org.jf.baksmali.DumpCommand Maven / Gradle / Ivy

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 * modification, are permitted provided that the following conditions are
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 *
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 * notice, this list of conditions and the following disclaimer.
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 * copyright notice, this list of conditions and the following disclaimer
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 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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package org.jf.baksmali;

import com.beust.jcommander.JCommander;
import com.beust.jcommander.Parameter;
import com.beust.jcommander.Parameters;
import org.jf.dexlib2.dexbacked.DexBackedDexFile;
import org.jf.dexlib2.dexbacked.raw.util.DexAnnotator;
import org.jf.util.ConsoleUtil;
import org.jf.util.jcommander.ExtendedParameters;

import javax.annotation.Nonnull;
import java.io.*;
import java.util.List;

@Parameters(commandDescription = "Prints an annotated hex dump for the given dex file")
@ExtendedParameters(
        commandName = "dump",
        commandAliases = "du")
public class DumpCommand extends DexInputCommand {

    @Parameter(names = {"-h", "-?", "--help"}, help = true,
            description = "Show usage information for this command.")
    private boolean help;

    public DumpCommand(@Nonnull List commandAncestors) {
        super(commandAncestors);
    }

    public void run() {
        if (help || inputList == null || inputList.isEmpty()) {
            usage();
            return;
        }

        if (inputList.size() > 1) {
            System.err.println("Too many files specified");
            usage();
            return;
        }

        String input = inputList.get(0);
        loadDexFile(input);

        try {
            dump(dexFile, System.out);
        } catch (IOException ex) {
            System.err.println("There was an error while dumping the dex file");
            ex.printStackTrace(System.err);
        }
    }

    /**
     * Writes an annotated hex dump of the given dex file to output.
     *
     * @param dexFile The dex file to dump
     * @param output An OutputStream to write the annotated hex dump to. The caller is responsible for closing this
     *               when needed.
     *
     * @throws IOException
     */
    public static void dump(@Nonnull DexBackedDexFile dexFile, @Nonnull OutputStream output)
            throws IOException {
        Writer writer = new BufferedWriter(new OutputStreamWriter(output));

        try {
            int consoleWidth = ConsoleUtil.getConsoleWidth();
            if (consoleWidth <= 0) {
                consoleWidth = 120;
            }

            DexAnnotator annotator = new DexAnnotator(dexFile, consoleWidth);
            annotator.writeAnnotations(writer);
        } finally {
            writer.close();
        }
    }
}