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