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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 <input filename> <output filename>
*
* NOTE: <input filename> must contain a BINARY
* BASE 64 encoded blob
*
* <output filename> 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);
}
}
}
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