JDK 11 java.security.jgss.jmod - Security JGSS Module

JDK 11 java.security.jgss.jmod is the JMOD file for JDK 11 Security JGSS (Java Generic Security Service) module.

JDK 11 Security JGSS module compiled class files are stored in \fyicenter\jdk-11.0.1\jmods\java.security.jgss.jmod.

JDK 11 Security JGSS module compiled class files are also linked and stored in the \fyicenter\jdk-11.0.1\lib\modules JImage file.

JDK 11 Security JGSS module source code files are stored in \fyicenter\jdk-11.0.1\lib\src.zip\java.security.jgss.

You can click and view the content of each source code file in the list below.

✍: FYIcenter

sun/security/jgss/GSSToken.java

/*
 * Copyright (c) 2005, Oracle and/or its affiliates. All rights reserved.
 * ORACLE PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
 *
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 */

package sun.security.jgss;

import java.io.InputStream;
import java.io.OutputStream;
import java.io.IOException;
import java.io.EOFException;
import sun.security.util.*;

/**
 * Utilities for processing GSS Tokens.
 *
 */

public abstract class GSSToken {

    /**
     * Copies an integer value to a byte array in little endian form.
     * @param value the integer value to write
     * @param array the byte array into which the integer must be copied. It
     * is assumed that the array will be large enough to hold the 4 bytes of
     * the integer.
     */
    public static final void writeLittleEndian(int value, byte[] array) {
        writeLittleEndian(value, array, 0);
    }

    /**
     * Copies an integer value to a byte array in little endian form.
     * @param value the integer value to write
     * @param array the byte array into which the integer must be copied. It
     * is assumed that the array will be large enough to hold the 4 bytes of
     * the integer.
     * @param pos the position at which to start writing
     */
    public static final void writeLittleEndian(int value, byte[] array,
                                               int pos) {
        array[pos++] = (byte)(value);
        array[pos++] = (byte)((value>>>8));
        array[pos++] = (byte)((value>>>16));
        array[pos++] = (byte)((value>>>24));
    }

    public static final void writeBigEndian(int value, byte[] array) {
        writeBigEndian(value, array, 0);
    }

    public static final void writeBigEndian(int value, byte[] array,
                                               int pos) {
        array[pos++] = (byte)((value>>>24));
        array[pos++] = (byte)((value>>>16));
        array[pos++] = (byte)((value>>>8));
        array[pos++] = (byte)(value);
    }

    /**
     * Reads an integer value from a byte array in little endian form. This
     * method allows the reading of two byte values as well as four bytes
     * values both of which are needed in the Kerberos v5 GSS-API mechanism.
     *
     * @param data the array containing the bytes of the integer value
     * @param pos the offset in the array
     * @param size the number of bytes to read from the array.
     * @return the integer value
     */
    public static final int readLittleEndian(byte[] data, int pos, int size) {
        int retVal = 0;
        int shifter = 0;
        while (size > 0) {
            retVal += (data[pos] & 0xff) << shifter;
            shifter += 8;
            pos++;
            size--;
        }
        return retVal;
    }

    public static final int readBigEndian(byte[] data, int pos, int size) {
        int retVal = 0;
        int shifter = (size-1)*8;
        while (size > 0) {
            retVal += (data[pos] & 0xff) << shifter;
            shifter -= 8;
            pos++;
            size--;
        }
        return retVal;
    }

    /**
     * Writes a two byte integer value to a OutputStream.
     *
     * @param val the integer value. It will lose the high-order two bytes.
     * @param os the OutputStream to write to
     * @throws IOException if an error occurs while writing to the OutputStream
     */
    public static final void writeInt(int val, OutputStream os)
        throws IOException {
        os.write(val>>>8);
        os.write(val);
    }

    /**
     * Writes a two byte integer value to a byte array.
     *
     * @param val the integer value. It will lose the high-order two bytes.
     * @param dest the byte array to write to
     * @param pos the offset to start writing to
     */
    public static final int writeInt(int val, byte[] dest, int pos) {
        dest[pos++] = (byte)(val>>>8);
        dest[pos++] = (byte)val;
        return pos;
    }

    /**
     * Reads a two byte integer value from an InputStream.
     *
     * @param is the InputStream to read from
     * @return the integer value
     * @throws IOException if some errors occurs while reading the integer
     * bytes.
     */
    public static final int readInt(InputStream is) throws IOException {
        return (((0xFF & is.read()) << 8)
                 | (0xFF & is.read()));
    }

    /**
     * Reads a two byte integer value from a byte array.
     *
     * @param src the byte arra to read from
     * @param pos the offset to start reading from
     * @return the integer value
     */
    public static final int readInt(byte[] src, int pos) {
        return ((0xFF & src[pos])<<8 | (0xFF & src[pos+1]));
    }

    /**
     * Blocks till the required number of bytes have been read from the
     * input stream.
     *
     * @param is the InputStream to read from
     * @param buffer the buffer to store the bytes into
     * @throws EOFException if EOF is reached before all bytes are
     *         read.
     * @throws IOException is an error occurs while reading
     */
    public static final void readFully(InputStream is, byte[] buffer)
        throws IOException {
        readFully(is, buffer, 0, buffer.length);
    }

    /**
     * Blocks till the required number of bytes have been read from the
     * input stream.
     *
     * @param is the InputStream to read from
     * @param buffer the buffer to store the bytes into
     * @param offset the offset to start storing at
     * @param len the number of bytes to read
     * @throws EOFException if EOF is reached before all bytes are
     *         read.
     * @throws IOException is an error occurs while reading
     */
    public static final void readFully(InputStream is,
                                       byte[] buffer, int offset, int len)
        throws IOException {
        int temp;
        while (len > 0) {
            temp = is.read(buffer, offset, len);
            if (temp == -1)
                throw new EOFException("Cannot read all "
                                       + len
                                       + " bytes needed to form this token!");
            offset += temp;
            len -= temp;
        }
    }

    public static final void debug(String str) {
        System.err.print(str);
    }

    public static final  String getHexBytes(byte[] bytes) {
        return getHexBytes(bytes, 0, bytes.length);
    }

    public static final  String getHexBytes(byte[] bytes, int len) {
        return getHexBytes(bytes, 0, len);
    }

    public static final String getHexBytes(byte[] bytes, int pos, int len) {
        StringBuilder sb = new StringBuilder();
        for (int i = pos; i < (pos+len); i++) {
            int b1 = (bytes[i]>>4) & 0x0f;
            int b2 = bytes[i] & 0x0f;

            sb.append(Integer.toHexString(b1));
            sb.append(Integer.toHexString(b2));
            sb.append(' ');
        }
        return sb.toString();
    }

}

sun/security/jgss/GSSToken.java

 

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