Vuln jay

fuzzer/Command.java

+import java.security.SecureRandom;
+
+public class Command {
+    private Instruction instruction;
+    private String[] arguments;
+
+    private static final int COMMAND_LENGTH = 1022;
+
+    private static final SecureRandom rand = new SecureRandom();
+
+    Command(Instruction instruction, String[] arguments) {
+        this.instruction = instruction;
+        this.arguments = arguments;
+    }
+
+    public String toString() {
+        String argumentString = "";
+        for (String arg : arguments) {
+            argumentString += " " + arg;
+        }
+        String command = instruction.getOpcode() + argumentString;
+        if (command.length() > Command.COMMAND_LENGTH) {
+            return command.substring(0, Command.COMMAND_LENGTH);
+        }
+        return command;
+    }
+
+    public Instruction getInstruction() {
+        return this.instruction;
+    }
+
+    public String[] getArguments() {
+        return this.arguments;
+    }
+
+    private static String randomString(int length) {
+        String upper = "ABCDEFGHIJKLMNOPQRSTUVWXYZ";
+        String lower = upper.toLowerCase();
+        String digits = "0123456789";
+        char[] symbols = (upper + lower + digits).toCharArray();
+        char[] buffer = new char[length];
+        for (int i = 0; i < length; i++) {
+            buffer[i] = symbols[rand.nextInt(symbols.length)];
+        }
+        return new String(buffer);
+    }
+
+    public static Command randomCommand() {
+        Instruction instruction = Instruction.randomInstruction();
+        String[] arguments = new String[instruction.getOperands().length];
+        for (int j = 0; j < arguments.length; j++) {
+            arguments[j] = Command.randomString(rand.nextInt((COMMAND_LENGTH / 3) - 1) + 1);
+        }
+        return new Command(instruction, arguments);
+    }
+}