SQLite

  char *zPrefix;
  int nPrefix;
  const char *zDir;
  int nDir;
  char aWild[2] = { '\0', '\0' };

#if SQLITE_OS_WIN
  const char *zDrive = windirent_getenv("fstreeDrive");
  if( zDrive==0 ){
    zDrive = windirent_getenv("SystemDrive");
  }
  zRoot = sqlite3_mprintf("%s%c", zDrive, '/');
  nRoot = sqlite3Strlen30(zRoot);
  zPrefix = sqlite3_mprintf("%s", zDrive);
  nPrefix = sqlite3Strlen30(zPrefix);
#else
  zRoot = "/";
  nRoot = 1;
  zPrefix = "";
  nPrefix = 0;
#endif

** This file contains code to implement most of the opendir() family of
** POSIX functions on Win32 using the MSVCRT.
*/

#if defined(_WIN32) && defined(_MSC_VER)

#include "test_windirent.h"

/*
** Implementation of the POSIX getenv() function using the Win32 API.
** This function is not thread-safe.
*/
const char *windirent_getenv(
  const char *name
){
  static char value[32768]; /* Maximum length, per MSDN */
  DWORD dwSize = sizeof(value) / sizeof(char); /* Size in chars */
  DWORD dwRet; /* Value returned by GetEnvironmentVariableA() */

  memset(value, 0, sizeof(value));
  dwRet = GetEnvironmentVariableA(name, value, dwSize);
  if( dwRet==0 || dwRet>dwSize ){
    /*
    ** The function call to GetEnvironmentVariableA() failed -OR-
    ** the buffer is not large enough.  Either way, return NULL.
    */
    return 0;
  }else{
    /*
    ** The function call to GetEnvironmentVariableA() succeeded
    ** -AND- the buffer contains the entire value.
    */
    return value;
  }
}

/*
** Implementation of the POSIX opendir() function using the MSVCRT.
*/
LPDIR opendir(
  const char *dirname
){
  struct _finddata_t data;
  LPDIR dirp = (LPDIR)sqlite3_malloc(sizeof(DIR));
  SIZE_T namesize = sizeof(data.name) / sizeof(data.name[0]);

  if( dirp==NULL ) return NULL;
  memset(dirp, 0, sizeof(DIR));

  /* TODO: Remove this if Unix-style root paths are not used. */
  if( sqlite3_stricmp(dirname, "/")==0 ){
    dirname = windirent_getenv("SystemDrive");
  }

  _snprintf(data.name, namesize, "%s\\*", dirname);
  dirp->d_handle = _findfirst(data.name, &data);

  if( dirp->d_handle==BAD_INTPTR_T ){
    closedir(dirp);

struct DIR {
  intptr_t d_handle; /* Value returned by "_findfirst". */
  DIRENT d_first;    /* DIRENT constructed based on "_findfirst". */
  DIRENT d_next;     /* DIRENT constructed based on "_findnext". */
};

/*
** Provide the function prototype for the POSIX compatiable getenv()
** function.  This function is not thread-safe.
*/

extern const char *windirent_getenv(const char *name);

/*
** Finally, we can provide the function prototypes for the opendir(),
** readdir(), readdir_r(), and closedir() POSIX functions.
*/

extern LPDIR opendir(const char *dirname);
extern LPDIRENT readdir(LPDIR dirp);

      set ::gfunc
    } $cnt
  }
}

#-------------------------------------------------------------------------
#
if {$tcl_platform(platform)=="windows"} {
  set drive [string range [pwd] 0 1]
  set ::env(fstreeDrive) $drive
}
if {$tcl_platform(platform)!="windows" || \
    [regexp -nocase -- {^[A-Z]:} $drive]} {
  reset_db
  register_fs_module db
  do_execsql_test 3.0 {
    SELECT name FROM fsdir WHERE dir = '.' AND name = 'test.db';
    SELECT name FROM fsdir WHERE dir = '.' AND name = '.'
  } {test.db .}

  proc list_root_files {} {
    if {$::tcl_platform(platform) eq "windows"} {
      set res [list]
      foreach name [glob -directory $::env(fstreeDrive)/ -- *] {
        if {[string index [file tail $name] 0] eq "."} continue
        lappend res $name
      }
      return $res
    } else {
      return [string map {/ {}} [glob /*]]
    }

        lappend res $name
      }
      return $res
    } else {
      return [glob -nocomplain $pattern]
    }
  }

  # Read the first 5 entries from the root directory.  Except, ignore
  # files that contain the "$" character in their names as these are
  # special files on some Windows platforms.
  #
  set res [list]
  foreach p [lrange [list_root_files] 0 4] {
    if {$::tcl_platform(platform) eq "windows"} {
      if {![regexp {\$} $p]} {lappend res $p}
    } else {
      lappend res "/$p"
    }
  }
  do_execsql_test 3.1 {
    SELECT path FROM fstree WHERE path NOT GLOB '*$*' LIMIT 5;
  } $res

  # Read all entries in the current directory.
  #
  proc contents {pattern} {
    set res [list]
    foreach f [list_files $pattern] {
      lappend res $f