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author | upstream source tree <ports@midipix.org> | 2015-03-15 20:14:05 -0400 |
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committer | upstream source tree <ports@midipix.org> | 2015-03-15 20:14:05 -0400 |
commit | 554fd8c5195424bdbcabf5de30fdc183aba391bd (patch) | |
tree | 976dc5ab7fddf506dadce60ae936f43f58787092 /libjava/classpath/gnu/javax/net/ssl/provider/Random.java | |
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Diffstat (limited to 'libjava/classpath/gnu/javax/net/ssl/provider/Random.java')
-rw-r--r-- | libjava/classpath/gnu/javax/net/ssl/provider/Random.java | 150 |
1 files changed, 150 insertions, 0 deletions
diff --git a/libjava/classpath/gnu/javax/net/ssl/provider/Random.java b/libjava/classpath/gnu/javax/net/ssl/provider/Random.java new file mode 100644 index 000000000..bd5c037f5 --- /dev/null +++ b/libjava/classpath/gnu/javax/net/ssl/provider/Random.java @@ -0,0 +1,150 @@ +/* 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.PrintWriter; +import java.io.StringWriter; + +import java.nio.ByteBuffer; +import java.nio.ByteOrder; + +/** + * An SSL nonce. + * + * <pre> +struct +{ + uint32 gmt_unix_time; + opaque random_bytes[28]; +} Random; + */ +public class Random implements Builder, Constructed +{ + + // Fields. + // ------------------------------------------------------------------------- + + static final int RANDOM_LENGTH = 28; + + private final ByteBuffer buffer; + + // Constructors. + // ------------------------------------------------------------------------- + + public Random (final ByteBuffer buffer) + { + this.buffer = buffer.duplicate().order(ByteOrder.BIG_ENDIAN); + } + + public Random copy() + { + ByteBuffer buffer = ByteBuffer.allocate(32); + buffer.put((ByteBuffer) this.buffer.duplicate().position(0)); + return new Random(buffer); + } + + public int length() + { + return RANDOM_LENGTH + 4; + } + + public ByteBuffer buffer() + { + return ((ByteBuffer) buffer.duplicate().position(0).limit(length())).slice(); + } + + public int gmtUnixTime () + { + return buffer.getInt(0); + } + + public byte[] randomBytes() + { + byte[] buf = new byte[28]; + buffer.position (4); + buffer.get (buf); + return buf; + } + + public void setGmtUnixTime (final int gmtUnixTime) + { + buffer.putInt (0, gmtUnixTime); + } + + public void setRandomBytes (final byte[] randomBytes) + { + setRandomBytes (randomBytes, 0); + } + + public void setRandomBytes (final byte[] randomBytes, final int offset) + { + if (randomBytes.length - offset < RANDOM_LENGTH) + throw new IllegalArgumentException ("random value too short"); + buffer.position (4); + buffer.put (randomBytes, offset, RANDOM_LENGTH); + } + + public String toString (final String prefix) + { + StringWriter str = new StringWriter(); + PrintWriter out = new PrintWriter(str); + if (prefix != null) + out.print (prefix); + out.println("struct {"); + if (prefix != null) + out.print (prefix); + out.print (" gmt_unix_time: "); + out.print (gmtUnixTime ()); + out.println (";"); + if (prefix != null) + out.print (prefix); + out.print (" random_bytes: "); + out.print (Util.toHexString (randomBytes (), ':')); + out.println (";"); + if (prefix != null) + out.print (prefix); + out.print ("} Random;"); + return str.toString(); + } + + public String toString () + { + return toString (null); + } +} |