len |= 0xff & buf[i++];

        // MECH_OID
        if (buf.length < i + len) {
            throw new IllegalArgumentException();
        }
        final byte[] bo = new byte[len];
        System.arraycopy(buf, i, bo, 0, len);
        i += len;
        this.oid = ASN1ObjectIdentifier.getInstance(bo);

        // NAME_LEN
        if (buf.length < i + NAME_LEN_SIZE) {
            throw new IllegalArgumentException();

     */
    private static String createValidType3Message() {
        // Build a properly formatted Type 3 message
        byte[] message = new byte[200];

        // NTLMSSP signature
        System.arraycopy("NTLMSSP\0".getBytes(), 0, message, 0, 8);

        // Type 3 indicator
        message[8] = 0x03;

        // LM Response (24 bytes at offset 64)
        message[12] = 24; // Length
        message[13] = 0;

        // Signature (16 bytes)
        byte[] signature = new byte[16];
        new SecureRandom().nextBytes(signature);
        System.arraycopy(signature, 0, buffer, index, 16);
        index += 16;

        // Nonce (16 bytes)
        System.arraycopy(testNonce, 0, buffer, index, 16);
        index += 16;

        // Original message size (4 bytes) - little-endian
        int messageSize = 1024;

            // Verify additional information
            assertEquals(0x12345678, SMBUtil.readInt4(buffer, 76));

            // Verify file ID
            byte[] actualFileId = new byte[16];
            System.arraycopy(buffer, 80, actualFileId, 0, 16);
            assertArrayEquals(testFileId, actualFileId);

            // Verify that info.encode was called
            verify(mockInfo, times(1)).encode(any(byte[].class), anyInt());

import static com.google.common.collect.CollectPreconditions.checkRemove;
import static java.lang.Math.max;
import static java.lang.Math.min;
import static java.lang.System.arraycopy;
import static java.util.Objects.requireNonNull;

import com.google.common.annotations.GwtCompatible;
import com.google.common.annotations.J2ktIncompatible;
import com.google.common.annotations.VisibleForTesting;

        if (dst.length - dstIndex < this.pipeDataLen) {
            log.debug("TransCallNamedPipe data too long for buffer");
            return 0;
        }
        System.arraycopy(this.pipeData, this.pipeDataOff, dst, dstIndex, this.pipeDataLen);
        return this.pipeDataLen;
    }

    @Override
    protected int readParametersWireFormat(final byte[] buffer, final int bufferIndex, final int len) {

        if (dst.length - dstIndex < this.pipeDataLen) {
            log.debug("TransTransactNamedPipe data too long for buffer");
            return 0;
        }
        System.arraycopy(this.pipeData, this.pipeDataOff, dst, dstIndex, this.pipeDataLen);
        return this.pipeDataLen;
    }

    @Override
    protected int readParametersWireFormat(final byte[] buffer, final int bufferIndex, final int len) {

                if ((getFlags() & NTLMSSP_NEGOTIATE_SIGN) == NTLMSSP_NEGOTIATE_SIGN) {
                    final byte[] sessionNonce = new byte[16];
                    System.arraycopy(type2.getChallenge(), 0, sessionNonce, 0, 8);
                    System.arraycopy(clientChallenge, 0, sessionNonce, 8, 8);

                    final MD4 md4 = new MD4();
                    md4.update(responseKeyNT);

            System.arraycopy(address.getAddress(), 0, buffer, offset + 8, 16);
            writeInt4(buffer, offset + 24, 0);  // Scope ID
        } else {
            // IPv4 sockaddr_in structure
            writeInt2(buffer, offset, 2);  // AF_INET
            writeInt2(buffer, offset + 2, 445);  // Port
            System.arraycopy(address.getAddress(), 0, buffer, offset + 4, 4);
        }
    }

import static com.google.common.base.Preconditions.checkArgument;
import static com.google.common.base.Preconditions.checkElementIndex;
import static com.google.common.base.Preconditions.checkNotNull;
import static java.lang.System.arraycopy;
import static java.util.Collections.emptyMap;

import com.google.common.annotations.GwtCompatible;
import com.google.common.annotations.GwtIncompatible;
import com.google.common.annotations.J2ktIncompatible;