Line data    Source code

       1             : /* root-dev-ino.c -- get the device and inode numbers for `/'.
       2             :    Copyright (C) 2003, 2005, 2006 Free Software Foundation, Inc.
       3             : 
       4             :    This program is free software: you can redistribute it and/or modify
       5             :    it under the terms of the GNU General Public License as published by
       6             :    the Free Software Foundation, either version 3 of the License, or
       7             :    (at your option) any later version.
       8             : 
       9             :    This program is distributed in the hope that it will be useful,
      10             :    but WITHOUT ANY WARRANTY; without even the implied warranty of
      11             :    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
      12             :    GNU General Public License for more details.
      13             : 
      14             :    You should have received a copy of the GNU General Public License
      15             :    along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
      16             : 
      17             : /* Written by Jim Meyering. */
      18             : 
      19             : #include <config.h>
      20             : 
      21             : #include "root-dev-ino.h"
      22             : 
      23             : #include <stdlib.h>
      24             : 
      25             : /* Call lstat to get the device and inode numbers for `/'.
      26             :    Upon failure, return NULL.  Otherwise, set the members of
      27             :    *ROOT_D_I accordingly and return ROOT_D_I.  */
      28             : struct dev_ino *
      29           9 : get_root_dev_ino (struct dev_ino *root_d_i)
      30             : {
      31             :   struct stat statbuf;
      32           9 :   if (lstat ("/", &statbuf))
      33           0 :     return NULL;
      34           9 :   root_d_i->st_ino = statbuf.st_ino;
      35           9 :   root_d_i->st_dev = statbuf.st_dev;
      36           9 :   return root_d_i;
      37             : }