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Diffstat (limited to 'Java/b91cli.java')
| -rw-r--r-- | Java/b91cli.java | 181 |
1 files changed, 181 insertions, 0 deletions
diff --git a/Java/b91cli.java b/Java/b91cli.java new file mode 100644 index 0000000..7d39990 --- /dev/null +++ b/Java/b91cli.java @@ -0,0 +1,181 @@ +/* + * basE91 command line front-end + * + * Copyright (c) 2000-2006 Joachim Henke + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * + * - Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * - Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * - Neither the name of Joachim Henke nor the names of his contributors may + * be used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" + * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE + * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + */ + +import java.io.*; + +public class b91cli +{ + private static void encode(InputStream is, OutputStream os) + { + int s; + byte[] ibuf = new byte[53248]; + byte[] obuf = new byte[65536]; + basE91 b91 = new basE91(); + + try { + while ((s = is.read(ibuf)) > 0) { + s = b91.encode(ibuf, s, obuf); + os.write(obuf, 0, s); + } + s = b91.encEnd(obuf); + os.write(obuf, 0, s); + } catch (Exception e) { + System.err.println(e); + } + } + + private static void encodeWrap(InputStream is, OutputStream os) + { + int i, s; + int n = 0; + byte[] ibuf = new byte[53248]; + byte[] obuf = new byte[65536]; + char[] line = new char[76]; + basE91 b91 = new basE91(); + + try { + PrintStream ps = new PrintStream(os, false, "US-ASCII"); + + while ((s = is.read(ibuf)) > 0) { + s = b91.encode(ibuf, s, obuf); + for (i = 0; i < s; ++i) { + line[n++] = (char) obuf[i]; + if (n == 76) { + ps.println(line); + n = 0; + } + } + } + s = b91.encEnd(obuf); + for (i = 0; i < s; ++i) { + line[n++] = (char) obuf[i]; + if (n == 76) { + ps.println(line); + n = 0; + } + } + if (n > 0) + ps.println(new String(line, 0, n)); + } catch (Exception e) { + System.err.println(e); + } + } + + private static void decode(InputStream is, OutputStream os) + { + int s; + byte[] ibuf = new byte[65536]; + byte[] obuf = new byte[57344]; + basE91 b91 = new basE91(); + + try { + while ((s = is.read(ibuf)) > 0) { + s = b91.decode(ibuf, s, obuf); + os.write(obuf, 0, s); + } + s = b91.decEnd(obuf); + os.write(obuf, 0, s); + } catch (Exception e) { + System.err.println(e); + } + } + + private static void errExit(String msg) + { + System.err.println("syntax error - " + msg + "\nTry `-h' option for more information."); + System.exit(3); + } + + public static void main(String[] args) + { + int i; + boolean enc = true; + boolean lbr = true; + String ifn = null; + String ofn = null; + + for (i = 0; i < args.length; ++i) + if (args[i].length() == 2 && args[i].charAt(0) == '-') + switch (args[i].charAt(1)) { + case 'd': + enc = false; + break; + case 'u': + lbr = false; + break; + case 'h': + System.out.println("Usage: base91 [OPTION] infile [outfile]\n\n -d\tdecode a basE91 encoded file\n -u\tleave encoder output unformatted (disable line wrapping)\n -h\tdisplay this help and exit\n -V\toutput version information and exit"); + return; + case 'V': + System.out.println("base91 0.6.0\nCopyright (c) 2000-2006 Joachim Henke"); + return; + default: + errExit("invalid option: " + args[i]); + } + else if (ifn == null) + ifn = args[i]; + else if (ofn == null) + ofn = args[i]; + else + errExit("too many arguments: " + args[i]); + if (ifn == null) + errExit("file name missing"); + if (ofn == null) + if (enc) + ofn = ifn + (lbr ? "_b91.txt" : ".b91"); + else { + String lifn = ifn.toLowerCase(); + if (ifn.length() > 4 && lifn.endsWith(".b91")) + ofn = ifn.substring(0, ifn.length() - 4); + else if (ifn.length() > 8 && lifn.endsWith("_b91.txt")) + ofn = ifn.substring(0, ifn.length() - 8); + else + ofn = ifn + ".bin"; + } + + try { + FileInputStream ifs = new FileInputStream(ifn); + FileOutputStream ofs = new FileOutputStream(ofn); + + if (enc) + if (lbr) + encodeWrap(ifs, ofs); + else + encode(ifs, ofs); + else + decode(ifs, ofs); + ifs.close(); + ofs.close(); + } catch (Exception e) { + System.err.println(e); + } + } +} |