internal static bool SeekBackwardsToSignature(Stream stream, uint signatureToFind)
{
int bufferPointer = 0;
uint num = 0;
byte[] buffer = new byte[32];
bool flag1 = false;
bool flag2 = false;
label_6:
while (!flag2 && !flag1)
{
flag1 = ZipHelper.SeekBackwardsAndRead(stream, buffer, out bufferPointer);
while (true)
{
if (bufferPointer >= 0 && !flag2)
{
num = num << 8 | (uint)buffer[bufferPointer];
if ((int)num != (int)signatureToFind)
{
--bufferPointer;
}
else
{
flag2 = true;
}
}
else
{
goto label_6;
}
}
}
if (!flag2)
{
return(false);
}
stream.Seek((long)bufferPointer, SeekOrigin.Current);
return(true);
}
