arch/common/boot/grub2/normal/misc.c

   1 /* misc.c - miscellaneous functions */
   2 /*
   3  *  GRUB  --  GRand Unified Bootloader
   4  *  Copyright (C) 2005,2007  Free Software Foundation, Inc.
   5  *
   6  *  GRUB is free software: you can redistribute it and/or modify
   7  *  it under the terms of the GNU General Public License as published by
   8  *  the Free Software Foundation, either version 3 of the License, or
   9  *  (at your option) any later version.
  10  *
  11  *  GRUB is distributed in the hope that it will be useful,
  12  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  *  GNU General Public License for more details.
  15  *
  16  *  You should have received a copy of the GNU General Public License
  17  *  along with GRUB.  If not, see <http://www.gnu.org/licenses/>.
  18  */
  19
  20 #include <grub/normal.h>
  21 #include <grub/disk.h>
  22 #include <grub/fs.h>
  23 #include <grub/err.h>
  24 #include <grub/misc.h>
  25 #include <grub/mm.h>
  26
  27 /* Print the information on the device NAME.  */
  28 grub_err_t
  29 grub_normal_print_device_info (const char *name)
  30 {
  31   grub_device_t dev;
  32   char *p;
  33
  34   p = grub_strchr (name, ',');
  35   if (p)
  36     grub_printf ("\tPartition %s: ", name);
  37   else
  38     grub_printf ("Device %s: ", name);
  39
  40   dev = grub_device_open (name);
  41   if (! dev)
  42     grub_printf ("Filesystem cannot be accessed");
  43   else if (dev->disk)
  44     {
  45       grub_fs_t fs;
  46
  47       fs = grub_fs_probe (dev);
  48       /* Ignore all errors.  */
  49       grub_errno = 0;
  50
  51       if (fs)
  52         {
  53           grub_printf ("Filesystem type %s", fs->name);
  54           if (fs->label)
  55             {
  56               char *label;
  57               (fs->label) (dev, &label);
  58               if (grub_errno == GRUB_ERR_NONE)
  59                 {
  60                   if (label && grub_strlen (label))
  61                     grub_printf (", Label %s", label);
  62                   grub_free (label);
  63                 }
  64               grub_errno = GRUB_ERR_NONE;
  65             }
  66           if (fs->uuid)
  67             {
  68               char *uuid;
  69               (fs->uuid) (dev, &uuid);
  70               if (grub_errno == GRUB_ERR_NONE)
  71                 {
  72                   if (uuid && grub_strlen (uuid))
  73                     grub_printf (", UUID %s", uuid);
  74                   grub_free (uuid);
  75                 }
  76               grub_errno = GRUB_ERR_NONE;
  77             }
  78         }
  79       else if (! dev->disk->has_partitions || dev->disk->partition)
  80         grub_printf ("Unknown filesystem");
  81       else
  82         grub_printf ("Partition table");
  83
  84       grub_device_close (dev);
  85     }
  86
  87   grub_printf ("\n");
  88   return grub_errno;
  89 }