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+// --- BEGIN COPYRIGHT BLOCK ---
+// This program 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; version 2 of the License.
+//
+// This program 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 this program; if not, write to the Free Software Foundation, Inc.,
+// 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+//
+// (C) 2007 Red Hat, Inc.
+// All rights reserved.
+// --- END COPYRIGHT BLOCK ---
+package com.netscape.cmstools;
+
+
+import java.io.*;
+
+
+/**
+ * The BtoA class is a utility program designed to "translate" a BINARY
+ * BASE 64 encoded blob into an ASCII BASE 64 encoded blob. It assumes
+ * that the name of a data file is passed to the program via the command line,
+ * and that the contents contain a blob encoded in a BINARY BASE 64
+ * format.
+ *
+ * <P>
+ * The program may be invoked as follows:
+ * <PRE>
+ *
+ * BtoA &lt;input filename&gt; &lt;output filename&gt;
+ *
+ * NOTE: &lt;input filename&gt; must contain a BINARY
+ * BASE 64 encoded blob
+ *
+ * &lt;output filename&gt; contains an ASCII
+ * BASE 64 encoded blob
+ * </PRE>
+ *
+ * @version $Revision$, $Date$
+ */
+public class BtoA {
+ // Define constants
+ public static final int ARGC = 2;
+
+ public static void main(String argv[]) {
+
+ FileInputStream inputBlob = null;
+ FileOutputStream outputBlob = null;
+
+ // (1) Check that two arguments were submitted to the program
+ if (argv.length != ARGC) {
+ System.out.println("Usage: BtoA " +
+ "<input filename> " +
+ "<output filename>");
+ return;
+ }
+
+ // (2) Create a DataInputStream() object to the BASE 64
+ // encoded blob contained within the file
+ // specified on the command line
+ try {
+ inputBlob = new FileInputStream(argv[0]);
+ } catch (FileNotFoundException e) {
+ System.out.println("BtoA(): can''t find file " +
+ argv[0] + ":\n" + e);
+ return;
+ }
+
+ // (3) Create a FileOutputStream() object to the BASE 64
+ // specified output file
+ try {
+ outputBlob = new FileOutputStream(argv[1]);
+ } catch (IOException e) {
+ System.out.println("BtoA(): unable to open file " +
+ argv[1] + " for writing:\n" + e);
+ return;
+ }
+
+ // (4) Convert the BINARY BASE 64 blob into an ASCII BASE 64 blob
+
+ try {
+ byte data[] = new byte[inputBlob.available()];
+ inputBlob.read(data);
+ String out = com.netscape.osutil.OSUtil.BtoA(data);
+ outputBlob.write(out.getBytes());
+ } catch (IOException e) {
+ System.out.println("BtoA(): Unexpected BASE64 " +
+ "encoded error encountered:\n" +
+ e);
+ }
+
+ // (5) Close the DataInputStream() object
+ try {
+ inputBlob.close();
+ } catch (IOException e) {
+ System.out.println("BtoA(): Unexpected input error " +
+ "encountered while attempting to close() " +
+ argv[0] + ":\n" + e);
+ }
+
+ // (6) Close the FileOutputStream() object
+ try {
+ outputBlob.close();
+ } catch (IOException e) {
+ System.out.println("BtoA(): Unexpected output error " +
+ "encountered while attempting to close() " +
+ argv[1] + ":\n" + e);
+ }
+ }
+}
+