* server. Rather than represent each with it's own <code>Exception</code>
 * class, this class represents all of them. For many of the popular
 * error codes, constants and text messages like "The device is not ready"
 * are provided.
 * <p>
 * The jCIFS client maps DOS error codes to NTSTATUS codes. This means that
 * the user may recieve a different error from a legacy server than that of

 * for a detailed description and examples of the smb URL syntax. If the
 * second argument is <code>true</code>, then bytes will be written to the
 * end of the file rather than the beginning.
 *
 * @param url An smb URL string representing the file to write to
 * @param append Append to the end of file
 */

/**
 * 
 *
 */
public class DosFileFilter implements SmbFileFilter {

    protected String wildcard;
    protected int attributes;


    /**
     * This filter can be considerably more efficient than other file filters
     * as the specified wildcard and attributes are passed to the server for
     * filtering there (although attributes are largely ignored by servers
     * they are filtered locally by the default accept method).

 */

package jcifs.smb1.smb1;

public class DosFileFilter implements SmbFileFilter {

    protected String wildcard;
    protected int attributes;

/* This filter can be considerably more efficient than other file filters
 * as the specifed wildcard and attributes are passed to the server for
 * filtering there (although attributes are largely ignored by servers
 * they are filtered locally by the default accept method).
 */

            throw seToIoe(se);
        }
    }
/**
 * Skip n bytes of data on this stream. This operation will not result
 * in any IO with the server. Unlink <tt>InputStream</tt> value less than
 * the one provided will not be returned if it exceeds the end of the file
 * (if this is a problem let us know).
 */
    public long skip( long n ) throws IOException {
        if (n > 0) {
            fp += n;

 * server. Rather than represent each with it's own <code>Exception</code>
 * class, this class represents all of them. For many of the popular
 * error codes, constants and text messages like "The device is not ready"
 * are provided.
 * <p>
 * The jCIFS client maps DOS error codes to NTSTATUS codes. This means that
 * the user may receive a different error from a legacy server than that of

     *
     * @see jcifs.BufferCache#releaseBuffer(byte[])
     */
    @Override
    public void releaseBuffer ( byte[] buf ) {
        if ( buf == null ) {
            return;
        }
        // better safe than sorry: prevent leaks if there is some out of bound access
        Arrays.fill(buf, (byte) 0);
        synchronized ( this.cache ) {
            if ( this.freeBuffers < this.cache.length ) {

/**
 * This is an implementation of the HMACT64 keyed hashing algorithm.
 * HMACT64 is defined by Luke Leighton as a modified HMAC-MD5 (RFC 2104)
 * in which the key is truncated at 64 bytes (rather than being hashed
 * via MD5).
 */ 
public class HMACT64 extends MessageDigest implements Cloneable {

    private static final int BLOCK_LENGTH = 64;

    private static final byte IPAD = (byte) 0x36;

/**
 * This is an implementation of the HMACT64 keyed hashing algorithm.
 * HMACT64 is defined by Luke Leighton as a modified HMAC-MD5 (RFC 2104)
 * in which the key is truncated at 64 bytes (rather than being hashed
 * via MD5).
 */
class HMACT64 extends MessageDigest implements Cloneable {

    private static final int BLOCK_LENGTH = 64;

    private static final byte IPAD = (byte) 0x36;

            }

            while ((b & 0x80) != 0)
            {
                if ((tagNo >>> 24) != 0)
                {
                    throw new IOException("Tag number more than 31 bits");
                }

                tagNo <<= 7;

                b = s.read();
                if (b < 0)
                {