LibC binding with JNA

LibC.java

package com.ayosec.misc;

import com.sun.jna.*;

public class LibC {

  public interface Handle extends Library {
    Handle module = (Handle) Native.loadLibrary("c", Handle.class);

    int getpid();
    int getppid();
    int kill(int pid, int signal);
    int readlink(String path, byte[] buffer, int size);
  }

  public static String readlink(String path) throws java.io.FileNotFoundException {
    byte[] buffer = new byte[300];
    int size = LibC.Handle.module.readlink(path, buffer, 300);
    if(size > 0)
      return new String(buffer, 0, size);
    else
      throw new java.io.FileNotFoundException(path);
  }
}