79 lines
2.3 KiB
C
79 lines
2.3 KiB
C
/* nthibr.c - tests whether an MS Windows system partition is hibernated */
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/*
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* GRUB -- GRand Unified Bootloader
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* Copyright (C) 2013 Peter Lustig
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* Copyright (C) 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 <grub/types.h>
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#include <grub/mm.h>
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#include <grub/file.h>
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#include <grub/misc.h>
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#include <grub/dl.h>
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#include <grub/command.h>
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#include <grub/err.h>
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#include <grub/i18n.h>
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GRUB_MOD_LICENSE ("GPLv3+");
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static grub_err_t
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grub_cmd_nthibr (grub_command_t cmd __attribute__ ((unused)),
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int argc, char **args)
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{
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grub_uint8_t hibr_file_magic[4];
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grub_file_t hibr_file = 0;
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if (argc != 1)
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return grub_error (GRUB_ERR_BAD_ARGUMENT, N_("one argument expected"));
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hibr_file = grub_file_open (args[0]);
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if (!hibr_file)
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return grub_errno;
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/* Try to read magic number of 'hiberfil.sys' */
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if (grub_file_read (hibr_file, hibr_file_magic,
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sizeof (hibr_file_magic))
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!= (grub_ssize_t) sizeof (hibr_file_magic))
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{
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if (!grub_errno)
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grub_error (GRUB_ERR_TEST_FAILURE, "false");
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goto exit;
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}
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if (!(grub_memcmp ("hibr", hibr_file_magic, sizeof (hibr_file_magic)) == 0
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|| grub_memcmp ("HIBR", hibr_file_magic, sizeof (hibr_file_magic)) == 0))
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grub_error (GRUB_ERR_TEST_FAILURE, "false");
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exit:
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grub_file_close (hibr_file);
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return grub_errno;
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}
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static grub_command_t cmd;
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GRUB_MOD_INIT (check_nt_hiberfil)
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{
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cmd = grub_register_command ("check_nt_hiberfil", grub_cmd_nthibr,
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N_("FILE"),
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N_("Test whether a hiberfil.sys is "
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"in hibernated state."));
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}
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GRUB_MOD_FINI (check_nt_hiberfil)
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{
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grub_unregister_command (cmd);
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}
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