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| author | Andrew Haley <aph@redhat.com> | 2016-09-30 16:24:48 +0000 |
|---|---|---|
| committer | Andrew Haley <aph@gcc.gnu.org> | 2016-09-30 16:24:48 +0000 |
| commit | 07b78716af6a9d7c9fd1e94d9baf94a52c873947 (patch) | |
| tree | 3f22b3241c513ad168c8353805614ae1249410f4 /libjava/classpath/java/util/zip/ZipInputStream.java | |
| parent | eae993948bae8b788c53772bcb9217c063716f93 (diff) | |
| download | gcc-07b78716af6a9d7c9fd1e94d9baf94a52c873947.zip gcc-07b78716af6a9d7c9fd1e94d9baf94a52c873947.tar.gz gcc-07b78716af6a9d7c9fd1e94d9baf94a52c873947.tar.bz2 | |
Makefile.def: Remove libjava.
2016-09-30 Andrew Haley <aph@redhat.com>
* Makefile.def: Remove libjava.
* Makefile.tpl: Likewise.
* Makefile.in: Regenerate.
* configure.ac: Likewise.
* configure: Likewise.
* gcc/java: Remove.
* libjava: Likewise.
From-SVN: r240662
Diffstat (limited to 'libjava/classpath/java/util/zip/ZipInputStream.java')
| -rw-r--r-- | libjava/classpath/java/util/zip/ZipInputStream.java | 381 |
1 files changed, 0 insertions, 381 deletions
diff --git a/libjava/classpath/java/util/zip/ZipInputStream.java b/libjava/classpath/java/util/zip/ZipInputStream.java deleted file mode 100644 index 3eae026..0000000 --- a/libjava/classpath/java/util/zip/ZipInputStream.java +++ /dev/null @@ -1,381 +0,0 @@ -/* ZipInputStream.java -- - Copyright (C) 2001, 2002, 2003, 2004, 2005 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., 51 Franklin Street, Fifth Floor, Boston, MA -02110-1301 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.zip; - -import java.io.EOFException; -import java.io.IOException; -import java.io.InputStream; -import java.io.UnsupportedEncodingException; - -/** - * This is a FilterInputStream that reads the files in an zip archive - * one after another. It has a special method to get the zip entry of - * the next file. The zip entry contains information about the file name - * size, compressed size, CRC, etc. - * - * It includes support for STORED and DEFLATED entries. - * - * @author Jochen Hoenicke - */ -public class ZipInputStream extends InflaterInputStream implements ZipConstants -{ - private CRC32 crc = new CRC32(); - private ZipEntry entry = null; - - private int csize; - private int size; - private int method; - private int flags; - private int avail; - private boolean entryAtEOF; - - /** - * Creates a new Zip input stream, reading a zip archive. - */ - public ZipInputStream(InputStream in) - { - super(in, new Inflater(true)); - } - - private void fillBuf() throws IOException - { - avail = len = in.read(buf, 0, buf.length); - } - - private int readBuf(byte[] out, int offset, int length) throws IOException - { - if (avail <= 0) - { - fillBuf(); - if (avail <= 0) - return -1; - } - if (length > avail) - length = avail; - System.arraycopy(buf, len - avail, out, offset, length); - avail -= length; - return length; - } - - private void readFully(byte[] out) throws IOException - { - int off = 0; - int len = out.length; - while (len > 0) - { - int count = readBuf(out, off, len); - if (count == -1) - throw new EOFException(); - off += count; - len -= count; - } - } - - private int readLeByte() throws IOException - { - if (avail <= 0) - { - fillBuf(); - if (avail <= 0) - throw new ZipException("EOF in header"); - } - return buf[len - avail--] & 0xff; - } - - /** - * Read an unsigned short in little endian byte order. - */ - private int readLeShort() throws IOException - { - return readLeByte() | (readLeByte() << 8); - } - - /** - * Read an int in little endian byte order. - */ - private int readLeInt() throws IOException - { - return readLeShort() | (readLeShort() << 16); - } - - /** - * Open the next entry from the zip archive, and return its description. - * If the previous entry wasn't closed, this method will close it. - */ - public ZipEntry getNextEntry() throws IOException - { - if (crc == null) - throw new IOException("Stream closed."); - if (entry != null) - closeEntry(); - - int header = readLeInt(); - if (header == CENSIG) - { - /* Central Header reached. */ - close(); - return null; - } - if (header != LOCSIG) - throw new ZipException("Wrong Local header signature: " - + Integer.toHexString(header)); - /* skip version */ - readLeShort(); - flags = readLeShort(); - method = readLeShort(); - int dostime = readLeInt(); - int crc = readLeInt(); - csize = readLeInt(); - size = readLeInt(); - int nameLen = readLeShort(); - int extraLen = readLeShort(); - - if (method == ZipOutputStream.STORED && csize != size) - throw new ZipException("Stored, but compressed != uncompressed"); - - - byte[] buffer = new byte[nameLen]; - readFully(buffer); - String name; - try - { - name = new String(buffer, "UTF-8"); - } - catch (UnsupportedEncodingException uee) - { - throw new AssertionError(uee); - } - - entry = createZipEntry(name); - entryAtEOF = false; - entry.setMethod(method); - if ((flags & 8) == 0) - { - entry.setCrc(crc & 0xffffffffL); - entry.setSize(size & 0xffffffffL); - entry.setCompressedSize(csize & 0xffffffffL); - } - entry.setDOSTime(dostime); - if (extraLen > 0) - { - byte[] extra = new byte[extraLen]; - readFully(extra); - entry.setExtra(extra); - } - - if (method == ZipOutputStream.DEFLATED && avail > 0) - { - System.arraycopy(buf, len - avail, buf, 0, avail); - len = avail; - avail = 0; - inf.setInput(buf, 0, len); - } - return entry; - } - - private void readDataDescr() throws IOException - { - if (readLeInt() != EXTSIG) - throw new ZipException("Data descriptor signature not found"); - entry.setCrc(readLeInt() & 0xffffffffL); - csize = readLeInt(); - size = readLeInt(); - entry.setSize(size & 0xffffffffL); - entry.setCompressedSize(csize & 0xffffffffL); - } - - /** - * Closes the current zip entry and moves to the next one. - */ - public void closeEntry() throws IOException - { - if (crc == null) - throw new IOException("Stream closed."); - if (entry == null) - return; - - if (method == ZipOutputStream.DEFLATED) - { - if ((flags & 8) != 0) - { - /* We don't know how much we must skip, read until end. */ - byte[] tmp = new byte[2048]; - while (read(tmp) > 0) - ; - - /* read will close this entry */ - return; - } - csize -= inf.getTotalIn(); - avail = inf.getRemaining(); - } - - if (avail > csize && csize >= 0) - avail -= csize; - else - { - csize -= avail; - avail = 0; - while (csize != 0) - { - long skipped = in.skip(csize & 0xffffffffL); - if (skipped <= 0) - throw new ZipException("zip archive ends early."); - csize -= skipped; - } - } - - size = 0; - crc.reset(); - if (method == ZipOutputStream.DEFLATED) - inf.reset(); - entry = null; - entryAtEOF = true; - } - - public int available() throws IOException - { - return entryAtEOF ? 0 : 1; - } - - /** - * Reads a byte from the current zip entry. - * @return the byte or -1 on EOF. - * @exception IOException if a i/o error occured. - * @exception ZipException if the deflated stream is corrupted. - */ - public int read() throws IOException - { - byte[] b = new byte[1]; - if (read(b, 0, 1) <= 0) - return -1; - return b[0] & 0xff; - } - - /** - * Reads a block of bytes from the current zip entry. - * @return the number of bytes read (may be smaller, even before - * EOF), or -1 on EOF. - * @exception IOException if a i/o error occured. - * @exception ZipException if the deflated stream is corrupted. - */ - public int read(byte[] b, int off, int len) throws IOException - { - if (len == 0) - return 0; - if (crc == null) - throw new IOException("Stream closed."); - if (entry == null) - return -1; - boolean finished = false; - switch (method) - { - case ZipOutputStream.DEFLATED: - len = super.read(b, off, len); - if (len < 0) - { - if (!inf.finished()) - throw new ZipException("Inflater not finished!?"); - avail = inf.getRemaining(); - if ((flags & 8) != 0) - readDataDescr(); - - if (inf.getTotalIn() != csize - || inf.getTotalOut() != size) - throw new ZipException("size mismatch: "+csize+";"+size+" <-> "+inf.getTotalIn()+";"+inf.getTotalOut()); - inf.reset(); - finished = true; - } - break; - - case ZipOutputStream.STORED: - - if (len > csize && csize >= 0) - len = csize; - - len = readBuf(b, off, len); - if (len > 0) - { - csize -= len; - size -= len; - } - - if (csize == 0) - finished = true; - else if (len < 0) - throw new ZipException("EOF in stored block"); - break; - } - - if (len > 0) - crc.update(b, off, len); - - if (finished) - { - if ((crc.getValue() & 0xffffffffL) != entry.getCrc()) - throw new ZipException("CRC mismatch"); - crc.reset(); - entry = null; - entryAtEOF = true; - } - return len; - } - - /** - * Closes the zip file. - * @exception IOException if a i/o error occured. - */ - public void close() throws IOException - { - super.close(); - crc = null; - entry = null; - entryAtEOF = true; - } - - /** - * Creates a new zip entry for the given name. This is equivalent - * to new ZipEntry(name). - * @param name the name of the zip entry. - */ - protected ZipEntry createZipEntry(String name) - { - return new ZipEntry(name); - } -} |