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) && !defined(SQLITE_WINDIRENT_H)
  17 #define SQLITE_WINDIRENT_H
  18
  19 /*
  20 ** We need several data types from the Windows SDK header.
  21 */
  22
  23 #define WIN32_LEAN_AND_MEAN
  24 #include "windows.h"
  25
  26 /*
  27 ** We need several support functions from the SQLite core.
  28 */
  29
  30 #include "sqlite3.h"
  31
  32 /*
  33 ** We need several things from the ANSI and MSVCRT headers.
  34 */
  35
  36 #include <stdio.h>
  37 #include <stdlib.h>
  38 #include <errno.h>
  39 #include <io.h>
  40 #include <limits.h>
  41 #include <sys/types.h>
  42 #include <sys/stat.h>
  43
  44 /*
  45 ** We may need several defines that should have been in "sys/stat.h".
  46 */
  47
  48 #ifndef S_ISREG
  49 #define S_ISREG(mode) (((mode) & S_IFMT) == S_IFREG)
  50 #endif
  51
  52 #ifndef S_ISDIR
  53 #define S_ISDIR(mode) (((mode) & S_IFMT) == S_IFDIR)
  54 #endif
  55
  56 #ifndef S_ISLNK
  57 #define S_ISLNK(mode) (0)
  58 #endif
  59
  60 /*
  61 ** We may need to provide the "mode_t" type.
  62 */
  63
  64 #ifndef MODE_T_DEFINED
  65   #define MODE_T_DEFINED
  66   typedef unsigned short mode_t;
  67 #endif
  68
  69 /*
  70 ** We may need to provide the "ino_t" type.
  71 */
  72
  73 #ifndef INO_T_DEFINED
  74   #define INO_T_DEFINED
  75   typedef unsigned short ino_t;
  76 #endif
  77
  78 /*
  79 ** We need to define "NAME_MAX" if it was not present in "limits.h".
  80 */
  81
  82 #ifndef NAME_MAX
  83 #  ifdef FILENAME_MAX
  84 #    define NAME_MAX (FILENAME_MAX)
  85 #  else
  86 #    define NAME_MAX (260)
  87 #  endif
  88 #endif
  89
  90 /*
  91 ** We need to define "NULL_INTPTR_T" and "BAD_INTPTR_T".
  92 */
  93
  94 #ifndef NULL_INTPTR_T
  95 #  define NULL_INTPTR_T ((intptr_t)(0))
  96 #endif
  97
  98 #ifndef BAD_INTPTR_T
  99 #  define BAD_INTPTR_T ((intptr_t)(-1))
 100 #endif
 101
 102 /*
 103 ** We need to provide the necessary structures and related types.
 104 */
 105
 106 #ifndef DIRENT_DEFINED
 107 #define DIRENT_DEFINED
 108 typedef struct DIRENT DIRENT;
 109 typedef DIRENT *LPDIRENT;
 110 struct DIRENT {
 111   ino_t d_ino;               /* Sequence number, do not use. */
 112   unsigned d_attributes;     /* Win32 file attributes. */
 113   char d_name[NAME_MAX + 1]; /* Name within the directory. */
 114 };
 115 #endif
 116
 117 #ifndef DIR_DEFINED
 118 #define DIR_DEFINED
 119 typedef struct DIR DIR;
 120 typedef DIR *LPDIR;
 121 struct DIR {
 122   intptr_t d_handle; /* Value returned by "_findfirst". */
 123   DIRENT d_first;    /* DIRENT constructed based on "_findfirst". */
 124   DIRENT d_next;     /* DIRENT constructed based on "_findnext". */
 125 };
 126 #endif
 127
 128 /*
 129 ** Provide a macro, for use by the implementation, to determine if a
 130 ** particular directory entry should be skipped over when searching for
 131 ** the next directory entry that should be returned by the readdir() or
 132 ** readdir_r() functions.
 133 */
 134
 135 #ifndef is_filtered
 136 #  define is_filtered(a) ((((a).attrib)&_A_HIDDEN) || (((a).attrib)&_A_SYSTEM))
 137 #endif
 138
 139 /*
 140 ** Provide the function prototype for the POSIX compatiable getenv()
 141 ** function.  This function is not thread-safe.
 142 */
 143
 144 extern const char *windirent_getenv(const char *name);
 145
 146 /*
 147 ** Finally, we can provide the function prototypes for the opendir(),
 148 ** readdir(), readdir_r(), and closedir() POSIX functions.
 149 */
 150
 151 extern LPDIR opendir(const char *dirname);
 152 extern LPDIRENT readdir(LPDIR dirp);
 153 extern INT readdir_r(LPDIR dirp, LPDIRENT entry, LPDIRENT *result);
 154 extern INT closedir(LPDIR dirp);
 155
 156 #endif /* defined(WIN32) && defined(_MSC_VER) */