2006-11-08 11:47:44 +00:00
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/*
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2016-01-09 23:42:45 +00:00
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* PROJECT: Registry manipulation library
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2006-11-08 11:47:44 +00:00
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* LICENSE: GPL - See COPYING in the top level directory
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* COPYRIGHT: Copyright 2005 Filip Navara <navaraf@reactos.org>
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* Copyright 2001 - 2005 Eric Kohl
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*/
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#include "cmlib.h"
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/**
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* @name HvpHiveHeaderChecksum
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*
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* Compute checksum of hive header and return it.
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*/
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ULONG CMAPI
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HvpHiveHeaderChecksum(
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2016-01-09 23:42:45 +00:00
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PHBASE_BLOCK HiveHeader)
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2006-11-08 11:47:44 +00:00
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{
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2016-01-09 23:42:45 +00:00
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PULONG Buffer = (PULONG)HiveHeader;
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ULONG Sum = 0;
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ULONG i;
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2006-11-08 11:47:44 +00:00
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2016-01-09 23:42:45 +00:00
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for (i = 0; i < 127; i++)
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Sum ^= Buffer[i];
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if (Sum == (ULONG)-1)
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Sum = (ULONG)-2;
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if (Sum == 0)
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Sum = 1;
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2006-11-08 11:47:44 +00:00
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2016-01-09 23:42:45 +00:00
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return Sum;
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2006-11-08 11:47:44 +00:00
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}
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