diff options
Diffstat (limited to 'libjava/classpath/gnu/javax/net/ssl/provider/ProtocolVersion.java')
| -rw-r--r-- | libjava/classpath/gnu/javax/net/ssl/provider/ProtocolVersion.java | 200 |
1 files changed, 200 insertions, 0 deletions
diff --git a/libjava/classpath/gnu/javax/net/ssl/provider/ProtocolVersion.java b/libjava/classpath/gnu/javax/net/ssl/provider/ProtocolVersion.java new file mode 100644 index 000000000..3c3f29a21 --- /dev/null +++ b/libjava/classpath/gnu/javax/net/ssl/provider/ProtocolVersion.java @@ -0,0 +1,200 @@ +/* ProtocolVersion.java -- An SSL version number. + 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.InputStream; +import java.io.IOException; + +public final class ProtocolVersion + implements Comparable<ProtocolVersion>, Constructed +{ + + // Constants and fields. + // ------------------------------------------------------------------------- + + public static final ProtocolVersion SSL_3 = new ProtocolVersion(3, 0); + public static final ProtocolVersion TLS_1 = new ProtocolVersion(3, 1); + public static final ProtocolVersion TLS_1_1 = new ProtocolVersion(3, 2); + + private final int major; + private final int minor; + + // Constructor. + // ------------------------------------------------------------------------- + + private ProtocolVersion(int major, int minor) + { + this.major = major; + this.minor = minor; + } + + // Class methods. + // ------------------------------------------------------------------------- + + public static ProtocolVersion read(InputStream in) throws IOException + { + int major = in.read() & 0xFF; + int minor = in.read() & 0xFF; + return getInstance(major, minor); + } + + public static ProtocolVersion forName (final String name) + { + if (name.equalsIgnoreCase ("SSLv3")) + return SSL_3; + if (name.equalsIgnoreCase ("TLSv1")) + return TLS_1; + if (name.equalsIgnoreCase("TLSv1.1")) + return TLS_1_1; + throw new IllegalArgumentException ("unknown protocol name: " + name); + } + + public static ProtocolVersion getInstance(final int major, final int minor) + { + if (major == 3) + { + switch (minor) + { + case 0: return SSL_3; + case 1: return TLS_1; + case 2: return TLS_1_1; + } + } + return new ProtocolVersion(major, minor); + } + + public static ProtocolVersion getInstance (final short raw_value) + { + int major = raw_value >>> 8 & 0xFF; + int minor = raw_value & 0xFF; + return getInstance (major, minor); + } + + // Instance methods. + // ------------------------------------------------------------------------- + + public int length () + { + return 2; + } + + public byte[] getEncoded() + { + return new byte[] { + (byte) major, (byte) minor + }; + } + + public int major() + { + return major; + } + + public int minor() + { + return minor; + } + + public int rawValue () + { + return (major << 8) | minor; + } + + public boolean equals(Object o) + { + if (!(o instanceof ProtocolVersion)) + { + return false; + } + return ((ProtocolVersion) o).major == this.major + && ((ProtocolVersion) o).minor == this.minor; + } + + public int hashCode() + { + return major << 8 | minor; + } + + public int compareTo(ProtocolVersion that) + { + if (major > that.major) + { + return 1; + } + else if (major < that.major) + { + return -1; + } + + if (minor > that.minor) + { + return 1; + } + else if (minor < that.minor) + { + return -1; + } + return 0; + } + + public String toString (String prefix) + { + return toString (); + } + + public String toString() + { + if (this == SSL_3) + { + return "SSLv3"; + } + else if (this == TLS_1) + { + return "TLSv1"; + } + else if (this == TLS_1_1) + { + return "TLSv1.1"; + } + else + { + return "Unsupported; major=" + major + " minor=" + minor; + } + } +} |