+++ /dev/null
-/* JarInputStream.java - InputStream for reading jar files
- Copyright (C) 2000 Free Software Foundation, Inc.
-
-This file is part of GNU Classpath.
-
-GNU Classpath is free software; you can redistribute it and/or modify
-it under the terms of the GNU General Public License as published by
-the Free Software Foundation; either version 2, or (at your option)
-any later version.
-
-GNU Classpath 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 for more details.
-
-You should have received a copy of the GNU General Public License
-along with GNU Classpath; see the file COPYING. If not, write to the
-Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
-02111-1307 USA.
-
-Linking this library statically or dynamically with other modules is
-making a combined work based on this library. Thus, the terms and
-conditions of the GNU General Public License cover the whole
-combination.
-
-As a special exception, the copyright holders of this library give you
-permission to link this library with independent modules to produce an
-executable, regardless of the license terms of these independent
-modules, and to copy and distribute the resulting executable under
-terms of your choice, provided that you also meet, for each linked
-independent module, the terms and conditions of the license of that
-module. An independent module is a module which is not derived from
-or based on this library. If you modify this library, you may extend
-this exception to your version of the library, but you are not
-obligated to do so. If you do not wish to do so, delete this
-exception statement from your version. */
-
-package java.util.jar;
-
-import java.io.InputStream;
-import java.io.IOException;
-import java.util.zip.ZipEntry;
-import java.util.zip.ZipInputStream;
-
-/**
- * InputStream for reading jar files.
- * XXX - verification of the signatures in the Manifest file is not yet
- * implemented.
- *
- * @since 1.2
- * @author Mark Wielaard (mark@klomp.org)
- */
-
-public class JarInputStream extends ZipInputStream
-{
- // Fields
-
- /** The manifest for this file or null when there was no manifest. */
- private Manifest manifest;
-
- /** The first real JarEntry for this file. Used by readManifest() to store
- an entry that isn't the manifest but that should be returned by
- getNextEntry next time it is called. Null when no firstEntry was read
- while searching for the manifest entry, or when it has already been
- returned by getNextEntry(). */
- private JarEntry firstEntry;
-
- // Constructors
-
- /**
- * Creates a new JarInputStream and tries to read the manifest.
- * If such a manifest is present the JarInputStream tries to verify all
- * the entry signatures while reading.
- *
- * @param in InputStream to read the jar from
- * @exception IOException when an error occurs when opening or reading
- */
- public JarInputStream(InputStream in) throws IOException
- {
- this(in, true);
- }
-
- /**
- * Creates a new JarInputStream and tries to read the manifest.
- * If such a manifest is present and verify is true, the JarInputStream
- * tries to verify all the entry signatures while reading.
- *
- * @param in InputStream to read the jar from
- * @param verify whether or not to verify the manifest entries
- * @exception IOException when an error occurs when opening or reading
- */
- public JarInputStream(InputStream in, boolean verify) throws IOException
- {
- super(in);
- readManifest(verify);
- }
-
- // Methods
-
- /**
- * Set the manifest if found. Skips all entries that start with "META-INF/"
- *
- * @param verify when true (and a Manifest is found) checks the Manifest,
- * when false no check is performed
- * @exception IOException if an error occurs while reading
- */
- private void readManifest(boolean verify) throws IOException
- {
- firstEntry = (JarEntry) super.getNextEntry();
- while ((firstEntry != null) &&
- firstEntry.getName().startsWith("META-INF/"))
- {
- if (firstEntry.getName().equals(JarFile.MANIFEST_NAME))
- {
- manifest = new Manifest(this);
- }
- firstEntry = (JarEntry) super.getNextEntry();
- }
- closeEntry();
-
- if (verify)
- {
- // XXX
- }
- }
-
- /**
- * Creates a JarEntry for a particular name and consults the manifest
- * for the Attributes of the entry.
- * Used by <code>ZipEntry.getNextEntry()</code>
- *
- * @param name the name of the new entry
- */
- protected ZipEntry createZipEntry(String name)
- {
- ZipEntry zipEntry = super.createZipEntry(name);
- JarEntry jarEntry = new JarEntry(zipEntry);
- if (manifest != null)
- {
- jarEntry.attr = manifest.getAttributes(name);
- }
- return jarEntry;
- }
-
- /**
- * Returns the Manifest for the jar file or null if there was no Manifest.
- */
- public Manifest getManifest()
- {
- return manifest;
- }
-
- /**
- * Returns the next entry or null when there are no more entries.
- * Does actually return a JarEntry, if you don't want to cast it yourself
- * use <code>getNextJarEntry()</code>. Does not return any entries found
- * at the beginning of the ZipFile that are special
- * (those that start with "META-INF/").
- *
- * @exception IOException if an IO error occurs when reading the entry
- */
- public ZipEntry getNextEntry() throws IOException
- {
- ZipEntry entry;
- if (firstEntry != null)
- {
- entry = firstEntry;
- firstEntry = null;
- }
- else
- {
- entry = super.getNextEntry();
- }
- return entry;
- }
-
- /**
- * Returns the next jar entry or null when there are no more entries.
- *
- * @exception IOException if an IO error occurs when reading the entry
- */
- public JarEntry getNextJarEntry() throws IOException
- {
- return (JarEntry) getNextEntry();
- }
-
- /**
- * XXX
- *
- * @param buf XXX
- * @param off XXX
- * @param len XXX
- * @return XXX
- * @exception IOException XXX
- */
- public int read(byte[]buf, int off, int len) throws IOException
- {
- // XXX if (verify) {}
- return super.read(buf, off, len);
- }
-}
projects / msp430-gcc.git / blobdiff