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 #ifndef WIN32_LEAN_AND_MEAN
  24 #define WIN32_LEAN_AND_MEAN
  25 #endif
  26
  27 #include "windows.h"
  28
  29 /*
  30 ** We need several support functions from the SQLite core.
  31 */
  32
  33 #include "sqlite3.h"
  34
  35 /*
  36 ** We need several things from the ANSI and MSVCRT headers.
  37 */
  38
  39 #include <stdio.h>
  40 #include <stdlib.h>
  41 #include <errno.h>
  42 #include <io.h>
  43 #include <limits.h>
  44 #include <sys/types.h>
  45 #include <sys/stat.h>
  46
  47 /*
  48 ** We may need several defines that should have been in "sys/stat.h".
  49 */
  50
  51 #ifndef S_ISREG
  52 #define S_ISREG(mode) (((mode) & S_IFMT) == S_IFREG)
  53 #endif
  54
  55 #ifndef S_ISDIR
  56 #define S_ISDIR(mode) (((mode) & S_IFMT) == S_IFDIR)
  57 #endif
  58
  59 #ifndef S_ISLNK
  60 #define S_ISLNK(mode) (0)
  61 #endif
  62
  63 /*
  64 ** We may need to provide the "mode_t" type.
  65 */
  66
  67 #ifndef MODE_T_DEFINED
  68   #define MODE_T_DEFINED
  69   typedef unsigned short mode_t;
  70 #endif
  71
  72 /*
  73 ** We may need to provide the "ino_t" type.
  74 */
  75
  76 #ifndef INO_T_DEFINED
  77   #define INO_T_DEFINED
  78   typedef unsigned short ino_t;
  79 #endif
  80
  81 /*
  82 ** We need to define "NAME_MAX" if it was not present in "limits.h".
  83 */
  84
  85 #ifndef NAME_MAX
  86 #  ifdef FILENAME_MAX
  87 #    define NAME_MAX (FILENAME_MAX)
  88 #  else
  89 #    define NAME_MAX (260)
  90 #  endif
  91 #endif
  92
  93 /*
  94 ** We need to define "NULL_INTPTR_T" and "BAD_INTPTR_T".
  95 */
  96
  97 #ifndef NULL_INTPTR_T
  98 #  define NULL_INTPTR_T ((intptr_t)(0))
  99 #endif
 100
 101 #ifndef BAD_INTPTR_T
 102 #  define BAD_INTPTR_T ((intptr_t)(-1))
 103 #endif
 104
 105 /*
 106 ** We need to provide the necessary structures and related types.
 107 */
 108
 109 #ifndef DIRENT_DEFINED
 110 #define DIRENT_DEFINED
 111 typedef struct DIRENT DIRENT;
 112 typedef DIRENT *LPDIRENT;
 113 struct DIRENT {
 114   ino_t d_ino;               /* Sequence number, do not use. */
 115   unsigned d_attributes;     /* Win32 file attributes. */
 116   char d_name[NAME_MAX + 1]; /* Name within the directory. */
 117 };
 118 #endif
 119
 120 #ifndef DIR_DEFINED
 121 #define DIR_DEFINED
 122 typedef struct DIR DIR;
 123 typedef DIR *LPDIR;
 124 struct DIR {
 125   intptr_t d_handle; /* Value returned by "_findfirst". */
 126   DIRENT d_first;    /* DIRENT constructed based on "_findfirst". */
 127   DIRENT d_next;     /* DIRENT constructed based on "_findnext". */
 128 };
 129 #endif
 130
 131 /*
 132 ** Provide a macro, for use by the implementation, to determine if a
 133 ** particular directory entry should be skipped over when searching for
 134 ** the next directory entry that should be returned by the readdir() or
 135 ** readdir_r() functions.
 136 */
 137
 138 #ifndef is_filtered
 139 #  define is_filtered(a) ((((a).attrib)&_A_HIDDEN) || (((a).attrib)&_A_SYSTEM))
 140 #endif
 141
 142 /*
 143 ** Provide the function prototype for the POSIX compatiable getenv()
 144 ** function.  This function is not thread-safe.
 145 */
 146
 147 extern const char *windirent_getenv(const char *name);
 148
 149 /*
 150 ** Finally, we can provide the function prototypes for the opendir(),
 151 ** readdir(), readdir_r(), and closedir() POSIX functions.
 152 */
 153
 154 extern LPDIR opendir(const char *dirname);
 155 extern LPDIRENT readdir(LPDIR dirp);
 156 extern INT readdir_r(LPDIR dirp, LPDIRENT entry, LPDIRENT *result);
 157 extern INT closedir(LPDIR dirp);
 158
 159 #endif /* defined(WIN32) && defined(_MSC_VER) */