diff options
Diffstat (limited to 'libjava/classpath/gnu/java/net/BASE64.java')
| -rw-r--r-- | libjava/classpath/gnu/java/net/BASE64.java | 190 |
1 files changed, 0 insertions, 190 deletions
diff --git a/libjava/classpath/gnu/java/net/BASE64.java b/libjava/classpath/gnu/java/net/BASE64.java deleted file mode 100644 index 901aa0c35fc..00000000000 --- a/libjava/classpath/gnu/java/net/BASE64.java +++ /dev/null @@ -1,190 +0,0 @@ -/* BASE.java -- - Copyright (C) 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 gnu.java.net; - -/** - * Encodes and decodes text according to the BASE64 encoding. - * - * @author Chris Burdess (dog@gnu.org) - */ -public final class BASE64 -{ - private static final byte[] src = { - 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, 0x48, 0x49, 0x4a, - 0x4b, 0x4c, 0x4d, 0x4e, 0x4f, 0x50, 0x51, 0x52, 0x53, 0x54, - 0x55, 0x56, 0x57, 0x58, 0x59, 0x5a, 0x61, 0x62, 0x63, 0x64, - 0x65, 0x66, 0x67, 0x68, 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, - 0x6f, 0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77, 0x78, - 0x79, 0x7a, 0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, - 0x38, 0x39, 0x2b, 0x2f - }; - - private static final byte[] dst; - static - { - dst = new byte[0x100]; - for (int i = 0x0; i < 0xff; i++) - { - dst[i] = -1; - } - for (int i = 0; i < src.length; i++) - { - dst[src[i]] = (byte) i; - } - } - - private BASE64() - { - } - - /** - * Encode the specified byte array using the BASE64 algorithm. - * - * @param bs the source byte array - */ - public static byte[] encode(byte[] bs) - { - int si = 0, ti = 0; // source/target array indices - byte[] bt = new byte[((bs.length + 2) * 4) / 3]; // target byte array - for (; si < bs.length; si += 3) - { - int buflen = bs.length - si; - if (buflen == 1) - { - byte b = bs[si]; - int i = 0; - bt[ti++] = src[b >>> 2 & 0x3f]; - bt[ti++] = src[(b << 4 & 0x30) + (i >>> 4 & 0xf)]; - } - else if (buflen == 2) - { - byte b1 = bs[si], b2 = bs[si + 1]; - int i = 0; - bt[ti++] = src[b1 >>> 2 & 0x3f]; - bt[ti++] = src[(b1 << 4 & 0x30) + (b2 >>> 4 & 0xf)]; - bt[ti++] = src[(b2 << 2 & 0x3c) + (i >>> 6 & 0x3)]; - } - else - { - byte b1 = bs[si], b2 = bs[si + 1], b3 = bs[si + 2]; - bt[ti++] = src[b1 >>> 2 & 0x3f]; - bt[ti++] = src[(b1 << 4 & 0x30) + (b2 >>> 4 & 0xf)]; - bt[ti++] = src[(b2 << 2 & 0x3c) + (b3 >>> 6 & 0x3)]; - bt[ti++] = src[b3 & 0x3f]; - } - } - if (ti < bt.length) - { - byte[] tmp = new byte[ti]; - System.arraycopy(bt, 0, tmp, 0, ti); - bt = tmp; - } - /*while (ti < bt.length) - { - bt[ti++] = 0x3d; - }*/ - return bt; - } - - /** - * Decode the specified byte array using the BASE64 algorithm. - * - * @param bs the source byte array - */ - public static byte[] decode(byte[] bs) - { - int srclen = bs.length; - while (srclen > 0 && bs[srclen - 1] == 0x3d) - { - srclen--; /* strip padding character */ - } - byte[] buffer = new byte[srclen]; - int buflen = 0; - int si = 0; - int len = srclen - si; - while (len > 0) - { - byte b0 = dst[bs[si++] & 0xff]; - byte b2 = dst[bs[si++] & 0xff]; - buffer[buflen++] = (byte) (b0 << 2 & 0xfc | b2 >>> 4 & 0x3); - if (len > 2) - { - b0 = b2; - b2 = dst[bs[si++] & 0xff]; - buffer[buflen++] = (byte) (b0 << 4 & 0xf0 | b2 >>> 2 & 0xf); - if (len > 3) - { - b0 = b2; - b2 = dst[bs[si++] & 0xff]; - buffer[buflen++] = (byte) (b0 << 6 & 0xc0 | b2 & 0x3f); - } - } - len = srclen - si; - } - byte[] bt = new byte[buflen]; - System.arraycopy(buffer, 0, bt, 0, buflen); - return bt; - } - - public static void main(String[] args) - { - boolean decode = false; - for (int i = 0; i < args.length; i++) - { - if (args[i].equals("-d")) - { - decode = true; - } - else - { - try - { - byte[] in = args[i].getBytes("US-ASCII"); - byte[] out = decode ? decode(in) : encode(in); - System.out.println(args[i] + " = " + - new String(out, "US-ASCII")); - } - catch (java.io.UnsupportedEncodingException e) - { - e.printStackTrace(System.err); - } - } - } - } -} |