126 lines
2.9 KiB
C
126 lines
2.9 KiB
C
/*
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* GRUB -- GRand Unified Bootloader
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* Copyright (C) 1999,2000,2001,2002,2003,2006,2007,2008,2009,2010,2011,2012,2013 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 <config.h>
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#include <sys/stat.h>
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#include <sys/types.h>
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#include <assert.h>
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#include <fcntl.h>
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#include <unistd.h>
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#include <string.h>
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#include <dirent.h>
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#include <errno.h>
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#include <error.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <stdint.h>
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#ifdef HAVE_LIMITS_H
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#include <limits.h>
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#endif
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#include <grub/types.h>
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#include <grub/util/misc.h>
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#include <grub/mm.h>
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#include <grub/misc.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 <sys/wait.h>
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# include <sys/types.h>
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# include <sys/mkdev.h>
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# include <sys/dkio.h>
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char *
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grub_util_part_to_disk (const char *os_dev,
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struct stat *st,
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int *is_part)
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{
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char *colon = grub_strrchr (os_dev, ':');
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if (! S_ISCHR (st->st_mode))
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{
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*is_part = 0;
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return xstrdup (os_dev);
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}
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if (grub_memcmp (os_dev, "/devices", sizeof ("/devices") - 1) == 0
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&& colon)
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{
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char *ret = xmalloc (colon - os_dev + sizeof (":q,raw"));
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if (grub_strcmp (colon, ":q,raw") != 0)
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*is_part = 1;
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grub_memcpy (ret, os_dev, colon - os_dev);
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grub_memcpy (ret + (colon - os_dev), ":q,raw", sizeof (":q,raw"));
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return ret;
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}
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else
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return xstrdup (os_dev);
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}
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enum grub_dev_abstraction_types
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grub_util_get_dev_abstraction_os (const char *os_dev __attribute__((unused)))
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{
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return GRUB_DEV_ABSTRACTION_NONE;
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}
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int
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grub_util_pull_device_os (const char *os_dev __attribute__ ((unused)),
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enum grub_dev_abstraction_types ab __attribute__ ((unused)))
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{
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return 0;
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}
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char *
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grub_util_get_grub_dev_os (const char *os_dev __attribute__ ((unused)))
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{
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return NULL;
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}
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grub_disk_addr_t
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grub_util_find_partition_start_os (const char *dev)
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{
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int fd;
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struct extpart_info pinfo;
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fd = open (dev, O_RDONLY);
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if (fd == -1)
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{
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grub_error (GRUB_ERR_BAD_DEVICE, N_("cannot open `%s': %s"),
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dev, strerror (errno));
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return 0;
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}
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if (ioctl (fd, DKIOCEXTPARTINFO, &pinfo))
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{
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grub_error (GRUB_ERR_BAD_DEVICE,
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"cannot get disk geometry of `%s'", dev);
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close (fd);
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return 0;
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}
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close (fd);
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return pinfo.p_start;
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}
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