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Java example source code file (TestParser.java)

This example Java source code file (TestParser.java) is included in the alvinalexander.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" TM.

Learn more about this Java project at its project page.

Java - Java tags/keywords

cofffile, coffheader, exception, exportdirectorytable, optionalheader, optionalheaderdatadirectories, sectionheader, testparser

The TestParser.java Java example source code

/*
 * Copyright (c) 2000, 2010, Oracle and/or its affiliates. All rights reserved.
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 only, as
 * published by the Free Software Foundation.
 *
 * This code 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 General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
 * or visit www.oracle.com if you need additional information or have any
 * questions.
 *
 */

package sun.jvm.hotspot.debugger.win32.coff;

public class TestParser {
  public static void main(String[] args) {
    if (args.length != 1) {
      System.err.println("usage: java TestParser [file name]");
      System.err.println("File name may be an .exe, .dll or .obj");
      System.exit(1);
    }

    try {
      COFFFile file = COFFFileParser.getParser().parse(args[0]);
      if (file.isImage()) {
        System.out.println("PE Image detected.");
      } else {
        System.out.println("PE Image NOT detected, assuming object file.");
      }
      COFFHeader header = file.getHeader();
      int numSections = header.getNumberOfSections();
      System.out.println(numSections + " sections detected.");
      for (int i = 1; i <= numSections; i++) {
        SectionHeader secHeader = header.getSectionHeader(i);
        System.out.println(secHeader.getName());
      }

      // FIXME: the DLL exports are not contained in the COFF symbol
      // table. Instead, they are in the Export Table, one of the
      // Optional Header Data Directories available from the Optional
      // Header. Must implement that next.

      /*
      int numSymbols = header.getNumberOfSymbols();
      System.out.println(numSymbols + " symbols detected.");
      System.out.println("Symbol dump:");
      for (int i = 0; i < header.getNumberOfSymbols(); i++) {
        COFFSymbol sym = header.getCOFFSymbol(i);
        System.out.println("  " + sym.getName());
      }
      */

      // OK, let's give the exported symbols a shot
      OptionalHeader optHdr = header.getOptionalHeader();
      OptionalHeaderDataDirectories ddirs = optHdr.getDataDirectories();
      ExportDirectoryTable exports = ddirs.getExportDirectoryTable();
      System.out.println("Export flags (should be 0): " + exports.getExportFlags());
      System.out.println("DLL name (from export directory table): " +
                         exports.getDLLName());
      int numSymbols = exports.getNumberOfNamePointers();
      System.out.println(numSymbols + " exported symbols detected:");
      for (int i = 0; i < numSymbols; i++) {
        System.out.println("  " + exports.getExportName(i));
      }
    } catch (Exception e) {
      e.printStackTrace();
    }
  }
}

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