// Copyright 2011 Google Inc. All Rights Reserved.

package com.google.common.hash;

import static com.google.common.base.Preconditions.checkPositionIndexes;
import static com.google.common.hash.LittleEndianByteArray.load64;
import static com.google.common.hash.LittleEndianByteArray.load64Safely;
import static java.lang.Long.rotateRight;

import com.google.common.annotations.VisibleForTesting;

/**

        dstIndex += 2;

        SMBUtil.writeInt2(4, dst, dstIndex); // NameLength
        dstIndex += 2;

        SMBUtil.writeInt2(0, dst, dstIndex); // Reserved
        dstIndex += 2;

        SMBUtil.writeInt2(24, dst, dstIndex); // DataOffset (from start of context)
        dstIndex += 2;

        SMBUtil.writeInt4(STRUCTURE_SIZE, dst, dstIndex); // DataLength

        this.leaseState = SMBUtil.readInt4(buffer, bufferIndex);
        bufferIndex += 4;

        this.leaseFlags = SMBUtil.readInt4(buffer, bufferIndex);
        bufferIndex += 4;

        // LeaseDuration (8 bytes) - reserved, skip
        bufferIndex += 8;

        return bufferIndex - start;
    }

        final int start = dstIndex;
        SMBUtil.writeInt2(24, dst, dstIndex);
        SMBUtil.writeInt2(this.closeFlags, dst, dstIndex + 2);
        dstIndex += 4;
        dstIndex += 4; // Reserved
        System.arraycopy(this.fileId, 0, dst, dstIndex, 16);
        dstIndex += 16;

        if (log.isDebugEnabled()) {

        // Check information level (first 2 bytes)
        int actualInfoLevel = SMBUtil.readInt2(buffer, 0);
        assertEquals(0x0101, actualInfoLevel); // FILE_BASIC_INFO maps to 0x0101

        // Check reserved bytes (4 bytes of 0x00)
        assertEquals(0x00, buffer[2]);
        assertEquals(0x00, buffer[3]);
        assertEquals(0x00, buffer[4]);
        assertEquals(0x00, buffer[5]);

        final int start = dstIndex;
        SMBUtil.writeInt2(this.fileAttributes, dst, dstIndex);
        dstIndex += 2;
        SMBUtil.writeUTime(this.lastWriteTime, dst, dstIndex);
        dstIndex += 4;
        // reserved
        dstIndex += 10;
        return dstIndex - start;
    }

    @Override
    protected int writeBytesWireFormat(final byte[] dst, int dstIndex) {
        final int start = dstIndex;

        int n = block.writeAndXWireFormat(buf, 0);

        assertTrue(n > 0);
        // Common AndX header: command at +1, reserved at +2, offset at +3/+4
        assertEquals((byte) 0xFF, buf[1], "AndX command should be 0xFF when no chaining");
        assertEquals((byte) 0x00, buf[2], "Reserved byte must be 0");
        assertEquals((byte) 0xDE, buf[3], "Sentinel low offset when no chaining");

            byte[] buffer = new byte[10];
            int bufferIndex = 0;
            SMBUtil.writeInt2(4, buffer, bufferIndex); // Write structure size = 4
            SMBUtil.writeInt2(0, buffer, bufferIndex + 2); // Reserved field

            // When
            int bytesRead = response.readBytesWireFormat(buffer, bufferIndex);

            // Then
            assertEquals(4, bytesRead);
        }

        @Test

        if (this.structureSize != 44) {
            throw new SMBProtocolDecodingException("Invalid lease break structure size: " + this.structureSize);
        }
        bufferIndex += 2;

        // Reserved (2 bytes)
        bufferIndex += 2;

        // Flags (4 bytes)
        this.flags = SMBUtil.readInt4(buffer, bufferIndex);
        bufferIndex += 4;

        // LeaseKey (16 bytes)

        if (this.structureSize != 36) {
            throw new SMBProtocolDecodingException("Invalid lease break response structure size: " + this.structureSize);
        }
        bufferIndex += 2;

        // Reserved (2 bytes)
        bufferIndex += 2;

        // Flags (4 bytes)
        this.flags = SMBUtil.readInt4(buffer, bufferIndex);
        bufferIndex += 4;

        // LeaseKey (16 bytes)