de.schlichtherle
Class Decrypt

java.lang.Object
  de.schlichtherle.Decrypt

Direct Known Subclasses:

decrypt

public class Decrypt
extends Object

Decrypts the contents of the RAES file provided as the first argument into the file provided as the second argument for the main method.

Please note that you should not use this utility to decrypt an RAES encrypted ZIP file (usually a file with a ".tzp" or ".zip.rae" suffix) back to a plain ZIP file. This is because RAES encrypted ZIP files use the "UTF-8" as their character set, whereas plain ZIP files use "IBM437", a.k.a. "CP437". To decrypt an RAES encrypted ZIP file to a plain ZIP file, use the "cp" command of the nzip class instead. This class knows about the correct character set charsets for the various flavours of ZIP compatible files.

Since:

TrueZIP 6.5

Version:

TrueZIP 6.7

Author:

Christian Schlichtherle

Nested Class Summary

protected static class	de.schlichtherle.CommandLineUtility.ProgressMonitor
class	Decrypt.IllegalUsageException

Field Summary

protected PrintStream	err The print stream for error output.
protected PrintStream	out The print stream for standard output.
protected de.schlichtherle.CommandLineUtility.ProgressMonitor	progressMonitor The command line progress monitor.

Constructor Summary

Decrypt()

Decrypt(OutputStream out, OutputStream err, boolean autoFlush)

Method Summary

static void	main(String[] args) Equivalent to System.exit(new Decrypt().run(args));.
int	run(String[] args) Runs this command line utility.
boolean	runWithException(String[] args) Runs this command line utility.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

out

protected final PrintStream out

The print stream for standard output.

err

protected final PrintStream err

The print stream for error output.

progressMonitor

protected final de.schlichtherle.CommandLineUtility.ProgressMonitor progressMonitor

The command line progress monitor.

Constructor Detail

Decrypt

public Decrypt()

Decrypt

public Decrypt(OutputStream out,
               OutputStream err,
               boolean autoFlush)

Method Detail

main

public static void main(String[] args)

Equivalent to System.exit(new Decrypt().run(args));.

runWithException

public boolean runWithException(String[] args)
                         throws Decrypt.IllegalUsageException,
                                IOException

Runs this command line utility. Throws an exception if an error occurs.

Parameters:

args - A non-empty array of Unix-like commands and optional parameters.

Returns:

false iff the command is a test which fails, true otherwise.

Throws:

IOException - On any I/O related exception.

Decrypt.IllegalUsageException

run

public final int run(String[] args)

Runs this command line utility. Prints a user readable error message to the error output stream which was provided to the constructor if an error occurs.

Parameters:

args - A non-empty array of Unix-like commands and optional parameters.

Returns:

1 iff the command fails, 0 otherwise.