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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 16:29:51 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 16:29:51 +0000 |
commit | 6e7a315eb67cb6c113cf37e1d66c4f11a51a2b3e (patch) | |
tree | 32451fa3cdd9321fb2591fada9891b2cb70a9cd1 /grub-core/osdep/windows/relpath.c | |
parent | Initial commit. (diff) | |
download | grub2-upstream.tar.xz grub2-upstream.zip |
Adding upstream version 2.06.upstream/2.06upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'grub-core/osdep/windows/relpath.c')
-rw-r--r-- | grub-core/osdep/windows/relpath.c | 96 |
1 files changed, 96 insertions, 0 deletions
diff --git a/grub-core/osdep/windows/relpath.c b/grub-core/osdep/windows/relpath.c new file mode 100644 index 0000000..478e8ef --- /dev/null +++ b/grub-core/osdep/windows/relpath.c @@ -0,0 +1,96 @@ +/* + * 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; +} |