| /* Definitions of functions to access `dev_t' values. |
| Copyright (C) 2003 Free Software Foundation, Inc. |
| This file is part of the GNU C Library. |
| |
| The GNU C Library is free software; you can redistribute it and/or |
| modify it under the terms of the GNU Lesser General Public |
| License as published by the Free Software Foundation; either |
| version 2.1 of the License, or (at your option) any later version. |
| |
| The GNU C Library is distributed in the hope that it will be useful, |
| but WITHOUT ANY WARRANTY; without even the implied warranty of |
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| Lesser General Public License for more details. |
| |
| You should have received a copy of the GNU Lesser General Public |
| License along with the GNU C Library; if not, write to the Free |
| Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA |
| 02111-1307 USA. */ |
| |
| #include <endian.h> |
| #include <sys/sysmacros.h> |
| |
| unsigned int |
| gnu_dev_major (unsigned long long int dev) |
| { |
| return ((dev >> 8) & 0xfff) | ((unsigned int) (dev >> 32) & ~0xfff); |
| } |
| |
| unsigned int |
| gnu_dev_minor (unsigned long long int dev) |
| { |
| return (dev & 0xff) | ((unsigned int) (dev >> 12) & ~0xff); |
| } |
| |
| unsigned long long int |
| gnu_dev_makedev (unsigned int major, unsigned int minor) |
| { |
| return ((minor & 0xff) | ((major & 0xfff) << 8) |
| | (((unsigned long long int) (minor & ~0xff)) << 12) |
| | (((unsigned long long int) (major & ~0xfff)) << 32)); |
| } |