--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/jdk/src/java.base/share/classes/sun/misc/UUEncoder.java Sun Aug 17 15:54:13 2014 +0100
@@ -0,0 +1,200 @@
+/*
+ * Copyright (c) 1995, 2004, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation. Oracle designates this
+ * particular file as subject to the "Classpath" exception as provided
+ * by Oracle in the LICENSE file that accompanied this code.
+ *
+ * This code 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
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+package sun.misc;
+
+import java.io.InputStream;
+import java.io.OutputStream;
+import java.io.PrintStream;
+import java.io.IOException;
+
+/**
+ * This class implements a Berkeley uu character encoder. This encoder
+ * was made famous by uuencode program.
+ *
+ * The basic character coding is algorithmic, taking 6 bits of binary
+ * data and adding it to an ASCII ' ' (space) character. This converts
+ * these six bits into a printable representation. Note that it depends
+ * on the ASCII character encoding standard for english. Groups of three
+ * bytes are converted into 4 characters by treating the three bytes
+ * a four 6 bit groups, group 1 is byte 1's most significant six bits,
+ * group 2 is byte 1's least significant two bits plus byte 2's four
+ * most significant bits. etc.
+ *
+ * In this encoding, the buffer prefix is:
+ * <pre>
+ * begin [mode] [filename]
+ * </pre>
+ *
+ * This is followed by one or more lines of the form:
+ * <pre>
+ * (len)(data)(data)(data) ...
+ * </pre>
+ * where (len) is the number of bytes on this line. Note that groupings
+ * are always four characters, even if length is not a multiple of three
+ * bytes. When less than three characters are encoded, the values of the
+ * last remaining bytes is undefined and should be ignored.
+ *
+ * The last line of data in a uuencoded file is represented by a single
+ * space character. This is translated by the decoding engine to a line
+ * length of zero. This is immediately followed by a line which contains
+ * the word 'end[newline]'
+ *
+ * @author Chuck McManis
+ * @see CharacterEncoder
+ * @see UUDecoder
+ */
+public class UUEncoder extends CharacterEncoder {
+
+ /**
+ * This name is stored in the begin line.
+ */
+ private String bufferName;
+
+ /**
+ * Represents UNIX(tm) mode bits. Generally three octal digits representing
+ * read, write, and execute permission of the owner, group owner, and
+ * others. They should be interpreted as the bit groups:
+ * (owner) (group) (others)
+ * rwx rwx rwx (r = read, w = write, x = execute)
+ *
+ * By default these are set to 644 (UNIX rw-r--r-- permissions).
+ */
+ private int mode;
+
+
+ /**
+ * Default - buffer begin line will be:
+ * <pre>
+ * begin 644 encoder.buf
+ * </pre>
+ */
+ public UUEncoder() {
+ bufferName = "encoder.buf";
+ mode = 644;
+ }
+
+ /**
+ * Specifies a name for the encoded buffer, begin line will be:
+ * <pre>
+ * begin 644 [FNAME]
+ * </pre>
+ */
+ public UUEncoder(String fname) {
+ bufferName = fname;
+ mode = 644;
+ }
+
+ /**
+ * Specifies a name and mode for the encoded buffer, begin line will be:
+ * <pre>
+ * begin [MODE] [FNAME]
+ * </pre>
+ */
+ public UUEncoder(String fname, int newMode) {
+ bufferName = fname;
+ mode = newMode;
+ }
+
+ /** number of bytes per atom in uuencoding is 3 */
+ protected int bytesPerAtom() {
+ return (3);
+ }
+
+ /** number of bytes per line in uuencoding is 45 */
+ protected int bytesPerLine() {
+ return (45);
+ }
+
+ /**
+ * encodeAtom - take three bytes and encodes them into 4 characters
+ * If len is less than 3 then remaining bytes are filled with '1'.
+ * This insures that the last line won't end in spaces and potentiallly
+ * be truncated.
+ */
+ protected void encodeAtom(OutputStream outStream, byte data[], int offset, int len)
+ throws IOException {
+ byte a, b = 1, c = 1;
+ int c1, c2, c3, c4;
+
+ a = data[offset];
+ if (len > 1) {
+ b = data[offset+1];
+ }
+ if (len > 2) {
+ c = data[offset+2];
+ }
+
+ c1 = (a >>> 2) & 0x3f;
+ c2 = ((a << 4) & 0x30) | ((b >>> 4) & 0xf);
+ c3 = ((b << 2) & 0x3c) | ((c >>> 6) & 0x3);
+ c4 = c & 0x3f;
+ outStream.write(c1 + ' ');
+ outStream.write(c2 + ' ');
+ outStream.write(c3 + ' ');
+ outStream.write(c4 + ' ');
+ return;
+ }
+
+ /**
+ * Encode the line prefix which consists of the single character. The
+ * lenght is added to the value of ' ' (32 decimal) and printed.
+ */
+ protected void encodeLinePrefix(OutputStream outStream, int length)
+ throws IOException {
+ outStream.write((length & 0x3f) + ' ');
+ }
+
+
+ /**
+ * The line suffix for uuencoded files is simply a new line.
+ */
+ protected void encodeLineSuffix(OutputStream outStream) throws IOException {
+ pStream.println();
+ }
+
+ /**
+ * encodeBufferPrefix writes the begin line to the output stream.
+ */
+ protected void encodeBufferPrefix(OutputStream a) throws IOException {
+ super.pStream = new PrintStream(a);
+ super.pStream.print("begin "+mode+" ");
+ if (bufferName != null) {
+ super.pStream.println(bufferName);
+ } else {
+ super.pStream.println("encoder.bin");
+ }
+ super.pStream.flush();
+ }
+
+ /**
+ * encodeBufferSuffix writes the single line containing space (' ') and
+ * the line containing the word 'end' to the output stream.
+ */
+ protected void encodeBufferSuffix(OutputStream a) throws IOException {
+ super.pStream.println(" \nend");
+ super.pStream.flush();
+ }
+
+}