| /* Random.java -- SSL Random structure. |
| Copyright (C) 2006 Free Software Foundation, Inc. |
| |
| This file is a 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 of the License, 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; if not, write to the Free Software |
| Foundation, Inc., 51 Franklin St, 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.javax.net.ssl.provider; |
| |
| import java.io.ByteArrayOutputStream; |
| import java.io.InputStream; |
| import java.io.IOException; |
| import java.io.OutputStream; |
| import java.io.PrintWriter; |
| import java.io.StringWriter; |
| |
| class Random implements Constructed |
| { |
| |
| // Fields. |
| // ------------------------------------------------------------------------- |
| |
| private final int gmtUnixTime; |
| private final byte[] randomBytes; |
| |
| // Constructors. |
| // ------------------------------------------------------------------------- |
| |
| Random(int gmtUnixTime, byte[] randomBytes) |
| { |
| this.gmtUnixTime = gmtUnixTime; |
| this.randomBytes = (byte[]) randomBytes.clone(); |
| } |
| |
| // Class methods. |
| // ------------------------------------------------------------------------- |
| |
| static Random read(InputStream in) throws IOException |
| { |
| int time = (in.read() & 0xFF) << 24 | (in.read() & 0xFF) << 16 |
| | (in.read() & 0xFF) << 8 | (in.read() & 0xFF); |
| byte[] buf = new byte[28]; |
| in.read(buf); |
| return new Random(time, buf); |
| } |
| |
| // Instance methods. |
| // ------------------------------------------------------------------------- |
| |
| public void write(OutputStream out) throws IOException |
| { |
| out.write((gmtUnixTime >>> 24) & 0xFF); |
| out.write((gmtUnixTime >>> 16) & 0xFF); |
| out.write((gmtUnixTime >>> 8) & 0xFF); |
| out.write(gmtUnixTime & 0xFF); |
| out.write(randomBytes); |
| } |
| |
| byte[] getEncoded() |
| { |
| ByteArrayOutputStream bout = new ByteArrayOutputStream(32); |
| try |
| { |
| write(bout); |
| } |
| catch (IOException cantHappen) |
| { |
| throw new Error(cantHappen.toString()); |
| } |
| return bout.toByteArray(); |
| } |
| |
| int getTime() |
| { |
| return gmtUnixTime; |
| } |
| |
| byte[] getRandomBytes() |
| { |
| return randomBytes; |
| } |
| |
| public String toString() |
| { |
| StringWriter str = new StringWriter(); |
| PrintWriter out = new PrintWriter(str); |
| out.println("struct {"); |
| out.println(" gmt_unix_time = " + gmtUnixTime + ";"); |
| out.println(" random_bytes = " + Util.toHexString(randomBytes, ':') + ";"); |
| out.println("} Random;"); |
| return str.toString(); |
| } |
| } |