| /* |
| * GRUB -- GRand Unified Bootloader |
| * Copyright (C) 1999,2000,2001,2002,2003,2006,2007,2008,2009,2010,2011,2012,2013 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 <config.h> |
| |
| #include <grub/types.h> |
| |
| #include <grub/util/misc.h> |
| |
| #include <grub/mm.h> |
| #include <grub/misc.h> |
| #include <grub/emu/misc.h> |
| #include <grub/emu/hostdisk.h> |
| #include <grub/emu/getroot.h> |
| #include <grub/charset.h> |
| #include <grub/util/windows.h> |
| #include <windows.h> |
| #include <winioctl.h> |
| |
| static size_t |
| tclen (const TCHAR *s) |
| { |
| const TCHAR *s0 = s; |
| while (*s) |
| s++; |
| return s - s0; |
| } |
| |
| char * |
| grub_make_system_path_relative_to_its_root (const char *path) |
| { |
| TCHAR *dirwindows, *mntpointwindows; |
| TCHAR *ptr; |
| size_t offset, flen; |
| TCHAR *ret; |
| char *cret; |
| |
| dirwindows = grub_util_get_windows_path (path); |
| if (!dirwindows) |
| return xstrdup (path); |
| |
| mntpointwindows = grub_get_mount_point (dirwindows); |
| |
| if (!mntpointwindows) |
| { |
| offset = 0; |
| if (dirwindows[0] && dirwindows[1] == ':') |
| offset = 2; |
| } |
| offset = tclen (mntpointwindows); |
| free (mntpointwindows); |
| flen = tclen (dirwindows); |
| if (offset > flen) |
| { |
| offset = 0; |
| if (dirwindows[0] && dirwindows[1] == ':') |
| offset = 2; |
| } |
| ret = xcalloc (flen - offset + 2, sizeof (ret[0])); |
| if (dirwindows[offset] != '\\' |
| && dirwindows[offset] != '/' |
| && dirwindows[offset]) |
| { |
| ret[0] = '\\'; |
| memcpy (ret + 1, dirwindows + offset, (flen - offset + 1) * sizeof (ret[0])); |
| } |
| else |
| memcpy (ret, dirwindows + offset, (flen - offset + 1) * sizeof (ret[0])); |
| |
| free (dirwindows); |
| |
| for (ptr = ret; *ptr; ptr++) |
| if (*ptr == '\\') |
| *ptr = '/'; |
| |
| cret = grub_util_tchar_to_utf8 (ret); |
| free (ret); |
| |
| return cret; |
| } |