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Throw an error for unsupported instructions

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This commit is contained in:
Manuel Thalmann 2023-10-13 01:25:46 +02:00
parent 39948e42f2
commit 22b11b1ee8
1 changed files with 21 additions and 24 deletions
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45
hwb1/src/hwb1/MyApplet.java
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@ -22,16 +22,13 @@ import static hwb1.MyAppletStrings.*;
name = "MyAppletStrings")
public class MyApplet extends Applet {
private byte[] storage = null;
/**
* Installs this applet.
*
* @param bArray
* the array containing installation parameters
* @param bOffset
* the starting offset in bArray
* @param bLength
* the length in bytes of the parameter data in bArray
* @param bArray the array containing installation parameters
* @param bOffset the starting offset in bArray
* @param bLength the length in bytes of the parameter data in bArray
*/
public static void install(byte[] bArray, short bOffset, byte bLength) {
new MyApplet();
@ -48,8 +45,7 @@ public class MyApplet extends Applet {
* Processes an incoming APDU.
*
* @see APDU
* @param apdu
* the incoming APDU
* @param apdu the incoming APDU
*/
@Override
public void process(APDU apdu) {
@ -61,33 +57,34 @@ public class MyApplet extends Applet {
switch (instruction) {
case 0x00:
case 0x04:
byte[] response;
byte[] response;
length = apdu.setOutgoing();
if (instruction == 0x00) {
response = AuthorName;
}
else {
} else {
response = storage;
}
if (length > response.length) {
length = (short)response.length;
length = (short) response.length;
}
apdu.setOutgoingLength(length);
apdu.sendBytesLong(response, (short)0, length);
apdu.sendBytesLong(response, (short) 0, length);
break;
case 0x02:
length = apdu.setIncomingAndReceive();
if (length > 20) {
// ToDo: Handle too much data.
}
else {
Util.arrayCopy(buffer, ISO7816.OFFSET_CDATA, storage, (short)0, length);
}
break;
length = apdu.setIncomingAndReceive();
if (length > 20) {
// ToDo: Handle too much data.
} else {
Util.arrayCopy(buffer, ISO7816.OFFSET_CDATA, storage, (short) 0, length);
}
break;
default:
ISOException.throwIt(ISO7816.SW_INS_NOT_SUPPORTED);
break;
}
}
}