soot.jimple.toolkits.pointer.nativemethods.JavaNetInetAddressImplNative Maven / Gradle / Ivy
/* Soot - a J*va Optimization Framework
* Copyright (C) 2003 Feng Qian
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
/**
* Simulates the native method side effects in class java.net.InetAddressImpl
*
* @author Feng Qian
* @author
*/
package soot.jimple.toolkits.pointer.nativemethods;
import soot.*;
import soot.jimple.toolkits.pointer.representations.*;
import soot.jimple.toolkits.pointer.util.*;
public class JavaNetInetAddressImplNative extends NativeMethodClass {
public JavaNetInetAddressImplNative( NativeHelper helper ) { super(helper); }
/**
* Implements the abstract method simulateMethod.
* It distributes the request to the corresponding methods
* by signatures.
*/
public void simulateMethod(SootMethod method,
ReferenceVariable thisVar,
ReferenceVariable returnVar,
ReferenceVariable params[]){
String subSignature = method.getSubSignature();
if (subSignature.equals("java.lang.String getLocalHostName()")){
java_net_InetAddressImpl_getLocalHostName(method, thisVar,
returnVar, params);
return;
} else if (subSignature.equals("java.lang.String getHostByAddress(int)")){
java_net_InetAddressImpl_getHostByAddr(method, thisVar,
returnVar, params);
return;
} else {
defaultMethod(method, thisVar, returnVar, params);
return;
}
}
/************************ java.net.InetAddressImpl *****************/
/**
* Returns a variable pointing to a string constant
*
* I am not sure if repeated calls of methods in this class will
* return the same object or not. A conservative approach would
* say YES, for definitely points-to, but NO for may points-to.
*
* We should avoid analyzing these unsafe native methods.
*
* native java.lang.String getLocalHostName()
* throws java.net.UnknownHostException;
*/
public
void java_net_InetAddressImpl_getLocalHostName(
SootMethod method,
ReferenceVariable thisVar,
ReferenceVariable returnVar,
ReferenceVariable params[]){
helper.assignObjectTo(returnVar, Environment.v().getStringObject());
}
/**
* Create a string object
*
* native java.lang.String getHostByAddr(int)
* throws java.net.UnknownHostException;
*/
public
void java_net_InetAddressImpl_getHostByAddr(SootMethod method,
ReferenceVariable thisVar,
ReferenceVariable returnVar,
ReferenceVariable params[]) {
helper.assignObjectTo(returnVar, Environment.v().getStringObject());
}
/**
* NO side effects.
* native void makeAnyLocalAddress(java.net.InetAddress);
* native byte lookupAllHostAddr(java.lang.String)[][]
* throws java.net.UnknownHostException;
* native int getInetFamily();
*
* @see default(...)
*/
}