FML.rar_JAVA FML31 下载_java fml31 安装_javafml31_oa_oa 系统

/* * Copyright (c) 2005, 2006, Oracle and/or its affiliates. All rights reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 only, as * published by the Free Software Foundation. Oracle designates this * particular file as subject to the "Classpath" exception as provided * by Oracle in the LICENSE file that accompanied this code. * * This code is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License * version 2 for more details (a copy is included in the LICENSE file that * accompanied this code). * * You should have received a copy of the GNU General Public License version * 2 along with this work; if not, write to the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. * * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA * or visit www.oracle.com if you need additional information or have any * questions. */ package javax.smartcardio; import java.util.Arrays; import java.nio.ByteBuffer; /** * A command APDU following the structure defined in ISO/IEC 7816-4. * It consists of a four byte header and a conditional body of variable length. * This class does not attempt to verify that the APDU encodes a semantically * valid command. * * <p>Note that when the expected length of the response APDU is specified * in the {@linkplain #CommandAPDU(int,int,int,int,int) constructors}, * the actual length (Ne) must be specified, not its * encoded form (Le). Similarly, {@linkplain #getNe} returns the actual * value Ne. In other words, a value of 0 means "no data in the response APDU" * rather than "maximum length." * * <p>This class supports both the short and extended forms of length * encoding for Ne and Nc. However, note that not all terminals and Smart Cards * are capable of accepting APDUs that use the extended form. * * <p>For the header bytes CLA, INS, P1, and P2 the Java type <code>int</code> * is used to represent the 8 bit unsigned values. In the constructors, only * the 8 lowest bits of the <code>int</code> value specified by the application * are significant. The accessor methods always return the byte as an unsigned * value between 0 and 255. * * <p>Instances of this class are immutable. Where data is passed in or out * via byte arrays, defensive cloning is performed. * * @see ResponseAPDU * @see CardChannel#transmit CardChannel.transmit * * @since 1.6 * @author Andreas Sterbenz * @author JSR 268 Expert Group */ public final class CommandAPDU implements java.io.Serializable { private static final long serialVersionUID = 398698301286670877L; private static final int MAX_APDU_SIZE = 65544; /** @serial */ private byte[] apdu; // value of nc private transient int nc; // value of ne private transient int ne; // index of start of data within the apdu array private transient int dataOffset; /** * Constructs a CommandAPDU from a byte array containing the complete * APDU contents (header and body). * * <p>Note that the apdu bytes are copied to protect against * subsequent modification. * * @param apdu the complete command APDU * * @throws NullPointerException if apdu is null * @throws IllegalArgumentException if apdu does not contain a valid * command APDU */ public CommandAPDU(byte[] apdu) { this.apdu = apdu.clone(); parse(); } /** * Constructs a CommandAPDU from a byte array containing the complete * APDU contents (header and body). The APDU starts at the index * <code>apduOffset</code> in the byte array and is <code>apduLength</code> * bytes long. * * <p>Note that the apdu bytes are copied to protect against * subsequent modification. * * @param apdu the complete command APDU * @param apduOffset the offset in the byte array at which the apdu * data begins * @param apduLength the length of the APDU * * @throws NullPointerException if apdu is null * @throws IllegalArgumentException if apduOffset or apduLength are * negative or if apduOffset + apduLength are greater than apdu.length, * or if the specified bytes are not a valid APDU */ public CommandAPDU(byte[] apdu, int apduOffset, int apduLength) { checkArrayBounds(apdu, apduOffset, apduLength); this.apdu = new byte[apduLength]; System.arraycopy(apdu, apduOffset, this.apdu, 0, apduLength); parse(); } private void checkArrayBounds(byte[] b, int ofs, int len) { if ((ofs < 0) || (len < 0)) { throw new IllegalArgumentException ("Offset and length must not be negative"); } if (b == null) { if ((ofs != 0) && (len != 0)) { throw new IllegalArgumentException ("offset and length must be 0 if array is null"); } } else { if (ofs > b.length - len) { throw new IllegalArgumentException ("Offset plus length exceed array size"); } } } /** * Creates a CommandAPDU from the ByteBuffer containing the complete APDU * contents (header and body). * The buffer's <code>position</code> must be set to the start of the APDU, * its <code>limit</code> to the end of the APDU. Upon return, the buffer's * <code>position</code> is equal to its limit; its limit remains unchanged. * * <p>Note that the data in the ByteBuffer is copied to protect against * subsequent modification. * * @param apdu the ByteBuffer containing the complete APDU * * @throws NullPointerException if apdu is null * @throws IllegalArgumentException if apdu does not contain a valid * command APDU */ public CommandAPDU(ByteBuffer apdu) { this.apdu = new byte[apdu.remaining()]; apdu.get(this.apdu); parse(); } /** * Constructs a CommandAPDU from the four header bytes. This is case 1 * in ISO 7816, no command body. * * @param cla the class byte CLA * @param ins the instruction byte INS * @param p1 the parameter byte P1 * @param p2 the parameter byte P2 */ public CommandAPDU(int cla, int ins, int p1, int p2) { this(cla, ins, p1, p2, null, 0, 0, 0); } /** * Constructs a CommandAPDU from the four header bytes and the expected * response data length. This is case 2 in ISO 7816, empty command data * field with Ne specified. If Ne is 0, the APDU is encoded as ISO 7816 * case 1. * * @param cla the class byte CLA * @param ins the instruction byte INS * @param p1 the parameter byte P1 * @param p2 the parameter byte P2 * @param ne the maximum number of expected data bytes in a response APDU * * @throws IllegalArgumentException if ne is negative or greater than * 65536 */ public CommandAPDU(int cla, int ins, int p1, int p2, int ne) { this(cla, ins, p1, p2, null, 0, 0, ne); } /** * Constructs a CommandAPDU from the four header bytes and command data. * This is case 3 in ISO 7816, command data present and Ne absent. The * value Nc is taken as data.length. If <code>data</code> is null or * its length is 0, the APDU is encoded as ISO 7816 case 1. * * <p>Note that the data bytes are copied to protect against * subsequent modification. * * @param cla the class byte CLA * @param ins the instruction byte INS * @param p1 the parameter byte P1 * @param p2 the parameter byte P2 *