diff options
Diffstat (limited to 'libjava/java/util/zip/ZipFile.java')
| -rw-r--r-- | libjava/java/util/zip/ZipFile.java | 180 |
1 files changed, 0 insertions, 180 deletions
diff --git a/libjava/java/util/zip/ZipFile.java b/libjava/java/util/zip/ZipFile.java deleted file mode 100644 index 9085ec9c88b..00000000000 --- a/libjava/java/util/zip/ZipFile.java +++ /dev/null @@ -1,180 +0,0 @@ -/* Copyright (C) 1999 Cygnus Solutions - - This file is part of libgcj. - -This software is copyrighted work licensed under the terms of the -Libgcj License. Please consult the file "LIBGCJ_LICENSE" for -details. */ - -package java.util.zip; -import java.io.*; - -/** UNFINISHED, but can read non-comrepssed .zip archives. */ - -public class ZipFile implements ZipConstants -{ - - ZipEntry entries; - int numEntries; - RandomAccessFile file; - String name; - - public ZipFile (String fname) throws IOException - { - file = new RandomAccessFile(fname, "r"); - name = fname; - } - - public ZipFile (File f) throws IOException - { - file = new RandomAccessFile(f, "r"); - name = f.getName(); - } - - void readDirectory () throws IOException - { - long size = file.length (); - if (size < ZipConstants.END_CENTRAL_DIR_SIZE) - throw new IOException ("zipfile too short"); - // We do not handle a "zipfile comment", which the appnote says can - // be at the end of a .zip file. We could handle this by seeking - // to the beginning and reading forwards. - file.seek(size - ZipConstants.END_CENTRAL_DIR_SIZE); - if (file.read() != 'P' - || file.read() != 'K' - || file.read() != '\005' - || file.read() != '\006') - throw new IOException("not a valid zipfile"); - file.skipBytes(6); - numEntries = readu2(); - int dir_size = read4 (); // Read "size of the central directory". - file.seek(size - (dir_size + ZipConstants.END_CENTRAL_DIR_SIZE)); - - ZipEntry last = null; - for (int i = 0; i < numEntries; i++) - { - file.skipBytes(10); - int method = readu2(); - int modtime = readu2(); - int moddate = readu2(); - int crc = read4(); - int compressedSize = read4(); - int uncompressedSize = read4(); - int filenameLength = readu2(); - int extraLength = readu2(); - int commentLength = readu2(); - int diskNumberStart = readu2(); - int intAttributes = readu2(); - int extAttributes = read4(); - int relativeOffset = read4(); - byte[] bname = new byte[filenameLength]; - file.readFully(bname); - ZipEntry entry = new ZipEntry(new String(bname, "8859_1")); - if (extraLength > 0) - { - byte[] bextra = new byte[extraLength]; - file.readFully(bextra); - entry.extra = bextra; - } - if (commentLength > 0) - { - byte[] bcomment = new byte[commentLength]; - file.readFully(bcomment); - entry.comment = new String(bcomment, "8859_1"); - } - entry.compressedSize = compressedSize; - entry.size = uncompressedSize; - entry.crc = (long) crc & 0xffffffffL; - entry.method = method; - entry.relativeOffset = relativeOffset; - entry.time = ZipEntry.timeFromDOS(moddate, modtime); - if (last == null) - entries = entry; - else - last.next = entry; - last = entry; - } - } - - public java.util.Enumeration entries() - { - return new ZipEnumeration(this); - } - - public void close() throws IOException - { - // FIXME - check this - file.close(); - entries = null; - numEntries = 0; - } - - public ZipEntry getEntry(String name) - { - for (ZipEntry entry = entries; entry != null; entry = entry.next) - { - if (name.equals(entry.getName())) - return entry; - } - return null; - } - - public InputStream getInputStream(ZipEntry ze) throws IOException - { - // FIXME - does not handle compression! - byte[] buffer = new byte[(int) ze.getSize()]; - int data_offset = ZipConstants.LOCAL_FILE_HEADER_SIZE + name.length(); - if (ze.extra != null) - data_offset += ze.extra.length; - file.seek(ze.relativeOffset + data_offset); - file.readFully(buffer); - return new ByteArrayInputStream(buffer); - } - - public String getName () { return name; } - - private int readu2 () throws IOException - { - int byte0 = file.read(); - int byte1 = file.read(); - if (byte0 < 0 || byte1 < 0) - throw new EOFException(".zip archive ended prematurely"); - return ((byte1 & 0xFF) << 8) | (byte0 & 0xFF); - } - - private int read4 () throws IOException - { - int byte0 = file.read(); - int byte1 = file.read(); - int byte2 = file.read(); - int byte3 = file.read(); - if (byte3 < 0) - throw new EOFException(".zip archive ended prematurely"); - return ((byte3 & 0xFF) << 24) + ((byte2 & 0xFF) << 16) - + ((byte1 & 0xFF) << 8) + (byte0 & 0xFF); - } -} - -class ZipEnumeration implements java.util.Enumeration -{ - ZipEntry entry; - - ZipEnumeration (ZipFile zfile) - { - entry = zfile.entries; - } - - public boolean hasMoreElements () - { - return entry != null; - } - - public Object nextElement () - { - ZipEntry cur = entry; - if (cur == null) - throw new java.util.NoSuchElementException(); - entry = cur.next; - return cur; - } -} |