import java.net.UnknownHostException;

import jcifs.smb1.util.LogStream;
import jcifs.smb1.util.transport.TransportException;

/**
 * This InputStream can read bytes from a file on an SMB file server. Offsets are 64 bits.
 */

public class SmbFileInputStream extends InputStream {

    private long fp;
    private final int readSize;
    private int openFlags;
    private final int access;

        }
        if (srcOffset < 0 || dstOffset < 0 || length < 0) {
            throw new IllegalArgumentException("Offsets and length must be non-negative");
        }
        if (srcOffset + length > src.length) {
            throw new IllegalArgumentException(
                    "Source array bounds exceeded: offset=" + srcOffset + ", length=" + length + ", array.length=" + src.length);
        }

        @DisplayName("Should handle buffer with offset correctly")
        void testReadWithBufferOffset() throws Exception {
            int offset = 10;
            byte[] buffer = new byte[64];
            byte[] fileId = createTestData(16);
            byte oplockLevel = 0x02;

            // Fill some random data before offset
            Arrays.fill(buffer, 0, offset, (byte) 0xAB);

    void testReadParametersWireFormatWithBufferOffset() throws Exception {
        int offset = 20;
        byte[] notificationData = createSingleNotificationBuffer("offset_test.txt", FileNotifyInformation.FILE_ACTION_MODIFIED);
        byte[] buffer = new byte[offset + notificationData.length];
        System.arraycopy(notificationData, 0, buffer, offset, notificationData.length);

//
//	var spd sparseDatas = []sparseEntry{
//		{Offset: 2,  Length: 5},  // Data fragment for 2..6
//		{Offset: 18, Length: 3},  // Data fragment for 18..20
//	}
//	var sph sparseHoles = []sparseEntry{
//		{Offset: 0,  Length: 2},  // Hole fragment for 0..1
//		{Offset: 7,  Length: 11}, // Hole fragment for 7..17
//		{Offset: 21, Length: 4},  // Hole fragment for 21..24
//	}
//

            String[] words = text.trim().split("[\\s@#$.,!?;:()\\[\\]{}\"']+");

            int position = 0;
            int offset = 0;
            for (String word : words) {
                if (!word.isEmpty()) {
                    int startOffset = text.indexOf(word, offset);
                    int endOffset = startOffset + word.length();

                    // Handle decimal numbers

	}

	return &HTTPRangeSpec{Start: start, End: end}
}

// Returns the compressed offset which should be skipped.
// If encrypted offsets are adjusted for encrypted block headers/trailers.
// Since de-compression is after decryption encryption overhead is only added to compressedOffset.

        @DisplayName("Should decode at various offsets")
        @ValueSource(ints = { 0, 10, 50, 100, 200 })
        void testDecodeAtVariousOffsets(int offset) throws SMBProtocolDecodingException {
            byte[] buffer = new byte[512];
            byte[] responseData = createValidCopyChunkResponse(7, 8192, 57344);
            System.arraycopy(responseData, 0, buffer, offset, responseData.length);

    /**
     * Test integer overflow protection in security buffer offset calculation.
     */
    @Test
    public void testSecurityBufferIntegerOverflow() {
        byte[] buffer = createBasicNegotiateResponseBuffer();

        // Set security buffer offset close to Integer.MAX_VALUE to test overflow protection
        SMBUtil.writeInt2(32767, buffer, 56); // Large offset (will be added to header start)

        buffer[offset] = 0x01; // revision
        buffer[offset + 1] = 0x00; // padding
        SMBUtil.writeInt2(0x8004, buffer, offset + 2); // type
        SMBUtil.writeInt4(0, buffer, offset + 4); // owner offset
        SMBUtil.writeInt4(0, buffer, offset + 8); // group offset
        SMBUtil.writeInt4(0, buffer, offset + 12); // SACL offset
        SMBUtil.writeInt4(20, buffer, offset + 16); // DACL offset