* grub-core/kern/emu/hostdisk.c: Disentagle into a series of OS-specific

files rather than one file with loads of #if's.
	* util/getroot.c: Likewise.

grub-core/kern/emu/hostdisk_mingw.c

@@ -0,0 +1,120 @@
+/*
+ *  GRUB  --  GRand Unified Bootloader
+ *  Copyright (C) 1999,2000,2001,2002,2003,2004,2006,2007,2008,2009,2010,2011,2012,2013  Free Software Foundation, Inc.
+ *
+ *  GRUB is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  GRUB is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with GRUB.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <config-util.h>
+
+#include <grub/disk.h>
+#include <grub/partition.h>
+#include <grub/msdos_partition.h>
+#include <grub/types.h>
+#include <grub/err.h>
+#include <grub/emu/misc.h>
+#include <grub/emu/hostdisk.h>
+#include <grub/emu/getroot.h>
+#include <grub/misc.h>
+#include <grub/i18n.h>
+#include <grub/list.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <ctype.h>
+#include <assert.h>
+#include <unistd.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <errno.h>
+#include <limits.h>
+
+#include <windows.h>
+#include <winioctl.h>
+#include "dirname.h"
+
+grub_int64_t
+grub_util_get_fd_size_os (int fd __attribute__ ((unused)),
+			  const char *name_in,
+			  unsigned *log_secsize)
+{
+  HANDLE hd;
+  grub_int64_t size = -1LL;
+  int log_sector_size = 9;
+  char *name = xstrdup (name_in);
+
+  if (log_secsize)
+    *log_secsize = log_sector_size;
+
+  strip_trailing_slashes(name);
+  hd = CreateFile (name, GENERIC_READ, FILE_SHARE_READ | FILE_SHARE_WRITE,
+                   0, OPEN_EXISTING, 0, 0);
+
+  if (hd == INVALID_HANDLE_VALUE)
+    {
+      free (name);
+      return size;
+    }
+
+  if (((name[0] == '/') || (name[0] == '\\')) &&
+      ((name[1] == '/') || (name[1] == '\\')) &&
+      (name[2] == '.') &&
+      ((name[3] == '/') || (name[3] == '\\')) &&
+      (! strncasecmp (name + 4, "PHYSICALDRIVE", 13)))
+    {
+      DWORD nr;
+      DISK_GEOMETRY g;
+
+      if (! DeviceIoControl (hd, IOCTL_DISK_GET_DRIVE_GEOMETRY,
+                             0, 0, &g, sizeof (g), &nr, 0))
+        goto fail;
+
+      size = g.Cylinders.QuadPart;
+      size *= g.TracksPerCylinder * g.SectorsPerTrack * g.BytesPerSector;
+
+      for (log_sector_size = 0;
+	   (1 << log_sector_size) < g.BytesPerSector;
+	   log_sector_size++);
+    }
+  else
+    {
+      ULARGE_INTEGER s;
+
+      s.LowPart = GetFileSize (hd, &s.HighPart);
+      size = s.QuadPart;
+    }
+
+ fail:
+
+  if (log_secsize)
+    *log_secsize = log_sector_size;
+
+  free (name);
+
+  CloseHandle (hd);
+
+  return size;
+}
+
+void
+grub_hostdisk_configure_device_driver (int fd __attribute__ ((unused)))
+{
+}
+
+void
+grub_hostdisk_flush_initial_buffer (const char *os_dev __attribute__ ((unused)))
+{
+}