CalculateChecksum() [2/2]

static unsafe uint System.Reflection.PortableExecutable.PEBuilder.CalculateChecksum ( IEnumerable< Blob > blobs )

inlinestaticprivateinherited

Definition at line 405 of file PEBuilder.cs.

    {
        uint num = 0u;
        int num2 = -1;
        foreach (Blob blob in blobs)
        {
            ArraySegment<byte> bytes = blob.GetBytes();
            fixed (byte* ptr = bytes.Array)
            {
                byte* ptr2 = ptr + bytes.Offset;
                byte* ptr3 = ptr2 + bytes.Count;
                if (num2 >= 0)
                {
                    num = AggregateChecksum(num, (ushort)((*ptr2 << 8) | num2));
                    ptr2++;
                }
                if ((ptr3 - ptr2) % 2 != 0L)
                {
                    ptr3--;
                    num2 = *ptr3;
                }
                else
                {
                    num2 = -1;
                }
                for (; ptr2 < ptr3; ptr2 += 2)
                {
                    num = AggregateChecksum(num, (ushort)((ptr2[1] << 8) | *ptr2));
                }
            }
        }
        if (num2 >= 0)
        {
            num = AggregateChecksum(num, (ushort)num2);
        }
        return num;
    }

References System.Reflection.PortableExecutable.PEBuilder.AggregateChecksum(), System.bytes, System.Collections.Generic.Dictionary< TKey, TValue >.Count, System.Reflection.Metadata.Blob.GetBytes(), and System.L.