326 lines
6.8 KiB
C
326 lines
6.8 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 <grub/util/windows.h>
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#include <grub/charset.h>
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#include <windows.h>
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#include <winioctl.h>
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#if SIZEOF_TCHAR == 1
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LPTSTR
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grub_util_utf8_to_tchar (const char *in)
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{
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return xstrdup (in);
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}
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char *
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grub_util_tchar_to_utf8 (LPCTSTR in)
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{
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return xstrdup (in);
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}
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#elif SIZEOF_TCHAR == 2
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LPTSTR
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grub_util_utf8_to_tchar (const char *in)
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{
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LPTSTR ret;
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size_t ssz = strlen (in);
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size_t tsz = 2 * (GRUB_MAX_UTF16_PER_UTF8 * ssz + 1);
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ret = xmalloc (tsz);
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tsz = grub_utf8_to_utf16 (ret, tsz,
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(const grub_uint8_t *) in, ssz, NULL);
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ret[tsz] = 0;
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return ret;
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}
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char *
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grub_util_tchar_to_utf8 (LPCTSTR in)
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{
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size_t ssz;
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for (ssz = 0; in[ssz]; ssz++);
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size_t tsz = GRUB_MAX_UTF8_PER_UTF16 * ssz + 1;
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grub_uint8_t *ret = xmalloc (tsz);
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*grub_utf16_to_utf8 (ret, in, ssz) = '\0';
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return (char *) ret;
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}
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#else
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#error "Unsupported TCHAR size"
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#endif
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#ifdef __CYGWIN__
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LPTSTR
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grub_util_get_windows_path (const char *path)
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{
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LPTSTR winpath;
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winpath = xmalloc (sizeof (winpath[0]) * PATH_MAX);
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if (cygwin_conv_path ((sizeof (winpath[0]) == 1 ? CCP_POSIX_TO_WIN_A
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: CCP_POSIX_TO_WIN_W) | CCP_ABSOLUTE, path, winpath,
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sizeof (winpath[0]) * PATH_MAX))
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grub_util_error ("%s", _("cygwin_conv_path() failed"));
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return winpath;
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}
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#else
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LPTSTR
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grub_util_get_windows_path (const char *path)
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{
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LPTSTR fpa;
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LPTSTR tpath;
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tpath = grub_util_utf8_to_tchar (path);
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fpa = xmalloc (PATH_MAX * sizeof (fpa[0]));
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if (!_wfullpath (fpa, tpath, PATH_MAX))
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{
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free (fpa);
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return tpath;
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}
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free (tpath);
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return fpa;
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}
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#endif
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grub_uint64_t
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grub_util_get_fd_size (grub_util_fd_t hd, const char *name_in,
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unsigned *log_secsize)
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{
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grub_int64_t size = -1LL;
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int log_sector_size = 9;
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LPTSTR name = grub_util_get_windows_path (name_in);
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if (log_secsize)
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*log_secsize = log_sector_size;
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if (((name[0] == '/') || (name[0] == '\\')) &&
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((name[1] == '/') || (name[1] == '\\')) &&
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((name[2] == '.') || (name[2] == '?')) &&
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((name[3] == '/') || (name[3] == '\\')))
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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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return size;
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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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grub_err_t
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grub_util_fd_seek (grub_util_fd_t fd, const char *name, grub_uint64_t off)
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{
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LARGE_INTEGER offset;
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offset.QuadPart = off;
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if (!SetFilePointerEx (fd, offset, NULL, FILE_BEGIN))
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return grub_error (GRUB_ERR_BAD_DEVICE, N_("cannot seek `%s': %s"),
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name, strerror (errno));
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return 0;
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}
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grub_util_fd_t
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grub_util_fd_open (const char *os_dev, int flags)
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{
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DWORD flg = 0;
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LPTSTR dev = grub_util_get_windows_path (os_dev);
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grub_util_fd_t ret;
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if (flags & O_WRONLY)
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flg |= GENERIC_WRITE;
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if (flags & O_RDONLY)
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flg |= GENERIC_READ;
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flg = GENERIC_READ;
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ret = CreateFile (dev, flg, FILE_SHARE_READ | FILE_SHARE_WRITE,
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0, OPEN_EXISTING, 0, 0);
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free (dev);
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grub_util_info ("handle = %p", ret);
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return ret;
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}
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ssize_t
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grub_util_fd_read (grub_util_fd_t fd, char *buf, size_t len)
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{
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DWORD real_read;
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if (!ReadFile(fd, buf, len, &real_read, NULL))
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{
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grub_util_info ("read err %x", (int) GetLastError ());
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return -1;
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}
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grub_util_info ("successful read");
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return real_read;
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}
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ssize_t
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grub_util_fd_write (grub_util_fd_t fd, const char *buf, size_t len)
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{
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DWORD real_read;
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if (!WriteFile(fd, buf, len, &real_read, NULL))
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{
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grub_util_info ("write err %x", (int) GetLastError ());
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return -1;
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}
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grub_util_info ("successful write");
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return real_read;
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}
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void
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grub_util_fd_sync (grub_util_fd_t fd)
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{
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FlushFileBuffers (fd);
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}
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void
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grub_util_fd_close (grub_util_fd_t fd)
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{
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CloseHandle (fd);
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}
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const char *
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grub_util_fd_strerror (void)
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{
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DWORD err;
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static TCHAR tbuf[1024];
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err = GetLastError ();
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FormatMessage (FORMAT_MESSAGE_FROM_SYSTEM |
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FORMAT_MESSAGE_IGNORE_INSERTS,
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NULL, err,
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MAKELANGID (LANG_NEUTRAL, SUBLANG_DEFAULT),
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tbuf, ARRAY_SIZE (tbuf), NULL);
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#if SIZEOF_TCHAR == 1
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return (char *) tbuf;
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#elif SIZEOF_TCHAR == 2
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static grub_uint8_t buf[ARRAY_SIZE (tbuf) * GRUB_MAX_UTF8_PER_UTF16 + 1];
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*grub_utf16_to_utf8 (buf, tbuf, ARRAY_SIZE (tbuf)) = '\0';
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return (char *) buf;
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#else
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#error "Unsupported TCHAR size"
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#endif
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}
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char *
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canonicalize_file_name (const char *path)
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{
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char *ret;
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ret = xmalloc (PATH_MAX);
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#ifndef __CYGWIN__
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if (!_fullpath (ret, path, PATH_MAX))
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return NULL;
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#else
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if (!realpath (path, ret))
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return NULL;
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#endif
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return ret;
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}
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#ifdef __MINGW32__
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FILE *
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grub_util_fopen (const char *path, const char *mode)
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{
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LPTSTR tpath;
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FILE *ret;
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tpath = grub_util_get_windows_path (path);
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#if SIZEOF_TCHAR == 1
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ret = fopen (tpath, tmode);
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#else
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LPTSTR tmode;
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tmode = grub_util_utf8_to_tchar (mode);
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ret = _wfopen (tpath, tmode);
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free (tmode);
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#endif
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free (tpath);
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return ret;
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}
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int fsync (int fno __attribute__ ((unused)))
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{
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return 0;
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}
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#else
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FILE *
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grub_util_fopen (const char *path, const char *mode)
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{
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return fopen (path, mode);
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}
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#endif
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