arch/common/boot/grub2/util/lvm.c

   1 /* lvm.c - LVM support for GRUB utils.  */
   2 /*
   3  *  GRUB  --  GRand Unified Bootloader
   4  *  Copyright (C) 2006,2007  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 /* We only support LVM on Linux.  */
  21 #ifdef __linux__
  22
  23 #include <grub/util/misc.h>
  24
  25 #include <string.h>
  26 #include <sys/stat.h>
  27
  28 int
  29 grub_util_lvm_isvolume (char *name)
  30 {
  31   char *devname;
  32   struct stat st;
  33   int err;
  34
  35   devname = xmalloc (strlen (name) + 13);
  36
  37   strcpy (devname, "/dev/mapper/");
  38   strcpy (devname+12, name);
  39
  40   err = stat (devname, &st);
  41   free (devname);
  42
  43   if (err)
  44     return 0;
  45   else
  46     return 1;
  47 }
  48
  49 #endif /* ! __linux__ */