private static int RemoveEntriesWithProperty(int historyLength, byte[] buffer, OofHistory.PropId propId, byte[] propValue, long hashCode)
{
int num = 6;
int currentEntryStart = 6;
int result = 6;
uint num2 = BitConverter.ToUInt32(buffer, 2);
if (10000U < num2)
{
num2 = 10000U;
}
uint num3 = num2;
for (uint num4 = 0U; num4 < num2; num4 += 1U)
{
if (num >= historyLength)
{
OofHistory.HandleInsufficientDataCorruption(hashCode, "Unable to get property count of entry " + num4);
return(result);
}
byte propertyCount = buffer[num++];
bool flag;
if (OofHistory.MatchAnyPropertiesInEntry(buffer, propId, propValue, propertyCount, historyLength, num4, hashCode, ref num, out flag))
{
num3 -= 1U;
}
else
{
if (flag)
{
return(result);
}
OofHistory.HandleNonMatchingProperty(buffer, num, currentEntryStart, ref result);
}
currentEntryStart = num;
}
if (num3 < num2)
{
ExBitConverter.Write(num3, buffer, 2);
}
return(result);
}
private static bool MatchAnyPropertiesInEntry(byte[] buffer, OofHistory.PropId propId, byte[] propValue, byte propertyCount, int historyLength, uint currentEntry, long hashCode, ref int index, out bool isCorrupt)
{
isCorrupt = false;
bool flag = false;
for (byte b = 0; b < propertyCount; b += 1)
{
if (index >= historyLength)
{
OofHistory.HandleInsufficientDataCorruption(hashCode, string.Concat(new object[]
{
"Unable to get property id of property ",
b,
" entry ",
currentEntry
}));
isCorrupt = true;
return(false);
}
byte b2 = buffer[index++];
if (index + 2 >= historyLength)
{
OofHistory.HandleInsufficientDataCorruption(hashCode, string.Concat(new object[]
{
"Unable to get property size of property ",
b,
" entry ",
currentEntry,
" property id ",
b2,
" index ",
index
}));
isCorrupt = true;
return(false);
}
ushort num = BitConverter.ToUInt16(buffer, index);
index += 2;
if (index + (int)num > historyLength)
{
OofHistory.HandleInsufficientDataCorruption(hashCode, string.Concat(new object[]
{
"Unable to get property content of property ",
b,
" entry ",
currentEntry,
" property id ",
b2,
" property size ",
num,
" index ",
index
}));
isCorrupt = true;
return(false);
}
if (flag)
{
index += (int)num;
}
else if (OofHistory.MatchProperty(buffer, b2, propId, num, propValue, ref index))
{
flag = true;
}
}
return(flag);
}
