freebsd-dev/lib/libdisk/disklabel.c

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/*
* ----------------------------------------------------------------------------
* "THE BEER-WARE LICENSE" (Revision 42):
2002-03-25 13:52:45 +00:00
* <phk@FreeBSD.org> wrote this file. As long as you retain this notice you
* can do whatever you want with this stuff. If we meet some day, and you think
* this stuff is worth it, you can buy me a beer in return. Poul-Henning Kamp
* ----------------------------------------------------------------------------
*/
2001-09-30 21:16:57 +00:00
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <sys/disklabel.h>
#include "libdisk.h"
struct disklabel *
read_disklabel(int fd, daddr_t block, u_long sector_size)
{
struct disklabel *dp;
dp = (struct disklabel *) read_block(fd, block, sector_size);
if (dp->d_magic != DISKMAGIC)
return 0;
if (dp->d_magic2 != DISKMAGIC)
return 0;
if (dkcksum(dp) != 0)
return 0;
return dp;
}