mirror of
https://sourceware.org/git/glibc.git
synced 2024-11-23 13:30:06 +00:00
41 lines
1.4 KiB
C
41 lines
1.4 KiB
C
/* 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, see
|
|
<http://www.gnu.org/licenses/>. */
|
|
|
|
#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));
|
|
}
|