef INO_T_DEFINED
  46   #define INO_T_DEFINED
  47   typedef unsigned short ino_t;
  48 #endif
  49
  50 /*
  51 ** We need to define "NAME_MAX" if it was not present in "limits.h".
  52 */
  53
  54 #ifndef NAME_MAX
  55 #  ifdef FILENAME_MAX
  56 #    define NAME_MAX (FILENAME_MAX)
  57 #  else
  58 #    define NAME_MAX (260)
  59 #  endif
  60 #endif
  61
  62 /*
  63 ** We need to define "NULL_INTPTR_T" and "BAD_INTPTR_T".
  64 */
  65
  66 #ifndef NULL_INTPTR_T
  67 #  define NULL_INTPTR_T ((intptr_t)(0))
  68 #endif
  69
  70 #ifndef BAD_INTPTR_T
  71 #  define BAD_INTPTR_T ((intptr_t)(-1))
  72 #endif
  73
  74 /*
  75 ** We need to provide the necessary structures and related types.
  76 */
  77
  78 typedef struct DIRENT DIRENT;
  79 typedef struct DIR DIR;
  80 typedef DIRENT *LPDIRENT;
  81 typedef DIR *LPDIR;
  82
  83 struct DIRENT {
  84   ino_t d_ino;               /* Sequence number, do not use. */
  85   unsigned d_attributes;     /* Win32 file attributes. */
  86   char d_name[NAME_MAX + 1]; /* Name within the directory. */
  87 };
  88
  89 struct DIR {
  90   intptr_t d_handle; /* Value returned by "_findfirst". */
  91   DIRENT d_first;    /* DIRENT constructed based on "_findfirst". */
  92   DIRENT d_next;     /* DIRENT constructed based on "_findnext". */
  93 };
  94
  95 /*
  96 ** Provide a macro, for use by the implementation, to determine if a
  97 ** particular directory entry should be skipped over when searching for
  98 ** the next directory entry that should be returned by the readdir() or
  99 ** readdir_r() functions.
 100 */
 101
 102 #ifndef is_filtered
 103 #  define is_filtered(a) ((((a).attrib)&_A_HIDDEN) || (((a).attrib)&_A_SYSTEM))
 104 #endif
 105
 106 /*
 107 ** Provide the function prototype for the POSIX compatiable getenv()
 108 ** function.  This function is not thread-safe.
 109 */
 110
 111 extern const char *windirent_getenv(const char *name);
 112
 113 /*
 114 ** Finally, we can provide the function prototypes for the opendir(),
 115 ** readdir(), readdir_r(), and closedir() POSIX functions.
 116 */
 117
 118 extern LPDIR opendir(const char *dirname);
 119 extern LPDIRENT readdir(LPDIR dirp);
 120 extern INT readdir_r(LPDIR dirp, LPDIRENT entry, LPDIRENT *result);
 121 extern INT closedir(LPDIR dirp);
 122
 123 #endif /* defined(WIN32) && defined(_MSC_VER) */