reactos/lib/cmlib/hivesum.c
Amine Khaldi 527f2f9057 [SHELL/EXPERIMENTS]
* Create a branch for some evul shell experiments.

svn path=/branches/shell-experiments/; revision=61927
2014-02-02 19:37:27 +00:00

33 lines
620 B
C

/*
* PROJECT: registry manipulation library
* LICENSE: GPL - See COPYING in the top level directory
* COPYRIGHT: Copyright 2005 Filip Navara <navaraf@reactos.org>
* Copyright 2001 - 2005 Eric Kohl
*/
#include "cmlib.h"
/**
* @name HvpHiveHeaderChecksum
*
* Compute checksum of hive header and return it.
*/
ULONG CMAPI
HvpHiveHeaderChecksum(
PHBASE_BLOCK HiveHeader)
{
PULONG Buffer = (PULONG)HiveHeader;
ULONG Sum = 0;
ULONG i;
for (i = 0; i < 127; i++)
Sum ^= Buffer[i];
if (Sum == (ULONG)-1)
Sum = (ULONG)-2;
if (Sum == 0)
Sum = 1;
return Sum;
}