org.apache.bcel.generic.ICONST Java Examples
The following examples show how to use
org.apache.bcel.generic.ICONST.
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Example #1
| Source File: TaintFrameModelingVisitor.java From Android_Code_Arbiter with GNU Lesser General Public License v3.0 | 5 votes |
|
@Override
public void visitICONST(ICONST obj) {
Taint t = new Taint(Taint.State.SAFE);
if (FindSecBugsGlobalConfig.getInstance().isDebugTaintState()) {
t.setDebugInfo("" + obj.getValue().intValue());
}
getFrame().pushValue(t);
}
Example #2
| Source File: RedundantConditions.java From spotbugs with GNU Lesser General Public License v2.1 | 5 votes |
|
private int getIntValue(InstructionHandle handle) {
Instruction instruction = handle.getInstruction();
if (instruction instanceof ICONST) {
return ((ICONST) instruction).getValue().intValue();
}
return -1;
}
Example #3
| Source File: XmlStreamReaderDetector.java From Android_Code_Arbiter with GNU Lesser General Public License v3.0 | 4 votes |
|
@Override
public void sawOpcode(int seen) {
if (seen != Constants.INVOKEVIRTUAL) {
return;
}
String fullClassName = getClassConstantOperand();
String method = getNameConstantOperand();
//The method call is doing XML parsing (see class javadoc)
if (fullClassName.equals("javax/xml/stream/XMLInputFactory") &&
method.equals("createXMLStreamReader")) {
ClassContext classCtx = getClassContext();
ConstantPoolGen cpg = classCtx.getConstantPoolGen();
CFG cfg;
try {
cfg = classCtx.getCFG(getMethod());
} catch (CFGBuilderException e) {
AnalysisContext.logError("Cannot get CFG", e);
return;
}
for (Iterator<Location> i = cfg.locationIterator(); i.hasNext();) {
Location location = i.next();
Instruction inst = location.getHandle().getInstruction();
//DTD disallow
//XMLInputFactory.setProperty
if (inst instanceof org.apache.bcel.generic.INVOKEVIRTUAL) {
InvokeInstruction invoke = (InvokeInstruction) inst;
if ("setProperty".equals(invoke.getMethodName(cpg))) {
org.apache.bcel.generic.LDC loadConst = ByteCode.getPrevInstruction(location.getHandle(), LDC.class);
if (loadConst != null) {
if (PROPERTY_SUPPORT_DTD.equals(loadConst.getValue(cpg)) || PROPERTY_IS_SUPPORTING_EXTERNAL_ENTITIES.equals(loadConst.getValue(cpg))){
InstructionHandle prev1 = location.getHandle().getPrev();
InstructionHandle prev2 = prev1.getPrev();
//Case where the boolean is wrapped like : Boolean.valueOf(true) : 2 instructions
if (invokeInstruction().atClass("java.lang.Boolean").atMethod("valueOf").matches(prev1.getInstruction(),cpg)) {
if (prev2.getInstruction() instanceof ICONST) {
Integer valueWrapped = ByteCode.getConstantInt(prev2);
if (valueWrapped != null && valueWrapped.equals(0)) { //Value is false
return; //Safe feature is disable
}
}
}
//Case where the boolean is declared as : Boolean.FALSE
else if (prev1.getInstruction() instanceof org.apache.bcel.generic.GETSTATIC) {
org.apache.bcel.generic.GETSTATIC getstatic = (org.apache.bcel.generic.GETSTATIC) prev1.getInstruction();
if (getstatic.getClassType(cpg).getClassName().equals("java.lang.Boolean") &&
getstatic.getFieldName(cpg).equals("FALSE")) {
return;
}
}
}
}
}
}
}
//Raise a bug
bugReporter.reportBug(new BugInstance(this, XXE_XMLSTREAMREADER_TYPE, Priorities.NORMAL_PRIORITY) //
.addClass(this).addMethod(this).addSourceLine(this));
}
}
Example #4
| Source File: ConstantFrameModelingVisitor.java From spotbugs with GNU Lesser General Public License v2.1 | 4 votes |
|
@Override
public void visitICONST(ICONST obj) {
Number value = obj.getValue();
Constant c = new Constant(value);
getFrame().pushValue(c);
}
Example #5
| Source File: BCELPerfTest.java From annotation-tools with MIT License | 4 votes |
|
byte[] counterAdaptClass(final InputStream is, final String name)
throws Exception
{
JavaClass jc = new ClassParser(is, name + ".class").parse();
ClassGen cg = new ClassGen(jc);
ConstantPoolGen cp = cg.getConstantPool();
if (!cg.isInterface()) {
FieldGen fg = new FieldGen(ACC_PUBLIC,
Type.getType("I"),
"_counter",
cp);
cg.addField(fg.getField());
}
Method[] ms = cg.getMethods();
for (int j = 0; j < ms.length; ++j) {
MethodGen mg = new MethodGen(ms[j], cg.getClassName(), cp);
if (!mg.getName().equals("<init>") && !mg.isStatic()
&& !mg.isAbstract() && !mg.isNative())
{
if (mg.getInstructionList() != null) {
InstructionList il = new InstructionList();
il.append(new ALOAD(0));
il.append(new ALOAD(0));
il.append(new GETFIELD(cp.addFieldref(name, "_counter", "I")));
il.append(new ICONST(1));
il.append(new IADD());
il.append(new PUTFIELD(cp.addFieldref(name, "_counter", "I")));
mg.getInstructionList().insert(il);
mg.setMaxStack(Math.max(mg.getMaxStack(), 2));
boolean lv = ms[j].getLocalVariableTable() == null;
boolean ln = ms[j].getLineNumberTable() == null;
if (lv) {
mg.removeLocalVariables();
}
if (ln) {
mg.removeLineNumbers();
}
cg.replaceMethod(ms[j], mg.getMethod());
}
}
}
return cg.getJavaClass().getBytes();
}
Example #6
| Source File: BCELPerfTest.java From annotation-tools with MIT License | 4 votes |
|
byte[] counterAdaptClass(final InputStream is, final String name)
throws Exception
{
JavaClass jc = new ClassParser(is, name + ".class").parse();
ClassGen cg = new ClassGen(jc);
ConstantPoolGen cp = cg.getConstantPool();
if (!cg.isInterface()) {
FieldGen fg = new FieldGen(ACC_PUBLIC,
Type.getType("I"),
"_counter",
cp);
cg.addField(fg.getField());
}
Method[] ms = cg.getMethods();
for (int j = 0; j < ms.length; ++j) {
MethodGen mg = new MethodGen(ms[j], cg.getClassName(), cp);
if (!mg.getName().equals("<init>") && !mg.isStatic()
&& !mg.isAbstract() && !mg.isNative())
{
if (mg.getInstructionList() != null) {
InstructionList il = new InstructionList();
il.append(new ALOAD(0));
il.append(new ALOAD(0));
il.append(new GETFIELD(cp.addFieldref(name, "_counter", "I")));
il.append(new ICONST(1));
il.append(new IADD());
il.append(new PUTFIELD(cp.addFieldref(name, "_counter", "I")));
mg.getInstructionList().insert(il);
mg.setMaxStack(Math.max(mg.getMaxStack(), 2));
boolean lv = ms[j].getLocalVariableTable() == null;
boolean ln = ms[j].getLineNumberTable() == null;
if (lv) {
mg.removeLocalVariables();
}
if (ln) {
mg.removeLineNumbers();
}
cg.replaceMethod(ms[j], mg.getMethod());
}
}
}
return cg.getJavaClass().getBytes();
}
